نتایج جستجو برای: kisspeptins

تعداد نتایج: 148  

Journal: :iranian journal of basic medical sciences 0
mandana mahmoodzaeh sagheb department of biology, kazeroon branch, islamic azad university, kazeroon, iran negar azarpira transplant research center, shiraz university of medical sciences, shiraz, iran mokhtar mokhtary department of biology, kazeroon branch, islamic azad university, kazeroon, iran

objective(s): ghrelin is a peptide hormone that has been shown to have numerous central and peripheral effects. the central effects including gh secretion, food intake, and energy homeostasis are partly mediated by kiss1- kissr signaling pathway. ghrelin and its receptor are also expressed in the pancreatic islets. ghrelin is one of the key metabolic factors controlling insulin secretion from t...

2016
Rosaria Meccariello

Spermatogenesis, the process that leads the production of male gametes, consists in the progression of mitotic spermatogonia toward meiosis and spermiogenesis in order to produce functional spermatozoa. This complex process requires a deep network among a wide set of endocrine, paracrine and autocrine factors exerting their activity at different levels along the hypothalamus-pituitary-gonad (HP...

Journal: :Archives of endocrinology and metabolism 2016
Jose Donato Renata Frazão

Prolactin is best known for its effects of stimulating mammary gland development and lactogenesis. However, prolactin is a pleiotropic hormone that is able to affect several physiological functions, including fertility. Prolactin receptors (PRLRs) are widely expressed in several tissues, including several brain regions and reproductive tract organs. Upon activation, PRLRs may exert prolactin's ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Naoko Inoue Karin Sasagawa Kotaro Ikai Yuki Sasaki Junko Tomikawa Shinya Oishi Nobutaka Fujii Yoshihisa Uenoyama Yasushige Ohmori Naoyuki Yamamoto Eiichi Hondo Kei-ichiro Maeda Hiroko Tsukamura

The present study investigated whether kisspeptin-G protein-coupled receptor 54 (GPR54) signaling plays a role in mediating mating-induced ovulation in the musk shrew (Suncus murinus), a reflex ovulator. For this purpose, we cloned suncus Kiss1 and Gpr54 cDNA from the hypothalamus and found that suncus kisspeptin (sKp) consists of 29 amino acid residues (sKp-29). Injection of exogenous sKp-29 m...

Journal: :Annual review of physiology 2008
Simina M Popa Donald K Clifton Robert A Steiner

Neurons that produce gonadotropin-releasing hormone (GnRH) reside in the basal forebrain and drive reproductive function in mammals. Understanding the circuitry that regulates GnRH neurons is fundamental to comprehending the neuroendocrine control of puberty and reproduction in the adult. This review focuses on a family of neuropeptides encoded by the Kiss1 gene, the kisspeptins, and their cogn...

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