[Radiation sterilization of intraocular lenses].

Based on the experimental results the conclusion is drawn on the possibility to sterilize intraocular lenses made of polymethylmethacrylate by irradiation in clinical conditions. Recommendations for clinical testing are given.

[Effect of propolis on Staphylococcus aureus strains resistant to antibiotics].

The activity of propolis and its combinations with antibiotics against antibiotic resistant strains of Staphylococcus aureus was studied. It was found that staphylococcae strains resistant to benzylpenicillin, tetracycline and erythromycin were mainly sensitive to propolis. It is concluded that there was synergism in the effect of propolis and antibiotics with respect to antibiotic resistant strains of Staphylococcus aureus.

[Method of determining the antimicrobial activity of alcohol extracts of propolis].

It is proposed to determine the antimicrobial activity of propolys alcohol extracts by the method of subsequent dilutions in solid nutrient media. Dilution of the extracts immediately in hot agar eliminated the inhibiting effect of the extragent on the microbial growth. Opalesence appearing in the agar did not prevent estimation of the results in contrast to the method of subsequent dilutions in liquid nutrient media.