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Mechanical Mobility Of The Thorax For Continuous Determination Of Lung Gas Volume
Funder
National Health and Medical Research Council
Funding Amount
$165,000.00
Summary
Percussion is a valuable clinical method for physical examination of parts of the body. A sharp tap (impulsive force) is applied to the body wall and the sound radiated in response is observed. This sound may be dull (over liver) or stony dull (pleural effusion), or resonant (over normal lung) or hyper-resonant (over bowel). While the variation in radiated sound is not fully understood, it is apparent that the presence of gas, which is highly compliant, increases mobility of the overlying tissue ....Percussion is a valuable clinical method for physical examination of parts of the body. A sharp tap (impulsive force) is applied to the body wall and the sound radiated in response is observed. This sound may be dull (over liver) or stony dull (pleural effusion), or resonant (over normal lung) or hyper-resonant (over bowel). While the variation in radiated sound is not fully understood, it is apparent that the presence of gas, which is highly compliant, increases mobility of the overlying tissue and allows it to resonate; where the sub-tissue is largely fluid, tissue mobility is low and the percussive sound is dull. Percussion is useful for examining the adult chest and lung, but cannot for example be applied in infant intensive care as only limited impulsive force can be used, and the adult finger, which is both a coupling device and sounding board, is too large. As well, percussion requires skill and quiet conditions. Accordingly, we developed a device to measure mobility of the chest and other tissues in real time. The VibroPulse applies a known low-level force to the body surface and records the resultant velocity induced in the surface. The force is generated by a vibrating mass set in motion by an electromagnetic motor driven by pseudo-random noise. Tissue mobility, defined as velocity-force, is derived simultaneously across the frequency range, providing an easily interpreted quantitative output unaffected by ambient noise. This proposal has two aims we can achieve in 1 year: (1) to continue evaluating VibroPulse sensitivity to tissue composition, using symmetrical percussive sites on the human chest and abdomen that are dull on one side and resonant on the other, and the chest of anaesthetised animals with experimentally induced pneumothorax and lung collapse, two life-threatening conditions for which percussion is a key diagnostic method, and (2) to engineer a small device from our bulky prototype that is suitable for clinical use, in infants and adults.Read moreRead less
Production Of A Novel Humanised Anti Dendritic Cell Therapeutic Antibody For Graft Versus Host Disease
Funder
National Health and Medical Research Council
Funding Amount
$202,500.00
Summary
A transplant of bone marrow or other source of blood stem cells from a donor is often used to treat leukaemia patients whose disease has failed to respond to chemotherapy. The Mater Medical Research Institute has developed a world first dendritic cell depleting therapeutic antibody which may open a new strategy for the control of acute graft versus host disease, which is a very common and often fatal complication of bone marrow transplantation. The new antibody treatment is also likely to be use ....A transplant of bone marrow or other source of blood stem cells from a donor is often used to treat leukaemia patients whose disease has failed to respond to chemotherapy. The Mater Medical Research Institute has developed a world first dendritic cell depleting therapeutic antibody which may open a new strategy for the control of acute graft versus host disease, which is a very common and often fatal complication of bone marrow transplantation. The new antibody treatment is also likely to be useful for the prevention of rejection in solid organ transplantation. If successful, it will selectively control graft versus host disease, without compromising the essential anti-viral immunity and desired anti-leukemia activity of the graft.Read moreRead less
Novel Methods For Promoting Organ Development And Growth
Funder
National Health and Medical Research Council
Funding Amount
$390,203.00
Summary
A revolutionary new therapy for treatment of growth restricted fetuses and premature babies is being developed through the administration of Colony Stimulating Factor (CSF-1). We have evidence that CSF-1 therapy can promote kidneys and lungs to continue development and maturation after birth. This exciting new finding allows for the application of CSF-1 therapy for both the treatment of premature babies and unborn babies with kidney defects.