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    Chapter I Rheumatoid arthritis

    Chapter I Rheumatoid arthritis

    1. Overview

    Rheumatoid arthritis, sometimes referred to as rheumatoid disease, is achronic, progressive and disabling autoimmune disease that causes inflammation

    and pain in the joints, the tissue around the joints, and other organs in the human

    body. Rheumatoid arthritis usually affects the joints in the hands and feet first, but

    any joint may become affected. Patients with rheumatoid arthritis commonly have stiff

    joints and feel generally unwell and tired.

    Rheumatoid arthritis is an autoimmune disease. Our immune system is a

    complex organization of cells and antibodies designed to seek out and destroy

    organisms and substances which harm us, such as infections. When our immune

    system starts attacking our own bodies, mistaking body tissues for foreign invaders,

    we have an autoimmune disease.

    Individuals with an autoimmune disease have antibodies in their blood which

    target their own body tissues, resulting in inflammation. The immune system of a

    patient with rheumatoid arthritis attacks the lining of the joints, causing them to swell.

    As opposed to the wear-and-tear damage which occurs with osteoarthritis,

    rheumatoid arthritis affects the lining of the joints, resulting in painful swelling that can

    lead to bone erosion and joint deformity. Eventually the affected joints may become

    permanently damaged.

    Rheumatoid arthritis is referred to as a systemic illness. Systemic means it

    affects the entire body; in the case of rheumatoid arthritis, multiple organs in the body

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    Chapter I Rheumatoid arthritis

    can be affected. The patient may also have fevers and experience fatigue.

    Rheumatoid arthritis may also produce diffuse (spreading) inflammation in the lungs,

    the membrane around the lungs (pleura), pericardium (a double-walled sac that

    contains the heart and the roots of the great blood vessels) and the tough white outer

    coat over the eyeball (sclera); it can produce nodular lesions, most commonly in

    subcutaneous tissue under the skin.

    Rheumatoid arthritis is much more common that MS (multiple sclerosis) or

    leukemia. However, awareness of the diseases effects and severity are more

    restricted to patients, their caregivers and their relatives because it is not well

    publicized.

    Rheumatoid arthritis symptoms generally come and go. On some occasions

    symptoms may be mild, while on others they may be severe and extremely painful. A

    patient has aflare up when symptoms are bad. It is impossible to know when a flareup may come.

    Rheumatoid arthritis can be a very painful condition, leading to considerable

    loss of functioning and mobility. Diagnosis is made chiefly as a result of identifying

    signs and symptoms, as well as rheumatoid factor blood tests and X-rays. Diagnosis

    and the long-term management of the disease is generally carried out by a

    rheumatologist; a specialist in rheumatology.

    Rheumatoid arthritis affects all ages, races, and social and ethnic groups. It is

    most likely to strike people 35-50 years of age, but it can occur in children,teenagers, and elderly people. (A similar disease affecting young people is known as

    juvenile rheumatoid arthritis).

    Worldwide, about 1% of people are believed to have rheumatoid arthritis, but

    the rate varies among different groups of people. For example, rheumatoid arthritis

    affects about 5%-6% of some Native American groups, while the rate is very low in

    some Caribbean peoples of African descent.

    The rate is about 2%-3% in people who have a close relative with rheumatoid

    arthritis, such as a parent, brother or sister, or child.

    As many as half of those with rheumatoid arthritis are no longer able to work

    10-20 years after their condition is diagnosed. Although the disease has no cure,

    early diagnosis and prompt subsequent treatment of symptoms may slow the

    progression down, as well as making the patient more comfortable.

    2. History

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    Chapter I Rheumatoid arthritis

    The first known traces of arthritis date back at least as far as 4500 BC. A text

    dated 123 AD first describes symptoms very similar to rheumatoid arthritis. It was

    noted in skeletal remains of Native Americans found in Tennessee. In the Old World

    the disease is vanishingly rare before the 1600s and on this basis investigators

    believe it spread across the Atlantic during the Age of Exploration. In 1859 the

    disease acquired its current name.

    An anomaly has been noticed from investigation of Precolumbian bones. The

    bones from the Tennessee site show no signs of tuberculosis even though it was

    prevalent at the time throughout the Americas. Jim Mobley, at Pfizer, has discovered

    a historical pattern of epidemics of tuberculosis followed by a surge in the number of

    rheumatoid arthritis cases a few generations later. Mobley attributes the spikes in

    arthritis to selective pressure caused by tuberculosis. A hypervigilant immune system

    is protective against tuberculosis at the cost of an increased risk of autoimmune

    disease.

    The art ofPeter Paul Rubens may possibly depict the effects of rheumatoid

    arthritis. In his later paintings, his rendered hands show, in the opinion of some

    physicians, increasing deformity consistent with the symptoms of the disease.

    Rheumatoid arthritis appears to some to have been depicted in 16th century

    paintings. However, it is generally recognised in art historical circles that the painting

    of hands in the sixteenth and seventeenth century followed certain stylised

    conventions, most clearly seen in the Mannerist movement. It was conventional, for

    instance to show the upheld right hand of Christ in what now appears a deformed

    posture. These conventions are easily misinterpreted as portrayals of disease. They

    are much too widespread for this to be plausible.

    The first recognized description of rheumatoid arthritis was in 1800 by the

    French physician Dr Augustin Jacob Landr-Beauvais (17721840) who was based

    in the famed Salptrire Hospital in Paris. The name "rheumatoid arthritis" itself was

    coined in 1859 by British rheumatologist DrAlfred Baring Garrod.

    Notable cases

    Dorothy Hodgkin, Nobel prize winning scientist, developed severe deforming

    rheumatoid arthritis at age 28. In spite of this she continued her career and

    developed X-ray crystallography, which underpins much of the information

    known about rheumatoid arthritis. She also discovered the structure of insulin

    and enabled the discovery of the genetic code.

    Auguste Renoir, impressionist painter, whose later 'softer' style might have

    reflected in some way his severe disability.

    Christiaan Barnard, the first surgeon to perform a human-to-human heart

    transplant had to retire owing to the condition. He also wrote a book on living

    with arthritis.

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    Chapter I Rheumatoid arthritis

    James Coburn claimed to have healed the condition using pills containing a

    sulfur-containing compound on his return to acting.

    Erik Lindbergh, aviator and member of the X-Prize administration. Erik has

    been a spokesman for the arthritis drug Enbrel, as a result of his success with

    the treatment.

    Bob MortimerBritish comedian and actor.

    Kathleen Turnerand Aida Turturro have worked to raise public awareness of

    the condition

    Billy Bowden, international cricket umpire who had to retire from active play

    because of rheumatoid arhtirits.

    Melvin Franklin, bass singer of the Temptations. He treated RA with cortisone

    shots so he could perform.

    Jamie Farr, American actor, famous for his role as Max Klingeron the 1970s

    television series M*A*S*H.

    Sandy Koufax, An American Hall-of-Fame baseball pitcher who played from1955 to 1966 for the Los Angeles Dodgers.

    Jeffrey Gottfurcht An American who is attempting to be the first person with

    RA to climb to the top of Mt. Everest March 2011.

    3. Signs and symptoms

    A symptom is something the patient feels and reports, while a sign is

    something other people, such as the doctor detect. For example, pain may be a

    symptom while a rash may be a sign.

    The symptoms of rheumatoid arthritis come and go, depending on the degree

    of tissue inflammation. When body tissues are inflamed, the disease is active. When

    tissue inflammation subsides, the disease is inactive (in remission). Remissions can

    occur spontaneously or with treatment and can last weeks, months, or years. During

    remissions, symptoms of the disease disappear, and people generally feel well.

    When the disease becomes active again (relapse), symptoms return. The return of

    disease activity and symptoms is called a flare. The course of rheumatoid arthritisvaries among affected individuals, and periods of flares and remissions are typical.

    When the disease is active, symptoms can include fatigue, loss of energy, lack

    of appetite, low-grade fever, muscle and joint aches, and stiffness. Muscle and joint

    stiffness are usually most notable in the morning and after periods of inactivity.

    Arthritis is common during disease flares. Also during flares, joints frequently become

    red, swollen, painful, and tender. This occurs because the lining tissue of the joint

    (synovium) becomes inflamed, resulting in the production of excessive joint fluid

    (synovial fluid). The synovium also thickens with inflammation (synovitis).

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    Chapter I Rheumatoid arthritis

    In rheumatoid arthritis, multiple joints are usually inflamed in a symmetrical

    pattern (both sides of the body affected). The small joints of both the hands and

    wrists are often involved. Simple tasks of daily living, such as turning door knobs and

    opening jars, can become difficult during flares. The small joints of the feet are also

    commonly involved. Occasionally, only one joint is inflamed. When only one joint is

    involved, the arthritis can mimic the joint inflammation caused by other forms of

    arthritis, such as gout or joint infection. Chronic inflammation can cause damage to

    body tissues, including cartilage and bone. This leads to a loss of cartilage and

    erosion and weakness of the bones as well as the muscles, resulting in jointdeformity, destruction, and loss of function. Rarely, rheumatoid arthritis can even

    affect the joint that is responsible for the tightening of our vocal cords to change the

    tone of our voice, the cricoarytenoid joint. When this joint is inflamed, it can cause

    hoarseness of the voice.

    The most commonly affected joints are:

    The proximal interphalangeal (PIP) and metacarpophalangeal (MCP) joints of

    the hands (middle and base joints of the finger)

    The wrists, especially the ulnar-styloid articulation

    The shoulders

    Elbows

    Knees

    Ankles

    Metatarsophalangeal (MTP) joints (in the toes)

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    Chapter I Rheumatoid arthritis

    Note: The distal interphalangeal (DIP) joints are not usually affected (top joint of

    the finger)

    The spine is never affected, except the atlanto-axial articulation in late disease.

    Morning stiffness - morning stiffness is a hallmark symptom of rheumatoid arthritis,

    especially if it lasts more than an hour. Experts say that the duration of morning

    stiffness is usually a good indication of the inflammatory activity of the disease.

    Although patients with other forms of arthritis may have early morning joint stiffness,

    they tend not to last for more than an hour. There may be stiffness after long periods

    of inactivity, which tends to last longer than in cases of degenerative arthritis.

    Joint pain and swelling - the lining of the affected joint becomes inflamed - the skin

    over the joint becomes warm, red and swollen. The area is painful and tender to the

    touch.

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    Chapter I Rheumatoid arthritis

    Anemia - according to The National Health Service (NHS), UK, approximately 80%

    of patients with rheumatoid arthritis are anemic - there is a low number of red blood

    cells; the blood is unable to carry enough oxygen.

    Loss of appetite/Weight loss - a significant number of patients may experience loss

    of appetite, and subsequent weight loss.

    The patient may have red and puffy hands.

    The following non-specific systemic flu-like symptoms may be felt weeks to

    months before other symptoms appear:

    Fatigue (tiredness)

    Malaise

    Depression

    Fever - usually low grade (37 - 38C; 99 - 100F). Experts say that a higher

    fever often indicates an infectious cause (another illness).

    Flare-ups

    The symptoms of rheumatoid arthritis tend to be intermittent (sporadic); they

    come and go. Sometimes the patient will have a flare-up - the symptoms will be more

    intense and severe.

    Although flare-ups can occur at any time, they tend to be more painful in the

    morning, when the patient wakes up. As the day progresses symptoms will start to

    ease.

    Rheumatoid arthritis is a systemic illness (one that affects the entire body)

    Multiple organs in the body can be affected, including:

    Inflammation in the lungs - this usually causes no symptoms. If the patient

    develops shortness of breath medications may be prescribed to reduce

    inflammation in the lungs.

    Inflammation of the membrane around the lungs (pleura)

    Inflammation of the pericardium - a double-walled sac that contains the

    heart and the roots of the great blood vessels.

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    Inflammation of the tough white outer coat over the eyeball (sclera) -

    affects about 5% of patients. Symptoms may include red, painful and possibly dry

    eyes.

    Nodular lesions - about 1 in every 4 rheumatoid arthritis patients develops

    lumps under the skin - rheumatoid nodules. They tend to occur on the skin over the

    elbows and forearms. They may be painful, but not usually.

    Inflammation of the tear glands

    Inflammation of the salivary glands

    Inflammation of the cricoarytenoid joint - this is a joint in the larynx (voice

    box). When it is inflamed it can cause hoarseness.

    4. Cause

    The smooth lining of the membranes (thin layer of cells) that surround our

    joints is called the synovium. A flexible joint is lined by a synovial membrane. The

    synovium produces a clear substance - synovial fluid - which lubricates and

    nourishes the cartilage and bones inside the joint capsule.

    When the immune system attacks the synovium, rheumatoid arthritis may

    occur. Antibodies attack the synovium, leaving it sore and inflamed - the synovium

    becomes thicker and may eventually invade and destroy cartilage (the stretchy

    connective tissue between bones) and bone inside the joint. The joint is held together

    by tendons (tissue that connects bone to muscle) and ligaments (tissue that connects

    bone and cartilage). These tendons and ligaments weaken and stretch, and the joint

    eventually loses its shape and configuration. The joint may eventually be completely

    destroyed.

    Nobody really knows what starts off this process. Even though infectious

    agents such as viruses, bacteria, and fungi have long been suspected, none hasbeen proven as the cause. The cause of rheumatoid arthritis is a very active area of

    worldwide research. It is believed that the tendency to develop rheumatoid arthritis

    may be genetically inherited. It is also suspected that certain infections or factors in

    the environment might trigger the activation of the immune system in susceptible

    individuals. Environmental factors also seem to play some role in causing

    rheumatoid arthritis. For example, scientists have reported that smoking tobacco

    increases the risk of developing rheumatoid arthritis.

    5. Diagnosis

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    In its early stages rheumatoid arthritis may be difficult to diagnose. Its signs

    and symptoms - especially stiffness and inflammation - are similar to several other

    conditions.

    A GP (general practitioner, primary care physician) will carry out a physical

    examination. The doctor will carefully check the joints to see if there is any swelling

    (e.g. pain on squeeze test on the knuckles), as well as determining how easily they

    move. The patient will be asked about symptoms.

    The doctor may also order the following tests:

    Blood tests

    Erythrocyte sedimentation rate (ESR or sed rate) - this blood test detects and

    monitors inflammation in the body by measuring the rate at which red blood cells in

    a test tube separate from blood serum over a set period, becoming sediment in the

    bottom of the test tube. A high sedimentation rate is linked to more inflammation. In

    other words, if the red blood cells sink faster to the bottom of the test tube, it could

    mean that the patient has an inflammatory condition, such as rheumatoid arthritis.

    C-reactive protein (CRP) - CRP is produced by the liver. A higher CRP level is

    linked to the presence of inflammation in the body.

    Anemia - a significant proportion of patients with rheumatoid arthritis also have

    anemia; when not enough oxygen is carried in the blood, because of a lack of red

    blood cells. If the patient is found to have anemia it does not necessarily mean they

    have rheumatoid arthritis.

    Rheumatoid factor - this blood test determines whether rheumatoid factor (an

    antibody) is present in the patients blood. The majority of rheumatoid arthritis

    patients have this abnormal antibody in their bloodstream. During the early stages

    of the disease it is sometimes difficult to detect rheumatoid factor. As this antibody

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    is present in a small proportion of people without rheumatoid arthritis, this test

    cannot confirm the disease definitively.

    Imaging scans and X-rays - an X-ray of the patients joints can help the doctor

    determine what type of arthritis is present. Several X-rays can help track the

    progression of rheumatoid arthritis in the joints over time.

    MRI (magnetic resonance imaging) scans - can help the doctor determine

    more specifically what damage has been done to a joint. A MRI machine uses a

    magnetic field and radio waves to create detailed images of the body.

    Signs of destruction and inflammation on ultrasonography and magnetic

    resonance imaging in the second metacarpophalangeal joint in established

    rheumatoid arthritis. Thin arrows indicate an erosive change; thick arrows indicate

    synovitis. Ultrasonography (left side of image) in the (a) longitudinal and (b) the

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    Chapter I Rheumatoid arthritis

    transverse planes shows both signs of destruction and inflammation. Axial T1-

    weighted magnetic resonance images were obtained (c) before and (d) after contrast

    administration, also demonstrating synovitis. Additionally, a coronal T1-weighted

    magnetic resonance image (e) before contrast administration visualizes the same

    bone erosion as shown in panels c and d.

    The American College of Rheumatology has developed a system for

    classifying rheumatoid arthritis that is primarily based upon the X-ray appearance of

    the joints. This system helps medical professionals classify the severity of

    rheumatoid arthritis.

    Stage I

    no damage seen on X-rays, although there may be signs of bone thinning

    Stage II

    on X-ray, evidence of bone thinning around a joint with or without slight bone

    damage

    slight cartilage damage possible

    joint mobility may be limited; no joint deformities observed

    atrophy of adjacent muscle

    abnormalities of soft tissue around joint possible

    Stage III

    on X-ray, evidence of cartilage and bone damage and bone thinning around

    the joint

    joint deformity without permanent stiffening or fixation of the joint

    extensive muscle atrophy

    abnormalities of soft tissue around joint possible

    Stage IV

    on X-ray, evidence of cartilage and bone damage and osteoporosis aroundjoint

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    joint deformity with permanent fixation of the joint (referred to as ankylosis)

    extensive muscle atrophy

    abnormalities of soft tissue around joint possible

    Rheumatologists also classify the functional status of people with rheumatoid

    arthritis as follows:

    Class I: completely able to perform usual activities of daily living

    Class II: able to perform usual self-care and work activities but limited in

    activities outside of work (such as playing sports, household chores)

    Class III: able to perform usual self-care activities but limited in work and other

    activities

    Class IV: limited in ability to perform usual self-care, work, and other activities

    Distinguishing rheumatoid arthritis from other medical conditions

    Several other medical conditions can resemble RA, and usually need to be

    distinguished from it at the time of diagnosis:

    Crystal induced arthritis (gout, and pseudogout) - usually involves particular

    joints and can be distinguished with aspiration of joint fluid if in doubt

    Osteoarthritis - distinguished with X-rays of the affected joints and blood tests

    Systemic lupus erythematosus (SLE) - distinguished by specific clinical

    symptoms and blood tests (antibodies against double-stranded DNA)

    One of the several types ofpsoriatic arthritis resembles RA - nail changes and

    skin symptoms distinguish between them

    Lyme disease causes erosive arthritis and may closely resemble RA - it may

    be distinguished by blood test in endemic areas

    Reactive arthritis (previously Reiter's disease) - asymmetrically involves heel,

    sacroiliac joints, and large joints of the leg. It is usually associated with

    urethritis, conjunctivitis, iritis, painless buccal ulcers, and keratoderma

    blennorrhagica.

    Ankylosing spondylitis - this involves the spine and is usually diagnosed in

    males, although a RA-like symmetrical small-joint polyarthritis may occur in the

    context of this condition.

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    Hepatitis C - RA-like symmetrical small-joint polyarthritis may occur in the

    context of this condition. Hepatitis C may also induce Rheumatoid Factor auto-

    antibodies

    Rarer causes that usually behave differently but may cause joint pains:

    Sarcoidosis, amyloidosis, and Whipple's disease can also resemble RA.

    Hemochromatosis may cause hand joint arthritis.

    Acute rheumatic fever can be differentiated from RA by a migratory pattern of

    joint involvement and evidence of antecedent streptococcal infection. Bacterial

    arthritis (such as streptococcus) is usually asymmetric, while RA usually

    involves both sides of the body symmetrically.

    Gonococcal arthritis (another bacterial arthritis) is also initially migratory and

    can involve tendons around the wrists and ankles.

    6. Pathophisiology

    The key pieces of evidence relating to pathogenesis are:

    1. A genetic link with HLA-DR4 and related allotypes ofMHC Class II and the T cell-

    associated protein PTPN22.

    2. A link with cigarette smoking that appears to be causal

    3. A dramatic response in many cases to blockade of the cytokine TNF (alpha).

    4. A similar dramatic response in many cases to depletion ofB lymphocytes, but no

    comparable response to depletion ofT lymphocytes.

    5. A more or less random pattern of whether and when predisposed individuals are

    affected.

    6. The presence of autoantibodies to IgGFc, known as rheumatoid factors (RF), and

    antibodies to citrullinated peptides (ACPA).

    These data suggest that the disease involves abnormal B cell - T cell

    interaction, with presentation of antigens by B cells to T cells via HLA-DR eliciting T

    cell help and consequent production of RF and ACPA. Inflammation is then driven

    either by B cell or T cell products stimulating release of TNF and other cytokines. The

    process may be facilitated by an effect of smoking on citrullination but the stochastic(random) epidemiology suggests that the rate limiting step in genesis of disease in

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    predisposed individuals may be an inherent stochastic process within the immune

    response such as immunoglobulin or T cell receptor gene recombination and

    mutation. (See entry underautoimmunity for general mechanisms).

    If TNF release is stimulated by B cell products in the form of RF or ACPA -

    containing immune complexes, through activation of immunoglobulin Fc receptors,

    then RA can be seen as a form of Type III hypersensitivity. If TNF release is

    stimulated by T cell products such as interleukin-17 it might be considered closer to

    type IV hypersensitivity although this terminology may be getting somewhat dated

    and unhelpful. The debate on the relative roles of immune complexes and T cell

    products in inflammation in RA has continued for 30 years. There is little doubt that

    both B and T cells are essential to the disease. However, there is good evidence for

    neither cell being necessary at the site of inflammation. This tends to favour immune

    complexes (based on antibody synthesised elsewhere) as the initiators, even if not

    the sole perpetuators of inflammation. Moreover, work by Thurlings and others inPaul-Peter Tak's group and also by Arthur Kavanagh's group suggest that if any

    immune cells are relevant locally they are the plasma cells, which derive from B cells

    and produce in bulk the antibodies selected at the B cell stage

    Although TNF appears to be the dominant, other cytokines (chemical

    mediators) are likely to be involved in inflammation in RA. Blockade of TNF does not

    benefit all patients or all tissues (lung disease and nodules may get worse). Blockade

    of IL-1, IL-15 and IL-6 also have beneficial effects and IL-17 may be important.

    Constitutional symptoms such as fever, malaise, loss of appetite and weight loss are

    also caused by cytokines released in to the blood stream.

    As with most autoimmune diseases, it is important to distinguish between the

    cause(s) that trigger the process, and those that may permit it to persist and

    progress.

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    Possible infectious triggers

    It has long been suspected that certain infections could be triggers for this

    disease. The "mistaken identity" theory suggests that an infection triggers an immune

    response, leaving behind antibodies that should be specific to that organism. The

    antibodies are not sufficiently specific, though, and set off an immune attack against

    part of the host. Because the normal host molecule "looks like" a molecule on the

    offending organism that triggered the initial immune reaction - this phenomenon is

    called molecular mimicry. Some infectious organisms suspected of triggering

    rheumatoid arthritis include Mycoplasma, Erysipelothrix, parvovirus B19 and rubella,

    but these associations have never been supported in epidemiological studies. Nor

    has convincing evidence been presented for other types of triggers such as food

    allergies.

    Epidemiological studies have confirmed a potential association between RAand two herpesvirus infections: Epstein-Barr virus (EBV) and Human Herpes Virus 6

    (HHV-6). Individuals with RA are more likely to exhibit an abnormal immune

    response to the Epstein-Barr virus. The allele HLA-DRB1*0404 is associated with low

    frequencies ofT cells specific for the EBV glycoprotein 110 and predisposes one to

    develop RA.

    Psychological factors

    There is no evidence that physical and emotional effects or stress could be a

    trigger for the disease. The many negative findings suggest that either the triggervaries, or that it might in fact be a chance event inherent with the immune response,

    as suggested by Edwards et al.

    Continued abnormal immune response

    The factors that allow an abnormal immune response, once initiated, to

    become permanent and chronic, are becoming more clearly understood. The genetic

    association with HLA-DR4, as well as the newly discovered associations with the

    gene PTPN22 and with two additional genes , all implicate altered thresholds in

    regulation of the adaptive immune response. It has also become clear from recent

    studies that these genetic factors may interact with the most clearly defined

    environmental risk factor for rheumatoid arthritis, namely cigarette smoking.Other

    environmental factors also appear to modulate the risk of acquiring RA, and

    hormonal factors in the individual may explain some features of the disease, such as

    the higher occurrence in women, the not-infrequent onset after child-birth, and the

    (slight) modulation of disease risk by hormonal medications. Exactly how altered

    regulatory thresholds allow the triggering of a specific autoimmune response remains

    uncertain. However, one possibility is that negative feedback mechanisms that

    normally maintain tolerance of self are overtaken by aberrant positive feedback

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    mechanisms for certain antigens such as IgG Fc (bound by RF) and citrullinated

    fibrinogen (bound by ACPA) (see entry on autoimmunity).

    Once the abnormal immune response has become established (which may

    take several years before any symptoms occur), plasma cells derived from B

    lymphocytes produce rheumatoid factors and ACPA of the IgG and IgM classes in

    large quantities. These are not deposited in the way that they are in systemic lupus.

    Rather, they appear to activate macrophages through Fc receptor and perhaps

    complement binding. This can contribute to inflammation of the synovium, in terms of

    edema, vasodilation and infiltration by activated T-cells (mainly CD4 in nodular

    aggregates and CD8 in diffuse infiltrates). Synovial macrophages and dendritic cells

    further function as antigen presenting cells by expressing MHC class II molecules,

    leading to an established local immune reaction in the tissue.

    The disease progresses in concert with formation of granulation tissue at theedges of the synovial lining (pannus) with extensive angiogenesis and production of

    enzymes that cause tissue damage. Modern pharmacological treatments of RA

    target these mediators. Once the inflammatory reaction is established, the synovium

    thickens, the cartilage and the underlying bone begin to disintegrate and evidence of

    joint destruction accrues.

    7. Treatement

    There is no known cure for rheumatoid arthritis. To date, the goal of treatment

    in rheumatoid arthritis is to reduce joint inflammation and pain, maximize joint

    function, and prevent joint destruction and deformity. Early medical intervention has

    been shown to be important in improving outcomes. Aggressive management can

    improve function, stop damage to joints as monitored on X-rays, and prevent work

    disability. Optimal treatment for the disease involves a combination of medications,

    rest, joint-strengthening exercises, joint protection, and patient (and family)

    education. Treatment is customized according to many factors such as disease

    activity, types of joints involved, general health, age, and patient occupation.

    Treatment of rheumatoid arthritis is a team effort involving at its core:

    The patient

    The specialist (rheumatologist)

    The nurse practitioner

    Other members of the rheumatology team include the:

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    Chiropodist

    GP (general practitioner)

    Occupational therapist

    Orthopaedic surgeon

    Orthotist

    Pharmacist

    Physical therapist (UK: physiotherapist)

    Podiatrist

    Primary care nurse

    Although not automatically part of every rheumatology team, patients may also

    benefit from counseling services.

    Medications

    Two classes of medications are used in treating rheumatoid arthritis: fast-

    acting "first-line drugs" and slow-acting "second-line drugs" (also referred to as

    disease-modifying antirheumatic drugs or DMARDs). The first-line drugs, such as

    aspirin and cortisone (corticosteroids), are used to reduce pain and inflammation.

    The slow-acting second-line drugs, such as gold, methotrexate, and

    hydroxychloroquine (Plaquenil), promote disease remission and prevent progressive

    joint destruction, but they are not anti-inflammatory agents.

    The degree of destructiveness of rheumatoid arthritis varies among affected

    individuals. Those with uncommon, less destructive forms of the disease or disease

    that has quieted after years of activity ("burned out" rheumatoid arthritis) can be

    managed with rest and pain and anti-inflammatory medications alone. In general,

    however, function is improved and disability and joint destruction are minimized whenthe condition is treated earlier with second-line drugs (disease-modifying

    antirheumatic drugs), even within months of the diagnosis. Most people require more

    aggressive second-line drugs, such as methotrexate, in addition to anti-inflammatory

    agents. Sometimes these second-line drugs are used in combination. In some cases

    with severe joint deformity, surgery may be necessary.

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    "First-line" medications

    Acetylsalicylate (aspirin), naproxen (Naprosyn), ibuprofen (Advil, Medipren,

    Motrin), and etodolac (Lodine) are examples of nonsteroidal anti-inflammatory drugs

    (NSAIDs). NSAIDs are medications that can reduce tissue inflammation, pain, and

    swelling. NSAIDs are not cortisone. Aspirin, in doses higher than those used in

    treating headaches and fever, is an effective anti-inflammatory medication for

    rheumatoid arthritis. Aspirin has been used for joint problems since the ancient

    Egyptian era. The newer NSAIDs are just as effective as aspirin in reducing

    inflammation and pain and require fewer dosages per day. Patients' responses to

    different NSAID medications vary. Therefore, it is not unusual for a doctor to try

    several NSAID drugs in order to identify the most effective agent with the fewest sideeffects. The most common side effects of aspirin and other NSAIDs include stomach

    upset, abdominal pain, ulcers, and even gastrointestinal bleeding. In order to reduce

    gastrointestinal side effects, NSAIDs are usually taken with food. Additional

    medications are frequently recommended to protect the stomach from the ulcer

    effects of NSAIDs. These medications include antacids, sucralfate (Carafate), proton-

    pump inhibitors (Prevacid and others), and misoprostol (Cytotec). Newer NSAIDs

    include selective Cox-2 inhibitors, such as celecoxib (Celebrex), which offer anti-

    inflammatory effects with less risk of stomach irritation and bleeding risk.

    Corticosteroid medications can be given orally or injected directly into tissues

    and joints. They are more potent than NSAIDs in reducing inflammation and in

    restoring joint mobility and function. Corticosteroids are useful for short periods

    during severe flares of disease activity or when the disease is not responding to

    NSAIDs. However, corticosteroids can have serious side effects, especially when

    given in high doses for long periods of time. These side effects include weight gain,

    facial puffiness, thinning of the skin and bone, easy bruising, cataracts, risk of

    infection, muscle wasting, and destruction of large joints, such as the hips.

    Corticosteroids also carry some increased risk of contracting infections. These side

    effects can be partially avoided by gradually tapering the doses of corticosteroids asthe individual achieves improvement in symptoms. Abruptly discontinuing

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    corticosteroids can lead to flares of the disease or other symptoms of corticosteroid

    withdrawal and is discouraged. Thinning of the bones due to osteoporosis may be

    prevented by calcium and vitamin D supplements. For further information on

    corticosteroids, please read the article on prednisone

    "Second-line" or "slow-acting" drugs

    (Disease-modifying anti-rheumatic drugs or DMARDs)

    While "first-line" medications (NSAIDs and corticosteroids) can relieve joint

    inflammation and pain, they do not necessarily prevent joint destruction or deformity.

    Rheumatoid arthritis requires medications other than NSAIDs and corticosteroids to

    stop progressive damage to cartilage, bone, and adjacent soft tissues. The

    medications needed for ideal management of the disease are also referred to as

    disease-modifying antirheumatic drugs or DMARDs. They come in a variety of forms

    and are listed below. These "second-line" or "slow-acting" medicines may take weeksto months to become effective. They are used for long periods of time, even years, at

    varying doses. If maximally effective, DMARDs can promote remission, thereby

    retarding the progression of joint destruction and deformity. Sometimes a number of

    DMARD second-line medications are used together as combination therapy. As with

    the first-line medications, the doctor may need to try different second-line

    medications before treatment is optimal.

    Recent research suggests that patients who respond to a DMARD with control

    of the rheumatoid disease may actually decrease the known risk (small but real) of

    lymphoma (cancer of lymph nodes) that exists from simply having rheumatoid

    arthritis. The various available DMARDs are reviewed next.

    Hydroxychloroquine (Plaquenil) is related to quinine and is also used in the

    treatment of malaria. It is used over long periods for the treatment of rheumatoid

    arthritis. Possible side effects include upset stomach, skin rashes, muscle weakness,

    and vision changes. Even though vision changes are rare, people taking Plaquenil

    should be monitored by an eye doctor (ophthalmologist).

    Sulfasalazine (Azulfidine) is an oral medication traditionally used in thetreatment of mild to moderately severe inflammatory bowel diseases, such as

    ulcerative colitis and Crohn's colitis. Azulfidine is used to treat rheumatoid arthritis in

    combination with anti-inflammatory medications. Azulfidine is generally well tolerated.

    Common side effects include rash and upset stomach. Because Azulfidine is made

    up of sulfa and salicylate compounds, it should be avoided by people with known

    sulfa allergies.

    Methotrexate has gained popularity among doctors as an initial second-line

    drug because of both its effectiveness and relatively infrequent side effects. It also

    has an advantage in dose flexibility (dosages can be adjusted according to needs).Methotrexate is an immune-suppression drug. It can affect the bone marrow and the

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    liver, even rarely causing cirrhosis. All people taking methotrexate require regular

    blood tests to monitor blood counts and liver function.

    Gold salts have been used to treat rheumatoid arthritis throughout most of the

    past century. Gold thioglucose (Solganal) and gold thiomalate (Myochrysine) are

    given by injection, initially on a weekly basis, for months to years. Oral gold,

    auranofin (Ridaura), was introduced in the 1980s. Side effects of gold (oral and

    injectable) include skin rash, mouth sores, kidney damage with leakage of protein in

    the urine, and bone marrow damage with anemia and low white cell count. Those

    receiving gold treatment are regularly monitored with blood and urine tests. Oral gold

    can cause diarrhea. These gold drugs have lost favor because of the availability of

    more effective treatments, and many companies no longer manufacture them.

    D-penicillamine (Depen, Cuprimine) can be helpful in selected cases of

    progressive forms of rheumatoid arthritis. Side effects are similar to those of gold.They include fever, chills, mouth sores, a metallic taste in the mouth, skin rash,

    kidney and bone marrow damage, stomach upset, and easy bruising. People taking

    this medication require routine blood and urine tests. D-penicillamine can rarely

    cause symptoms of other autoimmune diseases and is no longer commonly used for

    the treatment of rheumatoid arthritis.

    Immunosuppressive medicines are powerful medications that suppress the

    body's immune system. A number of immunosuppressive drugs are used to treat

    rheumatoid arthritis. They include methotrexate (Rheumatrex, Trexall) as described

    above, azathioprine (Imuran), cyclophosphamide (Cytoxan), chlorambucil

    (Leukeran), and cyclosporine (Sandimmune). Because of potentially serious side

    effects, immunosuppressive medicines (other than methotrexate) are generally

    reserved for those who have very aggressive disease or those with serious

    complications of rheumatoid inflammation, such as blood vessel inflammation

    (vasculitis). The exception is methotrexate, which is not frequently associated with

    serious side effects and can be carefully monitored with blood testing. Methotrexate

    has become a preferred second-line medication as a result.

    Immunosuppressive medications can depress bone-marrow function andcause anemia, a low white cell count, and low platelet counts. A low white count can

    increase the risk of infections, while a low platelet count can increase the risk of

    bleeding. Methotrexate rarely can lead to liver cirrhosis and allergic reactions in the

    lung. Cyclosporine can cause kidney damage and high blood pressure. Because of

    potentially serious side effects, immunosuppressive medications are used in low

    doses, usually in combination with anti-inflammatory agents.

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    Newer treatments

    Newer "second-line" drugs for the treatment of rheumatoid arthritis include

    leflunomide (Arava) and the "biologic" medications etanercept (Enbrel), infliximab

    (Remicade), anakinra (Kineret), adalimumab (Humira), rituximab (Rituxan), abatacept

    (Orencia), golimumab (Simponi), certolizumab pegol (Cimzia), and tocilizumab

    (Actemra). Each of these medications can increase the risk for infections, and the

    development of any infections should be reported to the health-care professional

    when taking these newer second-line drugs.

    Leflunomide (Arava) is available to relieve the symptoms and halt the

    progression of the disease. It seems to work by blocking the action of an important

    enzyme that has a role in immune activation. Arava can cause liver disease,

    diarrhea, hair loss, and/or rash in some people. It should not be taken just before or

    during pregnancy because of possible birth defects and is generally avoided inwomen who might become pregnant.

    Newer medications that represent a novel approach to the treatment of

    rheumatoid arthritis are products of modern biotechnology. These are referred to as

    the biologic medications or biological response modifiers. In comparison with

    traditional DMARDs, the biologic medications have a much more rapid onset of

    action and can have powerful effects on stopping progressive joint damage. In

    general, their methods of action are also more directed, defined, and targeted.

    Etanercept, infliximab, adalimumab, golimumab, and certolizumab pegol are

    biologic medications that intercept a messenger protein in the joints (tumor necrosis

    factor or TNF) that promotes inflammation of the joints in rheumatoid arthritis. These

    TNF-blockers intercept TNF before it can act on its natural receptor to "switch on" the

    process of inflammation. This effectively blocks the TNF inflammation messenger

    from recruiting the cells of inflammation. Symptoms can be significantly, and often

    rapidly, improved in those using these drugs. Etanercept must be injected

    subcutaneously once or twice a week. Infliximab is given by infusion directly into a

    vein (intravenously). Adalimumab is injected subcutaneously either every other week

    or weekly. Golimumab is injected subcutaneously on a monthly basis. Certolizumabpegol is injected subcutaneously every two to four weeks. Each of these medications

    is being evaluated by doctors in practice to determine what role they may have in

    treating patients in various stages of rheumatoid arthritis. Research has shown that

    biological response modifiers also prevent the progressive joint destruction of

    rheumatoid arthritis. They are currently recommended for use after other second-line

    medications have not been effective. The biological response modifiers (TNF-

    inhibitors) are expensive treatments. They are also frequently used in combination

    with methotrexate and other DMARDs. Furthermore, it should be noted that the TNF-

    blocking biologics all are more effective when combined with methotrexate. These

    medications should be avoided by persons with significant congestive heart failure or

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    demyelinating diseases (such as multiple sclerosis) because they can worsen these

    conditions.

    Anakinra is another biologic treatment that is used to treat moderate to severe

    rheumatoid arthritis. Anakinra works by binding to a cell messenger protein (IL-1, a

    proinflammatory cytokine). Anakinra is injected under the skin daily. Anakinra can be

    used alone or with other DMARDs. The response rate of anakinra does not seem to

    be as high as with other biologic medications.

    Rituximab (rituxan) is an antibody that was first used to treat lymphoma, a

    cancerof the lymph nodes. Rituxan can be effective in treating autoimmune diseases

    like rheumatoid arthritis because it depletes B-cells, which are important cells of

    inflammation and in the production of abnormal antibodies that are common in these

    conditions. Rituxan is now available to treat moderate to severely active rheumatoid

    arthritis in patients who have failed treatment with the TNF-blocking biologics.Preliminary studies have shown that Rituxan was also found to be beneficial in

    treating severe rheumatoid arthritis complicated by blood vessel inflammation

    (vasculitis) and cryoglobulinemia. Rituximab (Rituxan) is an intravenous infusion

    given in two doses, two weeks apart, approximately every six months.

    Abatacept (Orencia) is a biologic medication that blocks T-cell activation.

    Orencia is now available to treat adult patients who have failed treatment with a

    traditional DMARD or TNF-blocking biologic medication. Abatacept (Orencia) is an

    intravenous infusion given monthly.

    Tocilizumab (Actemra) has recently been approved for the treatment of adult

    patients with moderately to severely active rheumatoid arthritis (RA) who have had

    an inadequate response to one or more tumor necrosis factor (TNF) antagonist

    therapies. Tocilizumab (Actemra) is the first approved biologic medication that blocks

    interleukin-6 (IL-6), which is a chemical messenger of the inflammation of rheumatoid

    arthritis. Tocilizumab (Actemra) is an intravenous infusion given monthly.

    While biologic medications are often combined with traditional DMARDs in the

    treatment of rheumatoid arthritis, they are generally not used with other biologicmedications because of the unacceptable risk for serious infections.

    The Prosorba column therapy involves pumping blood drawn from a vein in

    the arm into an apheresis machine, or cell separator. This machine separates the

    liquid part of the blood (the plasma) from the blood cells. The Prosorba column is a

    plastic cylinder about the size of a coffee mug that contains a sand-like substance

    coated with a special material called Protein A. Protein A is unique in that it binds

    unwanted antibodies from the blood that promote the arthritis. The Prosorba column

    works to counter the effect of these harmful antibodies. The Prosorba column is

    indicated to reduce the signs and symptoms of moderate to severe rheumatoid

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    arthritis in adult patients with long-standing disease who have failed or are intolerant

    to disease-modifying antirheumatic drugs (DMARDs). The exact role of this treatment

    is being evaluated by doctors, and it is not commonly used currently.

    Other treatments

    There is no special diet for rheumatoid arthritis. One hundred years ago, it was

    touted that "night-shade" foods, such as tomatoes, would aggravate rheumatoid

    arthritis. This is no longer accepted as true. Fish oil may have anti-inflammatory

    beneficial effects, but so far this has only been shown in laboratory experiments

    studying inflammatory cells. Likewise, the benefits of cartilage preparations remain

    unproven. Symptomatic pain relief can often be achieved with oral acetaminophen

    (Tylenol) or over-the-counter topical preparations, which are rubbed into the skin.

    Antibiotics, in particular the tetracycline drug minocycline (Minocin), have been tried

    for rheumatoid arthritis recently in clinical trials. Early results have demonstrated mildto moderate improvement in the symptoms of arthritis. Minocycline has been shown

    to impede important mediator enzymes of tissue destruction, called

    metalloproteinases, in the laboratory as well as in humans.

    The areas of the body other than the joints that are affected by rheumatoid

    inflammation are treated individually. Sjogren's syndrome (described above, see

    symptoms) can be helped by artificial tears and humidifying rooms of the home or

    office. Medicated eyedrops, cortisporine ophthalmic drops (Restasis), are also

    available to help the dry eyes in those affected. Regular eye checkups and early

    antibiotic treatment for infection of the eyes are important. Inflammation of the

    tendons (tendinitis), bursae (bursitis), and rheumatoid nodules can be injected with

    cortisone. Inflammation of the lining of the heart and/or lungs may require high doses

    of oral cortisone.

    Proper, regular exercise is important in maintaining joint mobility and in

    strengthening the muscles around the joints. Swimming is particularly helpful

    because it allows exercise with minimal stress on the joints. Physical and

    occupational therapists are trained to provide specific exercise instructions and can

    offer splinting supports. For example, wrist and finger splints can be helpful inreducing inflammation and maintaining joint alignment. Devices such as canes, toilet

    seat raisers, and jar grippers can assist in the activities of daily living. Heat and cold

    applications are modalities that can ease symptoms before and after exercise.

    Surgery may be recommended to restore joint mobility or repair damaged

    joints. Doctors who specialize in joint surgery are orthopedic surgeons. The types of

    joint surgery range from arthroscopy to partial and complete replacement of the joint.

    Arthroscopy is a surgical technique whereby a doctor inserts a tube-like instrument

    into the joint to see and repair abnormal tissues.

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    Total joint replacement is a surgical procedure whereby a destroyed joint is

    replaced with artificial materials. For example, the small joints of the hand can be

    replaced with plastic material. Large joints, such as the hips orknees, are replaced

    with metals.

    Finally, minimizing emotional stress can help improve the overall health in

    people with rheumatoid arthritis. Support and extracurricular groups provide those

    with rheumatoid arthritis time to discuss their problems with others and learn more

    about their illness.

    Future treatments

    Scientists throughout the world are studying many promising areas of new

    treatment approaches for rheumatoid arthritis. These areas include treatments that

    block the action of the special inflammation factors, such as tumor necrosis factor(TNFalpha) and interleukin-1 (IL-1), as described above. Many other drugs are being

    developed that act against certain critical white blood cells involved in rheumatoid

    inflammation. Also, new NSAIDs with mechanisms of action that are different from

    current drugs are on the horizon.

    Better methods of more accurately defining which patients are more likely to

    develop more aggressive disease are becoming available. Recent antibody research

    has found that the presence of citrulline antibodies in the blood (see above, in

    diagnosis) has been associated with a greater tendency toward more destructive

    forms of rheumatoid arthritis.

    Studies involving various types of the connective tissue collagen are in

    progress and show encouraging signs of reducing rheumatoid disease activity.

    Finally, genetic research and engineering is likely to bring forth many new avenues

    for earlier diagnosis and accurate treatment in the near future. Gene profiling, also

    known as gene array analysis, is being identified as a helpful method of defining

    which people will respond to which medications. Studies are under way that are

    using gene array analysis to determine which patients will be at more risk for more

    aggressive disease. This is all occurring because of improvements in technology. Weare at the threshold of tremendous improvements in the way rheumatoid arthritis is

    managed.

    Lifestyle

    When a flare-up occurs the patient should rest as much as possible. Exerting

    very swollen and painful joints frequently results in worsening symptoms.

    Generally, when flare ups are not present, the patient should exercise

    regularly; this will help their general health and mobility. If rheumatoid arthritis hascaused muscles around the joints to become weak, exercise will help strengthen

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    them. Exercises that do not strain the joints are best, such as swimming. A qualified

    physical therapist can teach the patient exercises that improve mobility.

    Applying heat or cold - tense and painful muscles may benefit from the

    application of heat. A 15 minute hot bath or shower may help. Some people find

    that using a hot pack or an electric heating pad (set at lowest setting) helps.

    Pain may be dulled with cold treatment. The numbing effect of cold may also

    decrease muscle spasms. Patients with poor circulation or numbness should not

    use cold treatments. Examples of cold treatment include cold packs, soaking the

    affected joint in cold water, and ice massage. Some people benefit from placing the

    affected joints in warm water for a few minutes, followed by cool water for one

    minute; repeating the cycle for about 30 minutes, ending with a warm water soak.

    Relaxation - finding ways of alleviating mental stress may help control pain.

    Examples include hypnosis, guided imagery, deep breathing and muscle

    relaxation.

    Complementary therapies - these are commonly used by people with

    rheumatoid arthritis. Few studies have been carried out on how effective they are.

    Examples include:

    o Acupuncture

    o Chiropractic

    o Electrotherapy

    o Hydrotherapy

    o Massage

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    o Nutritional supplements - for example, fish oil, glucosamine sulphate

    and chondriotin.

    o Osteopathy

    8. Right price of the prescription

    Prescription medication is an expense that many families cannot afford. If there

    are some persons that dont have an insurance plan that will cover their

    prescriptions and are a low-income family, then they are not alone. Fortunately, there

    are some programs available to assist them with their medications, but finding them

    can be a struggle. Here are a few options that could help this people afford their

    medicines:

    First of all, patients should communicate with their doctor on some aspects:

    if they are without prescription coverage their doctor can truly be their greatest alley

    and can help them in a variety of ways. If their doctor starts them on a new

    prescription drug, there are a series of questions they can ask to make sure they get

    the best deal. Patients should begin by asking their doctor if he has any free

    samples they can have, to try the medication. Explain their insurance situation and

    see if their doctor will offer them the medication for free. If their doctor does not have

    any samples for them to take home, they should ask him if he could call the drugrepresentative from that company to send some samples to them. These drug

    representatives stop in regularly to restock their supply and are happy to get more

    clients under their belt. This can be a win-win situation for all the parties involved.

    If samples are unavailable, they should ask their doctor if they can have a "trial

    prescription," so that they can buy fewer of the tablets at first. This can be a good

    way to find out if a medication will work for them and also to see if they can tolerate

    any nasty side effects. If the drug does not work for them, they will not have invested

    in a month's supply that they will be unable to use. There are also specific questions

    that patients can ask about the medications they are taking. For example, to ask their

    doctor if there is a generic equivalent to the medication they are taking because they

    are exploring less expensive alternatives. If there are no generic equivalents to this

    medication, they can also ask about over-the-counter (OTC) medications.

    Sometimes, there are OTC medications patients can take that will achieve the same

    results as the actual prescription drug. Another question patients can ask is if they

    could buy a double dosage of the medication, in pill form, and split the tablets in half

    for their regular dosage. There are many prescriptions that can be purchased and

    then can easily be halved. This can result in a fifty-percent savings on patients

    medication.

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    Their doctor may also know about specific aid from the drug manufacturer.

    Many prescription companies have programs to give medication to patients who have

    no way to pay for their prescription drugs. Programs vary from manufacturer to

    manufacturer, but all require the doctor to submit the application for the patients.

    Patients should explore this route with their doctor and see what the company

    requirements are and if this type of aid is available for them. Finally, patients should

    check in yearly with their doctor to see if cheaper versions of their medications have

    becomeavailable.

    Another alternative to get cheaper treatment is to try to buy the medications

    online: online stores can offer a lot of savings for their customers, particularly

    Canadian pharmacies where drug prices are much cheaper (savings of up to half on

    many prescriptions). Patients must make sure that they research the company well to

    ensure that the company is not a fake. Examples of things to look for are a toll free

    number, real operators who answer their phone, a physical company address, and asecure website to do their shopping. They will also want to make sure the pharmacy

    is approved by the organization that governs the state/country where the pharmacy is

    located.

    State assistance, can be a real help somtimes: make sure to investigate what

    patients state offers in assisting with the cost of his/her prescription drugs. These

    programs are typically available to the elderly, disabled, and low-income families.

    People can obtain information about these programs through their state's website or

    by calling the office of their state senator or representative.

    Patients having cost problems with their medication, and should not be afraid or

    ashamed to ask their doctor, the drug company, or their pharmacy about assistance

    programs. There are great savings in asking and exploring for cheaper alternatives.

    9. Prognosis

    It isn't possible to predict exactly how rheumatoid arthritis will progress foreach patient. The inflammation in rheumatoid arthritis damages the cartilage and

    sometimes the bone itself. It may also damage any ligaments within the joints.

    Inflammation causes the tough capsules that surround joints to stretch. When

    the swelling goes down the capsule remains stretched and can no longer hold the

    joint in its proper position. As a result the joint becomes unstable and this can lead to

    deformities of the joints. Some damage is done every time the joints are inflamed and

    once joints are damaged they don't heal properly. This is why most treatment aims to

    prevent joint damage by minimizing inflammation as early as possible in the disease.

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    Inflammation can sometimes affect the blood vessels, the lungs and, rarely,

    the membrane around the heart. People with rheumatoid arthritis are also more at

    risk of heart attack and strokes. This seems to be caused by the inflammation and

    the risk is probably reduced by controlling the disease.

    Most people follow a pattern of flare-ups with periods of months or even years

    when there is little inflammation. There's likely to be some damage in a number of

    joints. People whose disease follows this pattern are likely to have some problems

    with their joints and may have to change their activities a little, but overall probably

    won't notice too great an impact on their lives.

    Some people, maybe as many as 1 in 5, always have very mild rheumatoid

    arthritis that causes few problems. People in this group will usually have only minor

    damage to a small number of joints.

    A few people, no more than 1 in 20, will have rheumatoid arthritis that

    becomes progressively worse, often quite quickly. These individuals are likely to

    have severe damage to many of their joints, and are also more likely to have

    inflammation in other parts of the body besides their joints.

    The course of the disease varies greatly. Around 20%-30% will have

    subcutaneous nodules (known as rheumatoid nodules); this is associated with a poor

    prognosis.

    Disability

    Daily living activities are impaired in most individuals.

    After 5 years of disease, approximately 33% of sufferers will not be working.

    After 10 years, approximately half will have substantial functional disability.

    Prognostic factors

    Poor prognostic factors include persistent synovitis, early erosive disease,extra-articular findings (including subcutaneous rheumatoid nodules), positive serum

    RF findings, positive serum anti-CCP autoantibodies, carriership of HLA-DR4

    "Shared Epitope" alleles, family history of RA, poor functional status, socioeconomic

    factors, elevated acute phase response (erythrocyte sedimentation rate [ESR], C-

    reactive protein [CRP]), and increased clinical severity.

    Mortality

    Estimates of the life-shortening effect of RA vary; most sources cite a lifespan

    reduction of 5 to 10 years. According to the UK's National Rheumatoid ArthritisSociety, "Young age at onset, long disease duration, the concurrent presence of

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    other health problems (called co-morbidity), and characteristics of severe RA such

    as poor functional ability or overall health status, a lot of joint damage on x-rays, the

    need for hospitalisation or involvement of organs other than the joints have been

    shown to associate with higher mortality". Positive responses to treatment may

    indicate a better prognosis. A 2005 study by the Mayo Clinic noted that RA sufferers

    suffer a doubled risk of heart disease, independent of other risk factors such as

    diabetes, alcohol abuse, and elevated cholesterol, blood pressure and body mass

    index. The mechanism by which RA causes this increased risk remains unknown; the

    presence of chronic inflammation has been proposed as a contributing factor.

    10. Prevalence of arthritis

    Disability-adjusted life yearfor rheumatoid arthritis per 100,000 inhabitants in 2004.

    no data less than 40 40-50 50-60 60-70 70-80 80-90 90-100

    100-110 110-120 120-130 130-140 more than 140

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    The incidence of RA is in the region of 3 cases per 10,000 population per

    annum. Onset is uncommon under the age of 15 and from then on the incidence

    rises with age until the age of 80. The prevalence rate is 1%, with women affected

    three to five times as often as men. It is 4 times more common in smokers than non-

    smokers. A study in 2010 found that those who drank modest amounts of alcohol

    regularly were four times less likely to get rheumatoid arthritis than those who never

    drank. Some Native American groups have higher prevalence rates (5-6%) and

    people from the Caribbean region have lower prevalence rates. First-degree relatives

    prevalence rate is 2-3% and disease genetic concordance in monozygotic twins is

    approximately 15-20%.

    It is strongly associated with the inherited tissue type Major histocompatibility

    complex (MHC) antigen HLA-DR4 (most specifically DR0401 and 0404) hencefamily history is an important risk factor.

    Rheumatoid arthritis affects women three times more often than men, and it

    can first develop at any age. The risk of first developing the disease (the disease

    incidence) appears to be greatest for women between 40 and 50 years of age, and

    for men somewhat later. RA is a chronic disease, and although rarely, a spontaneous

    remission may occur, the natural course is almost invariably one of persistent

    symptoms, waxing and waning in intensity, and a progressive deterioration of joint

    structures leading to deformations and disability.

    11. Travel tips for people with Rheumatoid arthritis

    Some people with arthritis develop a reluctance to try new things or

    experience activities that their physical limitations might make more of a challenge.

    For example, people with arthritis often become reluctant to travel. With forethought

    and careful planning, people with arthritis can travel too.

    If traveling with arthritis is a concern, it is wise to take short trips at first andhave someone along who could be of assistance if necessary. As short trips are

    accomplished and enjoyed successfully, longer trips can be planned with confidence.

    The short trips allow them to experience traveling and at the same time learn what

    difficulties occur that can be either avoided or planned for.

    Make their needs known

    If a travel agent is utilized when planning more extensive trips, patients should

    be specific about their restrictions and requirements. Do not assume that all will be

    well and all will be understood. They must make their needs known. Ask the travelagent questions that will solve their concerns. Ask about:

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