[Use of Fundamental Properties of Embryonic Objects for Studying Potential Environmental Effects of Technogenic Impacts].

This article analyzes the problems of biosafety in terms of individual development patterns. Previously, the key role of epigenetic free radical processes in normal embryonic development of lower vertebrates in the formation of the competence and determination of embryonic primordia has been demonstrated, and a significant increase in the intensity of free radical process before every qualitative change in homeostatic mechanisms in developing organisms was found: in induction systems, before hatching of the embryo from the shells, and in preparation for metamorphosis. Thus, the activation of free radical processes in embryonic primordia corresponds to instability and characterizes the “critical periods of development” and increased sensitivity of the embryo to environmental impacts.

[Free-radical reactions in Daphnia after low doses of γ-irradiation in vivo].

A violation of free-radical reactions has been found by the method of free-radical copolymerization in the two groups of Daphnia magna exposed to 100 and 1000 mGy of gamma-rays and their non-exposed first generation progeny. The method is based on a quantitative radiometric registration of the polymerization process that develops in the cells of a multicellular organism in tissue in proportion to the existing number of free radicals. The fact of the increased level of free radicals may be indicative of the hereditary transgenerational effect and the cause of lower survival of Daphnia in both generations.

[On some features of embryonic development and metamorphosis of Aurelia aurita (Cindaria, Scyphozoa)].

Aurelia aurita is a cosmopolite species of scyphomedusae. Its major structural patterns and life cycle are well investigated. This work provides a detailed study on development and structure of the planula in A.

[The evaluation of the embryotoxicity of the aqueous environment].

A highly sensitive express method has been proposed for assessment of embryotoxicity of the aqueous medium under the conditions of anthropogenic pollution. Amphibian embryos were used as test objects for estimating the level of free radical processes during adaptation stress. The method can be used under the field conditions and is proposed as a part of ecological monitoring of natural waters.

[The therapeutic efficacy of transfusions of erythrocyte mass in anemia in patients with internal diseases].

The results of the overtime combined clinico-laboratory investigations have evidenced a high medical effectiveness of red blood cell pack transfusions in the treatment of anemia in patients with varying diseases of internal organs.