ALLERGY, RESPIRATORY
Overweight Moms More Likely to Have Asthmatic Kids
Obesity May Raise Kids' Allergy Risk
'Safe' Ozone Levels May Not Be for Some
ALTERNATIVE MEDICINE
Ginger Can Ease Nausea From Chemotherapy Treatments
Quit Smoking the Holistic Way
Alternative Treatments May Boost IVF Success
ANIMAL CARE
'Comfort Dogs' Come to Emotional Rescue
Beware of Dog Bites
Safe Toys for Dogs
BONES & JOINTS
Rheumatoid Arthritis a Threat to the Heart
Scientists Discover How Osteoarthritis Destroys Cartilage
Brazilian Mint Tea Naturally Good for Pain Relief
CANCER
Many Cancer Patients Turn to Complementary Medicine
Bitter Melon Extract May Slow, Stop Breast Cancer
Smoking Ups Risk of Second Breast Cancer
CAREGIVING
With Alzheimer's, Health-Care Costs Could Triple
Simpler Sleep Apnea Treatment Seems Effective, Affordable
Many Alzheimer's Caregivers Admit to Abusive Behavior
CIRCULATORY SYSTEM
Tai Chi and Qigong Offer Many Health Benefits: Review
Review Confirms Links Between Diet, Heart Health
Potassium-Rich Foods May Cut Stroke, Heart Disease Risk
COSMETIC
What to Do If You Have Unsightly Veins
Get Sugared!.... Its a sweet choice for hair removal
Study Evaluates Laser Therapies for Hair Removal
DENTAL, ORAL
Gum Care Helps Control Type 2 Diabetes and Its Complications
Amino Acid May Be Key to Strong Teeth
Periodontal Disease Impacts Whole Health
DIABETES
Coffee, Tea Might Stave Off Diabetes
Arthritis Hits More Than Half of Diabetics
Chamomile Tea May Ward Off Diabetes Damage
DIET, NUTRITION
The 3LS Wellness Program for Reversing Chronic Symptoms and Creating Lasting Health
Mercury in Fish Linked to High Blood Pressure
6 Million U.S. Kids Lack Enough Vitamin D
DISABILITIES
Review Finds Marijuana May Help MS Patients
Could Your Cell Phone Help Shield You From Alzheimer's?
ENVIRONMENTAL HEALTH
Sunken, Unexploded Bombs Pose Cancer Risk
Fertilizer Ban Makes a Difference
Air Quality Better in Northeast, Midwest
EYE CARE, VISION
Poor Night Vision May Predict Age-Related Eye Disease
'Blind' Man Navigates Obstacle Course Without Error
Cases of Age-Related Farsightedness to Soar
FITNESS
Marathoners Go the Distance on Heart Health
Exercise in Adolescence May Cut Risk of Deadly Brain Tumor
Meditation May Help Put Primary Insomnia to Bed
GASTROINTESTINAL PROBLEMS
Intestinal Bacteria Trigger Immune Response
Olive Oil May Protect Against Bowel Disease
Japanese Herbals May Ease Gastro Woes
GENERAL HEALTH
Heal Your LifeŽ Tips for Living Well
Want Sun Protection? Wear Red or Blue
Kids More Apt to Smoke If Mom Did While Pregnant
HEAD & NECK
Many Children Will Outgrow Headaches
Zen May Thicken Brain, Thwart Pain
Ski Helmets Encouraged for All
HEALTH & TECHNOLOGY
Imaging Sheds Light on How Acupuncture Works
Using Light Therapy to Silence Harmful Brain Activity
Save Your Aging Brain, Try Surfing The Web
HEARING
Noise Hurts Men's Hearing More, Study Shows
Summer Sounds Can Lead to Hearing Loss
HEART & CARDIOVASCULAR
After a Stroke, Light Exercise Gets Hands, Arms Working Again
Drinking Your Way to Health? Perhaps Not
Man's Best Friend Helps Mend Broken Hearts
INFECTIOUS DISEASE
Swine Flu Is Now a Pandemic Says W.H.O.
Older Adults May Have Some Immunity to Swine Flu
Poor Restroom Cleaning Causes Cruise-Ship Sickness
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Eating Fish, Breast-Feeding Boost Infant Development
Scary Toxins Make Halloween Face Paints Questionable
Teens Lose More Weight Using Healthy Strategies
MEN'S HEALTH
Lots of Sex May Prevent Erectile Dysfunction
The Dark Side of Vegetarianism
More Vitamin C May Mean Less Chance of Gout
MENTAL HEALTH
Love Hormone May Ease Discussion of Painful Topics
Meditation May Boost College Students' Learning
Common Social Groups and Race, Seem to Help People Relate
PAIN
Alleviating Rheumatoid Arthritis
Are We Exercising Pain Away? Not So Much.
'Cell Phone Elbow' -- A New Ill for the Wired Age
PHYSICAL THERAPY
PREGNANCY
For Baby and Mom Alike, Breast-Feeding May Be Best
Expectant Mom's Exercise Keeps Newborn's Birth Weight Down
Woman in America Are Delaying Motherhood, Study Says
SENIORS
The Juice From Beetroots May Boost Stamina
Tai Chi May Help Ward Off Knee Pain in Seniors
Martial Arts Training May Save Seniors' Hips
SEXUAL HEALTH
SLEEP DISORDERS
Meditation May Help Put Primary Insomnia to Bed
Better Sleep, Grades Seem to Go Up
Lose Weight, Sleep Apnea May Improve
WOMEN'S HEALTH
Rheumatoid Arthritis Rising Among U.S. Women
Woman in America Are Delaying Motherhood, Study Says
Exercise During Pregnancy Keeps Newborn Size Normal
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New Clues to How Fish Oils Help Arthritis Patients

(HealthDay News) -- Researchers think they now understand the way that fish oils benefit people with rheumatoid arthritis and other conditions linked to inflammation.

The body converts an ingredient in fish oils called DHA into a chemical called Resolvin D2, which reduces the inflammation that can lead to various diseases, the scientists from Queen Mary, University of London and Harvard Medical School explained in their study published in the Oct. 28 issue of the journal Nature.

"We have known for some time that fish oils can help with conditions like arthritis, which are linked to inflammation. What we've shown here is how the body processes a particular ingredient of fish oils into Resolvin D2. We've also looked in detail at this chemical, determining at least some of the ways it relieves inflammation. It seems to be a very powerful chemical and a small amount can have a large effect," Mauro Perretti, a professor of immunopharmacology at Queen Mary, University of London, said in a university news release.

"This research is important because it explains at least one way in which fish oils can help in different types of arthritis. We can also work on this chemical and see if it can be used not only to treat or even prevent arthritis, but also as a possible treatment for a variety of other diseases associated with inflammation," said Perretti, who led the U.K. research team.

Unlike current anti-inflammatory drugs, Resolvin D2 doesn't appear to suppress the immune system, the researchers noted.

In arthritis, the body's immune system attacks healthy tissue. An important part of this process occurs when white blood cells (leukocytes) stick to the inner lining (endothelium) of blood vessels. In lab tests, Perretti and colleagues found that Resolvin D2 prompted endothelial cells to produce small amounts of nitric oxide, which acts as chemical signal that discourages white blood cells from sticking to the endothelium, thus preventing inflammation.

SOURCES: Queen Mary, University of London, news release, Oct. 28, 2009 Published on: October 28, 2009