We studied the reparative and antioxidant effects of thymogen (10 and 100 μg/kg) and its modifications in equimolar doses (12 and 120 μg/kg) obtained by attaching the amino acid D-alanine (D-Ala) to the N- or C-terminus of the peptide molecule. A single intraperitoneal injection of hydrazine hydrochloride caused a decrease in catalase activity and an increase in molondialdehyde (MDA) concentration. Administration of peptides in lower doses inhibited LPO and stimulated reparative regeneration of hepatocytes. Thymogen analogue with D-Ala at the C-terminus was most effective. Increasing the doses of thymogen (100 μg/kg) and its analogues (120 μg/kg) did not lead to further increase in their hepatoprotective activity.
Authors
Chulanova, A A; Smakhtina, A M; Mal, G S; Bobyntsev, I I; Smakhtin, M Yu; Mishina, E S; Kopeykin, P M; Bogomolova, E G