Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
1987-8-31
pubmed:abstractText
The effect of neurotensin (NT) on periaqueductal gray (PAG) neurons was measured with extra- and intracellular recording methods in an in vitro preparation. Neurons excited by NT were heterogeneously distributed, being preferentially located in a region of PAG rich in NT-like fiber immunoreactivity. The majority of the responsive neurons were located in regions surrounding the aqueduct and the medial part of PAG. In 90% of the neurons, application of NT produced excitation that lasted for more than 2 min, while in the remaining cells, the excitatory effect lasted for less than 1 min. An inhibitory action of NT was rarely observed. Intracellular recordings showed that NT produced a depolarization leading to an increase in the spontaneous activity and multiple spiking with only a slight decrease in membrane resistance. The excitatory effect of NT was observed in neurons that were maintained in a solution containing cobalt. These results support the hypothesis that NT action on PAG neurons is due to the depolarization of the membrane and that this effect is mediated through a postsynaptic mechanism.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0270-6474
pubmed:author
pubmed:issnType
Print
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2035-40
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Effect of neurotensin on neurons in the periaqueductal gray: an in vitro study.
pubmed:publicationType
Journal Article, In Vitro, Research Support, U.S. Gov't, P.H.S.