Descriptive characteristics of occupational exposures and medical follow-up in the cohort of workers of the Siberian Group of Chemical Enterprises in Seversk, Russia.

Purpose: To date, only a few studies have examined long-term health risks of exposures in the uranium processing industry and reported contradictory results, necessitating further research in this area. This is the first description of a cohort of ∼65,000 uranium processing workers (20.6% women) of the Siberian Group of Chemical Enterprises (SGCE) in Seversk, Russia, first employed during 1950-2010.

Molecular Relationships between Bronchial Asthma and Hypertension as Comorbid Diseases.

Comorbidity, a co-incidence of several disorders in an individual, is a common phenomenon. Their development is governed by multiple factors, including genetic variation. The current study was set up to look at associations between isolated and comorbid diseases of bronchial asthma and hypertension, on one hand, and single nucleotide polymorphisms associated with regulation of gene expression (eQTL), on the other hand.

The bank of biological samples representing individuals exposed to long-term ionizing radiation at various doses.

Collection and storage of biological specimens in biobanks aims to obtain and preserve samples of different kinds for biological and medical studies. Here we present a description of the Bank of Biological Materials (BBM) housed by the Seversk Biophysical Research Centre (SBRC; Seversk, Russia). The main goal of maintaining the BBM is to collect and store biological samples suitable for genetic studies of people exposed to long-term ionizing radiation.

The risk of acute myocardial infarction and arterial hypertension in a cohort of male employees of a Siberian Group of Chemical Enterprises exposed to long-term irradiation.

During the period from 1998 to 2007, a prospective cohort study of acute myocardial infarction morbidity cases as well as a "case-control" study of arterial hypertension was carried out. The risk of acute myocardial infarction was assessed as well as arterial hypertension; the dose-response relationship and the role of radiation in the mechanism of acute myocardial infarction as well as arterial hypertension development were studied. As a result of this study, a statistically significant increased risk of acute myocardial infarction among the male staff at the Siberian Group of Chemical Enterprises [standardized relative risk = 1.

Association between TP53 gene ARG72PRO polymorphism and chromosome aberrations in human cancers.

It is well known that the TP53 gene considerably influences on DNA repair processes. Polymorphisms in the TP53 gene, particularly the well-known Arg72Pro in codon 72 of exon 4 (Ex4+119 G>C; rs1042522), can modify the functionality of the p53 protein and activation of DNA repair. Actually, polymorphic variants Arg and Pro were found to have different properties of regulation of TP53-dependent DNA repair target genes, that can effect various levels of chromosome aberrations in cancer patients with these genotypes.