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Research
Developmental regulation of type 1 and type 3 interferon production and risk for infant infections and asthma developmentType 1 and 3 interferon response capacity appears strongly developmentally constrained at birth
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Early Life Ovalbumin Sensitization and Aerosol Challenge for the Induction of Allergic Airway Inflammation in a BALB/c Murine ModelThis protocol adapted an experimental animal model of disease for sensitization to ovalbumin during the immediate post-weaning period beginning at 21 days of age
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Antibiotic Allergy Labels in Children Are Associated with Adverse Clinical OutcomesThis is the first study demonstrating the negative impact of antibiotic allergy labels on clinical outcomes in children
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Parents welcome follow-up using mobile devices: A survey of acceptability at an Australian tertiary paediatric centreWe surveyed 642 parents and carers at Perth Children's Hospital, targeting demographics, device ownership and attitudes towards electronic follow-up
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Assessing body sensations in children: Intra-rater reliability of assessment and effects of ageSomatosensory capacity increased with age for typically developing children aged 6–15 years
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Key steps in our journey to a COVID-19 vaccine programProviding a safe and effective coronavirus disease 2019 (COVID‐19) vaccination program is required to mitigate against the current and future negative impacts on the health and wellbeing of all Australians from COVID‐19. An effective vaccination program is a key element required to facilitate economic recovery, safe movement throughout and beyond Australia and a return to the quality of life previously experienced.
Research
ACE2 expression is elevated in airway epithelial cells from older and male healthy individuals but reduced in asthmaCOVID-19 is complicated by acute lung injury, and death in some individuals. It is caused by SARS-CoV-2 that requires the ACE2 receptor and serine proteases to enter AEC. We determined what factors are associated with ACE2 expression particularly in patients with asthma and COPD. We obtained lower AEC from 145 people from two independent cohorts, aged 2-89 years, Newcastle (n = 115) and Perth (n = 30), Australia. The Newcastle cohort was enriched with people with asthma (n = 37) and COPD (n = 38). Gene expression for ACE2 and other genes potentially associated with SARS-CoV-2 cell entry was assessed by qPCR, and protein expression was confirmed with immunohistochemistry on endobronchial biopsies and cultured AEC.
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Aging of preleukemic thymocytes drives CpG island hypermethylation in T-cell acute lymphoblastic leukemiaCancer cells display DNA hypermethylation at specific CpG islands in comparison to their normal healthy counterparts, but the mechanism that drives this so-called CpG island methylator phenotype (CIMP) remains poorly understood. Here, we show that CpG island methylation in human T-cell acute lymphoblastic leukemia (T-ALL) mainly occurs at promoters of Polycomb Repressor Complex 2 (PRC2) target genes that are not expressed in normal or malignant T-cells and which display a reciprocal association with H3K27me3 binding.
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Study protocol for a randomised controlled trial evaluating the effect of folic acid supplementation beyond the first trimester on maternal plasma unmetabolised folic acid in late gestationTaking folic acid containing supplements prior to and during early pregnancy reduces the risk of neural tube defects. Neural tube defects occur prior to 28 days postconception, after which, there is no proven benefit of continuing to take folic acid. However, many women continue to take folic acid containing supplements throughout the pregnancy.
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Mode of birth and risk of infection-related hospitalisation in childhood: A population cohort study of 7.17 million births from 4 high-income countriesThe proportion of births via cesarean section (CS) varies worldwide and in many countries exceeds WHO-recommended rates. Long-term health outcomes for children born by CS are poorly understood, but limited data suggest that CS is associated with increased infection-related hospitalisation. We investigated the relationship between mode of birth and childhood infection-related hospitalisation in high-income countries with varying CS rates.