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Research
Cellular and molecular mechanisms of vitamin D in food allergyEpidemiological evidence from the past decade suggests a role of vitamin D in food allergy pathogenesis
Research
Short-term changes in frequencies of circulating leukocytes associated with narrowband UVB phototherapy in people with clinically isolated syndromeSince B cells are increasingly targeted by MS therapies, the effects of narrowband UVB phototherapy in people with MS should be investigated further
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Characterising nitric oxide-mediated metabolic benefits of low-dose ultraviolet radiation in the mouse: a focus on brown adipose tissueNon-burning (low-dose) UVR suppresses the BAT 'whitening', steatotic and pro-diabetic effects of consuming a high-fat diet through skin release of nitric oxide
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The challenges of developing and optimising an assay to measure 25-hydroxyvitamin D in salivaWe have developed an LC-MS/MS assay that accurately measures saliva 25(OH)D3 levels, which correlated with serum levels
Research
Heat-mediated reduction of apoptosis in UVB-damaged keratinocytes in vitro and in human skin ex vivoUVB-induced p53-mediated cell cycle arrest and apoptosis are reduced in the presence of heat stress, leading to increased survival of DNA damaged cells
News & Events
UV offers new hope in fight against MSPeople at risk of developing multiple sclerosis (MS) have been offered a beacon of hope thanks to research into UV exposure.
News & Events
Vitamin D deficiency linked to childhood asthmaResearchers at The Kids Research Institute Australia have found children with vitamin D deficiency are more likely to develop asthma.
Research
Effects of UVR exposure on the gut microbiota of mice and humansBoth human and murine studies report that multiple exposures to sub-erythemal UV radiation can increase the diversity of the gut microbiome
Research
Vitamin D metabolites are lower with active Crohn’s disease and spontaneously recover with development of remissionWe aimed to characterise vitamin D metabolism in a cohort of patients with active and inactive Crohn’s disease
Research
FcgammaRIIb Expression Is Decreased on Naive and Marginal Zone-Like B Cells From Females With Multiple SclerosisB cells are critical to the development of multiple sclerosis (MS), but the mechanisms by which they contribute to the disease are poorly defined. We hypothesised that the expression of CD32b (FcγRIIb), a receptor for the Fc region of IgG with inhibitory activities in B cells, is lower on B cell subsets from people with clinically isolated syndrome (CIS) or MS. CD32b expression was highest on post-naive IgM+ B cell subsets in healthy controls. For females with MS or CIS, significantly lower CD32b expression was identified on IgM+ B cell subsets, including naive and IgMhi MZ-like B cells, when compared with control females. Lower CD32b expression on these B cell subsets was associated with detectable anti-Epstein Barr Virus viral capsid antigen IgM antibodies, and higher serum levels of B cell activating factor. To investigate the effects of lower CD32b expression, B cells were polyclonally activated in the presence of IgG immune complexes, with or without a CD32b blocking antibody, and the expression of TNF and IL-10 in B cell subsets was assessed.