SOD2 and alkaline phosphatase measurement: Furthermore, in the plasma of non-smoking and smoking AP patients with the GC, GG, and GG genotypes, a decrease in the SOD2 concentration (for non-smokers p = 0.0143, p = 0.0022, and p = 0.0050 and for smokers p = 0.0356, p = 0.0225, and p = 0.0317, respectively) was demonstrated in contrast to healthy subjects (Figure 2c,d).