GSTM1 and acute kidney injury: The liver function then deteriorated markedly during a new episode of haemolysis (Hb 6.4 g/dL), causing AKI and consequently increasing the MELD score to 31 and the MELD-Na score to 33 (Bilirubin 7.9 mg/dL; International Normalized Ratio, INR, 2.06; Creatinine 2.46 mg/dL).