Publications by authors named "Svetlana A Shalnova"

The present study investigates the feasibility of using three previously published genome-wide association studies (GWAS) results on blood lipids to develop polygenic risk scores (PRS) for population samples from the European part of the Russian Federation. Two population samples were used in the study - one from the Ivanovo region ( = 1673) and one from the Vologda region ( = 817). We investigated three distinct approaches to PRS development: using the straightforward PRS approach with original effect sizes and fine-tuning with PRSice-2 and LDpred2.

View Article and Find Full Text PDF

Patients with genetically-based hyperlipidemias exhibit a wide phenotypic variability. Investigation of clinical and biochemical features is important for identifying genetically-based hyperlipidemias, determining disease prognosis, and initiating timely treatment. We analyzed genetic data from 3374 samples and compared clinical data, lipid levels (low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol, triglycerides, and lipoprotein (a)), frequency, age at onset of coronary heart disease (CHD), and the severity of carotid and femoral atherosclerosis (plaque number, maximum stenosis, total stenosis, maximum plaque height, and plaque score) among patients with familial hypercholesterolemia (FH), familial dysbetalipoproteinemia (FD), polygenic hypercholesterolemia (HCL), severe HCL, and those without lipid disorders (n = 324).

View Article and Find Full Text PDF

Familial dysbetalipoproteinemia (FD) is a highly atherogenic, prevalent genetically based lipid disorder. About 10% of FD patients have rare variants associated with autosomal dominant FD. However, there are insufficient data on the relationship between rare variants and FD.

View Article and Find Full Text PDF

SCORE2 (Systematic COronary Risk Evaluation 2) is a risk assessment scale for cardiovascular events, presented in 2021 by the European Society of Cardiology. Both for training and validation of the SCORE2 model, representative samples from the Russian population were not used. Therefore, we aimed to validate SCORE2 on a such sample.

View Article and Find Full Text PDF

Familial dysbetalipoproteinemia (FD) is a highly atherogenic genetically based lipid disorder with an underestimated actual prevalence. In recent years, several biochemical algorithms have been developed to diagnose FD using available laboratory tests. The practical applicability of FD diagnostic criteria and the prevalence of FD in Russia have not been previously assessed.

View Article and Find Full Text PDF

The objective of our study was to assess the impact of regional living conditions on the Russian population's mental health. For the analysis, we used data from the cross-sectional stage of a 2013-2014 study, "Epidemiology of Cardiovascular Diseases in the Regions of the Russian Federation (ESSE-RF)". The final sample included 18,021 men and women 25-64 years of age from 11 regions of Russia.

View Article and Find Full Text PDF

Objective: The goal of our article was to systematise studies that investigated the impact of living conditions in large national regions on individual alcohol consumption.

Methods: The objectives of the scoping review, the criteria and methods for selecting articles were defined in advance and recorded in the protocol PROSPERO CRD42021234874. We sought publications on the research topic in PubMed, Google Scholar, OpenGrey, Crossref and eLibrary databases from the moment they were created until December 31, 2021.

View Article and Find Full Text PDF

The goal of our study was to examine the effects of the regional characteristics of the living environment on individual a priori and a posteriori dietary patterns of the Russian population. For the analysis, we used cross-sectional data from the Epidemiology of Cardiovascular Diseases in the Regions of the Russian Federation study from 2013-2014. The sample included 18,054 men and women 25-64 years of age from 12 regions.

View Article and Find Full Text PDF
Article Synopsis
  • - Cystic fibrosis, phenylketonuria, alpha-1 antitrypsin deficiency, and sensorineural hearing loss are common autosomal recessive diseases that necessitate carrier screening to identify potential gene carriers.
  • - The study involved custom panel genotyping of 3821 participants using real-time PCR and next-generation sequencing to evaluate 115 known pathogenic variants, detecting 38 variants overall.
  • - Real-time PCR was found to be cost-effective and simpler for certain analyses, while next-generation sequencing offered higher accuracy and the ability to identify more variants, also revealing significant differences in allele frequencies among various populations.
View Article and Find Full Text PDF

Unlabelled: In assessing the risk of fractures, an important role is played by risk factors (RFs), the prevalence of which must be known among residents with different types of settlement in order to plan preventive measures in risk groups for fractures. Prevalence RFs varied depending on constituent entities and the settlement type.

Purpose: To investigate the prevalence of osteoporotic fractures (OPF) RFs and estimate absolute risk (AR) of OPF among urban vs rural residents of the Russian Federation.

View Article and Find Full Text PDF

Background: The objective of our study was to investigate the associations of characteristics inherent in large Russian Federation (RF) regions with prevalence, awareness, treatment and control of hypertension at the individual level.

Methods: Regional characteristics were obtained from the official website of the Federal State Statistics Service of the RF. We employed principal component analysis to reduce the dimensionality of data, which allowed defining five integral regional indices.

View Article and Find Full Text PDF

This study aimed to describe the dyslipidemia prevalence and pattern among adult populations from different regions ( = 13) of the Russian Federation (RF). Randomly selected samples ( = 22,258, aged 25-64) were studied according to the ESSE-RF protocol. Lipoprotein parameters were estimated by routine methods.

View Article and Find Full Text PDF
Article Synopsis
  • Hypertension remains a significant health issue in Russia, contributing to high cardiovascular mortality and showing stable mean blood pressure levels among men and a slight decrease among women over the past 40 years.
  • The study analyzed blood pressure data from 14 Russian surveys involving over 137,000 individuals and compared it with data from the USA and England, indicating consistently higher hypertension rates in Russia.
  • Overall, while Russian women's mean systolic blood pressure decreased slightly, the prevalence of hypertension remained stable, contrasting with general global trends of declining blood pressure.
View Article and Find Full Text PDF

Our study evaluated the impact of a wide range of characteristics of large administrative regions on the individual level of cigarette smoking in the Russian adult population. The pool of participants included 20,303 individuals aged 25-64 years. We applied 64 characteristics of the 12 Russian regions under study for 2010-2014.

View Article and Find Full Text PDF

We performed a targeted sequencing of 242 clinically important genes mostly associated with cardiovascular diseases in a representative population sample of 1,658 individuals from the Ivanovo region northeast of Moscow. Approximately 11% of 11,876 detected variants were not found in the Single Nucleotide Polymorphism Database (dbSNP) or reported earlier in the Russian population. Most novel variants were singletons and doubletons in our sample, and virtually no novel alleles presumably specific for the Russian population were able to reach the frequencies above 0.

View Article and Find Full Text PDF

Heterozygous familial hypercholesterolemia (HeFH) is one of the most common genetic conditions but remains substantially underdiagnosed. The aim of our study was to investigate the prevalence of HeFH in the population of 11 different regions of Russia. Individuals were selected from the Epidemiology of Cardiovascular Risk Factors and Diseases in Regions of the Russian Federation Study.

View Article and Find Full Text PDF

Introduction: Lipoprotein(a) (Lp(a)) is recognized as an independent risk factor for atherosclerotic cardiovascular disease (ASCVD). The aim of this study was to estimate the distribution of Lp(a) levels in working age adults from the Russian population and to assess its association with ischemic heart disease (IHD), myocardial infarction (MI), stroke, diabetes mellitus (DM), and arterial hypertension (AH).

Material And Methods: This substudy of the population-based study "Epidemiology of Cardiovascular Diseases and their Risk Factors in Some Regions of the Russian Federation" (ESSE-RF) included 8461 subjects aged 25-64 years (63.

View Article and Find Full Text PDF
Article Synopsis
  • High mortality rates from cardiovascular disease (CVD) in Russia are largely unexplained by conventional risk factors, with ventricular arrhythmia (VA) identified as a key contributor, particularly in older men.
  • The study analyzed data from the SAHR study involving 1,800 participants with an average age of 68.8 years, assessing the prevalence of VA and its relation to mortality over a 7.4-year follow-up.
  • Findings showed that VAs were twice as common in men than women and linked to higher CVD mortality, explaining a notable portion of the male mortality gap in both CVD and all-cause deaths.
View Article and Find Full Text PDF

Genetic screening is an advanced tool for reducing recessive disease burden. Nowadays, it is still unclear as to the number of genes or their variants that are necessary for effective screening. This paper describes the development of a carrier screening custom panel for cystic fibrosis, phenylketonuria, alpha-1 antitrypsin deficiency, and sensorineural hearing loss consisting of 116 variants in the , , and genes.

View Article and Find Full Text PDF

Background: The study aims at identifying long-term trends and patterns of current smoking by age, gender, and education in Russia, including the most recent period from 2008 during which tobacco control policies were implemented, and to estimate the impact on mortality of any reductions in prevalence. We present an in-depth analysis based on an unprecedentedly large array of survey data.

Methods: We examined pooled micro-data on smoking from 17 rounds of the Russian Longitudinal Monitoring Study of 1996-2016, 11 other surveys conducted in Russia in 1975-2017, and two comparator surveys from England and the USA.

View Article and Find Full Text PDF

Objective: To examine the prevalence of atrial fibrillation (AF), its impacts on cardiovascular disease (CVD) and all-cause mortality, and the associations between AF and inflammatory and serum biomarkers in a population-based sample of Muscovites.

Methods: The study is a secondary analysis of data from the Stress, Aging and Health in Russia (SAHR) survey that includes information on 1800 individuals with an average age of 68.5 years at baseline, and on their subsequent mortality during 7.

View Article and Find Full Text PDF

The National Medical Research Center for Preventive Medicine of Russia (NMRCPM) conducts epidemiological and clinical research for the development of personalized medicine. This is why NMRCPM has faced the problem of how to standardize preanalytical conditions for all biospecimens from various scientific projects and of how to provide long-term responsible standardized regulated safe storage of blood and its derivatives. This article describes various aspects of establishing a biobank in a large medical center dedicated to integrating the biomarkers research activities of different departments.

View Article and Find Full Text PDF

Background: Nitric oxide (NO) is one of the key regulators of vascular function. Abnormal NO signalling is linked to various cardiovascular diseases. We studied associations between circulating levels of NO metabolites, nitrite and nitrate (NOx) and total and cardiovascular mortality in a prospective 8-year follow-up cohort study in 1869 patients aged over 55 years.

View Article and Find Full Text PDF

Unlabelled: The aim of the study is to investigate the epidemiological situation regarding chronic respiratory diseases in populations that inhabit different climatic-geographical regions of Russia, and to develop targeted programs for prevention of these diseases.

Methods: (1) a comparative analysis of the standardized mortality data in Russia and other selected regions of the Russian North using the European standard for respiratory diseases, in a population aged 25-64; and (2) data from a randomized cross-sectional epidemiological study, with subjects from three different climatic-geographical regions of Russia.

Results: (1) the respiratory disease-related mortality rates in the majority of Russian Northern regions were much higher compared to the national average.

View Article and Find Full Text PDF
Article Synopsis
  • - The study aimed to determine the prevalence of familial hypercholesterolemia (FH) in West Siberian Russia, finding 0.92% of the population had either definite or probable FH, suggesting this rate is higher than previously thought.
  • - Among patients with FH, 40% had coronary artery disease (CAD), but only 23% were receiving cholesterol-lowering statin treatment, indicating a significant issue with diagnosis and treatment.
  • - The research highlights an urgent need for improved recognition and management of FH in Russia, as it poses a heightened risk for CAD and related heart issues.
View Article and Find Full Text PDF