Role of prostaglandins in estrogen-induced uterine hyperemia
1973; Elsevier BV; Volume: 4; Issue: 5 Linguagem: Inglês
10.1016/s0090-6980(73)80045-0
ISSN1878-416X
AutoresMichael J. Ryan, K. Clark, D. E. Van Orden, D. B. Farley, Lars Edvinsson, N.‐O. Sjöberg, L.S. Van Orden, Michael J. Brody,
Tópico(s)Urticaria and Related Conditions
ResumoEstrogen-induced uterine hyperemia is known to result from some other mechanism than direct vasodilatation produced by the hormone. Prostaglandin E1 has been shown to exhibit properties consistent with a role as a vasodilator intermediate in estrogen-induced hyperemia. In the present study performed on rats the hyperemic response to estrogen as estimated by changes in uterine blood volume was blocked by two different prostaglandin synthesis inhibitors, indomethacin and meclofenamic acid. There was a parallel block of the increase in uterine PGE and PGF activity (radioimmunoassay) produced by estrogen. These results demonstrate that estrogen induces formation of uterine prostaglandins which appear to play a role in promoting the increase in blood supply to the uterus.
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