The influence of the L-ascorbate 1-(2-hydroxyethyl)-4,6-dimethyl-1,2-dihydropyrimidine-2-one on the regeneration of Girardia tigrina planarians

The effect of the L-ascorbate 1-(2-hydroxyethyl)-4,6-dimethyl-1,2-dihydropyrimidine-2-one on blastema regeneration in Girardia tigrina planarians was investigated. It was established that the preparation has low toxicity towards planarians, which is evidenced by its CL50 values (lethal concentration). The results of the vital computer morphometry and flow cytofluorometry confirm that L-ascorbate 1-(2-hydroxyethyl)-4,6-dimethyl-1,2- dihydropyrimidine-2-one induces regeneration at high concentrations only: 0.01 g/100 mL, 0.05 g/100 mL, and 0.1 mg/100 mL. Low concentrations of the preparation have no influence on blastema regeneration in planarians.