Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1985-3-25
pubmed:abstractText
Animals treated with high doses of amphetamines have been used as a model of schizophrenia due to the similarities between the psychosis associated with this mental disorder and that induced by chronic amphetamine abuse. When administered to naive rats in high doses, the amphetamine-like CNS stimulant methamphetamine produces drastic alterations in the neurochemical parameters of the neostriatal monoaminergic systems. These alterations are characterized by a decrease in the activities of the rate-limiting enzymes for dopamine and serotonin synthesis, as well as a decrease in the concentrations of both neurotransmitters and their metabolites. However, tolerance develops to these neurochemical effects when drug administration occurs in a pattern similar to that encountered during chronic amphetamine abuse. The results indicate that the neurochemical alterations produced by amphetamines in naive and tolerant animals differ widely. This suggests that the administration of high doses of amphetamine-like central stimulants to naive rats may not be an appropriate model for studying the neurochemical changes associated with psychosis and amphetamine abuse.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0022-3042
pubmed:author
pubmed:issnType
Print
pubmed:volume
44
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
852-5
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1985
pubmed:articleTitle
Methamphetamine-induced depression of monoamine synthesis in the rat: development of tolerance.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.