ALLERGY, RESPIRATORY
Know Your Asthma Triggers
Keep Asthma, Allergies at Bay for the Holidays
Molecule in Skin May Link Eczema and Asthma
ALTERNATIVE MEDICINE
Acupuncture May Ease Depression During Pregnancy
Indigo Ointment Benefits Psoriasis Patients
Hypnosis Cuts Hot Flashes for Breast Cancer Survivors
ANIMAL CARE
Animals Respond to Acupuncture's Healing Touch
Safe Toys for Dogs
Separation Anxiety, Canine-Style
BONES & JOINTS
Gene Therapy May Ease Rheumatoid Arthritis
A Little Drink May Be Good for Your Bones
Childhood Dairy Intake Boosts Bone Health Later On
CANCER
Gene Studies Reveal Cancer's Secrets
Family History Key Player in Brain Cancer Risk
Acupuncture May Help Relieve Polycystic Ovary Syndrome
CAREGIVING
Older Caregivers Prone to Worse Sleep Patterns
Organ Donation Policies Vary Among Children's Hospitals
Acute Respiratory Distress Syndrome as Deadly as Ever
CIRCULATORY SYSTEM
Exercise Extends Life of Kidney Patients
Laughter Can Boost Heart Health
Varicose Veins May Mask Larger Problem
COSMETIC
Health Tip: After Liposuction
Science May Banish Bad Hair Days
Wrinkle Fillers Need Better Label Warnings: FDA Panel
DENTAL, ORAL
Gum Disease May Reactivate AIDS Virus
Gum Disease Treatment Doesn't Cut Preterm Birth Risk
Biological Product Shows Promise Against Gum Disease
DIABETES
Formula Puts Doctor, Patient Glucose Readings on Same Page
Exercise Protects Black Women From Type 2 Diabetes
Laughter May Lower Heart Attack Risk in Diabetics
DIET, NUTRITION
Holiday Eating Without the Guilt -- or the Pounds
6 Million U.S. Kids Lack Enough Vitamin D
Iced Teas Pose High Risk of Kidney Stones
DISABILITIES
Could Your Cell Phone Help Shield You From Alzheimer's?
Review Finds Marijuana May Help MS Patients
ENVIRONMENTAL HEALTH
Showerheads Harbor a Bounty of Germs
FDA Faulted for Stance on Chemical in Plastics
Global Warming Biggest Health Threat of 21st Century, Experts Say
EYE CARE, VISION
Unconscious Learning: In the Eye of the Beholder?
Magnetic Pulses to Brain Improve Lazy Eye in Adults
It's a Whole New Outlook for Cataract Patients
FITNESS
Run for Your Life
Walking Golf Course Affects Swing, Performance
Brisk Walk Can Help Leave Common Cold Behind
GASTROINTESTINAL PROBLEMS
Intestinal Bacteria Trigger Immune Response
Bowel Prep Harder on Women Than Men
Traditional Nonsurgical GERD Treatments Not Impressive
GENERAL HEALTH
Vitamin D and Bone Health: Are You Getting Enough of This Important Vitamin?
Workplace Wellness Seems to Really Work
Swine Flu Now Reported in All 50 States
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
Magnet Therapy May Ease Hard-to-Treat Depression
E-Mailing Your Way to Healthier Habits
HEARING
Summer Sounds Can Lead to Hearing Loss
Noise Hurts Men's Hearing More, Study Shows
HEART & CARDIOVASCULAR
Fewer Heart Attacks After England Goes Smoke-Free
Women Who Run May Benefit From Extra Folic Acid
Low Vitamin D Levels Linked to Heart Disease
INFECTIOUS DISEASE
Older Adults May Have Some Immunity to Swine Flu
More Medicinal Uses for Pomegranate
Bacterial Infections May Succumb to Honey
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Mom and Baby Alike May Benefit From Exercise
Teen Stress May Have Roots in First Three Years of Life
Music May Temper Pain in Preemies
MEN'S HEALTH
Vigorous Exercise Cuts Stroke Risk for Men, Not Women
Sunlight May Help Protect Men From Kidney Cancer
The Dark Side of Vegetarianism
MENTAL HEALTH
Keeping Mentally Active Seems To Keep The Brain Active
Man's Best Friend Helps Mend Broken Hearts
Consciousness Helps the Mind and Body Work Together
PAIN
Acupuncture, Real or Fake, Eases Back Pain
Tai Chi May Help Ease Fibromyalgia
'Cell Phone Elbow' -- A New Ill for the Wired Age
PHYSICAL THERAPY
PREGNANCY
Placebo Acupuncture Tied to Higher IVF Pregnancies
Mom's Extra Pregnancy Pounds May Raise Child's Heart Risks
Acupuncture May Ease Depression During Pregnancy
SENIORS
Any Old Cane Won't Do
Common Antioxidant Might Slow Parkinson's
More Whole Grains May Mean Less Fat
SEXUAL HEALTH
SLEEP DISORDERS
Exercising Throat Muscles May Relieve Sleep Apnea
Daylight Savings: Not a Bright Time for All
Meditation May Help Put Primary Insomnia to Bed
WOMEN'S HEALTH
Alternative Treatments May Boost IVF Success
Smoking Ups Risk of Second Breast Cancer
Soy May Not Lead to Denser Breasts
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Weight Loss Might Not Curb Knee Arthritis

FRIDAY, March 13 (HealthDay News) -- Losing weight may not help prevent the progression of knee osteoarthritis, a new study suggests.

Researchers looked at more than 2,600 people with the knee ailment who were at high risk for the condition because they were overweight or obese or had other risk factors such as knee pain or previous knee injuries. Participants were given a physical examination and hip bone mineral test and had X-rays taken of both legs at the start of the study and of their knees again after 30 months.

The study found that obesity did increase the risk of knee osteoarthritis but that weight had no overall effect on the likelihood of the disease progressing, said D.T. Felson, of Boston University School of Medicine, and colleagues.

However, the researchers did find that weight had an effect on progression depending on how the knees were aligned. People with high body mass index and neutral alignment had an increased risk of progressive knee osteoarthritis, those with valgus (knock-kneed) alignment had a small risk and people with varus (bowlegged) alignment had no increased risk.

Among participants who did not have knee osteoarthritis, obesity increased the risk of developing the disease, regardless of their knee alignment.

"The failure to demonstrate that obesity increases the overall risk of [osteoarthritis] progression in our study and others does not eliminate opportunities for weight loss trials aimed at slowing disease progression, especially among knees in extremities with neutral or valgus alignment," the researchers wrote.

The study was published in the March issue of the journal Arthritis Care & Research.

More information

The American Academy of Family Physicians has more about knee osteoarthritis.



-- Robert Preidt



SOURCE: Wiley-Blackwell, news release, March 3, 2009

Last Updated: March 13, 2009

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