GSTM1 and thalassemia: Additionally, myocardial enzyme indicators, including creatine kinase (CK), CK-MB, and lactate dehydrogenase (LDH), as well as liver function indicators such as alkaline phosphatase (ALBP) and renal function indicators like creatinine (CREA), demonstrated significant differences in the Hb H group compared to the normal group and other thalassemia groups.