Ghrelin Receptor Signaling In The Brain Links Hunger To Mood And Motivation
Funder
National Health and Medical Research Council
Funding Amount
$721,909.00
Summary
Cells in the brain that respond to hunger may also promote obsessive compulsive behaviours often associated with mental illness, such as anorexia nervosa. This grant examines how the signals from the body inform the brain of hunger. Specially we examine if overactivity of hunger cells, in the absence of appropriate food intake can increase behaviours associated with mental illness.
This project is about the way that the brain controls reproduction. It is important because there is no known cause for infertility in a significant number people with such a problem. The project should inform us on new ways to manage particular forms of reproductive failure.
Gonadotropin Inhibitory Hormone (GnIH); A Negative Regulator Of Reproduction
Funder
National Health and Medical Research Council
Funding Amount
$752,936.00
Summary
Gonadotropin inhibitory hormone (GnIH) is a short peptide of 8 amino acids that is produced by the brain and acts in a negative manner on brain and pituitary cells that control reproduction. This project aims to elucidate the role of GnIH in normal physiology and in states of stress and negative metabolic state. Work will be carried out in various species to define the function of the peptide and also to investigate ways that it can be utilised to prevent reproduction.
Cardiovascular Effects Of Enhanced Leptin Signalling
Funder
National Health and Medical Research Council
Funding Amount
$1,200,972.00
Summary
Leptin treatment causes weight loss, but leptin also increases blood pressure. We wish to determine if increasing leptin signalling, by modifying signal transduction pathways within leptin sensitive cells in the brain, can reduce weight without increasing blood pressure.
Defining Reciprocal Neural Circuits That Regulate Appetite And Memory
Funder
National Health and Medical Research Council
Funding Amount
$341,935.00
Summary
How we remember meals influences how much we eat at later time points. This kind of memory likely comes from both the traditional brain areas associated with memory formation, and from areas associated with regulating appetite. How these two brain regions work together to help animals remember what they ate, where they found it, and whether they liked it is not known. This project investigates how these memories are formed and how they are used by animals to make decisions about future meals.
Several natural chemicals in the brain and gut that regulate food intake and body weight have been identified. Their actions in regulating these processes are achieved through a complex yet little understood interaction with various molecules and receptors which leads to a cascade of reactions in the central nervous system. The aim if this PhD project is to elucidate the mechanisms of these interacting molecules to develop novel and effective leads for the prevention and treatment of obesity.
Evaluation Of Functional Protein Molecules In Treating Obesity
Funder
National Health and Medical Research Council
Funding Amount
$349,407.00
Summary
This project aims to reduce excessive food consumption by controlling the satisfaction that people get from eating. This will be achieved through varying protein supplements (whey, leucine and beta-conglycinin) and their combinations. The idea is that people will feel satisfied despite eating less, leading to weight loss and the correction of related metabolic disorders.
The Differential Innervation Of Fat - Potential To Target Visceral Adiposity
Funder
National Health and Medical Research Council
Funding Amount
$486,818.00
Summary
Levels of abdominal fat are closely correlated with metabolic syndrome. We propose experiments to identify unique characteristics (neurotransmitters or receptors) of neurons deep in the brain that project specifically to this type of fat or other less harmful subcutaneous fat. We can then test the functional significance of these unique elements in animal experimets involving gene knockdown or pharmacological approaches to modify their function and test the effect on fat distribution