The brain regulates body temperature by a series of mechanisms, including the control of how much blood flows to the skin to lose or retain heat. The project aims to locate the brain temperature receptors and brain pathways that do this, using an animal model, the rat. At present they are not known.
Neural Basis Of The Thermal Instability That Leads To Menopausal Hot Flushes
Funder
National Health and Medical Research Council
Funding Amount
$330,535.00
Summary
Hot flushes and night sweats affect 80-90% of women during the menopause transition. In 20% of women these symptoms are severe. The mechanisms are not well understood, and non-hormonal treatments are urgently needed. We can investigate the basic brain mechanisms in an animal model, the sheep. The findings will elucidate the mechanisms that disrupt normal temperature regulation and thus lead the way to better therapies for this common, and often debilitating, condition. .
Hypothalamic Oxexin-synthesizing Neurons Regulate The Ultradian Basic Rest-Activity Cycle (BRAC); Studies In Transgenic Rats And Mice
Funder
National Health and Medical Research Council
Funding Amount
$588,418.00
Summary
In the hypothalamus region of the brain there is a group of neurons that synthesize a neuropeptide messenger called orexin. In humans, malfunction of orexin neurons results in narcolepsy (abnormal sleepiness) and in disordered metabolism resulting in obesity. Our experiments, conducted in genetically-modified rats and mice, will elucidate the manner in which the orexin neurons integrate our behaviour (eg eating) with our physiological state (eg body and brain temperature, arterial blood pressure ....In the hypothalamus region of the brain there is a group of neurons that synthesize a neuropeptide messenger called orexin. In humans, malfunction of orexin neurons results in narcolepsy (abnormal sleepiness) and in disordered metabolism resulting in obesity. Our experiments, conducted in genetically-modified rats and mice, will elucidate the manner in which the orexin neurons integrate our behaviour (eg eating) with our physiological state (eg body and brain temperature, arterial blood pressure).Read moreRead less
Climate Change Impacts On Workplace Heat Extremes: Health Risk Estimates And Adaptive Options
Funder
National Health and Medical Research Council
Funding Amount
$741,938.00
Summary
Global warming will bring more hot (and extremely hot) days as Australia warms within the projected range of 2-4oC by 2070. Working in the heat is uncomfortable and requires rest breaks, yet pressure to keep working risks overheating and serious health problems. We will study the current effects on health and productivity on heat exposed workers, and model future trends in likely impacts under climate change in 8 (urban and rural) regions, with and without adaptive health protection strategies.