Intervention Strategies For The Prevention Of Early Childhood Caries
Funder
National Health and Medical Research Council
Funding Amount
$125,000.00
Summary
Rampant dental decay in young children remains an important challenge for preventive dentistry. Although it is a preventable disease, the prevalence is high in many disadvantaged communities. The study will examine a few intervention programs to determine their effectiveness in preventing early childhood decay. These include brushing the teeth with a safe, dental antibacterial gel compared to traditional oral hygiene methods. Brushing with antibacterial gels at crucial times during the establish ....Rampant dental decay in young children remains an important challenge for preventive dentistry. Although it is a preventable disease, the prevalence is high in many disadvantaged communities. The study will examine a few intervention programs to determine their effectiveness in preventing early childhood decay. These include brushing the teeth with a safe, dental antibacterial gel compared to traditional oral hygiene methods. Brushing with antibacterial gels at crucial times during the establishment of the oral flora is likely to prevent decay-causing bacteria from colonising a child’s mouth, so that the risk of dental decay is reduced, not only during childhood, but possibly extending to adulthood as well.Read moreRead less
Transforming Growth Factor Beta Signalling In Malignant Mesothelioma Growth And Collagen Production
Funder
National Health and Medical Research Council
Funding Amount
$509,917.00
Summary
Many cancers contain abundant connective tissue molecules called extracellular matrix (ECM) and data show that interaction of ECM with cells are important in the growth of cancers (1). Changes in expression of ECM and their receptors (integrins) have been associated with malignant changes in cells, enhanced tumour growth and resistance to chemotherapy (2,3). We have recently shown that inhibition of collagen, the most abundant ECM molecule produced by malignant mesothelioma (MM) cells, reduced M ....Many cancers contain abundant connective tissue molecules called extracellular matrix (ECM) and data show that interaction of ECM with cells are important in the growth of cancers (1). Changes in expression of ECM and their receptors (integrins) have been associated with malignant changes in cells, enhanced tumour growth and resistance to chemotherapy (2,3). We have recently shown that inhibition of collagen, the most abundant ECM molecule produced by malignant mesothelioma (MM) cells, reduced MM growth. How cancer cells regulate ECM production and control their growth is unclear but strong evidence suggests the growth factor transforming growth factor-beta (TGFB) plays an important role. We and others showed that MM cells secrete all forms (1-3) of TGFB, and TGFB1,2-like activity has been reported in pleural effusions from MM (4,5). All TGFB forms stimulate MM cells to grow and make ECM (6,7). We showed that high levels of collagen produced by MM are enhanced by TGFB. Small molecules called antisense oligonucleotides (AO) which blocked production of TGFB2 by cells, reduced MM cell growth in soft agar, a characteristic of cancer, and partially blocked MM growth in animal models (4,6). This was supported by studies using soluble TGFB type II receptors, which blocks TGFB1,3 (8), and our studies using TGFB2 specific antibodies, as both studies reduced tumour growth. These findings support a role for TGFB in MM growth. However, all TGFB forms can promote cell grow and collagen synthesis and therefore ways to block all TGFB forms are required to ensure maximal effect. This study will examine the effect of blocking common downstream signalling pathways of all three TGFB isoforms on MM collagen production and tumour growth. These pathways are activated when TGFB binds to its receptors sending messages to the nucleus of the cell to make collagen or grow. By identifying which TGFB signalling pathway is important, we may be able to design novel therapeutic approaches to help treat patients with this disease.Read moreRead less
Improving Identification And Treatment Of Early-onset Behaviour Disorders In Children
Funder
National Health and Medical Research Council
Funding Amount
$498,869.00
Summary
Most mental health problems begin in childhood and adolescence. Of these, oppositional-defiant and conduct problems in childhood are the most common precursor of all types of adult mental health problems. These children are the most common referral to child mental health clinics but little is known about which of these children will go in which direction i.e., good health, chronic antisocial behaviour, depression and anxiety, substance abuse, the psychoses. Progress in more accurately defining s ....Most mental health problems begin in childhood and adolescence. Of these, oppositional-defiant and conduct problems in childhood are the most common precursor of all types of adult mental health problems. These children are the most common referral to child mental health clinics but little is known about which of these children will go in which direction i.e., good health, chronic antisocial behaviour, depression and anxiety, substance abuse, the psychoses. Progress in more accurately defining subgroups of these children would have huge implications for early intervention for mental health problems in our community. This project proposes the first large scale analysis of genetic distributions through to behavioural and treatment factors that characterise and differentiate a large representative sample of children with conduct problems. The project will test a model of child psychopathology that links genotype, via environmental risk and emotion processing problems, to an improved diagnostic-phenotypic model for treatment of the major childhood disorder. Clinical research activities will be structured into three intersecting arms: first, identifying the genetic and behavioural subtypes of early-onset conduct problems; second, innovative treatments for these children, and third, the dissemination of findings to these children and their families via the health care system. The research will build new collaborations between established and internationally recognised clinical research teams in childhood mental health, biological psychiatry, genetics and the Child and Adolescent Mental Health Statewide Network (CAMHSNET). CAMHSNET have specific responsibilities to NSW Health for expert advice and input on the development of child mental health services directions, dissemination, training, and effectiveness research.Read moreRead less