Navigation Links
UCLA Imaging Study Reveals How Pure Oxygen Harms the Brain

Recent research suggests that inhaling straight oxygen can harm the brain. A new UCLA brain-imaging study reveals how actually it affects.

Published in the edition of Public Library of Science (PLoS) Medicine, the findings fly in the face of national guidelines for medical practice and recommend a new approach adding carbon dioxide to the gas mix to preserve brain function in patients.

"For decades, the medical community has championed 100 percent oxygen as the gold standard for resuscitation. But no one has reported what happens inside our brains when we inhale pure oxygen," explained Ronald Harper, distinguished professor of neurobiology at the David Geffen School of Medicine at UCLA. "What we discovered adds to a compelling body of evidence for modifying a widely practiced standard of care in the United States."

Harper's team used functional magnetic resonance imaging (fMRI) to capture detailed pictures of what occurs inside the human brain during two different breathing scenarios. The technique detects subtle increases in blood flow triggered by the activation of different parts of the brain, causing these regions to glow or "light up" on the color scan.

The researchers scanned the brains of 14 healthy children, ages 8 15, as they inhaled 100 percent oxygen through a mouthpiece, and monitored their breathing and heart rates. After waiting eight minutes for the youngsters' breathing to return to normal, the team added 5 percent carbon dioxide to the gas mixture and repeated the scan.

A comparison of the two scans revealed dramatic differences.

"When the children inhaled pure oxygen, their breathing quickened, resulting in the rapid exhalation of carbon dioxide from their bodies," said coauthor Paul Macey, associate researcher in neurobiology. "The drop in carbon dioxide narrowed their blood vessels, preventing oxygen from reaching tissue in the brain and heart."


'"/>




Page: 1 2 3

Related medicine news :

1. Imaging Modality That Might Help Diagnose Depression
2. Being Obese Increases Ones Risk Of A wrong Diagnosis During Medical Imaging
3. Optical Imaging Added To Ultrasound To Improve Imaging Of Breast Cancer
4. Using Eyes As The Line Of Reference For Fetal Brain Imaging
5. Three In One Ultrasound Probe For 3-D Imaging Of Heart And Tissue Destruction Developed
6. New Computerized Imaging Systems Help In Better Dental Treatment Planning
7. Magnetic Resonance Imaging Can Now Be Used For Mind Reading
8. New Cardiac Angiography Technique For Improved Imaging Of Coronary Veins
9. Brain Is More Active While Hiding The Truth, Reveals fMRI Imaging
10. 3-D Imaging For Monitoring Reactor Systems, Power Plants
11. Brian Imaging Can Foretell Results Of Treating Depression
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: UCLA Imaging Study Reveals How Pure Oxygen Harms the Brain

(Date:11/27/2014)... 27, 2014 In a world ... to sleep has lessened, and due to the ... quality of sleep has eroded. According to Web ... the job (Reference: http://www.webmd.com/sleep-disorders/features/sleep-deprivation-workplace ). This remarkably ... by an incalculable amount, leading not only to ...
(Date:11/27/2014)... (PRWEB) November 27, 2014 "As a ... embarrassing side effects of urinary incontinence," said an inventor ... and developed this specialized accessory to prevent leakage and ... Incontinence to absorb urine leakage. This prevents stains on ... potential embarrassment. The pad ensures that the individual has ...
(Date:11/27/2014)... Nov. 26, 2014 (HealthDay News) -- Most babies and ... cold, the U.S. Food and Drug Administration says. ... given to children younger than 2 because they could ... warned. American adults average about three colds a ... get a cold, parents might want to give them ...
(Date:11/27/2014)... November 27, 2014 In order to enable ... Sharpes, Fla., designed an easy way to avoid touching a ... He then created a prototype of the patent-pending Toilet Tamer, ... a toilet seat and/or lid in a more sanitary manner. ... spread of germs. Overall, it promotes good hygiene and peace ...
(Date:11/27/2014)... NV (PRWEB) November 27, 2014 Now ... shopping season has officially launched, Emassagechair.com has ... Cyber Monday Discount Event. , Negotiating on behalf ... with top massage chair brands, Emassagechair.com has generated significant ... best deals and biggest discounts yet. , Shoppers are ...
Breaking Medicine News(10 mins):Health News:Research Shows Surprising Number of US Workers Affected by Lack of Sleep 2Health News:Steer Clear of Cold Meds for Babies, FDA Advises 2Health News:Emassagechair.com is Excited to Announce Their Biggest Discount Event of the Year, Starting the Day After Thanksgiving and Lasting Through The Holiday Weekend. 2Health News:Emassagechair.com is Excited to Announce Their Biggest Discount Event of the Year, Starting the Day After Thanksgiving and Lasting Through The Holiday Weekend. 3Health News:Emassagechair.com is Excited to Announce Their Biggest Discount Event of the Year, Starting the Day After Thanksgiving and Lasting Through The Holiday Weekend. 4
... A recent, large-scale study on cat intestinal cancer has provided ... the findings could ultimately benefit humans. "We are looking ... find common risk factors," said Kim Selting, associate teaching professor ... mentored a former resident, Kerry Rissetto, as she examined intestinal ...
... , WEDNESDAY, Sept. 28 (HealthDay News) -- The influenza ... circulating in the United States at least four months before ... year, researchers say. Their finding comes from examinations of ... of 68 American soldiers who died of respiratory infections in ...
... trial evaluating whether daily use of an oral tablet ... infection in women is being modified because an interim ... of the study products, oral tenofovir, marketed under the ... safety monitoring board (DSMB) recommended that the Vaginal and ...
... Women generally have a lower risk of developing cardiovascular disease ... with lower rates of high blood pressure and a tendency ... of LDL ("bad") cholesterol. Then comes the great equalizer: menopause. ... than men and their cholesterol levels tend to worsen, even ...
... Survey of Children,s Health indicates 31 percent of Missouri ... physical activity requirements for students and nutritional standards for ... new study from the University of Missouri shows Jump ... effective in changing unhealthy youth behaviors. JIA aims ...
... likely than doctors in other areas to encourage parents to ... to a new study. The results are alarming because ... cancer and studies show that Appalachian women are more ... than women living elsewhere. "We found that pediatricians in ...
Cached Medicine News:Health News:University of Missouri study finds risk factors for cat cancer, could have human implications 2Health News:NIH modifies 'VOICE' HIV prevention study in women 2Health News:Physiology of cardiovascular disease: Gender disparities 2Health News:Students 'jump into action' for better health 2Health News:Pediatricians in Appalachia less likely to recommend HPV vaccine 2Health News:Pediatricians in Appalachia less likely to recommend HPV vaccine 3
(Date:11/26/2014)... N.C. , Nov. 25, 2014  At the ... Antonio this October, KaVo Kerr Group was ... Technology Expo, offering attendees the opportunity to see and ... well-respected key opinion leaders deliver lectures on the latest ... Group products include the new DEXIS CariVu Caries Detection ...
(Date:11/26/2014)... Nov. 25, 2014  Medtronic,s roughly $43 ... been widely discussed in the media for its ... a stronger leading player in one of the ... The healthcare market research firm said  the two ... a diverse set of solutions spanning inpatient to ...
(Date:11/26/2014)...  Unilife Corporation (NASDAQ: UNIS, ASX: UNS), a designer, ... announced that its Chairman and CEO, Alan Shortall ... 26th Annual Healthcare Conference at the New York Palace ... 2014. The conference presentation will be ... Webcast. To listen, please go to: http://ir.unilife.com/events.cfm . ...
Breaking Medicine Technology:KaVo Kerr Group Showcased in Pride Institute Technology Expo at ADA Annual Meeting 2KaVo Kerr Group Showcased in Pride Institute Technology Expo at ADA Annual Meeting 3Medtronic - Covidien: Beyond Taxes, Deal Will Create Patient Monitoring Power, according to Kalorama Information 2Medtronic - Covidien: Beyond Taxes, Deal Will Create Patient Monitoring Power, according to Kalorama Information 3Unilife to Present at the Piper Jaffray 26th Annual Healthcare Conference on December 2nd 2
The inner wall of the tube is coated with spray-dried lithium, ammonium or sodium heparin. These additives are anti-coagulants, which activate anti-thrombins, thus blocking the coagulation cascade of...
BD Vacutainer® Heparin Tubes are spray-coated with either lithium heparin or sodium heparin and are used for plasma determinations in chemistry....
VACUETTE paediatric tubes have decreased sample volumes and are ideal for small childrens' veins and geriatric patients....
VACUETTE paediatric tubes have decreased sample volumes and are ideal for small childrens' veins and geriatric patients....
Medicine Products: