Astragaloside IV ameliorates renal injury in db/db mice.

Astragaloside IV ameliorates renal injury in db/db mice.
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黄芪甲苷 IV 可改善 db/db 小鼠的肾损伤

DOI:
10.1038/srep32545
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发表时间:
2016-09-02
期刊:
影响因子:
4.6
通讯作者:
Li S
Li S
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Sun H;Wang W;Han P;Shao M;Song G;Du H;Yi T;Li S

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糖尿病肾病是糖尿病的致命并发症,也是慢性肾脏疾病的主要类型。AKT信号转导通路及其下游信号转导通路的异常,包括mTOR、NFκB和ERK1/2,在糖尿病肾病的发生发展中起重要作用。黄芪甲苷是黄芪的主要成分之一,对1型糖尿病小鼠有肾脏保护作用。本研究旨在探讨饮食补充AS-IV对2型糖尿病模型db/db小鼠肾脏损伤的保护作用。结果表明,给予AS-IV可减少db/db小鼠的蛋白尿,改善肾小球和肾小管的病理改变,降低尿NAG、NGAL和转化生长因子-β-1的水平。AS-IV还可减弱糖尿病相关的Akt/mTor、NFκB和ERK1/2信号通路的激活,而不会引起任何可检测到的肝毒性。综上所述,这些发现表明AS-IV对2型糖尿病肾病是有益的,这可能与抑制Akt/mTor、NFκB和ERK1/2信号通路有关。
Diabetic nephropathy is a lethal complication of diabetes mellitus and a major type of chronic kidney disease. Dysregulation of the Akt pathway and its downstream cascades, including mTOR, NFκB, and Erk1/2, play a critical role in the development of diabetic nephropathy. Astragaloside IV is a major component of Huangqi and exerts renal protection in a mouse model of type 1 diabetes. The current study was undertaken to investigate the protective effects of diet supplementation of AS-IV on renal injury in db/db mice, a type 2 diabetic mouse model. Results showed that administration of AS-IV reduced albuminuria, ameliorated changes in the glomerular and tubular pathology, and decreased urinary NAG, NGAL, and TGF-β1 in db/db mice. AS-IV also attenuated the diabetes-related activation of Akt/mTOR, NFκB, and Erk1/2 signaling pathways without causing any detectable hepatotoxicity. Collectively, these findings showed AS-IV to be beneficial to type 2 diabetic nephropathy, which might be associated with the inhibition of Akt/mTOR, NFκB and Erk1/2 signaling pathways.
黄芪甲苷 IV 通过上调超氧化物歧化酶 1 水平减轻缺氧引起的大鼠心肌细胞损伤
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