Migration And Differentiation Of Enteric Neuron Precursors
Funder
National Health and Medical Research Council
Funding Amount
$385,116.00
Summary
There are many millions of nerve cells within the wall of the intestine, and they control many intestinal functions, including motility. During development, these nerve cells arise from cells which migrate away from the developing brain and first enter the stomach. The migratory cells are called neural crest cells. After entering the stomach, neural crest cells migrate within the wall of the gastrointestinal tract, until they reach the far (anal) end. In embryonic mice, this colonisation of the ....There are many millions of nerve cells within the wall of the intestine, and they control many intestinal functions, including motility. During development, these nerve cells arise from cells which migrate away from the developing brain and first enter the stomach. The migratory cells are called neural crest cells. After entering the stomach, neural crest cells migrate within the wall of the gastrointestinal tract, until they reach the far (anal) end. In embryonic mice, this colonisation of the entire small and large intestines by neural crest cells takes over 4 days, and in humans the process probably takes at least one week. It is essential that the neural crest cells colonise the entire gastrointestinal tract, since regions of intestine lacking neural crest cells (and hence nerve cells) cannot function and intestinal contents build up in front of the region lacking nerve cells. This condition is found in some babies (Hirschsprung's disease), and it can only be treated by surgically removing the region lacking nerve cells. It is therefore essential that migratory neural crest cells colonise the entire gastrointestinal tract. Currently, little is known about the mechanisms controlling the migration of neural crest cells, and whether a) particular molecules within the gut wall are important for migration, and-or b) the migratory behaviour of the neural crest cells is regulated mostly by the neural crest cells themselves. In this study we will take time-lapse images of neural crest cells migrating through the gut of embryonic mice to identify the factors that are important for the migration. After the neural crest cells have colonised the entire intestine, they develop into different types of nerve cells. We will also examine some of the factors affecting the development of different types of nerve cells.Read moreRead less
Many infants and children suffer from bowel motility disorders, for example, chronic constipation affects up to 1 in 10 children. However, the cause of many of these paediatric motility disorders remains unknown. In this project, we will examine the development of wiring of the nervous system that controls bowel motility. This is the first study to investigate the development of cell-cell communication during early stages of nervous system development.
Preconception Predictors Of Health, Behaviour And Emotional Adjustment At Seven Years
Funder
National Health and Medical Research Council
Funding Amount
$1,170,830.00
Summary
An understanding of the importance of a healthy start to life has underpinned major health policies including Australia’s National Agenda for Early Childhood. The capacity of parents to provide that healthy start has received little study. The present project investigates the extent to which parental lifestyle, social and emotional adjustment prior to conception predictor emotional problems, disruptive behaviour and health in their children at seven years.
An inability to resist a temptation or repeated failures of self-regulation can lead to 'impulsive' and 'compulsive' behaviours that relate to a host of personal and social problems (eg., excessive eating, gambling, and substance use). Despite this, very little research has studied the neural and psychological underpinnings of these behaviours. My research will take advantage of recent innovations and approaches to fill this void and have implications for diagnosis and treatment.
Impact Of A Sleep Intervention In Children With ADHD: A Randomised Controlled Trial
Funder
National Health and Medical Research Council
Funding Amount
$384,230.00
Summary
Attention deficit hyperactivity disorder (ADHD) affects up to 7.5% of Australian children. Between 50 and 70% of parents also report sleep problems (eg night waking, insomnia) in their child with ADHD. Such sleep problems are associated with poorer child behaviour, concentration, and school attendance as well as poorer parent mental health and work attendance. This randomised controlled trial will determine whether treating sleep problems in children with ADHD can improve these outcomes.
Rates Of Psychosis Onset In A High Risk Population
Funder
National Health and Medical Research Council
Funding Amount
$310,359.00
Summary
Older studies of people at risk of schizophrenia found that about 35% of them developed psychosis within 1 year. However the risk has decreased lately to as low as 10%. They may still become psychotic but take longer to do so, or they may not develop psychosis at all. We need to study this so that those not “at risk” are not needlessly treated. We will follow up “at risk” people and determine their 6 year outcome. We will do scans to see if there are any brain changes associated with psychosis.
Building The Evidence Base For Prevention And Recovery Care Services
Funder
National Health and Medical Research Council
Funding Amount
$365,903.00
Summary
This project involves seven inter-related studies designed to evaluate the appropriateness, effectiveness and efficiency of Victoria's Prevention and Recovery Care Services (PARCS), which are residential services for people with severe mental disorders. The project represents a partnership between universities, PARCS providers, clinical services and the Victorian Government, and will actively engage service users and their carers and other experts
Motor problems, ranging from clumsiness to cerebral palsy, are one of the most common adverse outcomes in children born early. This study will investigate the motor development of children born <30 weeks’ gestation compared with peers born at term from birth to 5 years. We will determine whether early clinical evaluations or neuroimaging in the newborn period can predict later motor impairment at 5 years to be able to identify those who will benefit most from early intervention.
A Culturally Appropriate Approach To Improve Mental Health Outcomes In Sri Lanka And China: Mental Health First Aid
Funder
National Health and Medical Research Council
Funding Amount
$1,161,042.00
Summary
Mental Health First Aid (MHFA) training has an established track record in high-income countries of improving knowledge, attitudes and behaviours in relation to people with mental health problems. However, appropriateness of the course content and implementation models in middle-income countries is unknown. This project provides a unique opportunity to develop and pilot culturally appropriate MHFA training to improve population mental health in middle-income countries.
Investigating A Theoretical Model Of Cognitive Control In Children With Attention Deficit Hyperactivity Disorder (ADHD): Informing Our Approach To Cognitive Training.
Funder
National Health and Medical Research Council
Funding Amount
$318,768.00
Summary
ADHD is the most common childhood developmental disorder, characterised by inattentive and/or hyperactive behaviours. Cognitive control has been highlighted as a potential mediator of ADHD symptoms. This program will i) delineate the relationship between cognitive control and ADHD symptoms, ii) develop a cognitive training intervention to target the underlying mechanisms identified as mediators of ADHD symptoms and iii) evaluate the program in a gold-standard clinical trial.