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Achieving More Effective Weight Loss With Intermittent Energy Restriction
Funder
National Health and Medical Research Council
Funding Amount
$1,373,874.00
Summary
Part of the difficulty in achieving lasting weight loss is that the body responds to dieting with compensatory changes in appetite, metabolic rate & blood hormone levels. We have shown in men that alternating phases of energy restriction with periods of greater food intake markedly improves weight loss by overcoming this “famine reaction”. This study will examine if the intermittent diet also produces more effective weight loss in women, and whether it is applicable to the wider community.
Age- And Energy-status Dependent-plasticity Of Glucose Sensing, Orexigenic NPY Neurons: The Glucose-ghrelin Balance
Funder
National Health and Medical Research Council
Funding Amount
$578,641.00
Summary
Our research aims to identify how specific brain cells detect changes in glucose levels and how ageing and diet affect their function. We identified a subset of nerve cells that detect changes in glucose and the “hunger” hormone ghrelin, their ability to do so adapting with age and nutritional status. This project will investigate the potential of these nerve cells as targets for therapeutic and diet- intervention strategies to target obesity, diabetes and promote healthy ageing
Brain Glucose-sensing: Age- And Energy-status-dependent Plasticity Of Function-specific Pro-opiomelanocortin (POMC) Glucose-sensing Neurons In The Arcuate Nucleus Of The Hypothalamus
Funder
National Health and Medical Research Council
Funding Amount
$495,071.00
Summary
Obesity and ageing predispose individuals to diabetes, the health and socio-economic implications of which posing significant challenges for Australia in the foreseeable future. Research outlined here aims to identify novel mechanisms enabling brain cells to detect changes in glucose and how ageing and diet affect the function of these nerves. We believe this research could provide novel therapeutic and early diet-based intervention strategies for diabetes and obesity.
NPY Coordination Of Energy Balance And Physical Activity
Funder
National Health and Medical Research Council
Funding Amount
$844,596.00
Summary
Anorexia nervosa (AN) is an eating disorder characterized by behavioral alterations, restrictive eating leading to extremely low body weight. AN is also associated with a paradoxical hyperactivity representing a failure of the brain to adjust activity to energy status. Here we aim to investigate the role of the Neuropeptide Y (NPY), a known regulator of homeostatic control and activity in the development of hyperactivity in AN, thus help to identify NPY-targeted therapeutics for AN treatment.
The Bioactivity And Binding Partners Of Irukandji And Box Jellyfish Venom
Funder
National Health and Medical Research Council
Funding Amount
$596,950.00
Summary
Venom from the Box Jellyfish and Irukandji jellyfish are considered the most leathal known to science yet precious little is known on the nature of these secretions or how they harm humans. This study aims to fully characterise bioactive proteins in jellyfish venom and attempt to block their activity using regulatory-approved and experimental drugs.
The Dengue Virus Glycoprotein NS1 Binds Cholesterol And Mediates Cellular Activation
Funder
National Health and Medical Research Council
Funding Amount
$632,029.00
Summary
Cholesterol has been shown to play a vital role in the life cycle of many viruses. This project will investigate the basis of dengue virus interaction with this important host molecule and along with investigations of how dengue is able to stimulate host cells, will provide new insights into the way these viruses cause severe disease. Findings from this study will also aid in the development of new drug strategies for dengue and related viruses such as West Nile virus.
Protein Prenylation And Inflammation: New Insights Into The Pathophysiology And Treatment Of Mevalonate Kinase Deficiency
Funder
National Health and Medical Research Council
Funding Amount
$715,755.00
Summary
This project is focused on a genetic, potentially fatal, inflammatory disease that appears in infancy. We have developed a new way of detecting the underlying defect as well as the first animal models that have the same genetic mutations and mimic the disease. With these revolutionary new approaches, we will discover the exact cause of the inflammation, test a new way of diagnosing the disease, and identify new and better therapies that treat the underlying cause rather than just the symptoms.
Positive And Negative Selection In The Germinal Centre Reaction
Funder
National Health and Medical Research Council
Funding Amount
$1,289,965.00
Summary
We will investigate the processes that control the production of antibodies by the immune system. In particular, we will determine how the immune system is normally prevented from producing autoantibodies that target the body's own cells and how this fails in the case of autoimmune diseases such as lupus. Targeted studies of a new type of "rogue" white blood cell we have identified will also provide important clues on how autoantibody-producing cells escape and cause autoimmune disease.
Targeting Autophagy As A Means Of Control Of Cytokine Production In SLE
Funder
National Health and Medical Research Council
Funding Amount
$616,518.00
Summary
Systemic lupus erythematosus (SLE, or lupus) is a common immune disease that causes organ damage and loss of life, chiefly affecting young women. There is no cure for SLE. We have discovered that a natural process called 'autophagy' could be a way to limit inflammation during SLE. In this project we will discover whether this could lead to a new way to treat this disease.
The Regulation Of IgE Antibody Production By Antigen-specific B Cells
Funder
National Health and Medical Research Council
Funding Amount
$454,105.00
Summary
Asthma and other allergies are caused by the inappropriate production of IgE antibodies by the immune system. IgE is not produced in response to most infections but the controls that normally prevent IgE production are unknown. We have identified two separate molecules that prevent IgE production during immune responses. In this proposal we aim to investigate how these controls work. This information may help to devise strategies for controlling IgE production and therefore allergic disease.