Effect of erythropoietin on the content of lipid peroxidation products in lymphocytes in experimental thermal injury

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Abstract

Aim. To investigate the effect of different concentrations of erythropoietin on the content of lipid peroxidation products in lymphocytes isolated from the blood of rats with thermal injury.

Methods. The study was performed on 22 white male rats. Thermal injury of IIIA degree on 4% of body surface area was simulated by immersion in water at a temperature of 98-99 °C. After 24 hours, blood lymphocytes were isolated and the content of the primary (diene conjugates), secondary (ketodienes and conjugated trienes) and final products (Schiff bases) of lipid peroxidation were determined spectrophotometrically. Erythropoietin was added to lymphocytes at concentrations of 0.01; 0.1 and 1 IU/ml.

Results. It was found that 24 hours after thermal injury there were the accumulation of primary, secondary and final products of lipid peroxidation in isopropanol fraction of lipid extracts of peripheral blood lymphocytes. Addition of erythropoietin to the rat lymphocytes resulted in a controversial change in the content of lipid peroxidation products: an increase in the heptane fraction, decrease - in the isopropanol fraction of lipid extract of lymphocytes. In the heptane fraction erythropoietin (at concentrations of 0.01, 0.1, and 1 IU/ml) increased the content of primary, end (at a concentration of 0.1 IU/ml) and secondary (at a concentration of 1 IU/ml) lipid peroxidation products. In isopropanol fraction erythropoietin reduced the content of primary (at concentrations of 0.01, 0.1, and 1 IU/ml), final (at concentrations of 0.01 and 0.1 IU/ml) and secondary (at concentrations of 0.01 and 1 IU/ml) products of lipid peroxidation.

Conclusion. It was found that there is an accumulation of lipid peroxidation products in the isopropanol fraction of lipid extract of lymphocytes isolated from peripheral blood of rats with thermal injury; erythropoietin application at concentrations of 0.01; 0.1 and 1 IU/ml increases the content of lipid peroxidation products in heptane fraction and decrease in the isopropanol fraction of lipid extract of lymphocytes.

About the authors

M V Osikov

South Ural State Medical University, Chelyabinsk, Russia

Author for correspondence.
Email: osaedgalina@mail.ru

E V Simonyan

South Ural State Medical University, Chelyabinsk, Russia

Email: osaedgalina@mail.ru

O T Saedgalina

South Ural State Medical University, Chelyabinsk, Russia

Email: osaedgalina@mail.ru

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© 2015 Osikov M.V., Simonyan E.V., Saedgalina O.T.

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