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Voltage Dependent Calcium Channels And Vascular Function: Do Microdomains Determine Function?
Funder
National Health and Medical Research Council
Funding Amount
$597,682.00
Summary
Blood flow depends on arterial diameter which can change with contraction of muscle in the vessel wall. Calcium influx through one type of channel in the muscle cells has been considered critical, but drugs targeting these channels have not succeeded in treating the arterial spasm which occurs after stroke and head injury. Our study will investigate the existence and role of other calcium channels in brain arteries. Knowledge gained will likely lead to development of new drug targets for stroke.
Does NADPH Oxidase Link Gender, Hormone Replacement Therapy And Outcome After Stroke?
Funder
National Health and Medical Research Council
Funding Amount
$481,439.00
Summary
This project will assess whether the reduction of a novel mechanism to open brain arteries (i.e. via activation of 'Nox' proteins and generation of oxygen radicals) is a possible explanation of why hormone replacement therapy (HRT) increases the risk of stroke in postmenopausal women. We will compare brain artery function of normal mice with those deficient in certain Nox genes in models of menopause, HRT and stroke. This knowledge should lead to safer stroke therapies in women and men.