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C-AMP concentration in various organs of female rats and in human ovaries with aging


, : C-AMP concentration in various organs of female rats and in human ovaries with aging. Nihon Sanka Fujinka Gakkai Zasshi 34(2): 223-232

The change in 3',5'-cyclic adenosine monophosphate (c-AMP) concentration was observed in various organs of rats in gonadal cycle in adult group and with aging (30, 70, 100, 120 weeks), and in human ovaries with aging. 1) The average c-AMP concentration of ovaries of rats showed a significant change with estrus cycle and was higher in the following sequence: proestrus, diestrus II, diestrus I and estrus phase. This tendency was also seen in hypothalamus and pituitary, but was not statistically significant, 2) The average c-AMP concentration in tissues began to decline significantly from 70 weeks in cerebral cortex and hypothalamus, and from 80 weeks in ovaries. However, on the other hand the concentrations in pituitary, liver and adrenal declined markedly from 100 weeks. 3) The c-AMP in ovaries of 80 weeks rats by pregnant mare serum (PMS) road increased by 0.5-fold in concentration, and by 0.6-fold in whole tissue relative to that of 30 weeks rats. 4) A significant difference in serum LH and FSH level between ovarian artery and vein was not found in cycling mature group, non-cycling climacteric group and post-menopausal group of women. 5) Both average concentrations and total values of c-AMP in ovaries of non-cycling climacteric and post-menopausal women were lower than those of mature cycling women. This fact may imply a different response by ovarian tissues such as corpus luteum, follicle and other tissues to gonadotropin. From these results of c-AMP in tissues, it is concluded that the decline of ovarian function with aging of rats was relatively earlier than pituitary, although being delayed compared with hypothalamus, and were the ovarian function in humans declined in the premenopausal period.

US$29.90

PMID: 6278032


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