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Effects of 2-hydroxyoestradiol and 4-hydroxyoestradiol on gonadotrophin and prolactin secretion in women


, : Effects of 2-hydroxyoestradiol and 4-hydroxyoestradiol on gonadotrophin and prolactin secretion in women. Acta Endocrinologica 105(1): 1-5

In order to investigate the effects of 2-hydroxyoestradiol (2-OHE2) and 4-hydroxyoestradiol (4-OHE2) on the release of human pituitary hormones, each steroid (500 micrograms single bolus) was injected to young women during the follicular phase. Both steroids resulted in a transient suppression followed by a small rise of LH and FSH. 4-OHE2 appeared to be more potent than 2-OHE2. Injection of only the vehicle caused no change in gonadotrophin levels. The morning fall of plasma Prl was common in young women as an expression of circadian variation. Although the Prl fall tended to be greater in the 4-OHE2 group, analyses failed to reach statistical significance.

US$29.90

PMID: 6421038


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