GSTM1 and Abnormal renal physiology: Compared with the control group, SBP, DBP, pulse pressure, blood urea nitrogen (BUN), Scr, uric acid (UA), 24-h urine protein quantitation (24hUPro) and intact parathyroid hormone (iPTH) levels of the renal dysfunction group were higher, while eGFR, hemoglobin (Hb), 25(OH)D3 and 25(OH)D2 were lower (P < 0.05 for all).