About the Origin of the Family Allocreadiidae (Trematoda: Plagiorchiida).

The phylogenetic relationships established in the family Allocreadiidae by genetic methods suggest that the center of origin, distribution, and divergence of the studied family is, apparently, eastern regions of Laurasia (the territory of the modern Southeast Asia), from where these trematodes penetrated through the Amur paleomicrocontinent and Beringia to North America and further through Central America to South, as well as through Transbaikalia and Yakutia to the western part of Eurasia.

Harmful Parasitoses on the Russian Southern Far East under Climatic and Demographic Changes.

Progressive expansion of the most hazardous human parasitoses caused by trematodes, cestodes and nematodes has been found on the south of the Russian Far East. Decelerating expansion of the trematode Clonorchis sinensis, an agent of clonorchiasis towards the southern Primorye Territory from the Amur River basin, that began 10-15 years ago, was revealed. A prognosis was made on the activation of the natural foci of clonorchiasis and paragonimiasis.

Evaluation of the Applicability of the Comparatory Method for Species Diagnosis of Unionidae (Bivalvia) by Genetic Analysis.

Five genetically distant groups of mussels possessing high intragroup homogeneity were identified among 65 specimens of 14 East European Unionidae "comparatory species" by genetic analysis of nuclear and mitochondrial markers. By shell morphology other than the shape of the convex contour of the shell, the identified groups correspond to five "taxonomic species" according to Zhadin's classification. The use of the comparatory method for Unionidae species identification is unjustified.

[Remodeling of the articular cartilage during the replacement of its defect by a biocomposite material].

The regenerative capacity of articular cartilage was studied in animals in which its defects were replaced by biocomposite materials based on polycaprolactone in combination with hydroxyapatite. Six specimens of the material were used, which consisted of different proportions of these polymers. In the experiment on sheep (n = 6) it was found that these biocomposite materials were replaced by hyaline-like cartilage during healing of artificially created defects in the articular cartilage of the knee joint, while the ratio of composite components had no effect on the quality of the regenerates formed.

[Microbiocenosis of major biotopes of the oral cavity in patients with tongue carcinoma during complex treatment].

The composition of the microflora in three biotopes of the oral cavity was examined in 36 patients with tongue carcinoma before chemotherapy, one - two weeks after two courses of chemotherapy and before gemiglosseklomiya. The oral dysbiosis was revealed in patients before antitumor therapy. The opportunistic and pathogenic bacteria in concentration more than 4 lg CFU/cm² were dominant in microbiocenosis of oral cavity.