Linked Life Data

1846416

Source:http://linkedlifedata.com/resource/pubmed/id/1846416

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1991-2-22
pubmed:abstractText
Cocaine, like opiates, modulates a variety of immune functions. In the present study, we investigated the effect of cocaine on superoxide anion (O2-) production, an index of a microbicidal activity, by cultured human peripheral blood mononuclear cells. Release of O2- was measured by superoxide dismutase-inhibitable reduction of ferricytochrome C in response to phorbol myristate acetate. Peripheral blood mononuclear cells cultured in the presence of cocaine (1 microM) for 48 hr released less (P less than .05) O2- than did nontreated control cells (95.1 +/- 10.2 vs. 57.9 +/- 6.6 nmol/10(7) cells/60 min, respectively). This suppressive effect was dose-dependent. Antibodies to transforming growth factor-beta, a cytokine inhibitory of monocyte O2- production, abrogated (P less than .01) cocaine-mediated suppression, suggesting that transforming growth factor-beta is involved in the suppression. Also, naloxone blocked (P less than .01) the suppressive effects of both cocaine and transforming growth factor-beta on O2- production, suggesting that the suppressive mechanism is naloxone-sensitive.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0022-3565
pubmed:author
pubmed:issnType
Print
pubmed:volume
256
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
255-8
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Cocaine-mediated suppression of superoxide production by human peripheral blood mononuclear cells.
pubmed:affiliation
Department of Medicine, Hennepin County Medical Center, Minneapolis, Minnesota.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.