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Träfflista för sökning "WFRF:(Hesselmar Bill 1955) srt2:(2015-2019)"

Sökning: WFRF:(Hesselmar Bill 1955) > (2015-2019)

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1.
  • Barman, Malin, 1983, et al. (författare)
  • No association between allergy and current 25-hydroxy vitamin D in serum or vitamin D intake
  • 2015
  • Ingår i: Acta Paediatrica. - : Wiley. - 0803-5253 .- 1651-2227. ; 104:4, s. 405-413
  • Tidskriftsartikel (refereegranskat)abstract
    • Aim Vitamin D may be involved in allergy development, but there is conflicting evidence. We investigated if dietary intake of vitamin D and levels of 25OHD in serum differed between allergic and nonallergic adolescents and if serum 25OHD correlated with dietary intake of vitamin D or season of blood sampling. Methods Serum 25-hydroxy vitamin D (25OHD) levels were analysed in 13-year-old subjects with atopic eczema (n = 55), respiratory allergy (n = 55) or no allergy (n = 55). Intake of fat-containing foods was assessed by food-frequency questionnaires, and total daily vitamin D intake was calculated. Logistic regression was used to adjust for gender, parental allergy and time of blood sampling. Results Subjects with atopic eczema or respiratory allergy did not differ from nonallergic controls regarding serum 25OHD levels or calculated vitamin D intake. Subjects sampled in the autumn had significantly higher levels of serum 25OHD than subjects sampled in the winter or spring. Serum 25OHD levels correlated to consumption of vitamin D-fortified lean milk (p = 0.001). Conclusion The findings suggest no association between allergy and 25OHD levels in serum or vitamin D intake in adolescents. Serum 25OHD levels correlated to intake of vitamin D-fortified lean milk.
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2.
  • Barman, Malin, 1983, et al. (författare)
  • Nutritional impact on Immunological maturation during Childhood in relation to the Environment (NICE): a prospective birth cohort in northern Sweden
  • 2018
  • Ingår i: BMJ Open. - : BMJ. - 2044-6055 .- 2044-6055. ; 8:10
  • Tidskriftsartikel (refereegranskat)abstract
    • © Author(s) (or their employer(s)) 2018. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. INTRODUCTION: Prenatal and neonatal environmental factors, such as nutrition, microbes and toxicants, may affect health throughout life. Many diseases, such as allergy and impaired child development, may be programmed already in utero or during early infancy. Birth cohorts are important tools to study associations between early life exposure and disease risk. Here, we describe the study protocol of the prospective birth cohort, 'Nutritional impact on Immunological maturation during Childhood in relation to the Environment' (NICE). The primary aim of the NICE cohort is to clarify the effect of key environmental exposures-diet, microbes and environmental toxicants-during pregnancy and early childhood, on the maturation of the infant's immune system, including initiation of sensitisation and allergy as well as some secondary outcomes: infant growth, obesity, neurological development and oral health.METHODS AND ANALYSIS: The NICE cohort will recruit about 650 families during mid-pregnancy. The principal inclusion criterion will be planned birth at the Sunderby Hospital in the north of Sweden, during 2015-2018. Questionnaires data and biological samples will be collected at 10 time-points, from pregnancy until the children reach 4 years of age. Samples will be collected primarily from mothers and children, and from fathers. Biological samples include blood, urine, placenta, breast milk, meconium, faeces, saliva and hair. Information regarding allergic heredity, diet, socioeconomic status, lifestyle including smoking, siblings, pet ownership, etc will be collected using questionnaires. Sensitisation to common allergens will be assessed by skin prick testing and allergic disease will be diagnosed by a paediatrician at 1 and 4 years of age. At 4 years of age, the children will also be examined regarding growth, neurobehavioural and neurophysiological status and oral health.ETHICS AND DISSEMINATION: The NICE cohort has been approved by the Regional Ethical Review Board in Umeå, Sweden (2013/18-31M). Results will be disseminated through peer-reviewed journals and communicated on scientific conferences.
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3.
  • Hesselmar, Bill, 1955, et al. (författare)
  • An index to predict asthma in wheezing young children produced promising initial results.
  • 2017
  • Ingår i: Acta Paediatrica. - : Wiley. - 0803-5253. ; 106:9, s. 1532-1533
  • Tidskriftsartikel (refereegranskat)abstract
    • Diagnosing asthma is difficult in infants and preschool children because wheezing is common in this age group and it is not synonymous with asthma. Some children outgrow the tendency to wheeze during colds in a few years' time, whereas other develop asthma. Efforts have been made to find ways to identify the subgroup of preschool children with wheeze who are most likely to develop asthma (1,2). However, the different asthma predictive indexes mainly aim to predict children who will have a persistent wheeze or asthma, not necessarily the subgroup who will outgrow their symptoms. This article is protected by copyright. All rights reserved.
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4.
  • Hesselmar, Bill, 1955, et al. (författare)
  • Pet-keeping in early life reduces the risk of allergy in a dose-dependent fashion.
  • 2018
  • Ingår i: PloS one. - : Public Library of Science (PLoS). - 1932-6203. ; 13:12
  • Tidskriftsartikel (refereegranskat)abstract
    • Several studies have indicated that early pet keeping could protect the infant from later allergy development. Here, we investigate if there is a dose-dependent association between cat- and dog-keeping during the first year of life and subsequent allergy development.Two cohorts were investigated: a cross-sectional questionnaire-based study of 7- to 8-year-old children (N = 1029) from Mölndal and Kiruna, and a birth-cohort of children from the Västra Götaland county clinically evaluated for asthma and allergy by paediatricians up to the age of 8-9 years (N = 249). The cross-sectional study asked validated questions on asthma and allergy that had been used in two previous studies of children from the same areas. In the birth-cohort study, a diagnosis of asthma and allergy was based on predefined clinical criteria, and laboratory evaluation included blood eosinophils, skin-prick tests and specific immunoglobulin E analyses. Information on pets during first year of life was collected retrospectively in the Cross-Sectional Cohort and prospectively in the Birth Cohort.A dose-response association was seen, with less allergic manifestations (any of asthma, allergic rhinoconjunctivitis, or eczema) with increasing number of household cats and dogs during the first year of life. In the Cross-Sectional Cohort, allergy ever decreased from 49% in those with no pets to zero in those with five or more pets (P-value for trend 0.038), and from 32% to zero for allergy last year (P-value for trend 0.006). The same pattern was seen in Birth Cohort. Sensitization to animals, as well as pollens, also decreased with increasing number of animals in the household.The prevalence of allergic disease in children aged 7-9 years is reduced in a dose-dependent fashion with the number of household pets living with the child during their first year of life, suggesting a "mini-farm" effect, whereby cats and dogs protect against allergy development.
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7.
  • Jonsson, Karin, 1982, et al. (författare)
  • Late introduction of fish and eggs is associated with increased risk of allergy development - results from the FARMFLORA birth cohort
  • 2017
  • Ingår i: Food and Nutrition Research. - : SNF Swedish Nutrition Foundation. - 1654-6628 .- 1654-661X. ; 61:1
  • Tidskriftsartikel (refereegranskat)abstract
    • The prevalence of allergy is markedly low in children growing up on farms. An increasing number of studies indicate that the timing of food introduction may affect allergy development. We aimed to investigate if protection against allergy in farm environments may be mediated through differences in food-introduction practices between farm and non-farm families, using an explorative approach. Twenty-eight farm and 37 non-farm children were included in the FARMFLORA birth cohort. Practices of breastfeeding and introduction of formulas and complementary foods were collected by questionnaires at 6, 12, and 18 months of age. Allergy was diagnosed by pediatricians at 3 years of age. The only difference in food-introduction practices observed between farm and non-farm children was an earlier introduction of nuts in farmers (median month: 11 [IQR: 8-6] in farmers, 15 [12-19] in non-farmers). One farm child (4%) and 10 non-farm children (27%) were allergic at 3 years of age. Lower risk of allergy development was associated with early exclusive breastfeeding (continuous variable; OR = 0.59, 95% CI: 0.39-0.89), but also having received eggs (OR = 0.08, 95% CI: 0.13-0.54) and fish (logistic regression not applicable, P = 0.01 in likelihood ratio testing [chi(2)]) at 10 months of age or earlier compared to later. Our results were not affected by reverse causation, as judged by a questionnaire sent to the families in retrospect. Timing of introduction of complementary foods is unlikely to contribute to the lower risk of allergy among farm children. Although early exclusive breastfeeding was associated with a lower rate of allergy development, postponed introduction of complementary foods might increase the risk of developing allergy. Owing to the limited sample size, our results are only indicative, but support prior findings.
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8.
  • Jonsson, Karin, 1982, et al. (författare)
  • Serum fatty acids in infants, reflecting family fish consumption, were inversely associated with allergy development but not related to farm residence. : Serum fatty acids and allergy in farm and control children
  • 2016
  • Ingår i: Acta paediatrica (Oslo, Norway : 1992). - : Wiley. - 1651-2227 .- 0803-5253. ; 105:12, s. 1462-1471
  • Tidskriftsartikel (refereegranskat)abstract
    • AIM: In this study, differences in serum fatty acid patterns between farm and non-farm infants were investigated and related to subsequent allergy development. We also related allergy-related serum fatty acids to maternal diet and breast milk fatty acids. METHODS: The FARMFLORA birth cohort included 28 farm and 37 non-farm infants. Serum was obtained from 21 farm infants and 29 controls at four months postpartum and analysed for phospholipid fatty acids. Allergy was diagnosed by paediatricians at three years of age. RESULTS: Serum fatty acid patterns were similar in farm and control infants, although farm infants had lower 18:1 omega-7 proportions. Serum proportions of eicosapentaenoic acid (EPA) were unrelated to farming status, but lower in children who subsequently developed allergy, with an odds ratio of 0.47 and 95% confidence interval of 0.27-0.83 (p=0.01) for every 0.1% EPA increase. The infants' serum EPA proportions correlated with breast milk EPA proportions, which, in turn, correlated with maternal oily fish intake during lactation. CONCLUSION: The allergy protective effect of farming was not linked to infant serum fatty acid composition. However, healthy infants had higher proportions of EPA in their sera, probably reflecting a family diet rich in fish, compared to subsequently allergic children.
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9.
  • Jonsson, Karin, 1982, et al. (författare)
  • Serum fatty acids in infants, reflecting family fish consumption, were inversely associated with allergy development but not related to farm residence.
  • 2016
  • Ingår i: Acta Paediatrica, International Journal of Paediatrics. - : Wiley. - 0803-5253 .- 1651-2227. ; 105:12, s. 1462-1471
  • Tidskriftsartikel (refereegranskat)abstract
    • AIM:In this study, differences in serum fatty acid patterns between farm and non-farm infants were investigated and related to subsequent allergy development. We also related allergy-related serum fatty acids to maternal diet and breast milk fatty acids.METHODS:The FARMFLORA birth cohort included 28 farm and 37 non-farm infants. Serum was obtained from 21 farm infants and 29 controls at four months postpartum and analysed for phospholipid fatty acids. Allergy was diagnosed by paediatricians at three years of age.RESULTS:Serum fatty acid patterns were similar in farm and control infants, although farm infants had lower 18:1 omega-7 proportions. Serum proportions of eicosapentaenoic acid (EPA) were unrelated to farming status, but lower in children who subsequently developed allergy, with an odds ratio of 0.47 and 95% confidence interval of 0.27-0.83 (p=0.01) for every 0.1% EPA increase. The infants' serum EPA proportions correlated with breast milk EPA proportions, which, in turn, correlated with maternal oily fish intake during lactation.CONCLUSION:The allergy protective effect of farming was not linked to infant serum fatty acid composition. However, healthy infants had higher proportions of EPA in their sera, probably reflecting a family diet rich in fish, compared to subsequently allergic children.
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10.
  • Käppi, Timo, 1975, et al. (författare)
  • High frequency of concomitant food allergy development and autoantibody formation in children who have undergone liver transplantation
  • 2019
  • Ingår i: Transplantation. - 1534-6080. ; 103:11, s. 2338-2346
  • Tidskriftsartikel (refereegranskat)abstract
    • Allergy and other immune-mediated diseases are more frequently reported in children who have undergone liver transplantation. Furthermore, autoantibodies are also prevalent, suggesting a state of immune dysregulation in these patients. Whether or not these processes occur simultaneously in the same individual has not been studied previously.A cohort of 43 children who had undergone liver transplantation for nonautoimmune liver disease at median age of 1.3 years was investigated for allergy and autoimmune disease. Sensitization to food and inhalant allergens was assessed and autoantibodies were measured.The prevalence of food allergy was 26% and that of respiratory allergy was 23%, while 33% and 26% of the subjects were sensitized to food and inhalant allergens, respectively. Autoimmune disease (i.e., autoimmune hepatitis) occurred in a single individual (2%), whereas autoantibodies were present in 44% of the children. Food allergy and autoantibodies occurred concomitantly in 19% of the children, which was almost twice the frequency expected by chance (11%, p=0.04). Respiratory allergy and the presence of autoantibodies were unrelated (12% concurrence vs the expected 10%, p = 0.73). In the logistic regression analysis, autoantibody formation was associated with discontinued immunosuppression and food allergy, with odds ratios of 13 (p=0.01) and 7.1 (p=0.03), respectively.In contrast to respiratory allergy, food allergy and autoantibody formation occurred together in the same children who underwent liver transplantation at a frequency higher than would be expected by chance. This may reflect an underlying immune dysregulation that impairs immune tolerance to both food allergens and autoantigens.
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