[Stability of serum immunoglobulin conformation in various tumors]. / Ustoichivost' konformatsii syvorotochnykh immunoglobulinov pri nekotorykh opukholiakh.

As shown by means of temperature-perturbation differential spectrophotometry blood serum immunoglobulins G from patients with gastric cancer and with some other tumors were more resistant to 2 M urea as compared with the immunoglobulins from healthy volunteers and patients with gastric ulcerous disease. The resistance of IgG conformation was altered in the course of gastric cancer treatment.