Linking Of Physiological Models Of Iv Anaesthetic Disposition With Models Of The Cardio- And Cerebro-vascular Systems
Funder
National Health and Medical Research Council
Funding Amount
$227,036.00
Summary
On average, nearly 1 in 10 Australians are anaesthetised each year. Most cases include an injection of either thiopentone or propofol directly into a vein. These drugs quickly produce the desired loss of consciousness, but can also produce significant undesirable effects on the circulatory system. To date, anaesthetists have relied on their accumulated experience to choose doses of these drugs that achieve an appropriate balance between their desirable and undesirable effects. However, the scien ....On average, nearly 1 in 10 Australians are anaesthetised each year. Most cases include an injection of either thiopentone or propofol directly into a vein. These drugs quickly produce the desired loss of consciousness, but can also produce significant undesirable effects on the circulatory system. To date, anaesthetists have relied on their accumulated experience to choose doses of these drugs that achieve an appropriate balance between their desirable and undesirable effects. However, the scientific basis of this process was poorly understood. Consequently, we conducted experiments in sheep in which we showed that the level of unconsciousness produced by these drugs depended on their concentration in the brain. Each sheep was unharmed and could be studied repeatedly. We established the important factors that influenced this brain concentration, and developed a unique computer model of the processes governing the desirable effects of thiopentone and propofol. However, understanding of what influences the undesirable effects of these drugs is less well developed. In this project, we propose a series of experiments in which we inject the thiopentone and propofol in special sites within the sheep so that we achieve low concentrations in some parts of the body, but high concentrations in others, while also measuring their undesirable effects. This will show which sites in the body high concentrations of drug should be avoided to minimise these undesirable effects. Another series of studies will be used to extend our computer model so that it can predict these undesirable effects. This extended model will allow anaesthetists to visualise and understand the fundamental factors influencing both the desirable and undesirable effects of thiopentone and propofol. This in turn will lead to dose strategies that help the anaesthetist maximise the desirable effects, while minimising the undesirable, in individual patients.Read moreRead less
Life-saving chemo/radio-therapy commonly renders women and girls who survivor cancer infertile or sterile. We have discovered a new means of preserving the fertility of female mice exposed to chemo/radio therapy. In this project we will apply these advances to human ovarian tissue/eggs for the first time. We have access to these rare tissues for research purposes. This project will develop new approaches to fertility preservation for cancer survivors.
Dangerous Dreams: The Next Era In Paediatric Sleep Research
Funder
National Health and Medical Research Council
Funding Amount
$2,238,220.00
Summary
The amount of time and the quality of our sleep affects every aspect of our health and well-being. The amount of time we sleep is maximal in infants and children because it is promotes normal brain development. Sleep problems affect nearly half of all children and adversely affect both learning and blood pressure. The proposed studies will identify and improve treatment of sleep problems to improve overall physical health and quality of life for these children and their families.
Maternal Ophthalmic Artery Doppler Waveform Analysis In The Assessment And Management Of Pre-eclampsia
Funder
National Health and Medical Research Council
Funding Amount
$94,758.00
Summary
Pre-eclampsia is the commonest serious medical problem in pregnancy. Mothers who have this condition are at risk of seizures, stroke and other neurological problems, which can cause death or long-term morbidity. Treatments for pre-eclampsia aim to prevent these problems. Through ultrasound imaging of a blood vessel at the back of the eye, this study will provide new insights into how these treatments change the brain's blood supply in mothers with pre-eclampsia.
Female Reproductive Health Preservation By Nicotinamide Adenine Dinucleotide (NAD+) And Sirtuin2 (SIRT2)
Funder
National Health and Medical Research Council
Funding Amount
$410,983.00
Summary
Cancer treatment can be severely toxic to women’s eggs. Increasing numbers of women who survive cancer therefore become infertile and prematurely deprived of hormonal support whilst still in their reproductive years. This project will use state-of-the-art techniques to interrogate newly uncovered pathways that can protect eggs from treatment-induced injury thereby greatly improving the quality of life for female cancer survivors.
Developing A Vaccine To Protect Against Hypervirulent Strains Of Group A Streptococcus
Funder
National Health and Medical Research Council
Funding Amount
$536,850.00
Summary
Epidemic invasive GAS disease is associated with the emergence of the globally disseminated M1T1 clone and is linked to the mutation in the CovR/S regulator. This mutation leads to over- expression of SpyCEP and inhibits recruitment of neutrophils to the site of infection. Inclusion of an immunogenic fragment of SpyCEP into our current vaccine would enhance its efficacy and lead to the development of a vaccine with a wider coverage and better protective efficacy against hypervirulent GAS strains
Banking On The Future: Establishing Evidence For Policy, Protocols, And Patient Care Relating To Storage Of Reproductive Material Before Treatment For Cancer
Funder
National Health and Medical Research Council
Funding Amount
$588,023.00
Summary
Cancer treatment can cause infertility. Patients may freeze sperm, eggs, embryos, or ovarian tissue before cancer treatment for later use in fertility treatment. There are no national guidelines specific to this procedure, no generally accepted policies for services, inadequate knowledge about its outcomes, and limited understanding of the needs and expectations of patients who undergo it. This research will address these knowledge gaps and thus contribute to the wellbeing of cancer patients and ....Cancer treatment can cause infertility. Patients may freeze sperm, eggs, embryos, or ovarian tissue before cancer treatment for later use in fertility treatment. There are no national guidelines specific to this procedure, no generally accepted policies for services, inadequate knowledge about its outcomes, and limited understanding of the needs and expectations of patients who undergo it. This research will address these knowledge gaps and thus contribute to the wellbeing of cancer patients and survivors.Read moreRead less
A Prospective Study Of Language Impairment And Recovery Following Surgery For Brain Tumours
Funder
National Health and Medical Research Council
Funding Amount
$861,342.00
Summary
This multi-site project will investigate the incidence and nature of post-operative language difficulties (aphasia) in patients following surgery for left hemisphere primary brain tumours. It will provide comprehensive data concerning risk factors for post-surgical aphasia in Australian patients, in addition to important information about the brain lesions responsible for its various clinical presentations. This information will be used to generate recommendations for clinical practice.
Facial palsy is a devastating condition which has a very significant psychological and cosmetic impact. A simple and effective treatment does not exist for facial palsy. Our research goal is use state-of-the-art technology to define the types and the severity of the underlying nerve injury so that effective treatments can be developed to treat this terrible disorder.