نتایج جستجو برای: releasing hormone
تعداد نتایج: 159315 فیلتر نتایج به سال:
Biological activity of a synthetic peptide with inhibin-like activity under in vitro and in vivo conditions was compared with three highly potent synthetic lutropin-releasing hormone antagonists. Unlike the synthetic lutropin-releasing hormone antagonists, which effectively inhibited both lutropin and follitropin secretion from the pituitary, the inhibin-like peptide showed a preferential effec...
Given the anatomical proximity of tuberculum sellae meningioma (TSM) to the hypothalamo-pituitary system, pituitary function impairments are of great concern. We retrospectively investigated pituitary function changes following surgery in patients with TSM using pituitary provocation tests (PPTs). Thirty-one patients (27 females and 4 males) with TSM underwent initial transcranial surgery (29 p...
Fractionation of hypothalamic extracts on a Sephadex G-25 column separates follicle-stimulating hormone-releasing factor (FSHRF) from luteinizing hormone-releasing hormone (LHRH). The FSH-releasing peak contained immunoreactive lamprey gonadotropin-releasing hormone (lGnRH) by radioimmunoassay, and its activity was inactivated by an antiserum specific to lGnRH. The identity of lGnRH-III with FS...
Noise is a widespread stress resource that may lead to detrimental effects on the health. However, the molecular basis of the stress response caused by noise remains elusive. We have studied the effects of acute and chronic noise stress on stress-related molecules in the hypothalamus and hippocampus and also corticosterone responses. Sprague Dawley rats were randomized into control, acute and c...
انتخاب حیوان بر اساس نشانگرهای مولکولی یکی از جدیدترین روشهای اصلاحی است که میتواند باعث بهبود صحت پیشبینی و پاسخ به انتخاب شود. GHRH (Growth-hormone-releasing hormone) یکیازژنهایبرگزیدهبرایاستراتژیهایانتخاببراساسمارکرمیباشد.براساسگزارشاتموجود، چندشکلیهایژن بهطورمعنیداریباصفاتاجزایشیروتولیدآنارتباطدارد. به منظور بررسی چندشکلی (پلیمورفیسم) مکان ژنی GHRH در نژاد سرابی، از 112 رأس گاو ...
PURPOSE Two groups of girls with premature breast development were studied retrospectively. We tried to identify clinical, radiological, and hormonal parameters that could distinguish between a benign, nonprogressive premature thelarche and a true precocious puberty. METHODS The clinical outcome of 88 girls with breast enlargement before 6.1 years of age was analyzed. Taking into account the ...
In the present study, biological function of recombinant gonadotropin-releasing hormone associate peptide (rGnRH) was tested for induction ovulation and spawning in Sterlet sturgeon (Acipenser ruthenus) broodstock. For this purpose, broodstock were divided into four treatments treated with following preparing procedure: 0.9% NaCl (C); 2.5 ?g kg body weight?1 (BW) LHRH-A2 (luteinizing hormone-re...
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