Physical and Chemical Parameters in Assessment of Metabolic Profiles of Patients With B

Objective: To study catalytic properties of lactate dehydrogenase (LDH) and some physical and chemical characteristics of blood in patients with thermal injuries.Materials and methods: We examined blood samples from 24 patients with contact burns involving 10%-40% of the body surface area and studied erythrocyte LDH activity in forward and reverse reactions, kinetic characteristics of this process, and protein concentration. We used teziocrystalloscopy to evaluate crystallogenic properties of blood serum of the examined patients with thermal injuries.Results: Thermal injuries were shown to cause a 2-fold decrease in LDH activity in the reverse reaction. Analysis of crystallogenic properties of blood serum of the patients with contact burns revealed that development of a complex response to a burn injury is accompanied by a moderate decrease in the structure index and crystallizability and a signifi decrease in the clearity of the marginal protein zone. In case of burn disease, we also observed a decrease in the initiative potential of the biological fl In addition, microscope slides of the dried blood serum revealed a tendency to randomization of the sample similar to that found in crystalloscopic facies.Conclusions: The local thermal effect leading to a complex response to a burn injury was found to cause significant transformation of physical and chemical characteristics of blood. Thermal injuries cause a decrease in LDH activity in the reverse reaction leading to a disturbance of the lactate-to-pyruvate ratio in the cell and significant shifts in the blood serum composition and properties, which are manifested in a significant change in blood serum crystallogenic and initiating properties.