Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2006-9-18
pubmed:abstractText
We have previously shown that the neurosteroid pregnenolone sulfate (PS) inhibits the capsaicin receptor-mediated current in rat dorsal root ganglion neurons. Here, we examined the effect of intradermal injection of PS into the rat hindpaw on capsaicin-induced nociception. Results revealed that PS co-injected with capsaicin dose-dependently inhibited the capsaicin-induced nocifensive response. In contrast, injections of PS into one hindpaw and capsaicin into the contralateral hindpaw had no effect on the capsaicin-induced nocifensive response, suggesting that PS produced its effect locally but not systemically. Moreover, PS inhibition of the capsaicin-induced nocifensive response was not significantly reduced by a nonselective opioid receptor antagonist or by cannabinoid receptor antagonists, indicating that neither an opioid- nor a cannabinoid-dependent mechanism mediated the effect of PS. These data demonstrate that PS acts peripherally to attenuate capsaicin-induced nociception through an opioid- and cannabinoid-independent mechanism and suggest a new therapeutic potential for PS in pain management.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
20
pubmed:volume
349
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
626-33
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Intradermal pregnenolone sulfate attenuates capsaicin-induced nociception in rats.
pubmed:affiliation
Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't