A combination of valsartan and nifedipine controlled-release tablets in DN patients with hypertension can effectively control blood glucose and blood pressure, improve the serological indexes such as COMP, TM, mAlb, Ang-1, Hcy, CysC, TGF-β1, APN, ALD and ghrelin, and potentially reduce and delay renal function damage. The gene discussed is ANGPT1; the disease is hypertensive disorder.