Reduced Introgression of Sex Chromosome Markers in the Mexican Howler Monkey ( × ) Hybrid Zone.

Interspecific hybridization allows the introgression or movement of alleles from one genome to another. While some genomic regions freely exchange alleles during hybridization, loci associated with reproductive isolation do not intermix. In many model organisms, the X chromosome displays limited introgression compared to autosomes owing to the presence of multiple loci associated with hybrid sterility or inviability (the "large X-effect").

[Anti-VEGF dosing regimen for neovascular age-related macular degeneration treatment].

antivasoproliferative therapy is a revolutionary option in the therapy of Neovascular Age-related Macular Degeneration (nAMD). In addition to the problem of choosing an anti-VEGF drug, it is equally important to choose the mode of its intravitreal administration. The basic dosing regimen is fixed monthly intravitreal injections.

[Macular pigments in retinal degenerative processes].

Macular pigments (MP) - carotenoids, which determine the structure of the central part of the retina, play an important role in the work of its foveolar part. The main function of MP is to maintain full functionality of the macular area of the retina, which is based on the possibility of reducing color aberrations in the absorption of blue light and patients' ability for dark adaptation. Epidemiological studies have revealed a direct correlation between the low MP and the increased risk of developing age-related macular degeneration.

[Experience of organ spare sialolitiasis treatment using sialoendoscopy].

The aim of the study was to evaluate the effectiveness of organ spare sialolitiasis treatment by sialoscopy-guided techniques. The study included 317 patients with parotid and submandibular sialolitiasis. In 22 patients conventional surgical approach was used because of distal location and larger size of concrements, while in 295 miniinvasive sialoscopy-guided procedures were performed.

[Osteostimulating effect of bone xenograft on bone tissue regeneration].

The aim of experimental case-control study performed in 28 dogs divided in 2 groups was to assess local tissue reactions on bone xenograft transplantation; dynamics of bone remodeling and formation at the site of bone defect wall contacting with bone xenograft; dynamics and mechanisms of xenograft remodeling. Transplantation of xenograft in conventional bone defects did not cause inflammatory of destructive reactions because of high biocompatibility of the material. At transplantation site active fibrous bone trabeculae formation filling the spaces between xenograft participles was observed.