TRANSCUTANEOUS ELECTRICAL STIMULATION TO TREAT CONSTIPATION DUE TO ANORECTAL RETENTION IN CHILDREN
Funder
National Health and Medical Research Council
Funding Amount
$635,320.00
Summary
If you don't poop, you die! Over 20% of older people have constipation. It starts in childhood in 1/100 people and lasts through life. At the Royal Children’s Hospital, Melbourne, we have been developing a physiotherapy method using electrical stimulation across the skin to treat long-term constipation. In this study we are comparing this treatment to current treatment in the most common type of chronic constipation in children.
How Intestinal Motility Activates Sensory Pathways
Funder
National Health and Medical Research Council
Funding Amount
$555,875.00
Summary
Pain and discomfort from the gut are common and unpleasant. We understand how gut sensory nerve cells work, at the cellular, molecular and genetic level. However, movement of the gut wall and contents are the major cause of activation of sensory neurons. We know little about which particular patterns of movement cause pain. This is crucial information for accurately diagnosing human gut disorders, for monitoring effectiveness of treatments and for identifying potential new drug targets.
ATP Release From Gastrointestinal Epithelium: A Potential Target For The Treatment Of Slow Transient Constipation
Funder
National Health and Medical Research Council
Funding Amount
$317,775.00
Summary
Slow transit constipation (STC) is a severe condition of the colon, almost exclusively affecting reproductive age women with no effective treatment. We recently found an association between STC and defects in connexin proteins in the large intestine. We aim to reveal the role of connexins and female hormones in the maintenance of normal intestinal function and their involvement in STC. The study will provide completely new perspectives in the understanding of the functional bowel disorders.
Dissecting The Molecular Basis Of Actin Filament Disassembly In The Malaria Parasite
Funder
National Health and Medical Research Council
Funding Amount
$576,716.00
Summary
Cell movement by the malaria parasites is fundamental to parasite infection and disease. However, whilst core components of the parasite motor driving movement are known, little is understood about their regulation, in particular actin – the dynamic force behind all parasite motility. Here by dissecting the role of actin-depolymerizing-factor-1, an essential parasite actin regulator, we hope to reveal one of the central processes that underlies motility and develop it into a potential drug targe ....Cell movement by the malaria parasites is fundamental to parasite infection and disease. However, whilst core components of the parasite motor driving movement are known, little is understood about their regulation, in particular actin – the dynamic force behind all parasite motility. Here by dissecting the role of actin-depolymerizing-factor-1, an essential parasite actin regulator, we hope to reveal one of the central processes that underlies motility and develop it into a potential drug target.Read moreRead less
Mechanical Factors In Normal Human Colonic Motility
Funder
National Health and Medical Research Council
Funding Amount
$650,023.00
Summary
Abnormal human colonic contractions cause significant medical, societal and financial burdens. Diagnosis and treatment of motility disorders requires an understanding of normal colonic contractility against which to measure dysfunction. Through state-of-the-art recording and analytical techniques, developed by the applicants, this project will provide the first clear description of normal human colonic motor patterns and how they are generated.
The Mechanisms Through Which Opiates Cause Gastrointestinal Dysfunction
Funder
National Health and Medical Research Council
Funding Amount
$410,594.00
Summary
Opiates are the mainstay analgesics for severe pain. However, their use in pain relief can be greatly limited due to gut-related side-effects. These include chronic constipation, which is mediated through actions on neurons in the intestine. In this proposal we will examine the role of key proteins, known as beta arrestins, in the generation of opiate-induced constipation. Knowledge derived from this study will facilitate the development of analgesics with fewer gastrointestinal side-effects.
Stimulant laxatives are widely used and usually very effective in the short term, but how they work is very poorly understood. Our recent work has shown that they selectively excite sensory pathways from the colon which then trigger defaecation. This points to an undiscovered mechanism that potently affects colonic sensation and motility. This is likely to be a target for new treatments for other colonic disorders such as Irritable bowel syndrome and faecal incontinence.
Neural Control Of Colorectal Function And Identification Of Sites Of Drug Action
Funder
National Health and Medical Research Council
Funding Amount
$375,489.00
Summary
Constipation is a considerable problem, especially in the elderly; it occurs in 20-25% of people over 65 and in about 50% of people in nursing homes. It is also a significant concern for children, with up to 30% being affected. There are no adequate treatments and the majority of people are dissatisfied with their management. We have discovered a class of compounds that stimulate defecation. In this project we will test the effectiveness of these compounds to relieve constipation.
Modulating Gastrointestinal Function For Control Of Diabetes
Funder
National Health and Medical Research Council
Funding Amount
$883,469.00
Summary
It is now recognized that gastrointestinal function, particularly the rate that meals empty from the stomach, and the secretion of hormones from the small intestine in response to nutrients, is fundamental to blood glucose control in people with diabetes. This project seeks to understand how these processes can best be modified by dietary or pharmaceutical means to improve blood glucose control and thereby prevent complications in type 2 diabetes
Use Of A Novel Technique To Identify The Sensory Nerve Endings That Respond To Painful Stimuli In The Upper Gastrointestinal Tract And Characterize Their Mechanisms Of Activation
Funder
National Health and Medical Research Council
Funding Amount
$353,243.00
Summary
Many people experience pain in their upper gastrointestinal tract. Unlike the skin, however, we have no idea where the sensory nerve endings that detect pain are located in this part of the body, and no clear understanding of how these nerve endings are activated to cause pain. This project will utilise a novel technique recently developed by the CIA to finally identify and record directly from the sensory nerve endings that detect painful stimuli in the upper gastrointestinal tract and characte ....Many people experience pain in their upper gastrointestinal tract. Unlike the skin, however, we have no idea where the sensory nerve endings that detect pain are located in this part of the body, and no clear understanding of how these nerve endings are activated to cause pain. This project will utilise a novel technique recently developed by the CIA to finally identify and record directly from the sensory nerve endings that detect painful stimuli in the upper gastrointestinal tract and characterise the mechanisms underlying their activation.Read moreRead less