Excitation-contraction Coupling In Skeletal Muscle In Health, Exercise And Disease
Funder
National Health and Medical Research Council
Funding Amount
$623,621.00
Summary
Skeletal muscle dysfunction occurs in certain diseases, aging and exercise, and can deleteriously affect lifestyle and mobility. This project investigates the molecular mechanisms involved in the complex sequence of events that occur in each individual muscle fibre, starting from stimulation by a nerve through to the fibre contracting. This should give information about causes of skeletal muscle dysfunction in myotonia, heart failure and other situations, and help development of therapies.
Femoroacetabular impingement (FAI) is a common cause of hip pain characterised by extra bone formation at the hip, called a cam-deformity. FAI is thought to create hip joint damage and osteoarthritis. Our 5 year longitudinal study of people with FAI in two (Melbourne and Brisbane) sites will investigate whether factors (such as cam-deformity size, hip contact force, muscle strength and joint range) can predict hip joint damage (measured with magnetic resonance imaging) over two years.
BRAIN Training Trial: Balance, Resistance, Or INterval Training Trial: A Randomised Controlled Trial Of Three Exercise Modalities In Mild Cognitive Impairment
Funder
National Health and Medical Research Council
Funding Amount
$2,016,192.00
Summary
About 10% of older adults have mild changes in memory or thinking (Mild Cognitive Impairment, or MCI) which don’t interfere with daily life, but increase the risk of dementia. Exercise may improve thinking abilities, but the best kind of exercise is not clear. We will randomise 530 older adults with MCI in Australia, Canada, and Israel to weight lifting, high intensity aerobic training or toning exercises for 12 months to see which prescription is best for brain health and overall function.
Functional Electrical Stimulation Assisted Cycling (eStimCycle):A Novel Intervention To Improve Outcomes In The Critically Ill
Funder
National Health and Medical Research Council
Funding Amount
$868,811.00
Summary
The legacy of critical illness leaves millions of survivors worldwide with long lasting deficits in physical and brain function as well as anxiety, depression and post-traumatic stress disorder. Early rehabilitation may prevent or minimise these effects. This study evaluates the effectiveness of functional electrical stimulation of muscles with assisted in-bed cycling (eStimCycle) on muscle bulk, strength, physical and brain function at hospital discharge, 6 and 12 months.
Improving Mobility After Traumatic Brain Injury With Ballistic Strength Training
Funder
National Health and Medical Research Council
Funding Amount
$661,430.00
Summary
Traumatic Brain Injury (TBI) is the leading cause of disability amongst young adults, many of whom have difficulty walking. Muscle weakness is the main cause of these walking problems, but previous trials have failed to improve walking performance. We have developed new strengthening exercises which focus on how quickly the muscles can contract, rather than just how strong they are. These exercises can increase muscle power by 60-74% and are likely to improve people’s ability to walk.
Monitoring Bone Loss And Response To Therapy Through Bone Material And Structural Composition
Funder
National Health and Medical Research Council
Funding Amount
$696,111.00
Summary
Millions of scripts are filled for treatment of osteoporosis. However, there is no way of knowing if these drugs are right for these individuals, if it improves bone strength or are actually doing harm. Bone density measurement is of limited value. We have developed a new analysis method that measures changes in bone structure that tell us if the treatment is or is not working so alternative treatment can be used. The aim of this study is to test this new method.
The L-type Calcium Channel As A Reporter Of Successful Morpholino Oligomer Therapy In Treatment Of Duchenne Muscular Dystrophy Cardiomyopathy
Funder
National Health and Medical Research Council
Funding Amount
$595,062.00
Summary
Duchenne Muscular Dystrophy is a fatal muscle wasting disorder. We have previously characterised how the heart fails in a mouse model of muscular dystrophy. We now have preliminary data demonstrating that treatment of mice with morpholino oligomers can rescue cardiac function. This project will fully characterise the effect of the treatment on heart function and optimise therapy regimes with the view to utilising the optimised protocol as a guideline in treating cardiomyopathy in Duchenne Muscul ....Duchenne Muscular Dystrophy is a fatal muscle wasting disorder. We have previously characterised how the heart fails in a mouse model of muscular dystrophy. We now have preliminary data demonstrating that treatment of mice with morpholino oligomers can rescue cardiac function. This project will fully characterise the effect of the treatment on heart function and optimise therapy regimes with the view to utilising the optimised protocol as a guideline in treating cardiomyopathy in Duchenne Muscular Dystrophy boys.Read moreRead less
Defining The Role Of Glycosylation In Basement Membrane Failure During Muscular Dystrophy
Funder
National Health and Medical Research Council
Funding Amount
$824,664.00
Summary
This project aims to utilize mutations within the zebrafish fkrp gene to understand the pathogenic basis of the human diseases associated with mutation of this gene which results in a spectrum of muscular dystrophies. By generating models of alleles that represent the range of phenotypes seen in humans we will have a directly translatable model system to human pathology.
Dysferlin And The Emergency Vesicle Fusion Of Membrane Repair
Funder
National Health and Medical Research Council
Funding Amount
$481,496.00
Summary
Membrane repair is a vital cell survival mechanism of all eukaryotic cells, using calcium-triggered vesicle fusion to ‘patch’ membrane ruptures. The muscular dystrophy protein dysferlin is a key mediator of membrane repair, although, exactly how dysferlin mends membranes has been unclear. We show that the calcium that floods through membrane tears, activates a group of enzymes called calpains, that specifically cleave dysferlin to release a specialist vesicle-fusion module for membrane repair.
Modelling Laminin Mediated Adhesion And Congenital Muscular Dystrophy In Zebrafish
Funder
National Health and Medical Research Council
Funding Amount
$586,076.00
Summary
Congenital Muscular Dystrophy (CMD) is a muscle wasting conditions arising from mutations in the Lamina alpha 2 gene (lama2) gene. We have established zebrafish as a model system in which to determine the mechanistic basis of CMD pathology. We have isolated mutations in the zebrafish Lama2 gene and have determined that Lama2-deficient zebrafish accurately model the human condition. We aim to use the advantages of the zebrafish system to model treatments for muscular dystrophy