EFFECT OF EXOGENOUS PROGESTERONE ON OVARIAN 17-BETA ESTRADIOL SECRETION IN 4-DAY CYCLIC RATS

  • 1 January 1975
    • journal article
    • research article
    • Vol. 169  (5) , 1277-1280
Abstract
The rate of ovarian 17.beta. estradiol secretion was decreased on the afternoon of diestrus day 2 in 4-day cyclic female rats with cycles prolonged to 5 days following progesterone treatment as compared to untreated 4-day cyclic females. Estradiol values also appeared lower on diestrus day 3 and on proestrus in experimental 5-day cycles than on proestrus in natural 4-day cycles.

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