Allostatic Mediators Of Socioeconomic Inequalities In Periodontitis Among Australian Adults
Funder
National Health and Medical Research Council
Funding Amount
$368,000.00
Summary
Periodontal (gum) disease is a significant cause of tooth loss among adults in Australia. Bacteria (germs) that stick to teeth in dental plaque are the primary cause of gum disease. However, the amount of damage caused to the gums depends heavily on the body's immune system which fights infection throughout the body. Like many other health conditions, gum disease occurs at a higher rate in people in a relatively low socioeconomic-position (SEP) compared to people from high SEP. Studies of other ....Periodontal (gum) disease is a significant cause of tooth loss among adults in Australia. Bacteria (germs) that stick to teeth in dental plaque are the primary cause of gum disease. However, the amount of damage caused to the gums depends heavily on the body's immune system which fights infection throughout the body. Like many other health conditions, gum disease occurs at a higher rate in people in a relatively low socioeconomic-position (SEP) compared to people from high SEP. Studies of other health conditions have shown that psychosocial stress (eg. job strain, financial stress) disproportionately affects people in low SEP groups. Stress, in turn, is known to alter the body's defense mechanisms, including the immune system, contributing to higher rates of conditions such as heart disease. Researchers have used the term allostatic load to describe this failure of the body's defense system under stress. Stress has also been suggested as a contributing factor in gum disease. This study will investigate whether this sequence of events producing allostatic load also plays a role in gum disease. We will study a random sample of 610 Australian adults from the full range of SEP backgrounds. We will ask them about their experience of daily stress, and measure their levels of gum disease and dental plaque. We will also collect samples of fluid from around their gums to measure quantities of two chemicals that indicate the activity of immune defense mechanisms in the gums. We will analyze these results to determine whether stress affects the body's responses to dental plaque, and whether that response accounts for differences in levels of gum disease between SEP groups. Results from this study will pinpoint the role of common bodily defense mechanisms in the development of gum disease. These results may help to identify sources of stress that, if controlled, could reduce rates of gum disease and other conditions affected by allostatic load.Read moreRead less
Young Adult Social Transitions - Course Of Mental And Behavioural Disorders:The Victorian Adolescent Health Cohort Study
Funder
National Health and Medical Research Council
Funding Amount
$560,750.00
Summary
The paths young people follow into adulthood have changed markedly in the past three decades. Traditionally the adoption of a role as marital partner, parent and fulltime employee in the late teens and early twenties was accompanied by a diminution or 'maturing out' of health risk behaviours and emotional problems arising in adolescence. The social transitions into adulthood are now both delayed and in many instances changed with higher rates of cohabitation, extended teriary educational partici ....The paths young people follow into adulthood have changed markedly in the past three decades. Traditionally the adoption of a role as marital partner, parent and fulltime employee in the late teens and early twenties was accompanied by a diminution or 'maturing out' of health risk behaviours and emotional problems arising in adolescence. The social transitions into adulthood are now both delayed and in many instances changed with higher rates of cohabitation, extended teriary educational participation and part-time employment. The effect of these social changes on health risk behaviours, behavioural and mental disorders is uncertain. This proposal will undertake a further follow-up in the late twenties of a group of just under 2000 young Victorians, already studied from the age of 14 years through to the age of 24 years. This study will assess the persistence of behavioural problems such as smoking and nicotine dependence, excessive alcohol consumption and dependence, cannabis dependence, illicit drug use, risk sexual behaviour, depression and anxiety disorders. The extent to which these may be associated with successful negotiation of transitions in education, employment, relationships, parenthood and establishing an independent home will be evaluated. Alternative explanations including the severity of dependence syndrome, personality, social background and genetic risk factors will also be explored.Read moreRead less