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Time spent outdoors through childhood and adolescence - assessed by 25-hydroxyvitamin D concentration - and risk of myopia at 20 years

To investigate the relationship between time spent outdoors, at particular ages in childhood and adolescence, and myopia status in young adulthood using serum 25-hydroxyvitamin D [25(OH)D] concentration as a biomarker of time spent outdoors. Participants of the Raine Study Generation 2 cohort had 25(OH)D concentrations measured at the 6-, 14-, 17- and 20-year follow-ups. Participants underwent cycloplegic autorefraction at age 20 years, and myopia was defined as a mean spherical equivalent -0.50 dioptres or more myopic. Logistic regression was used to analyse the association between risk of myopia at age 20 years and age-specific 25(OH)D concentrations. Linear mixed-effects models were used to analyse trajectory of 25(OH)D concentrations from 6 to 20 years.

Timing of routine infant vaccinations and risk of food allergy and eczema at one year of age

There was no overall association between delayed DTaP and food allergy; however, children with delayed DTaP had less eczema and less use of eczema medication

Differential gene network analysis for the identification of asthma-associated therapeutic targets in allergen-specific T-helper memory responses

Differential network analysis of allergen-induced CD4 T cell responses can unmask covert disease-associated genes and pin point novel therapeutic targets

Mapping changes in immune cell populations in gestational tissues over the course of pregnancy

This is a strategic “pilot” project in which we are seeking basic information on the immune cell content of gestational tissues.

The interaction of genetic and environmental contributions to immunological traits and their association with atopic disease remain unclear. Flow cytometry and in vitro cytokine responses were used to characterize immune profiles from 93 school-aged twin pairs. Using an established twin pair analytical strategy, the genetic and environmental influences on immunological traits were evaluated, along with their association with atopy. Our findings suggest strong genetic influence on several traits, particularly B cell abundance. In contrast, cytokine responses from in vitro stimulations appeared mainly shaped by environmental exposures.

Restricted aeroallergen access to airway mucosal dendritic cells in vivo limits allergen-specific

Chronic innocuous aeroallergen exposure attenuates CD4+ T cell-mediated airways hyperresponsiveness in mice; however, the mechanism(s) remain unclear

Protection against severe infant lower respiratory tract infections by immune training: Mechanistic studies

Results from recent clinical studies suggest potential efficacy of immune training (IT)-based approaches for protection against severe lower respiratory tract infections in infants, but underlying mechanisms are unclear.

Progressive increase of FcεRI expression across several PBMC subsets is associated with atopy and atopic asthma within school-aged children

The expression pattern of FcεRI on DC and basophils differentiates asthmatic from non-asthmatic atopic children

Atopy-dependent and independent immune responses in the heightened severity of atopics to respiratory viral infections: Rat model studies

The co-exposure responses in the Th2high BN incorporated type I interferon/Th1, alternative macrophage activation/Th2 and Th17 signatures

Functional differences in airway dendritic cells determine susceptibility to IgE-sensitization

Respiratory IgE-sensitization to innocuous antigens increases the risk for developing diseases such as allergic asthma.