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Associations between sun exposure, skin pH, and epidermal permeability in pregnancy: A longitudinal observational study

Little 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.

Metagenomic Characterisation of the Gut Microbiome and Effect of Complementary Feeding on Bifidobacterium spp. in Australian Infants

Complementary feeding induces dramatic ecological shifts in the infant gut microbiota toward more diverse compositions and functional metabolic capacities, with potential implications for immune and metabolic health. The aim of this study was to examine whether the age at which solid foods are introduced differentially affects the microbiota in predominantly breastfed infants compared with predominantly formula-fed infants. 

Role of antenatal maternal diet

Nutrition is a modifiable lifestyle factor that may play a role in allergic disease prevention. This article summarizes current evidence on the antenatal diet as a consideration for strategies to prevent child food allergy. As eczema in early infancy substantially increases the risk of food allergy development, the effects of maternal dietary intakes during pregnancy on infant eczema outcomes will also be discussed.

Infant study shines new light on eczema prevention

A study led by The Kids Research Institute Australia has suggested vitamin D supplementation in babies is no match for sunlight when it comes to preventing eczema.

The influence of sunlight exposure and sun protecting behaviours on allergic outcomes in early childhood

The dramatic rise in allergic disease has occurred in tandem with recent environmental changes and increasing indoor lifestyle culture. While multifactorial, one consistent allergy risk factor has been reduced sunlight exposure. However, vitamin D supplementation studies have been disappointing in preventing allergy, raising possible independent effects of ultraviolet (UV) light exposure.

Circulating Epithelial Cell Cytokines Are Associated With Early-Onset Atopic Dermatitis

Debbie Susan Palmer Prescott BSc BND PhD MBBS BMedSci PhD FRACP Head, Nutrition in Early Life Honorary Research Fellow debbie.palmer@uwa.edu.au

Lower Cord Blood IL-17 and IL-25, but Not Other Epithelial Cell-Derived Cytokines Are Associated with Atopic Dermatitis in Infancy

There is a growing need for early biomarkers that may predict the development of atopic dermatitis (AD). As alterations in skin barrier may be a primary event in disease pathogenesis, epithelial cell (EC) cytokines expression patterns may be a potential biomarker in early life to target allergy preventive strategies towards "at-risk" infants. The aim of this longitudinal investigation was to examine from birth over the course of infancy levels of the EC cytokines: thymic stromal lymphopoietin (TSLP), interleukin (IL)-33, IL-25, and IL-17 in infants at high-risk of AD due to maternal atopy.

In “high-risk” infants with sufficient vitamin d status at birth, infant vitamin D supplementation had no effect on allergy outcomes: A randomized controlled trial

Early infancy oral vitamin D supplementation does not appear to reduce the development of early childhood allergic disease

Analytical bias in the measurement of plasma 25-hydroxyvitamin D concentrations in infants

To our knowledge, this is the first study to show that the reported 25(OH)D concentration may be influenced by both age and assay type

Maternal dietary intake in pregnancy and lactation and allergic disease outcomes in offspring

As the prevalence of allergic disease dramatically rises worldwide, prevention strategies are increasingly being considered.