两栖和爬行类生长及生长激素分泌活动的调节.PDFVIP

4 1 生命科学研究 Vol. 4 No. 1 2000 3 Life Science Research M ar.2000 : 1007-7847(2000) 01-0007-07 a 肖　东,林浩然 ( , 510275) : 根据生长内分泌学,综述了近年来两栖和爬行类生长激 ( H) 分泌活动的调节及生 长激 在两栖爬行类生长中作用这 一研究领域所取得的主要成就和研究进展. 研究结果表 明: 在脊椎动物的进化过程中, H 的化学结构和功能是相当保守的; H 对两栖爬行类的生 长起促进作用;类胰岛 生长因子( I Fs)也能部分传递 H 促进两栖类的生长;在两栖爬行 类, 下丘脑对 H 分泌的调控较哺乳类缺乏特异性;利用外源 H 促进两栖爬行类的生长和 发育有广阔的应用前景. : 两栖爬行类; 生长; 生长激 ;神经内分泌因子; 甲状腺激 : 45; 418: Q Q A Regulation of Growth and Growth Hormone Secretion in Amphibians and Reptiles XIAO Dong, LIN Hao-ran ( College of Life Sciences, Zhongshan University, uangzhou 510275, uangdong, China) Abstract: T he recent research on the regulation of growth and growth hormone secre- tion in amphibians and reptiles is reviewed. Recent studies show the structure and func- tion of growth hormone ( H) is highly conserved among vertebrate species including the amphibians and reptiles Functional studies support a growth promoting rolefor H. in amphibians and reptiles. T he H-somatomedin (insulin-like growth factor, I F) ax- is is present in herpetofauna Hypothalamic regulation of H secretion in herpetofauna. is generally less specific than in mammals, a situation that is also found in fishes and birds. There are great applied prospects in promotion of growth and development through exogenous growth hormone in amphibians and reptiles. Key words :amphibians and reptiles; growth; growth hormone; neuroendocrine factors; thyroid hormones , ( rowth hormone, H) a : 1999-07-01; : 1999-07-27 : ( 1968-) , , , , 4 ,T el:020 Fax:020( 1934-) , ,, , , , . 2000 8 . H , H [ 13] ;, H H [2,4] . ,, , ; , .10 , ; ,, . , .