[Use of porous polytetrafluoroethylene prostheses in reconstructive reoperations in patients with occlusive lesions of the aorta and arteries of the lower limbs].

The use of a new domestic vascular prosthesis "Vitaflon" in reconstructive reoperations on 21 patients was clinically estimated. The positive properties of the prosthesis such as high biological inertia, good plastic properties, strength and reliability allow this prosthesis to be recommended for using in reconstructive reoperations on the vessels.

[State of the progeny of the 1st generation conceived at different times after low-dose irradiation of female rats].

The relation between the antenatal and early postnatal ontogenesis of the progeny and the degree of maturity of oocytes at the time of the whole single gamma-irradiation with doses of 0.25, 0.5 and 1 Gy was studied on 473 first pregnant Wistar rats and 1402 rats of the first generation.

[The antistaphylococcal activity of thionium in in vitro experiments].

The paper deals with the experimental study of antistaphylococcal properties of thionium--a derivative of bis-quarternary ammonium compounds. High bactericide activity of the preparation is revealed as a result; it is preserved under high contents of protein substances in the media. The sensitivity of staphylococcal strains to thionium is not affected by the initial sensitivity of microorganisms to antibiotics.

[Antimicrobial effect of irradiation with ionized plasma].

Ion plasma light flux has been found to possess bacteriostatic effect in vitro and in vivo. Three-fold irradiation with ion plasma of a wound infected by a pathogenic Staphylococcus aureus strain reduced phase I of wound healing by three days and the overall time of healing by four-five days.

[Mutagenic effects of ionized plasma light flux].

The effect of ion plasma light flux on the genomes of auxotrophic Escherichia coli strain and Drosophilla melanogaster has been examined. Essentially no mutagenic effect was found in doses close to therapeutic ones.