[Chronic hepatitis B in rheumatic diseases: issues of screening and reactivation of infection: A review].

Patients with rheumatic diseases infected with hepatitis B virus (HBV) are difficult to manage not only due to the presence of risk factors for the development and rapid progression of liver cirrhosis, but also due to the likelihood of reactivation of this infection. Despite the successes achieved in the fight against HBV, the virus cannot be completely defeated due to the presence of hidden forms of the disease, escaping the field of vision of a rheumatologist and an infectionist. Based on the results of the analysis of current publications, the paper presents the rationale for a complete immunological screening of patients with rheumatic diseases when prescribing antirheumatic therapy.

Express Diagnostics of Proteolytic Activity of Periodontopathogens-Methodological Approach.

The species spectrum of the oral microbiome is considered to be the key factor in the development and progression of periodontal inflammatory disorders. The “red complex” including Porphyromonas gingivalis, Tannerella forsythia and Treponema denticola has the highest pathogenic potential. These bacteria have several biochemical mechanisms that allow them to colonize and destroy periodontal tissues.

The Role of Interaction with in the Determination of Root Metabolome at Early Stages of AM Symbiosis.

The nature of plant-fungi interaction at early stages of arbuscular mycorrhiza (AM) development is still a puzzling problem. To investigate the processes behind this interaction, we used the MlS-1 line that forms high-efficient AM symbiosis with . AM fungus actively colonizes the root system of the host plant and contributes to the formation of effective AM as characterized by a high mycorrhizal growth response (MGR) in the host plant.

[Alternative approaches to the diagnosis of African swine fever in the Russian Federation in 2017-2021].

Introduction: Prevention and control of African swine fever (ASF) transmission on the territory of the Russian Federation requires monitoring based on testing of samples from pigs and wild boars. Specific anti-ASFV antibodies are rarely detected in samples during routine serological diagnostics. Although, ASF isolates with weakened virulence were confirmed in Russia and neighboring countries.

[Analysis of the whole-genome sequence of an ASF virus (Asfarviridae: Asfivirus: African swine fever virus) isolated from a wild boar (Sus scrofa) at the border between Russian Federation and Mongolia].

Introduction: The causative agent of African swine fever (Asfarviridae: Asfivirus: African swine fever virus) (ASF) is a double-stranded DNA virus of 175-215 nm. To date, 24 of its genotypes are known. Clustering of ASF genotype II isolates is carried out by examining a limited number of selected genome markers.