Variation in Responsiveness to Synthetic LH-Releasing Factor (LRF) in Proestrous and Diestrous-3 Rats
نویسندگان
چکیده
منابع مشابه
Effect of luteinizing hormone-releasing hormone (LH-RH) on the multiunit activity of the arcuate nucleus in the proestrous rats.
Multiple Unit Activity (MUA) of the hypothalamic arcuate nucleus as indicated by discriminated spikes with window setting between 18-30 uV, the integrated MUA and the cortical EEG of the urethane anaesthetized rats on the proestrous day was recorded with the help of a polygraph. Infusion of LH-RH in the 3rd ventricle markedly increased the arcuate nucleus MUA. The effect started within minutes ...
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The role of luteinizing hormone (LH) and LH-releasing hormone (LH-RH) in the maintenance of early pregnancy in rats was studied. Serum levels of progesterone (P) and LH were measured daily in untreated pregnant rats from Day 4 through parturition. Serum levels of P and LH were determined on Days 11 and 15 of pregnancy in animals treated with antisera to LH (LH-A/S) and to LH-RH (LH-RH-A/S) on...
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The effect of estrogen and progestin on pituitary responsiveness to 150 mug synthetic luteinizing hormone-releasing factor (LRF) was assessed in premenopausal women receiving sequential (n=12) and combination (n=7) contraceptive steroids. A marked contrast in the time-course and maximal response to LRF was found; a prompt but quantitatively smaller luteinizing hormone (LH) response was seen dur...
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ژورنال
عنوان ژورنال: Endocrinology
سال: 1974
ISSN: 0013-7227,1945-7170
DOI: 10.1210/endo-94-2-556