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Biological Science Seminar Series - Aditi Pradeep Vyas

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Thursday, March 3, 2022, 3 pm– 4 pm

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Aditi Pradeep Vyas 
PhD candidate of Biological Sciences
Michigan Technological University


Mental Stress Pressor Response and Aortic Wave Reflection


Abstract: Reactivity to mental stress has been linked to cardiovascular risk, and is shown to negatively influence aortic wave reflection for up to an hour after acute mental arithmetic. It has been postulated that sympathetic catecholamine release during stressful tasks drives the sustained elevation in wave reflection. In the study, they sought to determine how muscle sympathetic nerve activity (MSNA) and mean arterial pressure (MAP) reactivity influence post mental stress aortic augmentation index (AIx). Their results indicate that the aortic wave reflection responses to mental stress appears to be linked to the pressor response, but not sympathetic or perceived stress responses. This is novel preliminary data that suggests there may not be a direct link between sympathetic activation and aortic wave reflection following cognitive stress.

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