Rheumatoid arthritis:

INTRODUCTION:
Rheumatoid arthritis (RA) is a long-term disease that leads to inflammation of the joints and surrounding tissues. It can also affect other organs.
CAUSES AND RISK FACTORS:
The cause of RA is unknown. It is considered an autoimmune disease. The body's immune system normally fights off foreign substances, like viruses. But in an autoimmune disease, the immune system confuses healthy tissue for foreign substances. As a result, the body attacks itself.
RA can occur at any age. Women are affected more often than men.
RA usually affects joints on both sides of the body equally. Wrists, fingers, knees, feet, and ankles are the most commonly affected. The course and the severity of the illness can vary considerably. Infection, genes, and hormones may contribute to the disease.
SYMPTOMS:
While rheumatoid arthritis primarily affects joints, problems involving other organs of the body are known to occur. Extra-articular ("outside the joints") manifestations other than anemia (which is very common) are clinically evident in about 15–25% of individuals with rheumatoid arthritis.It can be difficult to determine whether disease manifestations are directly caused by the rheumatoid process itself, or from side effects of the medications commonly used to treat it – for example, lung fibrosis from methotrexate or osteoporosis from corticosteroids.
TREATMENT:
There is no known cure for rheumatoid arthritis, but many different types of treatment can alleviate symptoms and/or modify the disease process. Recommendations of the American College of Rheumatology (ACR), published in 2008, followed a trend in supporting earlier, more aggressive treatment of RA, and reflected heightened expectations of treatment effectiveness, including remission or substantial alleviation of symptoms for a rising percentage of patients.

The goal of treatment is twofold: alleviating the current symptoms, and preventing the future destruction of the joints with the resulting handicap if the disease is left unchecked. These two goals may not always coincide: while pain relievers may achieve the first goal, they do not have any impact on the long-term consequences. For these reasons, the ACR recommends that RA should generally be treated with at least one specific anti-rheumatic medication, also named DMARD (see below), to which other medications may be added depending on how long a person has had RA, how active the disease is, and prognostic factors (such as X-ray evidence of bone erosion; elevation of blood factors such as Rheumatoid factor, anti-cyclic citrullinated peptide, C-reactive protein, and erythrocyte sedimentation rate; age and gender; physical functioning; and smoking, for example).
Cortisone therapy has offered relief in the past, but its long-term effects have been deemed undesirable.However, cortisone injections can be valuable adjuncts to a long-term treatment plan, and using low dosages of daily cortisone (e.g., prednisone or prednisolone, 5–7.5 mg daily) can also have an important benefit if added to a proper specific anti-rheumatic treatment.

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