G蛋白偶联受体54 mRNA在雌性性早熟大鼠下丘脑中的表达及其意义

被引:6
作者
刘方
林汉华
刘小辉
夏治
机构
[1] 华中科技大学同济医学院附属同济医院儿科
关键词
G蛋白偶联受体54mRNA; 性早熟; 青春期; 大鼠;
D O I
暂无
中图分类号
R725.8 [小儿内分泌腺疾病及代谢病];
学科分类号
摘要
目的检测GPR54在雌性性早熟大鼠下丘脑中的表达,探讨其在真性性早熟发生发展过程中的作用。方法正常5日龄雌性大鼠40只。随机分为4组,每组10只。实验1组和2组大鼠皮下一次注射300μg达那唑以诱导真性性早熟;检查阴道涂片、体质量及子宫、卵巢质量,用化学发光法测其血清黄体生成素水平;半定量RT-PCR法检测下丘脑GPR54 mRNA表达水平。结果GPR54 mRNA在青春前期组、性早熟青春早期组及性早熟青春中期组大鼠中的表达呈逐渐上升趋势,各组差异具有显著性(F=467.55 P<0.01)。性早熟青春早期组与正常青春早期组GPR54表达无显著性差异(P>0.05)。结论GPR54在性早熟启动和发展过程中可能起重要作用。
引用
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页码:1375 / 1376+1397 +1397
页数:3
相关论文
共 16 条
[1]  
KiSS-1and GPR54as new players in gonadotropin regulation and puberty. Kaiser UB,Kuohung W. Endocrine . 2005
[2]   儿童性早熟的研究进展 [J].
蔡德培 .
实用儿科临床杂志, 2005, (06) :497-499
[3]  
Advanced vaginal opening and precocious activation of the reproductive axis by kiss-1 peptide, the endogenous ligand of GPR54. Navarro V,Fernandez R,Castellano J, et al. J Physiol . 2004
[4]  
AXOR12, a novel human G protein-coupled receptor, activated by the peptide KiSS-1. Muir AI,Chamberlain L,Elshourbagy NA,et al. Biological Chemistry . 2001
[5]  
GPR54 and puberty. Colledge,W.H. Trends in Endocrinology and Metabolism . 2004
[6]  
Kisspeptins and GPR54-the new biology of the mammalian GnRH axis. Aparicio SA. Cell Metab . 2005
[7]  
Increased hy-pothalamic GPR54signaling:a potential mechanismfor initia-tion of puberty in pri mates. Shahab M,Mastronardi C,Seminara SB,et al. Proceedings of the National Academy of Sciences of the United States of America . 2005
[8]  
Regulation of the neuroendocrine reproductive axis by kisspeptin-GPR54 signaling. Smith JT,Clifton DK,Steiner RA. Reproduction . 2006
[9]  
Discovery of a receptor related to the galanin receptors. DK Lee,T Nguyen,GP O’Neill,R Cheng,Y Liu,AD Howard,N Coulombe,CP Tan,AT Tang-Nguyen,SR George. FEBS Letters . 1999
[10]  
Hypogonadotropic hy-pogonadismdue to loss of function of the KiSS1-derived pep-tide receptor GPR54. de Roux N,Genin E,Carel JC,et al. Proceedings of the National Academy of Sciences of the United States of America . 2003