| Miscellaneous/General: | 6-keto-PGF1alpha is a stable hydrolysis product of prostacyclin (PGI2). Due to the short half-life of PGI2 in buffer (2-3 minutes) the production of prostacyclin is typically monitored by measurement of the 6-keto-PGF1alpha metabolite and its derivative in urine, 2,3-dinor-6-keto-PGF1alpha. PGI2 has autocoid functions that include platelet aggregation, inhibition of vasoconstrictor responses to pressor hormones, platelet anti- and disaggregatory properties, and reproductive functions. The effects are induced by receptor-mediated elevation of cAMP. Prostacyclin has clinical applications in atherosclerosis and protection from myocardial ischemia. |