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Research
Exposure to Solar UVR Suppresses Cell-Mediated Immunization Responses in Humans: The Australian Ultraviolet Radiation and Immunity StudyHigher UVR exposure at antigen sensitization was associated with a reduced delayed-type hypersensitivity response and altered T helper type 17 kinetics
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Clinical Evaluation and Diagnosis of Acute Rheumatic FeverThe diagnosis of acute rheumatic fever relies on a combination of clinical evaluation and laboratory studies. Diagnosis is usually made using the Jones criteria, which have recently been updated in 2015.
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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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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.
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Dietary pattern trajectories across adolescence and early adulthood and their associations with childhood and parental factorsAlthough adolescent dietary patterns tend to be of poor quality, it is unclear whether dietary patterns established in adolescence persist into adulthood. We examined trajectories across adolescence and early adulthood for 2 major dietary patterns and their associations with childhood and parental factors. Using data from the Western Australian Pregnancy Cohort (Raine Study), intakes of 38 food groups were estimated at ages 14, 17, 20 and 22 y in 1414 participants using evaluated FFQs.
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Pre-service teachers’ experiences with students impacted by trauma in the school settingExperiencing trauma may adversely impact a child’s education, and research in this field requires a deeper understanding about how those working in the education system, specifically pre-service teachers, can respond and support children impacted by trauma. Pre-service teachers, who are our future teachers, play a role in recognising and helping children when signs of trauma are revealed, but risk re-traumatising children if not adequately trained during their university education.
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Imaging of Abdominal Complications in Children With Acute Lymphoblastic LeukaemiaAcute lymphoblastic leukaemia (ALL) is the most common paediatric malignancy and remains one of the most common causes of cancer-related death in children and adolescents. Five-year overall survival rates now exceed 90% with current multidrug chemotherapeutic regimens.
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A cross-sectional audit of the Australian community food environment highlights the prominent role of chain food outletsFood retail and food service outlets can be part of a chain, or independently operated. Chain food outlets are likely to have the most influence over community food environments but have not been routinely identified in studies which map and monitor access to food, highlighting an important knowledge gap. This study aimed to identify the food retail and food service outlets present within metropolitan Perth, including presence of chain and independent food outlets; and examine differences across local governments.
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Suppression of TGF-β/SMAD signaling by an inner nuclear membrane phosphatase complexCytokines of the TGF-β superfamily control essential cell fate decisions via receptor regulated SMAD (R-SMAD) transcription factors. Ligand-induced R-SMAD phosphorylation in the cytosol triggers their activation and nuclear accumulation. We determine how R-SMADs are inactivated by dephosphorylation in the cell nucleus to counteract signaling by TGF-β superfamily ligands.
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The overlapping global distribution of dengue, chikungunya, Zika and yellow feverArboviruses transmitted mainly by Aedes (Stegomyia) aegypti and Ae. albopictus, including dengue, chikungunya, and Zika viruses, and yellow fever virus in urban settings, pose an escalating global threat. Existing risk maps, often hampered by surveillance biases, may underestimate or misrepresent the true distribution of these diseases and do not incorporate epidemiological similarities despite shared vector species.