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  • Title: Nephroprotective effects of Isaria felina in rats with adenine-induced chronic renal failure.
    Author: Yang X, Zhang S, Ren L, Zhang H, Bai X.
    Journal: J Pharm Pharmacol; 2013 Sep; 65(9):1409-18. PubMed ID: 23927479.
    Abstract:
    OBJECTIVE: Chronic renal failure (CRF) is a progressive, life-threatening condition with limited treatment options. Cordyceps sinensis is a fungus that has nephroprotective effects, and Isaria felina (IF) is a fungus isolated from C. sinensis fruiting bodies. We evaluated IF efficacy using an adenine-induced CRF animal model. METHODS: Forty male Sprague-Dawley rats were divided into normal control (n = 8) and adenine groups (n = 32; 100 mg/kg for 30 days). The adenine group was subdivided into a model control group (n = 7), a positive control group (200 mg/kg Jinshuibao capsule (JSB; n = 8), and two IF groups (200 mg/kg, n = 8; 100 mg/kg, n = 8). After treatment for 30 days, animals were narcotized and abdominal aortic blood was analysed. Kidney functions were evaluated. KEY FINDINGS: Higher serum creatinine, blood urea nitrogen and uric acid levels, and lower creatinine clearance was observed in the model control group compared with JSB and IF groups (P < 0.05). Red blood cell count, haemoglobin and haematocrit levels in the 200 mg/kg IF group were higher than in the model control group (P < 0.05). Transforming growth factor-β1 mRNA expression in the model control group was higher than the normal control and 200 mg/kg IF groups (P < 0.05). Epidermal growth factor mRNA in the model control group was lower than in the normal control and both IF-treated groups (P < 0.05). Structural renal damage was observed in all adenine-treated rats, but was less severe in the JSB and IF groups. CONCLUSION: IF may reverse the damaged kidney functions-induced with adenine in rats.
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