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Sökning: WFRF:(Ahrens Wolfgang)

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31.
  • González-Gil, Esther M., et al. (författare)
  • Improving cardiorespiratory fitness protects against inflammation in children : the IDEFICS study
  • 2022
  • Ingår i: Pediatric Research. - : Springer Nature. - 0031-3998 .- 1530-0447. ; 91:3, s. 681-689
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Muscular and cardiorespiratory fitness (MF and CRF) have been related to inflammation. Thus, the aim of this study was to assess the relationship between fitness and high-sensitivity C-reactive protein (hs-CRP) in European children both in the cross-sectional and longitudinal analysis. Methods: Three hundred and fifty-seven children (46.2% males) aged 2–9 years with hs-CRP measured, data from MF and CRF, diet quality, objectively measured physical activity (PA) and screen time at baseline and follow-up after 2 years were included. Body mass index z-score (zBMI), waist circumference (WC) and fat mass index (FMI) were assessed. MF and CRF were also dichotomized as follows: low-medium quartiles (Q1–Q3) and highest quartile (Q4). Results: At follow-up, children with the highest CRF (Q4) showed a lower probability of having high hs-CRP. In the longitudinal analysis, children who improved their CRF over time showed a significantly lower probability (p < 0.05) of being in the highest hs-CRP category at follow-up, independently of the body composition index considered: odds ratio (OR) = 0.22 for zBMI, OR = 0.17 for WC, and OR = 0.21 for FMI. Conclusions: Improving CRF during childhood reduces the odds of an inflammatory profile, independently of body composition and lifestyle behaviours. These highlight the importance of enhancing fitness, especially CRF, to avoid an inflammatory state in children. Impact: Improvements in the cardiorespiratory profile during childhood could reverse an unfavourable inflammatory status.There is a longitudinal and inverse association between CRF and inflammation in children.This is the first longitudinal study assessing the relationship between fitness and inflammation during childhood that takes also into account the lifestyle behaviours.Results from the present study suggest a protective role of fitness already in childhood.Efforts to improve fitness in children should be aimed at as inflammation could trigger future cardiovascular disease. 
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32.
  • Grippi, Claudio, et al. (författare)
  • Association between variants of neuromedin U gene and taste thresholds and food preferences in European children: Results from the IDEFICS study.
  • 2019
  • Ingår i: Appetite. - : Elsevier BV. - 1095-8304 .- 0195-6663. ; 142
  • Tidskriftsartikel (refereegranskat)abstract
    • The neuropeptide neuromedin U (NMU) known for its role in appetite, feeding and energy balance could be involved in the control of food choice and taste sensitivity. We examined the association between NMU polymorphisms/haplotypes and taste thresholds and food preferences in a population of European children.A total of 578 subjects from the IDEFICS study (mean age 7.5±0.8 SD, boys 53.6%) with NMU genotype data and food preference (salty, fatty, sweet, flavour and umami food) and taste threshold (salt, fat, sweet, umami) tests available were analysed. Three single nucleotide polymorphisms (SNPs; rs6827359, T:C; rs12500837, T:C; rs9999653, C:T) of NMU gene were analyzed and five major haplotypes were inferred. The associations between genotypes and food preferences or taste thresholds were investigated (odds ratios -OR, adjusted for age, sex and country). A p<0.05 after false discovery rate adjustment (pFDR) was considered statistically significant.The association between NMU genotypes and food preference showed two NMU SNPs associated with preference for food containing sodium glutamate (umami taste; rs6827359C, OR=1.61, 95% confidence interval (CI):1.20-2.17; rs9999653T, OR=1.59, 95%CI:1.18-2.13). In the haplotype analysis, the CTT haplotype showed an OR of 1.70 (95%CI:1.16-2.5) for the umami food preference, while CCT haplotype showed an OR of 1.63 (95%CI:1.11-2.40), compared to the most frequent haplotype (TTC). Carriers of CCT/CCT vs subjects with no CCT haplotype showed an OR of 4.78 (95%CI:1.86-12.30). Umami food preference was associated with low values of BMI z-score, arm circumferences, skinfolds and fat mass (pFDR<0.05). No association between NMU genetic variants and taste thresholds was found.This study shows for the first time in children an association between preference for umami food and a NMU haplotype, previously found associated with low BMI values.
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33.
  • Guénel, Pascal, et al. (författare)
  • Alcohol drinking may increase risk of breast cancer in men : a European population-based case-control study
  • 2004
  • Ingår i: Cancer Causes and Control. - 1573-7225 .- 0957-5243. ; 15:6, s. 80-571
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: It has been estimated that alcohol drinking increases the risk of breast cancer in women by approximately 7% for each increment of 10 g alcohol per day. However, the few studies conducted on breast cancer among men have failed to detect an association with quantitative measures of alcohol drinking, even if the alcohol intake is generally higher in men than in women. On the other hand, increased risks of male breast cancer were inconsistently reported in alcoholics or patients with liver cirrhosis. We have investigated the role of alcohol drinking in male breast cancer using data collected in a population-based case-control study on seven rare cancers, conducted in Denmark, France, Germany, Italy, and Sweden.METHODS: The cases were 74 histologically verified male breast cancer patients aged 35-70 years. The controls (n = 1432) were selected from population registers, and frequency-matched to the cases by age group and geographic area. To check for consistency, a separate analysis was conducted using as controls the patients with a rare cancer other than male breast recruited simultaneously in the European study (n = 519 men).RESULTS: Based on population controls, the risk of developing breast cancer in men increased by 16% (95% CI: 7-26%) per 10 g alcohol /day (p < 0.001). An odds ratio of 5.89 (95% CI: 2.21-15.69) was observed for alcohol intake greater than 90 g per day, as compared with light consumers (< 15 g per day). Similar associations were observed when other rare cancers patients were used as controls.CONCLUSION: We found that the relative risk of breast cancer in men is comparable to that in women for alcohol intakes below 60 g per day. It continues to increase at high consumption levels not usually studied in women.
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34.
  • Guzmán, Viveka, et al. (författare)
  • Associations of Sleep Duration and Screen Time with Incidence of Overweight in European Children : The IDEFICS/I.Family Cohort
  • 2022
  • Ingår i: Obesity Facts. - : S. Karger. - 1662-4025 .- 1662-4033. ; 15:1, s. 55-61
  • Tidskriftsartikel (refereegranskat)abstract
    • INTRODUCTION: Over the past decades, children have been increasingly using screen devices, while at the same time their sleep duration has decreased. Both behaviors have been associated with excess weight, and it is possible they act as mutually reinforcing behaviors for weight gain. The aim of the study was to explore independent, prospective associations of screen time and sleep duration with incident overweight in a sample of European children.METHODS: Data from 4,285 children of the IDEFICS/I.Family cohort who were followed up from 2009/2010 to 2013/2014 were analyzed. Hours per day of screen time and of sleep duration were reported by parents at baseline. Logistic regression analyses were carried out in separate and mutually adjusted models controlled for sex, age, European country region, parental level of education, and baseline BMI z-scores.RESULTS: Among normal weight children at baseline (N = 3,734), separate models suggest that every hour increase in screen time and every hour decrease in sleep duration were associated with higher odds of the child becoming overweight or obese at follow-up (OR = 1.16, 95% CI: 1.02-1.32 and OR = 1.23, 95% CI: 1.05-1.43, respectively). In the mutually adjusted model, both associations were attenuated slightly ( screen time OR = 1.13, 95% CI: 0.99-1.28; sleep duration OR = 1.20, 95% CI: 1.03-1.40), being consistently somewhat stronger for sleep duration.DISCUSSION/CONCLUSION: Both screen time and sleep duration increased the incidence of overweight or obesity by 13-20%. Interventions that include an emphasis on adequate sleep and minimal screen time are needed to establish their causal role in the prevention of overweight and obesity among European children.
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35.
  • Hense, Sabrina, et al. (författare)
  • Factors that influence weekday sleep duration in European children.
  • 2011
  • Ingår i: Sleep. - 1550-9109. ; 34:5, s. 633-9
  • Tidskriftsartikel (refereegranskat)abstract
    • Study Objectives: To compare nocturnal sleep duration in children from 8 European countries and identify its determinants. Design: Cross-sectional. Setting: Primary schools and preschools participating in the IDEFICS study. Participants: 8,542 children aged 2 to 9 years from 8 European countries with complete with complete information o nocturnal sleep duration. Interventions: Not applicable. Measurements: Nocturnal sleep duration was assessed by means of a computer based parental 24-h recall. Data on personal, social, environmental, and behavioural factors were collected by means of standardized parental questionnaire. Physical activity was surveyed with accelerometers. Results: Nocturnal sleep duration in the participating coutries ranged from 9.5 h (SD 0.8) in Estonia to 11.2 h (SD 0.7) in Belgium and differed significantly between countries (P < 0.001) in univariate as well as in multivariate analyses, with children from northern countries sleeping the longest. Sleep duration decreased by about 6 min with each year of age over all countries. No effect of season, daylight duration, overweight, parental education level, or lifestyle factors could be seen. Conclusion: Sleep duration differs significantly between countries. Our findings allow for the conclusion that regional affiliation, including culture and environmental characgteristics, seems to overlay individual determinants of sleep duration.
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36.
  • Hense, Sabrina, et al. (författare)
  • Sleep duration and overweight in European children: is the association modified by geographic region?
  • 2011
  • Ingår i: AMER ACAD SLEEP MEDICINE. - : AMER ACAD SLEEP MEDICINE. - 0161-8105 .- 1550-9109. ; 34:7, s. 885-890
  • Tidskriftsartikel (refereegranskat)abstract
    • To investigate differences and a possible effect modification by geographical region in the association between sleep duration and overweight. Cross-sectional. Primary schools and preschools in 8 European countries. 7867 children aged 2 to 9 years. Not applicable. Nocturnal sleep duration was assessed as part of a parental 24-h recall. Height and weight were measured by standardized procedures across centers. Data on personal, social, environmental and behavioral factors were collected using a standardized parental questionnaire. Sleep duration differed (P < 0.001) between European regions and normal vs. overweight children. A dose-dependent inverse association between sleep duration and overweight could be seen, with crude odds ratios ranging from 1.73 (99% CI 1.33; 2.25) for sleeping between 10 and 11 h to 3.81 (99% CI 2.85; 5.09) for sleeping less than 9 h (reference category > 11 h). This persisted after adjustment, but remained significant only for sleeping less than 9 h per night (north: OR = 1.70; 99% CI 1.13; 2.58 vs. south: OR = 2.84; 99% CI 1.57; 5.12) if stratified by region. No effect modification by region could be found, but adjustment for region accounted for changes in the effect estimate for sleeping less than 9 h (OR = 2.22; 99% CI 1.64; 3.02). The association was stronger in school children than in preschool children. Geographic region and related aspects-even if they do not seem to modify the association between sleep and overweight-should in any case be taken in consideration as a confounding factor on this association.
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37.
  • Herrmann, Diana, et al. (författare)
  • Impact of physical activity, sedentary behaviour and muscle strength on bone stiffness in 2-10-year-old children-cross-sectional results from the IDEFICS study.
  • 2015
  • Ingår i: The international journal of behavioral nutrition and physical activity. - : Springer Science and Business Media LLC. - 1479-5868. ; 12
  • Tidskriftsartikel (refereegranskat)abstract
    • Physical activity (PA), weight-bearing exercises (WBE) and muscle strength contribute to skeletal development, while sedentary behaviour (SB) adversely affects bone health. Previous studies examined the isolated effect of PA, SB or muscle strength on bone health, which was usually assessed by x-ray methods, in children. Little is known about the combined effects of these factors on bone stiffness (SI) assessed by quantitative ultrasound. We investigated the joint association of PA, SB and muscle strength on SI in children.
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38.
  • Huang, Christina Y., et al. (författare)
  • Pester power and its consequences : do European children's food purchasing requests relate to diet and weight outcomes?
  • 2016
  • Ingår i: Public Health Nutrition. - : Cambridge University Press. - 1368-9800 .- 1475-2727. ; 19:13, s. 2393-2403
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective Children may influence household spending through pester power'. The present study examined pestering through parent-child food shopping behaviours in relation to children's diet and weight status. Design Cross-sectional and prospective analyses drawn from the IDEFICS study, a cohort study of parents and their children. Children's height and weight were measured and their recent diets were reported by parental proxy based on the Children's Eating Habits Questionnaire-FFQ at baseline and 2-year follow-up. Parents also completed questionnaires at both time points about pestering, including whether the child goes grocery shopping with them, asks for items seen on television and is bought requested food items. Setting Participants were recruited from eight European countries for the IDEFICS study (non-nationally representative sample). Subjects Study participants were children aged 2-9 years at enrolment and their parents. A total of 13 217 parent-child dyads were included at baseline. Two years later, 7820 of the children were re-examined. Results Most parents (63 %) at baseline reported sometimes' acquiescing to their children's requests to purchase specific foods. Pestering was modestly associated with weight and diet. At baseline, children whose parents often' complied consumed more high-sugar and high-fat foods. Children who often' asked for items seen on television were likely to become overweight after 2 years (OR=131), whereas never' asking protected against overweight (OR=072). Conclusions Pestering was modestly related to diet and weight in cross-sectional, but not longitudinal analyses. Asking for items seen on television had the most robust relationships across child outcomes and over time.
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39.
  • Hung, Rayjean J, et al. (författare)
  • A susceptibility locus for lung cancer maps to nicotinic acetylcholine receptor subunit genes on 15q25
  • 2008
  • Ingår i: Nature. - : Nature Publishing Group. - 0028-0836 .- 1476-4687. ; 452:7187, s. 633-637
  • Tidskriftsartikel (refereegranskat)abstract
    • Lung cancer is the most common cause of cancer death worldwide, with over one million cases annually. To identify genetic factors that modify disease risk, we conducted a genome-wide association study by analysing 317,139 single-nucleotide polymorphisms in 1,989 lung cancer cases and 2,625 controls from six central European countries. We identified a locus in chromosome region 15q25 that was strongly associated with lung cancer (P = 9 x 10(-10)). This locus was replicated in five separate lung cancer studies comprising an additional 2,513 lung cancer cases and 4,752 controls (P = 5 x 10(-20) overall), and it was found to account for 14% (attributable risk) of lung cancer cases. Statistically similar risks were observed irrespective of smoking status or propensity to smoke tobacco. The association region contains several genes, including three that encode nicotinic acetylcholine receptor subunits (CHRNA5, CHRNA3 and CHRNB4). Such subunits are expressed in neurons and other tissues, in particular alveolar epithelial cells, pulmonary neuroendocrine cells and lung cancer cell lines, and they bind to N'-nitrosonornicotine and potential lung carcinogens. A non-synonymous variant of CHRNA5 that induces an amino acid substitution (D398N) at a highly conserved site in the second intracellular loop of the protein is among the markers with the strongest disease associations. Our results provide compelling evidence of a locus at 15q25 predisposing to lung cancer, and reinforce interest in nicotinic acetylcholine receptors as potential disease candidates and chemopreventative targets.
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40.
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