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1.河南中医药大学 第一附属医院,儿科医学院,郑州 450000
2.北京中医药大学,北京 100029
贾评评,硕士,主治医师,从事中西医防治肾脏病的研究,E-mail:374751170@qq.com
宋纯东,博士,主任医师,教授,博士生导师,从事肾小球疾病的中西医诊治机制研究,E-mail:scd670918@126.com
收稿日期:2022-05-20,
网络出版日期:2022-08-05,
纸质出版日期:2023-01-05
移动端阅览
贾评评,宋纯东,段凤阳等.益气养阴活血方对糖尿病肾病大鼠NLRP3/Caspase-1/GSDMD细胞焦亡通路的影响[J].中国实验方剂学杂志,2023,29(01):75-81.
JIA Pingping,SONG Chundong,DUAN Fengyang,et al.Effect of Yiqi Yangyin Huoxue Prescription on NLRP3/Caspase-1/GSDMD Pyroptosis Pathway in Diabetic Kidney Disease Rats[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(01):75-81.
贾评评,宋纯东,段凤阳等.益气养阴活血方对糖尿病肾病大鼠NLRP3/Caspase-1/GSDMD细胞焦亡通路的影响[J].中国实验方剂学杂志,2023,29(01):75-81. DOI: 10.13422/j.cnki.syfjx.20221945.
JIA Pingping,SONG Chundong,DUAN Fengyang,et al.Effect of Yiqi Yangyin Huoxue Prescription on NLRP3/Caspase-1/GSDMD Pyroptosis Pathway in Diabetic Kidney Disease Rats[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(01):75-81. DOI: 10.13422/j.cnki.syfjx.20221945.
目的
2
基于NOD样受体蛋白3(NLRP3)/胱天蛋白酶-1(Caspase-1)/消皮素D(GSDMD)细胞焦亡通路,探讨益气养阴活血方防治糖尿病肾病(DKD)肾脏损伤的可能作用机制。
方法
2
随机将50只雄性SD大鼠分为正常组8只、造模组42只。造模组高糖高脂饮食6周后予一次性腹腔注射链脲佐菌素(STZ)诱导建立DKD大鼠模型。造模成功后随机分为模型组、缬沙坦组(8.33 mg·kg
-1
)、益气养阴活血方低、高剂量组(11、22 g·kg
-1
)。连续灌胃6周后检测各组大鼠空腹血糖(FBG)、总胆固醇(CHO)、甘油三酯(TG)、血尿素氮(BUN)、血肌酐(SCr)及24 h尿蛋白定量(24 h-UTP);苏木素-伊红(HE)染色观察肾组织病理形态学变化;酶联免疫吸附测定法(ELISA)检测血清白细胞介素-1
β
(IL-1
β
)、白细胞介素-18(IL-18)水平;蛋白免疫印迹法(Western blot)、实时荧光定量聚合酶链式反应(Real-time PCR)检测各组大鼠肾组织NLRP3/Caspase-1/GSDMD蛋白及其mRNA表达水平。
结果
2
与正常组比较,模型组大鼠FBG、CHO、TG、BUN、SCr、24 h-UTP及血清IL-1
β
、IL-18水平均显著升高(
P
<
0.01),肾组织病变程度严重,且肾组织NLRP3/Caspase-1/GSDMD蛋白及其mRNA表达水平显著升高(
P
<
0.01);与模型组比较,各药物组FBG、CHO、TG、BUN、SCr、24 h-UTP及血清IL-1
β
、IL-18水平均明显下降(
P
<
0.05,
P
<
0.01),肾组织病变程度得到改善,且肾组织NLRP3/Caspase-1/GSDMD蛋白及其mRNA表达水平明显降低(
P
<
0.05,
P
<
0.01),以益气养阴活血方高剂量组效果最佳。
结论
2
益气养阴活血方可通过调控NLRP3/Caspase-1/GSDMD通路抑制细胞焦亡,缓解DKD大鼠炎症反应,减轻肾脏病理损伤。
Objective
2
To explore the possible mechanism of Yiqi Yangyin Huoxue prescription in the prevention and treatment of kidney injury of diabetic kidney disease(DKD)rats based on NOD-like receptor protein 3(NLRP3)/cysteine protease-1(Caspase-1)/gasdermin D (GSDMD)pyroptosis pathway.
Method
2
Fifty male SD rats were randomly divided into normal group (
n
=8) and modeling group (
n
=42). The modeling group was given a one-time intraperitoneal injection of streptozotocin (STZ) after high-sugar and high-fat diet for 6 weeks to induce the establishment of a DKD rat model. After successful modeling, the rats were randomly divided into model group, valsartan group (8.33 mg·kg
-1
), and Yiqi Yangyin Huoxue prescription low-dose and high-dose group (11,22 g·kg
-1
). After continuous gavage for 6 weeks, the fasting blood glucose (FBG), total cholesterol (CHO), triglyceride (TG), blood urea nitrogen (BUN), serum creatinine (SCr) and 24-hour urine protein quantification (24 h-UTP) were detected in each group of rats. Hematoxylin-eosin (HE) staining was used to observe the pathological changes of kidney tissue. Enzyme-linked immunosorbent assay (ELISA) was used to detect serum interleukin-1
β
(IL-1
β
) and interleukin-18 (IL-18) levels. The protein and mRNA expression levels of NLRP3/Caspase-1/GSDMD in kidney tissue of rats in each group were determined by Western blot and real-time quantitative polymerase chain reaction (Real-time PCR).
Result
2
Compared with the conditions in normal group, the levels of FBG, CHO, TG, BUN, SCr, 24 h-UTP and serum IL-1
β
and IL-18 as well as the protein and mRNA expression levels of NLRP3/Caspase-1/GSDMD in kidney tissue in model group were increased (
P
<
0.01), and the kidney tissue lesions were severe. Compared with the conditions in model group, the levels of FBG, CHO, TG, BUN, SCr, 24 h-UTP and serum IL-1
β
and IL-18 as well as the protein and mRNA expression levels of NLRP3/Caspase-1/GSDMD in kidney tissue in each intervention group were decreased (
P
<
0.05,
P
<
0.01), and the degree of kidney tissue lesions was improved, with Yiqi Yangyin Huoxue prescription high-dose group showing the optimal effect.
Conclusion
2
Yiqi Yangyin Huoxue prescription could inhibit pyroptosis by regulating the NLRP3/Caspase-1/GSDMD pathway, and thus relieve the inflammatory response of DKD rats and alleviate the pathological damage of the kidneys.
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