Genetic outline of the hermeneutics of the diseases connection phenomenon in human.

The structure of diseases in humans is heterogeneous, which is manifested by various combinations of diseases, including comorbidities associated with a common pathogenetic mechanism, as well as diseases that rarely manifest together. Recently, there has been a growing interest in studying the patterns of development of not individual diseases, but entire families associated with common pathogenetic mechanisms and common genes involved in their development. Studies of this problem make it possible to isolate an essential genetic component that controls the formation of disease conglomerates in a complex way through functionally interacting modules of individual genes in gene networks.

Expression of the NUP153 and YWHAB genes from their canonical promoters and alternative promoters of the LINE-1 retrotransposon in the placenta of the first trimester of pregnancy.

The placenta has a unique hypomethylated genome. Due to this feature of the placenta, there is a potential possibility of using regulatory elements derived from retroviruses and retrotransposons, which are suppressed by DNA methylation in the adult body. In addition, there is an abnormal increase in the level of methylation of the LINE-1 retrotransposon in the chorionic trophoblast in spontaneous abortions with both normal karyotype and aneuploidy on different chromosomes, which may be associated with impaired gene transcription using LINE-1 regulatory elements.

Database of Amphibia distribution in West Siberia (Russia).

Background: West Siberia is a large region in North Eurasia, which harbours multiple climatic zones, landscape types and biomes. Its amphibian fauna is characterised by a combination of European and Asian species. For many species, this region is the place where the limits of their global ranges are located (, , ).

[Treatment of ischemic penile and scrotum gangrene].

Gangrene of the penis is a rare condition manifesting with purulent necrotization of penile tissues and systemic inflammatory response. In more than 90% of cases, the cause of the development of the penile and scrotal gangrene is rapidly progressive necrotizing fasciitis of polymicrobial etiology, which predominantly affected the external genital organs. Isolated cases of penile gangrene development when using the restraining rings of the penis are described in literature (condom urine collection bag, rings for erection, etc.