In our study, in the CKD+ group, as compared to the CKD– group, we detected lower values of eGFR (36 ± 21.44 mL/min/1.73 m2) and Hb, and higher levels of CRP, PTH, NT-proBNP, uric acid, and urea protein to creatinine ratio. The gene discussed is GSTM1; the disease is chronic kidney disease.