| 


































































































|
| |
 |
This booklet is for people who have systemic lupus erythematosus,
commonly called SLE or lupus, as well as for their family and
friends and others who want to better understand the disease.
The booklet describes the disease and its symptoms and contains
information about diagnosis and treatment as well as current research
efforts supported by the National Institute of Arthritis and Musculoskeletal
and Skin Diseases (NIAMS) and other components of the National
Institutes of Health (NIH). It also discusses issues such as health
care, pregnancy, and quality of life for people with lupus. If
you have further questions after reading this booklet, you may
wish to discuss them with your doctor.
|
|
Defining Lupus Understanding What Causes
Lupus
Symptoms
of Lupus
Diagnosing
Lupus
Treating
Lupus
Lupus
and Quality of Life
Pregnancy
For Women With Lupus
Current
Research
Hope for the Future
Additional
Resources
|
Defining Lupus
Lupus is a
disorder of the immune system known as an autoimmune disease.
In autoimmune diseases, the body harms its own healthy cells and
tissues. This leads to inflammation and damage to various body
tissues. Lupus can affect many parts of the body, including the
joints, skin, kidneys, heart, lungs, blood vessels, and brain.
Although people with the disease may have many different symptoms,
some of the most common ones include extreme fatigue, painful
or swollen joints (arthritis), unexplained fever, skin rashes,
and kidney problems.
At present,
there is no cure for lupus. However, lupus can be very successfully
treated with appropriate drugs, and most people with the disease
can lead active, healthy lives. Lupus is characterized by periods
of illness, called flares, and periods of wellness, or remission.
Understanding how to prevent flares and how to treat them when
they do occur helps people with lupus maintain better health.
Intense research is underway and scientists funded by the NIH
are continuing to make great strides in understanding the disease,
which may ultimately lead to a cure.
Two of the questions
researchers are studying are who gets lupus and why. We know that
many more women than men have lupus. Lupus is three times more common
in African American women than in Caucasian women and is also more
common in women of Hispanic, Asian, and Native American descent.
In addition, lupus can run in families, but the risk that a child
or a brother or sister of a patient will also have lupus is still
quite low. It is difficult to estimate how many people in the United
States have the disease because its symptoms vary widely and its
onset is often hard to pinpoint.
Although "lupus"
is used as a broad term, there actually are several kinds of lupus:
|
|
Systemic
lupus erythematosus (SLE) is the form of the disease that
most people are referring to when they say "lupus."
The word "systemic" means the disease can affect
many parts of the body. The symptoms of SLE may be mild or
serious. Although SLE usually first affects people between
the ages of 15 and 45 years, it can occur in childhood or
later in life as well. This booklet focuses on SLE.
|
|
|
Discoid
lupus erythematosus refers to a skin disorder in which a red,
raised rash appears on the face, scalp, or elsewhere. The
raised areas may become thick and scaly and may cause scarring.
The rash may last for days or years and may recur. A small
percentage of people with discoid lupus have or develop SLE.
|
|
|
Drug-induced
lupus refers to a form of lupus caused by specific medications.
Symptoms are similar to those of SLE (arthritis, rash, fever,
and chest pain) that typically go away when the drug is stopped.
|
|
|
Neonatal
lupus is a rare form of lupus affecting newborn babies of
women with SLE or certain other immune system disorders. At
birth, the babies have a skin rash, liver abnormalities, or
low blood counts, which entirely go away over several months.
However, babies with neonatal lupus may have a serious heart
defect. Physicians can now identify most at-risk mothers,
allowing for prompt treatment of the infant at or before birth.
Neonatal lupus is very rare, and most infants of mothers with
SLE are entirely healthy. |
Understanding
What Causes Lupus
Lupus is a
complex disease whose cause is unknown. It is likely that there
is no single cause but rather a combination of genetic, environmental,
and possibly hormonal factors that work together to cause the
disease. The exact cause may differ from one person to another.
Scientists are making progress in understanding the processes
leading to lupus, as described here and in the Current Research
section. Research suggests that genetics plays an important role;
however, no specific "lupus gene" has been identified.
Instead, it appears that several genes may increase a person's
susceptibility to the disease.
The fact that
lupus can run in families indicates that its development has a
genetic basis. In addition, studies of identical twins have shown
that lupus is much more likely to affect both members of a pair
of identical twins, who share the exact same set of genes, than
two nonidentical twins or other siblings. However, scientists
think that genes alone cannot account for who gets lupus. Other
factors must also play a role. Some of the factors that scientists
are studying include sunlight, stress, certain drugs, and infectious
agents such as viruses. Even though a virus might trigger the
disease in susceptible individuals, a person cannot "catch"
lupus from someone else.
In lupus,
the body's immune system does not work as it should. A healthy
immune system produces substances called antibodies that help
fight and destroy viruses, bacteria, and other foreign substances
that invade the body. In lupus, the immune system produces antibodies
against the bodys healthy cells and tissues. These antibodies,
called autoantibodies ("auto" means self), contribute
to the inflammation of various parts of the body, causing damage
and altering the function of target organs and tissues. In addition,
some autoantibodies join with substances from the bodys
own cells or tissues to form molecules called immune complexes.
A buildup of these immune complexes in the body also contributes
to inflammation and tissue injury in people with lupus. Researchers
do not yet understand all of the factors that cause inflammation
and tissue damage in lupus, and this is an active area of research.
Symptoms
of Lupus
Each persons
experience with lupus is different, although there are patterns
that permit accurate diagnosis. Symptoms can range from mild to
severe and may come and go over time. Common symptoms of lupus
include painful or swollen joints, unexplained fever, and skin
rashes, along with extreme fatigue. A characteristic skin rash
may appear across the nose and cheeks--the so-called butterfly
or malar rash. Other rashes occur elsewhere on the face and ears,
upper arms, shoulders, chest, and hands.
Other symptoms
of lupus include chest pain, hair loss, sensitivity to the sun,
anemia (a decrease in red blood cells), and pale or purple fingers
and toes from cold and stress. Some people also experience headaches,
dizziness, depression, or seizures. New symptoms may continue
to appear years after the initial diagnosis, and different symptoms
can occur at different times.
| Common
Symptoms of Lupus |
|
|
Painful
or swollen joints and muscle pain |
|
|
Unexplained
fever |
|
|
Red
rashes, most commonly on the face. |
|
|
Chest
pain upon deep breathing |
|
|
Unusual
loss of hair |
|
|
Pale
or purple fingers or toes from cold or stress (Raynaud's phenomenon)
|
|
|
Sensitivity
to the sun |
|
|
Swelling
(edema) in legs or around eyes |
|
|
Swollen
glands |
|
|
Extreme
fatigue |
In some people
with lupus, only one system of the body such as the skin or joints
is affected. Other people experience symptoms in many parts of
their body. Just how seriously a body system is affected also
varies from person to person. Most commonly, joints and muscles
are affected, causing arthritis and muscle pain. Skin rashes are
quite common. The following systems in the body also can be affected
by lupus.
|
|
Kidneys:
Inflammation of the kidneys (nephritis) can impair their ability
to get rid of waste products and other toxins from the body
effectively. Because the kidneys are so important to overall
health, lupus affecting the kidneys generally requires intensive
drug treatment to prevent permanent damage. There is usually
no pain associated with kidney involvement, although some
patients may notice that their ankles swell. Most often the
only indication of kidney disease is an abnormal urine or
blood test.
|
|
|
Lungs:
Some people with lupus develop pleuritis, an inflammation
of the lining of the chest cavity that causes chest pain,
particularly with breathing. Patients with lupus also may
get pneumonia.
|
|
|
Central
nervous system: In some patients, lupus affects the brain
or central nervous system. This can cause headaches, dizziness,
memory disturbances, vision problems, stroke, or changes in
behavior.
|
|
|
Blood
vessels: Blood vessels may become inflamed (vasculitis), affecting
the way blood circulates through the body. The inflammation
may be mild and may not require treatment or may be severe
and require immediate attention.
|
|
|
Blood:
People with lupus may develop anemia, leukopenia (a decreased
number of white blood cells), or a decrease in the number
of platelets (thrombocytopenia). Some people with lupus may
have abnormalities that cause an increased risk for blood
clots.
|
|
|
Heart:
In some people with lupus, inflammation can occur in the heart
itself (myocarditis and endocarditis) or the membrane that
surrounds it (pericarditis), causing chest pains or other
symptoms. Lupus can also increase the risk of atherosclerosis.
|
Diagnosing
Lupus
Diagnosing
lupus can be difficult. It may take months or even years for doctors
to piece together the symptoms to diagnose this complex disease
accurately. Making a correct diagnosis of lupus requires knowledge
and awareness on the part of the doctor and good communication
on the part of the patient. Giving the doctor a complete, accurate
medical history (for example, what health problems you have had
and for how long) is critical to the process of diagnosis. This
information, along with a physical examination and the results
of laboratory tests, helps the doctor consider other diseases
that may mimic lupus, or determine if the patient truly has the
disease. Reaching a diagnosis may take time and occur gradually
as new symptoms appear.
No single
test can determine whether a person has lupus, but several laboratory
tests may help the doctor to make a diagnosis. The most useful
tests identify certain autoantibodies often present in the blood
of people with lupus. For example, the antinuclear antibody (ANA)
test is commonly used to look for autoantibodies that react against
components of the nucleus, or "command center," of the
patients own cells. Most people with lupus test positive
for ANA; however, there are a number of other causes of a positive
ANA besides lupus, including infections, other rheumatic or immune
diseases, and occasionally as a finding in normal healthy adults.
The ANA test simply provides another clue for the doctor to consider
in making a diagnosis. In addition, there are blood tests for
individual types of autoantibodies that are more specific to people
with lupus, although not all people with lupus test positive for
these and not all people with these antibodies have lupus. These
antibodies include anti-DNA, anti-Sm, anti-RNP, anti-Ro (SSA),
and anti-La (SSB). The doctor may use these antibody tests to
help make a diagnosis of lupus.
Some tests
are used less frequently but may be helpful if the cause of a
persons symptoms remains unclear. The doctor may order a
biopsy of the skin or kidneys if those body systems are affected.
Some doctors may order a syphilis test or a test for anticardiolipin
antibody. A positive test does not mean that a patient has syphilis;
however, the presence of this antibody may increase the risk of
blood clotting and can increase the risk of miscarriages in pregnant
women with lupus. Again, all these tests merely serve as tools
to give the doctor clues and information in making a diagnosis.
The doctor will look at the entire picture--medical history, symptoms,
and test results--to determine if a person has lupus.
Other laboratory
tests are used to monitor the progress of the disease once it
has been diagnosed. A complete blood count, urinalysis, blood
chemistries, and erythrocyte sedimentation rate (ESR) test can
provide valuable information. Another common test measures the
blood level of a group of substances called complement. People
with lupus often have increased ESRs and low complement levels,
especially during flares of the disease.
| Diagnostic
Tools for Lupus |
Medical history
Complete
physical examination
Laboratory tests:
|
|
|
Complete
blood count |
|
|
Erythrocyte
sedimentation rate (ESR) |
|
|
Urinalysis
|
|
|
Blood
chemistries
|
|
|
Complement
levels |
|
|
Antinuclear
antibody test (ANA) |
|
|
Other
autoantibody tests (anti-DNA, anti-Sm, anti-RNP, anti-Ro [SSA],
anti- La [SSB]) |
|
|
Syphilis
test or anticardiolipin antibody
|
Skin
or kidney biopsy
|
Treating
Lupus
Diagnosing
and treating lupus is often a team effort between the patient
and several types of health care professionals. A person with
lupus can go to his or her family doctor or internist, or can
visit a rheumatologist. A rheumatologist is a doctor who specializes
in rheumatic diseases (arthritis and other diseases of the joints,
bones, and muscles). Clinical immunologists (doctors specializing
in immune system disorders) may also treat people with lupus.
As treatment progresses, other professionals often help. These
may include nurses, psychologists, social workers, and specialists
such as nephrologists (doctors who treat kidney disease), hematologists
(doctors specializing in blood disorders), dermatologists (doctors
who treat skin disease), and neurologists (doctors specializing
in disorders of the nervous system).
The range
and effectiveness of treatments for lupus have increased dramatically,
giving doctors more choices in how to treat the disease. It is
important for the patient to work closely with the doctor and
take an active role in treatment. Once lupus has been diagnosed,
the doctor will develop a treatment plan based on the patients
age, sex, health, symptoms, and lifestyle. Treatment plans are
tailored to the individuals needs and may change over time.
In developing a treatment plan, the doctor has several goals:
to prevent flares, to treat them when they do occur, and to minimize
organ damage and complications. The doctor and patient should
reevaluate the plan regularly to ensure that it is as effective
as possible.
Several types
of drugs are used to treat lupus. The treatment the doctor chooses
is based on the patients individual symptoms and needs.
For people with joint or chest pain or fever, drugs that decrease
inflammation, referred to as nonsteroidal anti-inflammatory drugs
(NSAIDs), are often used. While some NSAIDs are available over
the counter, a doctors prescription is necessary for others.
NSAIDs may be used alone or in combination with other types of
drugs to control pain, swelling, and fever. Even though some NSAIDs
may be purchased without a prescription, it is important that
they be taken under a doctors direction. Common side effects
of NSAIDs, including those available over the counter, can include
stomach upset, heartburn, diarrhea, and fluid retention. Some
patients with lupus also develop liver and kidney inflammation
while taking NSAIDs, making it especially important to stay in
close contact with the doctor while taking these medications.
A new class
of anti-inflammatory drugs called COX-2 inhibitors (celecoxib
[Celebrex]; rofecoxib [Vioxx]; mobic [Meloxicam]) have all of
the same effects as NSAIDs on pain and inflammation but have a
much lower risk of significant gastrointestinal side effects.
These agents have not been extensively studied in patients with
lupus and have not been approved by the Food and Drug Administration
for use specifically in lupus. However, they might provide benefits
similar to NSAIDs.
|
NSAIDs
Used To Treat Lupus*
|
|
|
Generic
Name
|
Brand
Name |
Ibuprofen
Naproxen
Sulindac
Diclofenac
Piroxicam
Ketoprofen
Diflunisal
Nabumetone
Etodolac
Oxaprozin Indomethacin
|
Motrin,
Advil
Naprosyn, Aleve
Clinoril
Voltaren
Feldene
Orudis
Dolobid
Relafen
Lodine
Daypro
Indocin |
| *
Brand names included in this publication are provided as examples
only and their inclusion does not mean that these products are
endorsed by the National Institutes of Health or any other Government
agency. Also, if a particular brand name is not mentioned, this
does not mean or imply that the product is unsatisfactory. |
Antimalarials
are another type of drug commonly used to treat lupus. These drugs
were originally used to treat malaria, but doctors have found
that they also are useful for lupus. Exactly how antimalarials
work in lupus is unclear, but scientists think that they may work
by suppressing parts of the immune response. A common antimalarial
used to treat lupus is hydroxychloroquine (Plaquenil). It may
be used alone or in combination with other drugs and generally
is used to treat fatigue, joint pain, skin rashes, and inflammation
of the lungs.
Clinical studies
have found that continuous treatment with antimalarials may prevent
flares from recurring. Side effects of antimalarials can include
stomach upset and, extremely rarely, damage to the retina of the
eye.
The mainstay
of lupus treatment involves the use of corticosteroid hormones,
such as prednisone (Deltasone), hydrocortisone, methylprednisolone
(Medrol), and dexamethasone (Decadron, Hexadrol). Corticosteroids
are related to cortisol, which is a natural anti-inflammatory
hormone. They work by rapidly suppressing inflammation. Corticosteroids
can be given by mouth, in creams applied to the skin, or by injection.
Because they are potent drugs, the doctor will seek the lowest
dose with the greatest benefit. Short-term side effects of corticosteroids
include swelling, increased appetite, weight gain, and emotional
ups and downs. These side effects generally stop when the drug
is stopped. It can be dangerous to stop taking corticosteroids
suddenly, so it is very important that the doctor and patient
work together in changing the corticosteroid dose. Sometimes doctors
give very large amounts of corticosteroid by vein over a brief
period of time (days) ("bolus" or "pulse"
therapy). With this treatment, the typical side effects are less
likely and slow withdrawal is unnecessary.
Long-term
side effects of corticosteroids can include stretch marks on the
skin, excessive hair growth, weakened or damaged bones (osteoporosis
and osteonecrosis), high blood pressure, damage to the arteries,
high blood sugar, infections, and cataracts. Typically, the higher
the dose of prolonged corticosteroids, the more severe the side
effects. Also, the longer they are taken, the greater the risk
of side effects. Researchers are working to develop alternative
strategies to limit or offset the use of corticosteroids. For
example, corticosteroids may be used in combination with other,
less potent drugs, or the doctor may try to slowly decrease the
dose once the disease is under control. People with lupus who
are using corticosteroids should talk to their doctors about taking
supplemental calcium and vitamin D or other drugs to reduce the
risk of osteoporosis (weakened, fragile bones).
In special
circumstances, patients may require stronger drugs to combat lupus
symptoms. In some patients, methotrexate (Folex, Mexate, Rheumatrex)
may be used to help control the disease. Patients who have many
body systems affected by the disease may receive intravenous gamma
globulin (Gammagard S/D), a blood protein that increases immunity
and helps fight infection. Gamma globulin also may be used to
control acute bleeding in patients with thrombocytopenia or to
prepare a person with lupus for surgery.
For patients
whose kidneys or central nervous systems are affected by lupus,
a type of drug called an immunosuppressive may be used. Immunosuppressives,
such as azathioprine (Imuran) and cyclophosphamide (Cytoxan),
restrain the overactive immune system by blocking the production
of some immune cells and curbing the action of others. These drugs
may be given by mouth or by infusion (dripping the drug into the
vein through a small tube). Side effects may include nausea, vomiting,
hair loss, bladder problems, decreased fertility, and increased
risk of cancer and infection. The risk for side effects increases
with the length of treatment. As with other treatments for lupus,
there is a risk of relapse after the immunosuppressives have been
stopped.
Working closely
with the doctor helps ensure that treatments for lupus are as
successful as possible. Because some treatments may cause harmful
side effects, it is important to report any new symptoms to the
doctor promptly. It is also important not to stop or change treatments
without talking to the doctor first.
Because of
the nature and cost of the medications used to treat lupus, their
potentially serious side effects, and the lack of a cure, many
patients seek other ways of treating the disease. Some alternative
approaches that have been suggested include special diets, nutritional
supplements, fish oils, ointments and creams, chiropractic treatment,
and homeopathy. Although these methods may not be harmful in and
of themselves, and they may be associated with symptomatic or
psychosocial benefit, no research to date shows that they affect
the disease process or prevent organ damage. Some alternative
or complementary approaches may help the patient cope or reduce
some of the stress associated with living with a chronic illness.
If the doctor feels the approach has value and will not be harmful,
it can be incorporated into the patients treatment plan.
However, it is important not to neglect regular health care or
treatment of serious symptoms. An open dialogue between the patient
and the physician about the relative values of complementary and
alternative and more traditional therapy is essential in permitting
the patient to make an informed choice about treatment options.
Lupus
and Quality of Life
Despite the
symptoms of lupus and the potential side effects of treatment,
people with lupus can maintain a high quality of life overall.
One key to managing lupus is to understand the disease and its
impact. Learning to recognize the warning signs of a flare can
help the patient take steps to ward it off or reduce its intensity.
Many people with lupus experience increased fatigue, pain, a rash,
fever, abdominal discomfort, headache, or dizziness just before
a flare. Developing strategies to prevent flares can also be helpful,
such as learning to recognize your warning signals and maintaining
good communication with your doctor.
It is also
important for people with lupus to receive regular health care,
instead of seeking help only when symptoms worsen. Having a medical
exam and laboratory work on a regular basis allows the doctor
to note any changes and may help predict flares. The treatment
plan, which is tailored to the individual's specific needs and
circumstances, can be adjusted accordingly. If new symptoms are
identified early, treatments may be more effective. Other concerns
also can be addressed at regular checkups. The doctor can provide
guidance about such issues as the use of sunscreens, stress reduction,
and the importance of structured exercise and rest, as well as
birth control and family planning. Because people with lupus can
be more susceptible to infections, the doctor may recommend yearly
influenza vaccinations or pneumococcal vaccination for some patients.
| Warning
Signs of a Flare |
|
|
Increased
fatigue |
|
|
Pain |
|
|
Rash
|
|
|
Fever
|
|
|
Abdominal
discomfort |
|
|
Headache
|
|
|
Dizziness
|
|
Preventing
a Flare
|
|
|
Learn
to recognize your warning signals |
|
|
Maintain
good communication with your doctor |
People with
lupus should receive regular preventive health care, such as gynecological
and breast examinations. Regular dental care will help avoid potentially
dangerous infections. If a person is taking corticosteroids or
antimalarial medications, a yearly eye exam should be done to
screen for and treat eye problems.
Staying healthy
requires extra effort and care for people with lupus, so it becomes
especially important to develop strategies for maintaining wellness.
Wellness involves close attention to the body, mind, and spirit.
One of the primary goals of wellness for people with lupus is
coping with the stress of having a chronic disorder. Effective
stress management varies from person to person. Some approaches
that may help include exercise, relaxation techniques such as
meditation, and setting priorities for spending time and energy.
Developing
and maintaining a good support system is also important. A support
system may include family, friends, medical professionals, community
organizations, and organized support groups. Participating in
a support group can provide emotional help, boost self-esteem
and morale, and help develop or improve coping skills. (For more
information on support groups, see the Additional Resources section).
Learning more
about lupus may also help. Studies have shown that patients who
are well informed and participate actively in their own care experience
less pain, make fewer visits to the doctor, build self-confidence,
and remain more active.
| Tips
for Working With Your Doctor |
|
|
Seek
a health care provider who will listen to and address your
concerns. |
|
|
Provide
complete, accurate medical information. |
|
|
Make
a list of your questions and concerns in advance. |
|
|
Be
honest and share your point of view with the health care provider.
|
|
|
Ask
for clarification or further explanation if you need it. |
|
|
Talk
to other members of the health care team, such as nurses,
therapists, or pharmacists. |
|
|
Do
not hesitate to discuss sensitive subjects (for example, birth
control, intimacy) with your doctor. |
|
|
Discuss
any treatment changes with your doctor before making them.
|
Pregnancy
For Women With Lupus
Although a
lupus pregnancy is considered high risk, most women with lupus
carry their babies safely to the end of their pregnancy. Experts
disagree on the exact numbers, but 20 to 25 percent of lupus pregnancies
end in miscarriage, compared to 10 to 15 percent of pregnancies
in women without the disease. Pregnancy counseling and planning
before pregnancy are important. Ideally, a woman should have no
signs or symptoms of lupus and be taking no medications for at
least 6 months before she becomes pregnant.
Some women
may experience a mild to moderate flare during or after their
pregnancy; others do not. Pregnant women with lupus, especially
those taking corticosteroids, also are more likely to develop
high blood pressure, diabetes, hyperglycemia (high blood sugar),
and kidney complications, so regular care and good nutrition during
pregnancy are essential. It is also advisable to have access to
a neonatal (newborn) intensive care unit at the time of delivery
in case the baby requires special medical attention. About 25
percent (one in four) of babies of women with lupus are born prematurely,
but do not suffer from birth defects.
Current
Research
Lupus is the
focus of intense research as scientists try to determine what
causes the disease and how it can best be treated. Some of the
questions they are working to answer include: Exactly who gets
lupus, and why? Why are women more likely than men to have the
disease? Why are there more cases of lupus in some racial and
ethnic groups? What goes wrong in the immune system, and why?
How can we correct the way the immune system functions once something
goes wrong? What treatment approaches will work best to lessen
or cure lupus symptoms?
To help answer
these questions, scientists are developing new and better ways
to study the disease. They are doing laboratory studies that compare
various aspects of the immune systems of people with lupus with
those of other people both with and without lupus. They also use
mice with disorders resembling lupus to better understand the
abnormalities of the immune system that occur in lupus and to
identify possible new therapies.
The National
Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS),
a component of the National Institutes of Health (NIH), has a
major program of lupus research in its intramural program in Bethesda,
Maryland, and funds many individual researchers across the United
States who are studying lupus. To help scientists gain new knowledge,
the NIAMS also has established Specialized Centers of Research
devoted specifically to lupus research. In addition, the NIAMS
is funding several lupus registries that will gather medical information
as well as blood and tissue samples from patients and their relatives.
This will give researchers across the country access to information
and materials they can use to help identify genes that determine
susceptibility to the disease.
Identifying
genes that play a role in the development of lupus is an active
area of research. For example, researchers suspect a genetic defect
in a cellular process called apoptosis, or "programmed cell
death," in people with lupus. Apoptosis is similar to the
process that causes leaves to turn color in autumn and fall from
trees; it allows the body to eliminate cells that have fulfilled
their function and typically need to be replaced. If there is
a problem in the apoptosis process, harmful cells may stay around
and do damage to the bodys own tissues. For example, in
a mutant mouse strain that develops a lupus-like illness, one
of the genes that controls apoptosis is defective. When it is
replaced by a normal gene, the mice no longer develop signs of
the disease. Scientists are studying what role genes involved
in apoptosis may play in human disease development.
Studying genes
for complement, a series of proteins in the blood that play an
important part in the immune system, is another active area of
lupus research. Complement acts as a backup for antibodies, helping
them destroy foreign substances that invade the body. If there
is a decrease in complement, the body is less able to fight or
destroy foreign substances. If these substances are not removed
from the body, the immune system may become overactive and begin
to make autoantibodies.
Recent large
studies of families with lupus have identified a number of genetic
regions that appear to confer risk of SLE. Although the specific
genes and their function remain unknown, intensive work in delineating
the entire human genome offers promise that these genes will be
identified in the near future. This should provide knowledge of
the fundamental nature of the risk factors that can lead to lupus
and new insights into how these risks can be modified.
It is thought
that autoimmune diseases, such as lupus, occur when a genetically
susceptible individual encounters an unknown environmental agent
or trigger. In this circumstance, an abnormal immune response
can be initiated that leads to the signs and symptoms of lupus.
Research has focused on both the genetic susceptibility and the
environmental trigger. Although the environmental trigger remains
unknown, microbial agents such as Epstein-Barr virus and others
have been considered. Researchers also are studying other factors
that may affect a persons susceptibility to lupus. For example,
because lupus is more common in women than in men, some researchers
are investigating the role of hormones and other male-female differences
in the development and course of the disease.
A current
study funded by the NIH is focusing on the safety and effectiveness
of oral contraceptives (birth-control pills) and hormone replacement
therapy in women with lupus. Doctors have worried about the wisdom
of prescribing oral contraceptives or estrogen replacement therapy
for women with lupus because of a widely held view that estrogens
can make the disease worse. However, recent limited data suggest
these drugs may be safe for some women with lupus. Researchers
hope this study will yield options for safe, effective methods
of birth control for young women with lupus and enable postmenopausal
women with lupus to benefit from estrogen replacement therapy.
| Promising
Areas of Research |
|
|
Identifying
lupus susceptibility genes |
|
|
Searching
for environmental agents that cause lupus |
|
|
Developing
drugs or biologic agents that cure lupus |
Researchers
are also focusing on finding better treatments for lupus. A primary
goal of this research is to develop treatments that can effectively
minimize the use of corticosteroids. Scientists are trying to
identify combination therapies that may be more effective than
single-treatment approaches. Researchers are also interested in
using male hormones, called androgens, as a possible treatment
for the disease. Another goal is to improve the treatment and
management of lupus in the kidneys and central nervous system.
For example, a 20-year study supported by the NIAMS and the NIH
found that combining cyclophosphamide with prednisone helped delay
or prevent kidney failure, a serious complication of lupus.
On the basis
of new information about the disease process, scientists are using
novel "biologic agents" to selectively block parts of
the immune system. Development and testing of these new drugs,
which are based on compounds that occur naturally in the body,
comprise an exciting and promising new area of lupus research.
The hope is that these treatments not only will be effective,
but also will have fewer side effects. Other treatment options
currently being explored include reconstructing the immune system
by bone marrow transplantation. In the future, gene therapy also
may play an important role in lupus treatment.
Hope
for the Future
With research
advances and a better understanding of lupus, the prognosis for
people with lupus today is far brighter than it was even 20 years
ago. It is possible to have lupus and remain active and involved
with life, family, and work. As current research efforts unfold,
there is continued hope for new treatments; improvements in quality
of life; and, ultimately, a way to prevent or cure the disease.
The research efforts of today may yield the answers of tomorrow,
as scientists continue to unravel the mysteries of lupus.
Additional
Resources
National
Institute of Arthritis and Musculoskeletal and Skin Diseases Information
Clearinghouse
NIAMS/National Institutes of Health
1 AMS Circle
Bethesda, MD 20892-3675
Phone: (301) 495-4484 or (877) 22-NIAMS (toll free)
TTY: (301) 565-2966
Fax: (301) 718-6366
World Wide Web address: http://www.niams.nih.gov/
The National
Institute of Arthritis and Musculoskeletal and Skin Diseases Information
Clearinghouse is a public service sponsored by the NIAMS that
provides health information and information sources. The clearinghouse
provides information on lupus. Fact sheets, additional information,
and research updates can also be found on the NIAMS Web site at
http://www.niams.nih.gov/.
Association
of Rheumatology Health Professionals, American College of Rheumatology
1800 Century Place, Suite 250
Atlanta, GA 30345
Phone: (404) 633-3777
Fax: (404) 633-1870
World Wide Web address: http://www.rheumatology.org/
The American
College of Rheumatology (ACR) is an organization of doctors and
associated health professionals who specialize in arthritis and
related diseases of the bones, joints, and muscles. The Association
of Rheumatology Health Professionals, a division of ACR, aims
to enhance the knowledge and skills of rheumatology health professionals
and to promote their involvement in rheumatology research, education,
and quality patient care. The association also works to advance
and promote basic and continuing education in rheumatology for
health professionals who provide care to people with rheumatic
diseases.
Lupus Foundation
of America, Inc.
2000 L Street, N.W., Suite 710
Washington, DC 20036
Phone: 202-349-1155
Toll-Free: (800)558-0121, or your local chapter, listed in
the telephone directory
Fax: 202-349-1156
E-mail: lupusinfo@lupus.org
Web address: http://www.lupus.org/
This is the
main voluntary organization devoted to lupus. The LFA assists
local chapters in providing services to people with lupus, works
to educate the public about lupus, and supports lupus research.
Through a network of more than 500 branches and support groups,
the chapters provide education through information and referral
services, health fairs, newsletters, publications, and seminars.
Chapters provide support to people with lupus, their families,
and friends through support group meetings, hospital visits, and
telephone help lines.
SLE Foundation,
Inc.
149 Madison Avenue, Suite 205
New York, NY 10016
(212) 685-4118
World Wide Web address: http://www.lupusny.org/
The foundation
supports and encourages medical research to find the cause and
cure of lupus and improve its diagnosis and treatment. It also
provides a wide variety of services to help patients with lupus
and their families. In addition, this voluntary organization conducts
a broad-based public education program to raise awareness of lupus
and increase understanding of this serious, chronic, autoimmune
disease.
Arthritis
Foundation
1330 West Peachtree Street
Atlanta, GA 30309
Phone: (404) 872-7100
Toll-Free: (800) 283-7800, or call your local chapter (listed
in the telephone directory)
World Wide Web address: http://www.arthritis.org/
The Arthritis
Foundation is the major voluntary organization devoted to supporting
arthritis research and providing educational and other services
to individuals with arthritis. It publishes free pamphlets and
a magazine for members on all types of arthritis. It also provides
up-to-date information on research and treatment, nutrition, alternative
therapies, and self-management strategies. Chapters nationwide
offer exercise programs, classes, support groups, physician referral
services, and free literature. For more information, call your
local chapter, listed in the white pages of the phone book, or
contact the Arthritis Foundation at the above address.
Alliance
for Lupus Research, Inc.
1270 Avenue of the Americas, Suite 609
New York, NY 10020
Phone: (212) 218-2840
The Alliance
for Lupus Research, Inc. (ALR), is a nonprofit organization devoted
exclusively to the support of promising research for the prevention,
treatment, and cure of lupus. Through accelerated, focused, goal-oriented
research programs, the ALR aims to promote basic and clinical
sciences to achieve major advances leading to a better understanding
of the cause of lupus.
Acknowledgments
The NIAMS
gratefully acknowledges the assistance of Patricia A. Fraser,
M.D., Brigham and Womens Hospital, Boston, Massachusetts;
John H. Klippel, M.D., Susana Serrate-Sztein, M.D., and Peter
F. Lipsky, M.D., NIAMS, NIH; Michael D. Lockshin, M.D., Barbara
Volcker Center for Women and Rheumatic Disease, Hospital for Special
Surgery, New York, New York; and Rosalind Ramsey-Goldman, M.D.,
Dr.P.H., Northwestern University Medical School, Chicago, Illinois,
in the preparation and review of this publication. Special thanks
also go to the many patients who reviewed this publication and
provided valuable input. This booklet was written by Debbie Novak
of Johnson, Bassin, and Shaw, Inc.
About
NIAMS and Its Clearinghouse:
The NIAMS,
a part of the National Institutes of Health (NIH), leads the Federal
medical research effort in arthritis and musculoskeletal and skin
diseases. The NIAMS supports research and research training throughout
the United States, as well as on the NIH campus in Bethesda, MD,
and disseminates health and research information. The National
Institute of Arthritis and Musculoskeletal and Skin Diseases Information
Clearinghouse is a public service sponsored by the NIAMS that
provides health information and information sources. Additional
information and research updates can be found on the NIAMS Web
site at http://www.niams.nih.gov/.
This is a
publication of the
National Institutes of Health
National Institute of Arthritis and Musculoskeletal
and Skin Diseases (NIAMS)
This booklet
is not copyrighted. Readers are encouraged to duplicate and distribute
as many copies as needed.
Additional
copies of this booklet are available from the
National Institute of Arthritis and Musculoskeletal
and Skin Diseases Information Clearinghouse
NIAMS/National Institutes of Health
1 AMS Circle
Bethesda, MD 20892-3675
and on the NIAMS Web site at
http://www.niams.nih.gov/hi/
NIH Publication
No. 97-4178
|
|
This
health article is made available by
Dr. Eliot Y Ghatan MD a Dermatologist. AESTHETIC SURGERY &
DERMATOLOGY office at 1226 Ocean Parkway, Brooklyn, NY 11230.
Dr. Ghatan is easy reachable from Breezy Point, Bronx, Brooklyn,
Connecticut, Far Rockaway, Howard Beach, Long Island, Manhattan,
New Jersey, Queens, Ridgewood, Rockaway Park, and Staten Island.
|
|
|
|
|
|
| |
| |
|
Click Here to E-mail This Page to a Friend
|
|