Understanding The Role Of Light Exposure In Individual Differences In The Circadian Response To Shift Work
Funder
National Health and Medical Research Council
Funding Amount
$803,672.00
Summary
This study will evaluate the effects of environmental light exposure on the response of the circadian pacemaker to night shift in a large sample of shift workers. It will refine a novel biomathematical model of the circadian pacemaker to improve predictions of circadian timing for individual shift workers. This prediction will inform personalised recommendations to enhance circadian adaptation to night shift and reduce the negative implications of circadian misalignment on health and safety.
Altering Meal Times To Reverse The Metabolic Consequences Of Shift Work
Funder
National Health and Medical Research Council
Funding Amount
$735,715.00
Summary
Shift work disrupts the internal body clock, which increases the risk for obesity and type 2 diabetes. Our research demonstrates meal timing plays an important role in this metabolic disturbance. Data from animal studies suggests that the adverse consequences of shift work can be reduced by eating only during the day. This study will investigate if this also occurs in humans, potentially leading to a straightforward solution to reduce the burden of chronic diseases in shift workers.
I am a physiologist investigating the role of molecular rhythmicity in physiological systems. My work focuses on the impact of disrupted rhythmicity on metabolism, cancer and fertility at the cellular level and is of particular importance when considering
The Impact Of Sleep Disturbance On Cardiometabolic Function
Funder
National Health and Medical Research Council
Funding Amount
$295,223.00
Summary
Excess cardiovascular death is common in rotating shiftwork and obstructive sleep apnoea (OSA) populations. Substantial evidence links sleep disturbance in both ‘states’ to these adverse outcomes. This research will quantify the cardiovascular risk that sleep disturbance poses in both populations, determine whether people with untreated OSA who engage in shiftwork have amplified risk and determine whether a novel diet of high protein during shiftwork reduces risk. The findings may provide strate ....Excess cardiovascular death is common in rotating shiftwork and obstructive sleep apnoea (OSA) populations. Substantial evidence links sleep disturbance in both ‘states’ to these adverse outcomes. This research will quantify the cardiovascular risk that sleep disturbance poses in both populations, determine whether people with untreated OSA who engage in shiftwork have amplified risk and determine whether a novel diet of high protein during shiftwork reduces risk. The findings may provide strategies that could improve health in shiftworkers.Read moreRead less
Impact Of Disrupted Sleep And Rhythms During Pregnancy On The Mother And Her Offspring
Funder
National Health and Medical Research Council
Funding Amount
$796,979.00
Summary
Sleep disruption and circadian rhythm disturbances are emerging as a significant public health issue for all shift workers. The objective of this study is to further define and understand the effects of disrupted sleep rhythms specifically during pregnancy on the mother’s metabolism and the long term impact on the metabolic health of her offspring. The long term aim is to use the research outcomes to develop strategies for prevention of the harm to mother and child.
Circadian Mechanisms For Sex Differences In Shift Work Tolerance
Funder
National Health and Medical Research Council
Funding Amount
$562,002.00
Summary
It is well-established that women respond more poorly than men to shift work schedules, having more health complaints, more drowsiness and more accidents at work than men. The physiological cause of this sex difference is not known. Our research suggests that differences in the circadian rhythms of women and men may promote shift work intolerance in women. This study is designed to examine sex differences in the effect of office-level light on the biological clock during a simulated night shift.
Circadian Rhythm Disruption And Metabolic Function
Funder
National Health and Medical Research Council
Funding Amount
$626,018.00
Summary
Shiftwork is an under-researched risk factor for obesity and diabetes. Because shiftwork disrupts hormonal and sleep rhythmicity, eating patterns and light exposure, abnormal rhythmicity may be a causal factor in metabolic disease. Direct evidence for the link is lacking and the underlying mechanisms responsible are unknown. This project aims to understand how shiftwork may lead to diabetes and obesity, knowledge essential for the design and testing of potential interventions.
The Consequences Of Simulated Shift Work Exposure During Gestation On The Metabolic Health Of The Adult Offspring.
Funder
National Health and Medical Research Council
Funding Amount
$555,892.00
Summary
Shiftwork is associated with increased risk for preterm birth & spontaneous abortion. In an animal model simulated shiftwork exposure during pregnancy increases fat deposits & reduces glucose tolerance in the adult offspring, suggesting exposure during pregnancy has lifelong health consequences for the progeny. This project will investigate the impact of shiftwork during gestation on the metabolic health of the offspring, & determine the stage of pregnancy most susceptible.
Randomised Controlled Trial Of A Light Intervention To Enhance Alertness And Performance In Night Shiftworkers
Funder
National Health and Medical Research Council
Funding Amount
$708,736.00
Summary
Shiftworkers commonly experience high levels of fatigue during night shift, with decreased alertness and performance levels, placing them at high risk for accidents and injuries. Despite the large number of shiftworkers in Australia, effective fatigue management tools are lacking. Light increases alertness, and may provide an unobtrusive means to increase safety in shiftworkers. We will study the effectiveness of a novel method of light exposure to improve alertness in night shiftworkers.