The possible role of the pituitary gland and uterine tissue in the production system of 13,14-dihydroprostaglandin F2.ALPHA. in rat ovary.
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概要
- 論文の詳細を見る
In order to examine a possible role of the pituitary gland and uterine tissue in the formation of 13, 14-dihydroprostaglandin F<SUB>2α</SUB> (13, 14H<SUB>2</SUB>-PGF<SUB>2α</SUB>) in rat ovary, hypophysectomized and hysterectomized rats were used. Gonadotropins stimulated the formation of 13, 14H<SUB>2</SUB>2-PGF<SUB>2α</SUB> from prostaglandin F<SUB>2α</SUB> (PGF<SUB>2α</SUB>) and 13, 14-dihydro-15-keto-PGF<SUB>2α</SUB> (15KD-PGF<SUB>2α</SUB>) in the ovarian homogenate of hypophysectomized and hysterectomized rats as well as in intact rats. Ovarian steroids, estradiol and progesterone, reduced the formation of 13, 14H<SUB>2</SUB>-PG F<SUB>2α</SUB> in the ovarian homogenate of intact rats. However, in hysterectomized and hypophysectomized rats, its formation was not affected by ovarian steroids. On the other hand, when pregnant mare serum gonadotropin (PMS) and estradiol were simultaneously administered to intact and hypophysectomized rats, the formation of 13, 14H<SUB>2</SUB>-PG F<SUB>2α</SUB> in the ovary showed a tendency to be increased as compared with that after treatment with PMS alone. These results not only suggest that the formation of 13, 14H<SUB>2</SUB>-PGF<SUB>2α</SUB>, in rat ovary is regulated by gonadotropins and ovarian steroids, but also that uterine tissue may take part in the process of its formation.
- 公益社団法人 日本薬理学会の論文
著者
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Kogo Hiroshi
Department Of Anatomy And Cell Biology Gunma University School Of Medicine
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Inazu Norihisa
Department Of Pharmacology And Toxicology Tokyo College Of Pharmacy
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KOGO Hiroshi
Department of Pharmacology, Tokyo College of Pharmacy
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AIZAWA Yoshio
Department of Pharmacolgy, Tokyo College of Pharmacy
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