[Influence of exogenous embryonic fibroblasts on collagen type I and type III ratio in the tissues of paraprosthetic capsule (experimental work)].

Nowadays, the use of synthetic prosthesis is obligatory method in surgical treatment of large and giant ventral hernias. We have fulfilled comparative investigation of the dynamics of collagen Type I to Type III ratio in paraprosthetic region in mice when using implants, Esphyl - polyethylene, Ecophlon - polytetrafluorethylene, and Uniflex - polyvinylidenfluoride, with a one- and two-time introduction of cultured fibroblasts into paraprosthetic region at different times after implantations and without the introduction. Use of Sirius Red dye staining and polarization microscopy revealed that, in short period (10 days after endoprosthesis implantation), the implication of fibroblasts and the number of implications did not affect the collagen Types ratio.

[Comparative morphology of tissues when using polypropylene and polytetrafluoretilen prostheses].

The synthetic mesh is widely used for treatment of hernias. We conducted a comparative study of the morphological pattern of inflammation, the cellular composition of tissues and dynamics of scar formation in mice when using implants "Esfil" and "Unifleks" under influence of single and double injection of cultured fibroblast and without such injection to the region of stents location. A more pronounced inflammatory reaction during the study period of investigation was observed in the case of "Esfil".

[Current status and tasks of sanitary-protozoological studies of drinking water (review of the literature)].

Occurrences of giardiasis in the USA, Canada, Great Britain and other countries caused by drinking water were noted. Necessity of sanitary-and-protozoological inspection of the drinking water in the USSR was demonstrated.