In the erythrocyte lysate of AP patients, about a 3-fold increase was observed in the activities of total SOD (SOD1 + SOD2 + SOD3) and Cu/Zn SOD (SOD1 + SOD3) and nearly a 2-fold increase in SOD2 (MnSOD) activity compared to healthy subjects. Here, SOD3 is linked to alkaline phosphatase measurement.