A genetic disorder is a disease caused in whole or in part by a change in the DNA sequence away from the normal sequence. Genetic disorders can be caused by a mutation in one gene (monogenic disorder), by mutations in multiple genes (multifactorial inheritance disorder), by a combination of gene mutations and environmental factors, or by damage to chromosomes (changes in the number or structure of entire chromosomes, the structures that carry genes).
B cells are essential for the development and pathogenesis of both systemic and organ-specific autoimmune diseases. Autoreactive B cells are typically thought of as sources of autoantibody, but their most important pathogenetic roles may be to present autoantigens to T cells and to secrete proinflammatory cytokines. A rate-limiting step in the genesis of autoimmunity then is the activation of autoreactive B cells. Here, mechanisms are discussed that normally prevent such activation and how they break down during disease. Integrating classic work with recent insights, emphasis is placed on efforts to pinpoint the precursor cells for autoantibody-secreting cells and the unique stimuli and pathways by which they are activated.
It is estimated that more than 1.5 million Americans have lupus. African American women are three times more likely than white women to have it. Hispanic, Asian and Native American women also have a higher incidence of lupus. People of all ages, races and sexes can get lupus, but 9 out of 10 adults with the disease are women between the ages of 15 and 45.
The role of the immune system in causing diseases is becoming better understood through research. This knowledge will be applied to design safer and more effective treatment methods. For example, completely revising the immune system of people with extremely aggressive treatments that virtually temporarily wipe out the immune system is being evaluated. Current studies involve immune eradication with or without replacement of cells that can reestablish the immune system (stem-cell transplantation).
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So what happens when you grow up and learn that you have lupus, or another equally devastating chronic illness? Should all of your nutritional decisions now be based on what your body needs rather than what tastes best? Can they be one in the same? If you are one of the lucky ones, they already are, and this transition is not quite as tough. But for others, the mandate that you should be choosing foods simply for their nutritional value may be yet, another “hard pill to swallow”, so to speak. Thus, the lupus and diet dilemma.
Erythrocyte Sedimentation Rate: This is a blood test that is used to determine the rate at which red blood cells settle to the bottom of a tube in one hour’s time. If the rate is faster than normal, it may be an indication of a systemic disease, like lupus. It is important to note that this sedimentation rate, or rate of settling, does not specifically indicate lupus, but can be elevated if other inflammatory conditions are present like cancer or an infection.
In one study41 that used patients with connective tissue diseases as the control group, the revised ACR diagnostic criteria for systemic lupus erythematosus were found to have an overall sensitivity of 96 percent and a specificity of 96 percent. Other studies21,32,43 have reported sensitivities ranging from 78 to 96 percent and specificities ranging from 89 to 100 percent. The ACR criteria may be less accurate in patients with mild disease.21
Nonsteroidal anti-inflammatory drugs (NSAIDs): NSAIDs decrease joint swelling, joint pain, fever, and inflammation of the heart and lung linings. These drugs include ibuprofen (brand names Motrin, Advil) and naproxen (Naprosyn, Aleve). Some of these NSAIDs can cause serious side effects like stomach bleeding or kidney damage. Always check with your doctor before taking any medications that are over the counter (without a prescription) for your lupus.
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.
Genome-wide association studies (GWAS) revealed regions of linkage that were found on most chromosomes. These studies are useful in identifying the genes that may be responsible for complex diseases such as SLE. Candidate gene loci implicated with SLE include multiple alleles from the HLA region, Fc-gamma receptor, and complement component system. However, association does not prove that a specific form of a gene is responsible for the disease, as there may be other polymorphisms in the region that have a greater association effect. However, because the biological role of most genes are not completely understood, it can be difficult to attribute phenotypic traits to certain genetic polymorphisms. Since SLE is associated with so many genetic regions, it is likely an oligogenic trait, meaning that there are several genes that control susceptibility to the disease. Further complicating our understanding is the association of certain linkages with various ethnic groups.
An antinuclear antibody (ANA) test is a sensitive screening tool used to detect autoimmune diseases, including lupus. Antinuclear antibodies (ANAs) are antibodies that are directed against certain structures within a cell's nucleus (thus, antinuclear antibody). ANAs are found in particular patterns in people with autoimmune diseases (those in which a person's immune system works against his or her own body).
Approximately 20% of people with SLE have clinically significant levels of antiphospholipid antibodies, which are associated with antiphospholipid syndrome. Antiphospholipid syndrome is also related to the onset of neural lupus symptoms in the brain. In this form of the disease the cause is very different from lupus: thromboses (blood clots or "sticky blood") form in blood vessels, which prove to be fatal if they move within the blood stream. If the thromboses migrate to the brain, they can potentially cause a stroke by blocking the blood supply to the brain.
An increase in the size of an organ, structure, or the body due to growth rather than tumor formation. This term is generally restricted to an increase in size or bulk that results not from an increase in the number of cells but from an increase in a cellular component, e.g., proteins. It applies to any increase in size as a result of functional activity.
Soy products. Soy products are high in a type of estrogen called phytoestrogen, and estrogen is known to be a risk factor for lupus. In animal studies, researchers noted that a diet high in soy seemed to make lupus symptoms worse. Although there is no definitive evidence that soy products cause lupus symptoms, you should be cautious about including large amounts of soy in your diet.
A. Lupus is a chronic disease in which a person's body is attacked by the immune system, which normally fights infections and foreign invaders, such as viruses and bacteria, said Gilkeson, a professor of medicine at the Medical University of South Carolina in Charleston. Lupus can cause a variety of symptoms, including severe fatigue, headaches, painful or swollen joints, fever, swelling in the hands or ankles, a butterfly-shaped rash across the nose and cheeks, sensitivity to light, mouth and nose ulcers, anemia and hair loss.
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.
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.
In addition to prescribing medications, doctors may also recommend lifestyle changes to help manage lupus. These may include avoidance of sun exposure and paying more attention to managing stress to prevent lupus flares (periods of time when symptoms become problematic). People with lupus should also avoid smoking to help with heart and lung health, Kramer says.
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Please Note: The material on this site is provided for informational purposes only and is not medical advice. Always consult your physician before beginning any diet or exercise program.
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