Micropelement balance and homeostasis parameters as prognostic criteria for digestive tract cancer progression

Interaction between chemical compound of biological substrates (hair, tumor tissue) and laboratory and clinical parameters was determined for detecting progression of gastrointestinal tract cancer. The content of microelements such as zinc, copper, selenium, iron, iodine, mercury, cadmium, lead, arsenic and chromium in hair and epithelial lesions was estimated by the method of inversion voltamperometry. Fifty-four patients with stage I-IV cancer and 20 patients with benign tumors of the stomach, colon and rectum were examined. Mineral compound of papillomas was studied in 14 patients. The control group consisted of 74 healthy subjects. The study results showed that the level of CD95 on blood leukocytes was significantly increasing as the tumor was growing (r = 0,48; p 6+ levels in hair and tumor tissue (r = 0,54; p