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不同月龄大鼠胰岛细胞衰老及胰岛素表达的研究 被引量:3

Age-related changes in cell senescence and insulin expression of pancreatic islets
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摘要 目的:探讨不同月龄大鼠胰岛细胞衰老的情况及胰岛素的表达。方法:40只大鼠分为4组:新生大鼠组、1个月大鼠组、6个月大鼠组、24个月大鼠组,取大鼠胰腺,行β-半乳糖苷酶(SA-β-Gal)染色并检测胰岛内p16的表达以反映胰岛细胞衰老,检测胰岛内胰岛素的表达。结果:随年龄增长,胰岛内p16表达增加,分别为:新生组0;1月组0.00267±0.01534;6月组0.05290±0.01787;24月组0.24526±0.03191(P<0.01)。β-Gal染色阳性(阳性率、着色面积、着色深浅程度)增加也与增龄相关,新生组大鼠胰岛β-Gal染色均为阴性,其它各组阳性率1月组为2%,6月组为15%,24月组为100%(P<0.01)。着色面积1月组为0.040,6月组为0.218,24月组为2.118。着色程度1月组为0.04,6月组为0.18,24月组为2.41。结论:随年龄增长,胰岛细胞衰老增加,胰岛素表达减少。
出处 《中国病理生理杂志》 CAS CSCD 北大核心 2009年第1期180-182,共3页 Chinese Journal of Pathophysiology
基金 广东省自然科学基金资助项目(No.5008346)
关键词 胰岛 细胞衰老 半乳糖苷酶类 胰岛素 Islets of Langerhans Cell aging Galactosidases Insulin
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共引文献3

同被引文献30

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