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The predisposition to food allergy development and the induction of allergen-specific immune responses appears to be initiated early in infancy. Early exposure to food allergens, such as peanut and cashew nut, via human milk is likely important in initiating oral tolerance and reducing risk of food allergy development. This trial aims to determine if the risk of developing peanut and cashew nut allergy during infancy can be reduced by a high peanut and cashew nut maternal diet during lactation.
Common food allergens have been detected in breast milk with wide inter-individual variations in concentrations. As maternal factors, such as age, smoking, and body mass index have been associated with breast milk composition, we aimed to identify maternal characteristics associated with the concentration of food allergens in breast milk.
The Australasian Society of Clinical Immunology and Allergy (ASCIA) Guideline: Infant Feeding for Food Allergy Prevention is an update of the 2016 ASCIA guideline. This updated guideline provides recommendations specifically in relation to infant feeding for food allergy prevention.
Australia has one of the highest rates of food allergy, anaphylaxis hospital admissions and anaphylaxis fatalities worldwide. These trends and sustained advocacy prompted a 2019 Parliamentary Inquiry into Allergies and Anaphylaxis. Among 250 submissions, the Centre for Food Allergy Research called for a national research-coordinating centre and comprehensive allergy research funding.
Pregnant women are advised to take folic acid (FA) supplements before conception and during the first trimester of pregnancy. Many women continue FA supplementation throughout pregnancy, and concerns have been raised about associations between excessive FA intake and adverse maternal and child health outcomes.
Iron deficiency (ID) is the most common nutritional deficiency affecting young children. Serum ferritin concentration is the preferred biomarker for measuring iron status because it reflects iron stores; however, blood collection can be distressing for young children and can be logistically difficult. A noninvasive means to measure iron status would be attractive to either diagnose or screen for ID in young children.
Infant allergy is the most common early manifestation of an increasing propensity for inflammation and immune dysregulation in modern environments. Refined low-fibre diets are a major risk for inflammatory diseases through adverse effects on the composition and function of gut microbiota. This has focused attention on the potential of prebiotic dietary fibres to favourably change gut microbiota, for local and systemic anti-inflammatory effects.
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.
Debbie Susan Palmer Prescott BSc BND PhD MBBS BMedSci PhD FRACP Head, Nutrition in Early Life Honorary Research Fellow debbie.palmer@uwa.edu.au
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.