[Maxillofacial diseases prevalence among patients of working age living in the Republic of Tatarstan].

The aim of the study was to analyze temporary disability cases among the patients suffering from maxillofacial diseases who were treated in dental medical centers over the 2007 to 2016 period. There were determined groups of incapacitating or disabling maxillofacial diseases among adults living in the Republic of Tatarstan: inflammatory (odontogenic and nonodontogenic), traumatic, benign and malignant neoplasms, secondary adentia as a result of tooth loss, as well as diseases associated with teeth eruption. The major part of temporary disability cases is due to odontogenic inflammatory maxillofacial diseases (66.

[Changes in ageing pace and major immune parameters among individuals with long exposure to hydrogen sulfide].

The authors revealed increase in ageing pace, higher level of pro-inflammatory cytokine Interleukin-8 and apoptosis marker (p53 protein) in individuals with chronic exposure to gas containing hydrogen sulfide. The immune parameters studied could serve as markers of premature ageing in individuals engaged into gas extraction.

[Characteristics of cytokine state and processes of apoptosis under the influence of the combine action of production factors of the gas producing enterprise].

People exposed to chronic influence of hydrogen sulphide gas demonstrate accelerated aging, increase of proinflammatory cytokine interleukin-8 level and the marker of apoptosis protein p53. Researched immunologic indices can serve as markers of premature aging in persons involved in gas producing enterprise.

[Development of bacteriophage Mu in E. coli gyrBts mutant strain].

The study deals with Mu growth in cells carrying a temperature-sensitive mutation in the gene of DNA gyrase B subunit. At a nonpermissive temperature the Mu growth is shown to be blocked in the host gyrB ts mutant both on infection and on prophage induction. Mu DNA does not get integrated in the host chromosome upon the infection of mutant cells, as demonstrated by DNA-DNA hybridization experiments.