نتایج جستجو برای: ghrh

تعداد نتایج: 735  

محمد چمنی مهدی امین افشار مهدی خسروی,

   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 ...

Journal: :American journal of physiology. Endocrinology and metabolism 2001
C M Lasko A I Korytko W B Wehrenberg L Cuttler

To understand the capacity of growth hormone-releasing hormone (GHRH) to regulate expression of the GHRH receptor, we studied the effects of GHRH on GHRH receptor mRNA expression in immature and adult rats by use of pituitary cell culture and immunoneutralization approaches. Pituitary cell cultures from neonatal (2-day-old) and adult (70-day-old) rats were treated with GHRH for 4, 24, or 72 h. ...

2013
Qiming Wang Yueyue Wang Xianhu Fu Yong Huang

BACKGROUND The present study aims to explore the significance of the expression of growth hormone-releasing hormone (GHRH) and its receptor splice variant 1 (GHRHSV1) in endometriosis (EM). MATERIALS AND METHODS In this research paper 80 EM patients who received treatment between March 2009 and September 2010 were selected, among which 20 were in stages I, II, III and IV respectively. 50 non-...

Journal: :Archives of disease in childhood 1988
P J Smith C G Brook

Sixteen prepubertal children who were insufficient for growth hormone were treated with growth hormone releasing hormone (GHRH) 1-40 and GHRH 1-29 for a mean time of nine months (range 6-12 months) with each peptide. Eleven children received GHRH 1-40 in four subcutaneous nocturnal pulses (dose 4-8 micrograms/kg/day) and eight (three of whom were also treated with GHRH 1-40) received GHRH 1-29 ...

Journal: :The Journal of clinical investigation 1996
C A Jaffe R DeMott-Friberg A L Barkan

The roles of hypothalamic growth hormone-releasing hormone (GHRH) and of somatostatin (SRIF) in pharmacologically stimulated growth hormone (GH) secretion in humans are unclear. GH responses could result either from GHRH release or from acute decline in SRIF secretion. To assess directly the role of endogenous GHRH in human GH secretion, we have used a competitive GHRH antagonist, (N-Ac-Tyr1,D-...

Journal: :American journal of physiology. Endocrinology and metabolism 2008
Karine Bédard Julie Strecko Karyne Thériault Julie Bédard Christelle Veyrat-Durebex Pierrette Gaudreau

The present study investigated the effects of diabetes and high glucose on GHRH receptor (GHRH-R) mRNA and protein levels in the pituitary of diabetic rats 2, 21, and 60 days post-streptozotocin (post-STZ) administration. Two days post-STZ, the 2.5-kb GHRH-R mRNA transcript was increased. Twenty-one days post-STZ, both the 2.5- and 4-kb transcripts and a 72-kDa (125)I-GHRH-GHRH-R complex were e...

Journal: :European journal of endocrinology 2005
A Munafo T X Q Nguyen O Papasouliotis H Lécuelle A Priestley M O Thorner

OBJECTIVE The clinical use of growth hormone-releasing hormone (GHRH) is limited by its short half-life. Polyethylene glycol-conjugated GHRH (PEG-GHRH) was developed to provide increased stability compared with the currently available GHRH(1-29). This study aimed to evaluate the safety, tolerability and pharmacodynamics of PEG-GHRH. DESIGN PEG-GHRH was administered by subcutaneous injection t...

Journal: :The Journal of clinical endocrinology and metabolism 1996
B Reichardt M Schrader J Mojto G Mehltretter O A Müller J Schopohl

Repeated injection of GHRH leads to a decrease in the GH response in normal subjects. Arginine (Arg) stimulates GH secretion by suppression of hypothalamic somatostatin. To confirm these findings, eight normal men were examined in a series of five settings: test 1 (GHRH/GHRH-TRH), 100 micrograms GHRH injected iv, followed by 100 micrograms GHRH, iv, after 120 min and 200 micrograms TRH, iv, aft...

Journal: :Annals of oncology : official journal of the European Society for Medical Oncology 2001
M Doga S Bonadonna A Burattin A Giustina

The aim of this article is to briefly review the physiology of growth hormone-releasing hormone (GHRH) and the diagnosis and treatment of GHRH-mediated acromegaly. Moreover, the role of GHRH and its antagonists in the pathogenesis and treatment of cancer will be reviewed. Hypothalamic GHRH is secreted into the portal system, binds to specific surface receptors of the somatotroph cell and elicit...

Journal: :Endocrinology 2013
Claudia Penna Fabio Settanni Francesca Tullio Letizia Trovato Pasquale Pagliaro Giuseppe Alloatti Ezio Ghigo Riccarda Granata

GHRH stimulates GH synthesis and release from the pituitary and exerts direct effects in extrapituitary tissues. We have previously shown that pretreatment with GHRH reduces cardiomyocyte apoptosis and improves heart function in isolated rat hearts subjected to ischemia/reperfusion (I/R). Here, we determined whether GHRH given at reperfusion reduces myocardial reperfusion injury and investigate...

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