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Toronto, July 8: The supplemental oxygen administration improves brain blood vessel function in patients with dementia suffering from lung disease, finds a study.
Research has shown that people with chronic obstructive pulmonary disease (COPD) have a higher risk of dementia. This could be due to lower brain oxygen levels as a result of problems with blood supply from the blood vessels in the brain.
The study, published in Experimental Physiology, has shown that oxygen therapy improves brain oxygen delivery and neurovascular function in patients with chronic obstructive pulmonary disease.
This improvement in cerebral oxygen supply and neurovascular function could provide a physiological link between oxygen therapy and a reduced risk of cerebrovascular disease such as stroke, mild cognitive impairment, and dementia in men. patients with COPD
. Ryan L. Hoiland, of the University of British Columbia, used ultrasound to see and measure blood flow in the brains of resting patients before and during the administration of this oxygen additional. Oxygen was delivered through the nasal pbadage for 20-30 minutes.
They also tested the link between brain activity and blood flow in the brain. Participants began this test with their eyes closed, opening them to read a standardized text.
The pairing of these ultrasound measurements with a measurement of the blood oxygen level allowed the authors to estimate the amount of oxygen delivered to the brain during the reading test
. during the reading. This was because the blood vessels in the brain dilated in response to the increased oxygen demand when the brain was active.
However, this study does not indicate the influence of long-term oxygen therapy on the function of blood vessels in the brain, the researchers noted.
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