Linked Life Data

109886

Source:http://linkedlifedata.com/resource/pubmed/id/109886

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1979-8-16
pubmed:abstractText
Levels of monoamine metabolites in three different regions of the rat brain were determined following treatment with piracetam (0.5 and 5 g/kg, i.p.). The concentration of prolactin in serum was also measured. Piracetam, at 5 g/kg, increased the levels of dihydroxyphenylacetic acid, homovanillic acid and 3-methoxy-4-hydroxyphenylethylene glycol, whereas 5-hydroxyindoleacetic acid was unaffected. The drug also increased prolactin concentrations in serum. The level of dopamine was unchanged in the olfactory tubercle and the striatum. These effects are different from those obtained with amphetamine-like drugs. The results would seem to indicate that piracetam accelerates brain catecholamine (CA) turnover via a blockade of CA receptors, as suggested for neuroleptic drugs. This effect could be responsible for the therapeutic action of piracetam on psychotic symptoms in psycho-organic disorders of old age. A blockade of brain CA receptors by piracetam is not compatible with facilitated learning, which seems to be mediated via other neuron systems than CA pathways.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0033-3158
pubmed:author
pubmed:issnType
Print
pubmed:day
28
pubmed:volume
61
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
235-8
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1979
pubmed:articleTitle
Effects of piracetam on brain monoamine metabolism and serum prolactin levels in the rat.
pubmed:publicationType
Journal Article