ALLERGY, RESPIRATORY
Obesity May Raise Kids' Allergy Risk
Herbal Remedy Could Halt Peanut Allergy
New Spray Could Benefit Cystic Fibrosis Patients
ALTERNATIVE MEDICINE
Imaging Sheds Light on How Acupuncture Works
When Healing Becomes a Commodity
The Zen Way to Pain Relief
ANIMAL CARE
Animals Respond to Acupuncture's Healing Touch
Separation Anxiety, Canine-Style
'Comfort Dogs' Come to Emotional Rescue
BONES & JOINTS
Healthy adults have potential autoimmune disease-causing cells
Health Tip: Back Pain in Children
Scientists Discover How Osteoarthritis Destroys Cartilage
CANCER
Multiple Screening Strategy Boosts Cervical Cancer Detection
Bitter Melon Extract May Slow, Stop Breast Cancer
Smoking Ups Risk of Second Breast Cancer
CAREGIVING
Recession Scrambling Health Spending in U.S.
Robots May Come to Aging Boomers' Rescue
Most Women Struggle With Rising Health Care Costs
CIRCULATORY SYSTEM
Drink a Little Wine, Live a Little Longer
Common Antioxidant Might Slow Parkinson's
Support Network May Play Role in Benefits of Drinking
COSMETIC
Study Evaluates Laser Therapies for Hair Removal
Mouse Study Finds Molecule That Tells Hair to Grow
Contact Lenses Boost Kids' Self-Image
DENTAL, ORAL
Health Tip: At Risk for Gingivitis
Laser Technology Spots Cavities Before They Start
Rheumatoid Arthritis May Harm Gums
DIABETES
Chamomile Tea May Ward Off Diabetes Damage
Doctors Urged to Screen Diabetics for Sleep Apnea
Spices, Herbs Boost Health for Diabetics
DIET, NUTRITION
Eating your way to Good Health
Coffee Drinking Lowers Women's Stroke Risk
Licorice May Block Absorption of Organ Transplant Drug
DISABILITIES
Review Finds Marijuana May Help MS Patients
Could Your Cell Phone Help Shield You From Alzheimer's?
ENVIRONMENTAL HEALTH
Staying Slim Is Good for the Environment
Researchers ID Genetic Markers for Esophageal Cancer
Preparing for a Chlorine Gas Disaster
EYE CARE, VISION
Kids' Eye Injuries From Golf Clubs Rare But Severe
Kids Who Spend More Time Outdoors Have Better Vision
Glaucoma Associated With Reading Impairments in Elderly
FITNESS
Daily Exercise at School Yields Rewards
Basketball Star Details His Struggle With Gout
Moderate Aerobic Exercise Lowers Diabetics' Liver Fat
GASTROINTESTINAL PROBLEMS
Intestinal Bacteria Trigger Immune Response
New Guidelines Issued for Management of IBS
HRT Use Raises Risk of Stomach Trouble
GENERAL HEALTH
Bacterial Infections May Succumb to Honey
Household Insecticides May Be Linked to Autoimmune Diseases
Hidden Salt in Diet Haunts Many With Heart Failure
HEAD & NECK
Zen May Thicken Brain, Thwart Pain
Ski Helmets Encouraged for All
Many Children Will Outgrow Headaches
HEALTH & TECHNOLOGY
Combating Myths About Seasonal Allergies
'Cell Phone Elbow' -- A New Ill for the Wired Age
Imaging Sheds Light on How Acupuncture Works
HEARING
Summer Sounds Can Lead to Hearing Loss
Noise Hurts Men's Hearing More, Study Shows
HEART & CARDIOVASCULAR
Small Cuts in Salt Intake Spur Big Drops in Heart Trouble
Polyunsaturated Fats Really May Lower Heart Risk
Toothbrushing May Stave Off Heart Woes
INFECTIOUS DISEASE
Swine Flu Is Now a Pandemic Says W.H.O.
The HPV Vaccine: Preventative Medicine or Human Sacrifice?
Grapefruit Compound Inhibits Hepatitis C Virus
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Backpack Safety Should Be on Back-to-School Lists
Exercise Helps Reduce Falls in Young and Old
Fussy Babys Could Be Out Of Your Control
MEN'S HEALTH
Low Vitamin D Levels May Boost Men's Heart Attack Risk
Whole Grains, Bran May Fight Hypertension in Men
Countdown to Hair Loss
MENTAL HEALTH
Green Spaces Boost the Body and the Mind
Have a Goal in Life? You Might Live Longer
Heal Your Life® Tips for Living Well
PAIN
Tai Chi May Help Ease Fibromyalgia
Acupuncture, Real or Fake, Eases Back Pain
Are We Exercising Pain Away? Not So Much.
PHYSICAL THERAPY
PREGNANCY
Before Conceiving, Take Folic Acid for One Full Year
Calcium Supplements Cut Blood Lead Levels During Pregnancy
Woman in America Are Delaying Motherhood, Study Says
SENIORS
Video Gaming Just Might Fight Aging
High-Impact Activity May Be Good for Old Bones
More Whole Grains May Mean Less Fat
SEXUAL HEALTH
SLEEP DISORDERS
Daylight Savings: Not a Bright Time for All
Pay Attention to Signs That Say You're Too Fatigued to Drive
Meditation May Help Put Primary Insomnia to Bed
WOMEN'S HEALTH
Health Tip: Be More Comfortable During Childbirth
For Women, Moderate Midlife Drinking Linked to Healthier Old Age
Calcium Helps Ward Off Colon 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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