rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
1-2
|
pubmed:dateCreated |
1992-9-25
|
pubmed:abstractText |
The dopamine innervation of the prefrontal cortex can be differentiated from other telencephalic dopamine projection fields by its sensitivity to stress. The stress-induced activation of the mesoprefrontal cortical dopamine system can be blocked by pretreatment with benzodiazepines. A group of neuroactive steroids that modulate GABA-induced chloride flux through means distinct from that of the benzodiazepines has recently been identified. Intraventricular administration of the neuroactive steroid 3 alpha,21-dihydroxy-5 alpha-pregnane-20-one resulted in a dose-dependent decrease in dopamine metabolites in the prefrontal cortex, but not in mesolimbic or striatal sites; sedative effects were not observed. Moreover, the neuroactive steroid selectively attenuated the stress-induced activation of the mesoprefrontal cortical dopamine system. These data suggest that neuroactive steroids may function as endogenous anxiolytic agents.
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pubmed:grant |
|
pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
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pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Apr
|
pubmed:issn |
0006-8993
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
24
|
pubmed:volume |
578
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
351-6
|
pubmed:dateRevised |
2007-11-14
|
pubmed:meshHeading |
pubmed-meshheading:1511287-3,4-Dihydroxyphenylacetic Acid,
pubmed-meshheading:1511287-Anesthetics,
pubmed-meshheading:1511287-Animals,
pubmed-meshheading:1511287-Cerebral Cortex,
pubmed-meshheading:1511287-Cerebral Ventricles,
pubmed-meshheading:1511287-Desoxycorticosterone,
pubmed-meshheading:1511287-Dopamine,
pubmed-meshheading:1511287-Dose-Response Relationship, Drug,
pubmed-meshheading:1511287-Exploratory Behavior,
pubmed-meshheading:1511287-Homovanillic Acid,
pubmed-meshheading:1511287-Injections, Intraventricular,
pubmed-meshheading:1511287-Male,
pubmed-meshheading:1511287-Motor Activity,
pubmed-meshheading:1511287-Rats,
pubmed-meshheading:1511287-Rats, Inbred Strains,
pubmed-meshheading:1511287-Reference Values,
pubmed-meshheading:1511287-Stress, Psychological
|
pubmed:year |
1992
|
pubmed:articleTitle |
Regulation of the prefrontal cortical dopamine system by the neuroactive steroid 3a,21-dihydroxy-5a-pregnane-20-one.
|
pubmed:affiliation |
Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06510.
|
pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't
|