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IRF7-Associated Immunophenotypes Have Dichotomous Responses to Virus/Allergen Coexposure and OM-85-Induced Reprogramming

High risk for virus-induced asthma exacerbations in children is associated with an IRF7lo immunophenotype, but the underlying mechanisms are unclear. Here, we applied a Systems Biology approach to an animal model comprising rat strains manifesting high versus low susceptibility to experimental asthma, induced by virus/allergen coexposure, to elucidate the mechanism(s)-of-action of the high-risk asthma immunophenotype.

Intrauterine Growth Restriction Promotes Postnatal Airway Hyperresponsiveness Independent of Allergic Disease

Intrauterine growth restriction (IUGR) is associated with asthma. Murine models of IUGR have altered airway responsiveness in the absence of any inflammatory exposure. Given that a primary feature of asthma is airway inflammation, IUGR-affected individuals may develop more substantial respiratory impairment if subsequently exposed to an allergen. This study used a maternal hypoxia-induced mouse model of IUGR to determine the combined effects of IUGR and allergy on airway responsiveness.

Maternal high fat diet compromises survival and modulates lung development of offspring, and impairs lung function of dams

While maternal high fat diet compromised litter survival, it also promoted somatic and lung growth (increased lung volume) in the offspring

Transplacental immune modulation with a bacterial-derived agent protects against allergic airway inflammation

These data provide proof of concept supporting the rationale for developing transplacental immune reprogramming approaches for primary disease prevention

Independent and combined effects of airway remodelling and allergy on airway responsiveness

There was a positive relationship between the thickness of the airway smooth muscle layer with airway responsiveness, which was shifted upward in the presence of allergy

Foetal growth restriction in mice modifies postnatal airway responsiveness in an age and sex-dependent manner

Our data demonstrate changes in airway responsiveness as a result of intrauterine growth restriction that could influence susceptibility to asthma development

Fragranced consumer products: effects on asthmatic Australians

Most asthmatics would prefer workplaces, healthcare facilities, and environments that are fragrance-free, which could help reduce adverse effects

The effects of electronic cigarette aerosol exposure on inflammation and lung function in mice

This study shows, for the first time, that exposure to e-cigarette aerosol during adolescence and early adulthood is not harmless to the lungs and can result in significant impairments in lung function.

Optical coherence tomography-based contact indentation for diaphragm mechanics in a mouse model of transforming growth factor alpha induced lung disease

This study tested the utility of optical coherence tomography-based indentation to assess mechanical properties of respiratory tissues in disease

Biodiesel exhaust-induced cytotoxicity and proinflammatory mediator production in human airway epithelial cells

Our results show that canola biodiesel exhaust exposure elicits inflammation and reduces viability of human epithelial cell cultures in vitro when compared...