ALLERGY, RESPIRATORY
Combating Myths About Seasonal Allergies
Herbal Remedy Could Halt Peanut Allergy
Molecule in Skin May Link Eczema and Asthma
ALTERNATIVE MEDICINE
Acupuncture Eases Breast Cancer Treatment Side Effects
Green Tea May Help Brain Cope With Sleep Disorders
When Healing Becomes a Commodity
ANIMAL CARE
Animals Respond to Acupuncture's Healing Touch
'Comfort Dogs' Come to Emotional Rescue
Safe Toys for Dogs
BONES & JOINTS
Cane Use May Cut Progression of Knee Osteoarthritis
Extra Pounds in Mid-Life Affect Later Mobility
Bone Loss Stable on Restricted Calorie Diet
CANCER
Want to Stop Cancer? You Can, Experts Say
Exercise Cuts Lung Cancer Risk in Ex-Smokers by 45%
Hypnosis Cuts Hot Flashes for Breast Cancer Survivors
CAREGIVING
Caring for Aging Loved Ones Can Be a Catch-22
Injected Medication Errors a Major Problem
Critically Ill Patients Lack Vitamin D
CIRCULATORY SYSTEM
Grapefruit-Heavy Diet Helped Spur Dangerous Clot
Anemia Rates Down for U.S. Women and Children
Firefighters Have Narrower-Than-Normal Arteries, Study Finds
COSMETIC
Get Sugared!.... Its a sweet choice for hair removal
Contact Lenses Boost Kids' Self-Image
What to Do If You Have Unsightly Veins
DENTAL, ORAL
Health Tip: At Risk for Gingivitis
Acupuncture May Ease Anxiety Over Dental Work
A Sweet Way to Shield Baby's Teeth
DIABETES
Older Diabetics With Depression Face Higher Death Rate
Patients' Photos Help Boost Radiologists' Accuracy
Abnormal Heart Rhythm Boosts Death Risk for Diabetics
DIET, NUTRITION
Antioxidant-Rich Foods Lose Nutritional Luster Over Time
Eat Up, But Eat Healthy This Holiday Season
Coffee or Tea Consumption May Lower Stroke Risk
DISABILITIES
Review Finds Marijuana May Help MS Patients
Could Your Cell Phone Help Shield You From Alzheimer's?
ENVIRONMENTAL HEALTH
Radiation Exposure Linked to Aggressive Thyroid Cancers
Common Pesticide Tied to Development Delays in Kids
Gas Cooking Might Up Your Cancer Risk
EYE CARE, VISION
Gene-Transfer Proves Safe for Vision Problem
Eye Problems, Hearing Loss May Be Linked
Eye Test Could Spot Diabetes Vision Trouble Early
FITNESS
Fitness Fades Fast After 45
Community Exercise Programs Boost Seniors' Strength
Exercise in Adolescence May Cut Risk of Deadly Brain Tumor
GASTROINTESTINAL PROBLEMS
HRT Use Raises Risk of Stomach Trouble
Japanese Herbals May Ease Gastro Woes
Olive Oil May Protect Against Bowel Disease
GENERAL HEALTH
Can a Bad Boss Make You Sick?
What you need to know about swine flu.
Should the FDA Regulate Tobacco?
HEAD & NECK
Many Children Will Outgrow Headaches
Ski Helmets Encouraged for All
Zen May Thicken Brain, Thwart Pain
HEALTH & TECHNOLOGY
Using Light Therapy to Silence Harmful Brain Activity
Imaging Sheds Light on How Acupuncture Works
'Comfort Dogs' Come to Emotional Rescue
HEARING
Summer Sounds Can Lead to Hearing Loss
Noise Hurts Men's Hearing More, Study Shows
HEART & CARDIOVASCULAR
Shedding Light on Why Omega-3 Fatty Acids May Help the Heart
Coffee Is Generally Heart-Friendly
Potassium-Rich Foods May Cut Stroke, Heart Disease Risk
INFECTIOUS DISEASE
The HPV Vaccine: Preventative Medicine or Human Sacrifice?
Swine Flu Closes Three Schools in NYC
Viral Infection Might Trigger High Blood Pressure
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
St. John's Wort Doesn't Work for ADHD
Health Tip: Back Pain in Children
Dangerous Toys Still on Store Shelves, Report Finds
MEN'S HEALTH
Vigorous Exercise Cuts Stroke Risk for Men, Not Women
Whole Grains, Bran May Fight Hypertension in Men
Sunlight May Help Protect Men From Kidney Cancer
MENTAL HEALTH
Heal Your Life® Tips for Living Well
Green Spaces Boost the Body and the Mind
Common Social Groups and Race, Seem to Help People Relate
PAIN
Acupuncture, Real or Fake, Eases Back Pain
Alleviating Rheumatoid Arthritis
'Cell Phone Elbow' -- A New Ill for the Wired Age
PHYSICAL THERAPY
PREGNANCY
Prenatal Stress May Boost Baby's Asthma Risk
Woman in America Are Delaying Motherhood, Study Says
Music of Mozart Soothes the Preemie Baby
SENIORS
As You Age, Better Health Means Better Sex
Want Better Health in the New Year, Add Exercise to Your Day
Tai Chi May Help Ward Off Knee Pain in Seniors
SEXUAL HEALTH
SLEEP DISORDERS
Exercising Throat Muscles May Relieve Sleep Apnea
6 to 8 Hours of Shut-Eye Is Optimal for Health
Meditation May Help Put Primary Insomnia to Bed
WOMEN'S HEALTH
Women Who Run May Benefit From Extra Folic Acid
Supplements Might Reduce Breast Cancer Risk
Bitter Melon Extract May Slow, Stop Breast Cancer
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Healthy adults have potential autoimmune disease-causing cells

(HealthDay News) -- Healthy adults have potential autoimmune disease-causing cells, but these cells stay in an "off" state, a U.S. study shows.

Immune cells that attack the body cause autoimmune diseases such as lupus and rheumatoid arthritis (RA). Whether the switched-off cells in healthy adults are true precursors of the self-attacking immune cells and, if so, what prevents them from causing disease in certain people, isn't known, the researchers said.

J. Andrew Duty, of the Oklahoma Medical Research Foundation, and colleagues found that anergic (dormant) autoimmune disease-causing cells account for 2.5 percent of immune B-cells circulating in the blood of healthy adults.

These anergic cells don't appear to cause problems in healthy adults, but did produce self-reactive antibodies when exposed to a strong stimulus in lab experiments. This means these anergic cells may contain the precursors for the self-attacking B-cells in patients with autoimmune disease, the researchers said.

In previously healthy people, anergy may somehow break down and allow self-attacking B-cells to cause autoimmune disease.

The study was published in the Dec. 22 online issue of The Journal of Experimental Medicine.

More information

The U.S. National Women's Health Information Center has more about autoimmune diseases.



-- Robert Preidt



SOURCE: Rockefeller University Press, news release, Dec. 22, 2008

Last Updated: Dec. 22, 2008

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