Neuroimaging During Pure Oxygen Breathing

Summary

The investigators will conduct a non-randomized clinical trial to examine the effect of pure oxygen breathing on the brain. The study will compare cerebral blood flow, cortical electrical activity, and cognitive performance in 32 persons during room air (21% oxygen) breathing and pure oxygen (100% oxygen) breathing. Subjects will be used as their own controls. The investigators aim to: 1. Determine whether breathing 100% oxygen changes blood flow through the brain. The investigators will learn whether brain blood flow is increased, decreased or stays the same. 2. Determine if changes that might occur in brain blood flow are also accompanied by changes in the brain's electrical activity (EEG). 3. Learn whether changes in the speed at which the brain processes information (cognitive function) accompany changes in brain blood flow and electrical activity that may be seen.

Timeline

Start

2017-10-02

Primary completion

2018-05-02

Completion

2018-05-09

Publications

• Background Gao Y, Goodnough CL, Erokwu BO, Farr GW, Darrah R, Lu L, Dell KM, Yu X, Flask CA. Arterial spin labeling-fast imaging with steady-state free precession (ASL-FISP): a rapid and quantitative perfusion technique for high-field MRI. NMR Biomed. 2014 Aug;27(8):996-1004. doi: 10.1002/nbm.3143. Epub 2014 Jun 3.
• Background Beall CM, Strohl KP, Blangero J, Williams-Blangero S, Decker MJ, Brittenham GM, Goldstein MC. Quantitative genetic analysis of arterial oxygen saturation in Tibetan highlanders. Hum Biol. 1997 Oct;69(5):597-604.
• Background Beall CM, Strohl KP, Blangero J, Williams-Blangero S, Almasy LA, Decker MJ, Worthman CM, Goldstein MC, Vargas E, Villena M, Soria R, Alarcon AM, Gonzales C. Ventilation and hypoxic ventilatory response of Tibetan and Aymara high altitude natives. Am J Phys Anthropol. 1997 Dec;104(4):427-47. doi: 10.1002/(SICI)1096-8644(199712)104:43.0.CO;2-P.
• Background Ma D, Gulani V, Seiberlich N, Liu K, Sunshine JL, Duerk JL, Griswold MA. Magnetic resonance fingerprinting. Nature. 2013 Mar 14;495(7440):187-92. doi: 10.1038/nature11971.
• Background Baekey DM, Feng P, Decker MJ, Strohl KP. Breathing and sleep: measurement methods, genetic influences, and developmental impacts. ILAR J. 2009;50(3):248-61. doi: 10.1093/ilar.50.3.248.
• Background Decker MJ, Tabassum H, Lin JM, Reeves WC. Electroencephalographic correlates of Chronic Fatigue Syndrome. Behav Brain Funct. 2009 Oct 6;5:43. doi: 10.1186/1744-9081-5-43.
• Background Decker MJ, Eyal S, Shinar Z, Fuxman Y, Cahan C, Reeves WC, Baharav A. Validation of ECG-derived sleep architecture and ventilation in sleep apnea and chronic fatigue syndrome. Sleep Breath. 2010 Sep;14(3):233-9. doi: 10.1007/s11325-009-0305-z. Epub 2009 Oct 9.

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