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Identification And Characterization Of Novel Bioactive Peptides From Australian Conesnails Targeting Pain Pathways
Funder
National Health and Medical Research Council
Funding Amount
$320,803.00
Summary
In recent years, significant advances have been made in the identification of new targets in the central or peripheral nervous systems which may be used to develop new pain killers. However, molecules specifically targeting these receptors and channels are lacking to date. This project will use novel cell-based approaches to find new molecules from conesnails which specifically target receptors involved in pain. These will be useful to increase our understanding of the mechanisms of pain.
Pain is one of the most frequent and costly health problems faced by Australia. Currently available painkillers often do not work, or have intolerable side effects. We thus need better approaches to treat pain. This project will define the role of the novel pain target Nav1.6 in clinically relevant pain states, including burns pain and chemotherapy-induced pain, with the aim to develop novel treatment approaches and painkillers for these difficult-to-treat conditions.
Strategies To Restore Bladder Control After Peripheral Nerve Injury
Funder
National Health and Medical Research Council
Funding Amount
$519,967.00
Summary
A major complication of pelvic surgery is loss of bladder control, mainly due to nerve injury at the time of removing cancerous tissue. This has a big effect on quality of life. Very little research has been conducted on injured bladder nerves. In this project we will investigate what happens to bladder nerves after injury and how we can make them regrow. We will also investigate if undamaged bladder nerves can be made to compensate for the lost function.
Spinal Cord Injury Pain: Understanding Mechanisms To Develop Treatments
Funder
National Health and Medical Research Council
Funding Amount
$597,675.00
Summary
Spinal cord injury has devastating effects on health and quality of life. Many of the major consequences of injury, such as chronic pain and loss of voluntary voiding, are "invisible" – i.e., they are not as visible as limitations of mobility. Our study aims to define the neurobiological changes that cause development of persistent pain after spinal cord injury and use pharmacological tools to attenuate the development of pain.
The Role Of Sodium Channels In Pain And Cold Allodynia
Funder
National Health and Medical Research Council
Funding Amount
$349,306.00
Summary
Many types of chronic pain remain poorly treated and severely impact the quality of life of millions of Australians. Cold allodynia in particular, which occurs in several painful human conditions and leads to severe pain from simply touching a cool surface or item, is poorly understood and thus difficult to treat. The aim of this project is to determine the pharmacological mechanism of cold allodynia to develop novel treatment approaches.
Development Of Peripheral Sensory Pathways In Humans
Funder
National Health and Medical Research Council
Funding Amount
$477,504.00
Summary
To receive the appropriate information about the state of our muscles, joints, organs, and skin we need a properly 'connected' sensory system. Recent evidence suggests traumatic events during early development can alter sensory connections within the spinal cord. This can lead to debilitating movement disorders, digestive diseases, and increased pain. In this study we will examine how peripheral sensory fibres connect with the appropriate nerve cells in the human spinal cord during development.
Mechanosensitive Afferent Nerves And Gastrointestinal Motility
Funder
National Health and Medical Research Council
Funding Amount
$384,693.00
Summary
This project aims to identify the different types of sensory nerves from the gut which cause sensations such as fullness, nausea or pain. These sensory nerves also activate important reflexes that coordinate different regions of the gut to ensure that food is properly digested and propelled. Many studies have examined these sensory nerves and how they can be activated by stretching the gut wall, but very basic questions remain to be answered. We do not know how many different types of sensory ne ....This project aims to identify the different types of sensory nerves from the gut which cause sensations such as fullness, nausea or pain. These sensory nerves also activate important reflexes that coordinate different regions of the gut to ensure that food is properly digested and propelled. Many studies have examined these sensory nerves and how they can be activated by stretching the gut wall, but very basic questions remain to be answered. We do not know how many different types of sensory nerves there are and whether they all respond to stretch in the same way. We cannot identify their specialised endings in the wall of the gut. While these sensory nerves definitely respond to stretch, they are also known to respond to contractions of the gut wall. Despite this, we do not understand how the normal movements of the gut wall activate them, nor why some movements can lead to pain. Most of the experiments will be carried out on small pieces of tissue taken from humanely killed guinea pigs and studied, under highly controlled conditions, in organ baths. The remainder of the study will be on specimens of human gut tissue obtained at surgery. This project will use new techniques to record sensory nerves during both stretch and contraction of the gut wall to understand what activates them. In addition, their endings will be labelled with dye to reveal their different shapes. Using computerised imaging techniques we will identify whether they respond to particular patterns of movement in the gut wall. Lastly we will record from these sensory neurones in live specimens of human colon to see whether the same types of sensory nerves are present in humans as in the small animals. This study will provide the first comprehensive account of sensory nerves to the gut wall that respond to distension, including those that activate pain pathways. This is a pre-requisite for designing new drugs that will target these nerve cells with minimal side effects.Read moreRead less
Interactions Between Herpes Simplex Viral And Neuronal Motor Proteins
Funder
National Health and Medical Research Council
Funding Amount
$222,962.00
Summary
Herpes simplex virus (HSV) lies dormant within the nerve cell bodies near the spinal cord in most people. Intermittently the virus reactivates and is transported down the nerve to the skin where it causes blisters-ulcers or is shed without causing symptoms. The aim of this grant is to determine how Herpes Simplex virus is transported within nerve cells at the molecular level. It builds on recent discoveries of a direct interaction between a Herpes simplex viral protein and the nerve cell motor p ....Herpes simplex virus (HSV) lies dormant within the nerve cell bodies near the spinal cord in most people. Intermittently the virus reactivates and is transported down the nerve to the skin where it causes blisters-ulcers or is shed without causing symptoms. The aim of this grant is to determine how Herpes Simplex virus is transported within nerve cells at the molecular level. It builds on recent discoveries of a direct interaction between a Herpes simplex viral protein and the nerve cell motor protein which transports essential components down nerves from the spinal cord to the skin. Ultimately we aim to develop inhibitors of this process which might be candidates for further development as antivirals for control of recurrent herpes simplex.Read moreRead less