Objective To observe the changes and clinical significance of macrophage migration inhibitory factor(MIF),Toll like receptor 4(TLR4) and tumor necrosis factor-a(TNF-α) levels in patients with diabetic nephropathy.Methods 77 cases of diabetic nephropathy were selected from the Department of internal medicine,Shiyan Taihe Hospital,Hubei Province from May 2012 to April 2015.According to the urine albumin and creatinine ratio(urinary A/C),they were divided into 2 groups,urinary A/C less than or equal to 300 mg/...