Glucosamine Stops Knee Arthritis in Women

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´╗┐Glucosamine Stops Knee Arthritis in Women March 15, 2004 -- The popular supplement glucosamine could do more than just ease arthritisknee pain. New research indicates that it may actually stop disease progression -- and possibly reverse it.

In the latest of an ongoing series of studies, European researchers studied the effect of glucosamine specifically in postmenopausal women already diagnosed with kneeosteoarthritis. After age 50, kneeosteoarthritis becomes more common in women -- possibly because of waning estrogen levels although medical research has not yet shown that, say the researchers. Osteoarthritis, caused by degeneration of cartilage that occurs with age, is the most common type of arthritis.

"What we found in studying postmenopausal women is what we found with our other population groups -- glucosamine sulfate certainly prevents the destruction of cartilage, slows progression of osteoarthritis, and improves symptoms of the disease," researcher Lucio C. Rovati, MD, of the University of Milano, tells WebMD. "And it may also rebuild cartilage in some people."

His new findings, published in the March/April issue of Menopause, come from two studies involving 414 women with knee osteoarthritis, most of whom had already experienced menopause. Half took 1,500 milligrams of glucosamine sulfate daily while the other women took a placebo. After three years, those taking glucosamine had experienced no further loss of cartilage as measured by knee X-rays, whereas the placebo group continued to experience cartilage destruction.

In addition, pain and function significantly improved among the women taking glucosamine compared with the placebo group where there was no such improvement in knee stiffness seen.

This improvement is of major clinical significance in terms of well-being, says Rovati, a professor of pharmacology. "The condition of women taking a placebo pill, meanwhile, worsened."

In previous studies, published in Archives of Internal Medicine and The Lancet, Rovati's team -- who include researchers from Belgium and the Czech Republic -- found similar levels of improvements when the same daily dosage was given to men and younger women with knee osteoarthritis.

What makes his new findings so important is that following menopause, rates of knee arthritis skyrocket in women. Up until now, that group of women had not been specifically studied, although postmenopausal women have been included in previous studies.
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