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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Principal involvement of cyclooxygenase-1-derived prostaglandins in the c-fos expression of the rat hind brain following visceral stimulation with acetic acid.

We investigated the relationship between c-fos expression in the hind brain and peritoneal prostaglandin (PG) synthesis after visceronociceptive stimulation with acetic acid in rats. Time-course studies on the mRNA expression for c-fos in the hind brain and cyclooxygenase (COX) isoforms in the peritoneal cells, as well as on the peritoneal 6-keto-PGF1alpha accumulation, after stimulation indicated that COX-1 but not COX-2 was responsible for the peritoneal synthesis of PGs which were suggested to evoke c-fos expression in the hind brain. Pharmacological experiments using mofezolac, a preferential inhibitor against COX-1, and NS-398, a selective inhibitor against COX-2, confirmed the involvement of COX-1 derived PGs in the induction of c-fos expression in the hind brain following the noxious stimulation.[1]


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