The Role Of Angiotensin Converting Enzyme 2 In Diabetic Complications
Funder
National Health and Medical Research Council
Funding Amount
$453,144.00
Summary
Most heart attacks and strokes arise from narrowing of the arteries. This process is regulated by a number of hormonal pathways. One of the most important is the renin angiotensin system. Our group has demonstrated important changes in this pathway which play a pivotal role in regulating the development of atherosclerosis and its response to treatment. It is predicted that these studies will provide critical information to develop innovative treatment strategies for cardiovascular disease.
Role Of Chromatin Remodelling In Diabetic Renal And Vascular Complications: In Vivo Studies
Funder
National Health and Medical Research Council
Funding Amount
$474,618.00
Summary
Even after diabetics return to improved blood glucose levels after a period of poor blood glucose control, the kidney and blood vessel complications progress. The cause of this metabolic memory remains unexplained. This proposal focuses on sustained changes as a result of prior glucose levels in proteins called histones that are part of the wrapping of DNA. Using a new technique called carrier ChIP we will study histone modifications in the blood vessels and kidneys in diabetes.
Cytosolic Oxidative Disturbances As A Source Of Mitochondrial Dysfunction In Diabetic Nephropathy
Funder
National Health and Medical Research Council
Funding Amount
$505,786.00
Summary
There is a critical need to identify new therapies for the growing number of patients with diabetic kidney disease. Current medicines only retard progressive disease. Our studies investigate defects in the power houses of the cell, the mitochondria. These defects cause generation of toxic free oxygen radicals which eventually starve the cell of energy production. Therefore, reversal of mitochondrial defects in diabetic kidney disease may be a novel therapeutic target.
Growth Factors And Their Effect On MicroRNAs And Transcription Factors In Tubulointerstitial Fibrosis In Diabetes
Funder
National Health and Medical Research Council
Funding Amount
$490,202.00
Summary
A common cause of kidney disease is diabetes and is partly related to increased expression and action of growth factors such as CTGF. These factors promote the deposition of scar tissue in the kidney by acting on a novel class of intracellular regulator molecules called microRNAs, to change the cell's characteristics such that cells begin laying down excess collagen. This proposal will focus on how growth factors act on microRNAs and the role of microRNAs in diabetic kidney disease.
Normoalbuminuric And Albuminuric Pathways To Renal Insufficiency In Type 2 Diabetes
Funder
National Health and Medical Research Council
Funding Amount
$288,900.00
Summary
Up to one third of patients with type 2 diabetes develop kidney disease (diabetic nephropathy). An increase in protein excretion in the urine (albuminuria) is usually the first sign of kidney disease. Albuminuria usually progresses from normal levels to an intermediate phase (microalbuminuria) lasting 5-10 years and is then followed by overt nephropathy (macroalbuminuria). It has been traditionally believed that onset of a decline in kidney function, measured as glomerular filtration rate, accom ....Up to one third of patients with type 2 diabetes develop kidney disease (diabetic nephropathy). An increase in protein excretion in the urine (albuminuria) is usually the first sign of kidney disease. Albuminuria usually progresses from normal levels to an intermediate phase (microalbuminuria) lasting 5-10 years and is then followed by overt nephropathy (macroalbuminuria). It has been traditionally believed that onset of a decline in kidney function, measured as glomerular filtration rate, accompanies the development of diabetic kidney disease. However, recent studies by our group have shown that about one quarter of patients with type 2 diabetes have impaired kidney function without an increase in albuminuria. This raises the possibility that an alternate non-albuminuric pathway leads to kidney disease in a subgroup of patients with type 2 diabetes. This study will compare kidney structure and function in patients with type 2 diabetes and impaired kidney function with or without increases in albuminuria. The comparison will be accompanied by measurements of the rate of decline in kidney function over 5 years or more, in subjects with or without increases in albuminuria in order to confirm that kidney function may decline independently of albuminuria. The demonstration of alternate mechanisms of renal injury has the potential to identify new targets for the treatment of kidney disease in patients with type 2 diabetes.Read moreRead less
To Improve The Accuracy And Precision Of Estimated GRF (eGFR) Measurements In Indigenous Australians
Funder
National Health and Medical Research Council
Funding Amount
$959,349.00
Summary
There is an overwhelming burden of chronic disease in Indigenous Australians. In order to attempt to improve kidney disease in this high-risk population, it is vital that we are able to accurately measure kidney function. This study will provide evidence to accurately assess kidney function in Indigenous Australians. This will then enable development of appropriate clinical guidelines and more effective monitoring of future interventions to slow progression of kidney disease.