---
_id: '21'
abstract:
- lang: eng
  text: Parvalbumin-positive (PV+) GABAergic interneurons in hippocampal microcircuits
    are thought to play a key role in several higher network functions, such as feedforward
    and feedback inhibition, network oscillations, and pattern separation. Fast lateral
    inhibition mediated by GABAergic interneurons may implement a winner-takes-all
    mechanism in the hippocampal input layer. However, it is not clear whether the
    functional connectivity rules of granule cells (GCs) and interneurons in the dentate
    gyrus are consistent with such a mechanism. Using simultaneous patch-clamp recordings
    from up to seven GCs and up to four PV+ interneurons in the dentate gyrus, we
    find that connectivity is structured in space, synapse-specific, and enriched
    in specific disynaptic motifs. In contrast to the neocortex, lateral inhibition
    in the dentate gyrus (in which a GC inhibits neighboring GCs via a PV+ interneuron)
    is ~ 10-times more abundant than recurrent inhibition (in which a GC inhibits
    itself). Thus, unique connectivity rules may enable the dentate gyrus to perform
    specific higher-order computations
acknowledgement: This project received funding from the European Research Council
  (ERC) under the European Union’s Horizon 2020 research and innovation programme
  (grant agreement No 692692) and the Fond zur Förderung der Wissenschaftlichen Forschung
  (Z 312-B27, Wittgenstein award), both to P.J..
article_number: '4605'
article_processing_charge: No
article_type: original
author:
- first_name: 'Claudia '
  full_name: 'Espinoza Martinez, Claudia '
  id: 31FFEE2E-F248-11E8-B48F-1D18A9856A87
  last_name: Espinoza Martinez
  orcid: 0000-0003-4710-2082
- first_name: José
  full_name: Guzmán, José
  id: 30CC5506-F248-11E8-B48F-1D18A9856A87
  last_name: Guzmán
  orcid: 0000-0003-2209-5242
- first_name: Xiaomin
  full_name: Zhang, Xiaomin
  id: 423EC9C2-F248-11E8-B48F-1D18A9856A87
  last_name: Zhang
  orcid: 0000-0003-0256-6529
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: Espinoza Martinez C, Guzmán J, Zhang X, Jonas PM. Parvalbumin+ interneurons
    obey unique connectivity rules and establish a powerful lateral-inhibition microcircuit
    in dentate gyrus. <i>Nature Communications</i>. 2018;9(1). doi:<a href="https://doi.org/10.1038/s41467-018-06899-3">10.1038/s41467-018-06899-3</a>
  apa: Espinoza Martinez, C., Guzmán, J., Zhang, X., &#38; Jonas, P. M. (2018). Parvalbumin+
    interneurons obey unique connectivity rules and establish a powerful lateral-inhibition
    microcircuit in dentate gyrus. <i>Nature Communications</i>. Nature Publishing
    Group. <a href="https://doi.org/10.1038/s41467-018-06899-3">https://doi.org/10.1038/s41467-018-06899-3</a>
  chicago: Espinoza Martinez, Claudia , José Guzmán, Xiaomin Zhang, and Peter M Jonas.
    “Parvalbumin+ Interneurons Obey Unique Connectivity Rules and Establish a Powerful
    Lateral-Inhibition Microcircuit in Dentate Gyrus.” <i>Nature Communications</i>.
    Nature Publishing Group, 2018. <a href="https://doi.org/10.1038/s41467-018-06899-3">https://doi.org/10.1038/s41467-018-06899-3</a>.
  ieee: C. Espinoza Martinez, J. Guzmán, X. Zhang, and P. M. Jonas, “Parvalbumin+
    interneurons obey unique connectivity rules and establish a powerful lateral-inhibition
    microcircuit in dentate gyrus,” <i>Nature Communications</i>, vol. 9, no. 1. Nature
    Publishing Group, 2018.
  ista: Espinoza Martinez C, Guzmán J, Zhang X, Jonas PM. 2018. Parvalbumin+ interneurons
    obey unique connectivity rules and establish a powerful lateral-inhibition microcircuit
    in dentate gyrus. Nature Communications. 9(1), 4605.
  mla: Espinoza Martinez, Claudia, et al. “Parvalbumin+ Interneurons Obey Unique Connectivity
    Rules and Establish a Powerful Lateral-Inhibition Microcircuit in Dentate Gyrus.”
    <i>Nature Communications</i>, vol. 9, no. 1, 4605, Nature Publishing Group, 2018,
    doi:<a href="https://doi.org/10.1038/s41467-018-06899-3">10.1038/s41467-018-06899-3</a>.
  short: C. Espinoza Martinez, J. Guzmán, X. Zhang, P.M. Jonas, Nature Communications
    9 (2018).
date_created: 2018-12-11T11:44:12Z
date_published: 2018-11-02T00:00:00Z
date_updated: 2026-08-28T22:30:41Z
day: '02'
ddc:
- '570'
department:
- _id: PeJo
doi: 10.1038/s41467-018-06899-3
ec_funded: 1
external_id:
  isi:
  - '000449069700009'
file:
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  checksum: 9fe2a63bd95a5067d896c087d07998f3
  content_type: application/pdf
  creator: dernst
  date_created: 2018-12-17T15:41:57Z
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  file_id: '5715'
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file_date_updated: 2020-07-14T12:45:28Z
has_accepted_license: '1'
intvolume: '         9'
isi: 1
issue: '1'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '11'
oa: 1
oa_version: Published Version
project:
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '692692'
  name: Biophysics and circuit function of a giant cortical glutamatergic synapse
- _id: 25C5A090-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z00312
  name: Synaptic communication in neuronal microcircuits
publication: Nature Communications
publication_status: published
publisher: Nature Publishing Group
publist_id: '8034'
quality_controlled: '1'
related_material:
  link:
  - description: News on IST Homepage
    relation: press_release
    url: https://ist.ac.at/en/news/lateral-inhibition-keeps-similar-memories-apart/
  record:
  - id: '6363'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Parvalbumin+ interneurons obey unique connectivity rules and establish a powerful
  lateral-inhibition microcircuit in dentate gyrus
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 9
year: '2018'
...
---
_id: '1117'
abstract:
- lang: eng
  text: 'GABAergic synapses in brain circuits generate inhibitory output signals with
    submillisecond latency and temporal precision. Whether the molecular identity
    of the release sensor contributes to these signaling properties remains unclear.
    Here, we examined the Ca^2+ sensor of exocytosis at GABAergic basket cell (BC)
    to Purkinje cell (PC) synapses in cerebellum. Immunolabeling suggested that BC
    terminals selectively expressed synaptotagmin 2 (Syt2), whereas synaptotagmin
    1 (Syt1) was enriched in excitatory terminals. Genetic elimination of Syt2 reduced
    action potential-evoked release to ∼10%, identifying Syt2 as the major Ca^2+ sensor
    at BC-PC synapses. Differential adenovirus-mediated rescue revealed that Syt2
    triggered release with shorter latency and higher temporal precision and mediated
    faster vesicle pool replenishment than Syt1. Furthermore, deletion of Syt2 severely
    reduced and delayed disynaptic inhibition following parallel fiber stimulation.
    Thus, the selective use of Syt2 as release sensor at BC-PC synapses ensures fast
    and efficient feedforward inhibition in cerebellar microcircuits. #bioimagingfacility-author'
acknowledged_ssus:
- _id: Bio
- _id: PreCl
article_processing_charge: No
author:
- first_name: Chong
  full_name: Chen, Chong
  id: 3DFD581A-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
- first_name: Itaru
  full_name: Arai, Itaru
  id: 32A73F6C-F248-11E8-B48F-1D18A9856A87
  last_name: Arai
- first_name: Rachel
  full_name: Satterield, Rachel
  last_name: Satterield
- first_name: Samuel
  full_name: Young, Samuel
  last_name: Young
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: Chen C, Arai  itaru, Satterield R, Young S, Jonas PM. Synaptotagmin 2 is the
    fast Ca2+ sensor at a central inhibitory synapse. <i>Cell Reports</i>. 2017;18(3):723-736.
    doi:<a href="https://doi.org/10.1016/j.celrep.2016.12.067">10.1016/j.celrep.2016.12.067</a>
  apa: Chen, C., Arai,  itaru, Satterield, R., Young, S., &#38; Jonas, P. M. (2017).
    Synaptotagmin 2 is the fast Ca2+ sensor at a central inhibitory synapse. <i>Cell
    Reports</i>. Cell Press. <a href="https://doi.org/10.1016/j.celrep.2016.12.067">https://doi.org/10.1016/j.celrep.2016.12.067</a>
  chicago: Chen, Chong, itaru Arai, Rachel Satterield, Samuel Young, and Peter M Jonas.
    “Synaptotagmin 2 Is the Fast Ca2+ Sensor at a Central Inhibitory Synapse.” <i>Cell
    Reports</i>. Cell Press, 2017. <a href="https://doi.org/10.1016/j.celrep.2016.12.067">https://doi.org/10.1016/j.celrep.2016.12.067</a>.
  ieee: C. Chen,  itaru Arai, R. Satterield, S. Young, and P. M. Jonas, “Synaptotagmin
    2 is the fast Ca2+ sensor at a central inhibitory synapse,” <i>Cell Reports</i>,
    vol. 18, no. 3. Cell Press, pp. 723–736, 2017.
  ista: Chen C, Arai  itaru, Satterield R, Young S, Jonas PM. 2017. Synaptotagmin
    2 is the fast Ca2+ sensor at a central inhibitory synapse. Cell Reports. 18(3),
    723–736.
  mla: Chen, Chong, et al. “Synaptotagmin 2 Is the Fast Ca2+ Sensor at a Central Inhibitory
    Synapse.” <i>Cell Reports</i>, vol. 18, no. 3, Cell Press, 2017, pp. 723–36, doi:<a
    href="https://doi.org/10.1016/j.celrep.2016.12.067">10.1016/j.celrep.2016.12.067</a>.
  short: C. Chen,  itaru Arai, R. Satterield, S. Young, P.M. Jonas, Cell Reports 18
    (2017) 723–736.
date_created: 2018-12-11T11:50:14Z
date_published: 2017-01-17T00:00:00Z
date_updated: 2026-04-08T14:09:28Z
day: '17'
ddc:
- '571'
department:
- _id: PeJo
doi: 10.1016/j.celrep.2016.12.067
ec_funded: 1
external_id:
  isi:
  - '000396470600013'
file:
- access_level: open_access
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:16:09Z
  date_updated: 2018-12-12T10:16:09Z
  file_id: '5195'
  file_name: IST-2017-751-v1+1_1-s2.0-S2211124716317740-main.pdf
  file_size: 4427591
  relation: main_file
file_date_updated: 2018-12-12T10:16:09Z
has_accepted_license: '1'
intvolume: '        18'
isi: 1
issue: '3'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: 723 - 736
project:
- _id: 25C26B1E-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P24909-B24
  name: Mechanisms of transmitter release at GABAergic synapses
- _id: 25C0F108-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '268548'
  name: Nanophysiology of fast-spiking, parvalbumin-expressing GABAergic interneurons
publication: Cell Reports
publication_identifier:
  issn:
  - 2211-1247
publication_status: published
publisher: Cell Press
publist_id: '6245'
pubrep_id: '751'
quality_controlled: '1'
related_material:
  record:
  - id: '324'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Synaptotagmin 2 is the fast Ca2+ sensor at a central inhibitory synapse
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 18
year: '2017'
...
---
_id: '1118'
abstract:
- lang: eng
  text: Sharp wave-ripple (SWR) oscillations play a key role in memory consolidation
    during non-rapid eye movement sleep, immobility, and consummatory behavior. However,
    whether temporally modulated synaptic excitation or inhibition underlies the ripples
    is controversial. To address this question, we performed simultaneous recordings
    of excitatory and inhibitory postsynaptic currents (EPSCs and IPSCs) and local
    field potentials (LFPs) in the CA1 region of awake mice in vivo. During SWRs,
    inhibition dominated over excitation, with a peak conductance ratio of 4.1 ± 0.5.
    Furthermore, the amplitude of SWR-associated IPSCs was positively correlated with
    SWR magnitude, whereas that of EPSCs was not. Finally, phase analysis indicated
    that IPSCs were phase-locked to individual ripple cycles, whereas EPSCs were uniformly
    distributed in phase space. Optogenetic inhibition indicated that PV+ interneurons
    provided a major contribution to SWR-associated IPSCs. Thus, phasic inhibition,
    but not excitation, shapes SWR oscillations in the hippocampal CA1 region in vivo.
acknowledged_ssus:
- _id: M-Shop
- _id: ScienComp
- _id: PreCl
article_processing_charge: No
author:
- first_name: Jian
  full_name: Gan, Jian
  id: 3614E438-F248-11E8-B48F-1D18A9856A87
  last_name: Gan
- first_name: Shih-Ming
  full_name: Weng, Shih-Ming
  id: 2F9C5AC8-F248-11E8-B48F-1D18A9856A87
  last_name: Weng
- first_name: Alejandro
  full_name: Pernia-Andrade, Alejandro
  id: 36963E98-F248-11E8-B48F-1D18A9856A87
  last_name: Pernia-Andrade
- first_name: Jozsef L
  full_name: Csicsvari, Jozsef L
  id: 3FA14672-F248-11E8-B48F-1D18A9856A87
  last_name: Csicsvari
  orcid: 0000-0002-5193-4036
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: Gan J, Weng S-M, Pernia-Andrade A, Csicsvari JL, Jonas PM. Phase-locked inhibition,
    but not excitation, underlies hippocampal ripple oscillations in awake mice in
    vivo. <i>Neuron</i>. 2017;93(2):308-314. doi:<a href="https://doi.org/10.1016/j.neuron.2016.12.018">10.1016/j.neuron.2016.12.018</a>
  apa: Gan, J., Weng, S.-M., Pernia-Andrade, A., Csicsvari, J. L., &#38; Jonas, P.
    M. (2017). Phase-locked inhibition, but not excitation, underlies hippocampal
    ripple oscillations in awake mice in vivo. <i>Neuron</i>. Elsevier. <a href="https://doi.org/10.1016/j.neuron.2016.12.018">https://doi.org/10.1016/j.neuron.2016.12.018</a>
  chicago: Gan, Jian, Shih-Ming Weng, Alejandro Pernia-Andrade, Jozsef L Csicsvari,
    and Peter M Jonas. “Phase-Locked Inhibition, but Not Excitation, Underlies Hippocampal
    Ripple Oscillations in Awake Mice in Vivo.” <i>Neuron</i>. Elsevier, 2017. <a
    href="https://doi.org/10.1016/j.neuron.2016.12.018">https://doi.org/10.1016/j.neuron.2016.12.018</a>.
  ieee: J. Gan, S.-M. Weng, A. Pernia-Andrade, J. L. Csicsvari, and P. M. Jonas, “Phase-locked
    inhibition, but not excitation, underlies hippocampal ripple oscillations in awake
    mice in vivo,” <i>Neuron</i>, vol. 93, no. 2. Elsevier, pp. 308–314, 2017.
  ista: Gan J, Weng S-M, Pernia-Andrade A, Csicsvari JL, Jonas PM. 2017. Phase-locked
    inhibition, but not excitation, underlies hippocampal ripple oscillations in awake
    mice in vivo. Neuron. 93(2), 308–314.
  mla: Gan, Jian, et al. “Phase-Locked Inhibition, but Not Excitation, Underlies Hippocampal
    Ripple Oscillations in Awake Mice in Vivo.” <i>Neuron</i>, vol. 93, no. 2, Elsevier,
    2017, pp. 308–14, doi:<a href="https://doi.org/10.1016/j.neuron.2016.12.018">10.1016/j.neuron.2016.12.018</a>.
  short: J. Gan, S.-M. Weng, A. Pernia-Andrade, J.L. Csicsvari, P.M. Jonas, Neuron
    93 (2017) 308–314.
date_created: 2018-12-11T11:50:15Z
date_published: 2017-01-18T00:00:00Z
date_updated: 2025-04-15T07:20:01Z
day: '18'
ddc:
- '571'
department:
- _id: PeJo
- _id: JoCs
doi: 10.1016/j.neuron.2016.12.018
ec_funded: 1
external_id:
  isi:
  - '000396428200010'
file:
- access_level: open_access
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:08:56Z
  date_updated: 2018-12-12T10:08:56Z
  file_id: '4719'
  file_name: IST-2017-752-v1+1_1-s2.0-S0896627316309606-main.pdf
  file_size: 2738950
  relation: main_file
file_date_updated: 2018-12-12T10:08:56Z
has_accepted_license: '1'
intvolume: '        93'
isi: 1
issue: '2'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: 308 - 314
project:
- _id: 25C26B1E-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P24909-B24
  name: Mechanisms of transmitter release at GABAergic synapses
- _id: 25C0F108-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '268548'
  name: Nanophysiology of fast-spiking, parvalbumin-expressing GABAergic interneurons
publication: Neuron
publication_status: published
publisher: Elsevier
publist_id: '6244'
pubrep_id: '752'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Phase-locked inhibition, but not excitation, underlies hippocampal ripple oscillations
  in awake mice in vivo
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 93
year: '2017'
...
---
_id: '630'
abstract:
- lang: eng
  text: 'Background: Standards have become available to share semantically encoded
    vital parameters from medical devices, as required for example by personal healthcare
    records. Standardised sharing of biosignal data largely remains open. Objectives:
    The goal of this work is to explore available biosignal file format and data exchange
    standards and profiles, and to conceptualise end-To-end solutions. Methods: The
    authors reviewed and discussed available biosignal file format standards with
    other members of international standards development organisations (SDOs). Results:
    A raw concept for standards based acquisition, storage, archiving and sharing
    of biosignals was developed. The GDF format may serve for storing biosignals.
    Signals can then be shared using FHIR resources and may be stored on FHIR servers
    or in DICOM archives, with DICOM waveforms as one possible format. Conclusion:
    Currently a group of international SDOs (e.g. HL7, IHE, DICOM, IEEE) is engaged
    in intensive discussions. This discussion extends existing work that already was
    adopted by large implementer communities. The concept presented here only reports
    the current status of the discussion in Austria. The discussion will continue
    internationally, with results to be expected over the coming years.'
alternative_title:
- Studies in Health Technology and Informatics
article_processing_charge: No
author:
- first_name: Stefan
  full_name: Sauermann, Stefan
  last_name: Sauermann
- first_name: Veronika
  full_name: David, Veronika
  last_name: David
- first_name: Alois
  full_name: Schlögl, Alois
  id: 45BF87EE-F248-11E8-B48F-1D18A9856A87
  last_name: Schlögl
  orcid: 0000-0002-5621-8100
- first_name: Reinhard
  full_name: Egelkraut, Reinhard
  last_name: Egelkraut
- first_name: Matthias
  full_name: Frohner, Matthias
  last_name: Frohner
- first_name: Birgit
  full_name: Pohn, Birgit
  last_name: Pohn
- first_name: Philipp
  full_name: Urbauer, Philipp
  last_name: Urbauer
- first_name: Alexander
  full_name: Mense, Alexander
  last_name: Mense
citation:
  ama: 'Sauermann S, David V, Schlögl A, et al. Biosignals standards and FHIR: The
    way to go. In: Vol 236. IOS Press; 2017:356-362. doi:<a href="https://doi.org/10.3233/978-1-61499-759-7-356">10.3233/978-1-61499-759-7-356</a>'
  apa: 'Sauermann, S., David, V., Schlögl, A., Egelkraut, R., Frohner, M., Pohn, B.,
    … Mense, A. (2017). Biosignals standards and FHIR: The way to go (Vol. 236, pp.
    356–362). Presented at the eHealth: Health Informatics Meets eHealth, Vienna,
    Austria: IOS Press. <a href="https://doi.org/10.3233/978-1-61499-759-7-356">https://doi.org/10.3233/978-1-61499-759-7-356</a>'
  chicago: 'Sauermann, Stefan, Veronika David, Alois Schlögl, Reinhard Egelkraut,
    Matthias Frohner, Birgit Pohn, Philipp Urbauer, and Alexander Mense. “Biosignals
    Standards and FHIR: The Way to Go,” 236:356–62. IOS Press, 2017. <a href="https://doi.org/10.3233/978-1-61499-759-7-356">https://doi.org/10.3233/978-1-61499-759-7-356</a>.'
  ieee: 'S. Sauermann <i>et al.</i>, “Biosignals standards and FHIR: The way to go,”
    presented at the eHealth: Health Informatics Meets eHealth, Vienna, Austria, 2017,
    vol. 236, pp. 356–362.'
  ista: 'Sauermann S, David V, Schlögl A, Egelkraut R, Frohner M, Pohn B, Urbauer
    P, Mense A. 2017. Biosignals standards and FHIR: The way to go. eHealth: Health
    Informatics Meets eHealth, Studies in Health Technology and Informatics, vol.
    236, 356–362.'
  mla: 'Sauermann, Stefan, et al. <i>Biosignals Standards and FHIR: The Way to Go</i>.
    Vol. 236, IOS Press, 2017, pp. 356–62, doi:<a href="https://doi.org/10.3233/978-1-61499-759-7-356">10.3233/978-1-61499-759-7-356</a>.'
  short: S. Sauermann, V. David, A. Schlögl, R. Egelkraut, M. Frohner, B. Pohn, P.
    Urbauer, A. Mense, in:, IOS Press, 2017, pp. 356–362.
conference:
  end_date: 2017-05-24
  location: Vienna, Austria
  name: 'eHealth: Health Informatics Meets eHealth'
  start_date: 2017-05-23
date_created: 2018-12-11T11:47:36Z
date_published: 2017-01-01T00:00:00Z
date_updated: 2025-09-11T07:27:53Z
day: '01'
ddc:
- '005'
department:
- _id: ScienComp
- _id: PeJo
doi: 10.3233/978-1-61499-759-7-356
external_id:
  isi:
  - '000426828000047'
file:
- access_level: open_access
  checksum: 1254dcc5b04a996d97fad9a726b42727
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:11:56Z
  date_updated: 2020-07-14T12:47:27Z
  file_id: '4913'
  file_name: IST-2017-906-v1+1_SHTI236-0356.pdf
  file_size: 443635
  relation: main_file
file_date_updated: 2020-07-14T12:47:27Z
has_accepted_license: '1'
intvolume: '       236'
isi: 1
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc/4.0/
month: '01'
oa: 1
oa_version: Published Version
page: 356 - 362
publication_identifier:
  isbn:
  - 978-161499758-0
publication_status: published
publisher: IOS Press
publist_id: '7164'
pubrep_id: '906'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Biosignals standards and FHIR: The way to go'
tmp:
  image: /images/cc_by_nc.png
  legal_code_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
  short: CC BY-NC (4.0)
type: conference
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 236
year: '2017'
...
---
_id: '800'
abstract:
- lang: eng
  text: Gamma oscillations (30–150 Hz) in neuronal networks are associated with the
    processing and recall of information. We measured local field potentials in the
    dentate gyrus of freely moving mice and found that gamma activity occurs in bursts,
    which are highly heterogeneous in their spatial extensions, ranging from focal
    to global coherent events. Synaptic communication among perisomatic-inhibitory
    interneurons (PIIs) is thought to play an important role in the generation of
    hippocampal gamma patterns. However, how neuronal circuits can generate synchronous
    oscillations at different spatial scales is unknown. We analyzed paired recordings
    in dentate gyrus slices and show that synaptic signaling at interneuron-interneuron
    synapses is distance dependent. Synaptic strength declines whereas the duration
    of inhibitory signals increases with axonal distance among interconnected PIIs.
    Using neuronal network modeling, we show that distance-dependent inhibition generates
    multiple highly synchronous focal gamma bursts allowing the network to process
    complex inputs in parallel in flexibly organized neuronal centers.
article_number: '758'
article_processing_charge: No
author:
- first_name: Michael
  full_name: Strüber, Michael
  last_name: Strüber
- first_name: Jonas
  full_name: Sauer, Jonas
  last_name: Sauer
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
- first_name: Marlene
  full_name: Bartos, Marlene
  last_name: Bartos
citation:
  ama: Strüber M, Sauer J, Jonas PM, Bartos M. Distance-dependent inhibition facilitates
    focality of gamma oscillations in the dentate gyrus. <i>Nature Communications</i>.
    2017;8(1). doi:<a href="https://doi.org/10.1038/s41467-017-00936-3">10.1038/s41467-017-00936-3</a>
  apa: Strüber, M., Sauer, J., Jonas, P. M., &#38; Bartos, M. (2017). Distance-dependent
    inhibition facilitates focality of gamma oscillations in the dentate gyrus. <i>Nature
    Communications</i>. Nature Publishing Group. <a href="https://doi.org/10.1038/s41467-017-00936-3">https://doi.org/10.1038/s41467-017-00936-3</a>
  chicago: Strüber, Michael, Jonas Sauer, Peter M Jonas, and Marlene Bartos. “Distance-Dependent
    Inhibition Facilitates Focality of Gamma Oscillations in the Dentate Gyrus.” <i>Nature
    Communications</i>. Nature Publishing Group, 2017. <a href="https://doi.org/10.1038/s41467-017-00936-3">https://doi.org/10.1038/s41467-017-00936-3</a>.
  ieee: M. Strüber, J. Sauer, P. M. Jonas, and M. Bartos, “Distance-dependent inhibition
    facilitates focality of gamma oscillations in the dentate gyrus,” <i>Nature Communications</i>,
    vol. 8, no. 1. Nature Publishing Group, 2017.
  ista: Strüber M, Sauer J, Jonas PM, Bartos M. 2017. Distance-dependent inhibition
    facilitates focality of gamma oscillations in the dentate gyrus. Nature Communications.
    8(1), 758.
  mla: Strüber, Michael, et al. “Distance-Dependent Inhibition Facilitates Focality
    of Gamma Oscillations in the Dentate Gyrus.” <i>Nature Communications</i>, vol.
    8, no. 1, 758, Nature Publishing Group, 2017, doi:<a href="https://doi.org/10.1038/s41467-017-00936-3">10.1038/s41467-017-00936-3</a>.
  short: M. Strüber, J. Sauer, P.M. Jonas, M. Bartos, Nature Communications 8 (2017).
date_created: 2018-12-11T11:48:34Z
date_published: 2017-10-02T00:00:00Z
date_updated: 2025-07-10T11:54:59Z
day: '02'
ddc:
- '571'
department:
- _id: PeJo
doi: 10.1038/s41467-017-00936-3
ec_funded: 1
external_id:
  isi:
  - '000412053100004'
file:
- access_level: open_access
  checksum: 7e2c7621afd5f802338e92e8619f024d
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:15:17Z
  date_updated: 2020-07-14T12:48:07Z
  file_id: '5135'
  file_name: IST-2017-914-v1+1_s41467-017-00936-3.pdf
  file_size: 4261832
  relation: main_file
file_date_updated: 2020-07-14T12:48:07Z
has_accepted_license: '1'
intvolume: '         8'
isi: 1
issue: '1'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
project:
- _id: 25C0F108-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '268548'
  name: Nanophysiology of fast-spiking, parvalbumin-expressing GABAergic interneurons
publication: Nature Communications
publication_identifier:
  issn:
  - 2041-1723
publication_status: published
publisher: Nature Publishing Group
publist_id: '6853'
pubrep_id: '914'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Distance-dependent inhibition facilitates focality of gamma oscillations in
  the dentate gyrus
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8
year: '2017'
...
---
_id: '706'
abstract:
- lang: eng
  text: A hippocampal mossy fiber synapse has a complex structure and is implicated
    in learning and memory. In this synapse, the mossy fiber boutons attach to the
    dendritic shaft by puncta adherentia junctions and wrap around a multiply-branched
    spine, forming synaptic junctions. We have recently shown using transmission electron
    microscopy, immunoelectron microscopy and serial block face-scanning electron
    microscopy that atypical puncta adherentia junctions are formed in the afadin-deficient
    mossy fiber synapse and that the complexity of postsynaptic spines and mossy fiber
    boutons, the number of spine heads, the area of postsynaptic densities and the
    density of synaptic vesicles docked to active zones are decreased in the afadin-deficient
    synapse. We investigated here the roles of afadin in the functional differentiations
    of the mossy fiber synapse using the afadin-deficient mice. The electrophysiological
    studies showed that both the release probability of glutamate and the postsynaptic
    responsiveness to glutamate were markedly reduced, but not completely lost, in
    the afadin-deficient mossy fiber synapse, whereas neither long-term potentiation
    nor long-term depression was affected. These results indicate that afadin plays
    roles in the functional differentiations of the presynapse and the postsynapse
    of the hippocampal mossy fiber synapse.
article_processing_charge: No
author:
- first_name: Xiaoqi
  full_name: Geng, Xiaoqi
  id: 3395256A-F248-11E8-B48F-1D18A9856A87
  last_name: Geng
- first_name: Tomohiko
  full_name: Maruo, Tomohiko
  last_name: Maruo
- first_name: Kenji
  full_name: Mandai, Kenji
  last_name: Mandai
- first_name: Irwan
  full_name: Supriyanto, Irwan
  last_name: Supriyanto
- first_name: Muneaki
  full_name: Miyata, Muneaki
  last_name: Miyata
- first_name: Shotaro
  full_name: Sakakibara, Shotaro
  last_name: Sakakibara
- first_name: Akira
  full_name: Mizoguchi, Akira
  last_name: Mizoguchi
- first_name: Yoshimi
  full_name: Takai, Yoshimi
  last_name: Takai
- first_name: Masahiro
  full_name: Mori, Masahiro
  last_name: Mori
citation:
  ama: Geng X, Maruo T, Mandai K, et al. Roles of afadin in functional differentiations
    of hippocampal mossy fiber synapse. <i>Genes to Cells</i>. 2017;22(8):715-722.
    doi:<a href="https://doi.org/10.1111/gtc.12508">10.1111/gtc.12508</a>
  apa: Geng, X., Maruo, T., Mandai, K., Supriyanto, I., Miyata, M., Sakakibara, S.,
    … Mori, M. (2017). Roles of afadin in functional differentiations of hippocampal
    mossy fiber synapse. <i>Genes to Cells</i>. Wiley-Blackwell. <a href="https://doi.org/10.1111/gtc.12508">https://doi.org/10.1111/gtc.12508</a>
  chicago: Geng, Xiaoqi, Tomohiko Maruo, Kenji Mandai, Irwan Supriyanto, Muneaki Miyata,
    Shotaro Sakakibara, Akira Mizoguchi, Yoshimi Takai, and Masahiro Mori. “Roles
    of Afadin in Functional Differentiations of Hippocampal Mossy Fiber Synapse.”
    <i>Genes to Cells</i>. Wiley-Blackwell, 2017. <a href="https://doi.org/10.1111/gtc.12508">https://doi.org/10.1111/gtc.12508</a>.
  ieee: X. Geng <i>et al.</i>, “Roles of afadin in functional differentiations of
    hippocampal mossy fiber synapse,” <i>Genes to Cells</i>, vol. 22, no. 8. Wiley-Blackwell,
    pp. 715–722, 2017.
  ista: Geng X, Maruo T, Mandai K, Supriyanto I, Miyata M, Sakakibara S, Mizoguchi
    A, Takai Y, Mori M. 2017. Roles of afadin in functional differentiations of hippocampal
    mossy fiber synapse. Genes to Cells. 22(8), 715–722.
  mla: Geng, Xiaoqi, et al. “Roles of Afadin in Functional Differentiations of Hippocampal
    Mossy Fiber Synapse.” <i>Genes to Cells</i>, vol. 22, no. 8, Wiley-Blackwell,
    2017, pp. 715–22, doi:<a href="https://doi.org/10.1111/gtc.12508">10.1111/gtc.12508</a>.
  short: X. Geng, T. Maruo, K. Mandai, I. Supriyanto, M. Miyata, S. Sakakibara, A.
    Mizoguchi, Y. Takai, M. Mori, Genes to Cells 22 (2017) 715–722.
date_created: 2018-12-11T11:48:02Z
date_published: 2017-08-01T00:00:00Z
date_updated: 2025-09-10T11:06:14Z
day: '01'
department:
- _id: PeJo
doi: 10.1111/gtc.12508
external_id:
  isi:
  - '000409224300003'
intvolume: '        22'
isi: 1
issue: '8'
language:
- iso: eng
month: '08'
oa_version: None
page: 715 - 722
publication: Genes to Cells
publication_identifier:
  issn:
  - 1356-9597
publication_status: published
publisher: Wiley-Blackwell
publist_id: '6987'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Roles of afadin in functional differentiations of hippocampal mossy fiber synapse
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 22
year: '2017'
...
---
_id: '749'
abstract:
- lang: eng
  text: 'Synaptotagmin 7 (Syt7) is thought to be a Ca2+ sensor that mediates asynchronous
    transmitter release and facilitation at synapses. However, Syt7 is strongly expressed
    in fast-spiking, parvalbumin-expressing GABAergic interneurons, and the output
    synapses of these neurons produce only minimal asynchronous release and show depression
    rather than facilitation. To resolve this apparent contradiction, we examined
    the effects of genetic elimination of Syt7 on synaptic transmission at the GABAergic
    basket cell (BC)-Purkinje cell (PC) synapse in cerebellum. Our results indicate
    that at the BC-PC synapse, Syt7 contributes to asynchronous release, pool replenishment,
    and facilitation. In combination, these three effects ensure efficient transmitter
    release during high-frequency activity and guarantee frequency independence of
    inhibition. Our results identify a distinct function of Syt7: ensuring the efficiency
    of high-frequency inhibitory synaptic transmission'
acknowledged_ssus:
- _id: PreCl
article_processing_charge: No
author:
- first_name: Chong
  full_name: Chen, Chong
  id: 3DFD581A-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
- first_name: Rachel
  full_name: Satterfield, Rachel
  last_name: Satterfield
- first_name: Samuel
  full_name: Young, Samuel
  last_name: Young
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: Chen C, Satterfield R, Young S, Jonas PM. Triple function of Synaptotagmin
    7 ensures efficiency of high-frequency transmission at central GABAergic synapses.
    <i>Cell Reports</i>. 2017;21(8):2082-2089. doi:<a href="https://doi.org/10.1016/j.celrep.2017.10.122">10.1016/j.celrep.2017.10.122</a>
  apa: Chen, C., Satterfield, R., Young, S., &#38; Jonas, P. M. (2017). Triple function
    of Synaptotagmin 7 ensures efficiency of high-frequency transmission at central
    GABAergic synapses. <i>Cell Reports</i>. Cell Press. <a href="https://doi.org/10.1016/j.celrep.2017.10.122">https://doi.org/10.1016/j.celrep.2017.10.122</a>
  chicago: Chen, Chong, Rachel Satterfield, Samuel Young, and Peter M Jonas. “Triple
    Function of Synaptotagmin 7 Ensures Efficiency of High-Frequency Transmission
    at Central GABAergic Synapses.” <i>Cell Reports</i>. Cell Press, 2017. <a href="https://doi.org/10.1016/j.celrep.2017.10.122">https://doi.org/10.1016/j.celrep.2017.10.122</a>.
  ieee: C. Chen, R. Satterfield, S. Young, and P. M. Jonas, “Triple function of Synaptotagmin
    7 ensures efficiency of high-frequency transmission at central GABAergic synapses,”
    <i>Cell Reports</i>, vol. 21, no. 8. Cell Press, pp. 2082–2089, 2017.
  ista: Chen C, Satterfield R, Young S, Jonas PM. 2017. Triple function of Synaptotagmin
    7 ensures efficiency of high-frequency transmission at central GABAergic synapses.
    Cell Reports. 21(8), 2082–2089.
  mla: Chen, Chong, et al. “Triple Function of Synaptotagmin 7 Ensures Efficiency
    of High-Frequency Transmission at Central GABAergic Synapses.” <i>Cell Reports</i>,
    vol. 21, no. 8, Cell Press, 2017, pp. 2082–89, doi:<a href="https://doi.org/10.1016/j.celrep.2017.10.122">10.1016/j.celrep.2017.10.122</a>.
  short: C. Chen, R. Satterfield, S. Young, P.M. Jonas, Cell Reports 21 (2017) 2082–2089.
corr_author: '1'
date_created: 2018-12-11T11:48:18Z
date_published: 2017-11-21T00:00:00Z
date_updated: 2026-04-08T14:09:28Z
day: '21'
ddc:
- '570'
- '571'
department:
- _id: PeJo
doi: 10.1016/j.celrep.2017.10.122
ec_funded: 1
external_id:
  isi:
  - '000416216700007'
file:
- access_level: open_access
  checksum: a6afa3764909bf6edafa07982d8e1cee
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:09:14Z
  date_updated: 2020-07-14T12:47:59Z
  file_id: '4737'
  file_name: IST-2017-874-v1+1_PIIS2211124717316029.pdf
  file_size: 2759195
  relation: main_file
file_date_updated: 2020-07-14T12:47:59Z
has_accepted_license: '1'
intvolume: '        21'
isi: 1
issue: '8'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
page: 2082 - 2089
project:
- _id: 25C26B1E-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P24909-B24
  name: Mechanisms of transmitter release at GABAergic synapses
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '692692'
  name: Biophysics and circuit function of a giant cortical glutamatergic synapse
publication: Cell Reports
publication_identifier:
  issn:
  - 2211-1247
publication_status: published
publisher: Cell Press
publist_id: '6907'
pubrep_id: '874'
quality_controlled: '1'
related_material:
  record:
  - id: '324'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Triple function of Synaptotagmin 7 ensures efficiency of high-frequency transmission
  at central GABAergic synapses
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 21
year: '2017'
...
---
_id: '991'
abstract:
- lang: eng
  text: Synaptotagmin 7 (Syt7) was originally identified as a slow Ca2+ sensor for
    lysosome fusion, but its function at fast synapses is controversial. The paper
    by Luo and Südhof (2017) in this issue of Neuron shows that at the calyx of Held
    in the auditory brainstem Syt7 triggers asynchronous release during stimulus trains,
    resulting in reliable and temporally precise high-frequency transmission. Thus,
    a slow Ca2+ sensor contributes to the fast signaling properties of the calyx synapse.
article_processing_charge: No
author:
- first_name: Chong
  full_name: Chen, Chong
  id: 3DFD581A-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: 'Chen C, Jonas PM. Synaptotagmins: That’s why so many. <i>Neuron</i>. 2017;94(4):694-696.
    doi:<a href="https://doi.org/10.1016/j.neuron.2017.05.011">10.1016/j.neuron.2017.05.011</a>'
  apa: 'Chen, C., &#38; Jonas, P. M. (2017). Synaptotagmins: That’s why so many. <i>Neuron</i>.
    Elsevier. <a href="https://doi.org/10.1016/j.neuron.2017.05.011">https://doi.org/10.1016/j.neuron.2017.05.011</a>'
  chicago: 'Chen, Chong, and Peter M Jonas. “Synaptotagmins: That’s Why so Many.”
    <i>Neuron</i>. Elsevier, 2017. <a href="https://doi.org/10.1016/j.neuron.2017.05.011">https://doi.org/10.1016/j.neuron.2017.05.011</a>.'
  ieee: 'C. Chen and P. M. Jonas, “Synaptotagmins: That’s why so many,” <i>Neuron</i>,
    vol. 94, no. 4. Elsevier, pp. 694–696, 2017.'
  ista: 'Chen C, Jonas PM. 2017. Synaptotagmins: That’s why so many. Neuron. 94(4),
    694–696.'
  mla: 'Chen, Chong, and Peter M. Jonas. “Synaptotagmins: That’s Why so Many.” <i>Neuron</i>,
    vol. 94, no. 4, Elsevier, 2017, pp. 694–96, doi:<a href="https://doi.org/10.1016/j.neuron.2017.05.011">10.1016/j.neuron.2017.05.011</a>.'
  short: C. Chen, P.M. Jonas, Neuron 94 (2017) 694–696.
date_created: 2018-12-11T11:49:34Z
date_published: 2017-05-17T00:00:00Z
date_updated: 2026-04-16T10:05:51Z
day: '17'
department:
- _id: PeJo
doi: 10.1016/j.neuron.2017.05.011
external_id:
  isi:
  - '000401415100002'
intvolume: '        94'
isi: 1
issue: '4'
language:
- iso: eng
month: '05'
oa_version: None
page: 694 - 696
publication: Neuron
publication_identifier:
  issn:
  - 0896-6273
publication_status: published
publisher: Elsevier
publist_id: '6408'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Synaptotagmins: That’s why so many'
type: journal_article
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 94
year: '2017'
...
---
_id: '1142'
abstract:
- lang: eng
  text: Hemolysis drives susceptibility to bacterial infections and predicts poor
    outcome from sepsis. These detrimental effects are commonly considered to be a
    consequence of heme-iron serving as a nutrient for bacteria. We employed a Gram-negative
    sepsis model and found that elevated heme levels impaired the control of bacterial
    proliferation independently of heme-iron acquisition by pathogens. Heme strongly
    inhibited phagocytosis and the migration of human and mouse phagocytes by disrupting
    actin cytoskeletal dynamics via activation of the GTP-binding Rho family protein
    Cdc42 by the guanine nucleotide exchange factor DOCK8. A chemical screening approach
    revealed that quinine effectively prevented heme effects on the cytoskeleton,
    restored phagocytosis and improved survival in sepsis. These mechanistic insights
    provide potential therapeutic targets for patients with sepsis or hemolytic disorders.
acknowledgement: 'Y. Fukui (Medical Institute of Bioregulation, Kyushu University)
  and J. Stein (Theodor Kocher Institute, University of Bern) are acknowledged for
  providing the DOCK8 deficient bone marrow. and H. Häcker (St. Judes Children''s
  Research Hospital) for providing the ERHBD-HoxB8-encoding retroviral construct.
  pSpCas9(BB)-2a-Puro (PX459) was a gift from F. Zhang (Massachusetts Institute of
  Technology) (Addgene plasmid # 48139) and pGRG36 was a gift from N. Craig (Johns
  Hopkins University School of Medicine) (Addgene plasmid # 16666). LifeAct-GFP-encoding
  retrovirus was kindly provided by A. Leithner (Institute of Science and Technology
  Austria). pSIM8 and TKC E. coli were gifts from D.L. Court (Center for Cancer Research,
  National Cancer Institute). We acknowledge M. Gröger and S. Rauscher for excellent
  technical support (Core imaging facility, Medical University of Vienna). We thank
  D.P. Barlow and L.R. Cheever for critical reading of the manuscript. This work was
  supported by the Austrian Academy of Sciences, the Science Fund of the Austrian
  National Bank (14107) and the Austrian Science Fund FWF (I1620-B22) in the Infect-ERA
  framework (to S.Knapp).'
article_processing_charge: No
author:
- first_name: Rui
  full_name: Martins, Rui
  last_name: Martins
- first_name: Julia
  full_name: Maier, Julia
  last_name: Maier
- first_name: Anna
  full_name: Gorki, Anna
  last_name: Gorki
- first_name: Kilian
  full_name: Huber, Kilian
  last_name: Huber
- first_name: Omar
  full_name: Sharif, Omar
  last_name: Sharif
- first_name: Philipp
  full_name: Starkl, Philipp
  last_name: Starkl
- first_name: Simona
  full_name: Saluzzo, Simona
  last_name: Saluzzo
- first_name: Federica
  full_name: Quattrone, Federica
  last_name: Quattrone
- first_name: Riem
  full_name: Gawish, Riem
  last_name: Gawish
- first_name: Karin
  full_name: Lakovits, Karin
  last_name: Lakovits
- first_name: Michael
  full_name: Aichinger, Michael
  last_name: Aichinger
- first_name: Branka
  full_name: Radic Sarikas, Branka
  last_name: Radic Sarikas
- first_name: Charles
  full_name: Lardeau, Charles
  last_name: Lardeau
- first_name: Anastasiya
  full_name: Hladik, Anastasiya
  last_name: Hladik
- first_name: Ana
  full_name: Korosec, Ana
  last_name: Korosec
- first_name: Markus
  full_name: Brown, Markus
  id: 3DAB9AFC-F248-11E8-B48F-1D18A9856A87
  last_name: Brown
- first_name: Kari
  full_name: Vaahtomeri, Kari
  id: 368EE576-F248-11E8-B48F-1D18A9856A87
  last_name: Vaahtomeri
  orcid: 0000-0001-7829-3518
- first_name: Michelle
  full_name: Duggan, Michelle
  id: 2EDEA62C-F248-11E8-B48F-1D18A9856A87
  last_name: Duggan
- first_name: Dontscho
  full_name: Kerjaschki, Dontscho
  last_name: Kerjaschki
- first_name: Harald
  full_name: Esterbauer, Harald
  last_name: Esterbauer
- first_name: Jacques
  full_name: Colinge, Jacques
  last_name: Colinge
- first_name: Stephanie
  full_name: Eisenbarth, Stephanie
  last_name: Eisenbarth
- first_name: Thomas
  full_name: Decker, Thomas
  last_name: Decker
- first_name: Keiryn
  full_name: Bennett, Keiryn
  last_name: Bennett
- first_name: Stefan
  full_name: Kubicek, Stefan
  last_name: Kubicek
- first_name: Michael K
  full_name: Sixt, Michael K
  id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
  last_name: Sixt
  orcid: 0000-0002-6620-9179
- first_name: Giulio
  full_name: Superti Furga, Giulio
  last_name: Superti Furga
- first_name: Sylvia
  full_name: Knapp, Sylvia
  last_name: Knapp
citation:
  ama: Martins R, Maier J, Gorki A, et al. Heme drives hemolysis-induced susceptibility
    to infection via disruption of phagocyte functions. <i>Nature Immunology</i>.
    2016;17(12):1361-1372. doi:<a href="https://doi.org/10.1038/ni.3590">10.1038/ni.3590</a>
  apa: Martins, R., Maier, J., Gorki, A., Huber, K., Sharif, O., Starkl, P., … Knapp,
    S. (2016). Heme drives hemolysis-induced susceptibility to infection via disruption
    of phagocyte functions. <i>Nature Immunology</i>. Nature Publishing Group. <a
    href="https://doi.org/10.1038/ni.3590">https://doi.org/10.1038/ni.3590</a>
  chicago: Martins, Rui, Julia Maier, Anna Gorki, Kilian Huber, Omar Sharif, Philipp
    Starkl, Simona Saluzzo, et al. “Heme Drives Hemolysis-Induced Susceptibility to
    Infection via Disruption of Phagocyte Functions.” <i>Nature Immunology</i>. Nature
    Publishing Group, 2016. <a href="https://doi.org/10.1038/ni.3590">https://doi.org/10.1038/ni.3590</a>.
  ieee: R. Martins <i>et al.</i>, “Heme drives hemolysis-induced susceptibility to
    infection via disruption of phagocyte functions,” <i>Nature Immunology</i>, vol.
    17, no. 12. Nature Publishing Group, pp. 1361–1372, 2016.
  ista: Martins R, Maier J, Gorki A, Huber K, Sharif O, Starkl P, Saluzzo S, Quattrone
    F, Gawish R, Lakovits K, Aichinger M, Radic Sarikas B, Lardeau C, Hladik A, Korosec
    A, Brown M, Vaahtomeri K, Duggan M, Kerjaschki D, Esterbauer H, Colinge J, Eisenbarth
    S, Decker T, Bennett K, Kubicek S, Sixt MK, Superti Furga G, Knapp S. 2016. Heme
    drives hemolysis-induced susceptibility to infection via disruption of phagocyte
    functions. Nature Immunology. 17(12), 1361–1372.
  mla: Martins, Rui, et al. “Heme Drives Hemolysis-Induced Susceptibility to Infection
    via Disruption of Phagocyte Functions.” <i>Nature Immunology</i>, vol. 17, no.
    12, Nature Publishing Group, 2016, pp. 1361–72, doi:<a href="https://doi.org/10.1038/ni.3590">10.1038/ni.3590</a>.
  short: R. Martins, J. Maier, A. Gorki, K. Huber, O. Sharif, P. Starkl, S. Saluzzo,
    F. Quattrone, R. Gawish, K. Lakovits, M. Aichinger, B. Radic Sarikas, C. Lardeau,
    A. Hladik, A. Korosec, M. Brown, K. Vaahtomeri, M. Duggan, D. Kerjaschki, H. Esterbauer,
    J. Colinge, S. Eisenbarth, T. Decker, K. Bennett, S. Kubicek, M.K. Sixt, G. Superti
    Furga, S. Knapp, Nature Immunology 17 (2016) 1361–1372.
date_created: 2018-12-11T11:50:22Z
date_published: 2016-12-01T00:00:00Z
date_updated: 2025-09-22T14:10:50Z
day: '01'
department:
- _id: MiSi
- _id: PeJo
doi: 10.1038/ni.3590
external_id:
  isi:
  - '000388056400006'
intvolume: '        17'
isi: 1
issue: '12'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://ora.ox.ac.uk/objects/uuid:f53a464e-1e5b-4f08-a7d8-b6749b852b9d
month: '12'
oa: 1
oa_version: Submitted Version
page: 1361 - 1372
publication: Nature Immunology
publication_status: published
publisher: Nature Publishing Group
publist_id: '6216'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Heme drives hemolysis-induced susceptibility to infection via disruption of
  phagocyte functions
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 17
year: '2016'
...
---
_id: '12903'
article_processing_charge: No
author:
- first_name: Alois
  full_name: Schlögl, Alois
  id: 45BF87EE-F248-11E8-B48F-1D18A9856A87
  last_name: Schlögl
  orcid: 0000-0002-5621-8100
- first_name: Stephan
  full_name: Stadlbauer, Stephan
  id: 4D0BC184-F248-11E8-B48F-1D18A9856A87
  last_name: Stadlbauer
citation:
  ama: 'Schlögl A, Stadlbauer S. High performance computing at IST Austria: Modelling
    the human hippocampus. In: <i>AHPC16 - Austrian HPC Meeting 2016</i>. VSC - Vienna
    Scientific Cluster; 2016:37.'
  apa: 'Schlögl, A., &#38; Stadlbauer, S. (2016). High performance computing at IST
    Austria: Modelling the human hippocampus. In <i>AHPC16 - Austrian HPC Meeting
    2016</i> (p. 37). Grundlsee, Austria: VSC - Vienna Scientific Cluster.'
  chicago: 'Schlögl, Alois, and Stephan Stadlbauer. “High Performance Computing at
    IST Austria: Modelling the Human Hippocampus.” In <i>AHPC16 - Austrian HPC Meeting
    2016</i>, 37. VSC - Vienna Scientific Cluster, 2016.'
  ieee: 'A. Schlögl and S. Stadlbauer, “High performance computing at IST Austria:
    Modelling the human hippocampus,” in <i>AHPC16 - Austrian HPC Meeting 2016</i>,
    Grundlsee, Austria, 2016, p. 37.'
  ista: 'Schlögl A, Stadlbauer S. 2016. High performance computing at IST Austria:
    Modelling the human hippocampus. AHPC16 - Austrian HPC Meeting 2016. AHPC: Austrian
    HPC Meeting, 37.'
  mla: 'Schlögl, Alois, and Stephan Stadlbauer. “High Performance Computing at IST
    Austria: Modelling the Human Hippocampus.” <i>AHPC16 - Austrian HPC Meeting 2016</i>,
    VSC - Vienna Scientific Cluster, 2016, p. 37.'
  short: A. Schlögl, S. Stadlbauer, in:, AHPC16 - Austrian HPC Meeting 2016, VSC -
    Vienna Scientific Cluster, 2016, p. 37.
conference:
  end_date: 2016-02-24
  location: Grundlsee, Austria
  name: 'AHPC: Austrian HPC Meeting'
  start_date: 2016-02-22
corr_author: '1'
date_created: 2023-05-05T12:54:47Z
date_published: 2016-02-24T00:00:00Z
date_updated: 2024-10-09T21:05:23Z
day: '24'
ddc:
- '000'
department:
- _id: ScienComp
- _id: PeJo
file:
- access_level: open_access
  checksum: 4a7b00362e81358d568f5e216fa03c3e
  content_type: application/pdf
  creator: dernst
  date_created: 2023-05-16T07:03:56Z
  date_updated: 2023-05-16T07:03:56Z
  file_id: '12968'
  file_name: 2016_AHPC_Schloegl.pdf
  file_size: 1073523
  relation: main_file
  success: 1
file_date_updated: 2023-05-16T07:03:56Z
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://vsc.ac.at/fileadmin/user_upload/vsc/conferences/ahpc16/BOOKLET_AHPC16.pdf
month: '02'
oa: 1
oa_version: Published Version
page: '37'
publication: AHPC16 - Austrian HPC Meeting 2016
publication_status: published
publisher: VSC - Vienna Scientific Cluster
quality_controlled: '1'
status: public
title: 'High performance computing at IST Austria: Modelling the human hippocampus'
type: conference_abstract
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2016'
...
---
_id: '1323'
abstract:
- lang: eng
  text: Mossy fiber synapses on CA3 pyramidal cells are 'conditional detonators' that
    reliably discharge postsynaptic targets. The 'conditional' nature implies that
    burst activity in dentate gyrus granule cells is required for detonation. Whether
    single unitary excitatory postsynaptic potentials (EPSPs) trigger spikes in CA3
    neurons remains unknown. Mossy fiber synapses exhibit both pronounced short-term
    facilitation and uniquely large post-tetanic potentiation (PTP). We tested whether
    PTP could convert mossy fiber synapses from subdetonator into detonator mode,
    using a recently developed method to selectively and noninvasively stimulate individual
    presynaptic terminals in rat brain slices. Unitary EPSPs failed to initiate a
    spike in CA3 neurons under control conditions, but reliably discharged them after
    induction of presynaptic short-term plasticity. Remarkably, PTP switched mossy
    fiber synapses into full detonators for tens of seconds. Plasticity-dependent
    detonation may be critical for efficient coding, storage, and recall of information
    in the granule cell–CA3 cell network.
acknowledged_ssus:
- _id: M-Shop
- _id: PreCl
article_number: e17977
article_processing_charge: No
author:
- first_name: Nicholas
  full_name: Vyleta, Nicholas
  id: 36C4978E-F248-11E8-B48F-1D18A9856A87
  last_name: Vyleta
- first_name: Carolina
  full_name: Borges Merjane, Carolina
  id: 4305C450-F248-11E8-B48F-1D18A9856A87
  last_name: Borges Merjane
  orcid: 0000-0003-0005-401X
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: Vyleta N, Borges Merjane C, Jonas PM. Plasticity-dependent, full detonation
    at hippocampal mossy fiber–CA3 pyramidal neuron synapses. <i>eLife</i>. 2016;5.
    doi:<a href="https://doi.org/10.7554/eLife.17977">10.7554/eLife.17977</a>
  apa: Vyleta, N., Borges Merjane, C., &#38; Jonas, P. M. (2016). Plasticity-dependent,
    full detonation at hippocampal mossy fiber–CA3 pyramidal neuron synapses. <i>ELife</i>.
    eLife Sciences Publications. <a href="https://doi.org/10.7554/eLife.17977">https://doi.org/10.7554/eLife.17977</a>
  chicago: Vyleta, Nicholas, Carolina Borges Merjane, and Peter M Jonas. “Plasticity-Dependent,
    Full Detonation at Hippocampal Mossy Fiber–CA3 Pyramidal Neuron Synapses.” <i>ELife</i>.
    eLife Sciences Publications, 2016. <a href="https://doi.org/10.7554/eLife.17977">https://doi.org/10.7554/eLife.17977</a>.
  ieee: N. Vyleta, C. Borges Merjane, and P. M. Jonas, “Plasticity-dependent, full
    detonation at hippocampal mossy fiber–CA3 pyramidal neuron synapses,” <i>eLife</i>,
    vol. 5. eLife Sciences Publications, 2016.
  ista: Vyleta N, Borges Merjane C, Jonas PM. 2016. Plasticity-dependent, full detonation
    at hippocampal mossy fiber–CA3 pyramidal neuron synapses. eLife. 5, e17977.
  mla: Vyleta, Nicholas, et al. “Plasticity-Dependent, Full Detonation at Hippocampal
    Mossy Fiber–CA3 Pyramidal Neuron Synapses.” <i>ELife</i>, vol. 5, e17977, eLife
    Sciences Publications, 2016, doi:<a href="https://doi.org/10.7554/eLife.17977">10.7554/eLife.17977</a>.
  short: N. Vyleta, C. Borges Merjane, P.M. Jonas, ELife 5 (2016).
corr_author: '1'
date_created: 2018-12-11T11:51:22Z
date_published: 2016-10-25T00:00:00Z
date_updated: 2025-09-22T08:26:29Z
day: '25'
ddc:
- '571'
- '572'
department:
- _id: PeJo
doi: 10.7554/eLife.17977
ec_funded: 1
external_id:
  isi:
  - '000387034600001'
file:
- access_level: open_access
  checksum: a7201280c571bed88ebd459ce5ce6a47
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:17:05Z
  date_updated: 2020-07-14T12:44:44Z
  file_id: '5257'
  file_name: IST-2016-715-v1+1_e17977-download.pdf
  file_size: 1477891
  relation: main_file
file_date_updated: 2020-07-14T12:44:44Z
has_accepted_license: '1'
intvolume: '         5'
isi: 1
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
project:
- _id: 25C0F108-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '268548'
  name: Nanophysiology of fast-spiking, parvalbumin-expressing GABAergic interneurons
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '692692'
  name: Biophysics and circuit function of a giant cortical glutamatergic synapse
publication: eLife
publication_status: published
publisher: eLife Sciences Publications
publist_id: '5947'
pubrep_id: '715'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Plasticity-dependent, full detonation at hippocampal mossy fiber–CA3 pyramidal
  neuron synapses
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 5
year: '2016'
...
---
_id: '1350'
abstract:
- lang: eng
  text: "The hippocampal CA3 region plays a key role in learning and memory. Recurrent
    CA3–CA3\r\nsynapses are thought to be the subcellular substrate of pattern completion.
    However, the\r\nsynaptic mechanisms of this network computation remain enigmatic.
    To investigate these mechanisms, we combined functional connectivity analysis
    with network modeling.\r\nSimultaneous recording fromup to eight CA3 pyramidal
    neurons revealed that connectivity was sparse, spatially uniform, and highly enriched
    in disynaptic motifs (reciprocal, convergence,divergence, and chain motifs). Unitary
    connections were composed of one or two synaptic contacts, suggesting efficient
    use of postsynaptic space. Real-size modeling indicated that CA3 networks with
    sparse connectivity, disynaptic motifs, and single-contact connections robustly
    generated pattern completion.Thus, macro- and microconnectivity contribute to
    efficient\r\nmemory storage and retrieval in hippocampal networks."
acknowledged_ssus:
- _id: ScienComp
article_processing_charge: No
author:
- first_name: José
  full_name: Guzmán, José
  id: 30CC5506-F248-11E8-B48F-1D18A9856A87
  last_name: Guzmán
  orcid: 0000-0003-2209-5242
- first_name: Alois
  full_name: Schlögl, Alois
  id: 45BF87EE-F248-11E8-B48F-1D18A9856A87
  last_name: Schlögl
  orcid: 0000-0002-5621-8100
- first_name: Michael
  full_name: Frotscher, Michael
  last_name: Frotscher
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: Guzmán J, Schlögl A, Frotscher M, Jonas PM. Synaptic mechanisms of pattern
    completion in the hippocampal CA3 network. <i>Science</i>. 2016;353(6304):1117-1123.
    doi:<a href="https://doi.org/10.1126/science.aaf1836">10.1126/science.aaf1836</a>
  apa: Guzmán, J., Schlögl, A., Frotscher, M., &#38; Jonas, P. M. (2016). Synaptic
    mechanisms of pattern completion in the hippocampal CA3 network. <i>Science</i>.
    American Association for the Advancement of Science. <a href="https://doi.org/10.1126/science.aaf1836">https://doi.org/10.1126/science.aaf1836</a>
  chicago: Guzmán, José, Alois Schlögl, Michael Frotscher, and Peter M Jonas. “Synaptic
    Mechanisms of Pattern Completion in the Hippocampal CA3 Network.” <i>Science</i>.
    American Association for the Advancement of Science, 2016. <a href="https://doi.org/10.1126/science.aaf1836">https://doi.org/10.1126/science.aaf1836</a>.
  ieee: J. Guzmán, A. Schlögl, M. Frotscher, and P. M. Jonas, “Synaptic mechanisms
    of pattern completion in the hippocampal CA3 network,” <i>Science</i>, vol. 353,
    no. 6304. American Association for the Advancement of Science, pp. 1117–1123,
    2016.
  ista: Guzmán J, Schlögl A, Frotscher M, Jonas PM. 2016. Synaptic mechanisms of pattern
    completion in the hippocampal CA3 network. Science. 353(6304), 1117–1123.
  mla: Guzmán, José, et al. “Synaptic Mechanisms of Pattern Completion in the Hippocampal
    CA3 Network.” <i>Science</i>, vol. 353, no. 6304, American Association for the
    Advancement of Science, 2016, pp. 1117–23, doi:<a href="https://doi.org/10.1126/science.aaf1836">10.1126/science.aaf1836</a>.
  short: J. Guzmán, A. Schlögl, M. Frotscher, P.M. Jonas, Science 353 (2016) 1117–1123.
corr_author: '1'
date_created: 2018-12-11T11:51:31Z
date_published: 2016-09-09T00:00:00Z
date_updated: 2025-09-22T08:12:10Z
day: '09'
ddc:
- '570'
department:
- _id: ScienComp
- _id: PeJo
doi: 10.1126/science.aaf1836
ec_funded: 1
external_id:
  isi:
  - '000382626800045'
file:
- access_level: open_access
  checksum: 89caefa4e181424cbf0aecc835fcc5ec
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:12:27Z
  date_updated: 2020-07-14T12:44:46Z
  file_id: '4945'
  file_name: IST-2017-823-v1+1_aaf1836_CombinedPDF_v2-1.pdf
  file_size: 19408143
  relation: main_file
file_date_updated: 2020-07-14T12:44:46Z
has_accepted_license: '1'
intvolume: '       353'
isi: 1
issue: '6304'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Preprint
page: 1117 - 1123
project:
- _id: 25C0F108-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '268548'
  name: Nanophysiology of fast-spiking, parvalbumin-expressing GABAergic interneurons
- _id: 25C26B1E-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P24909-B24
  name: Mechanisms of transmitter release at GABAergic synapses
publication: Science
publication_status: published
publisher: American Association for the Advancement of Science
publist_id: '5899'
pubrep_id: '823'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Synaptic mechanisms of pattern completion in the hippocampal CA3 network
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 353
year: '2016'
...
---
_id: '1435'
abstract:
- lang: eng
  text: ATP released from neurons and astrocytes during neuronal activity or under
    pathophysiological circumstances is able to influence information flow in neuronal
    circuits by activation of ionotropic P2X and metabotropic P2Y receptors and subsequent
    modulation of cellular excitability, synaptic strength, and plasticity. In the
    present paper we review cellular and network effects of P2Y receptors in the brain.
    We show that P2Y receptors inhibit the release of neurotransmitters, modulate
    voltage- and ligand-gated ion channels, and differentially influence the induction
    of synaptic plasticity in the prefrontal cortex, hippocampus, and cerebellum.
    The findings discussed here may explain how P2Y1 receptor activation during brain
    injury, hypoxia, inflammation, schizophrenia, or Alzheimer's disease leads to
    an impairment of cognitive processes. Hence, it is suggested that the blockade
    of P2Y1 receptors may have therapeutic potential against cognitive disturbances
    in these states.
article_number: '1207393'
article_processing_charge: No
author:
- first_name: José
  full_name: Guzmán, José
  id: 30CC5506-F248-11E8-B48F-1D18A9856A87
  last_name: Guzmán
  orcid: 0000-0003-2209-5242
- first_name: Zoltan
  full_name: Gerevich, Zoltan
  last_name: Gerevich
citation:
  ama: 'Guzmán J, Gerevich Z. P2Y receptors in synaptic transmission and plasticity:
    Therapeutic potential in cognitive dysfunction. <i>Neural Plasticity</i>. 2016;2016.
    doi:<a href="https://doi.org/10.1155/2016/1207393">10.1155/2016/1207393</a>'
  apa: 'Guzmán, J., &#38; Gerevich, Z. (2016). P2Y receptors in synaptic transmission
    and plasticity: Therapeutic potential in cognitive dysfunction. <i>Neural Plasticity</i>.
    Hindawi Publishing Corporation. <a href="https://doi.org/10.1155/2016/1207393">https://doi.org/10.1155/2016/1207393</a>'
  chicago: 'Guzmán, José, and Zoltan Gerevich. “P2Y Receptors in Synaptic Transmission
    and Plasticity: Therapeutic Potential in Cognitive Dysfunction.” <i>Neural Plasticity</i>.
    Hindawi Publishing Corporation, 2016. <a href="https://doi.org/10.1155/2016/1207393">https://doi.org/10.1155/2016/1207393</a>.'
  ieee: 'J. Guzmán and Z. Gerevich, “P2Y receptors in synaptic transmission and plasticity:
    Therapeutic potential in cognitive dysfunction,” <i>Neural Plasticity</i>, vol.
    2016. Hindawi Publishing Corporation, 2016.'
  ista: 'Guzmán J, Gerevich Z. 2016. P2Y receptors in synaptic transmission and plasticity:
    Therapeutic potential in cognitive dysfunction. Neural Plasticity. 2016, 1207393.'
  mla: 'Guzmán, José, and Zoltan Gerevich. “P2Y Receptors in Synaptic Transmission
    and Plasticity: Therapeutic Potential in Cognitive Dysfunction.” <i>Neural Plasticity</i>,
    vol. 2016, 1207393, Hindawi Publishing Corporation, 2016, doi:<a href="https://doi.org/10.1155/2016/1207393">10.1155/2016/1207393</a>.'
  short: J. Guzmán, Z. Gerevich, Neural Plasticity 2016 (2016).
date_created: 2018-12-11T11:52:00Z
date_published: 2016-01-01T00:00:00Z
date_updated: 2025-09-18T11:45:18Z
day: '01'
ddc:
- '570'
department:
- _id: PeJo
doi: 10.1155/2016/1207393
external_id:
  isi:
  - '000374056200001'
file:
- access_level: open_access
  checksum: 8dc5c2f3d44d4775a6e7e3edb0d7a0da
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:09:17Z
  date_updated: 2020-07-14T12:44:54Z
  file_id: '4740'
  file_name: IST-2016-580-v1+1_1207393.pdf
  file_size: 1395180
  relation: main_file
file_date_updated: 2020-07-14T12:44:54Z
has_accepted_license: '1'
intvolume: '      2016'
isi: 1
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
publication: Neural Plasticity
publication_status: published
publisher: Hindawi Publishing Corporation
publist_id: '5762'
pubrep_id: '580'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'P2Y receptors in synaptic transmission and plasticity: Therapeutic potential
  in cognitive dysfunction'
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 2016
year: '2016'
...
---
_id: '1616'
abstract:
- lang: eng
  text: The hippocampus plays a key role in learning and memory. Previous studies
    suggested that the main types of principal neurons, dentate gyrus granule cells
    (GCs), CA3 pyramidal neurons, and CA1 pyramidal neurons, differ in their activity
    pattern, with sparse firing in GCs and more frequent firing in CA3 and CA1 pyramidal
    neurons. It has been assumed but never shown that such different activity may
    be caused by differential synaptic excitation. To test this hypothesis, we performed
    high-resolution whole-cell patch-clamp recordings in anesthetized rats in vivo.
    In contrast to previous in vitro data, both CA3 and CA1 pyramidal neurons fired
    action potentials spontaneously, with a frequency of ∼3–6 Hz, whereas GCs were
    silent. Furthermore, both CA3 and CA1 cells primarily fired in bursts. To determine
    the underlying mechanisms, we quantitatively assessed the frequency of spontaneous
    excitatory synaptic input, the passive membrane properties, and the active membrane
    characteristics. Surprisingly, GCs showed comparable synaptic excitation to CA3
    and CA1 cells and the highest ratio of excitation versus hyperpolarizing inhibition.
    Thus, differential synaptic excitation is not responsible for differences in firing.
    Moreover, the three types of hippocampal neurons markedly differed in their passive
    properties. While GCs showed the most negative membrane potential, CA3 pyramidal
    neurons had the highest input resistance and the slowest membrane time constant.
    The three types of neurons also differed in the active membrane characteristics.
    GCs showed the highest action potential threshold, but displayed the largest gain
    of the input-output curves. In conclusion, our results reveal that differential
    firing of the three main types of hippocampal principal neurons in vivo is not
    primarily caused by differences in the characteristics of the synaptic input,
    but by the distinct properties of synaptic integration and input-output transformation.
acknowledgement: "The authors thank Jose Guzman for critically reading prior versions
  of the manuscript. They also thank T. Asenov for\r\nengineering mechanical devices,
  A. Schlögl for efﬁcient pro-gramming, F. Marr for technical assistance, and E. Kramberger
  for manuscript editing."
article_processing_charge: No
author:
- first_name: Janina
  full_name: Kowalski, Janina
  id: 3F3CA136-F248-11E8-B48F-1D18A9856A87
  last_name: Kowalski
- first_name: Jian
  full_name: Gan, Jian
  id: 3614E438-F248-11E8-B48F-1D18A9856A87
  last_name: Gan
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
- first_name: Alejandro
  full_name: Pernia-Andrade, Alejandro
  id: 36963E98-F248-11E8-B48F-1D18A9856A87
  last_name: Pernia-Andrade
citation:
  ama: Kowalski J, Gan J, Jonas PM, Pernia-Andrade A. Intrinsic membrane properties
    determine hippocampal differential firing pattern in vivo in anesthetized rats.
    <i>Hippocampus</i>. 2016;26(5):668-682. doi:<a href="https://doi.org/10.1002/hipo.22550">10.1002/hipo.22550</a>
  apa: Kowalski, J., Gan, J., Jonas, P. M., &#38; Pernia-Andrade, A. (2016). Intrinsic
    membrane properties determine hippocampal differential firing pattern in vivo
    in anesthetized rats. <i>Hippocampus</i>. Wiley. <a href="https://doi.org/10.1002/hipo.22550">https://doi.org/10.1002/hipo.22550</a>
  chicago: Kowalski, Janina, Jian Gan, Peter M Jonas, and Alejandro Pernia-Andrade.
    “Intrinsic Membrane Properties Determine Hippocampal Differential Firing Pattern
    in Vivo in Anesthetized Rats.” <i>Hippocampus</i>. Wiley, 2016. <a href="https://doi.org/10.1002/hipo.22550">https://doi.org/10.1002/hipo.22550</a>.
  ieee: J. Kowalski, J. Gan, P. M. Jonas, and A. Pernia-Andrade, “Intrinsic membrane
    properties determine hippocampal differential firing pattern in vivo in anesthetized
    rats,” <i>Hippocampus</i>, vol. 26, no. 5. Wiley, pp. 668–682, 2016.
  ista: Kowalski J, Gan J, Jonas PM, Pernia-Andrade A. 2016. Intrinsic membrane properties
    determine hippocampal differential firing pattern in vivo in anesthetized rats.
    Hippocampus. 26(5), 668–682.
  mla: Kowalski, Janina, et al. “Intrinsic Membrane Properties Determine Hippocampal
    Differential Firing Pattern in Vivo in Anesthetized Rats.” <i>Hippocampus</i>,
    vol. 26, no. 5, Wiley, 2016, pp. 668–82, doi:<a href="https://doi.org/10.1002/hipo.22550">10.1002/hipo.22550</a>.
  short: J. Kowalski, J. Gan, P.M. Jonas, A. Pernia-Andrade, Hippocampus 26 (2016)
    668–682.
corr_author: '1'
date_created: 2018-12-11T11:53:03Z
date_published: 2016-05-01T00:00:00Z
date_updated: 2025-09-18T10:58:31Z
day: '01'
ddc:
- '570'
department:
- _id: PeJo
doi: 10.1002/hipo.22550
external_id:
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  - '000374666700011'
file:
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  checksum: 284b72b12fbe15474833ed3d4549f86b
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  creator: system
  date_created: 2018-12-12T10:13:47Z
  date_updated: 2020-07-14T12:45:07Z
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  file_size: 905348
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file_date_updated: 2020-07-14T12:45:07Z
has_accepted_license: '1'
intvolume: '        26'
isi: 1
issue: '5'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/4.0/
month: '05'
oa: 1
oa_version: Published Version
page: 668 - 682
publication: Hippocampus
publication_identifier:
  eissn:
  - 1098-1063
  issn:
  - 1050-9631
publication_status: published
publisher: Wiley
publist_id: '5550'
pubrep_id: '469'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Intrinsic membrane properties determine hippocampal differential firing pattern
  in vivo in anesthetized rats
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 26
year: '2016'
...
---
_id: '1432'
abstract:
- lang: eng
  text: CA3–CA3 recurrent excitatory synapses are thought to play a key role in memory
    storage and pattern completion. Whether the plasticity properties of these synapses
    are consistent with their proposed network functions remains unclear. Here, we
    examine the properties of spike timing-dependent plasticity (STDP) at CA3–CA3
    synapses. Low-frequency pairing of excitatory postsynaptic potentials (EPSPs)
    and action potentials (APs) induces long-term potentiation (LTP), independent
    of temporal order. The STDP curve is symmetric and broad (half-width ~150 ms).
    Consistent with these STDP induction properties, AP–EPSP sequences lead to supralinear
    summation of spine [Ca2+] transients. Furthermore, afterdepolarizations (ADPs)
    following APs efficiently propagate into dendrites of CA3 pyramidal neurons, and
    EPSPs summate with dendritic ADPs. In autoassociative network models, storage
    and recall are more robust with symmetric than with asymmetric STDP rules. Thus,
    a specialized STDP induction rule allows reliable storage and recall of information
    in the hippocampal CA3 network.
acknowledgement: 'We thank Jozsef Csicsvari and Nelson Spruston for critically reading
  the manuscript. We also thank A. Schlögl for programming, F. Marr for technical
  assistance and E. Kramberger for manuscript editing. '
article_number: '11552'
article_processing_charge: No
author:
- first_name: Rajiv Kumar
  full_name: Mishra, Rajiv Kumar
  id: 46CB58F2-F248-11E8-B48F-1D18A9856A87
  last_name: Mishra
- first_name: Sooyun
  full_name: Kim, Sooyun
  id: 394AB1C8-F248-11E8-B48F-1D18A9856A87
  last_name: Kim
- first_name: José
  full_name: Guzmán, José
  id: 30CC5506-F248-11E8-B48F-1D18A9856A87
  last_name: Guzmán
  orcid: 0000-0003-2209-5242
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: Mishra RK, Kim S, Guzmán J, Jonas PM. Symmetric spike timing-dependent plasticity
    at CA3–CA3 synapses optimizes storage and recall in autoassociative networks.
    <i>Nature Communications</i>. 2016;7. doi:<a href="https://doi.org/10.1038/ncomms11552">10.1038/ncomms11552</a>
  apa: Mishra, R. K., Kim, S., Guzmán, J., &#38; Jonas, P. M. (2016). Symmetric spike
    timing-dependent plasticity at CA3–CA3 synapses optimizes storage and recall in
    autoassociative networks. <i>Nature Communications</i>. Nature Publishing Group.
    <a href="https://doi.org/10.1038/ncomms11552">https://doi.org/10.1038/ncomms11552</a>
  chicago: Mishra, Rajiv Kumar, Sooyun Kim, José Guzmán, and Peter M Jonas. “Symmetric
    Spike Timing-Dependent Plasticity at CA3–CA3 Synapses Optimizes Storage and Recall
    in Autoassociative Networks.” <i>Nature Communications</i>. Nature Publishing
    Group, 2016. <a href="https://doi.org/10.1038/ncomms11552">https://doi.org/10.1038/ncomms11552</a>.
  ieee: R. K. Mishra, S. Kim, J. Guzmán, and P. M. Jonas, “Symmetric spike timing-dependent
    plasticity at CA3–CA3 synapses optimizes storage and recall in autoassociative
    networks,” <i>Nature Communications</i>, vol. 7. Nature Publishing Group, 2016.
  ista: Mishra RK, Kim S, Guzmán J, Jonas PM. 2016. Symmetric spike timing-dependent
    plasticity at CA3–CA3 synapses optimizes storage and recall in autoassociative
    networks. Nature Communications. 7, 11552.
  mla: Mishra, Rajiv Kumar, et al. “Symmetric Spike Timing-Dependent Plasticity at
    CA3–CA3 Synapses Optimizes Storage and Recall in Autoassociative Networks.” <i>Nature
    Communications</i>, vol. 7, 11552, Nature Publishing Group, 2016, doi:<a href="https://doi.org/10.1038/ncomms11552">10.1038/ncomms11552</a>.
  short: R.K. Mishra, S. Kim, J. Guzmán, P.M. Jonas, Nature Communications 7 (2016).
corr_author: '1'
date_created: 2018-12-11T11:51:59Z
date_published: 2016-05-13T00:00:00Z
date_updated: 2026-07-29T11:31:52Z
day: '13'
ddc:
- '570'
department:
- _id: PeJo
doi: 10.1038/ncomms11552
ec_funded: 1
external_id:
  isi:
  - '000375938200001'
file:
- access_level: open_access
  checksum: 7e84d0392348c874d473b62f1042de22
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:18:33Z
  date_updated: 2020-07-14T12:44:53Z
  file_id: '5355'
  file_name: IST-2016-582-v1+1_ncomms11552.pdf
  file_size: 4510512
  relation: main_file
file_date_updated: 2020-07-14T12:44:53Z
has_accepted_license: '1'
intvolume: '         7'
isi: 1
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
project:
- _id: 25C26B1E-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P24909-B24
  name: Mechanisms of transmitter release at GABAergic synapses
- _id: 25C0F108-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '268548'
  name: Nanophysiology of fast-spiking, parvalbumin-expressing GABAergic interneurons
publication: Nature Communications
publication_status: published
publisher: Nature Publishing Group
publist_id: '5766'
pubrep_id: '582'
quality_controlled: '1'
related_material:
  record:
  - id: '1396'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Symmetric spike timing-dependent plasticity at CA3–CA3 synapses optimizes storage
  and recall in autoassociative networks
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 7
year: '2016'
...
---
OA_place: publisher
_id: '1396'
abstract:
- lang: eng
  text: CA3 pyramidal neurons are thought to pay a key role in memory storage and
    pattern completion by activity-dependent synaptic plasticity between CA3-CA3 recurrent
    excitatory synapses. To examine the induction rules of synaptic plasticity at
    CA3-CA3 synapses, we performed whole-cell patch-clamp recordings in acute hippocampal
    slices from rats (postnatal 21-24 days) at room temperature. Compound excitatory
    postsynaptic potentials (ESPSs) were recorded by tract stimulation in stratum
    oriens in the presence of 10 µM gabazine. High-frequency stimulation (HFS) induced
    N-methyl-D-aspartate (NMDA) receptor-dependent long-term potentiation (LTP). Although
    LTP by HFS did not requier postsynaptic spikes, it was blocked by Na+-channel
    blockers suggesting that local active processes (e.g.) dendritic spikes) may contribute
    to LTP induction without requirement of a somatic action potential (AP). We next
    examined the properties of spike timing-dependent plasticity (STDP) at CA3-CA3
    synapses. Unexpectedly, low-frequency pairing of EPSPs and backpropagated action
    potentialy (bAPs) induced LTP, independent of temporal order. The STDP curve was
    symmetric and broad, with a half-width of ~150 ms. Consistent with these specific
    STDP induction properties, post-presynaptic sequences led to a supralinear summation
    of spine [Ca2+] transients. Furthermore, in autoassociative network models, storage
    and recall was substantially more robust with symmetric than with asymmetric STDP
    rules. In conclusion, we found associative forms of LTP at CA3-CA3 recurrent collateral
    synapses with distinct induction rules. LTP induced by HFS may be associated with
    dendritic spikes. In contrast, low frequency pairing of pre- and postsynaptic
    activity induced LTP only if EPSP-AP were temporally very close. Together, these
    induction mechanisms of synaptiic plasticity may contribute to memory storage
    in the CA3-CA3 microcircuit at different ranges of activity.
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Rajiv Kumar
  full_name: Mishra, Rajiv Kumar
  id: 46CB58F2-F248-11E8-B48F-1D18A9856A87
  last_name: Mishra
citation:
  ama: Mishra RK. Synaptic plasticity rules at CA3-CA3 recurrent synapses in hippocampus.
    2016.
  apa: Mishra, R. K. (2016). <i>Synaptic plasticity rules at CA3-CA3 recurrent synapses
    in hippocampus</i>. Institute of Science and Technology Austria.
  chicago: Mishra, Rajiv Kumar. “Synaptic Plasticity Rules at CA3-CA3 Recurrent Synapses
    in Hippocampus.” Institute of Science and Technology Austria, 2016.
  ieee: R. K. Mishra, “Synaptic plasticity rules at CA3-CA3 recurrent synapses in
    hippocampus,” Institute of Science and Technology Austria, 2016.
  ista: Mishra RK. 2016. Synaptic plasticity rules at CA3-CA3 recurrent synapses in
    hippocampus. Institute of Science and Technology Austria.
  mla: Mishra, Rajiv Kumar. <i>Synaptic Plasticity Rules at CA3-CA3 Recurrent Synapses
    in Hippocampus</i>. Institute of Science and Technology Austria, 2016.
  short: R.K. Mishra, Synaptic Plasticity Rules at CA3-CA3 Recurrent Synapses in Hippocampus,
    Institute of Science and Technology Austria, 2016.
corr_author: '1'
date_created: 2018-12-11T11:51:46Z
date_published: 2016-03-01T00:00:00Z
date_updated: 2026-07-29T11:31:52Z
day: '01'
ddc:
- '570'
degree_awarded: PhD
department:
- _id: PeJo
- _id: GradSch
doi_confirm: '1'
file:
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  checksum: 5a010a838faf040f7064f3cfb802f743
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  file_id: '6782'
  file_name: Thesis_Mishra_Rajiv (Final).pdf
  file_size: 2407572
  relation: main_file
- access_level: open_access
  checksum: 81b26d9ede92c99f1d8cc6fa1d04cbbb
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  date_created: 2021-02-22T11:48:44Z
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file_date_updated: 2021-02-22T11:48:44Z
has_accepted_license: '1'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
page: '83'
publication_identifier:
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
publist_id: '5811'
related_material:
  record:
  - id: '1432'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
title: Synaptic plasticity rules at CA3-CA3 recurrent synapses in hippocampus
type: dissertation
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2016'
...
---
_id: '1535'
abstract:
- lang: eng
  text: Neuronal and neuroendocrine L-type calcium channels (Cav1.2, Cav1.3) open
    readily at relatively low membrane potentials and allow Ca2+ to enter the cells
    near resting potentials. In this way, Cav1.2 and Cav1.3 shape the action potential
    waveform, contribute to gene expression, synaptic plasticity, neuronal differentiation,
    hormone secretion and pacemaker activity. In the chromaffin cells (CCs) of the
    adrenal medulla, Cav1.3 is highly expressed and is shown to support most of the
    pacemaking current that sustains action potential (AP) firings and part of the
    catecholamine secretion. Cav1.3 forms Ca2+-nanodomains with the fast inactivating
    BK channels and drives the resting SK currents. These latter set the inter-spike
    interval duration between consecutive spikes during spontaneous firing and the
    rate of spike adaptation during sustained depolarizations. Cav1.3 plays also a
    primary role in the switch from “tonic” to “burst” firing that occurs in mouse
    CCs when either the availability of voltage-gated Na channels (Nav) is reduced
    or the β2 subunit featuring the fast inactivating BK channels is deleted. Here,
    we discuss the functional role of these “neuronlike” firing modes in CCs and how
    Cav1.3 contributes to them. The open issue is to understand how these novel firing
    patterns are adapted to regulate the quantity of circulating catecholamines during
    resting condition or in response to acute and chronic stress.
acknowledgement: This work was supported by the Italian MIUR (PRIN 2010/2011 project
  2010JFYFY2) and the University of Torino.
article_processing_charge: No
article_type: original
author:
- first_name: David H
  full_name: Vandael, David H
  id: 3AE48E0A-F248-11E8-B48F-1D18A9856A87
  last_name: Vandael
  orcid: 0000-0001-7577-1676
- first_name: Andrea
  full_name: Marcantoni, Andrea
  last_name: Marcantoni
- first_name: Emilio
  full_name: Carbone, Emilio
  last_name: Carbone
citation:
  ama: Vandael DH, Marcantoni A, Carbone E. Cav1.3 channels as key regulators of neuron-like
    firings and catecholamine release in chromaffin cells. <i>Current Molecular Pharmacology</i>.
    2015;8(2):149-161. doi:<a href="https://doi.org/10.2174/1874467208666150507105443">10.2174/1874467208666150507105443</a>
  apa: Vandael, D. H., Marcantoni, A., &#38; Carbone, E. (2015). Cav1.3 channels as
    key regulators of neuron-like firings and catecholamine release in chromaffin
    cells. <i>Current Molecular Pharmacology</i>. Bentham Science Publishers. <a href="https://doi.org/10.2174/1874467208666150507105443">https://doi.org/10.2174/1874467208666150507105443</a>
  chicago: Vandael, David H, Andrea Marcantoni, and Emilio Carbone. “Cav1.3 Channels
    as Key Regulators of Neuron-like Firings and Catecholamine Release in Chromaffin
    Cells.” <i>Current Molecular Pharmacology</i>. Bentham Science Publishers, 2015.
    <a href="https://doi.org/10.2174/1874467208666150507105443">https://doi.org/10.2174/1874467208666150507105443</a>.
  ieee: D. H. Vandael, A. Marcantoni, and E. Carbone, “Cav1.3 channels as key regulators
    of neuron-like firings and catecholamine release in chromaffin cells,” <i>Current
    Molecular Pharmacology</i>, vol. 8, no. 2. Bentham Science Publishers, pp. 149–161,
    2015.
  ista: Vandael DH, Marcantoni A, Carbone E. 2015. Cav1.3 channels as key regulators
    of neuron-like firings and catecholamine release in chromaffin cells. Current
    Molecular Pharmacology. 8(2), 149–161.
  mla: Vandael, David H., et al. “Cav1.3 Channels as Key Regulators of Neuron-like
    Firings and Catecholamine Release in Chromaffin Cells.” <i>Current Molecular Pharmacology</i>,
    vol. 8, no. 2, Bentham Science Publishers, 2015, pp. 149–61, doi:<a href="https://doi.org/10.2174/1874467208666150507105443">10.2174/1874467208666150507105443</a>.
  short: D.H. Vandael, A. Marcantoni, E. Carbone, Current Molecular Pharmacology 8
    (2015) 149–161.
date_created: 2018-12-11T11:52:35Z
date_published: 2015-10-01T00:00:00Z
date_updated: 2025-09-23T08:12:18Z
day: '01'
department:
- _id: PeJo
doi: 10.2174/1874467208666150507105443
external_id:
  isi:
  - '000217186100005'
  pmid:
  - '25966692'
intvolume: '         8'
isi: 1
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5384372/
month: '10'
oa: 1
oa_version: Submitted Version
page: 149 - 161
pmid: 1
publication: Current Molecular Pharmacology
publication_status: published
publisher: Bentham Science Publishers
publist_id: '5636'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Cav1.3 channels as key regulators of neuron-like firings and catecholamine
  release in chromaffin cells
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 8
year: '2015'
...
---
_id: '1565'
abstract:
- lang: eng
  text: Leptin is an adipokine produced by the adipose tissue regulating body weight
    through its appetite-suppressing effect. Besides being expressed in the hypothalamus
    and hippocampus, leptin receptors (ObRs) are also present in chromaffin cells
    of the adrenal medulla. In the present study, we report the effect of leptin on
    mouse chromaffin cell (MCC) functionality, focusing on cell excitability and catecholamine
    secretion. Acute application of leptin (1 nm) on spontaneously firing MCCs caused
    a slowly developing membrane hyperpolarization followed by complete blockade of
    action potential (AP) firing. This inhibitory effect at rest was abolished by
    the BK channel blocker paxilline (1 μm), suggesting the involvement of BK potassium
    channels. Single-channel recordings in 'perforated microvesicles' confirmed that
    leptin increased BK channel open probability without altering its unitary conductance.
    BK channel up-regulation was associated with the phosphoinositide 3-kinase (PI3K)
    signalling cascade because the PI3K specific inhibitor wortmannin (100 nm) fully
    prevented BK current increase. We also tested the effect of leptin on evoked AP
    firing and Ca2+-driven exocytosis. Although leptin preserves well-adapted AP trains
    of lower frequency, APs are broader and depolarization-evoked exocytosis is increased
    as a result of the larger size of the ready-releasable pool and higher frequency
    of vesicle release. The kinetics and quantal size of single secretory events remained
    unaltered. Leptin had no effect on firing and secretion in db-/db- mice lacking
    the ObR gene, confirming its specificity. In conclusion, leptin exhibits a dual
    action on MCC activity. It dampens AP firing at rest but preserves AP firing and
    increases catecholamine secretion during sustained stimulation, highlighting the
    importance of the adipo-adrenal axis in the leptin-mediated increase of sympathetic
    tone and catecholamine release.
acknowledgement: "This work was supported by the Compagnia di San Paolo Foundation
  ‘Neuroscience Program’ to VC and ‘Progetto di Ateneo 2011-13’ to EC.\r\nWe thank
  Dr Claudio Franchino for cell preparation and for providing excellent technical
  support."
article_processing_charge: No
author:
- first_name: Daniela
  full_name: Gavello, Daniela
  last_name: Gavello
- first_name: David H
  full_name: Vandael, David H
  id: 3AE48E0A-F248-11E8-B48F-1D18A9856A87
  last_name: Vandael
  orcid: 0000-0001-7577-1676
- first_name: Sara
  full_name: Gosso, Sara
  last_name: Gosso
- first_name: Emilio
  full_name: Carbone, Emilio
  last_name: Carbone
- first_name: Valentina
  full_name: Carabelli, Valentina
  last_name: Carabelli
citation:
  ama: Gavello D, Vandael DH, Gosso S, Carbone E, Carabelli V. Dual action of leptin
    on rest-firing and stimulated catecholamine release via phosphoinositide 3-kinase-riven
    BK channel up-regulation in mouse chromaffin cells. <i>Journal of Physiology</i>.
    2015;593(22):4835-4853. doi:<a href="https://doi.org/10.1113/JP271078">10.1113/JP271078</a>
  apa: Gavello, D., Vandael, D. H., Gosso, S., Carbone, E., &#38; Carabelli, V. (2015).
    Dual action of leptin on rest-firing and stimulated catecholamine release via
    phosphoinositide 3-kinase-riven BK channel up-regulation in mouse chromaffin cells.
    <i>Journal of Physiology</i>. Wiley-Blackwell. <a href="https://doi.org/10.1113/JP271078">https://doi.org/10.1113/JP271078</a>
  chicago: Gavello, Daniela, David H Vandael, Sara Gosso, Emilio Carbone, and Valentina
    Carabelli. “Dual Action of Leptin on Rest-Firing and Stimulated Catecholamine
    Release via Phosphoinositide 3-Kinase-Riven BK Channel up-Regulation in Mouse
    Chromaffin Cells.” <i>Journal of Physiology</i>. Wiley-Blackwell, 2015. <a href="https://doi.org/10.1113/JP271078">https://doi.org/10.1113/JP271078</a>.
  ieee: D. Gavello, D. H. Vandael, S. Gosso, E. Carbone, and V. Carabelli, “Dual action
    of leptin on rest-firing and stimulated catecholamine release via phosphoinositide
    3-kinase-riven BK channel up-regulation in mouse chromaffin cells,” <i>Journal
    of Physiology</i>, vol. 593, no. 22. Wiley-Blackwell, pp. 4835–4853, 2015.
  ista: Gavello D, Vandael DH, Gosso S, Carbone E, Carabelli V. 2015. Dual action
    of leptin on rest-firing and stimulated catecholamine release via phosphoinositide
    3-kinase-riven BK channel up-regulation in mouse chromaffin cells. Journal of
    Physiology. 593(22), 4835–4853.
  mla: Gavello, Daniela, et al. “Dual Action of Leptin on Rest-Firing and Stimulated
    Catecholamine Release via Phosphoinositide 3-Kinase-Riven BK Channel up-Regulation
    in Mouse Chromaffin Cells.” <i>Journal of Physiology</i>, vol. 593, no. 22, Wiley-Blackwell,
    2015, pp. 4835–53, doi:<a href="https://doi.org/10.1113/JP271078">10.1113/JP271078</a>.
  short: D. Gavello, D.H. Vandael, S. Gosso, E. Carbone, V. Carabelli, Journal of
    Physiology 593 (2015) 4835–4853.
date_created: 2018-12-11T11:52:45Z
date_published: 2015-11-15T00:00:00Z
date_updated: 2025-09-23T08:30:00Z
day: '15'
department:
- _id: PeJo
doi: 10.1113/JP271078
external_id:
  isi:
  - '000365267700003'
  pmid:
  - '26282459'
intvolume: '       593'
isi: 1
issue: '22'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4650409/
month: '11'
oa: 1
oa_version: Submitted Version
page: 4835 - 4853
pmid: 1
publication: Journal of Physiology
publication_status: published
publisher: Wiley-Blackwell
publist_id: '5606'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Dual action of leptin on rest-firing and stimulated catecholamine release via
  phosphoinositide 3-kinase-riven BK channel up-regulation in mouse chromaffin cells
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 593
year: '2015'
...
---
_id: '1580'
abstract:
- lang: eng
  text: Synapsins (Syns) are an evolutionarily conserved family of presynaptic proteins
    crucial for the fine-tuning of synaptic function. A large amount of experimental
    evidences has shown that Syns are involved in the development of epileptic phenotypes
    and several mutations in Syn genes have been associated with epilepsy in humans
    and animal models. Syn mutations induce alterations in circuitry and neurotransmitter
    release, differentially affecting excitatory and inhibitory synapses, thus causing
    an excitation/inhibition imbalance in network excitability toward hyperexcitability
    that may be a determinant with regard to the development of epilepsy. Another
    approach to investigate epileptogenic mechanisms is to understand how silencing
    Syn affects the cellular behavior of single neurons and is associated with the
    hyperexcitable phenotypes observed in epilepsy. Here, we examined the functional
    effects of antisense-RNA inhibition of Syn expression on individually identified
    and isolated serotonergic cells of the Helix land snail. We found that Helix synapsin
    silencing increases cell excitability characterized by a slightly depolarized
    resting membrane potential, decreases the rheobase, reduces the threshold for
    action potential (AP) firing and increases the mean and instantaneous firing rates,
    with respect to control cells. The observed increase of Ca2+ and BK currents in
    Syn-silenced cells seems to be related to changes in the shape of the AP waveform.
    These currents sustain the faster spiking in Syn-deficient cells by increasing
    the after hyperpolarization and limiting the Na+ and Ca2+ channel inactivation
    during repetitive firing. This in turn speeds up the depolarization phase by reaching
    the AP threshold faster. Our results provide evidence that Syn silencing increases
    intrinsic cell excitability associated with increased Ca2+ and Ca2+-dependent
    BK currents in the absence of excitatory or inhibitory inputs.
article_processing_charge: No
article_type: original
author:
- first_name: Oscar
  full_name: Brenes, Oscar
  last_name: Brenes
- first_name: David H
  full_name: Vandael, David H
  id: 3AE48E0A-F248-11E8-B48F-1D18A9856A87
  last_name: Vandael
  orcid: 0000-0001-7577-1676
- first_name: Emilio
  full_name: Carbone, Emilio
  last_name: Carbone
- first_name: Pier
  full_name: Montarolo, Pier
  last_name: Montarolo
- first_name: Mirella
  full_name: Ghirardi, Mirella
  last_name: Ghirardi
citation:
  ama: Brenes O, Vandael DH, Carbone E, Montarolo P, Ghirardi M. Knock-down of synapsin
    alters cell excitability and action potential waveform by potentiating BK and
    voltage gated Ca2 currents in Helix serotonergic neurons. <i>Neuroscience</i>.
    2015;311:430-443. doi:<a href="https://doi.org/10.1016/j.neuroscience.2015.10.046">10.1016/j.neuroscience.2015.10.046</a>
  apa: Brenes, O., Vandael, D. H., Carbone, E., Montarolo, P., &#38; Ghirardi, M.
    (2015). Knock-down of synapsin alters cell excitability and action potential waveform
    by potentiating BK and voltage gated Ca2 currents in Helix serotonergic neurons.
    <i>Neuroscience</i>. Elsevier. <a href="https://doi.org/10.1016/j.neuroscience.2015.10.046">https://doi.org/10.1016/j.neuroscience.2015.10.046</a>
  chicago: Brenes, Oscar, David H Vandael, Emilio Carbone, Pier Montarolo, and Mirella
    Ghirardi. “Knock-down of Synapsin Alters Cell Excitability and Action Potential
    Waveform by Potentiating BK and Voltage Gated Ca2 Currents in Helix Serotonergic
    Neurons.” <i>Neuroscience</i>. Elsevier, 2015. <a href="https://doi.org/10.1016/j.neuroscience.2015.10.046">https://doi.org/10.1016/j.neuroscience.2015.10.046</a>.
  ieee: O. Brenes, D. H. Vandael, E. Carbone, P. Montarolo, and M. Ghirardi, “Knock-down
    of synapsin alters cell excitability and action potential waveform by potentiating
    BK and voltage gated Ca2 currents in Helix serotonergic neurons,” <i>Neuroscience</i>,
    vol. 311. Elsevier, pp. 430–443, 2015.
  ista: Brenes O, Vandael DH, Carbone E, Montarolo P, Ghirardi M. 2015. Knock-down
    of synapsin alters cell excitability and action potential waveform by potentiating
    BK and voltage gated Ca2 currents in Helix serotonergic neurons. Neuroscience.
    311, 430–443.
  mla: Brenes, Oscar, et al. “Knock-down of Synapsin Alters Cell Excitability and
    Action Potential Waveform by Potentiating BK and Voltage Gated Ca2 Currents in
    Helix Serotonergic Neurons.” <i>Neuroscience</i>, vol. 311, Elsevier, 2015, pp.
    430–43, doi:<a href="https://doi.org/10.1016/j.neuroscience.2015.10.046">10.1016/j.neuroscience.2015.10.046</a>.
  short: O. Brenes, D.H. Vandael, E. Carbone, P. Montarolo, M. Ghirardi, Neuroscience
    311 (2015) 430–443.
date_created: 2018-12-11T11:52:50Z
date_published: 2015-12-17T00:00:00Z
date_updated: 2025-09-23T09:25:46Z
day: '17'
ddc:
- '570'
department:
- _id: PeJo
doi: 10.1016/j.neuroscience.2015.10.046
external_id:
  isi:
  - '000366144000037'
file:
- access_level: open_access
  checksum: af2c4c994718c7be417eba0dc746aac9
  content_type: application/pdf
  creator: dernst
  date_created: 2020-05-15T06:50:20Z
  date_updated: 2020-07-14T12:45:02Z
  file_id: '7849'
  file_name: 2015_Neuroscience_Brenes.pdf
  file_size: 5563015
  relation: main_file
file_date_updated: 2020-07-14T12:45:02Z
has_accepted_license: '1'
intvolume: '       311'
isi: 1
language:
- iso: eng
month: '12'
oa: 1
oa_version: Submitted Version
page: 430 - 443
publication: Neuroscience
publication_status: published
publisher: Elsevier
publist_id: '5591'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Knock-down of synapsin alters cell excitability and action potential waveform
  by potentiating BK and voltage gated Ca2 currents in Helix serotonergic neurons
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 311
year: '2015'
...
---
_id: '1614'
abstract:
- lang: eng
  text: 'GABAergic perisoma-inhibiting fast-spiking interneurons (PIIs) effectively
    control the activity of large neuron populations by their wide axonal arborizations.
    It is generally assumed that the output of one PII to its target cells is strong
    and rapid. Here, we show that, unexpectedly, both strength and time course of
    PII-mediated perisomatic inhibition change with distance between synaptically
    connected partners in the rodent hippocampus. Synaptic signals become weaker due
    to lower contact numbers and decay more slowly with distance, very likely resulting
    from changes in GABAA receptor subunit composition. When distance-dependent synaptic
    inhibition is introduced to a rhythmically active neuronal network model, randomly
    driven principal cell assemblies are strongly synchronized by the PIIs, leading
    to higher precision in principal cell spike times than in a network with uniform
    synaptic inhibition. '
article_processing_charge: No
author:
- first_name: Michael
  full_name: Strüber, Michael
  last_name: Strüber
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
- first_name: Marlene
  full_name: Bartos, Marlene
  last_name: Bartos
citation:
  ama: Strüber M, Jonas PM, Bartos M. Strength and duration of perisomatic GABAergic
    inhibition depend on distance between synaptically connected cells. <i>PNAS</i>.
    2015;112(4):1220-1225. doi:<a href="https://doi.org/10.1073/pnas.1412996112">10.1073/pnas.1412996112</a>
  apa: Strüber, M., Jonas, P. M., &#38; Bartos, M. (2015). Strength and duration of
    perisomatic GABAergic inhibition depend on distance between synaptically connected
    cells. <i>PNAS</i>. National Academy of Sciences. <a href="https://doi.org/10.1073/pnas.1412996112">https://doi.org/10.1073/pnas.1412996112</a>
  chicago: Strüber, Michael, Peter M Jonas, and Marlene Bartos. “Strength and Duration
    of Perisomatic GABAergic Inhibition Depend on Distance between Synaptically Connected
    Cells.” <i>PNAS</i>. National Academy of Sciences, 2015. <a href="https://doi.org/10.1073/pnas.1412996112">https://doi.org/10.1073/pnas.1412996112</a>.
  ieee: M. Strüber, P. M. Jonas, and M. Bartos, “Strength and duration of perisomatic
    GABAergic inhibition depend on distance between synaptically connected cells,”
    <i>PNAS</i>, vol. 112, no. 4. National Academy of Sciences, pp. 1220–1225, 2015.
  ista: Strüber M, Jonas PM, Bartos M. 2015. Strength and duration of perisomatic
    GABAergic inhibition depend on distance between synaptically connected cells.
    PNAS. 112(4), 1220–1225.
  mla: Strüber, Michael, et al. “Strength and Duration of Perisomatic GABAergic Inhibition
    Depend on Distance between Synaptically Connected Cells.” <i>PNAS</i>, vol. 112,
    no. 4, National Academy of Sciences, 2015, pp. 1220–25, doi:<a href="https://doi.org/10.1073/pnas.1412996112">10.1073/pnas.1412996112</a>.
  short: M. Strüber, P.M. Jonas, M. Bartos, PNAS 112 (2015) 1220–1225.
date_created: 2018-12-11T11:53:02Z
date_published: 2015-01-27T00:00:00Z
date_updated: 2025-09-23T10:49:39Z
day: '27'
ddc:
- '570'
department:
- _id: PeJo
doi: 10.1073/pnas.1412996112
ec_funded: 1
external_id:
  isi:
  - '000348417000066'
  pmid:
  - '25583495'
file:
- access_level: open_access
  checksum: 6703309a1f58493cf5a704211fb6ebed
  content_type: application/pdf
  creator: dernst
  date_created: 2019-01-17T07:52:40Z
  date_updated: 2020-07-14T12:45:07Z
  file_id: '5838'
  file_name: 2015_PNAS_Strueber.pdf
  file_size: 1280860
  relation: main_file
file_date_updated: 2020-07-14T12:45:07Z
has_accepted_license: '1'
intvolume: '       112'
isi: 1
issue: '4'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: 1220 - 1225
pmid: 1
project:
- _id: 25C26B1E-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P24909-B24
  name: Mechanisms of transmitter release at GABAergic synapses
- _id: 25C0F108-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '268548'
  name: Nanophysiology of fast-spiking, parvalbumin-expressing GABAergic interneurons
publication: PNAS
publication_status: published
publisher: National Academy of Sciences
publist_id: '5552'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Strength and duration of perisomatic GABAergic inhibition depend on distance
  between synaptically connected cells
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 112
year: '2015'
...
