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Canberra, Australia

Shahnam A.,Australian National University | Samarawickrema I.,Australian National University | Ali S.,Canberra Hospital Canberra
Australasian Journal of Dermatology

Background/Objectives: To assess the sun-protection practices of undergraduates at the Australian National University. Methods: We sent emails with links to the questionnaire on the use of five sun-protection practices in the last fortnight of the summer to 3341 randomly selected students aged 18-24 years in this cross-sectional study. The response rate was 19% and 507 students met the inclusion criteria. Results: The sample consisted of 338 female and 169 male students with a mean age of 20.5 years (SD±1.9). Any method of sun protection was used always or often by 32% of respondents. The commonest method used was shade (58%) while the least common was wearing a hat (8%). Domestic students (44%) used sunglasses more than the international students (23%, P<0.05) and female students used sunscreen (48%) and sunglasses (37%) more than male students (33% and 23% respectively) (P<0.05). In the 22-24-year-old age group non-medical students (54%) used sunglasses more than the medical students (36%, P<0.05). Conclusions: Only a third of the sample practiced any method of sun protection and there were significant differences in the practices between subgroups, suggesting they were at an increased risk of sun damage. © 2015 The Australasian College of Dermatologists. Source

Fisher A.,Canberra Hospital Canberra | Fisher A.,Australian National University | Srikusalanukul W.,Canberra Hospital Canberra | Srikusalanukul W.,Australian National University | And 3 more authors.
International Journal of Endocrinology

Introduction. Experiments on genetically modified animals have discovered a complex cross-regulation between adipokines (leptin, adiponectin) and osteocalcin. The relationships between these molecules in human osteoporosis are still unclear. We evaluated the hypothesis of a bidirectional link between adipokines and osteocalcin. Materials and Methods. In a cross-sectional study of 294 older patients with osteoporotic hip fracture, we estimated serum concentrations of leptin, adiponectin, resistin, osteocalcin, parameters of mineral metabolism, and renal function. Results. After adjustment for multiple potential confounders, serum osteocalcin concentration was inversely associated with resistin and positively with leptin, leptin/resistin ratio, and adiponectin/resistin ratio. In multivariate regression models, osteocalcin was an independent predictor of serum leptin, resistin, leptin/resistin, and adiponectin/resistin ratios. Conclusions. Our data support the bidirectional regulation between osteocalcin and adipokines, but contrary to the genetically modified animal models, in older subjects with osteoporotic hip fracture, serum osteocalcin is positively associated with leptin and inversely with resistin. Copyright © 2012 Alexander Fisher et al. Source

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