CAO Wenxuan,XIN Xin,TAN Miao,et al.Effect of Dahuang Xiezhuo Prescription on Renal Interstitial Fibrosis of Rats with 5/6 Nephrectomy by Regulating ROS/TXNIP/NLRP3 Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(21):81-89.
CAO Wenxuan,XIN Xin,TAN Miao,et al.Effect of Dahuang Xiezhuo Prescription on Renal Interstitial Fibrosis of Rats with 5/6 Nephrectomy by Regulating ROS/TXNIP/NLRP3 Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(21):81-89. DOI: 10.13422/j.cnki.syfjx.20221944.
Effect of Dahuang Xiezhuo Prescription on Renal Interstitial Fibrosis of Rats with 5/6 Nephrectomy by Regulating ROS/TXNIP/NLRP3 Pathway
0.01),肾间质发生显著纤维化;与模型组比较,大黄泄浊方各剂量组和尿毒清颗粒组血SCr、BUN、24 h UTP水平均有不同程度降低(
P
<
0.05),TRX、TXNIP、NLRP3、ASC、TGF-
β
、Collagen Ⅳ、
α
-SMA和FN蛋白显著降低(
P
<
0.01),肾间质纤维化不同程度改善。
结论
2
大黄泄浊方可保护慢性肾衰竭大鼠肾功能、延缓肾间质纤维化。
Abstract
Objective
2
To observe the effect of Dahuang Xiezhuo prescription on the changes in renal pathology and reactive oxygen species (ROS)/thioredoxin-interacting protein (TXNIP)/NOD-like receptor protein 3 (NLRP3) pathway expression in the kidney tissues of rats with 5/6 nephrectomy, and to explore the mechanism of Dahuang Xiezhuo prescription in protecting renal function and delaying renal interstitial fibrosis and the possibility.
Method
2
Ninety healthy male SD rats were randomly divided into a sham operation group, a model group, low, medium, and high-dose (6.825, 13.65, 27.30 g·kg
-1
) Dahuang Xiezhuo prescription groups, and a Niaoduqing granule group (2.60 g·kg
-1
). Except the sham operation group, 5/6 nephrectomy was used to replicate the rat model of chronic renal failure (CRF). After modeling, each administration group was given the corresponding dose of drug suspension by intragastric administration, once a day for consecutive 8 weeks. After administration, serum creatinine (SCr) and urea nitrogen (BUN) levels and 24 h urinary protein quantification (UTP) levels were detected. Western blot assay was used to detect the protein expressions of thioredoxin (TRX), TXNIP, and NLRP3. The protein expressions of TRX, TXNIP, NLRP3, apoptosis-associated speck-like protein containing a CARD (ASC), transformation growth factor-
β
(TGF-
β
), Collagen Ⅳ,
α
-smooth muscle actin (
α
-SMA), and fibronectin (FN) were detected by immunohistochemistry.
Result
2
As compared with the sham operation group, serum levels of SCr, BUN, and UTP in the model group were increased (
P
<
0.05), TRX, TXNIP, NLRP3, ASC, TGF-
β
, Collagen Ⅳ,
α
-SMA, and FN proteins were increased (
P
<
0.01), and renal interstitial fibrosis significantly occurred. As compared with the model group, the levels of SCr, 24 h BUN, and UTP in the low, medium, and high-dose Dahuang Xiezhuo prescription groups and the Niaoduqing granule group were decreased to varying degrees (
P
<
0.05), TRX, TXNIP, NLRP3, ASC, TGF-
β
, Collagen Ⅳ,
α
-SMA, and FN were decreased (
P
<
0.01), and renal interstitial fibrosis was improved to varying degrees.
Conclusion
2
Dahuang Xiezhuo prescription can protect renal function and delay renal interstitial fibrosis in rats with CRF.
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