Chronic Gastrointestinal Symptoms And Diabetes Mellitus: Risk Factors And Mechanisms
Funder
National Health and Medical Research Council
Funding Amount
$271,527.00
Summary
Why many people with diabetes mellitus are afflicted by gastrointestinal (GI) symptoms remains uncertain. Irreversible damage to the nerves controlling the gut (autonomic neuropathy) is often considered to be important. An alternative cause of increased GI symptomatology in diabetics is poor glucose control. Some studies have shown that acute shifts in glucose levels induce changes in the gut relevant to the onset of GI symptoms. For example, high glucose levels acutely cause slower stomach empt ....Why many people with diabetes mellitus are afflicted by gastrointestinal (GI) symptoms remains uncertain. Irreversible damage to the nerves controlling the gut (autonomic neuropathy) is often considered to be important. An alternative cause of increased GI symptomatology in diabetics is poor glucose control. Some studies have shown that acute shifts in glucose levels induce changes in the gut relevant to the onset of GI symptoms. For example, high glucose levels acutely cause slower stomach emptying times, leading to feelings of fullness. Though the effects of chronic glucose levels are yet to be properly explored, population data show that poor control in the long-term is related to an increase in symptoms. The aim of this prospective study is to determine the roles played by both autonomic neuropathy and glucose control in the development of GI symptoms among diabetics. All past research has been cross-sectional, and so cannot tell us if one or both of these factors cause GI problems in diabetes. For example, it is possible that autonomic neuropathy causes an increase in GI symptoms such as nausea and fullness, which in turn induces poor glucose control though lack of appetite or inadequate stomach emptying. Upon study inclusion, all study participants will undergo a series of autonomic tests. At 3 month intervals for a period of 30 months, they will be asked to complete a 2-week diary card detailing their GI symptoms and glucose readings, and also supply blood and urine samples for analysis twice each year. Two years from the study outset, participants will again complete the autonomic test series. Psychiatric co-morbidity will be investigated using the Composite Diagnostic Interview (CIDI-Auto) at the autonomic testing time points. The study will be undertaken at the Gastroenterology Research Unit at Nepean Hospital, in collaboration with the Royal Adelaide Hospital, centres with proven track records in diabetes investigation.Read moreRead less
Biomedical methods to prevent HIV include vaccines, gels used vaginally or rectally, oral medicines taken before or after potential exposure to HIV, and male and female condoms. We aim to investigate the impact of several such prevention methods, both on HIV transmission in Australia and on the behaviour of people using these technologies. Potential users' knowledge and attitudes towards such products will be explored. Results will contribute to the design of future HIV prevention studies.
Investigating Low Sun Exposure And Other Possible Early Life Determinants Of Type 1 Diabtes Mellitus
Funder
National Health and Medical Research Council
Funding Amount
$342,795.00
Summary
Type 1 diabetes mellitus is becoming more common among Australian children. The project explores aspects of the modern child's environment that may increase the risk of type 1 diabetes. In particular it aims to assess whether very low sun exposure in early life is adverse. Low sun exposure may be adverse because sun exposure -derived vitamin D is vital for the developing child's immune system. We need to know what level of sunlight and vitamin D children need to prevent disease.
I am an epidemiologist with expertise in infectious diseases. My research focuses on the risk behaviours associated with the transmission and prevention of blood borne viruses and sexually transmitted infections, in particular drug and alcohol-related ris
Molecular Epidemiology Of Neisseria Gonorrhoeae In Different Communities In Sydney, :informing Control Measures
Funder
National Health and Medical Research Council
Funding Amount
$22,677.00
Summary
Gonorrhoea is the second most common notifiable bacterial sexually transmitted disease (STD) in Australia. This project seeks to evaluate typing methods to identify transmission patterns of different strains of gonorrhea. The molecular strain typing methods and the antimicrobial resistance surveillance outcomes employed in this study when integrated with STD control strategies will provide pragmatic and cost effective approaches whereby the enhancement of HIV spread by STIs will be curtailed.