PREVention Of Diabetes Through Lifestyle Intervention And Population Studies In Europe And Around The World
Funder
National Health and Medical Research Council
Funding Amount
$345,281.00
Summary
The PREVIEW Study will identify the most efficient lifestyle pattern for the prevention of type-2 diabetes in a population of pre-diabetic overweight or obese individuals. The project comprises two distinct lines of evidence, an intervention study and population studies. The focus will be on diet (specifically protein and glycemic index) and intensity of physical activity, as well as their interaction with the lifestyle factors, habitual stress, sleeping pattern, behavioural, environmental, cult ....The PREVIEW Study will identify the most efficient lifestyle pattern for the prevention of type-2 diabetes in a population of pre-diabetic overweight or obese individuals. The project comprises two distinct lines of evidence, an intervention study and population studies. The focus will be on diet (specifically protein and glycemic index) and intensity of physical activity, as well as their interaction with the lifestyle factors, habitual stress, sleeping pattern, behavioural, environmental, cultural, and socioeconomic variables.Read moreRead less
Can Exercise Early After Spinal Cord Injury Prevent Deterioration Of Muscle And Bone?
Funder
National Health and Medical Research Council
Funding Amount
$775,049.00
Summary
Spinal cord injury leads to a profound deterioration of the muscles and bones in the paralysed limbs. This project will examine the effects of exercising the paralysed limbs as early as possible after injury to prevent muscle and bone loss rather than restoring the tissues once changes have occurred. The time course and mechanisms underlying the microstructural decay of bone over the first year after injury will also be examined to provide a basis for determining fracture risk in this group.
Type 1 Diabetes And The Metabolic Syndrome: Defining This Modern-day Phenotype, And Exploring The Effects Of Exercise On Glycaemic Control And Both Traditional And Novel Diabetes Complications
Funder
National Health and Medical Research Council
Funding Amount
$122,714.00
Summary
This research aims to define trends in the prevalence of, and complications associated with, metabolic syndrome in adults with type 1 diabetes, using the Australian National Diabetes Information Audit and Benchmarking Initiative (ANDIAB). Subsequently, a randomised controlled trial will examine the effect of exercise on glycaemic control and diabetes complications risk profiles in this group. These studies will thus address disease profiles and a potential beneficial clinical intervention.
Bisphosphonate Therapy With Zoledronate Or Tenofovir Switching To Improve Low Bone Mineral Density In HIV-Infected Adults: A Strategic, Randomised Trial
Funder
National Health and Medical Research Council
Funding Amount
$716,300.00
Summary
Most HIV+ Australians receive tenofovir, a ‘preferred’ drug in all HIV treatment guidelines, and may do for decades, as HIV therapy is lifelong and because there are very few new HIV drugs. 40% of HIV+ adults have low bone density and HIV+ adults experience more fractures. Of all HIV drugs, tenofovir causes the most bone loss. This trial compares two approaches: a drug to improve bone density and switching tenofovir to another drug. This ‘treat versus switch’ approach is a world-first for HIV.
Nutrient And Hormone Delivery To Muscle: Interactions Between Insulin And Exercise
Funder
National Health and Medical Research Council
Funding Amount
$304,375.00
Summary
Exercise is known to be beneficial in the treatment and prevention of Type 2 diabetes and in particular muscle insulin resistance. Also, exercise and insulin share similar acute actions on muscle. Firstly, muscle contraction has a well established action to increase glucose uptake, and secondly, both muscle contraction and insulin act to increase capillary recruitment. This latter phenomenon is thought to enhance nutrient delivery and waste product removal. There is evidence that the increase in ....Exercise is known to be beneficial in the treatment and prevention of Type 2 diabetes and in particular muscle insulin resistance. Also, exercise and insulin share similar acute actions on muscle. Firstly, muscle contraction has a well established action to increase glucose uptake, and secondly, both muscle contraction and insulin act to increase capillary recruitment. This latter phenomenon is thought to enhance nutrient delivery and waste product removal. There is evidence that the increase in capillary flow due to muscle contraction is accompanied by increases in total blood flow. For insulin action we now have preliminary data to indicate that capillary recruitment occurs within a 5-10 min application of a physiologic dose of insulin independent of a change in total blood flow suggesting a redistribution of flow. Muscle contraction also increases capillary recruitment and it raises the question of whether similar mechanisms underlie insulin- and muscle contraction-induced capillary recruitment or whether there are distinct and complementary pathways. In this project we plan to define the mechanisms responsible for contraction- and insulin-induced capillary recruitment in muscle. We hypothesize that similar mechanisms are operative, with both insulin and muscle contractions acting via NO-dependent mechanisms. Because of capillary reserve, and different initial steps of the signalling systems stimulated by insulin and exercise, capillary recruitment by combined contraction and insulin stimuli will be additive at both sub maximal and perhaps at maximal insulin pathway stimulation. Signalling mechanisms will be compared and the role of non-nutritive route as a flow reserve assessed.Read moreRead less
A Novel Portable System For Day And Night Closed Loop Automated Insulin Delivery In The Patient With Type 1 Diabetes
Funder
National Health and Medical Research Council
Funding Amount
$251,133.00
Summary
For patients with Type 1 Diabetes, improved glucose control has been shown to reduce the development of diabetes complications. Although advances have been made in therapy, most people with diabetes do not achieve optimal treatment targets and the burden of care is high. Technologies now exist that allow the development of automatic insulin therapy and the artificial pancreas. These experiments will test a novel portable system that represents a significant step advancing toward this goal.