IGF-1对急性肾功衰竭的治疗作用研究
THE THERAPEUTIC EFFECT OF INSULIN-LIKE GROWTH FACTOR-I IN ACUTE RENAL FAILURE
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关键字:胰岛素样生长因子-I;急性肾功衰竭
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中文摘要
目的:探讨胰岛素样生长因子I(IGF-I)对急性肾功能衰竭(ARF)的治疗作用。方法:建立大鼠缺血性急性肾衰竭模型,Wistar大鼠48只随机分成三组:假手术对照组(n=16),IARF组32只夹闭双肾动脉45min建立IARF模型(n=32),其中随机分16只为IGF-I组:每日皮下注射rhIGF-I一次(250ng.kg-1)。观察内生肌酐清除率(Ccr),24h尿蛋白,β2-MG,血、尿 IGF-I,血栓素B2(TXB2),6-酮-前列腺素 F1(6-keto-PCF1α)水平及肾脏组织形态学改变。结果:缺血后IARF组Ccr显著下降,24h尿蛋白,β2-MG下降,血、尿TXB2及肾重/体重增高,6-Keto-PGF1及尿 IGF-1水平降低,与对照组相比差异显著。 IGF-I组 Ccr升高,且较快恢复到对照水平;24 h尿蛋白,β2-MG及血、尿TXB2下降,6-keto-PGF1及尿IGF-I水平增高;肾组织学观察肾小管损伤程度减轻,肾小管上皮再生恢复快。结论:IGF-I能改善 IARF肾功能,减轻肾小管损伤程度,促进肾小管上皮再生恢复。
参考文献
1 Gerard T, Denis N, Jacqueline Z, et al. Distribution of epidermal growth factor in the kidneys of rats exposed to amikacin[J]. KidneyInt, 1991, 40: 691
2 Hammerman M. The growth hormone-insulin-like growth factor ax-is in kidney[J]. Am J Physiol, 1989, 257: 503
3 Rogers SA, Miller SB. Hammerman MR Growth hormone stimulatesIGF-I gene expression in isolated rat renal collecting duct[J]. Am JPhysiol, 1990, 259: 474
4 Zumkeller W, Schofield PN.The role of insulin-like growth factorsand IGF-binding proteins in the physiological and pathological pro-cesses of the kidney [J] J. Virchows Archly B Cell Pathol, 1992, 62:207
5 Hirschberg R, Kopple J .Evidence that insulin-like growth factor Iincreases renal plasma flow and glomerular filtration rate in fastedrats[J]. J Clin Inverst, 1989, 83: 326
6 Humes HD, thes TF, Cieslinsk DA, et al .Effects of transforminggrowth factor-βtransforming growth factor, and other growth factorson renal proximal tubule cells[J]. Lab Invest, 1991, 64: 538
7 Rogers SA, Ryan G,Hammerman MR. Insulin-like growth factors Ⅰand Ⅱare produced in the metanephros and are required for growth and development in vitro [J]. J Cell Biol, 1991, 113: 1447.
8 Hirschberg R. Mechanisms of IGF-I-induced recevery of proximaltubular cells in primary culture after acute injury [J]. J AM SocNepbol, 1996, 7: 1826
9 Matejka GL, Jennische E. IGF-I binding and IGF-ImRNA expres-sion in the mp-ischdric regenerating rat kidney [J].Kidney Int,1992, 42: 1113
10 Wang S,Hirschberp R. Role of growth factors in acute renal fail-ure[J]. Nephrol Dial Tansplant, 1997, 12: 1560
11 Lelcuk S, Alexander F, Kobzik, et al. Prostacyclin and thrombox-ane A2 moderate postischemic renal failure[J]. Surgery 1985, 98:207
12 Lianos EA.Eicosanoids and the medulation of glomerular immuneinjure[J]. Kidney Int, 1989, 35: 985
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