Linked Life Data

16809485

Source:http://linkedlifedata.com/resource/pubmed/id/16809485

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2006-10-9
pubmed:abstractText
Consumption of nutrients rich in hydroxystilbenes has been promoted because of their health benefits, including dampening of inflammatory responses. However, few studies have examined their effects in vivo. Here, we show that the hydroxystilbene oxyresveratrol (trans-2,3',4,5'-tetrahydroxystilbene: o-RES) blocked hypothermia but caused no significant effect on the febrile response to the immune stimulus, bacterial LPS in rats. This was associated with a reduction in the LPS-induced plasma cytokine, tumor necrosis factor (TNF)-alpha, but not IL-6. Both IL-6-stimulated STAT-3 and LPS-induced cycoloxygenase-2 expression in the hypothalamus were not affected by o-RES. These data strongly suggest that the o-RES-induced dampening of neuroimmune responses is largely due to its inhibitory effect on TNF-alpha production. In contrast to in vitro experiments, o-RES has no direct effect on NF-kappaB signaling pathway in vivo. The specific inhibitory effect of o-RES on TNF-alpha opens new avenues for the clinical use of o-RES in pathological conditions where excessive production of TNF-alpha is deleterious.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0363-6119
pubmed:author
pubmed:issnType
Print
pubmed:volume
291
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
R1215-21
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Oxyresveratrol dampens neuroimmune responses in vivo: a selective effect on TNF-alpha.
pubmed:affiliation
Hotchkiss Brain Institute, Dept. of Physiology and Biophysics, Faculty of Medicine, Univ. of Calgary, 3330 Hospital Dr., NW, Calgary, Alberta T2N 4N1, Canada. mouihate@ucalgary.ca
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't