Fifteen days after the onset of hemolysis and thrombocytopenia laboratory values were returning to normal: Hb: 12,1 g/dl, Hct: 38,2%, platelets: 151 × 103 cells/μl, LDH: 255 U/l, creatinine: 1,5 mg/dl, BUN: 78 mg/dl. This evidence concerns the gene GSTM1 and Thrombocytopenia.