GSTM1 and anemia (phenotype): Analysis showed normocytic normochromic anemia (Hb 6 g/dL), metabolic acidosis, elevation of ESR (88 mm/first hour) and CRP (3.87 mg/dL), increased serum urea (171 mg/dL) and creatinine (7.7 mg/dL), nonnephrotic proteinuria (484 mg/24 h), haematuria, and leukocyturia without cellular casts.