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Respiratory Syncytial Virus Strain Evolution and Mutations in Western Australia in the Context of Nirsevimab ProphylaxisNirsevimab is a long-acting monoclonal antibody used to prevent respiratory syncytial virus (RSV) infection in infants and high-risk children. During the 2024 RSV season in Western Australia, 21 922 doses were administered to infants entering their first season and 1221 doses to at-risk children. In this context, the selection and spread of escape variants are a potential concern. This study aimed to investigate nirsevimab binding site mutations using clinical and wastewater data.
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DYRK1A regulates B cell acute lymphoblastic leukemia through phosphorylation of FOXO1 and STAT3DYRK1A is a serine/threonine kinase encoded on human chromosome 21 (HSA21) that has been implicated in several pathologies of Down syndrome (DS), including cognitive deficits and Alzheimer's disease. Although children with DS are predisposed to developing leukemia, especially B cell acute lymphoblastic leukemia (B-ALL), the HSA21 genes that contribute to malignancies remain largely undefined. Here, we report that DYRK1A is overexpressed and required for B-ALL. Genetic and pharmacologic inhibition of DYRK1A decreased leukemic cell expansion and suppressed B-ALL development in vitro and in vivo.
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Early moderate prenatal alcohol exposure and maternal diet impact offspring DNA methylation across speciesAlcohol consumption in pregnancy can affect genome regulation in the developing offspring but results have been contradictory. We employed a physiologically relevant murine model of short-term moderate prenatal alcohol exposure resembling common patterns of alcohol consumption in pregnancy in humans.
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“You can't heal yourself in that setting and you wouldn't expect other people in this country to”: Yarning about housing and environmental health in remote Aboriginal communitiesRemote Aboriginal communities in Australia are located on traditional lands holding deep cultural significance and meaning for residents. However, systemic inequity rooted in colonisation has driven persistent housing and health disparities, with inadequate environmental health conditions within homes and communities a prominent example.
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Children's views on outdoor advertising of unhealthy food and beverages near schoolsChildren are often exposed to unhealthy outdoor food advertisements during the school commute. This exposure can have negative public health consequences given childhood weight gain has been linked to the marketing of energy-dense and nutrient-poor foods. This study aimed to explore schoolchildren's lived experiences and attitudes towards outdoor advertising surrounding their schools.
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Development of a sustained release implant of benzathine penicillin G for secondary prophylaxis of rheumatic heart diseaseRegular intramuscular (i.m.) benzathine penicillin G (BPG) injections have been the cornerstone of rheumatic heart disease (RHD) secondary prophylaxis since the 1950s. Patient adherence to IM BPG is poor, largely due to pain, the need for regular injections every 3-4 weeks and health sector delivery challenges in resource-limited settings. There is an urgent need for new approaches for secondary prophylaxis, such as an implant which could provide sustained penicillin concentrations for more than 6 months.
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Seasonal and regional patterns of lower leg cellulitis in Western AustraliaIn the warmer tropical regions of WA no seasonality was observed, but overall incidence of LLC presentations were higher
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The risk of intramuscular haematoma is low following injection of benzathine penicillin G in patients receiving concomitant anticoagulant therapyOur local data supports continuing intramuscular injection of BPG in patients with rheumatic heart disease receiving anticoagulant medication
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Activation of Hedgehog signaling by the oncogenic RELA fusion reveals a primary cilia-dependent vulnerability in supratentorial ependymomaSupratentorial RELA fusion (ST-RELA) ependymomas (EPNs) are resistant tumors without an approved chemotherapeutic treatment. Unfortunately, the molecular mechanisms that lead to chemoresistance traits of ST-RELA remain elusive. The aim of this study was to assess RELA fusion-dependent signaling modules, specifically the role of the Hedgehog (Hh) pathway as a novel targetable vulnerability in ST-RELA.
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The Role of Cannabinoids as Anticancer Agents in Pediatric OncologyCannabinoids are a group of chemicals that bind to receptors in the human body and, in turn, modulate the endocannabinoid system (ECS). They can be endogenously produced, synthetic, or derived from the plant Cannabis sativa L. Research over the past several decades has shown that the ECS is a cellular communication network essential to maintain multiple biological functions and the homeostasis of the body. Indeed, cannabinoids have been shown to influence a wide variety of biological effects, including memory, pain, reproduction, bone remodeling or immunity, to name a few. Unsurprisingly, given these broad physiological effects, alterations of the ECS have been found in different diseases, including cancer.