ALLERGY, RESPIRATORY
Air Quality Better in Northeast, Midwest
Asthmatics Who Quit Smoking May Reverse Lung Damage
Childhood Food Allergies on the Rise
ALTERNATIVE MEDICINE
Could Chinese Herb Be a Natural Viagra?
Green Tea May Help Brain Cope With Sleep Disorders
Massage Therapy Helps Those With Advanced Cancer
ANIMAL CARE
Safe Toys for Dogs
'Comfort Dogs' Come to Emotional Rescue
Beware of Dog Bites
BONES & JOINTS
Heart Failure Raises Risk of Fractures
Fall Sports Peak Time for Lower Leg Damage
A Winning Strategy to Beat Spring Sporting Injuries
CANCER
Low Vitamin D Levels May Initiate Cancer Development
Broccoli May Help Battle Breast Cancer
Lifting Weights Can Ease Arm Swelling in Breast Cancer Survivors
CAREGIVING
With Age Comes Greater Risk of Hypothermia
U.S. Mental Health Spending Rises, But Many Still Left Out
Falls Are Top Cause of Injury, Death Among Elderly
CIRCULATORY SYSTEM
Support Network May Play Role in Benefits of Drinking
Laughter Can Boost Heart Health
Obesity Linked to Heart Failure Risk
COSMETIC
With Psoriasis, the Internet May Offer Hope
Gum Chewing May Cut Craving for Snacks
New Genetic Links to Baldness Discovered
DENTAL, ORAL
Gummy Bears Join Cavity Fight
Gum Disease Might Boost Cancer Risk
Laser Technology Spots Cavities Before They Start
DIABETES
Coffee, Tea Might Stave Off Diabetes
Drug May Not Help Diabetes-Related Eye Damage
Red-Grape Compound May Improve Diabetes
DIET, NUTRITION
Trans Fat Labeling Gets Tricky
Milk Destroys Antioxidant Benefits in Blueberries
Adding Garlic Might Cut Cancer Risk
DISABILITIES
Review Finds Marijuana May Help MS Patients
Could Your Cell Phone Help Shield You From Alzheimer's?
ENVIRONMENTAL HEALTH
EPA Alerts Seniors to Carbon Monoxide Dangers
Population-Based Strategy Urged to Cut U.S. Obesity Rate
Ozone Pollution Taking Toll on American Lives
EYE CARE, VISION
Statin Drugs Cause Eye Disorders
Half of U.S. Adults Lack 20/20 Vision
Kids' Eye Injuries From Golf Clubs Rare But Severe
FITNESS
Antioxidants Blunt Exercise Benefit, Study Shows
Will the Wii Keep You Fit?
Good Warm-Ups Could Halve Sports Injuries
GASTROINTESTINAL PROBLEMS
New Yogurt May Ease Stomach Ulcers
Japanese Herbals May Ease Gastro Woes
Gum Chewing May Speed Colon Surgery Recovery
GENERAL HEALTH
A Little Alcohol May Stave Off Alzheimer's
Deployment Takes Toll on Army Wives
Diet, Exercise May Slow Kidney Disease Progression
HEAD & NECK
Ski Helmets Encouraged for All
Many Children Will Outgrow Headaches
Zen May Thicken Brain, Thwart Pain
HEALTH & TECHNOLOGY
Imaging Sheds Light on How Acupuncture Works
'Comfort Dogs' Come to Emotional Rescue
Subway Defibrillators Save Lives
HEARING
Noise Hurts Men's Hearing More, Study Shows
Summer Sounds Can Lead to Hearing Loss
HEART & CARDIOVASCULAR
Vitamin B3 May Help Repair Brain After a Stroke
Soy Protein Doesn't Lower Cholesterol
A Little Chocolate May Do the Heart Good
INFECTIOUS DISEASE
The HPV Vaccine: Preventative Medicine or Human Sacrifice?
More Medicinal Uses for Pomegranate
Chinese 'Devil Dung' Plant Could Be a Swine Flu Fighter
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Gene Variation Found in Boys With Delinquent Peers
Boosting Kids' Stroke IQ May Save Lives
Coconut Oil May Help Fight Childhood Pneumonia
MEN'S HEALTH
Countdown to Hair Loss
Drinking Green Tea May Slow Prostate Cancer
More Vitamin C May Mean Less Chance of Gout
MENTAL HEALTH
Reminiscing Helps Build Emotional Strength
A Simple 'Thank You' Brings Rewards to All
Common Social Groups and Race, Seem to Help People Relate
PAIN
Acupuncture, Real or Fake, Eases Back Pain
Alleviating Rheumatoid Arthritis
Tai Chi May Help Ease Fibromyalgia
PHYSICAL THERAPY
PREGNANCY
For Baby and Mom Alike, Breast-Feeding May Be Best
Heart Defects in Newborns Linked to Antidepressants
Expectant Mom's Exercise Keeps Newborn's Birth Weight Down
SENIORS
Eating Well And Keeping Active As You Grow Old Will Help You Stay Sharp
The Juice From Beetroots May Boost Stamina
Friends, Not Grandkids, Key to Happy Retirement
SEXUAL HEALTH
SLEEP DISORDERS
Moderate Aerobics May Ease Insomnia Symptoms
Daylight Savings: Not a Bright Time for All
Sleeping Could Help Women Lose The Baby Fat
WOMEN'S HEALTH
Women Who Run May Benefit From Extra Folic Acid
Health Tip: Be More Comfortable During Childbirth
How Much Fish to Eat While Pregnant?
Add your Article

Green Tea May Help Brain Cope With Sleep Disorders

THURSDAY, May 22 (HealthDay News) -- Green tea may counter the cognitive problems that come with obstructive sleep apnea (OSA), a new study suggests.

Green tea polyphenols (GTP) appear to negate the increased oxidative stress that affects brain tissue in areas involved in learning and memory in people with OSA, reports the study, published in the second issue for May of the American Journal of Respiratory and Critical Care Medicine. GTPs are known to possess antioxidant properties.

The conclusion is based on giving drinking water laced with GTP to rats intermittently deprived of oxygen during 12-hour "night" cycles -- a condition that mimics the intermittent hypoxia (IH) that humans with OSA experience. The rats that drank green tea-treated water performed significantly better in a maze than rats that consumed plain water.

"GTP-treated rats exposed to IH displayed significantly greater spatial bias for the previous hidden platform position, indicating that GTPs are capable of attenuating IH-induced spatial learning deficits," lead author Dr. David Gozal, director of Kosair Children's Hospital Research Institute at the University of Louisville, said in a prepared statement. He added that GTPs "may represent a potential interventional strategy for patients" with sleep-disordered breathing.

"OSA has been increasingly recognized as a serious and frequent health condition with potential long-term morbidities that include learning and psychological disabilities," Gozal said. "A growing body of evidence suggests that the adverse neurobehavioral consequences imposed by IH stem, at least in part, from oxidative stress and inflammatory signaling cascades."

More information

The U.S. National Center for Complementary and Alternative Medicine has more about green tea.



-- Kevin McKeever



SOURCE: American Thoracic Society, news release, May 15, 2008

Last Updated: May 22, 2008

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