Involvement of serum retinoids and Leiden mutation in patients with esophageal, gastric, liver, pancreatic, and colorectal cancers in Hungary

Figure 1 Prevalence of Leiden mutation in patients with different gastrointestinal tumors. The number in abscissa indicates the number of patients (600 healthy blood donors used as control).

Figure 2 Correlation between the prevalence of Leiden mutation and serum level of vitamin A (A) and zeaxanthin (B) as well as between serum levels of vitamin A and zeaxanthin (C) in patients with different GI tumors. n indicates the number (in parenthesis) of examined patients.