Rheumatoid Arthritis
Rheumatoid arthritis is an inflammatory disease
that may affect many joints in the body.
Rheumatoid arthritis is a chronic disease, mainly
characterized by inflammation of the lining, or
synovium, of the joints. It can lead to long-term
joint damage, resulting in chronic pain, loss of
function and disability.
Rheumatoid arthritis may start in any joint but
ferquently affects the smaller joints in the
hands.
Joint
involvement is always symmetrical meaning that
joints on both sides (right & left) of the body
are affected at the same time.
The
disease can also affect the eyes, lungs, heart and
blood vessels.
Common
symptoms include:
·
Fatigue.
·
Joint stiffness, particularly in the morning and
when sitting for long periods of time.
·
Flu-like symptoms, including a low-grade fever.
·
Rheumatoid nodules, or lumps of tissue under the
skin. These appear in about one-fifth of people
with RA.
·
Loss
of appetite, depression, weight loss, anemia, cold
and/or sweaty hands and feet.
·
Involvement of the glands around the eyes and
mouth, causing decreased production of tears and
saliva.
The
exact cause of RA is not known but we do know that
the immune system plays an important part in RA.
In a
healthy immune system the white blood cells
produce anitbodies that protect the body against
foriegn substances.
In
Rheumatoid arthritis the immune system mistakes
healthy tissue for a foriegn invader and attacks
it.
In
addition to the inflammation of the synovial
lining the surrounding muscles and tendons also
are weakend.
TNF, a
proinflammatory cytokine produced by immune system
plays a crucial role in causing joint inflammation
Recently, Anti-TNF therapy has been found to be
useful in the treatment of Rheumatoid arthritis
|