A Novel Sensory Nerve Stimulator To Improve Neuropathy In Patients With Diabetes
Funder
National Health and Medical Research Council
Funding Amount
$407,924.00
Summary
We have developed a painless, self-applied, cheap, battery powered electrical stimulation treatment that improves sensory nerve function in some people with diabetic peripheral neuropathy. We have tested this technique in laboratory animals and in people with diabetes and have shown it is effective in some. We now propose to test this technique in a large sample of people similar to the participants in the successful group of our pilot study - 55-65 year old people with diabetes of shorter durat ....We have developed a painless, self-applied, cheap, battery powered electrical stimulation treatment that improves sensory nerve function in some people with diabetic peripheral neuropathy. We have tested this technique in laboratory animals and in people with diabetes and have shown it is effective in some. We now propose to test this technique in a large sample of people similar to the participants in the successful group of our pilot study - 55-65 year old people with diabetes of shorter duration. In addition, older people up to 75 years of age, with up to 10 years duration of diabetes will be included separately. If successful, the electrical stimulation could improve sensation leading to fewer ulcerations and amputations. Much suffering and expense would be avoided. - The magnitude of reduction in suffering and expense can be judged from the fact that people with diabetes have 15 times the risk of amputation as do people without diabetes. In Australia half of non-traumatic amputations are done to people with diabetes. Foot ulcers precede amputations in most cases, and in themselves cause much suffering and expense. Australia needs to act on this now because, if current trends continue, the number of people with diabetes will increase as the population ages. -The number of people aged over 65 will increase from around 2.3 million at present to over 6 million in the next half century. The increase in those over 85 will be even more marked with numbers increasing four fold to over one million people. Diabetes affects approximately 23% of people aged 75 or older.Read moreRead less
Osteocytes (OY) are the most abundant cell type in bone whose high density and viability are essential for healthy bone. We have found that vitamin K, vitamin D and strontium, promote human OY differentiation. We will test these in novel models of human OY differentiation and survival, and in animal models of bone loss associated with vitamin D deficiency, menopause and glucocorticoid treatment. Our work will lead to a better understanding of human OY and give a new approach to treat osteoporosi ....Osteocytes (OY) are the most abundant cell type in bone whose high density and viability are essential for healthy bone. We have found that vitamin K, vitamin D and strontium, promote human OY differentiation. We will test these in novel models of human OY differentiation and survival, and in animal models of bone loss associated with vitamin D deficiency, menopause and glucocorticoid treatment. Our work will lead to a better understanding of human OY and give a new approach to treat osteoporosis.Read moreRead less
The Role Of Mitochondrial DNA In Age-related Hearing Loss
Funder
National Health and Medical Research Council
Funding Amount
$260,475.00
Summary
Hearing loss is an extremely common and under-studied age-related disability, affecting 39% of Australians aged 50 years or older. Both genetic and environmental factors may contribute to the development of age-related hearing loss. Human genetic material (DNA) resides in two places in body cells; the nucleus and in organelles called mitochondria. This is due to the fact that mitochondria were derived from bacteria that were engulfed by the cell back in primordial life. Although this genetic mat ....Hearing loss is an extremely common and under-studied age-related disability, affecting 39% of Australians aged 50 years or older. Both genetic and environmental factors may contribute to the development of age-related hearing loss. Human genetic material (DNA) resides in two places in body cells; the nucleus and in organelles called mitochondria. This is due to the fact that mitochondria were derived from bacteria that were engulfed by the cell back in primordial life. Although this genetic material is different to nuclear DNA, it has an essential role in helping to provide energy for the cell. Genetic mutations in the DNA residing in the mitochondria have been associated with a number of conditions, usually affecting tissues that require large amounts of energy, such as the brain, muscle, heart, retina and the cochlea of the ear. The commonest clinical manifestation of mitochondrial disease is thought to be hearing loss. This project investigates the role that abnormal mitochondrial DNA plays in the development of hearing impairment by studying subjects from a representative Australian community who participated in a large population study of hearing loss. We will assess whether different sectors of mitochondrial DNA predispose particular individuals to the development of hearing loss or accelerate its onset. The Blue Mountains Hearing Study is able to take into account other factors known to be associated with hearing loss (industrial noise exposure, diabetes, smoking).Read moreRead less
Evaluating Perceptual Benefits Of Bilateral Cochlear Implants For Young Children And Infants
Funder
National Health and Medical Research Council
Funding Amount
$452,843.00
Summary
The cochlear implant (bionic ear) has revolutionised communication for children with profound hearing loss. Nevertheless, children with the standard single implant still face huge challenges in educational and social settings. Difficulties include understanding speech that is soft, or speech in noisy environments, such as the classroom. Also, with one implant, children cannot locate the source of sound, such as the speaker in a group conversation, team-mates during sport, or an oncoming car. Res ....The cochlear implant (bionic ear) has revolutionised communication for children with profound hearing loss. Nevertheless, children with the standard single implant still face huge challenges in educational and social settings. Difficulties include understanding speech that is soft, or speech in noisy environments, such as the classroom. Also, with one implant, children cannot locate the source of sound, such as the speaker in a group conversation, team-mates during sport, or an oncoming car. Research with other normal hearing and hearing impaired groups suggests that two (bilateral) implants may possibly improve performance in these conditions. Although hundreds of children worldwide have received bilateral implants, very limited evidence is available to indicate whether two implants are significantly better than one, especially for young children. The main aim of the research is to evaluate the improvement in listening performance when young children and infants use two implants as compared with one. An additional aim is to gain clinical knowledge of bilateral implant use in order to develop selection criteria and management protocols for young bilateral candidates in the future. Results of this research will determine if bilateral implants should become a standard option for young children at the RVEEH-University of Melbourne Implant Clinic. The results will be published and presented internationally to influence clinical practice worldwide. All children using a cochlear implant, or in need of one in the future, will benefit as the study outcomes will indicate the best choice of hearing devices for individual children, and help to determine best-practice management if bilateral implants become an option for all children.Read moreRead less
Molecular Mechanisms And Therapeutic Effects Of Novel Parthenolide Analogs On Osteolysis
Funder
National Health and Medical Research Council
Funding Amount
$562,815.00
Summary
Rheumatoid arthritis and osteoporosis are common bone diseases with features of bone loss. Drugs that inhibit bone loss are needed for the prevention and treatment of bone diseases. The proposed research explores the potential use of novel herbal inhibitors for the suppression of bone resorbing cells, and their potential as treatments for bone loss.
BONE SIZE AND BONE TURNOVER: RELATIONSHIP TO FRACTURE RISK OVER TEN YEARS
Funder
National Health and Medical Research Council
Funding Amount
$428,225.00
Summary
The occurrence of fracture in the ageing population is a major public health problem because these fractures are responsible for considerable morbidity and mortality. Of women reaching 90 years of age, one third will fracture their hip and overall, one in every six women will sustain an osteoporotic fracture in her lifetime. The direct cost to the community is unknown but estimated, conservatively, at 175 million dollars annually. Most of this is likely to be the result of hip fractures which oc ....The occurrence of fracture in the ageing population is a major public health problem because these fractures are responsible for considerable morbidity and mortality. Of women reaching 90 years of age, one third will fracture their hip and overall, one in every six women will sustain an osteoporotic fracture in her lifetime. The direct cost to the community is unknown but estimated, conservatively, at 175 million dollars annually. Most of this is likely to be the result of hip fractures which occupy an estimated 400,000 bed-days annually. This bed occupancy is fourth next to mental illness, cardiac disease and cancer. The Geelong Osteoporosis Study is a large population-based epidemiological study currently under way to evaluate the major risk factors for fracture in women . This present study which will be an extension of the study to date, will provide in total, 8-10 years of data concerning the processes that result in increased bone fragility and fracture.Read moreRead less