ALLERGY, RESPIRATORY
Obesity May Raise Kids' Allergy Risk
Keep Asthma, Allergies at Bay for the Holidays
Know Your Asthma Triggers
ALTERNATIVE MEDICINE
Fish Oil's Benefits Remain Elusive
Maggots as Good as Gel in Leg Ulcer Treatments
Insight on Herbals Eludes Doctors, Patients Alike
ANIMAL CARE
Beware of Dog Bites
Rest Easy. When It Comes to Swine Flu, Your Pet Is Safe
Animals Respond to Acupuncture's Healing Touch
BONES & JOINTS
Genes May Help Drive Rotator Cuff Injury
Hip Replacement Boosts Mobility at Any Age
Pain More a Cause of Arthritis Than a Symptom
CANCER
More Cancer Tests Mean More False-Positive Results
U.S. Reported 25,000 Cases of HPV-Related Cancers Annually
Drinking Green Tea May Slow Prostate Cancer
CAREGIVING
Weekend Admission May Be Riskier for GI Bleeding
Depression, PTSD Common Among Lung Transplant Patient Caregivers
Obese Children More Likely to Suffer Lower Body Injuries
CIRCULATORY SYSTEM
Smog Tougher on the Obese
Migraines in Pregnancy Boost Vascular Risks
Bad Marriages Harder on Women's Health
COSMETIC
With Psoriasis, the Internet May Offer Hope
Mouse Study Finds Molecule That Tells Hair to Grow
Study Evaluates Laser Therapies for Hair Removal
DENTAL, ORAL
Gum Disease Treatment Doesn't Cut Preterm Birth Risk
Acupuncture May Ease Anxiety Over Dental Work
Hormones May Be to Blame for Women's Cavity Rates
DIABETES
Chamomile Tea May Ward Off Diabetes Damage
Formula Puts Doctor, Patient Glucose Readings on Same Page
Lifestyle Factors Tied to Older Adults' Diabetes Risk
DIET, NUTRITION
10 Beginner Tips for Fast Weight Loss, the Low-Carb Way!
Eating your way to Good Health
School Meals Need to Get Healthier
DISABILITIES
Could Your Cell Phone Help Shield You From Alzheimer's?
Review Finds Marijuana May Help MS Patients
ENVIRONMENTAL HEALTH
Home Renovations by Affluent Families Can Unleash Lead Threat
Gene Explains How High-Fructose Diets Lead to Insulin Resistance
Smog Standards Need Tightening, Activists Say
EYE CARE, VISION
Contact Lens Cases Often Contaminated
Hybrid Cars Pose Risk to Blind, Visually Impaired
Decorative Halloween Eye Lenses May Pose Serious Risks
FITNESS
Exercise Extends Life of Kidney Patients
Almost Two-Thirds of Americans Meet Exercise Guidelines
Exercise 30 Minutes a Day? Who Knew!
GASTROINTESTINAL PROBLEMS
New Yogurt May Ease Stomach Ulcers
Traditional Nonsurgical GERD Treatments Not Impressive
Gum Chewing May Speed Colon Surgery Recovery
GENERAL HEALTH
Have a Goal in Life? You Might Live Longer
Laugh and the World Understands
Even Young Kids Can Learn CPR
HEAD & NECK
Many Children Will Outgrow Headaches
Zen May Thicken Brain, Thwart Pain
Ski Helmets Encouraged for All
HEALTH & TECHNOLOGY
'Cell Phone Elbow' -- A New Ill for the Wired Age
Imaging Sheds Light on How Acupuncture Works
Subway Defibrillators Save Lives
HEARING
Noise Hurts Men's Hearing More, Study Shows
Summer Sounds Can Lead to Hearing Loss
HEART & CARDIOVASCULAR
Vigorous Exercise Cuts Stroke Risk for Men, Not Women
How Weight Loss Can Help the Heart
Kids With Vitamin D Deficiency Linked to Heart Trouble
INFECTIOUS DISEASE
Swine Flu Now Reported in All 50 States
Hand Washing 10 Times a Day May Help Keep Flu Away
Swine Flu Closes Three Schools in NYC
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
3 Home Habits Help Youngsters Stay Slim
Teen Stress May Have Roots in First Three Years of Life
School Phys. Ed. Injuries Up 150 Percent
MEN'S HEALTH
The Dark Side of Vegetarianism
More Vitamin C May Mean Less Chance of Gout
Exercise May Prevent Prostate Cancer: Study Shows
MENTAL HEALTH
Common Social Groups and Race, Seem to Help People Relate
Green Spaces Boost the Body and the Mind
Drink Away Dementia?
PAIN
Acupuncture, Real or Fake, Eases Back Pain
Tai Chi May Help Ease Fibromyalgia
Alleviating Rheumatoid Arthritis
PHYSICAL THERAPY
PREGNANCY
Expectant Mom's Exercise Keeps Newborn's Birth Weight Down
Yoga's Benefits Outweigh Risks for Pregnant Women
Pre-Pregnancy Weight Linked to Babies' Heart Problems
SENIORS
Life Expectancy in U.S. Hits New High
The Juice From Beetroots May Boost Stamina
Common Antioxidant Might Slow Parkinson's
SEXUAL HEALTH
SLEEP DISORDERS
Meditation May Help Put Primary Insomnia to Bed
6 to 8 Hours of Shut-Eye Is Optimal for Health
Lose Weight, Sleep Apnea May Improve
WOMEN'S HEALTH
Rheumatoid Arthritis Rising Among U.S. Women
Frankincense Provides Relief for Osteoarthritis
Heal Your Life® Tips for Living Well
Add your Article

Antioxidant-Rich Diet May Protect Against Eye Disease

(HealthDay News) -- Eating plenty of antioxidant-rich food such as blueberries, artichokes and pecans may help protect against macular degeneration, the leading cause of age-related blindness in the United States and other developed countries.

U.S. researchers found that antioxidants disrupt a link between two processes in the retina that, in combination, contribute to macular degeneration. Antioxidants also extend the lifetime of irreplaceable photoreceptors and other retinal cells.

The "destructive synergy" that causes macular degeneration occurs when a buildup of a compound called A2E disrupts energy production in mitochondria, the "power plants" in cells, the researchers said. The lack of energy interferes with daily cleaning and maintenance of photoreceptors and another type of retinal cell. This leads to more buildup of A2E and a continuing cycle that results in the destruction of the vital visual cells that can't be replaced.

Experiments using visual cells from humans, rats and cows showed that antioxidants could completely counter the damage caused by this process, said the researchers from Brigham Young University and Weill Medical College of Cornell University.

"The implication is that people at risk of macular degeneration could help prevent the disease by consuming antioxidants," study author Heidi Vollmer-Snarr, a Brigham Young chemist, said in a university news release.

The study was published online in the Journal of Biological Chemistry.

"This work by Dr. Vollmer-Snarr and colleagues ties these two damaging processes together and demonstrates the harm they cause in combination is much more than would be expected," Dr. Paul Bernstein, of the University of Utah's Moran Eye Center, said in the news release. "This new knowledge," added Bernstein, who wasn't involved in the study, "suggests the possibility of interventions which could prove to be powerful ways to prevent or delay age-related macular degeneration."

More information

The U.S. National Eye Institute has more about age-related macular degeneration.



-- Robert Preidt



SOURCE: Brigham Young University, news release, Aug. 19, 2008

Last Updated: Aug. 29, 2008

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