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Attenuating activity of the ovary on LH response to GnRH during the follicular phase of the cycle
(2014)
Objective Oestradiol sensitizes the pituitary to GnRH, while gonadotrophin surge attenuating factor (GnSAF) may oppose this action. Using the LH response to GnRH during treatment with FSH as an in vivo bioassay for GnSAF, ...
Attenuation of the oestrogen positive feedback mechanism with the age in postmenopausal women
(2015)
ObjectiveIt has been reported that the positive feedback mechanism of oestrogens and progesterone is preserved, although attenuated, in late postmenopausal years. Whether this is also true for the positive feedback effect ...