نتایج جستجو برای: neuronal excitability

تعداد نتایج: 130346  

2014
Nathalie Schicktanz Kyrill Schwegler Matthias Fastenrath Klara Spalek Annette Milnik Andreas Papassotiropoulos Thomas Nyffeler Dominique J-F de Quervain

Cognitive functions, such as working memory, depend on neuronal excitability in a distributed network of cortical regions. It is not known, however, if interindividual differences in cortical excitability are related to differences in working memory performance. In the present transcranial magnetic stimulation study, which included 188 healthy young subjects, we show that participants with lowe...

Journal: :Neuron 2006
Xue Qing Wang Ludmila V. Deriy Sarah Foss Ping Huang Fred S. Lamb Marcia A. Kaetzel Vytautas Bindokas Jeremy D. Marks Deborah J. Nelson

It is well established that ligand-gated chloride flux across the plasma membrane modulates neuronal excitability. We find that a voltage-dependent Cl(-) conductance increases neuronal excitability in immature rodents as well, enhancing the time course of NMDA receptor-mediated miniature excitatory postsynaptic potentials (mEPSPs). This Cl(-) conductance is activated by CaMKII, is electrophysio...

Journal: :Iranian biomedical journal 2013
Farideh Bahrami Mahyar Janahmadi

INTRODUCTION Antibiotic supplements are regularly used in neuronal culture media to control contamination; however, they can interfere with the neuronal excitability and affect electrophysiological properties. Therefore, in this study, the effect of penicillin/streptomycin supplements on the spontaneous electrophysiological activity of hippocampal pyramidal neurons was examined. METHODS Elect...

Journal: :Seizure 2013
Nicolas Lang Holger Rothkegel Hannes Peckolt Günther Deuschl

PURPOSE Lacosamide (LCM) and carbamazepine (CBZ) are antiepileptic drugs both acting on neuronal voltage-gated sodium channels. Patch-clamp studies demonstrated significant differences in how LCM and CBZ affect neuronal membrane excitability. Despite valuable information patch-clamp studies provide, they also comprise some constraints. For example, little is known about effects of LCM on intrac...

Journal: :Brain : a journal of neurology 2016
Susan E Tomlinson S Veronica Tan David Burke Robyn W Labrum Andrea Haworth Vaneesha S Gibbons Mary G Sweeney Robert C Griggs Dimitri M Kullmann Hugh Bostock Michael G Hanna

Ion channel dysfunction causes a range of neurological disorders by altering transmembrane ion fluxes, neuronal or muscle excitability, and neurotransmitter release. Genetic neuronal channelopathies affecting peripheral axons provide a unique opportunity to examine the impact of dysfunction of a single channel subtype in detail in vivo. Episodic ataxia type 2 is caused by mutations in CACNA1A, ...

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