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Environmental, personal, and genetic determinants of response to vitamin D supplementation in older adultsWe aimed to examine genetic and nongenetic determinants of change in serum 25-hydroxyvitamin D (25(OH)D) after supplementation.
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Low vitamin D levels are associated with symptoms of depression in young adult malesResults from studies examining associations between serum 25-hydroxyvitamin D (25(OH)D) concentrations and depressive symptoms are equivocal.
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Developmental vitamin D deficiency increases foetal exposure to testosteroneAutism spectrum disorder (ASD) is a group of neurodevelopmental disorders which are more common in males. The 'prenatal sex steroid' hypothesis links excessive sex-steroid exposure during foetal life with the behavioural differences observed in ASD. However, the reason why sex steroid exposure may be excessive remains unclear. Epidemiological studies have identified several environmental risk factors associated with ASD, including developmental vitamin D (DVD) deficiency.
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The current state of play of rodent models to study the role of vitamin D in UV-induced immunomodulationUltraviolet radiation (UVR) from sunlight is immunomodulatory and the main source of vitamin D for humans.
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Vitamin D 3 deficiency enhances allergen-induced lymphocyte responses in a mouse model of allergic airway diseaseIn this study, using a mouse model, we determined whether vitamin D deficiency in utero and during early life modulated the severity of asthma.
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UV exposure and protection against allergic airways diseaseAsthma is a chronic inflammatory disease of the small and large conducting airway mucosa characterised by Th2 cell immunity.
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Associations between sun exposure, skin pH, and epidermal permeability in pregnancy: A longitudinal observational studyLittle is known about how sun exposure may affect the maternal skin barrier during pregnancy when many hormonal and physiological changes occur. In this longitudinal observational study, 50 pregnant women were recruited at 18-24 weeks' gestation, 25 in summer-autumn, and 25 in winter-spring. At three time points in pregnancy at 18-24, 28-30, and 36-38 weeks' gestation, participants completed a validated sun exposure questionnaire and had skin permeability and surface pH measured on the volar forearm.
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Demographic and clinical predictors of vitamin D status in pregnant women tested for deficiency in Western AustraliaThis study aimed to describe the vitamin D status of pregnant women in Western Australia and identify predictors of deficiency in pregnancy. A cross-sectional study was conducted using linked data from statewide administrative data collections.
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Are low sun exposure and/or Vitamin D risk factors for type 1 diabetesEvidence supports that higher sun exposure and/or vitamin D sufficiency in pregnancy, or supplementation in early life, decreases type 1 diabetes risk
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High Vitamin D-Binding Protein Concentration, Low Albumin, and Mode of Remission Predict Relapse in Crohn's DiseaseAssociations between Vitamin D-binding protein, serum Vitamin D, and the calculated free Vitamin D concentrations with the risk of Crohn's disease flare