Evidence that the F2-isoprostane, 8-epi-prostaglandin F2 alpha is formed in vivo
1994
Morrow, J.D. | Minton, T.A. | Badr, K.F. | Roberts, L.J. II.
F2-isoprostanes are prostaglandin (PG)F2-like compounds that are produced in vivo as non-enzymatic products of free radical catalyzed peroxidation of arachidonic acid. One F2-isoprostane whose formation should be favored is 8-epi-PGF2-alpha.8-Epi-PGF2-alpha has been shown to exert potent bioactivity but proof that it is formed in vivo is lacking. Evidence is now presented suggesting that 8-epi-PGF2-alpha is, in fact, formed in vivo by demonstrating that an endogenous F2-isoprostane with a retention time on capillary GC identical with that of 8-epi-PGF2-alpha co-chromatographs through four high resolving HPLC purification procedures with authentic radiolabelled 8-epi-PGF2-alpha.
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