Muscle Contracture In Multiple Sclerosis Prevalence And Rehabilitation
Funder
National Health and Medical Research Council
Funding Amount
$175,583.00
Summary
A population-based study of prevalence of muscle contracture will provide helpful information to health providers about the magnitude of the problem of contracture. This information will focus research efforts, and help health care providers to allocate resources appropriately. Recent studies have found that current treatments for contracture often provide transient or no effects. This project will test a promising new direction in treatment of contracture in people with multiple sclerosis.
Targeting Beta-adrenergic Signalling To Improve Muscle Regeneration In Muscular Dystrophy
Funder
National Health and Medical Research Council
Funding Amount
$473,224.00
Summary
Duchenne muscular dystrophy (DMD) is the most common and severe form of muscular dystrophy, caused by a lack of a protein called dystrophin. Dystrophic muscles are fragile, prone to injury, and have a compromised ability to regenerate after damage. Modulating pathways regulating beta-adrenergic signalling has potential to attenuate the dystrophic pathology and to delay the onset or slow the progression of the muscle wasting and weakness in muscular dystrophy.
The Role Of Notch Signalling In Muscular Dystrophy
Funder
National Health and Medical Research Council
Funding Amount
$526,878.00
Summary
Duchenne muscular dystrophy (DMD) is the most common and severe form of muscular dystrophy, caused by a lack of a protein called dystrophin. Dystrophic muscles are fragile, prone to injury, and have a compromised ability to regenerate after damage. Defective Notch signalling has been implicated in the poor regenerative response of aged muscles and similarly in dystrophy based on our preliminary data. Modulating Notch signalling could therefore delay the onset or slow the progression of DMD.
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.
Targeting The TGF-beta Signalling Pathway To Improve Muscle Growth And Development In Muscular Dystrophy
Funder
National Health and Medical Research Council
Funding Amount
$526,878.00
Summary
Duchenne muscular dystrophy (DMD) is the most common and severe form of muscular dystrophy. Dystrophic muscles are fragile, prone to injury, and do not regenerate well after injury. Modulating cell signalling pathways that are involved in muscle growth has the potential to attenuate the severity of the dystrophic pathology, to delay the onset or slow the progression of the muscle wasting and weakness, and to improve muscle growth and development in muscular diseases.
Characterization Of The FHL Protein Family In Striated Muscle
Funder
National Health and Medical Research Council
Funding Amount
$500,750.00
Summary
This grant examines the role of a family of muscle proteins, called FHL proteins, in skeletal and heart muscle. Inherited muscular disorders such as muscular dystrophy and myopathies, cause muscle weakness, which may be profound and lead to premature death due to respiratory muscle failure, or cause mild weakness later in life. The proteins which are defective in these muscular dystrophies are structural muscle proteins, which link and stabilize the contractile fibres in muscle and protect the m ....This grant examines the role of a family of muscle proteins, called FHL proteins, in skeletal and heart muscle. Inherited muscular disorders such as muscular dystrophy and myopathies, cause muscle weakness, which may be profound and lead to premature death due to respiratory muscle failure, or cause mild weakness later in life. The proteins which are defective in these muscular dystrophies are structural muscle proteins, which link and stabilize the contractile fibres in muscle and protect the muscle from the stresses and damage resulting from repeated muscular contraction. We have identified that the FHL proteins, which are the focus of this grant application, bind to and potentially regulate muscle proteins, which have been shown to cause forms of muscular dystrophy and cardiomyopathy. Examination of these interactions will provide insights into the biological mechanism of these muscle disorders. Furthermore, one of these proteins, FHL1 is significantly increased in hypertrophic cardiomyopathy, heart muscle thickening, a major cause of sudden cardiac death in young adults. We are creating transgenic mice, which make increased levels of FHL1 protein in their heart muscle, to determine whether increased FHL1, by itself is sufficient to promote heart muscle thickening. These studies should lead to further understanding of the development of diseases of heart and skeletal muscle, which may lead to novel treatments in the future.Read moreRead less
Characterisation Of A Novel Human Neuromuscular Disease Associated With Deficiency Of The Syntrophins And Dystrobrevin.
Funder
National Health and Medical Research Council
Funding Amount
$284,069.00
Summary
The muscular dystrophies are a group of hereditary muscle diseases which can result in severe and progressive muscle weakness. Children with muscular dystrophy have significant and worsening disabilities; many are unable to walk and, in severe cases, the weakness impairs the muscles of breathing resulting in death at an early age. The more common muscular dystrophies present in early childhood; however some forms of muscular dystrophy are so severe that muscle weakness is obvious at birth, affec ....The muscular dystrophies are a group of hereditary muscle diseases which can result in severe and progressive muscle weakness. Children with muscular dystrophy have significant and worsening disabilities; many are unable to walk and, in severe cases, the weakness impairs the muscles of breathing resulting in death at an early age. The more common muscular dystrophies present in early childhood; however some forms of muscular dystrophy are so severe that muscle weakness is obvious at birth, affected babies are never able to breathe adequately, and die during the first weeks of life. No specific treatment is currently available. Until recently the underlying gene and protein abnormalities resulting in the majority of cases of muscular dystrophy were unknown and hence definitive diagnosis and prenatal diagnosis was not possible. We have recently identified deficiency of a group of muscle proteins, the syntrophins and dystrobrevin, in 15 children with severe weakness, in whom the cause was previously unknown. This group of patients represent the first examples of a novel neuromuscular disorder. We will now identify the disease-causing genetic mutations in these patients and determine how abnormalities in these muscle proteins lead to muscle weakness and degeneration. This research will have immediate application to clinical practice as we will be able to give the childrens' families accurate information about the risk to future offspring and offer prenatal diagnosis. In addition, it will provide new and important information concerning the normal function of human skeletal muscle, which can be used to develop therapies for affected patients.Read moreRead less
Investigation Of Childhood Onset Distal Myopathy Myosin Variants
Funder
National Health and Medical Research Council
Funding Amount
$235,500.00
Summary
This project aims to continue the research of this laboratory into the distal myopathies, a group of largely enigmatic genetic disorders, which most severely affect selected distal limb muscles, in other words mostly hand and foot muscles. The project has two parts. The first part aims to determine what causes the childhood onset distal myopathy which we first identified in a West Australian family. We localised the disease gene in this family to chromosome 14 in the first linkage of a distal my ....This project aims to continue the research of this laboratory into the distal myopathies, a group of largely enigmatic genetic disorders, which most severely affect selected distal limb muscles, in other words mostly hand and foot muscles. The project has two parts. The first part aims to determine what causes the childhood onset distal myopathy which we first identified in a West Australian family. We localised the disease gene in this family to chromosome 14 in the first linkage of a distal myopathy and researching this family and similar families from Europe we may have identified the gene. This project aims to prove that the candidate disease gene is the disease gene. The second part of the project aims to investigate another unknown distal myopathy in another Australian family, to try to localise and identify this disease gene.Read moreRead less