The rate of SLE varies between countries, ethnicity, and sex, and changes over time. In the United States, one estimate of the rate of SLE is 53 per 100,000; other estimates range from 322,000 to over 1 million. In Northern Europe the rate is about 40 per 100,000 people. SLE occurs more frequently and with greater severity among those of non-European descent. That rate has been found to be as high as 159 per 100,000 among those of Afro-Caribbean descent. Childhood-onset systemic lupus erythematosus generally presents between the ages of 3 and 15 and is four times more common in girls.
All of the energy and material transformations that occur within living cells. It includes material changes undergone by substances during all periods of life (growth, maturity, and senescence) and energy changes (transformations of chemical energy of foodstuffs to mechanical energy or heat). Metabolism involves the two fundamental processes of anabolism and catabolism.
Although guidelines for SLE treatment do exist and there is scarce evidence to support specific therapies for Latin American patients with lupus,16–21 this regional effort has considered the impact of racial/ethnic background1 10 22–28 and SES3 9 on lupus outcomes and treatment response.25 26 Other medication variables such as cost and availability were also taken into account since they affect adherence and are relevant in decision-making.27 28 GLADEL and the Pan-American League of Associations of Rheumatology have joined efforts to produce these guidelines,29 which are presented by organ systems, although manifestations usually occur in more than one. Nevertheless, treatment is usually tailored to the more severe manifestation(s), which usually benefits the less severe.
The principal receptors on animal cells for binding most extracellular matrix proteins—including collagens, fibronectin, and laminins—are the integrins. Integrins, like other cell adhesion molecules, differ from cell-surface receptors for hormones and for other extracellular soluble signal molecules in that they usually bind their ligand with lower affinity and are usually present at about tenfold to a hundredfold higher concentration on the cell surface. If the binding were too tight, cells would presumably become irreversibly glued to the matrix and would be unable to move—a problem that does not arise if attachment depends on large numbers of weak adhesions. This is an example of the “Velcro principle” mentioned earlier. Like other transmembrane cell adhesion proteins, however, integrins do more than just attach a cell to its surroundings. They also activate intracellular signaling pathways that communicate to the cell the character of the extracellular matrix that is bound.
Madeline Gilkes focused her research project for her Master's of Healthcare Leadership on Health Coaching for Long-Term Weight Loss in Obese Adults. She also has a Graduate Certificate in Adult & Vocational Education, Graduate Certificate in Aged Care, Bachelor of Nursing, Certificate IV Weight Management and Certificate IV Frontline Management. Madeline is an academic and registered nurse. Her vision is to prevent lifestyle diseases, obesogenic environments, dementia and metabolic syndrome. She has spent the past years in the role of Clinical Facilitator and Clinical Nurse Specialist (Gerontology and Education).
The panel suggests SOC alone over adding other immunosuppressant (IS) in adult patients with SLE with MSK manifestations (weak recommendation based on low certainty of the evidence). It suggests also adding either MTX, LFN, belimumab or ABT to those failing to respond to SOC (weak recommendation based on low to moderate certainty of the evidence). Cost and availability may favour MTX (table 1).
Inflammation of the heart muscle, usually in the U.S. as a consequence of infections (viruses, esp. coxsackie virus, and occasionally as a consequence of bacterial, protozoan or fungal infections); immunological-rheumatological conditions (e.g., systemic lupus erythematosus, ulcerative colitis, hypersensitivity reactions, or transplant rejection); exposure to chemicals or toxins (e.g., cocaine, doxorubicin, methamphetamine); nutritional or metabolic abnormalities (e.g., thiamine deficiency or hypophosphatemia); or radiation. Myocarditis also is occasionally found in pregnancy and with advanced age. The myocardium is infiltrated by leukocytyes, lymphocytes, and macrophages, leading to inflammation, necrosis of muscle cells, and fibrosis. Inflammatory damage to heart muscle fibers may resolve spontaneously or may cause progressive deterioration of the heart with pericarditis, arrhythmias, chronic dilated cardiomyopathy, and heart failure.
Avoid calcium supplements, however, which Johns Hopkins researchers have found to potentially increase the risk of heart damage and arterial plaque buildup. “Due to the risk of accelerated atherosclerosis in lupus, we no longer recommend calcium supplementation and encourage a diet rich in calcium instead,” noted George Stojan, MD, a rheumatologist and assistant professor of medicine at Johns Hopkins.
Corticosteroids. Corticosteroids (prednisone) may help reduce swelling, tenderness, and pain. In high doses, they can calm the immune system. Corticosteroids, sometimes just called “steroids,” come in different forms: pills, a shot, or a cream to apply to the skin. Lupus symptoms usually respond very quickly to these powerful drugs. Once this has happened, your doctor will lower your dose slowly until you no longer need it. The longer a person uses these drugs, the harder it becomes to lower the dose. Stopping this medicine suddenly can harm your body.
A complex of genes on chromosome 6 that code for the antigens that determine tissue and blood compatibility. In humans, histocompatibility antigens are called human leukocyte antigens (HLA) because they were originally discovered in large numbers on lymphocytes. There are thousands of combinations of HLA antigens. Class I MHC antigens (HLA-A, HLA-B, and HLA-C) are found on all nucleated cells and platelets. Class II antigens (HLA-DR, HLA-DQ, and HLA-DP) are found on lymphocytes and antigen processing cells and are important in the specific immune response. In tissue and organ transplantation, the extent to which the HLA or “tissue type” of the donor and recipient match is a major determinant of the success of the transplant.
Consuming foods in their natural, whole form limits your exposure to synthetic additives, toxins or pesticides. These chemicals are very commonly found in packaged products and non-organic foods (even many veggies and fruit!). Because those with lupus already have weakened immune systems, reducing exposure to synthetic hormones, chemicals, medications and heavy metals is usually crucial for recovery.
The occasional glass of red wine or beer isn’t restricted. However, alcohol can interact with some of the medicines you take to control your condition. Drinking while taking NSAID drugs such as ibuprofen (Motrin) or naproxen (Naprosyn), for example, could increase your risk of stomach bleeding or ulcers. Alcohol can also reduce the effectiveness of warfarin (Coumadin) and may increase the potential liver side-effects of methotrexate.
Anti-dsDNA test:This is the protein directed against the double-stranded DNA, the material making up the genetic code. This test is very specific for lupus, and can be used to determine a lupus diagnosis. One in every two people with lupus has a positive anti-dsDNA test. The presence of this anti-dsDNA can indicate a higher risk of lupus nephritis, kidney inflammation that can occur with lupus. This test can confirm the need to closely monitor the kidneys. Only half the people with lupus have a positive test, so a positive or negative test does not mean you have lupus.
An antibody, produced by B cells in response to an altered autoantigen on one type of the body’s own cells, that attacks and destroys these cells. Autoantibodies are the basis for autoimmune diseases such as rheumatoid arthritis and diabetes mellitus. Several theories exist about why autoantibodies are formed. The most common theory proposes that AAbs develop as the result of a combination of hereditary and environmental risk factors that cause an autoantigen to be falsely recognized as alien by B cells; as a result, antibodies are produced for its destruction.
The mechanism by which foreign antigens are taken into antigen-presenting cells (APCs) and broken up. Part of the antigen is then displayed (presented) on the surface of the APC next to a histocompatibility or self-antigen, activating T lymphocytes and cell-mediated immunity. T lymphocytes are unable to recognize or respond to most antigens without APC assistance.
Certain foods, including garlic and alfalfa sprouts, should be avoided by people with lupus. [For a more complete list of items to be avoided, please see the article “Things to Avoided” in the Lupus 101 section.] Recently controversy has also arisen over whether aspartame induces lupus. However, scientists have concluded that there is no evidence to suggest that aspartame causes lupus.
Raynaud’s phenomenon is a condition in which the small blood vessels in the fingers and toes spasm, limiting circulation, says Dr. Kaplan. People with Raynaud’s are extremely sensitive to cold temperatures and, in those conditions, will often notice a loss of circulation and loss of color in their digits much more quickly than people without the condition. Raynaud’s affects about a third of people with lupus and can cause color loss in the fingers and toes, which first turn blue, followed by red. (9)
In addition to the 11 criteria, other tests can be helpful in evaluating people with SLE to determine the severity of organ involvement. These include routine testing of the blood to detect inflammation (for example, the erythrocyte sedimentation rate, or ESR, and the C-reactive protein, or CRP), blood-chemistry testing, direct analysis of internal body fluids, and tissue biopsies. Abnormalities in body fluids (joint or cerebrospinal fluid) and tissue samples (kidney biopsy, skin biopsy, and nerve biopsy) can further support the diagnosis of SLE. The appropriate testing procedures are selected for the patient individually by the doctor.
Environment Researchers suspect environmental factors may increase the risk of developing lupus. For example, exposure to sun can cause a lupus rash and some systemic lupus activity, says Stacy Ardoin, MD, a rheumatologist at the Ohio State University Wexner Medical Center in Columbus. Other environmental factors that may contribute to lupus can include some drugs, viral infections, exhaustion, stress, and anything that can cause physical stress to the body (such as surgery, physical harm, injury, pregnancy, or giving birth).
Acute cutaneous: This is the type of skin flare that occurs when your SLE is active. Lesions associated with acute cutaneous lupus appear as flattened areas of red skin on the face, reminiscent of a sunburn—the telltale butterfly rash. These lesions can appear on the arms, legs, and body, and are photosensitive. Though the lesions may discolor the skin, they don't scar. Lesions typically appear during a flare or after sun exposure.
There are assertions that race affects the rate of SLE. However, a 2010 review of studies which correlate race and SLE identified several sources of systematic and methodological error, indicating that the connection between race and SLE may be spurious. For example, studies show that social support is a modulating factor which buffers against SLE-related damage and maintains physiological functionality. Studies have not been conducted to determine whether people of different racial backgrounds receive differing levels of social support. If there is a difference, this could act as a confounding variable in studies correlating race and SLE. Another caveat to note when examining studies about SLE is that symptoms are often self-reported. This process introduces additional sources of methodological error. Studies have shown that self-reported data is affected by more than just the patients experience with the disease- social support, the level of helplessness, and abnormal illness-related behaviors also factor into a self-assessment. Additionally, other factors like the degree of social support that a person receives, socioeconomic status, health insurance, and access to care can contribute to an individual’s disease progression. Racial differences in lupus progression have not been found in studies that control for the socioeconomic status [SES] of participants. Studies that control for the SES of its participants have found that non-white people have more abrupt disease onset compared to white people and that their disease progresses more quickly. Non-white patients often report more hematological, serosal, neurological, and renal symptoms. However, the severity of symptoms and mortality are both similar in white and non-white patients. Studies that report different rates of disease progression in late-stage SLE are most likely reflecting differences in socioeconomic status and the corresponding access to care. The people who receive medical care have often accrued less disease-related damage and are less likely to be below the poverty line. Additional studies have found that education, marital status, occupation, and income create a social context which contributes to disease progression.
People with SLE have intense polyclonal B-cell activation, with a population shift towards immature B cells. Memory B cells with increased CD27+/IgD—are less susceptible to immunosuppression. CD27-/IgD- memory B cells are associated with increased disease activity and renal lupus. T cells, which regulate B-cell responses and infiltrate target tissues, have defects in signaling, adhesion, co-stimulation, gene transcription, and alternative splicing. The cytokines B-lymphocyte stimulator (BLys), interleukin 6, interleukin 17, interleukin 18, type I interferons, and tumor necrosis factor α (TNFα) are involved in the inflammatory process and are potential therapeutic targets.
A normal-range ANA titer in the context of organ system involvement that suggests systemic lupus erythematosus should prompt a work-up for alternative diagnoses. If no other cause is identified, the diagnosis of ANA-negative systemic lupus erythematosus and consultation with a rheumatologist should be considered. If patients with a normal ANA titer develop new clinical features that are consistent with systemic lupus erythematosus, ANA testing should be repeated.46 [Evidence level C, consensus/expert guidelines]
The ACR recommends ANA testing in patients who have two or more unexplained signs or symptoms listed in Table 2.2,20,21 [Reference2—Evidence level C, consensus/expert guidelines] Because of the high rate of false positive ANA titers, testing for systemic lupus erythematosus with an ANA titer or other autoantibody test is not indicated in patients with isolated myalgias or arthralgias in the absence of these specific clinical signs.45 Under most circumstances, a persistently negative ANA titer (less than 1:40) can be assumed to rule out systemic lupus erythematosus.41
After one more attempt at getting something useful to work with to help myself, I realized I was on my own dealing with lupus. In an internal fit of rage toward her cold, aloof attitude I decided right then and there that I would heal my lupus, (with the added bonus to never endure the presence of that 'specialist' again). I did. I don't have lupus anymore.
A primary lymphoid organ located in the mediastinal cavity anterior to and above the heart, where it lies over the superior vena cava, aortic arch, and trachea. The thymus comprises two fused lobes, the right larger than the left. The lobes are partially divided into lobules, each of which has an outer cortex packed with immature and developing T lymphocytes (thymocytes) and an inner medulla containing a looser arrangement of mature T lymphocytes.
The male hormone DHEA (dehydroepiandrosterone), produced in the adrenals, seems to help and may reduce the need for prednisone. Although DHEA is available over-the-counter, don’t take it without medical supervision. It presents an increased risk of heart attack and breast and prostate cancer so it is vital that a physician monitor anyone taking it for lupus. Furthermore, over-the-counter brands of DHEA may not be as reliable as prescription forms.
Get involved in your care. Learn as much as you can about lupus, your medications, and what kind of progress to expect. Take all your medications as your doctor prescribes, and visit your rheumatologist often to prevent serious problems. This lets your doctor keep track of your disease and change your treatment as needed. If you do not live near a rheumatologist, you may need to have your primary care doctor manage your lupus with the help of a rheumatologist.
When lupus starts affecting other organs of the body, doctors often prescribe drugs that suppress the immune system, says Kramer. (Lupus causes the body’s immune system to mistakenly attack itself. Immunosuppressive medications help stop that from happening.) One such example, is Cytoxan (cyclophosphamide), originally an anticancer drug. It suppresses the immune system and may be used to reduce inflammation of the kidney, or nephritis, says Dr. Kaplan.
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