6-keto PGE1: a possible metabolite of prostacyclin having platelet antiaggregatory effects.
Author(s) -
C P Quilley,
J C McGiff,
W H Lee,
F.F. Sun,
Patrick Y.-K. Wong
Publication year - 1980
Publication title -
hypertension
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.986
H-Index - 265
eISSN - 1524-4563
pISSN - 0194-911X
DOI - 10.1161/01.hyp.2.4.524
Subject(s) - prostacyclin , metabolite , platelet , chemistry , potency , platelet aggregation , medicine , prostaglandin e1 , metabolism , endocrinology , biological activity , pharmacology , biochemistry , in vitro
Hepatic metabolism of prostacyclin (PGI2) results in the formation of several biologically inactive lipids and one stable product that has the same chromatographic and biological properties as authentic 6-keto PGE1. Both prostaglandins, 6-keto PGE1 and PGI2, have comparable potency in their antiaggregatory and disaggregatory effects on platelets. They contract the superfused rat stomach strip but differ in their effects on the bovine coronary artery, which is contracted by 6-keto PGE1 but relaxed by PGI2. Further, 6-keto PGE1 is considerably more stable than PGI2. Thus, 6-keto PGE1 could account for some of the prolonged effects occasionally seen with PGI2.
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