Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2000-5-9
pubmed:abstractText
Interleukin-1 is an anorexigenic cytokine, and is involved in the pathogenesis of cancer anorexia. Interleukin-1 induced anorexia is mediated by direct action within the hypothalamus, and by peripheral mechanism(s) yet to be determined. Here we present evidence showing that in an animal model the peripheral injection of interleukin-1 is followed by a significant rise in brain tryptophan concentrations. Tryptophan is the precursor of the neurotransmitter serotonin, known to mediate the onset of satiety under normal and pathological conditions. By inference, we conclude that interleukin-1 induced anorexia is mediated by at least two different mechanism: i) interleukin-1 direct action within the hypothalamus; ii) increased brain serotonergic activity, secondary to interleukin-1 induced increased brain availability of the serotonin precursor, tryptophan.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0065-2598
pubmed:author
pubmed:issnType
Print
pubmed:volume
467
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
105-8
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Peripherally injected IL-1 induces anorexia and increases brain tryptophan concentrations.
pubmed:affiliation
Department of Clinical Medicine, University La Sapienza, Rome, Italy.
pubmed:publicationType
Journal Article