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Radix Puerariae and Fructus Crataegi mixture inhibits renal injury in type 2 diabetes via decreasing of AKT/PI3K.

Radix Puerariae and Fructus Crataegi mixture inhibits renal injury in type 2 diabetes via decreasing of AKT/PI3K.
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Chen Z, Yuan Y, Zou X, Hong M, Zhao M, Zhao Y, Liu Y, Li G, Zhu Y, Luo L, Bao B, Bu S,


Chen Z, Yuan Y, Zou X, Hong M, Zhao M, Zhao Y, Liu Y, Li G, Zhu Y, Luo L, Bao B, Bu S, (click to view)

Chen Z, Yuan Y, Zou X, Hong M, Zhao M, Zhao Y, Liu Y, Li G, Zhu Y, Luo L, Bao B, Bu S,

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BMC complementary and alternative medicine 2017 09 0817(1) 454 doi 10.1186/s12906-017-1945-3
Abstract
BACKGROUND
Radix puerariae (RP) is a herbal medicines for diabetes, mainly because of anti-oxidative, insulin resistance and hypoglycemic effect. Fructus crataegi (FC) also possesses strong antioxidant activity in vitro. This study focused on the effects of herbal mixture of RP and FC (RPFC) on renal protection through a diabetic rat model.

METHODS
Type 2 Diabetic model was established with high fat diet followed by injecting rats a low dose of STZ (25 mg/kg body weight). Rats were randomly divided into five groups: normal, high fat diet, diabetes mellitus, high fat diet plus RPFC prevention, and RPFC prevention before diabetes mellitus. RPFC was given to rats daily by intragastric gavage. The blood bio-chemical index and renal pathological changes were examined. The later includes hematoxylin and eosin staining, periodic acid schiff staining, and Masson trichrome staining. Protein levels of were determined by Western blot and immunohistochemical staining. mRNA levels were detected by RT-PCR.

RESULTS
Rats prevented with RPFC resulted in decreasing blood glucose with corresponding vehicle treated rats. Glomerulus mesangial matrix expansion, renal capsule constriction, and renal tubular epithelial cell edema were less severe following RPFC prevention. Moreover, RPFC prevention reduced protein levels of PI3K, AKT, α-SMA and collagen IV in the kidney of diabetic rats.

CONCLUSION
Combined prevention with RPFC may inhibit the PI3K/AKT pathway in the kidney, thereby prevent renal injury in diabetic rats.

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