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Impaired calcium influx underlies skewed T helper cell differentiation in children with IgE-mediated food allergies

Reasons for Th2 skewing in IgE-mediated food allergies remains unclear. Clinical observations suggest impaired T cell activation may drive Th2 responses evidenced by increased atopic manifestations in liver transplant patients on tacrolimus (a calcineurin inhibitor). We aimed to assess differentiation potential, T cell activation and calcium influx of naïve CD4+ T cells in children with IgE-mediated food allergies. 

Influence of maternal and infant technology use and other family factors on infant development

Steve Desiree Zubrick Silva FASSA, FAAMHS, MSc AM PhD MBBS, FRACP, MPH, PhD Honorary Emeritus Research Fellow Co-Director, ORIGINS 08 6319 1409

Macronutrients in Human Milk and Early Childhood Growth—Is Protein the Main Driver?

Infant growth trajectories reflect current health status and may predict future obesity and metabolic diseases. Human milk is tailored to support optimal infant growth. However, nutrient intake rather than milk composition more accurately predicts growth outcomes. Although the role of protein leverage in infant growth is unclear, protein intake is important for early infancy growth.

The role of family and maternal factors in childhood obesity

The aim of this study was to investigate the relationship between a child's weight and a broad range of family and maternal factors.

The effects of maternal smoking on early mucosal immunity and sensitization at 12 months of age

In this study, we examined the effects of maternal smoking as a major adverse exposure in early life, on mucosal immune function and allergen sensitization...

A Family's Journey at JHC: Analyses of routinely collected data

Desiree Silva MBBS, FRACP, MPH, PhD Co-Director, ORIGINS desiree.silva@thekids.org.au Co-Head, The ORIGINS Project Professor Desiree Silva is

PKC activation promotes maturation of cord blood T cells towards a Th1 IFN-γ propensity

A significant number of babies present transiently with low protein kinase C zeta (PKCζ) levels in cord blood T cells, associated with reduced ability to transition from a neonatal Th2 to a mature Th1 cytokine bias, leading to a higher risk of developing allergic sensitisation, compared to neonates whose T cells have 'normal' PKCζ levels. However, the importance of PKCζ signalling in regulating their differentiation from a Th2 to a Th1 cytokine phenotype propensity remains undefined.

Beyond Plants: The Ultra-Processing of Global Diets Is Harming the Health of People, Places, and Planet

Global food systems are a central issue for personal and planetary health in the Anthropocene. One aspect of major concern is the dramatic global spread of ultra-processed convenience foods in the last 75 years, which is linked with the rising human burden of disease and growing sustainability and environmental health challenges.

Increasing emergency department visits for anaphylaxis in very early childhood: A canary in the coal mine

The incidence of anaphylaxis is increasing globally in tandem with changing environmental and lifestyle factors. There is very limited data on very early childhood presentations. We aim to assess changes in rates, characteristics and management of infant anaphylaxis in a paediatric ED over a 15-year period.

Conservation of gene expression patterns between the amniotic and nasal epithelium at birth

Amniotic epithelial cells are fetal-derived stem cells, capable of differentiating into all three germ layers, including mature epithelial cell populations. Here, we hypothesised that the amniotic epithelium might serve as a surrogate tissue source for investigating transcriptional profiles in the respiratory epithelium of newborns.