Author Interviews, Diabetes, Obstructive Sleep Apnea / 12.09.2014
Sleep Apnea Predisposes To Impaired Brain Blood Flow With Physical Activity
MedicalResearch.com Interview with:
Paul M. Macey, Ph.D.
Assistant Professor in Residence
Associate Dean for Information Technology and Innovations,
Chief Innovation Officer UCLA School of Nursing and Brain Research Institute
Medical Research: What are the main findings of the study?
Dr. Macey: People with sleep apnea are less able to control the blood flowing to their brain, in particular when they grip tightly, or have their foot put in cold water. We measured changes in blood flowing through the brain using an MRI scanner while people gripped hard, had their foot placed in cold water, and breathed out hard into a tube with a very small hole in it. These activities all lead to more blood flowing to the brain in healthy people, which probably helps protect the cells from being starved of blood and oxygen. However, people with sleep apnea send less blood that the healthy participants during the gripped and cold foot activities.
A further important finding is that women with sleep apnea are worse off than men. The female patients showed much weaker blood flow than the males, even accounting for normal differences between men and women.
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