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    UV Light Linked to Prevention of Allergic Disease in Infants

    Child Health
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      Priyam last edited by

      Higher direct ultraviolet (UV) light exposure in the first 3 months of life was linked to lower incidence of proinflammatory immune markers and lower incidence of eczema in an early-stage double-blind, randomized controlled trial. Kristina Rueter, MD, with the University of Western Australia in Perth, who presented her team's findings on Sunday at the European Academy of Allergy and Clinical Immunology (EAACI) Hybrid Congress 2021, said their study is the first to demonstrate the association.

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        Udipta @Priyam last edited by

        @priyam Suboptimal vitamin D levels during infancy, lifestyle changes, nutritional changes, and living at higher latitudes have emerged as explanations. In this study, 195 high-risk newborns were randomized to receive oral vitamin D supplements (400 IU/day) or placebo until 6 months of age. Researchers found that UV light exposure appears more beneficial than vitamin D supplements as an allergy prevention strategy in the critical early years of immune system development. The researchers used a novel approach of attaching a personal UV dosimeter to the infants' clothing to measure direct UV light exposure (290-380 nm). Vitamin D levels were measured at 3, 6, 12, and 30 months of age. Immune function was assessed at 6 months of age, and food allergy, eczema, and wheeze were assessed at 6, 12, and 30 months of age.

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