[Patterns of eating habits and body composition in primary school children].

The study of the influence of nutrition and its associations with other parameters, which are closely related to the metabolic profile, in order to better understand the mechanisms of realization of the obesity phenotype in the child population is of particular interest. The aim of the study was to investigate the eating habits of elementary school children and their dependence on the parameters of physical development and body composition of the child population of Tomsk. Material and methods. 506 children aged 7 to 12 years were examined. The main group consisted of 216 children (53.1% boys, 46.9% girls) with overweight and obesity, the control group - 290 healthy children (49.0% boys, 51.0% girls). All children underwent measurement of anthropometric parameters with the calculation of SDS body mass index (WHO Anthro Plus), estimation of body composition by bioimpedancemetry. The actual nutrition of schoolchildren was assessed by the frequency method using a questionnaire. Results. Overweight and obese children had levels of body fat, percent body fat, visceral fat area and whole-body phase angle which were statistically significantly (p<0.001) higher in comparison with the control group. Regular meals were more typical for schoolchildren of the control group compared to the main group (p=0.002). A survey of parents showed that 55.0% of them don't have problems with the nutrition of their children, 32.0% do not have conditions for monitoring their nutrition, 37.5% of children consume high-calorie foods, 29.0% do not comply with the diet, 64.5% - eat while watching TV. Only 21.1% of children consume fresh vegetables daily, cereals - 21.8%, dairy products - 30.3%, milk - 56.5%, meat - 58.5%, cottage cheese - 10.3%. Fish is not consumed by 25.6% of children, consumed less than once a week - by 47.2%. Several times a week, sausages and sausages are consumed by 41.7% of schoolchildren, confectionery - by 32.5%, chocolate and sweets - by 51.5%. Conclusion. The food habits of primary school students in Tomsk are characterized by an insufficient amount of vegetables and fruits, dairy products, fish dishes, a high level of consumption of ultra-processed red meat and various confectionery products (sweets, chocolate, cakes). The absence of statistically significant differences in the results of the survey between the control group and the main group may be due to the multifactorial nature of obesity associated with a variety of behavioral, biological and social factors, the real contribution of which remains to be determined.

Adult onset asthma and interaction between genes and active tobacco smoking: The GABRIEL consortium.

BACKGROUND: Genome-wide association studies have identified novel genetic associations for asthma, but without taking into account the role of active tobacco smoking. This study aimed to identify novel genes that interact with ever active tobacco smoking in adult onset asthma. METHODS: We performed a genome-wide interaction analysis in six studies participating in the GABRIEL consortium following two meta-analyses approaches based on 1) the overall interaction effect and 2) the genetic effect in subjects with and without smoking exposure. We performed a discovery meta-analysis including 4,057 subjects of European descent and replicated our findings in an independent cohort (LifeLines Cohort Study), including 12,475 subjects. RESULTS: First approach: 50 SNPs were selected based on an overall interaction effect at p<10-4. The most pronounced interaction effect was observed for rs9969775 on chromosome 9 (discovery meta-analysis: ORint = 0.50, p = 7.63*10-5, replication: ORint = 0.65, p = 0.02). Second approach: 35 SNPs were selected based on the overall genetic effect in exposed subjects (p <10-4). The most pronounced genetic effect was observed for rs5011804 on chromosome 12 (discovery meta-analysis ORint = 1.50, p = 1.21*10-4; replication: ORint = 1.40, p = 0.03). CONCLUSIONS: Using two genome-wide interaction approaches, we identified novel polymorphisms in non-annotated intergenic regions on chromosomes 9 and 12, that showed suggestive evidence for interaction with active tobacco smoking in the onset of adult asthma.

Opisthorchis felineus negatively associates with skin test reactivity in Russia-EuroPrevall-International Cooperation study.

BACKGROUND: Most studies on the relationship between helminth infections and atopic disorders have been conducted in (sub)tropical developing countries where exposure to multiple parasites and lifestyle can confound the relationship. We aimed to study the relationship between infection with the fish-borne helminth Opishorchis felineus and specific IgE, skin prick testing, and atopic symptoms in Western Siberia, with lifestyle and hygiene standards of a developed country. METHODS: Schoolchildren aged 7-11 years were sampled from one urban and two rural regions. Skin prick tests (SPT) and specific IgE (sIgE) against food and aeroallergens were measured, and data on allergic symptoms and on demographic and socioeconomic factors were collected by questionnaire. Diagnosis of opisthorchiasis was based on PCR performed on stool samples. RESULTS: Of the 732 children included, 34.9% had opisthorchiasis. The sensitization to any allergen when estimated by positive SPT was 12.8%, while much higher, 24.0%, when measured by sIgE. Atopic symptoms in the past year (flexural eczema and/or rhinoconjunctivitis) were reported in 12.4% of the children. SPT was positively related to flexural eczema and rhinoconjunctivitis, but not to wheezing. Opisthorchiasis showed association with lower SPT response, as well as borderline association with low IgE reactivity to any allergen. However, the effect of opisthorchiasis on SPT response was not mediated by IgE, suggesting that opisthorchiasis influences SPT response through another mechanism. Opisthorchiasis also showed borderline association with lower atopic symptoms. CONCLUSIONS: There is a negative association between a chronic helminth infection and skin prick test reactivity even in a developed country.

[Clinico-functional phenotypes of chronic obstructive pulmonary disease, their influence on the severity of the disease, and prognostic value for risk evaluation].

Attempts at optimizing classification of chronic obstructive pulmonary disease (COPD) reflect clinical heterogeneity of this pathology and provide a basis for the search of new phenotypic markers (especially at the early stages of the disease) that could be useful for prognostication of its severity in individual patients. One of the potential makers is phenotyping of COPD with distinguishing bronchitic, emphysemic, and mixed phenotypes. This paper presents results of analysis of functional characteristics of the patients with these phenotypes. They are shown to reflect clinical and functional features of the disease that may be of value for diagnostic purposes, the choice of the treatment strategy and prognosis of the outcome in individual patients.

[Clinical and Functional Phenotypes of Chronic Obstructive Pulmonary Disease, the Effect on the Severity of the Disease and Prognostic Value in Assessing the Risk of Disease Progression].

Background: Chronic obstructive pulmonary disease (COPD) is characterized by progressive limitation of airflow rate, hyperergic inflammatory response of the respiratory tract, and systemic manifestations. Prognosis of the disease depends on the severity of these pathogenetic components. FEV1 which characterizes the speed limit airflow do not allow predicting the rate of COPD progression. Aims: Comparison of the prognostic significance of such clinical parameters as frequency of exacerbations and the development of comorbid diseases to assess the nature of COPD progression by using different classification approaches. Materials and Methods: The prospective comparative study included 98 patients with COPD. In the framework of the study protocol, 2 visits were required when a practitioner recruited patients who met inclusion/exclusion criteria, obtained the signed informed consent, collected the anamnestic data, and performed basic procedures of the study: spirometry, 6-minute stepper test, assessment of dyspnea on questionnaire mMRC, body plethysmography, lung diffusion capacity study, dopplerechocardiography, tomography of the chest. Visit 2 was conducted in 12 months after the first one to assess the dynamics of the disease. The dynamics of the disease was considered negative if, upon repeated examination, the patient was referred to the group with more severe COPD. Results: Our study demonstrates that comprehensive assessment of such factors as the frequency of COPD exacerbations in the preceding 12 months and the presence of comorbid diseases in a patient is reasonable for assessment of disease severity and determination of disease prognosis. At the same time the frequency of COPD exacerbations as one of the evaluated factors is most strongly associated with disease progression. Conclusions: Thus, a practitioner is recommended to use the proposed additional clinical criteria to assess the severity and degree of progression of COPD.

[Genetic determinants of antibiotic resistance in oropharyngeal streptococci in patients with chronic obstructive pulmonary disease and in those with asthma]. / Geneticheskie determinanty ustoichivosti orofaringeal'nykh streptokokkov k antibakterial'nym sredstvam u patsientov s khronicheskoi obstruktivnoi bolezn'yu legkikh i bol'nykh bronkhial'noi astmoi.

AIM: To identify oropharyngeal Streptococcus species and to analyze the genetic determinants of antibiotic resistance in patients with asthma and in those with chronic obstructive pulmonary disease (COPD). MATERIAL AND METHODS: An experimental diagnostic Streptopol+ (Lytech Co. LTD) panel based on a multiplex real-time PCR was applied to investigate the representation of antimicrobial resistance genes (mef and ermB) and the species composition of streptococci isolated from oropharyngeal swab samples from 89 patients with stable COPD and from 51 patients with asthma. RESULTS: In the stable disease period, the oropharyngeal swabs were found to contain Streptococcus pneumoniae in 7.8% of the patients with asthma and in 6.74% of those with COPD; the common feature of these groups was a tendency towards a severe disease course and recurrent exacerbations requiring antibiotics. S. pyogenus was detected in 42.9% of the oropharyngeal swabs from COPD and asthma patients without exacerbations. The oropharyngeal swabs showed the mef gene in 100% of the patients with asthma and in 100% of those with COPD; the ermB gene was encountered in 91% of the patients with COPD and in 82.4% of those with asthma. The COPD patients displayed a direct correlation between the representation of the ermB gene and sputum production and smoking index. The mef and ermB genes were directly correlated with the frequency of exacerbations in patients with COPD. CONCLUSION: The identified streptococci are a reservoir of antimicrobial resistance genetic determinants - the mef and ermB genes encoding the mechanisms of streptococcal macrolide resistance. The representation of the above genes directly correlates with the frequency of exacerbations and the number of antimicrobial drug uses.

[Comparison Study of Oropharyngeal Microbiota in Case of Bronchial Asthma and Chronic Obstructive Pulmonary Disease in Different Severity Levels].

BACKGRAUND: The result of comparative study of oropharyngeal microbiota taxonomic composition in patients with different severity level of bronchial asthma (BA) and chronic obstructive pulmonary disease (COPD) is presented in this paper. AIMS: To compare oropharyngeal microbiota composition in case of bronchial asthma and chronic obstructive pulmonary disease in different severity levels. METODS: 138 patients, 50 with BA and 88 with COPD were studied. For each patient was collected anamnesis vitae, swab from the back of the throat and performed physical examination. High-throughput 16S ribosomal RNA gene sequencing and bioinformatic analysis was employed to characterize the microbial communities. RESULTS: As a result of the study wasfound a number of differences on various taxonomic levels in microbiota's composition within group of patients with different severity level of BA and group of patients with different severity level of COPD and between those groups. COPD patients with GOLD 1-2 in comparison with GOLD 3-4 patiens are marked by prevalence of species Brevibacterium aureum, genus Scardovia, Coprococcus, Haemophilus, Moryella, Dialister, Paludibacter and decrease of Prevotella melaninogenica species. BA patients with severe uncontrolled asthma in comparison with patients which have mild persistent asthma are marked by decrease of Prevotella and increase of species Bifidobacterium longum, Prevotella nanceiensis, Neisseria cinerea, Aggregatibacter segnis and genus Odoribacter, Alloiococcus, Lactobacillus, Megasphaera, Parvimonas, Sneathia. Patient's microbiota in BA group in comparison with COPD group is characterized by the prevalence of Prevotella melaninogenica and genus Selenomonas, Granulicatella u Gemella, and decrease of Prevotella nigrescens, Haemophilus influenza and genus Aggregatibacter, Alloiococcus, Catonella, Mycoplasma, Peptoniphilus u Sediminibacterium. There are no differences between microbiota composition in case of severe uncontrolled BA and very severe COPD. CONCLUSION: Lack of differences in oropharyngeal microbiota taxonomic composition between patients with severe uncontrolled BA and very severe COPD allow us to suggest a similarity of bronchopulmonary system condition in case of diseases' severe stages.

[The airways microbial community composition in healthy individuals and bronchial asthma patients].

This review summarizes the results of studies on the composition of microbial communities in the airways of healthy individuals and patients with asthma. Modern molecular genetic technology of the microbial identification, which are based on a sequence determination of encoding proteins genes conserved regions. These regions form the 16s-subunit ribosomal RNA in microorganisms of different species. These genes are detected by sequencing markers characteristic of individual microorganisms and their phylogenetic groups, and allow to perform a deep analysis of the microbiota in healthy volunteers and patients with chronic bronchoobstructive diseases. So, apparently healthy human bronchial tree is characterized by low bacterial contamination (most typical representatives here are the genera Pseudomonas, Streptococcus, Prevotella, Fusobacteria and Veilonella, much less potentially pathogenic Haemophilus and Neisseria are represented). In bronchial asthma patients the lower respiratory tract microbiota undergoes a qualitative transformation: as compared to healthy individuals the number of Proteobacteria increases and the number of Bacteroidetes decreases. Severe asthma in children is associated with significant respiratory tract Staphylococcus spp. insemination. Association between the asthma developing higher risk in young children and organisms such as Haemophilus, Moraxella and Neisseria spp. It is of considerable interest to determine the role of the microbiome in the development of human diseases of the bronchopulmonary system, and to understand the impact of the microbes communities as a course of disease and the important factor for the development of resistance to therapy.

[The prevalence of food allergy to peanut and hazelnut in children in Tomsk Region].

Food allergy to peanuts and nuts is an actual problem of practical health care, associated with significant prevalence of this disease, severe clinical symptoms and difficulty of diet organization. Purpose of the study--to study the prevalence of food allergy to peanut and hazelnut in Russian children, the investigation of clinical characteristics of this disease, and the mechanisms of sensitization to allergen components. The cross-sectional study was performed in the framework of the EuroPrevall (No FP6-2006-TTC-TU-5 Proposal 045879). The first stage was performed in random samples of primary schoolchildren aged 7-10 years (n = 13 010) from the Tomsk Region, Russia using a standardized questionnaire. The case-control sample was recruited for the second stage (n = 1288). Thus who reported adverse reactions to food in the screening stage were considered as cases (n = 652), children without reported reactions were controls (n = 636). The case-control stage included the completion of a clinical questionnaire, skin-prick test (ALK-Abelly, Spain), serum specific IgE measurement and component-resolved diagnostic: IgE measurement of allergen components of peanut (Ara h1, Ara h26, Ara h34, Ara h8), hazelnut (Cor a1, Cor a8, Cor a11) and birch allergen Bet v1 (ImmunoCAP, Phadia, Sweden). The prevalence of food allergy to peanut and hazelnut in children aged 7-10 years in the Tomsk region is 0.08 and 0.09%, respectively. The manifestation of the food allergy to nuts occurs in the preschool years, main reactions associated with allergy to nuts were oral allergy syndrome (75-80%), gastrointestinal disorders (60-80%) and itching skin rash (20-50%). Sensitization to birch is significantly correlated with the level of specific IgE to hazelnut (r = 0.53, p < 0.05) and peanut (r = 0.56, p < 0.05). Sensitization to heat-labile proteins peanut Ara h8 (12.3%) and hazelnut Cor a1 (8.8%) (homologues of Bet v1) dominates in the sample of children with food sensitization, that determines the cross-reactivity mechanism in the formation of food sensitization in the studied sample. The prevalence of allergies to peanut and hazelnut in Russia is much lower than in Europe and North America. Sensitization to these foods develops by the mechanism of cross-reactivity with birch pollen allergen. This type of sensitization determines mild clinical symptoms of allergy to hazelnut and peanut.

[Stimulation of adenosine receptors on myeloid cells enhance leukocyte migration at the site of burn injury].

Adenosine, endogenous purine nucleoside, is an ATP metabolite that also acts as an extracellular signaling molecule. The concentration of extracellular adenosine rises during hypoxia and cell damage leading to numerous pleiotropic effects. Although a high concentration of adenosine was found at burn injury, the effect has not been well elucidated. We have studied human peripheral blood myeloid cell, due to their expression of specific adenosine receptors and capacity to migrate to the site of burn injury. We have shown that myeloid cells after 72 hours of stimulation of adenosine receptors develop altered expression of surface antigens: preserved monocyte's marker CD14 with already expressed dendritic cell markers (CD209, CD1a). Whereas untreated cells have already lost monocyte marker in 72 hours, and express CD1a more abundantly. Adenosine modified myeloid cells express also higher levels of mRNA of proinflammatory cytokines and chemoattractants (IL-6, IL-8, IL-1 b). Using mouse model of the burn injury we have shown, that adenosine modified bone marrow derived myeloid cells injected in the site of the injury promote migration of granulocytes, monocytes, macrophages, and fibroblasts on the 7th day after burn. Thus, stimulation of adenosine receptors alters differentiation and function of myeloid cells. In the site of burn injury adenosine modified myeloid cells augment cell migration due to paracrine factors.

[Composition of microorganism community in the airways of patients with chronic obstructive pulmonary disease].

This review summarizes results of research on the composition of microorganism community in the airways of patients with chronic obstructive pulmonary disease. Modern technologies for molecular genetic identification of microorganisms provide a deep insight into the microbiota of patients with chronic broncho-obstructive diseases for the better understanding of bronchopulmonary pathology in man and effect of microbiotic communities on the clinical course of diseases and formation of resistance to antibiotics.

[Indices of matrix metalloproteinases (MMP-2, MMP-9, TIMP-1) with juvenile arthritis in children].

UNLABELLED: One of the perspectives of modern rheumatology is the study of matrix metalloproteinases (MMP) in juvenile arthritis--enzymes that play a key role in the process of joint destruction. AIM: To analyse the content of matrix MMP-2 and MMP-9 and their tissue inhibitor (TIMP-1) in blood serum and synovial fluid in various embodiments of juvenile arthritis in children. PATIENTS AND METHODS: The study involved 82 children with juvenile arthritis, and 20 healthy children. The level of MMP-2, MMP-9 and TIMP-1 were determined in serum and synovial fluid by ELISA. RESULTS: It was found out that with any form of arthritis serum concentrations of MMP-2, MMP-9 and TIMP-1 was significantly higher than control values, but the level of MMP-2 in a subset of enthesitis-related arthritis, didn't differ from the control. Studied parameters in the synovial fluid were much higher than the serum level. With the development of uveitis TIMP-1 in blood serum was lower than in the absence of eye damage. On treatment of patients significant changes in the studied enzymes weren't established. On a good response to therapy the level of MMP-9 in serum decreased, on the lack of effectiveness - increased. CONCLUSIONS: The analysis results confirm the involvement of MMP-2, MMP-9 and TIMP-1 in the processes of inflammatory changes of the joints in juvenile idiopathic arthritis (JIA) and reactive arthritis, regardless the patients' sex or age.

[Association of polymorphism Rs6737848 in the Socs5 gene with bronchial asthma].

AIM: To investigate the role of polymorphic variants of immune-response modifying genes in predisposition to asthma. PATIENTS AND METHODS: The analysis of restriction fragments length polymorphism was used to investigate 10 single-nucleotide polymorphisms: IFNG rs2069705, IFNGR2 rs17880053, IL4 rs 2070874, IL4RA rs 1805010, GATA3 rs10905277, TBX21 rs11652969, PIASY rs3760903, PIAS3 rs12756687, STATS rs16967593, and SOCS5 rs6737848 in 106 asthma patients and 115 healthy people. RESULTS: The rs6737848 SOCS5 polymorphism was significantly associated with asthma in additive model (p = 0.05, OR = 0.338, 95% CI 0.158-0.723) and in dominant model (p = 0.02, OR = 0.284, CI 0.126-0.638). None of the polymorphisms of the studied genes was associated with total IgE levels. CONCLUSIONS: This is the first report on the association of rs6737848 SOCS5 with asthma.

[Immunophenotypic characteristic of dendritic cells in bronchial asthma in conditions of extract opisthorchis felineus in vitro].

This work shows comparative characteristics of immunogenic properties of the extract of Opisthorchis felineus in different severity of asthma using antigen presenting dendritic cells in vitro. New data on the effect of Opisthorchis felineus on the expression of surface markers of dendritic cells (CD209, HLA-DR, CD83, CD86) were received. Pronounced expression of CD209, CD86 and HLA-DR on the surface of dendritic cells in mild and severe asthma compared with healthy individuals was shown. In the stimulation of dendritic cells with extract Opisthorchis felineus in vitro weakening of CD86 expression in mild and in severe asthma was found. CD86 molecule may be a regulatory factor in the co-stimulation of dendritic cells which

[The prevalence of food allergies in children in world nidus of opisthorchiasis: background and study methodology of epidemiological survey EuroPrevall].

Accordingly to numerous surveys food allergy affects up to 2-6% of population in different countries and varies due to numerous factors including the prevalence of helminths infestation. The food allergy prevalence data in Russia are based on official medical statistics. The study was performed as part of "The Prevalence, Cost and Basis of Food Allergy Across Europe" (EU funded project No FP6-2006-TTC-TU-5 Proposal 045879 EuroPrevall). The aim is to create the concept offood allergy in children in opisthorchiasis endemic area based on epidemiological study of the prevalence, risk factors and clinical features. The main objective of the study will be the working out of the food safety regulations. This article describes the study design and its methodology.

[Molecular and pharmacogenetic mechanisms of severe asthma].

This review summarizes the results of studies to identify the dominant mechanisms of development and persistence of inflammation in severe asthma and results of pharmacogenetic studies of determination response to drugs. These mechanisms could potentially be used for diagnostic purposes and become the new targets of asthma therapy. Pharmacogenetic information will enable the use of a personalized approach to the asthma management which will adjust the therapy technology and increase the possibility of achieving disease control.

[Effect of additional disease (comorbidity) on association of allergic rhinitis with KCNE4 gene rs12621643 variant].

Analysis of association of allergic rhinitis with the KCNE4 gene rs12621643 variant was conducted in Russian residents of Western Siberia (taking into account comorbidity with bronchial asthma). It was found that, among individuals without bronchial asthma, the frequencies of the KCNE4*G allele and KCNE4*G/G genotype are significantly higher in patients with rhinitis compared to individuals without it. At the same time, no association of rs12621643 with rhinitis was detected in the group of individuals with bronchial asthma. The data obtained indicate the association of the KCNE4 gene variability with allergic rhinitis, although the effect of this gene relative to the development of the disease can be leveled against a background of the manifestation of another atopic disease.

Genome-wide association study of body mass index in 23 000 individuals with and without asthma.

BACKGROUND: Both asthma and obesity are complex disorders that are influenced by environmental and genetic factors. Shared genetic factors between asthma and obesity have been proposed to partly explain epidemiological findings of co-morbidity between these conditions. OBJECTIVE: To identify genetic variants that are associated with body mass index (BMI) in asthmatic children and adults, and to evaluate if there are differences between the genetics of BMI in asthmatics and healthy individuals. METHODS: In total, 19 studies contributed with genome-wide analysis study (GWAS) data from more than 23 000 individuals with predominantly European descent, of whom 8165 are asthmatics. RESULTS: We report associations between several DENND1B variants (P = 2.2 × 10(-7) for rs4915551) on chromosome 1q31 and BMI from a meta-analysis of GWAS data using 2691 asthmatic children (screening data). The top DENND1B single nucleotide polymorphisms(SNPs) were next evaluated in seven independent replication data sets comprising 2014 asthmatics, and rs4915551 was nominally replicated (P < 0.05) in two of the seven studies and of borderline significance in one (P = 0.059). However, strong evidence of effect heterogeneity was observed and overall, the association between rs4915551 and BMI was not significant in the total replication data set, P = 0.71. Using a random effects model, BMI was overall estimated to increase by 0.30 kg/m(2) (P = 0.01 for combined screening and replication data sets, N = 4705) per additional G allele of this DENND1BSNP. FTO was confirmed as an important gene for adult and childhood BMI regardless of asthma status. CONCLUSIONS AND CLINICAL RELEVANCE: DENND1B was recently identified as an asthma susceptibility gene in a GWAS on children, and here, we find evidence that DENND1B variants may also be associated with BMI in asthmatic children. However, the association was overall not replicated in the independent data sets and the heterogeneous effect of DENND1B points to complex associations with the studied diseases that deserve further study.

Contractile reactions of guinea pig airway smooth muscles in the presence of stannum oxide nanosized particles.

Contractile reactions of the guinea pig airway smooth muscles in the presence of stannum dioxide nanosized particles were studied. Contractile reactions to cholinergic and histaminergic stimulation were potentiated by inhalations of nanoparticle aerosol and by exposure of isolated smooth muscle segments to nanoparticle suspension.