Full Composition Granules Of Huanglian (Rhizoma Coptidis) Decrease The Serum Monocyte Chemotactic Protein-1 And Connective Tissue Growth Factor Levels And Inhibit Kidney Nuclear Factor-Kappa B Expression In Rats With High-Fat Diet-Induced Diabetes

OBJECTIVE: To investigate the efficacy of the full composition granules of Huanglian (Rhizoma Coptidis) (FGC) on the serum monocyte chemotactic protein-1 (MCP-1) and connective tissue growth factor (CTGF) levels and kidney nuclear factor-kappa B (NF-kappa B) expression in rats with high-fat diet-induced diabetes.METHODS: Diabetes was induced in rats by feeding a high-fat chow combined with intravenous streptozotocin injection. Forty diabetic SpragueDawley rats were randomly assigned to a normal group (NG), model group (MG), irbesartan group (IG), and low-, middle-, and high-dosage FGC groups (LFGC, MFGC, HFGC), with eight rats per group. The IG rats received 31.25 mg.kg(-1)d(-1) irbesartan tablets, whereas those in the LFGC, MFGC, and HFGC were administered 52, 312.5, and 625 mg.kg(-1).d(-1) FGC, respectively. After 12 weeks, bodyweight (BW), left kidney weight (KW), hemoglobin A1c (HbA1c), serum creatinine (Scre), blood urea nitrogen (BUN), and serum MCP-1 and CTGF levels were determined, pathological changes of the kidney were recorded, and kidney NF-kappa B p65 (A) expression was measured.RESULTS: The 24-h urine albumin and levels of HbA1c, Scre, BUN, and serum MCP-1 and CTGF were significantly increased in in the MG compared with the NG, as was the kidney NF-kappa B (p65) expression (P < 0.05). Furthermore, clear pathological changes in kidney fibrosis were observed in the MG rats. Following irbesartan and FGC administration, the 24-h urine albumin and the levels of HbA1c, Scre, and serum MCP-1 and CTGF were significantly decreased in FCG groups compared with those in the MG, which is in agreement with the change in the kidney NF-kappa B (p65) expression, whereas the similarly significant decrease only exist in 24-h urine albumin and the levels of serum CTGF after irbesartan administration. Hematoxylin-eosin (HE) staining results indicated that the fibrosis observed in the MG samples was alleviated through FGC treatment.CONCLUSION: FGC may alleviate potential kidney injury by decreasing the serum MCP-1 and CTGF levels and inhibiting NF-kB expression in diabetic nephropathy in rats with high-fat diet-induced diabetes. (C) 2021 JTCM. All rights reserved.