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  • Herbarth, Olf  (34)
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  • 1
    Language: English
    In: European Journal of Epidemiology, 2013, Vol.28(7), pp.597-606
    Description: Associations between traffic-related air pollution and incident childhood asthma can be strengthened by analysis of gene-environment interactions, but studies have typically been limited by lack of study power. We combined data from six birth cohorts on: asthma, eczema and allergic rhinitis to 7/8 years, and candidate genes. Individual-level assessment of traffic-related air pollution exposure was estimated using land use regression or dispersion modeling. A total of 11,760 children were included in the Traffic, Asthma and Genetics (TAG) Study; 6.3 % reported physician-diagnosed asthma at school-age, 16.0 % had asthma at anytime during childhood, 14.1 % had allergic rhinitis at school-age, 10.0 % had eczema at school-age and 33.1 % were sensitized to any allergen. For GSTP1 rs1138272, the prevalence of heterozygosity was 16 % (range amongst individual cohorts, 11–17 %) and homozygosity for the minor allele was 1 % (0–2 %). For GSTP1 rs1695, the prevalence of heterozygosity was 45 % (40–48 %) and homozygosity for the minor allele, 12 % (10–12 %). For TNF rs1800629, the prevalence of heterozygosity was 29 % (25–32 %) and homozygosity for the minor allele, 3 % (1–3 %). TAG comprises a rich database, the largest of its kind, for investigating the effect of genotype on the association between air pollution and childhood allergic disease.
    Keywords: Air pollution ; GSTP1 ; TNF ; Asthma ; Wheeze ; Gene-environment
    ISSN: 0393-2990
    E-ISSN: 1573-7284
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  • 2
    Language: English
    In: PLoS ONE, 2012, Vol.7(5), p.e37780
    Description: Elevated cholesterol levels in children can be a risk factor for cardiovascular diseases in later life. In adults, it has been shown that blood lipid levels are strongly influenced by polymorphisms in the fatty acid desaturase ( FADS ) gene cluster in addition to nutritional and other exogenous and endogenous determinants. Our aim was to investigate whether lipid levels are determined by the FADS genotype already in children and whether this association interacts with dietary intake of n-3 fatty acids. ; The analysis was based on data of 2006 children from two German prospective birth cohort studies. Total cholesterol, HDL, LDL and triglycerides were measured at 10 years of age. Six single nucleotide polymorphisms (SNPs) of the gene cluster were genotyped. Dietary n-3 fatty acid intake was assessed by food frequency questionnaire. Linear regression modeling was used to assess the association between lipid levels, n-3 fatty acid intake and genotype. ; Individuals carrying the homozygous minor allele had lower levels of total cholesterol [means ratio (MR) ranging from 0.96 (p = 0.0093) to 0.98 (p = 0.2949), depending on SNPs] and LDL [MR between 0.94 (p = 0.0179) and 0.97 (p = 0.2963)] compared to homozygous major allele carriers. Carriers of the heterozygous allele showed lower HDL levels [β between −0.04 (p = 0.0074) to −0.01 (p = 0.3318)] and higher triglyceride levels [MR ranging from 1.06 (p = 0.0065) to 1.07 (p = 0.0028)] compared to homozygous major allele carriers. A higher n-3 PUFA intake was associated with higher concentrations of total cholesterol, LDL, HDL and lower triglyceride levels, but these associations did not interact with the genotype. ; Total cholesterol, HDL, LDL and triglyceride concentrations may be influenced by the genotype already in 10 year old children. Genetically determined blood lipid levels during childhood might differentially predispose individuals to the development of cardiovascular diseases later in life.
    Keywords: Research Article ; Biology ; Medicine ; Genetics And Genomics ; Public Health And Epidemiology ; Computational Biology ; Evolutionary Biology ; Pediatrics And Child Health ; Biochemistry
    E-ISSN: 1932-6203
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  • 3
    In: Pediatric Allergy and Immunology, May 2013, Vol.24(3), pp.230-236
    Description: Byline: Gabriele Kohlboeck, Sibylle Koletzko, Carl-Peter Bauer, Andrea Berg, Dietrich Berdel, Ursula Kramer, Beate Schaaf, Irina Lehmann, Olf Herbarth, Joachim Heinrich,, Keywords: asthma; atopy; allergy; behavior problems; epidemiology; depression; comorbidity; affective disorders Abstract Objective To date, there is conflicting evidence whether the association between asthma and depression depends on the atopic or non-atopic asthma phenotype. This study investigates associations between emotional symptoms and atopic and non-atopic asthma in school-aged children. Methods Cross-sectional data on asthma and allergic diseases at the 10-year follow-up of two birth cohorts were collected by parent-reported physician diagnoses. Specific IgE levels including most common inhalant allergens (SX1) and food allergens (FX5) were measured by RAST-CAP FEIA. Atopic asthma was defined as asthma ever and positive specific IgE test, non-atopic asthma as asthma ever and no IgE sensitization. Emotional symptoms were assessed by parent-reported strength and difficulty questionnaire. Logistic regression modeling were applied to determine likelihood of emotional symptoms in children with atopic and non-atopic asthma controlling for socio-demographic factors, body mass index, atopic eczema, allergic rhinitis, and pubertal development. Results Non-atopic asthma was associated with about 3-fold higher likelihood of emotional symptoms compared to children with no asthma (ORadj = 2.90, CI95% = 1.46-5.73). Atopic asthma was not associated with emotional symptoms (ORadj = 1.35, CI95% = 0.81-2.26). Conclusions Atopic and non-atopic asthma in children might have different etiologies, whereas for non-atopic asthma, emotional symptoms are relevant, this is not the case in atopic asthma. The relationship between the non-atopic asthma phenotype and emotional symptoms might be dependent on gender. Author Affiliation: Article Note: The GINI-plus Study Group (see Appendix S1). The LISA-plus Study Group (see Appendix S1). Supporting information: Additional Supporting Information may be found in the online version of this article
    Keywords: Asthma ; Atopy ; Allergy ; Behavior Problems ; Epidemiology ; Depression ; Comorbidity ; Affective Disorders
    ISSN: 0905-6157
    E-ISSN: 1399-3038
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  • 4
    In: PLoS ONE, 2013, Vol.8(5)
    Description: Attention-deficit/hyperactivity disorder (ADHD) and dyslexia belong to the most common neuro-behavioral childhood disorders with prevalences of around 5% in school-aged children. It is estimated that 20–60% of individuals affected with ADHD also present with learning disorders. We investigated the comorbidity between ADHD symptoms and reading/spelling and math difficulties in two on-going population-based birth cohort studies. Children with ADHD symptoms were at significantly higher risk of also showing reading/spelling difficulties or disorder (Odds Ratio (OR) = 2.80, p = 6.59×10 −13 ) as compared to children without ADHD symptoms. For math difficulties the association was similar (OR = 2.55, p = 3.63×10 −04 ). Our results strengthen the hypothesis that ADHD and learning disorders are comorbid and share, at least partially, the same underlying process. Up to date, it is not clear, on which exact functional processes this comorbidity is based.
    Keywords: Research Article ; Biology ; Medicine ; Social And Behavioral Sciences
    E-ISSN: 1932-6203
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  • 5
    Language: English
    In: European Child & Adolescent Psychiatry, 2014, Vol.23(8), pp.701-714
    Description: The objective of the study was to investigate associations between severity of behavior problems, specific symptom domains with healthcare use and costs in school-aged children. A cross-sectional study using data from the 10-year follow-up of two population-based birth cohorts was conducted on four rural and urban communities in Germany. There were 3,579 participants [1,834 boys (51%), 1,745 girls (49%)] on average aged 10.4 years. The severity levels (normal, at risk, abnormal) and symptom domains of behavioral problems were assessed by parent-reported strengths and difficulties questionnaire (SDQ).The outcomes were medical use categories (physicians, therapists, hospital, and rehabilitation), medical costs categories and total direct medical use and costs (calculated from parent-reported utilization of healthcare services during the last 12 months). Total direct medical costs showed a graded relationship with severity level (adjusted p  〈 0.0001). Average annual cost difference in total direct medical costs between at risk and normal total difficulties was Euro (€) 271 (SD 858), and € 1,237 (SD 2,528) between abnormal and normal total difficulties. A significant increase in physician costs showed between children with normal and at risk total difficulties (1.30), and between normal and abnormal total difficulties (1.29; p  〈 0.0001). Between specific symptom domains, children with emotional symptoms showed highest costs for physicians, psychotherapist, and hospitalization as well as total direct medical costs. Children with hyperactivity/inattention showed highest costs for therapists and emergency room costs. Healthcare use and costs are related to the severity of child behavior problems. In general, children’s costs for psychotherapy treatments have been low relative to general medical treatments which may indicate that some children with behavioral problems did not get appropriate care. To some degree, medical conditions may be attributable to some of the high hospitalization costs found in children with emotional symptom.
    Keywords: Healthcare utilization ; Medical costs ; Mental health ; Behavior problems ; Epidemiology ; Depression
    ISSN: 1018-8827
    E-ISSN: 1435-165X
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  • 6
    Language: English
    In: BMC public health, 16 April 2013, Vol.13, pp.349
    Description: Physical inactivity among children is an increasing problem that adversely affects children's health. A better understanding of factors which affect physical activity (PA) will help create effective interventions aimed at raising the activity levels of children. This cross-sectional study examined the associations of PA with individual (biological, social, behavioral, psychological) and environmental (East vs. West Germany, rural vs. urban regions) characteristics in children. Information on PA and potential correlates was collected from 1843 girls and 1997 boys using questionnaires during the 10-year follow-up of two prospective birth cohort studies (GINIplus and LISAplus). Study regions represent urban and rural sites as well as East and West of Germany. Logistic regression modeling was applied to examine cross-sectional associations between individual as well as environmental factors and PA levels. Five of fourteen variables were significantly associated with PA. Among children aged 10, girls tended to be less active than boys, especially with respect to vigorous PA (OR = 0.72 for summer). Children who were not a member of a sports club showed a substantially reduced amount of PA in winter (OR = 0.15). Rural environments promote moderate PA, particularly in winter (OR = 1.88), whereas an increased time outdoors primarily promotes moderate PA in summer (OR = 12.41). Children with abnormal emotional symptoms exhibited reduced physical activity, particularly in winter (OR = 0.60). BMI, puberty, parental BMI, parental education, household income, siblings, TV/PC consumption, and method of arriving school, were not associated with PA. When considering correlates of PA from several domains simultaneously, only few factors (sex, sports club membership, physical environment, time outdoors, and emotional symptoms) appear to be relevant. Although the causality needs to be ascertained in longitudinal studies, variables which cannot be modified should be used to identify risk groups while modifiable variables, such as sports club activities, may be addressed in intervention programs.
    Keywords: Life Style ; Motor Activity
    E-ISSN: 1471-2458
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  • 7
    Language: English
    In: Environmental Health Perspectives, 2014, Vol.122(4), pp.418-424
    Description: Background: Genetics may partially explain observed heterogeneity in associations between traffic-related air pollution and incident asthma. Objective: Our aim was to investigate the impact of gene variants associated with oxidative stress and inflammation on associations between air pollution and incident...
    Keywords: S-Transferase P1 ; Tumor-Necrosis-Factor ; Geographic Information-Systems ; Fine Particulate Matter ; Land-Use Regression ; Birth Cohort ; Children ; Susceptibility ; Exposure ; Gstm1
    ISSN: 0091-6765
    E-ISSN: 15529924
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  • 8
    In: Public Health Nutrition, 2011, Vol.14(10), pp.1724-1735
    Description: Abstract Objective To describe regional differences between eastern and western Germany with regard to food, nutrient and supplement intake in 9–12-year-old children, and analyse its association with parental education and equivalent income. Design Data were obtained from the 10-year follow-up of the two prospective birth cohort studies – GINIplus and LISAplus. Data on food consumption and supplement intake were collected using an FFQ, which had been designed for the specific study population. Information on parental educational level and equivalent income was derived from questionnaires. Logistic regression modelling was used to analyse the effect of parental education, equivalent income and region on food intake, after adjusting for potential confounders. Setting Germany. Subjects A total of 3435 children aged 9–12 years. Results Substantial regional differences in food intake were observed between eastern and western Germany. Intakes of bread, butter, eggs, pasta, vegetables/salad and fruit showed a significant direct relationship with the level of parental education after adjusting for potential confounders, whereas intakes of margarine, meat products, pizza, desserts and soft drinks were inversely associated with parental education. Equivalent income had a weaker influence on the child's food intake. Conclusions Nutritional education programmes for school-age children should therefore account for regional differences and parental education.
    Keywords: Monitoring And Surveillance; Diet; Children; Germany; Regional Differences; Socio-economic Determinants
    ISSN: 1368-9800
    E-ISSN: 1475-2727
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  • 9
    Language: English
    In: The Journal of Allergy and Clinical Immunology, December 2011, Vol.128(6), pp.1235-1241.e5
    Description: It was reported that in infants with eczema and food sensitization, the presence of a filaggrin null mutation predicts future asthma with a specificity and positive predictive value of 100%. We sought to evaluate the predictive value of food sensitization and food allergy, haploinsufficiency, and their combination in infants with early-onset eczema for persistent eczema and childhood asthma. The German Infant Nutritional Intervention (GINI) and Influence of Lifestyle-related Factors on the Immune System and the Development of Allergies in Childhood (LISA) birth cohorts, as well as a collection of 65 cases of early-onset eczema with and without food allergy were investigated. The risk for asthma was significantly increased by food sensitization (positive diagnostic likelihood ratios [PLRs] of 1.9 [95% CI, 1.1-3.4] in the GINI cohort and 5.5 [95% CI, 2.8-10.8] in the LISA cohort) and the presence of an mutation (PLRs of 2.9 [95% CI, 1.2-6.6] in the GINI cohort and 2.8 [95% CI, 1.0-7.9] in the LISA cohort) with a rather high specificity (79.1% and 92.9% in the GINI cohort and 89.0% and 91.7% in the LISA cohort, respectively) but low sensitivity (40.0% and 39.3% in the GINI cohort and 31.6% and 23.5% in the LISA cohort, respectively). Likewise, the risk for persistent eczema was increased. In the clinical cases neither food allergy nor mutations had a significant effect. The combination of both parameters did not improve prediction and reached positive predictive values of 52.3% (GINI cohort), 66.9% (LISA cohort), and 30.6% (clinical cases), assuming an asthma prevalence in children with early eczema of 30%. Early food sensitization and the presence of an mutation in infants with early eczema increase the risk for later asthma, but the combination of the 2 factors does not represent a clinically useful approach to reliably identify children at risk.
    Keywords: Eczema ; Atopic Dermatitis ; Asthma ; Food Sensitization ; Food Allergy ; Filaggrin ; Prediction ; Medicine
    ISSN: 0091-6749
    E-ISSN: 1097-6825
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  • 10
    In: Pharmacoepidemiology and Drug Safety, October 2012, Vol.21(10), pp.1102-1111
    Description: Byline: Salvatore Italia, Ariane Batscheider, Joachim Heinrich, Christina Wenig, Carl Peter Bauer, Sibylle Koletzko, Irina Lehmann, Olf Herbarth, Andrea Berg, Dietrich Berdel, Barbara Hoffmann, Beate Schaaf, Silke B. Wolfenstetter ABSTRACT Purpose The socioeconomic determinants for drug utilization, especially in children, have not been investigated sufficiently so far. The study's aim was the estimation of prevalences and determinants of conventional, homeopathic and phytotherapeutic drugs and expenditures. Methods Population-based data on drug utilization of 3,642 children in two German birth cohorts (GINIplus and LISAplus, 10-year follow-up) were collected using a self-administered questionnaire. For analysis, the reported drugs (use within the last four weeks) were classified into the therapeutic categories of 'conventional medicine', 'homeopathy', 'phytotherapy' and 'others'. Drug costs were estimated using pharmaceutical identification numbers. Results In all, 42.3% of the children reported drug use; 24.1% of the drugs were homeopathic and 11.5% were phytotherapeutic. The proportion of children who took at least one homeopathic remedy was 14.3%. Drugs prescribed by physicians were dominated by conventional medicine (76.5%), whereas in non-prescribed drugs, both homeopathy and conventional medicine accounted for 37% each. Boys (ORa=a0.78) used less homeopathy than girls. Income showed only a weak influence. Education had a strong effect on the use of phytotherapy such that children of mothers with higher school education (〉10ayears vs. 〈10ayears) used more phytotherapy (ORa=a2.01). If out-of-pocket payments arose (na=a613), the mean was a[logical not]20. On average, total drug expenditures summed up to a[logical not]39 in 4 weeks for drug users if only clearly identifiable prices for drugs were considered (58% of all data). Conclusions Utilization of homeopathy is common in children from the analyzed cohort. User profiles of homeopathy and phytotherapy differ from each other and should be analyzed separately. Copyright A[c] 2012 John Wiley & Sons, Ltd. Correspondence: C. Wenig, Ludwig-Maximilians-Universitat Munchen, Institute for Health Economics and Management and Munich Center of Health Sciences, Ludwigstr. 28, 80539 Munich, Germany. E-mail: wenig@bwl.lmu.de
    Keywords: Homeopathy ; Phytotherapy ; Complementary Therapies ; Child ; Drug Utilization ; Social Class ; Pharmacoepidemiology
    ISSN: 1053-8569
    E-ISSN: 1099-1557
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