Abstract:Objective To explore the effect of Astragalus injection combined with Valsartan on urine leucine arylamidase (LAP) and podocalyxin (PCX) in treating diabetic nephropathy. Methods The 74 diabetic nephropathy patients in our hospital from May 2014 to May 2015 were randomly divided into control group (37 cases) and Astragalus-treated group (37 cases). The control group received conventional diabetes treatment with Valsartan. Astragalus-treated group was treated with Chinese herbal medicine Astragalus injection in addition to the treatment for the control group. The clinical results and urine LAP and PCX levels were compared. Results The total effective rate of the Astragalus-treated group (86.5%) was significantly higher than that of the control group (64.9%; χ2 = 4.702, P < 0.05). The efficacy of the Astragalus-treated group was better than that of the control group (u = 2.913, P < 0.01). The 24-h urinary protein, urine albumin and serum creatinine levels of the Astragalus-treated group were significantly reduced compared to those of the control group (t = 3.744, 12.752 and 2.949; P < 0.01). In the control group, the LAP level significantly decreased after treatment (t = 3.812, P < 0.05), but the PCX level only slightly decreased after treatment without significant difference (t = 2.591, P > 0.05). In the Astragalus-treated group, the LAP and PCX levels after treatment significantly decreased compared with pre-treatment ones (t = 7.694 and 9.312; P < 0.01). LAP and PCX levels after treatment had significant differences between the two groups (t = 7.803 and 5.693; P < 0.01). Conclusions Astragalus combined with Valsartan has better clinical efficacy than Valsartan alone for the treatment of diabetic nephropathy. It can effectively reduce urinary levels of LAP and PCX and improve the clinical symptoms. It has considerable value in the clinical application.