The Role Of Phosphatidic Acid In Lipid Storage And Obesity
Funder
National Health and Medical Research Council
Funding Amount
$496,169.00
Summary
The prevalence of obesity and its related disorders has reached an alarming level in Australia and other developed countries. Obesity is characterized by the accumulation of fully-differentiated adipocytes loaded with lipid droplets (LDs). We aim to examine the role of phosphatidic acid in lipid droplet formation and adipocyte differentiation. Results from our proposed studies may offer novel therapeutic strategies against human obesity and type II diabetes.
Targeting The Class IIa Histone Deacetylases In Metabolic Disease
Funder
National Health and Medical Research Council
Funding Amount
$408,388.00
Summary
Dysfunctional metabolism in skeletal muscle is integral in the development of metabolic diseases, such as obesity and type 2 diabetes. This project will examine proteins that alter the way genes are expressed for their role in dysfunctional metabolism in muscle. This project could uncover new therapies for the treatment of metabolic diseases.
Identification Of The Mechanisms Of Lipotoxicity Within The Bone Marrow Milieu
Funder
National Health and Medical Research Council
Funding Amount
$416,007.00
Summary
Obesity and osteoporosis two major epidemics of our time. Bone and fat communicate with each other in two different ways. A hormonal communication links bone and fat in a positive manner. In contrast, at the local level, increasing levels of marrow fat with aging affect bone quality through the local release of toxic factors. We will identify these factors and will assess the potential reversibility of lipotoxicity in bone, as a new therapeutic approach to osteoporosis in the elderly.
Understanding The Role Of Class IIa Histone Deacetylases In Metabolic Disease
Funder
National Health and Medical Research Council
Funding Amount
$469,779.00
Summary
Dysfunctional metabolism in skeletal muscle is integral in the development of metabolic diseases, such as obesity and type 2 diabetes. This project will examine proteins that alter the way genes are expressed for their role in dysfunctional metabolism in muscle. This project could uncover new therapies for the treatment of metabolic diseases.
Role Of Lysosomal Acid Lipase In Regulating Insulin Secretion
Funder
National Health and Medical Research Council
Funding Amount
$570,928.00
Summary
Type 2 diabetes (T2D) affects 7% of Australians and is a major cause of morbidity and mortality. A failure of insulin secretion contributes to T2D, and this is linked to the inability of insulin producing ?-cells to use lipids appropriately (lipotoxicity). Here we will study the role of a cellular body called the lysosome to regulate ?-cell lipid metabolism and insulin secretion. This work will greatly increase the understanding of ?-cell failure in T2D.
Role Of Macrophages In Lipotoxic Beta Cell Failure
Funder
National Health and Medical Research Council
Funding Amount
$612,736.00
Summary
Type 2 diabetes (T2D) affects 7% of Australians and is a major cause of morbidity and mortality. A failure of insulin secretion contributes to T2D, and this is linked to the inability of insulin producing ?-cells to use lipids appropriately (lipotoxicity). Here we will study the role of the immune system and how this inhibits insulin secretion in T2D
Investigations Of Beta Cell Dysfunction And Death In Type 2 Diabetes
Funder
National Health and Medical Research Council
Funding Amount
$314,433.00
Summary
Diabetes is a disease that affects 100 million people worldwide and this number is expected to double in the next twenty years. This disease is characterised by high blood sugar levels which over prolonged periods of time can affect the function of the kidneys and eyes as well as causing heart attacks and strokes. A main contributing factor to diabetes is the inability of the pancreas to secrete insulin, the hormone that is responsible for keeping blood sugar levels in the normal range. The reas ....Diabetes is a disease that affects 100 million people worldwide and this number is expected to double in the next twenty years. This disease is characterised by high blood sugar levels which over prolonged periods of time can affect the function of the kidneys and eyes as well as causing heart attacks and strokes. A main contributing factor to diabetes is the inability of the pancreas to secrete insulin, the hormone that is responsible for keeping blood sugar levels in the normal range. The reason for this inability of the pancreas to secrete enough insulin is not known. It is known however, that both genetic and environmetal factors are responsible. The aim of this investigation is to determine the biochemical and genetic reason for decreased insulin secretion from an animal model of diabetes called DBA-2J mouse. Specifically we will be studying the effects of long-term increased sugar and fat on the function of the insulin producing cells of the pancreas, in order to identify the biochemical pathway responsible for reduced insulin secretion. In parallel we will be investigating the gene or genes in DBA-2J mice that are responsible for decreased insulin secretion and pancreatic cell death. This will provide clues as to the genes that may be responsible for diabetes in humans. This project will provide crucial information on the cause of reduced insulin secretion both at the cellular and genetic level, and will lead to a better understanding of the cause of diabetes.Read moreRead less
Mechanisms Of PKCepsilon-dependent Regulation Of Beta-cell Lipid Metabolism And Insulin Secretion
Funder
National Health and Medical Research Council
Funding Amount
$555,892.00
Summary
Lipid loading of the insulin-producing beta cells of the pancreas contributes to the onset of Type 2 diabetes, but the mechanisms are poorly understood. We have recently established that inhibiting the enzyme PKCe helps restore insulin secretion. By better defining the cellular role of PKCe we will clarify how insulin secretion is disrupted by fatty acids and cholesterol.