Linked Life Data

1324449

Source:http://linkedlifedata.com/resource/pubmed/id/1324449

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1992-9-22
pubmed:abstractText
Performance in a vigilance task and the associated neuroendocrine changes during the performance in the task were examined in healthy subjects and in three groups of male heroin-addicts both before undergoing rehabilitation programmes and at various intervals from withdrawal (5 days, 1 to 2 mon, and 3 to 48 mon, respectively). Plasma levels of ACTH, beta-endorphin (EP) and prolactin (PRL) were measured every 10 min before and during performance. In drug addicts, simple reaction times never showed any significant difference as compared to control values. Despite similar baseline levels, ACTH exhibited a markedly depressed response to psychological testing in drug-addicts as compared to controls. Whereas a three-fold increase in ACTH was observed in 'normal' subjects during the performance (from 17 to 54 ng/l), mean values from drug-addicts remained unchanged. EP levels showed a wide scatter of individual values and inconsistent time courses over performance testing: after short-term abstinence, EP showed a three-fold increase over baseline control values but, contrary to what seen in 'normal' subjects, no changes over time were recorded. After long-term abstinence, basal EP was close to control values, but its increase during the testing period was still blunted. PRL levels decreased over the testing period both in controls and in heroin addicts. Thus, despite the lack of obvious signs of neurotoxicity, drug abusers show neuroendocrine changes consistent with a long-lasting selective impairment of the hypothalamic modulation of pituitary secretion.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0161-813X
pubmed:author
pubmed:issnType
Print
pubmed:volume
13
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
255-60
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Long-lasting impairment of neuroendocrine response to psychological stress in heroin addicts.
pubmed:affiliation
Institute of Clinical Medicine and Nephrology, University of Parma, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't