Cysteine peptidase and its inhibitor activity levels and vitamin E concentration in normal human serum and colorectal carcinomas

Figure 2 Changes in cysteine peptidases and their inhibitor activities and vitamin E concentration in patients with colorectal cancer in comparison with controls. A: Healthy individuals (control); B: Patients with primary neoplasms; C: Patients with cancer before operation and chemotherapy; D: Patients operated once after chemotherapy; E: Patients with non operative cancer and metastases (A) Cysteine peptidase activities (U/mL) (B) level of vitamin E (ng/mL) (C) vitamin E concentration (ng/mL).