Interactions Between Advanced Glycation And Oxidative Stress In Diabetic Renal And Cardiac Complications
Funder
National Health and Medical Research Council
Funding Amount
$431,700.00
Summary
Kidney and heart disease are serious complications of diabetes. These complications are the major cause of disability and premature death in the western world. Studies from our group and others have shown that diabetic complications appear to be a consequence of a number of different processes. These pathways include a sugar dependent pathway of irreversible interactions between proteins such as collagen and sugar known as advanced glycation. The process of advanced glycation alters the body's a ....Kidney and heart disease are serious complications of diabetes. These complications are the major cause of disability and premature death in the western world. Studies from our group and others have shown that diabetic complications appear to be a consequence of a number of different processes. These pathways include a sugar dependent pathway of irreversible interactions between proteins such as collagen and sugar known as advanced glycation. The process of advanced glycation alters the body's ability to renew these protein, hence causing accelration of the ageing process. In fact, it is estimated that this process occurs almost fifty times faster in diabetes. These sticky complexes accumulate in tissues causing disruption ot the normal tissue structure. Our group has a drug which can act as scissors and cut the sticky sugar off the proteins allowing it to be turned over. Unfortunately this does not fix all of the damage. These AGE molecules are involved in a number of other harmful processes including the production of toxic oxygen derived molecules which are harmful byproducts of diabetes. While these oxygen 'radicals' have been implicated in heart attack and stroke their source has remained a mystery in diabetes. Previously, the only way to remove these molecules was to mop them up with antioxidants such as Vitamin E. Antioxidants work slowly and so some damage is already done before they 'detoxify' these oxygen radicals. We propose to use combinations of medicines to see if we can achieve more effective protection against these processes in experimental diabetes. This may provide new therapies for threatment of kidney and heart disease in diabetes.Read moreRead less
Carolyn Sue is a neurologist and scientist investigating the role of disturbed mitochondrial function in human disease. Mitochondria play a key role in maintaining energy levels and the cell’s health. When this function is impaired, cells may degenerate or die, and thus cause human disease. Dr Sue’s research is aimed at seeking improved treatments to treat mitochondrial disease and to further understanding about how brain cells degenerate when the mitochondria fail.
Functional Genomic Analyses Of Mitochondrial Disorders
Funder
National Health and Medical Research Council
Funding Amount
$577,001.00
Summary
Mitochondria produce most of the energy required by our bodies. Mutations in genes that make mitochondrial proteins cause mitochondrial dysfunction and lead to neurodegenerative and muscular diseases. We will identify mutations in mitochondrial genes in members of different Bulgarian and Gypsy families and discovery the mechanisms by which the mutations lead to disease.
Mitochondrial Enzyme Regulates RNA Metabolism In Health And Disease
Funder
National Health and Medical Research Council
Funding Amount
$67,381.00
Summary
Mitochondria are microscopic, energy producing machines that are found in all human cells. Mitochondria contain a small set of genes that must work properly to make the energy our bodies require for health. Defects in the expression of genes coding for mitochondrial proteins causes debilitating diseases for which there are effective treatments. I will investigate how a mitochondrial protein whose dysfunction is known to cause a metabolic disease regulates mitochondrial gene expression.
Regulation Of RNA Processing In The Mitochondrial Disease MELAS
Funder
National Health and Medical Research Council
Funding Amount
$520,977.00
Summary
Mitochondria are microscopic, energy producing machines that are found in all human cells. Mitochondria contain a small set of genes that must work properly to make the energy our bodies require for health. Defects in the expression of mitochondrial genes cause debilitating diseases for which there are currently no cures. We have developed a new set of technologies that will be applied to understand how these mutations cause disease and provide insights into possible treatments.
Regulation Of Mitochondrial Gene Expression In Disease
Funder
National Health and Medical Research Council
Funding Amount
$697,209.00
Summary
Mitochondria are microscopic powerplants that produce most of the energy in cells. Genes that make mitochondrial proteins must work properly to make the energy our bodies require for health. Defects in the expression of mitochondrial genes cause debilitating diseases for which there are no cures currently. A/Prof Filipovska will use new technologies to understand how these mutations cause disease and develop therapeutics for treatments of diseases caused by defects in mitochondrial genes.
The Role Of Mitochondrial Dysfunction In Metabolic Disease
Funder
National Health and Medical Research Council
Funding Amount
$61,383.00
Summary
We have previously found that PTCD1 can regulate mitochondrial gene expression and metabolism in cells (Mercer et al., 2011 and Lopez Sanchez et al., 2011). There is still much to learn about the mitochondria and their DNA. Charactering PTCD1, a protein that has previously seen little research, will enable us to elucidate the role of this protein in mitochondria and energy metabolism in an effort to increase understanding of obesity and type 2 diabetes.
Mitophagy And Mitochondrial Biogenesis In Mitochondrial Disease
Funder
National Health and Medical Research Council
Funding Amount
$307,946.00
Summary
Mutations in mitochondrial DNA and nuclear encoded mitochondrial genes cause mitochondrial disease, with one in every 250 Australians carrying a pathogenic mutation. In this project, we will further define the basic function of mitophagy (process that results in the recycling of defective mitochondria) and mitochondrial biogenesis (production of new mitochondria). Additionally, experimentally induced enhancement of mitophagy or biogenesis will be assessed as a potential therapy for patients with ....Mutations in mitochondrial DNA and nuclear encoded mitochondrial genes cause mitochondrial disease, with one in every 250 Australians carrying a pathogenic mutation. In this project, we will further define the basic function of mitophagy (process that results in the recycling of defective mitochondria) and mitochondrial biogenesis (production of new mitochondria). Additionally, experimentally induced enhancement of mitophagy or biogenesis will be assessed as a potential therapy for patients with mitochondrial disease.Read moreRead less
Recognising And Improving Management Outcomes Of Adult Patients With Mitochondrial Diseases
Funder
National Health and Medical Research Council
Funding Amount
$87,199.00
Summary
Mitochondrial diseases comprise the most common diagnostic group amongst neuromuscular and neurogenetic diseases, but are not well known in the community, with no established standards of management. The Study aims to devise strategies to deliver better care for patients with mitochondrial diseases, from their screening and diagnosis, continued monitoring and prognostication, to the potential treatment and promotion of a better management paradigm; as well as facilitation of ongoing research int ....Mitochondrial diseases comprise the most common diagnostic group amongst neuromuscular and neurogenetic diseases, but are not well known in the community, with no established standards of management. The Study aims to devise strategies to deliver better care for patients with mitochondrial diseases, from their screening and diagnosis, continued monitoring and prognostication, to the potential treatment and promotion of a better management paradigm; as well as facilitation of ongoing research into the management of patients with these diseases.Read moreRead less