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目的探讨前列酸类（ＰＧｓ）在表皮生长因子（ＥＧＦ）促进急性肾小管坏死（ＡＴＮ）肾小管修复过程中的作用，研究外源性ＥＧＦ对大鼠庆大霉素（ＧＭ）中毒性ＡＴＮ肾组织ＰＧｓ变化的作用及其与肾小管上皮细胞ＤＮＡ合成的关系。方法Ｗｉｓ－＊ｔａｒ大鼠分为３组：正常对照组（ＮＬ组，ｎ＝７）；ＧＭ组（Ｇ组，ｎ＝２０）：予以ＧＭ２００ｍｇ／ｋｇｘ３ｄ；ＧＭ＋ＥＧＦ组（Ｇ＋Ｅ组，ｎ＝１９）：ＧＭ２００ｍｇ／ｋｇｘ３６＋ＥＧＦ２０ｕｇ、分别在注射后第１、４、８、１２、１５天测定肾小管上皮细胞的３氚－胸腺核苷掺入率（３ＨＴｄＲ）、血清肌酐（Ｓｃｒ）、肾组织前列腺素２（ＰＧＥ２）、前列腺素６酮（６－ｋｅｔｏＰＧＦ１ａ、前列环素（ＴＸＢ２）的含量。结果Ｇ＋Ｅ组动物的３ＨＴｄＲ掺入率均较Ｇ组动物明显增加，以在给药后第４天最为显著。Ｇ＋Ｅ组动物的肾脏病理损害较Ｇ组有所改善，但Ｓｃｒ水平较Ｇ组无差别。Ｇ＋Ｅ组动物肾组织６－ｋｅｔｏ－ＰＧＦ１ａ水平也比Ｇ组明显增高，ＴＸＢ２水平比Ｇ组动物降低。Ｇ＋Ｅ组动物肾组织ＰＧＥ２和６－ｋｅｔｏ－ＰＧＦ１ａ的水平与肾小管上皮细胞的３ＨＴｄＲ掺入率均呈显著正相关。结论（１）ＡＴＮ时肾组织ＰＧＥ２、６－ｋｅｔ?
OBJECTIVE: To investigate the role of PGs in the process of epidermal growth factor (EGF) promoting renal tubule repair in acute tubular necrosis (ATN). To investigate the effect of exogenous EGF on gentamicin (GM) The role of tissue PGs changes and its relationship with DNA synthesis in renal tubular epithelial cells. Methods The GM-EGF group was divided into 3 groups: normal control group (NL group, n = 7); GM group (G group, n = 20) ): GM200mg / kgx36 + EGF20ug, 3Triton-thymosin incorporation (3HTdR), serum creatinine (Scr), renal tissue prostaglandin (PGE2), prostaglandin 6 (6-ketoPGF1a, prostacyclin (TXB2) .Results The 3HTdR incorporation rate of G + E group was significantly higher than that of G group, which was the most obvious on the 4th day The pathological changes of kidney in G + E group were better than those in G group, but there was no difference in Scr between G + E group and G + E group, and 6-keto-PGF1a in G + E group was higher than that in G group. TXB2 level was lower than G group. G + E group PGE2 was kidney and 3HTdR incorporation rate of 6-keto-PGF1a levels and renal tubular epithelial cells showed a significant positive correlation. PGE2,6-ket kidney tissue conclusions (1) ATN?