Birth Weight, Adult Weight And Podocyte Depletion.
Funder
National Health and Medical Research Council
Funding Amount
$796,252.00
Summary
A major role of our kidneys is to filter our blood. A key cell type in our kidney filters is an octopus-shaped cell known as the podocyte. If we are not born with enough podocytes, or if the filters grow too large after birth due for example to excessive weight gain, the podocytes cannot adequately filter the blood, and this can lead to kidney disease. We will measure podocyte endowment at birth, and assess the effects of weight gain and loss after birth on podocyte features and kidney health.
Transgenerational Effects Of Male Obesity - Mechanisms And Interventions
Funder
National Health and Medical Research Council
Funding Amount
$829,143.00
Summary
Childhood obesity is associated with obesity in either parent, and obese children tend to become obese adults, forming an intergenerational cycle that promotes obesity. We have identified paternal obesity as an important novel target for intervention to stop the progression of the obesity epidemic. This project investigates supplementation of obese fathers with folate to prevent the adverse impact of paternal obesity on subsequent generations.
Disrupted Neurosteroid Synthesis Mediates The Adverse Effects Of Prenatal Stress
Funder
National Health and Medical Research Council
Funding Amount
$695,973.00
Summary
Maternal anxiety and related stress in pregnancy influences the fetus causing developmental changes that adversely affect the offspring leading to behavioural problems in childhood. However, mechanisms which transfer maternal changes to the fetus are unclear. We propose that disruption of the fetal-placental neurosteroid system is a major link. We will identify the deficits in this system caused by maternal stress and then examine therapies to reverse these disruptions.
The Transmission Of Perinatal Maternal Mental Health To Preschool Emotional Disorders: Examining Pathways And Intervention Points In The MPEWS Study
Funder
National Health and Medical Research Council
Funding Amount
$970,795.00
Summary
While it is known that depression, anxiety and stress in pregnancy increase the risk for poorer child mental health, what is unknown is the key pathways and intervention points to prevent this transmission of risk. This study will examine potential mechanisms and intervention points through a selected cohort study: Mercy Pregnancy and Emotional Wellbeing Study. This study follows 500 women and their children from first trimester in pregnancy until the children are 3 years of age.
Exercise In Males Born Growth Restricted To Restore Sperm Function Preventing Adverse Offspring Health
Funder
National Health and Medical Research Council
Funding Amount
$708,363.00
Summary
Males born growth restricted transmit heart disease and diabetes to their children. The mechanism of this transmission is unknown, but is likely due to altered sperm function. We aim to determine the impact growth restriction has on sperm function in men and rats, and establish the optimal window for rat exercise intervention to prevent disease transmission. We expect that exercise in juvenile life will prevent, whereas exercise in adults may ameliorate disease outcomes by improving the sperm.
How Does Exercise Ameliorate Programming Of Metabolic Dysfunction In Offspring Of Obese Mothers?
Funder
National Health and Medical Research Council
Funding Amount
$524,121.00
Summary
Obesity is a worldwide disease, reflecting an interaction between our environment (diet, physical activity) and genes. We know that a mother's unhealthy diet can predispose offspring to diabetes, and exercise can improve this, but the underlying mechanisms are poorly understood. Here we will examine how exercise can benefit offspring of obese mothers, and test a drug that mimics the effects of exercise. The proposed research will provide insight into ways of reducing the obesity epidemic.
How Does Paternal Obesity Influence Offspring Glucose Tolerance?
Funder
National Health and Medical Research Council
Funding Amount
$503,398.00
Summary
Obesity and diabetes are closely related to these conditions in either parent, but how the father contributes is unclear. We have shown that normal females mated with obese fathers consuming high fat diet, produce offspring who develop glucose intolerance and impaired insulin secretion. This work will examine the mechanisms underlying this effect in the rat, testing a novel role for environmental factors in the father on disease in offspring that may be relevant to the growing obesity epidemic.
Understanding The Contribution Of Sympathetic Overactivity To Maternally Programmed Obesity Related Hypertension
Funder
National Health and Medical Research Council
Funding Amount
$605,083.00
Summary
Obesity and associated diseases are increasing worldwide. Aside from adult risk factors, the environment encountered during development may predispose to later disease. Our data shows that the diet consumed by pregnant mothers can influence the development of obesity and hypertension in her offspring and that the sympathetic nervous system becomes dysregulated. This project will assess how maternal fat intake in pregnancy affects sympathetic nervous system function in the offspring and we invest ....Obesity and associated diseases are increasing worldwide. Aside from adult risk factors, the environment encountered during development may predispose to later disease. Our data shows that the diet consumed by pregnant mothers can influence the development of obesity and hypertension in her offspring and that the sympathetic nervous system becomes dysregulated. This project will assess how maternal fat intake in pregnancy affects sympathetic nervous system function in the offspring and we investigate possible management strategies.Read moreRead less
Epigenetic And Neurobehavioural Changes In A New Mouse Model Of Foetal Alcohol Spectrum Disorders.
Funder
National Health and Medical Research Council
Funding Amount
$949,466.00
Summary
Prenatal alcohol exposure can result in foetal alcohol syndrome (FAS) which involves growth restriction, changes to skull morphology, central nervous system defects and intellectual disabilities. At present, diagnosis is difficult and under-reporting is suspected. We are using a mouse model to study the underlying causes of FAS, focussing on changes in brain structure and function. Hopefully we will identify markers that can be used for the early diagnosis of FAS in the future.
The Obesity Prone Oocyte- Causes, Consequences, Treatments
Funder
National Health and Medical Research Council
Funding Amount
$516,159.00
Summary
Obesity is perpetuated from mothers to offspring, in part due to changes in the oocyte (egg) that affect embryo growth. We have discovered that obesity causes changes in the mitochondria (the energy producers) of the egg. We hypothesise this causes long-lasting changes to embryo metabolism and will test, in mice, novel treatments to reverse the detrimental effects. The project will show how obesity affects embryo metabolism and growth, and determine whether defects can be prevented by drugs or l ....Obesity is perpetuated from mothers to offspring, in part due to changes in the oocyte (egg) that affect embryo growth. We have discovered that obesity causes changes in the mitochondria (the energy producers) of the egg. We hypothesise this causes long-lasting changes to embryo metabolism and will test, in mice, novel treatments to reverse the detrimental effects. The project will show how obesity affects embryo metabolism and growth, and determine whether defects can be prevented by drugs or lifestyle changes.Read moreRead less