The Effect of Acute Hiperthermia on Levels of Hsp70 and Lipid Peroxidation in Laboratory-Cultured Pulmonate Mollusk Stagnicola corvus

Resumo

This study evaluates dynamic changes in levels of Hsp70s and products of lipid peroxidation due to hyperthermia in the laboratory-raised freshwater pulmonate mollusk Stagnicola corvus (Gmelin, 1791). It is concluded that acute hyperthermia in S. corvus leads to the activation of nonspecific mechanisms of stress adaptation, which is manifested in an elevated Hsp70s level in the beginning of exposure, followed by a reduction in protein concentration, and the further preservation of the Hsp70 at a level exceeding the constitutive forms. At the same time, the level of LPO products tends to decrease, which indicates strengthening of the antioxidant defense processes in response to stress.