Metabolism of intravenously administered prostaglandin E1 in patients with peripheral arterial occlusive disease
Hesse, W.H.; Rudofsky, G.; Peskar, B.A.
Wiener Klinische Wochenschrift 103(18): 554-557
1991
ISSN/ISBN: 0043-5325 PMID: 1750222 Document Number: 4341
Using high performance liquid chromatography and radioimmunoassay we have investigated the stability of prostaglandin (PG) E1 and its metabolite 13,14-dihydro-PGE1 in human plasma as well as the initial metabolism of PGE1 infused intravenously (80 micrograms/patient/hour) in patients with peripheral arterial occlusive disease. 13,14-dihydro-PGE1 degraded like PGE1 in human plasma at 37 degrees C with a half-life of several hours. During infusion of PGE1 higher plasma concentrations of the major metabolite 15-keto-13,14-dihydro-PGE1 and lower plasma levels of PGE1 and 13,14-dihydro-PGE1 were observed. The metabolite 13,14-dihydro-PGE1 is of interest, since in contrast to 15-keto-13,14-dihydro-PGE1 it is biologically active. The biosynthesis of 13,14-dihydro-PGE1 could contribute to the therapeutic efficacy of PGE1 administered intravenously in patients with peripheral arterial occlusive disease.
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