期刊文献+

Ghrelin对脂肪细胞糖代谢及胰岛素敏感性的影响 被引量:1

下载PDF
导出
摘要 目的观察Ghrelin对3T3-L1脂肪细胞葡萄糖代谢和胰岛素敏感性的影响,并探讨其机制。方法体外培养3T3-L1前脂肪细胞,诱导分化为成熟的脂肪细胞,然后加入不同浓度Ghrelin作用24h,采用2-脱氧-3H-D葡萄糖摄入法,测定葡萄糖转运率;RT-PCR检测不同浓度Ghrelin作用24h后CAPmRNA的表达。结果10-9mol/LGhrelin作用24h,对基础状态及胰岛素刺激下,SW872脂肪细胞葡萄糖摄取率无影响;10-8~10-6mol/LGhrelin作用24h使基础状态及胰岛素刺激下SW872脂肪细胞葡萄糖摄取率分别增加30%vs28.6%、42.3%vs38.8%、48%vs48.4%。10-9mol/LGhrelin作用24h,对脂肪细胞CAPmRNA的表达无影响;随着Ghrelin浓度的增加,可促进CAPmRNA的表达。结论Ghrelin通过cb1/CAP信号途径促进3T3-L1脂肪细胞葡萄糖的转运,从而增加脂肪细胞胰岛素的敏感性。
出处 《南方医科大学学报》 CAS CSCD 北大核心 2009年第8期1677-1679,共3页 Journal of Southern Medical University
基金 深圳市科技和信息局基金(2005143)
  • 相关文献

参考文献2

二级参考文献12

  • 1张绪森,陈同钰,王旭芬.c-myc、Rb及细胞G_1期调控蛋白在乳腺癌中的表达[J].诊断病理学杂志,2004,11(3):159-161. 被引量:11
  • 2Wierup N,Svensson H,Mulder H,et al.The ghrelin cell:a novel developmentally regulated islet cell in the human pancreas.Regul Pept,2002,107:63-69.
  • 3Prado CL,Pugh-Bernard AE,Elghazi L,et al.Ghrelin cells replace insulin-producing β cells in two mouse models of pancreas development.Proc Natl Acad Sci USA,2004,101:2924-2929.
  • 4Korbonits M,Goldstone AP,Gueorguiev M,et al.Ghrelin-a hormone with multiple functions.Front Neuroendocrinol,2004,25:27-68.
  • 5Adeghate E,Ponery AS.Ghrelin stimulates insulin secretion from the pancreas of normal and diabetic rats.J Neuroendocrinol,2002,14:555-560.
  • 6Egido EM,Rodriguez-Gallardo J,Silvestre RA,et al.Inhibitory effect of ghrelin on insulin and pancreatic somatostatin secretion.Eur J Endocrinol,2002,146:241-244.
  • 7Reimer MK,Pacini G,Ahren B.Dose-dependent inhibition by ghrelin of insulin secretion in the mouse.Endocrinology,2003,144:916-921.
  • 8Qader SS,Lundquist I,Ekelund M,et al.Ghrelin activates neuronal constitutive nitric oxide synthase in pancreatic islet cells while inhibiting insulin release and stimulating glucagons release.Regul Pept,2005,128:51-56.
  • 9Salehi A,de la Cour CD,Hakanson R,et al.Effects of ghrelin on insulin and glucagon secretion:a study of isolated pancreatic islets and intact mice.Regul Pept,2004,118:143-150.
  • 10Dezaki K,Hosoda H,Kakei M,et al.Endogenous ghrelin in pancreatic islets restricts insulin release by attenuating Ca2+ signaling in beta-cells:implication in the glycemic control in rodents.Diabetes,2004,53:3142-3151.

共引文献12

同被引文献26

  • 1张新国,杨学军.手术治疗2型糖尿病的突破性进展[J].武警医学,2004,15(12):883-884. 被引量:61
  • 2张新国,杨学军,徐红,韩承新,贾元利,武金虎,张冶.胃旁路手术治疗Ⅱ型糖尿病的体会[J].中华普通外科杂志,2005,20(9):599-599. 被引量:100
  • 3Geloneze B,Tambascia MA,Pilla VF,et al.Ghrelin:a gut-brain hormone:effect of gastric bypass surgery[J].Obesity Surgery,2003,13(1):17-22.
  • 4Kojima M,Hosoda H,Date Y,et al.Ghrelin is a growth-hormone-releasing acylated peptide from stomach[J].Nature,1999,402:656-660.
  • 5Wren AM,Small CJ,Ward HL,et al.The novel hypothalamic peptide Ghrelin stimulates food intake and growth hormone secretion[J].Endocrinology,2000,141:4325-4328.
  • 6Tschop M,Smiley DL,Heiman ML.Ghrelin induces adiposity in rodents[J].Nature,2000,407:908-913.
  • 7Nakazato M,Murakami N,Date Y,et al.A role for Ghrelin in the central regulation of feeding[J].Nature,2001,409:194-198.
  • 8Masuda Y,Tanaka T,Inomata N,et al.Ghrelin stimulates gastric acid secretion and motility in rats[J].Biochem Biophys Res Commun,2000,276(3):905-908.
  • 9Asakawa A,Inui A,Kaga T,et al.Ghrelin is an appetite-stimulatory signal from stomach with structural resemblance to molitin[J].Gastrienter,2001,120 (2):337-345.
  • 10Depoortere I,De Winter B,Thijs T,et al.Comparison of the gastroprokinetic effects of Ghrelin,GHRP-6 and motilin in rats in vivo and in vitro[J].Eur J Pharmacol,2005,515:160-168.

引证文献1

二级引证文献4

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