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Working Out For The Thin Blue Line: Evaluating Exercise To Improve Physical And Mental Health Of Police Officers With Posttraumatic Stress Disorder
Funder
National Health and Medical Research Council
Funding Amount
$318,768.00
Summary
Through their occupation, Police Officers are at high risk of experiencing posttraumatic stress disorder (PTSD). This fellowship aims to investigate the impact of structured exercise in order to reduce the severity of symptoms, promote recovery and improve overall physical health. A clinical trial will be conducted using exercise in addition to routine treatment as usual, among NSW Police Officers diagnosed with PTSD.
MicroRNA serves as critical factors in diverse biological events. However, it remains poorly understood how microRNAs contribute to the regulation of lifespan and age-associated changes, such as alterations in metabolic activity and an increased incidence of disorders. We aim to understand how microRNAs regulate stress response pathways and caloric restriction-mediated lifespan extension using the nematode Caenorhabditis elegans, an excellent model organism for ageing biology.
Targeting Chromosomal Instability By Metabolic Stress
Funder
National Health and Medical Research Council
Funding Amount
$612,652.00
Summary
The most intractable cancers gain and lose DNA as they grow, making them highly variable and drug resistant. We have found that mild disruptions to their use of energy can specifically kill cells with this kind of genetic instability. In this project we will characterize the mechanism by which metabolic stress affects cell division and the survival of genetically unstable cells. Our objective is to find treatments with no effects on normal cells that eliminate unstably dividing cancer cells.
My projects are associated with three research themes: psychological stress, obesity and hypertension. While these projects may appear diverse they are linked, both in terms of the significant co morbidity that they share, and that the underlying pathologies are initiated and sustained, at least in part, by disturbances in sympathetic nervous regulation. My research program will focus on these conditions and, in their content, will aim to develop and implement improved treatment srategies in the ....My projects are associated with three research themes: psychological stress, obesity and hypertension. While these projects may appear diverse they are linked, both in terms of the significant co morbidity that they share, and that the underlying pathologies are initiated and sustained, at least in part, by disturbances in sympathetic nervous regulation. My research program will focus on these conditions and, in their content, will aim to develop and implement improved treatment srategies in these areas of major clinical need.Read moreRead less
The AMP-activated protein kinase (AMPK) is a metabolic stress-sensing enzyme responsible for matching energy supply to energy demand by the many different cells in our bodies. AMPK is active in the heart, where it may control cardiac function and the response of the heart to disease. It has been difficult to study AMPK in the heart because we lack drugs that block the actions of AMPK. This study will investigate the role of AMPK in the heart using a genetic approach whereby the AMPK enzyme is re ....The AMP-activated protein kinase (AMPK) is a metabolic stress-sensing enzyme responsible for matching energy supply to energy demand by the many different cells in our bodies. AMPK is active in the heart, where it may control cardiac function and the response of the heart to disease. It has been difficult to study AMPK in the heart because we lack drugs that block the actions of AMPK. This study will investigate the role of AMPK in the heart using a genetic approach whereby the AMPK enzyme is rendered inactive (a gene knockout approach). By this approach we will learn how AMPK controls heart function and how drugs that affect AMPK may impact on the heart.Read moreRead less
Physiological Effects Of Manipulating AMP-activated Kinase Genes
Funder
National Health and Medical Research Council
Funding Amount
$351,110.00
Summary
The AMP-activated protein kinase is a metabolic stress sensing protein kinase responsible for matching the supply of energy to the body's functions. During vigorous exercise it senses metabolic stress (reduction in energy) caused by muscle contraction and stimulates glucose uptake and burning of fat to provide energy. The AMP-activated protein kinase also regulates the production of nitric oxide that is important in controlling blood pressure and blood clotting. Reduced caloric intake activates ....The AMP-activated protein kinase is a metabolic stress sensing protein kinase responsible for matching the supply of energy to the body's functions. During vigorous exercise it senses metabolic stress (reduction in energy) caused by muscle contraction and stimulates glucose uptake and burning of fat to provide energy. The AMP-activated protein kinase also regulates the production of nitric oxide that is important in controlling blood pressure and blood clotting. Reduced caloric intake activates the AMP-activated protein kinase to suppress energy consuming activities and modify the expression of genes. Many of the conditions that activate the AMP-activated protein kinase (exercise, reduced caloric intake) are associated with a healthy life style, increased longevity and resistance to age onset diseases including cardiovascular disease (atherosclerosis, hypertension), obesity, neurodegeneration and diabetes. By manipulating the gene for the AMP-activated protein kinase in mice we expect to learn more about its key physiological roles and give new insight into the control of age onset diseases.Read moreRead less
Physiological Effects Of Manipulating AMPK Signalling Genes
Funder
National Health and Medical Research Council
Funding Amount
$377,250.00
Summary
The AMP activated protein kinase is a metabolic stress sensing protein kinase responsible for matching the supply of energy to the body's functions. During exercise it senses metabolic stress (reduction in energy) caused by muscle contraction and switches on metabolic processes to restore energy. This includes stimulating glucose uptake and burning fat. With training the AMP activated protein kinase also controls genes to adapt the body to future exercise. Reducing caloric intake activates the A ....The AMP activated protein kinase is a metabolic stress sensing protein kinase responsible for matching the supply of energy to the body's functions. During exercise it senses metabolic stress (reduction in energy) caused by muscle contraction and switches on metabolic processes to restore energy. This includes stimulating glucose uptake and burning fat. With training the AMP activated protein kinase also controls genes to adapt the body to future exercise. Reducing caloric intake activates the AMP activated protein kinase to suppress energy consuming activities and modify the expression of genes. This enzyme is a powerful regulator of lipid metabolism, inhibiting both cholesterol and triglyceride synthesis. Many conditions that activate the AMP activated protein kinase (exercise, reduced caloric intake) are associated with a healthy lifestyle, increased longevity and resistance to age onset diseases including cardiovascular disease (atherosclerosis, hypertension), obesity, neurodegeneration and diabetes. It has been found that metformin and rosiglitizone, major drugs used to treat people with type II diabetes activate the AMP activated protein kinase. By manipulating the genes for the AMP-activated protein kinase in mice we expect to gain new insights into the physiological roles of this enzyme and how it functions to protect the body from age onset diseases.Read moreRead less
Stress and obesity can lead to high blood pressure and greatly increase the risk of life threatening cardiovascular events. This application seeks to determine which chemicals and parts of the brain are responsible for amplifying the responses to repeated stress and during obesity in animal models leading to hypertension.