Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1995-12-4
pubmed:abstractText
We used whole-cell patch-clamp techniques on presynaptic terminals and postsynaptic neurons of the glutamatergic magnocellularis synapse in the chick auditory brainstem to study the effects of N, P, and L-type calcium channel blockers directly on presynaptic calcium currents and transmitter release. Presynaptic calcium currents and transmitter release were unaffected by nifedipine, blocked partially by omega-agatoxin IVA and completely by omega-conotoxin GVIA. The presynaptic calcium current is a low voltage-activated, noninactivating current and its block by omega-agatoxin IVA was not reversed by repeated depolarization of the presynaptic terminal. Thus, the presynaptic calcium current that underlies transmitter release at the chick magnocellularis synapse differs in some respects from N and P-type calcium currents described in vertebrate neuronal cell bodies.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0270-6474
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
6576-85
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Pharmacological characterization of presynaptic calcium currents underlying glutamatergic transmission in the avian auditory brainstem.
pubmed:affiliation
Biology Division, California Institute of Technology, Pasadena 91125, USA.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't