期刊文献+

断奶前后仔猪小肠组织中生长素mRNA表达及内源性生长抑素的作用 被引量:4

Expression of ghrelin mRNA in duodenum and jejunum of weaning piglets and the role of endogenous somatostatin
在线阅读 下载PDF
导出
摘要 选取新生仔猪18窝,随机分为试验组和对照组。自12日龄起,对照组饲喂基础乳猪料,试验组在基础日粮中添加120 mg/kg半胱胺,以耗竭内源性生长抑素。试验组和对照组均于35日龄断奶。分别在28、35、38、42和45日龄每组各选取6头猪屠宰采样。用RT-PCR方法,以18S rRNA作内标,定量分析空肠和十二指肠中生长素mRNA的表达及内源性SS对其表达的影响。结果表明:(1)十二指肠和空肠中均有生长素mRNA的表达;(2)十二指肠生长素mRNA水平在断奶前后呈逐渐下降趋势,38、45日龄时十二指肠生长素mRNA表达明显低于28、35日龄;45日龄时半胱胺显著提高了十二指肠生长素mRNA表达;(3)空肠生长素mRNA水平在38、42、45日龄时明显低于其他日龄点(P<0.05);38日龄时,半胱胺显著提高了空肠组织中生长素mRNA的表达(P<0.05)。以上结果提示,生长素在小肠黏膜组织中的表达呈年龄依赖性变化趋势,并具有组织特异性;半胱胺可通过耗竭生长抑素来促进小肠黏膜组织中生长素mRNA的表达。 To study the expression of ghrelin mRNA in small intestinal tissue of weaning piglets and to investigate the effect of ghrelin on intestinal growth and functional development,to study the role of endogenous somatostatins as well.18 litters of newborn piglets were divided randomly to control and treatment groups.From 12 days of age,piglets in treatment group were fed starter diet supplemented with 120 mg/kg cysteamine to deplete endogenous somatostatin(SS).Piglets were weaned at 35 days of age(d35) in both g...
出处 《中国兽医学报》 CAS CSCD 北大核心 2008年第9期1043-1046,共4页 Chinese Journal of Veterinary Science
基金 国家重点基础研究发展计划"973"资助项目(2004CB117505) 国家自然科学基金资助项目(30270975)
关键词 生长素 小肠 生长抑素 仔猪 ghrelin intestinal mucosa somatostain piglets
  • 相关文献

参考文献23

  • 1[1]Chang C C,Hung C H,Yen C S,et al.The relationship of plasma ghrelin level to energy regulation,feeding and left ventricular function in non-diabetic haemodialysis patients[J].Nephrol Dial Transplant,2005,20:2172-2177.
  • 2[2]Rubino F,Zizzari P,Tomasetto C,et al.The role of the small bowel in the regulation of circulating ghrelin levels and food intake in the obese Zucker rat[J].Endocrinology,2005,146:1745-1751.
  • 3[3]Kuhn E R,Geelissen S M,Vander G S,et al.The release of growth hormone (GH):relation to the thyrotropic and cortieotropic axis in the chicken[J].Domest Anim Endocrino,2005,29t 43-51.
  • 4[4]Date Y,Kojima M,Hosoda H,et al.Ghrelin,a novel growth hormone-releasing acylated peptide,is synthesized in a distinct endocrine cell type in the gastrointestinal tracts of rats and humans[J].Endocrinology,2000,141:4255-4261.
  • 5[5]Gnanapavan S,Kola B,Bustin S A,et al.The tissue distribution of the mRNA of ghrelin and subtypes of its receptor,GHS-R,in humans[J].J Clin Endoerinol Metab,2002,87:2988.
  • 6[6]Date Y,Nakazato M,Murakami N,et al.Ghrelin acts in the central nervous system to stimulate gastric acid secretion[J].Biochem Biophys Res Commun,2001,280:904-907.
  • 7[7]Dornonville d l C,Lindstrom E,Norlen P,et al.Ghrelin stimulates gastric emptying but is without effect on acid secretion and gastric endocrine cells[J].Regul Pept,2004,120:23-32.
  • 8[8]Trudel L,Tomasetto C,Rio M C,et al.Ghrelin/motilin-related peptide is a potent prokinetic to reverse gastric postoperative ileus in rat[J].Am J Physiol Gastrointest Liver Physiol,2002,282:948-952.
  • 9[9]Edholm T,Levin F,Hellstrom P M,et al.Ghrelin stimulates motility in the small intestine of rats through intrinsic cholinergic neurons[J].Regul Pcpt,2004,121:25-30.
  • 10[10]Nabuurs M J.Weaning piglets as a model for studying pathophysiology of diarrhea[J].Vet Q 20 Suppl,1998,3:42-45.

同被引文献99

引证文献4

二级引证文献11

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部