Serum levels of Vitamin A and Atopic Rhinoconjunctivitis in Swedish adolescents

Barman, Malin; Carlsson, Nils‐Gunnar; Sandin, Anna; Wold, Agnes E.; Sandberg, Ann-Sofi e

doi:10.17352/jfsnt.000009

Cited by 2 publications

(4 citation statements)

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“…Our study is based on questionnaire responses from a prospective birth cohort study in which data were coded and analyzed using SPSS statistics software (IBM SPSS statistics data editor, version 22). Odds ratios (OR) were calculated to study the association between exposure (cat‐ or dog‐keeping, paternal hay fever, paternal asthma, maternal hay fever, maternal asthma) and outcome (sensitization and occurrence of allergic diseases at 13 years of age).…”

Section: Methodssupporting

confidence: 55%

“…Parents answered questionnaires when their child was one (n = 1043, 85%) and 13 (n = 834, 68%) years of age. Questions asked about pet keeping, symptoms of asthma and other allergies, allergy treatments, and whether the household avoided pet keeping due to allergy among other family members …”

Section: Methodsmentioning

confidence: 99%

“…Questions asked about pet keeping, symptoms of asthma and other allergies, allergy treatments, and whether the household avoided pet keeping due to allergy among other family members. 10,22 Questions related to allergy symptoms were based on the International Study of Asthma and Allergies in Childhood questionnaire (ISAAC). 23…”

Section: Methodsmentioning

confidence: 99%

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Cat and dog ownership during/after the first year of life and risk for sensitization and reported allergy symptoms at age 13

Al-Tamprouri

Barman

Hesselmar

et al. 2019

Immunity Inflam & Disease

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Background Avoidance of pets as a strategy for preventing atopic diseases has been questioned. This study aimed to identify the risk of sensitization and allergic symptoms at age 13 in relation to dog‐ and cat‐keeping during and after the first year of life. Methods The study included all children born at Östersund Hospital in Northern Sweden between February 1996 and January 1997 (n = 1231). At inclusion, parents were asked to answer questionnaires about lifestyle, including cat‐ and dog‐keeping. Dog allergy, cat allergy, hay fever, and asthma were diagnosed based on parental reported allergic symptoms at 13 years of age (n = 834). The risks of sensitization or allergy in relation to dog‐ and cat‐keeping during and after the first year of life were analyzed with logistic regression. To adjust for reverse causation, all subjects that had reported avoidance of pets due to allergic symptoms of the child or allergy in the family (n = 177) were excluded. Results Dog‐ or cat‐keeping during the first year of life reduced the risk of sensitization to dog or cat allergens, respectively, and to birch and to at least one of the 10 allergens tested. Cat‐keeping, both during and after the first year of life, reduced the risk of cat allergy and hay fever. Having a dog at home during the first year of life reduced the risk of dog and cat allergy, whereas dog‐keeping after the first year of life did not affect allergic symptoms. Conclusions Cat ownership, either during or after the first year of life, may be a strategy for preventing the development of cat allergy and hay fever later in life. Dog ownership reduced the risk of sensitization to dog and birch allergen, and also the risk of cat and dog allergy, but had no effect on hay fever.

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Section: Methodssupporting

confidence: 55%

Section: Methodsmentioning

confidence: 99%

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Cat and dog ownership during/after the first year of life and risk for sensitization and reported allergy symptoms at age 13

Al-Tamprouri

Barman

Hesselmar

et al. 2019

Immunity Inflam & Disease

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“… 41 Concentrations of vitamin A and D will be determined in plasma with liquid chromathography-tandem massspectometry (LC-MS/MS). 42 43 …”

Section: Methods and Analysismentioning

confidence: 99%

Nutritional impact on Immunological maturation during Childhood in relation to the Environment (NICE): a prospective birth cohort in northern Sweden

et al. 2018

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IntroductionPrenatal 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 analysisThe 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 disseminationThe 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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Serum levels of Vitamin A and Atopic Rhinoconjunctivitis in Swedish adolescents

Cited by 2 publications

References 32 publications

Cat and dog ownership during/after the first year of life and risk for sensitization and reported allergy symptoms at age 13

Cat and dog ownership during/after the first year of life and risk for sensitization and reported allergy symptoms at age 13

Nutritional impact on Immunological maturation during Childhood in relation to the Environment (NICE): a prospective birth cohort in northern Sweden

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