Researchers have made great progress in identifying people at-risk for lupus and the molecular markers (something found in cells that can predict lupus flares) that appear before the onset of symptoms. From these advances, scientists hope to generate early-intervention or even disease-prevention strategies. For people with established lupus, research is focused on designing new clinical trials that test drug candidates, which, if successful, could be combined with existing therapies. The Lupus Research Alliance is funding the most innovative research in the world, with the hope of finding better diagnostics, improved treatment and, eventually, a cure.
Changes in ESR over time can help guide a healthcare professional toward a possible diagnosis. Moderately elevated ESR occurs with inflammation, but also with anemia, infection, pregnancy, and old age. A very high ESR usually has an obvious cause, such as a marked increase in globulins that can be due to a severe infection. A rising ESR can mean an increase in inflammation or a poor response to a therapy. A decreasing ESR can mean a good response, though keep in mind that a low ESR can be indicative of diseases such as polycythemia, extreme leukocytosis, and protein abnormalities.
The mission of the National Institute of Arthritis and Musculoskeletal and Skin Diseases is to support research into the causes, treatment, and prevention of arthritis and musculoskeletal and skin diseases; the training of basic and clinical scientists to carry out this research; and the dissemination of information on research progress in these diseases.
The CBC is among the most common blood tests performed in the clinical laboratory and aids in the diagnosis of anemia and erythrocytosis; bleeding and the repletion of blood cells by transfusion, thrombocytopenia and thrombocytosis; and infections and leukemias. Blood is obtained for the test from venipuncture or aspiration from an indwelling vascular access or port. It is taken to the laboratory in a tube that contains the anticoagulant ethylenediaminetetraacetic acid (EDTA).
The American College of Rheumatology (ACR) established eleven criteria in 1982, which were revised in 1997 as a classificatory instrument to operationalise the definition of SLE in clinical trials. They were not intended to be used to diagnose individuals and do not do well in that capacity. For the purpose of identifying people for clinical studies, a person has SLE if any 4 out of 11 symptoms are present simultaneously or serially on two separate occasions.
Why the test is used: Between 75% and 90% of people with lupus have a positive anti-dsDNA test. Also, the test is very specific for lupus. Therefore, a positive test can be useful in confirming a diagnosis. For many people, the titer, or level, of the antibodies rises as the disease becomes more active. So, doctors can also use it to help measure disease activity. Also, the presence of anti-dsDNA indicates a greater risk of lupus nephritis, a kidney inflammation that occurs with lupus. So a positive test can alert doctors to the need to monitor the kidneys.
Patient global assessment (PGA) is one of the most widely used PROs in RA practice and research and is included in several composite scores such as the 28-joint Disease Activity Score (DAS28). PGA is often assessed by a single question with a 0–10 or 0–100 response. The content can vary and relates either to global health (e.g., how is your health overall) or to disease activity (e.g., how active is your arthritis).
As required by Section 801 of the Food and Drug Administration Amendments Act, in general, a description of any agreement between the sponsor of a clinical study and the principal investigator (PI) that does not allow the PI to discuss the results of the study or to publish the study results in a scientific or academic journal after the trial is completed. (This does not apply if the PI is an employee of the sponsor.)
Flare-ups of lupus can cause acute inflammation and damage to various body tissues and can affect the joints, skin, kidneys, heart, lungs, blood vessels, and brain. Some of the most common symptoms are painful or swollen joints, unexplained fever, kidney problems and extreme fatigue. A characteristic red skin rash – called a “malar” or “butterfly” rash because it roughly mimics the insect’s shape – may appear across the nose and cheeks. Rashes may also occur on the face and ears, upper arms, shoulders, chest, and hands. Because many lupus patients are sensitive to sunlight, skin rashes often develop or worsen after sun exposure.
Once a lupus diagnosis has been confirmed by your physician, you will have many questions. Here is a quick list of questions to help you get started in getting the necessary information in order to have a better understanding of your specific symptoms and move forward towards the most successful course of treatment and/or management of the disease. It may also be helpful to have an advocate along with you like a friend or loved one to help you remember important details:
Lyme disease is caused by the bacterium Borrelia burgdorferi and is transmitted to humans through the bite of infected blacklegged ticks. Typical symptoms include fever, headache, fatigue, and a characteristic skin rash called erythema migraines. If left untreated, infection can spread to joints, the heart, and the nervous system. Lyme disease is diagnosed based on symptoms, physical findings (e.g., rash), and the possibility of exposure to infected ticks; laboratory testing is helpful if used correctly and performed with validated methods. Most cases of Lyme disease can be treated successfully with a few weeks of antibiotics. Steps to prevent Lyme disease include using insect repellent, removing ticks promptly, applying pesticides, and reducing tick habitat. The ticks that transmit Lyme disease can occasionally transmit other tickborne diseases as well.
Tingible body macrophages (TBMs) – large phagocytic cells in the germinal centers of secondary lymph nodes – express CD68 protein. These cells normally engulf B cells that have undergone apoptosis after somatic hypermutation. In some people with SLE, significantly fewer TBMs can be found, and these cells rarely contain material from apoptotic B cells. Also, uningested apoptotic nuclei can be found outside of TBMs. This material may present a threat to the tolerization of B cells and T cells. Dendritic cells in the germinal center may endocytose such antigenic material and present it to T cells, activating them. Also, apoptotic chromatin and nuclei may attach to the surfaces of follicular dendritic cells and make this material available for activating other B cells that may have randomly acquired self-specificity through somatic hypermutation. Necrosis, a pro-inflammatory form of cell death, is increased in T lymphocytes, due to mitochondrial dysfunction, oxidative stress, and depletion of ATP.
The complement system is the name of a group of blood proteins that help fight infection. Complement levels, as the name implies, measure the amount and/or activity of those proteins. Working within the immune system, the proteins also play a role in the development of inflammation. In some forms of lupus, complement proteins are consumed (used up) by the autoimmune response. A decrease in complement levels can point toward lupus nephritis, lupus nephritis, kidney inflammation. Normalization of complement levels can indicate a favorable response to treatment.
Chronic fatigue syndrome (CFS) is a disorder that causes extreme fatigue. This fatigue is not the kind of tired feeling that goes away after you rest. Instead, it lasts a long time and limits your ability to do ordinary daily activities. The main symptom of CFS is severe fatigue that lasts for 6 months or more. You also have at least four of these other symptoms:
Lupus is often missed or misdiagnosed because the symptoms are vague and can match those of other conditions. Generally, a doctor will review your medical history and your family history, and look for signs of systemic inflammation. Because lupus can involve the internal and external organs, a doctor will rely on observation as well as laboratory testing in order to make a lupus diagnosis. There is no one test for lupus–generally, many different criteria will need to come together, and it can take years to reach a diagnosis.
Corticosteroids are more potent than NSAIDs in reducing inflammation and restoring function when the disease is active. Corticosteroids are particularly helpful when internal organs are affected. Corticosteroids can be given by mouth, injected directly into the joints and other tissues, or administered intravenously. Unfortunately, corticosteroids have serious side effects when given in high doses over prolonged periods, and the doctor will try to monitor the activity of the disease in order to use the lowest doses that are safe. Side effects of corticosteroids include weight gain, thinning of the bones and skin, infection, diabetes, facial puffiness, cataracts, and death (necrosis) of the tissues in large joints.
The antinuclear antibody (ANA) test is used to detect autoantibodies that react against components of the nucleus of the body's cells. It's currently one of the most sensitive diagnostic tests available for diagnosing lupus (SLE). That's because 97 percent or more of people with lupus (SLE) have a positive ANA test result. A negative ANA test result means lupus (SLE) is unlikely.
CAD happens when the arteries that supply blood to heart muscle become hardened and narrowed. This is due to the buildup of cholesterol and other material, called plaque, on their inner walls. This buildup is called atherosclerosis. As it grows, less blood can flow through the arteries. As a result, the heart muscle can’t get the blood or oxygen it needs. This can lead to chest pain (angina) or a heart attack. Most heart attacks happen when a blood clot suddenly cuts off the hearts’ blood supply, causing permanent heart damage.
Over half of the people with SLE develop a characteristic red, flat facial rash over the bridge of their nose. Because of its shape, it is frequently referred to as the "butterfly rash" of SLE. The rash is painless and does not itch. The facial rash, along with inflammation in other organs, can be precipitated or worsened by exposure to sunlight, a condition called photosensitivity. This photosensitivity can be accompanied by worsening of inflammation throughout the body, called a "flare" of the disease.
Any of the plasma proteins whose concentration increases or decreases by at least 25% during inflammation. Acute-phase proteins include C-reactive protein, several complement and coagulation factors, transport proteins, amyloid, and antiprotease enzymes. They help mediate both positive and negative effects of acute and chronic inflammation, including chemotaxis, phagocytosis, protection against oxygen radicals, and tissue repair. In clinical medicine the erythrocyte sedimentation rate or serum C-reactive protein level sometimes is used as a marker of increased amounts of acute-phase proteins.
SLE is an autoimmune disease involving multiple organ systems, a clinical pattern of flares and remissions, and the presence of anti-nuclear autoantibodies. Whereas early symptoms most frequently involve the skin and joints, disease morbidity and mortality are usually associated with cardiovascular events and damage to major organs, particularly the kidneys. Many of the current therapeutic options are considered to be inadequate because of toxicities, accrual of organ damage, and insufficient control of the underlying disease pathology. Improved understanding of SLE pathogenesis and immunology has led to the identification of new treatment targets. Current interest is mainly focused on the targeted immunosuppressive actions provided by biologic therapy. Although the potential long-term beneficial or harmful effects of the new molecular treatments are unclear, their precise molecular targeting may reveal key relationships within the immune system and advance the cause of individualized molecular medicine.
Micrograph of a section of human skin prepared for direct immunofluorescence using an anti-IgG antibody. The skin is from a person with systemic lupus erythematosus and shows IgG deposits at two different places. The first is a bandlike deposit along the epidermal basement membrane ("lupus band test" is positive); the second is within the nuclei of the epidermal cells (antinuclear antibodies are present).
Cognitive impairment is defined as any difficulty with normal thought functions or processes, such as thinking, learning, or remembering. Cognitive impairment can occur as a neurological symptom of lupus. However, cognitive impairment is a common occurrence that happens to everyone at some time, not just lupus patients, and it can affect one single thought process or many thought processes either temporarily or permanently.
Blood clots are seen with increased frequency in lupus. Clots often occur in the legs (a vein clot, called deep venous thrombosis), lungs (a lung clot, called pulmonary embolus), or brain (stroke). Blood clots that develop in lupus patients may be associated with the production of antiphospholipid antibodies. These antibodies are abnormal proteins that may increase the tendency of the blood to clot.
Kidney involvement in people with lupus is potentially life threatening and may occur in up to half of lupus patients. Kidney problems may become apparent when lupus patients feel ill with arthritis, have a rash, fever and weight loss. Less often, kidney disease may occur when there are no other symptoms of lupus. Kidney disease itself usually does not produce symptoms until it is in the advanced stages. It is important that kidney disease be diagnosed early and treated appropriately. The earliest signs of kidney disease are apparent from a urinalysis.
Immunosuppressive Medications Immunosuppressives are medications that help suppress the immune system. Many were originally used in patients who received organ transplants to help prevent their bodies from rejecting the transplanted organ. However, these drugs are now also used for the treatment of certain autoimmune diseases, such as lupus and rheumatoid arthritis.
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