Effects Of Pin Biomechanics, Coating Material And Surface Roughness On The Pin-bone Interface In External Repair
Funder
National Health and Medical Research Council
Funding Amount
$470,000.00
Summary
Some fractures require external fixation, anchored with metal pins in the bone fragments. The reatment is generally successful, although the pin tracts often loosen and become infected. This complication may jeopardise fracture healing and must be treated. The purpose of this project is to determine what aspects of pin design predispose to these problems at the pin-bone interface. Is it the way the pins are initially inserted, perhaps not tightly enough so that the pin is unstable, or perhaps to ....Some fractures require external fixation, anchored with metal pins in the bone fragments. The reatment is generally successful, although the pin tracts often loosen and become infected. This complication may jeopardise fracture healing and must be treated. The purpose of this project is to determine what aspects of pin design predispose to these problems at the pin-bone interface. Is it the way the pins are initially inserted, perhaps not tightly enough so that the pin is unstable, or perhaps too tight, causing microcracks in the bone? Is it the material of the pin, which might be improved with a bioactive coating? Is it the surface roughness which causes different responses of bone cells? Would it help to have an antibiotic pin? This proposal is designed to answer these questions. The biomechanics of the pin will first be studied with computer models and then tested in the laboratory. The loosening and infection associated with different types of pin will then be studied biologically. The results of the study will clarify the roles of pin biomechanics, coating and surface roughness, leading to improvements in design and better outcomes in fracture patients.Read moreRead less
Development Of Monoclonal Antibody Therapy For Treating Wounds
Funder
National Health and Medical Research Council
Funding Amount
$573,354.00
Summary
Chronic wounds, diabetic ulcers, injuries in response to trauma, burns and scalds form a medical need which will only expand as the population ages and the diabetic epidemic grows. In our studies, we have shown that Flightless I (Flii), an actin-remodelling protein, is a negative regulator of wound healing. We are developing monoclonal antibodies as a new therapy for reducing Flii levels in wounds which leads to improved wound repair outcomes.
Pre-clinical Evaluation Of Nano-membrane Dressings To Promote Wound Healing
Funder
National Health and Medical Research Council
Funding Amount
$188,600.00
Summary
This project will investigate whether a novel type of wound dressing can promote faster wound healing and reduce scarring. Time taken to heal is one of the best predictors of whether a wound will heal with significant scarring. The faster wounds heal the better. We have identified a new dressing with specific nano-scale pores that may promote faster healing. This dressing will be tested in the best model of human wound healing with the potential to progress to clinical trials if successful.
Therapeutic Development Of A Novel EphA4 Antagonist For Spinal Cord Injuries
Funder
National Health and Medical Research Council
Funding Amount
$687,105.00
Summary
Spinal cord injuries impose a significant burden on patients and their carers. At present, there are no treatments for spinal cord injury that provide functional improvement. This research program will develop a novel therapeutic molecule, EphA4-Fc, which promotes axonal regeneration and delivers significant functional improvement. We will determine the most effective protocol for EphA4-Fc administration and the physiological and functional outcomes of these treatment regimes.
Development And Pre-clinical Evaluation Of A Novel Wound Dressing Treatment For Chronic Ulcers
Funder
National Health and Medical Research Council
Funding Amount
$125,040.00
Summary
Chronic leg ulcers are a common, painful and costly reality for many Australians, impacting on sufferers' mobility, social interactions and overall quality of life. This research is directed at developing a novel cost-effective wound dressing for treatment of this condition. This will be achieved through neutralising the ulcer's toxic proteolytic environment through an interactive wound dressing. This then will allow the body's own cells to promote wound healing.
Synthesis And Purification Of Flavivirus-specific Antiviral Factor Mrasal
Funder
National Health and Medical Research Council
Funding Amount
$140,000.00
Summary
In this proposal we suggest to develop an anti-flaviviral compound based on naturally occurring host factors associated with inborn flavivirus resistance observed in mice. We propose to synthesise and purify a mouse protein factor encoded by a gene (Mrasal), which we have previously mapped by mouse genetics and positional cloning to a narrow 300 kb chromosomal region on mouse chromosome 5 carrying flavivirus resistance locus (Flv). When this mouse gene was isolated, sub cloned into a mammalian e ....In this proposal we suggest to develop an anti-flaviviral compound based on naturally occurring host factors associated with inborn flavivirus resistance observed in mice. We propose to synthesise and purify a mouse protein factor encoded by a gene (Mrasal), which we have previously mapped by mouse genetics and positional cloning to a narrow 300 kb chromosomal region on mouse chromosome 5 carrying flavivirus resistance locus (Flv). When this mouse gene was isolated, sub cloned into a mammalian expression vector pcDNA3tag and transiently transfected and expressed in cos-7 and Vero cells, its product conferred antiviral effect to a flavivirus Murray Valley encephalitis (MVE), but not to a non-flavivirus encephalomyocarditis virus (EMCV). Mrasal protein operates as an antiviral host factor and confers a flavivirus specific resistance at the cellular level. It could be directly used for the treatment-cure of acute flavivirus infections in vivo. Our aims are to produce and purify the Mrasal protein for the in vivo delivery as a therapeutic compound into susceptible mice during the acute phase of flavivirus infection: 1. To synthesise and purify Mrasal protein using baculovirus system. 2. To encapsulate the protein into liposomes ready to be used in mice. 3. To perform initial testing in a limited number of susceptible mice.Read moreRead less