Quantitiative Assessment Of Solar UV Exposure For Vitamin D Synthesis In Australian Adults
Funder
National Health and Medical Research Council
Funding Amount
$1,162,536.00
Summary
This research program will add significantly to our current scientific understanding of the dual health outcomes of UV exposure (Vitamin D and skin cancer) . This project is in line with Australia's R and D Priorities, in that it will result in direct and indirect social and economic benefits to Australia by applying the scientific knowledge gained through this research to develop public health initiatives to improve some of Australia's most significant and costly health problems.
The main purpose of this study is to understand how airborne fungi affect asthmatics who are allergic to them. Fungi or moulds release large numbers of spores into the air that are inhaled. In many cases fungal spores outnumber other particles that carry allergen, such as pollens or cat dander, by 100 to 1. This makes fungi the most common potential allergen in the environment. Fungi have been associated with respiratory diseases including fungal sinusitis, asthma, rhinitis, allergic alveolitis ....The main purpose of this study is to understand how airborne fungi affect asthmatics who are allergic to them. Fungi or moulds release large numbers of spores into the air that are inhaled. In many cases fungal spores outnumber other particles that carry allergen, such as pollens or cat dander, by 100 to 1. This makes fungi the most common potential allergen in the environment. Fungi have been associated with respiratory diseases including fungal sinusitis, asthma, rhinitis, allergic alveolitis and sick building syndrome. Largely due to their diversity and complexity, allergenic fungi have not been well studied and the ways in which individuals vary when inhaling spores is not known. Unlike other allergenic particles, it is unlikely that fungal spores release their allergen as soon as they are inhaled because we have shown in earlier in vitro studies that fungi continue to release allergen over time and this is likely to be the case when they are inhaled. Our laboratory has developed two new techniques that allow us to measure how many spores people inhale and whether they are allergic to them. This study will use these tools to detect and identify the important allergenic fungi involved in domestic and outdoor exposure of asthmatics, the degree of contribution to the total allergen load to which subjects are exposed and identify in what conditions fungi are the causal agents in location-specific symptoms. This study will also investigate allergen production of fungi in situ in the human nose, which will have application in allergic sinusitis and asthma amongst other respiratory diseases. We will investigate how readily allergenic spores germinate in the nose and under what conditions they release allergen.Read moreRead less
Improving Skin Cancer Prevention: Motivating Preventive Behaviours Using Knowledge Of Personalised Genomic Risk Of Melanoma
Funder
National Health and Medical Research Council
Funding Amount
$1,041,720.00
Summary
The aim of our study is to evaluate whether we can improve the Australian public’s skin cancer prevention behaviours, particularly reducing exposure to ultraviolet (UV) radiation, by giving personalised information about melanoma genetic risk. We will also explore the psycho-social, ethical, and economic implications of receiving this information. The results of our study are likely to influence the future of skin cancer prevention in Australia.
The Role Of Vitamin D In Determining Risk Of Developing Juvenile Idiopathic Arthritis
Funder
National Health and Medical Research Council
Funding Amount
$586,485.00
Summary
Juvenile Idiopathic arthritis (JIA) is an autoimmune disease that occurs in up to 1/250 Australian children. Growing evidence suggests that low vitamin D increases risk of autoimmune disease, yet no-one has looked at its effect on JIA. We will compare vitamin D in blood, and also exposure to sun through life, between children with and without JIA. We will also look to see if vitamin D interacts with autoimmune disease risk genes. The outcomes of this study will help to inform policy on the impor ....Juvenile Idiopathic arthritis (JIA) is an autoimmune disease that occurs in up to 1/250 Australian children. Growing evidence suggests that low vitamin D increases risk of autoimmune disease, yet no-one has looked at its effect on JIA. We will compare vitamin D in blood, and also exposure to sun through life, between children with and without JIA. We will also look to see if vitamin D interacts with autoimmune disease risk genes. The outcomes of this study will help to inform policy on the importance of sun exposure to health.Read moreRead less
Susceptibility Of The Basal Layer Of Human Epidermis To UVA Oxidative Damage Due To Pheomelanin And Suboptimal DNA Repair
Funder
National Health and Medical Research Council
Funding Amount
$559,354.00
Summary
Australia has the highest incidence of skin cancer in the world. It is important to understand how sunlight causes skin cancer and the wavelengths involved in order to devise effective preventative and therapeutic strategies. Our proposal is that the cells in the skin that give rise to the most common forms of skin cancer, squamous cell carcinoma and basal cell carcinoma, are particularly vulnerable to UVA. We aim to study why this is the case and whether this vulnerability can be prevented.