Improving Pain And Movement Outcomes In Symptomatic Knee Osteoarthritis
Funder
National Health and Medical Research Council
Funding Amount
$431,000.00
Summary
People fear getting painful knee osteoarthritis (OA) more than any other disease – it is seen as progressive and incurable. It often stops people from moving and staying healthy, resulting in an enormous burden on sufferers and the health care system. This program of research aims to understand what brain & nervous system processes might underlie these pain and movement problems and whether new brain-targeting treatment helps. This will allow us to better match treatment to what patients need.
Sympathetic Control Of Cutaneous Blood Flow And Blood Pressure In Human Spinal Cord Injury
Funder
National Health and Medical Research Council
Funding Amount
$242,002.00
Summary
While spinal cord injury can cause devastating changes in the nervous system paralysis and loss of sensation relatively little is known about changes to the sympathetic nervous system. The sympathetic nervous system is intimately involved in the ongoing control of blood pressure, blood flow and temperature control. Loss of sympathetic control can occur following spinal cord injury. Interruption of descending pathways can result in partial or complete loss of sympathetic outflow from the thoracol ....While spinal cord injury can cause devastating changes in the nervous system paralysis and loss of sensation relatively little is known about changes to the sympathetic nervous system. The sympathetic nervous system is intimately involved in the ongoing control of blood pressure, blood flow and temperature control. Loss of sympathetic control can occur following spinal cord injury. Interruption of descending pathways can result in partial or complete loss of sympathetic outflow from the thoracolumbar segments. Complete decentralization can result in autonomic dysreflexia (autonomic hyperreflexia), in which sensory stimuli originating below the lesion evoke a reflex increase in sympathetic drive to the blood vessels, causing them to constrict. Because of this, blood pressure may rise suddenly and remain at such high levels that stroke and (occassionally) cardiac arrest may occur. This phenomenon, autonomic dysreflexia, is considered a medical emergency. The typical subjective signs of autonomic dysreflexia include a throbbing headache, tingling in the head or nasal congestion; sweating and flushing above the lesion are clinical signs that prompt medical staff to measure blood pressure and to locate the source of sensory irritation (usually a distended bladder or impacted colon, sometimes a pressure sore or ingrown toenail). Commonly, however, subclinical episodes go undetected, and this phenomenon of silent dysreflexia is of increasing concern. This project will develop means of assessing the integrity and state of the sympathetic nervous system below a lesion in patients with spinal cord injury and characterize the firing properties of reflexly activated sympathetic neurones.Read moreRead less
Fall Prevention And Physical Activity Promotion For Older Adults: Cluster Trial Of Effectiveness And Cost-effectiveness
Funder
National Health and Medical Research Council
Funding Amount
$1,291,950.00
Summary
This cluster randomised controlled trial will establish the impact on physical activity and falls of an intervention program that targets both physical activity and falls using assessment, advice and health coaching. The trial will involve 60 established groups of older people, recruited from local chapters of community organisations including Probus, the Older Women’s Network, registered clubs and church groups (estimated average group size of 10; total n = 600).
The Get Healthy Coaching Service To Reduce The Burden Of Low Back Pain: Effectiveness, Cost Effectiveness, And Scalability
Funder
National Health and Medical Research Council
Funding Amount
$1,108,389.00
Summary
Many improve after discharge from treatment for low back pain (LBP), however some experience worsening symptoms and seek costly additional health care. Get Healthy Service® is a free phone-based health coaching service that supports people to remain physically active, however there is no co-ordinated referral pathway to the service. We will test the effectiveness, cost-effectiveness and scalability of a discharge support system linking chronic LBP patients to the Get Healthy Service®.
Inhibition Of Fear Memories By Extinction: Neural Substrates.
Funder
National Health and Medical Research Council
Funding Amount
$234,250.00
Summary
Anxiety disorders [e.g., Post Traumatic Stress Disorder (PTSD)] are the most prevalent type of psychopathology in the industrialised world. They are associated with characteristic behavioural (e.g., heightened startle) and autonomic (e.g., cardiovascular) reactions. These disorders are often characterised as an inability to regulate the emotion of fear. Significant progress has been made in understanding the neural and cellular processes involved in the establishment of fear memories, but relati ....Anxiety disorders [e.g., Post Traumatic Stress Disorder (PTSD)] are the most prevalent type of psychopathology in the industrialised world. They are associated with characteristic behavioural (e.g., heightened startle) and autonomic (e.g., cardiovascular) reactions. These disorders are often characterised as an inability to regulate the emotion of fear. Significant progress has been made in understanding the neural and cellular processes involved in the establishment of fear memories, but relatively little is known about the mechanisms by which fear memories can be inhibited or suppressed. Understanding this latter process is a key to the development of effective treatments for anxiety disorders such as PTSD where the patient suffers from persistent, intrusive, unwanted trauma memories. A common experimental procedure for reducing learned fear is to repeatedly expose the subject to a fear-eliciting stimulus but without any aversive outcome. This procedure leads to a progressive loss, or extinction, of the fear reactions elicited by the stimulus. Historically, the extinction of fear was thought to be due to an erasure of the fear memory. However, recent evidence shows that extinction inhibits, rather than erases, the fear memory. Because the fear memories remain intact, some structure(s) in the brain must inhibit activity in the fear pathway. This project uses extinction of conditioned fear reactions in rat subjects to determine the structure(s) in the brain that inhibit fear memories and their behavioural and cardiovascular expression. It brings together the expertise of four well-established researchers and uses a combination of behavioural, physiological, immunohistochemical, tract tracing, and lesion approaches to achieve this aim. The proposed experiments will reveal the structure(s) in the brain that control the inhibition of fear, as well as the site(s) of this inhibition in the fear pathwayRead moreRead less
Scalability Of The Transform-Us! Program To Promote Children's Physical Activity And Reduce Prolonged Sitting In Victorian Primary Schools
Funder
National Health and Medical Research Council
Funding Amount
$549,823.00
Summary
Transform-Us! is an innovative primary school program that has been found to substantially increase children’s physical activity levels, reduce sitting time and benefit health. With simple changes to the school and classroom environments and teaching practices (eg, standing lessons) we will work with partners in the education and health systems to translate this program across Victorian primary schools to determine the real-world implementation and impact of this program over 5 years.
A Scalable Intervention For Increasing Vigorous Physical Activity Among Older Adolescents: The ‘ Burn To Learn ’ Cluster RCT
Funder
National Health and Medical Research Council
Funding Amount
$636,912.00
Summary
Physical inactivity has been described as a global pandemic and only 15% of Australian adolescents are sufficiently active. The pressure to perform in major school assessments drives many older adolescents to sacrifice physical activity to maximise academic performance. Our team has designed a time-efficient solution to increase physical activity in senior high school students using high intensity interval training which will be evaluated using a cluster randomised controlled trial.
Mapping the connectome that controls blood pressure. The connections that an individual brain cell receives from other cells ultimately determines its behaviour. Using a revolutionary new technique, the project will create a map of the brain cells that control blood pressure.
Improving Weight Loss By Intermittent Use Of Very Low Energy Diet: The TANGO Diet Trial (Temporary Phases Of Accelerated Weight Loss For Noticeably Greater Outcomes)
Funder
National Health and Medical Research Council
Funding Amount
$660,736.00
Summary
Very low energy diet (VLED) is being increasingly used for the treatment of obesity, but the resultant weight loss is usually transient, partly because it induces powerful adaptive responses that inhibit weight loss and promote regain. We have shown that 'taking a break from dieting' for 2 weeks reduces these adaptive responses. In this project we will thus test whether weight loss outcomes with VLED can be improved via intermittent use, where periods on the VLED are alternated with 'breaks'.
Rhombomeric Topography of Structures in the Adult Mouse: Evidence from Avian Homologies and Transgenic Mice. The brainstem of birds has been shown to be formed by a line of segments, like carriages of a train. The same arrangement exists in the embryos of mammals, but is hidden in the adult mammalian brain. We will transfer our detailed knowledge of bird brains to make a maps of the brainstem segments in adult mice. We will then test this map with special gene markers which will reveal the occul ....Rhombomeric Topography of Structures in the Adult Mouse: Evidence from Avian Homologies and Transgenic Mice. The brainstem of birds has been shown to be formed by a line of segments, like carriages of a train. The same arrangement exists in the embryos of mammals, but is hidden in the adult mammalian brain. We will transfer our detailed knowledge of bird brains to make a maps of the brainstem segments in adult mice. We will then test this map with special gene markers which will reveal the occult segmental pattern in adult mice. This work will give us a new way of understanding the organisation of brainstem centres that control breathing, cardiovascular functions and emotional states.Read moreRead less