Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1988-6-20
pubmed:abstractText
The effects of vesamicol (AH5183), a blocker of acetylcholine transport, on the voltage-clamped neuromuscular junction of the frog were studied. Vesamicol (15-30 microM) reduced the peak height of the ionophoretically applied acetylcholine-induced current. The amplitude of the evoked endplate current was also decreased in the presence of vesamicol (30 microM). The endplate current was reduced further when the nerve was tetanically stimulated. The reduction of the endplate current after tetanic stimulation in the presence of vesamicol was due to a decrease in the mean quantal content. The decay time constants of the evoked endplate current and the miniature endplate current were also decreased by vesamicol. It was concluded that vesamicol acts as a postsynaptic blocker at the endplate. This neurotoxin could also decrease the immediately available quanta in the presynaptic nerve terminal, but the mechanism of action of vesamicol on transmitter release remains obscure.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0014-2999
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
147
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
209-15
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Post- and presynaptic effects of vesamicol (AH5183) on the frog neuromuscular junction.
pubmed:affiliation
Department of Physiology, Shimane Medical University, Izumo, Japan.
pubmed:publicationType
Journal Article, In Vitro