Contribution Of The Central Nervous System To Peripheral Neural Control In Obesity And Diabetes.
Funder
National Health and Medical Research Council
Funding Amount
$454,691.00
Summary
Obesity and diabetes are becoming major worldwide public health problems. A characteristic of human obese diabetes is a marked increase in sympathetic nerve activity to the kidneys and to the muscle. The cause of this overactivity is unknown, but undoubtedly involves the central nervous system. Within the brain are a select group of regions that are able to directly influence the activation of the sympathetic nervous system. We suspect these areas to play a critical role in the overactivity of t ....Obesity and diabetes are becoming major worldwide public health problems. A characteristic of human obese diabetes is a marked increase in sympathetic nerve activity to the kidneys and to the muscle. The cause of this overactivity is unknown, but undoubtedly involves the central nervous system. Within the brain are a select group of regions that are able to directly influence the activation of the sympathetic nervous system. We suspect these areas to play a critical role in the overactivity of the sympathetic nerve activity in obese diabetics. Indeed, we believe that there are specific chemical messengers in these select brain areas that are normally finely balanced. In obesity - diabetes, this balance is disturbed. Finally, we hypothesise that exercise, which is known to have beneficial effects for obesity - diabetes, restores the balance of the neurochemicals and this contributes to the positive outcomes of exercise.Read moreRead less
Cerebral Circulation In Sleep - Physiology & Pathophysiology
Funder
National Health and Medical Research Council
Funding Amount
$779,650.00
Summary
Prolonged, repetitive episodes of obstructed breathing during sleep (known as obstructive sleep apnoea syndrome or OSA) is a common medical problem that afflicts both adults and children. As many as 200,000 Australian adults and 100,000 children are affected. OSA has major medical consequences, amongst the most serious being cardiovascular disease and stroke. This experimental study investigates the blood flow to the brain and heart in normal sleep, and in sleep disrupted by OSA, as many of the ....Prolonged, repetitive episodes of obstructed breathing during sleep (known as obstructive sleep apnoea syndrome or OSA) is a common medical problem that afflicts both adults and children. As many as 200,000 Australian adults and 100,000 children are affected. OSA has major medical consequences, amongst the most serious being cardiovascular disease and stroke. This experimental study investigates the blood flow to the brain and heart in normal sleep, and in sleep disrupted by OSA, as many of the problems associated with OSA may have their origin in disturbance of blood flow to the brain and heart.Read moreRead less
Novel Approaches To Assessing Cerebral Circulation And Oxygenation In Preterm Human Infants.
Funder
National Health and Medical Research Council
Funding Amount
$489,145.00
Summary
In the first few days after birth, some premature babies develop low blood pressure. It is thought that this meant that the amount of blood and oxygen going to the brain would also fall. If blood pressure became very low, this could injure the brain. Drugs are used to prevent low blood pressure, but their effect on blood flow and oxygen in the brain is uncertain. This study aims to develop simple cotside monitoring procedures that allow neonatologists to monitor oxygen supply and blood flow in t ....In the first few days after birth, some premature babies develop low blood pressure. It is thought that this meant that the amount of blood and oxygen going to the brain would also fall. If blood pressure became very low, this could injure the brain. Drugs are used to prevent low blood pressure, but their effect on blood flow and oxygen in the brain is uncertain. This study aims to develop simple cotside monitoring procedures that allow neonatologists to monitor oxygen supply and blood flow in the brain in tiny babies who weigh less than 1000gm, and what happens within the brain when drugs are given to raise blood pressure. We will employ a new instrument that generates low intensity near infrared light which passes safely into the brain and is absorbed according to the amount of oxygen present in very small blood vessels. As the methodology is new, we intend to first validate the measurement in immature lambs. The instrument will then be applied in studies of babies undergoing intensive care and at risk for low pressure and brain injury, as many as 5000 babies each year in Australia.Read moreRead less
Cerebral Circulation In Sleep: Impact Of Endothelial Dysfunction
Funder
National Health and Medical Research Council
Funding Amount
$313,026.00
Summary
Prolonged, repetitive episodes of obstructed breathing during sleep (known as obstructive sleep apnoea syndrome or OSA) is a common medical problem that afflicts both children and adults. As many as 200,000 Australian adults and 300,000 children are affected. OSA has major medical consequences, amongst the most serious being cognitive deficits in children and vascular disease and stroke in adults. This experimental study investigates blood flow to the brain in normal sleep, and in sleep disrupte ....Prolonged, repetitive episodes of obstructed breathing during sleep (known as obstructive sleep apnoea syndrome or OSA) is a common medical problem that afflicts both children and adults. As many as 200,000 Australian adults and 300,000 children are affected. OSA has major medical consequences, amongst the most serious being cognitive deficits in children and vascular disease and stroke in adults. This experimental study investigates blood flow to the brain in normal sleep, and in sleep disrupted OSA, as many of the problems associated with OSA may have their origin in disturbance of blood flow to the brain.Read moreRead less
Fetal And Neonatal Therapy To Improve Perinatal Outcome And Long-term Neurodevelopment
Funder
National Health and Medical Research Council
Funding Amount
$214,032.00
Summary
I am a consultant neonatologist with a half-time research appointment. Preventing perinatal morbidity and mortality is one of the greatest challenges in medicine today. My vision is to lead research into new fetal and neonatal therapies, foster collaborations with clinicians and scientists, and improve clinical practice. The scope of my research includes “brain-oriented” program of neonatal intensive care, neuroprotective strategies, and devising new fetal together with the obstetricians.