[Use of a biotesting method to determine the toxicity of medical waste].

Classes B and C medical waste is of particular concern since it is an epidemiological and toxicological hazard. Predisinfection of Class B medical waste with the chemicals that have different toxicity levels, as well as further burial in the urban landfill were a reason for defining its hazard classes by biotesting in order to establish the possibility of additional environmental pollution. Class B (epidemiologically hazardous) medical waste was ascertained to be little dangerous and indangerous to the environment.

[Hygienic assessment of carcinogenic and noncarcinogenic risks of oral intake of drinking water chemical agents].

Based on the quantitative and qualitative determination of drinking water pollution by a large number of substances of varying toxicity and hazard, the authors calculated a possible risks of their adverse impact on the body by the development of carcinogenic and noncarcinogenic effects.

[Effect of local revascularization of choroid on ocular tissues and lipid peroxidation in experimental atherosclerotic chorioretinopathy].

Lipid composition and lipid peroxidation in ocular tissues were assessed in 42 rabbits with hypercholesterolemia. The levels of nonesterified cholesterol, diacylglycerides, nonesterified fatty acids, and of malonic dialdehyde were increased and the content of endogenous antioxidants decreased in animals with experimental atherosclerotic chorioretinopathy. Surgery (local revascularization of the vascular coating with two flaps) resulted in improvement of ocular biochemistry and microcirculation in the posterior segments of the eye and in recovery of the functional intactness of the retina and choroid.