Stimulus Induced Synaptic Plasticity In The Amygdala
Funder
National Health and Medical Research Council
Funding Amount
$428,777.00
Summary
Acute pain provides important warnings about dangers in our environment. However some clinical conditions produce chronic-persistent pain that outlasts the original injury and its useful role. This persistent pain is a debilitating condition that affects 20% of the Australian population and is characterized by painful sensory experience and a negative emotional state. The clinical management of persistent pain remains problematic due to the intolerable side effects associated with the escalating ....Acute pain provides important warnings about dangers in our environment. However some clinical conditions produce chronic-persistent pain that outlasts the original injury and its useful role. This persistent pain is a debilitating condition that affects 20% of the Australian population and is characterized by painful sensory experience and a negative emotional state. The clinical management of persistent pain remains problematic due to the intolerable side effects associated with the escalating doses required for adequate pain relief and the limited efficacy of current drug therapies in some clinically important pains states. The persistence of pain after the original injury has resolved suggest the development of adaptations that result in the ongoing pain. The changes in neurobiology underlying persistent pain are poorly defined. A better understanding of this neurobiology will result in better therapeutic approaches to persistent pain. The amygdala is a brain region that is important for pain processing, endogenous analgesia and emotion. A neuronal pathway that delivers information about pain to the amygdala has recently been shown to be critical for the development of persistent pain. Little is known about whether this critical neuronal pathway is modified by pain. This project will determine using electrical and chemical techniques how a brief or persistent painful stimulus changes the delivery of painful information to the neurons in the amygdala. The changes produced by a brief painful stimulus likely represent the initial changes in the development of a persistent pain state. This information may allow us to more fully understand the transition from acute to persistent pain and the changes defined may be sensitive to pharmacological modulation. Preventing or inhibiting these pain induced changes may provide better treatment for persistent pain or ideally prevent people undergoing the transition from acute to persistent pain.Read moreRead less
Investigating Cortical Plasticity And Connectivity In People With Chronic Low Back Pain And Controls Using Combined TMS_EEG
Funder
National Health and Medical Research Council
Funding Amount
$318,768.00
Summary
Little is known about the factors that predispose the development of chronic low back pain or what changes underpin effective treatment. Brain changes, thought to reflect adaptive processes are associated with chronic pain, but the extent of their contribution to CLBP is unknown. By measuring the adaptability of brain changes in people with CLBP I will determine if they differ from healthy controls in a way that predisposes them to develop chronic pain and is related to treatment response.
The implications of resistance training for the control of movement. Resistance training (or weight lifting) is an essential element of comprehensive rehabilitation programs in a wide range of clinical settings. However, because we know little about how the organization of the nervous system is affected by training with high loads, the consequences of resistance training for our ability to control functional movements are unclear. The ultimate goal of this research is to generate basic knowledge ....The implications of resistance training for the control of movement. Resistance training (or weight lifting) is an essential element of comprehensive rehabilitation programs in a wide range of clinical settings. However, because we know little about how the organization of the nervous system is affected by training with high loads, the consequences of resistance training for our ability to control functional movements are unclear. The ultimate goal of this research is to generate basic knowledge about the impact of resistance training on nervous system function. The research will lead to the design of injury prevention and rehabilitation programs that are maximally effective, and provide a genuine benefit to the community.Read moreRead less
The fundamental problem with pain is that it cannot be seen. We can see injury, but pain and injury are quite often not related. Brain imaging has demonstrated consistent patterns of activity when we feel pain, and long-term changes that happen in chronic, i.e. persistent, painful disorders. This project will use the best technology available to investigate the basics of how our brains perceive pain, and to shed light on some of the brain mechanisms that underpin chronic pain.
Excitatory Interneurons: A Sensory Amplifier For Pathological Pain
Funder
National Health and Medical Research Council
Funding Amount
$649,848.00
Summary
Changes to the nervous system during pathological pain remain poorly understood. This poses a barrier to new and more effective pain therapies. We have recently shown that a population of excitatory nerve cells, which express a protein called calretinin, form an amplifier network within the spinal cord that enhances pain signalling. This application will determine how calretinin-positive nerve cells contribute to pathological pain and can subsequently be targeted to provide pain relief.
Pain has a detrimental impact on ones quality of life and a significant financial impact on the community. It has recently been revealed that chronic pain is associated with altered brain anatomy and function. Using human brain imaging, we aim to determine the underlying reason for these changes by following individuals during the development of pain. Defining the mechanism underlying pain will aid in the development of better treatment regimens.
Chronic pain is a debilitating syndrome caused by damage to tissue and the nervous system, arising from trauma and disease. It is poorly served by current drugs. To identify novel more effective therapies we propose to examine the mechanisms underlying this syndrome. We have identified a novel protein which is involved in synaptic plasticity. We will examine its role the development of chronic pain at the cellular level and how it might be exploited for the treatment of chronic pain.
Fibromyalgia: Investigating The Prefrontal Cortex And Its Role In Novel Treatment Approaches
Funder
National Health and Medical Research Council
Funding Amount
$338,110.00
Summary
Fibromyalgia, a chronic pain condition, is experienced by 1-3% of Australians. Despite this high number, the cause of fibromyalgia is still unknown with no effective treatment options. In the proposed investigations I will use state of the art neuroscientific paradigms to explore the brain basis of fibromyalgia and utilise novel brain stimulation protocols to provide long-lasting pain relief.
Pain has a detrimental impact on ones quality of life and a significant financial impact on the community. Although some of the pathways that code pain in the brain have been defined, it was recently proposed that there also exists a pain-specific pathway in humans. Using human brain imaging, we aim to determine if such a pathway exists and if it is altered in subjects with chronic pain. The existence of such a pathway would significantly aid in the development of better treatment regimes.