نتایج جستجو برای: ژن kiss1

تعداد نتایج: 16558  

2017
Sareh Zeydabadi Nejad Fahimeh Ramezani Tehrani Azita Zadeh-Vakili

Context Kisspeptin (KISS1), a recently discovered neuropeptide that acts upstream of gonadotropin-releasing hormone (GnRH) neurons, is critical for maturation and function of the reproductive axis. This review aimed at providing comprehensive and up-to-date information on Kisspeptin and its role in female reproduction. Evidence Acquisition A literature review was performed using PubMed for al...

Journal: :Human reproduction update 2011
K J Teerds D G de Rooij J Keijer

BACKGROUND The increase in the incidence of obesity has a substantial societal health impact. Contrasting reports have been published on whether overweight and obesity affect male fertility. To clarify this, we have reviewed published data on the relation between overweight/obesity, semen parameters, endocrine status and human male fertility. Subsequently, we have used results obtained in anima...

2015
SHUJIE CHENG VICTOR CASTILLO ISAAC ELIAZ DANIEL SLIVA

Renal cell carcinoma (RCC) is a common urological cancer worldwide and is known to have a high risk of metastasis, which is considered responsible for more than 90% of cancer associated deaths. Honokiol is a small-molecule biphenol isolated from Magnolia spp. bark and has been shown to be a potential anticancer agent involved in multiple facets of signal transduction. In this study, we demonstr...

جان احمدی, مهیار, خزعلی, همایون, محمودی, فریبا,

زمینه و هدف: مسیرهای عصبی داخل هیپوتالاموسی نوروپپتید Y (NPY)، اپیوئیدها و کیس­پپتین از مهم­ترین تنظیم­ کننده­‌های فعالیت تولیدمثلی هستند. مرفین بیان ژن NPY و کیس­پپتین (Kiss1) را کاهش می­دهد. در حالی که کیس­پپتین یا نالوکسون اثرات تحریکی بر بیان ژن NPY  اعمال می­‌کنند. در این تحقیق نقش مسیر کیس­پپتین/GPR54 در میانجیگری اثرات مرفین بر بیان ژن NPY در هیپوتالاموس موش­های صحرایی  نر بررسی شد. روش‌...

2013
Dong Hong Li Pin

To explore the possible mechanism of KiSS1 in control GnRH secretion participate in sexual development onset and normal reproduction regulation by investigate the changes of expression of KiSS1, GnRH in hypothalamus and LH, FSH, E2 in serum,by using RNA interference Mediated with Lentivirus-based Vectors, after Interfering expression of KiSS1. Constructed the eukaryotic expression plasmid of ra...

ژورنال: طب جنوب 2017
میرزاپور, طوبا, وزیری, حمیدرضا, پورشریف, آزاده,

زمینه: ناباروری به عدم توفیق زوجین در باروری پس از یک سال مقاربت‌های منظم و بدون بهره‌گیری از روش‌های کنترل بارداری اطلاق می‌شود. توانایی باروری در پستانداران با بلوغ و به واسطه ترشح هورمون‌های ضروری گنادوتروپین‌ها (GnRH) صورت می‌گیرد. پروتئین Kisspeptin (محصول ژن KISS1) وگیرنده آن (KISS1R) به عنوان یک تنظیم کننده حیاتی در ادغام سیگنال‌های مرکزی و محیطی با آزادسازی GnRH می‌باشند. در این مقاله ا...

Journal: :Trends in neurosciences 2007
Alexander S Kauffman Donald K Clifton Robert A Steiner

Neurons that produce gonadotropin-releasing hormone (GnRH) drive the reproductive axis, but the molecular and cellular mechanisms by which hormonal and environmental signals regulate GnRH secretion remain poorly understood. Kisspeptins are products of the Kiss1 gene, and the interaction of kisspeptin and its receptor GPR54 plays a crucial role in governing the onset of puberty and adult reprodu...

2013
Donna Cvetković Andy V. Babwah Moshmi Bhattacharya

Kisspeptins (KP), peptide products of the kisspeptin-1 (KISS1) gene are the endogenous ligands for a G protein-coupled receptor (GPCR) - KP receptor (KISS1R). KISS1R couples to the Gαq/11 signaling pathway. KISS1 is a metastasis suppressor gene and the KP/KISS1R signaling has anti-metastatic and tumor-suppressant effects in numerous human cancers. On the other hand, recent studies indicate that...

Journal: :molecular and biochemical diagnosis (journal) 2014
hamidreza vaziri zahra sayar roya faraji

background: the kiss peptins and its receptor g protein coupled receptor (gpr54) or kiss1 receptor system are being described as key signaling molecules for reproductive function in animal models and humans. they play essential roles in regulation of the hypothalamic- pituitary- gonadal (hpg) axis and the onset of puberty and fertility. objective: this study was performed to delineate the assoc...

2016
Zhan-long Shen Bo Wang Ke-wei Jiang Chun-xiang Ye Cheng Cheng Yi-chao Yan Ji-zhun Zhang Yang Yang Zhi-dong Gao Ying-jiang Ye Shan Wang

The progression of distant metastasis cascade is a multistep and complicated process, frequently leading to a poor prognosis in cancer patients. Recently, growing evidence has indicated that deregulation of microRNAs (miRNAs) contributes to tumorigenesis and tumor progression in colorectal cancer (CRC). In the present study, by comparing the miRNA expression profiles of CRC tissues and correspo...

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