Rheumatoid Arthritis Article

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Time Life Magazine

CULVER PICTURES

COPING: Renoir kept painting only by tying a brush to his gnarled hand

Rheumatoid Arthritis

The Other Crippling Joint Disease

By Bjerklie

Posted Sunday, December 1, 2002; 10:31 a.m. EST

As debilitating as osteoarthritis can be, it at least develops gradually.

That may not seem like much consolation until you consider the other

arthritis—rheumatoid arthritis—which in severe cases can hit as fast and

hard as a freight train. " People who are jogging one day, " says Dr. Stanley

Cohen of Dallas' St. Medical Center, " can't get out of bed two weeks

later. "

Although their symptoms can be similar, the two diseases are very different.

Unlike osteoarthritis, which is focused on a particular joint, rheumatoid

arthritis is a systemic disease—an autoimmune disorder in which the body's

defense system attacks the joints by way of the thin layer of cells called

the synovium that line and lubricate the joints. The runaway immune response

clogs the synovium with infection-fighting cells that release proteins

called cytokines. These are compounds that fuel inflammation. The synovium

becomes engorged with new blood vessels and begins to grow, kudzu-like,

penetrating and further damaging cartilage and bone.

The most visible symptoms of rheumatoid arthritis are swollen joints and

crippling stiffness, particularly of the hands and feet. But it can also

cause fatigue, fever and loss of appetite, and in some cases it can affect

the heart, lungs and membranes that surround these organs. The disease,

which afflicts 2.5 million in the U.S., usually hits people between ages 30

and 50, but it can strike at any age, including childhood. It is three times

as common in women as in men and can shorten life by a decade.

When rheumatoid arthritis was given its name in the 19th century, those who

suffered from it—including Impressionist master Pierre-Auguste Renoir—had

little to look forward to beyond life in a wheelchair. Even in the 1950s,

says Cohen, there were still few treatments available. It was treated with

aspirin and cortisone, a powerful anti-inflammatory with severe side effects

(at lower doses it is still used). Injections of gold salts also provided

some relief, although no one really knew why.

Prospects have improved dramatically—especially, says Cohen, " if we treat

early and we treat aggressively. " Today the most effective treatments for

rheumatoid arthritis are combination therapies. Methotrexate, a cancer drug

which has been used to treat RA for 30 years, is augmented by other drugs,

including the recently developed but costly " biologics " such as etanercept

(Enbrel), infliximab (Remicade) and anakinra (Kineret). These are

genetically engineered versions of naturally occurring molecules that bind

or block the activity of cytokines. Also in very early development are drugs

designed to reduce the formation of the blood vessels that feed the

tumor-like growth of the synovium.

Researchers are also trying to understand better who gets rheumatoid

arthritis and why. They have discovered a genetic marker that is often

associated with the earliest onset and most severe forms of the disease. Yet

not all rheumatoid arthritis sufferers have the marker (and vice versa),

which makes scientists wonder whether rheumatoid arthritis is really a

single disease. Environmental factors may also play a role, although no one

knows whether the trigger is a virus, bacteria or something else.

Autoimmune diseases are always tricky. But even if rheumatoid arthritis

doesn't yield to a simple fix, it is becoming easier to manage. There is

indeed life beyond the wheelchair.

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