Renoprotective Effect of Tang-Shen-Ning and Its Influence on Notch/Snail1 Pathway in Diabetic Nephropathy KKAy Mice
10.11842/wst.2017.06.027
- VernacularTitle:糖肾宁对糖尿病肾病KKAy小鼠的肾脏保护作用及其对Notch/Snail1信号转导通路的影响
- Author:
Guannan YANG
1
;
Zongjiang ZHAO
;
Xinxue ZHANG
;
Meijuan YANG
Author Information
1. 北京中医药大学中医学院 北京100029
- Keywords:
Diabetic nephropathy;
Tangshenning;
consumptive kidney disease;
KKAy mice;
epithelial-mesenchymal transdifferentiation of renal tubular epithelial cells;
Notch/snail1 pathway
- From:
World Science and Technology-Modernization of Traditional Chinese Medicine
2017;19(6):1057-1065
- CountryChina
- Language:Chinese
-
Abstract:
This paper was aimed to study the renal protective effect of Tang-Shen-Ning (TSN) on diabetic nephropathy (DN) KKAy mice by inhibiting the Notch/snail1 signal transduction pathway.A total of 30 KKAy mice,which were fed with mice-dedicated food for 10 weeks and with the blood glucose over 16.7 mmol· L-1,24-hour urinary albumin larger than 0.4 mg,were made into the DN model.The DN mice were randomly divided into the model group,irbesartan group and TSN group according to their blood glucose and weight.Intragastric administration of medication was given.A total of 10 female C57BL/6J mice were selected as the control group.The general condition,body weight and 24-hour urinary protein quantitation were detected.After 16-week intervention,mice were sacrificed.Levels of blood glucose,blood urea nitrogen (BUN) and serum creatinine (Scr) were detected.HE and Mallory staining were applied to renal tissues.In situ hybridization (ISH) and western blotting were used to detect the Notch/snail 1 pathway,α-SMA,E-Cadherin protein and mRNA expression in renal tissues.Statistical analysis was made by SPSS20.0 software.The results showed that compared with the model group,the rats' general conditions were improved;body weight and 24-hour urinary protein quantitation were significantly decreased (P＜0.01);contents of BUN and Scr were reduced (P＜0.01,P＜0.05).The pathological staining showed significantly reduction on renal interstitial fibrosis.The Notch/snail1 pathway,protein and mRNA expression of α-SMA were significant reduced with statistical significance (P＜0.01);protein and mRNA expression of E-Cad protein were significant increased with statistical significance (P＜0.01).It was concluded that TSN can protect the renal function of DN,delay the disease progression of DN,and inhibit epithelial-mesenchymal transdifferentiation (EMT) of renal tubular epithelial cells and renal interstitial fibrosis.Furthermore,the inhibition on EMT may be through the regulation of the Notch/snail1 pathway.
