[Deheterochromatinization of the chromatin in old age induced by oligopeptide bioregulator (Lys-Glu-Asp-Pro)].

In this work is presented the data on the variability of the functional characteristics of the chromosomes in the cells exposed by oligopeptide bioregulator - Prostamax from old individuals (75-86 years). Evaluated: the frequency of sister chromatid exchanges (SCE); Ag-positive NORs (in associations and nonassociations), as well as the variability of the structural C-pericentromeric heterochromatin. Prostamax changed the chromosomal parameters: 1) increased the frequency of SCE to 12,0±0,28 exchange in per cell (in intact cells - 5,9±0,2); 2) increased the frequency of Ag-positive NORs to 2.5 per cell (in intact cells - 0.95) 3) reduced in the frequency of large segments of the options from the pericentromeric heterochromatin for the 1st and 9th chromosomes. Comparison of the results indicates the ability of Prostamax to decondensation, deheterchromatinization the chromatin during aging, and thus release by heterochromatinization repressed genes. On the other hand, the data obtained in this work suggest that the basis for the protective action of Prostamax its modifying effect on chromatin.

[Healing activity of the oil extract of tea leaf].

At the department of organic chemistry and chemical technology oil extraction of tea leaf has been received (conditionally EM ChL). Pharmacological action of the medicine EM ChL has been studied on the models of linear and plane wounds, thermal and chemical burns of a skin in white rats. As a drug of comparison Aekol has been used in the comparable doses according to the recommendations of pharmacological committee (registration number 87/295/3). Effect of drug EM ChL on the consolidation of wound scar was studied in the purebred white male with the weight range of 120-140 gr. For tensiometry the device adapted for determination of the module of elasticity of gum BH-5307 has been used. Using the model of linear wound, stimulating effect of the preparation EM ChL on the healing process has been shown using tensiometry and hystological data. The preparation accelerates the healing process of the wound.