NIU Yuhan;ZHAO Yicong;JU Xiaowei;LI Yuan;CHEN Suzhi;REN Meifang;LI Yongzhang;TAN Jinchuan;YANG Fengwen;Graduate School,Hebei University of Chinese Medicine;Hebei Provincial Hospital of Chinese Medicine;Objective:To investigate the mechanism of Jinji Huashi Granules(金鸡化石颗粒) in improving calcium oxalate nephrolithiasis in mice based on the adenosine monophosphate-activated protein kinase(AMPK)/nuclear factor erythroid 2-related factor 2(Nrf2)/heme oxygenase-1(HO-1) signaling pathway. Methods:A total of sixty male C57 BL/6J mice were randomly divided into a normal group,a model group,a potassium sodium hydrogen citrate granules group,and low-,medium-,high-dose groups of Jinji Huashi Granules,with 10 mice in each group. Except for the normal group,the other 50 mice were injected with glyoxylic acid to establish the calcium oxalate nephrolithiasis model. The normal and model group were given distilled water by gavage,while the group of potassium sodium hydrogen citrate granules(1.58 g·kg~(-1)·d~(-1)) and the low-,medium-,high-dose groups of Jinji Huashi Granules(9.43,18.85,and 37.70 g·kg~(-1)·d~(-1)) were administered the corresponding drugs by gavage,once a day for 2 consecutive weeks. The serum levels of serum creatinine(Scr) and blood urea nitrogen(BUN) in mice were detected after the last administration. Von Kossa staining was used to assess renal crystal deposition in mice. Hematoxycin-eosin(HE) staining was performed to observe the renal pathological changes. Terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling(TUNEL) was adopted to assess apoptosis in renal tissue cell. Enzyme-linked immunosorbent assay(ELISA) was used to detect the expression levels of superoxide dismutase(SOD),malondialdehyde(MDA),urine neutrophil gelatinase-associated lipid carrier protein(NGAL) and kidney injury molecule 1(Kim-1). Immunohistochemistry(IHC) was used to detect the expression levels of interleukin-6(IL-6),monocyte chemoattractant protein-1(MCP-1),osteopontin(OPN) and cell differentiation antigen 44(CD44) in the kidneys of mice. Western blot was used to detect the expression levels of AMPK,phosphorylation(p)-AMPK,Nrf2,HO-1,OPN and CD44. Results:Compared with the normal group,the renal pathological damage in the model group was severe,the number of crystal accumulation,renal tissue cell apoptosis,urinary levels of NGAL,Kim-1 and serum levels of Scr and BUN were increased(P<0.01),the expression levels of MDA,IL-6,MCP-1,OPN and CD44 in the kidneys of mice were increased(P<0.01),and the expression levels of SOD,p-AMPK/AMPK,Nrf2 and HO-1 were decreased(P<0.01). Compared with the model group,the group of all dose groups of Jinji Huashi Granules and potassium sodium hydrogen citrate granules exhibited reduction in the number of renal calcium oxalate crystal deposits,the number of renal tissue cell apoptosis,the urinary levels of NGAL and Kim-1,and the serum levels of Scr and BUN(P<0.01). The renal pathological damage was significantly alleviated,the expression levels of MDA,IL-6,MCP-1,OPN and CD44 in the kidneys of mice were decreased(P<0.05 or P<0.01),and the expression levels of SOD,p-AMPK/AMPK,Nrf2 and HO-1 were increased(P<0.05 or P<0.01). Conclusion:Jinjihuashi Granules may inhibit the formation of calcium oxalate nephrolithiasis by activating the AMPK/Nrf2/HO-1 signaling pathway to improve renal oxidative stress and alleviate crystalline kidney injury.
2026 02 v.50;No.279 [Abstract][OnlineView][Download 2644K]