The severity of lupus varies from mild to life threatening. Kidney problems and neurologic complications are more dangerous than the rashes, arthritis or other symptoms. After many years of having lupus, patients may develop hypertension (high blood pressure), accelerated atherosclerosis (plaque and fat build-up in the arteries), heart and lung diseases, kidney failure or osteoporosis. With proper treatment, the majority of people diagnosed with lupus have a normal life expectancy, but many will experience disabilities. Each patient will likely have his or her own specific pattern of symptoms and flares, but the disease can change over time.
Gene regulation is the process of turning genes on and off. During early development, cells begin to take on specific functions. Gene regulation ensures that the appropriate genes are expressed at the proper times. Gene regulation can also help an organism respond to its environment. Gene regulation is accomplished by a variety of mechanisms including chemically modifying genes and using regulatory proteins to turn genes on or off.
Photosensitive systemic lupus erythematosus (SLE) rashes typically occur on the face or extremities, which are sun-exposed regions. Although the interphalangeal spaces are affected, the metacarpophalangeal (MCP) and proximal interphalangeal (PIP) and distal interphalangeal (DIP) joints are spared. Photo courtesy of Dr. Erik Stratman, Marshfield Clinic.
Systemic lupus erythematosus is a multisystem inflammatory disease that is often difficult to diagnose. Before the diagnosis can be established, four of 11 clinical and laboratory criteria must be met. Antinuclear antibody titer is the primary laboratory test used to diagnose systemic lupus erythematosus. Because of the low prevalence of the disease in primary care populations, the antinuclear antibody titer has a low predictive value in patients without typical clinical symptoms. Therefore, as specified by the American College of Rheumatology, this titer should be obtained only in patients with unexplained involvement of two or more organ systems. Pa tients with an antinuclear antibody titer of 1:40 and characteristic multiorgan system involvement can be diagnosed with systemic lupus erythematosus without additional testing; however, patients with an antibody titer of 1:40 who fail to meet full clinical criteria should undergo additional testing, including tests for antibody to doublestranded DNA antigen and antibody to Sm nuclear antigen. While an antinuclear antibody titer of less than 1:40 usually rules out systemic lupus erythematosus, patients with persistent, characteristic multisystem involvement may be evaluated for possible antinuclear antibody–negative disease.
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.
Jump up ^ Johanneson, Bo; Lima, Guadalupe; von Salomé, Jenny; Alarcón-Segovia, Donato; Alarcón-Riquelme, Marta E.; Collaborative Group on the Genetics of SLE, The BIOMED II Collaboration on the Genetics of SLE and Sjögrens syndrome (2002-11-01). "A major susceptibility locus for systemic lupus erythemathosus maps to chromosome 1q31". American Journal of Human Genetics. 71 (5): 1060–1071. doi:10.1086/344289. ISSN 0002-9297. PMC 385085. PMID 12373647.
The cause of lupus remains unknown, but there is solid evidence that genetics, epigenetics (changes in chromosomes that affect gene activity), environmental factors, viruses and infections play a role. Further study of these variables is expected to improve our understanding of causes, which should lead to improved diagnosis, prognosis, prevention, and treatment.
Thinning hair is often one of the first symptoms of lupus. Hair loss is the result of inflammation of the skin and scalp. Some people with lupus lose hair by the clump. More often, hair thins out slowly. Some people also have thinning of the beard, eyebrows, eyelashes, and other body hair. Lupus can cause hair to feel brittle, break easily, and look a bit ragged, earning it the name “lupus hair.”
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.
Certain people may need to follow a slightly different diet. For example, pregnant women need to avoid eating certain foods; people with lupus nephritis (lupus affecting the kidneys) need to follow advice from their hospital dietician; and dietary advice for people over 60 and for children of various ages may also be different. The British Nutrition Foundation provides further advice and information about healthy eating and alternative diets. You can also find a lot more information in the links for further reading at the end of this article.
Sjogren’s syndrome is a disease that causes dryness in your mouth and eyes. It can also lead to dryness in other places that need moisture, such as your nose, throat and skin. Most people who get Sjogren’s syndrome are older than 40. Nine of 10 are women. Sjogren’s syndrome is sometimes linked to rheumatic problems such as rheumatoid arthritis. In Sjogren’s syndrome, your immune system attacks the glands that make tears and saliva. It may also affect your joints, lungs, kidneys, blood vessels, digestive organs and nerves. The main symptoms are:
Any of a group of glycoproteins with antiviral activity. The antiviral type I interferons (alpha and beta interferons) are produced by leukocytes and fibroblasts in response to invasion by a pathogen, particularly a virus. These interferons enable invaded cells to produce class I major histocompatibility complex surface antigens, increasing their ability to be recognized and killed by T lymphocytes. They also inhibit virus production within infected cells. Type I alpha interferon is used to treat condyloma acuminatum, chronic hepatitis B and C, and Kaposi’s sarcoma. Type I beta interferon is used to treat multiple sclerosis. Type II gamma interferon is distinctly different from and less antiviral than the other interferons. It is a lymphokine, excreted primarily by CD8+ T cells and the helper T subset of CD4+ cells that stimulates several types of antigen-presenting cells, particularly macrophages, to release class II MHC antigens that enhance CD4+ activity. It is used to treat chronic granulomatous disease.
A rheumatologic illness marked by fevers, malaise, weight loss, muscle pain, stiffness (esp. of the shoulders and pelvis), and morning stiffness. It occurs primarily, but not exclusively, in white people over 60. The cause of PMR is unknown. Although there is no single diagnostic test for PMR, patients typically have a markedly elevated erythrocyte sedimentation rate (>50 mm/hr) and no evidence of another disease (such as infection, cancer, rheumatoid arthritis, or lupus). Patients obtain rapid and durable relief from corticosteroids but usually require a course of treatment lasting 6 to 18 months. Pathologically, and sometimes clinically, PMR is related to giant cell arteritis. Mild cases may sometimes respond to nonsteroidal anti-inflammatory drugs.
Elevation of the antinuclear antibody (ANA) titer to 1:40 or higher is the most sensitive of the ACR diagnostic criteria. More than 99 percent of patients with systemic lupus erythematosus have an elevated ANA titer at some point,21,41 although a significant proportion of patients may have a negative ANA titer early in the disease.2 However, the ANA test is not specific for systemic lupus erythematosus. A study41 involving 15 international laboratories found that ANA tests in the general population were positive in 32 percent of persons at a 1:40 dilution and in 5 percent of persons at a 1:160 dilution. Rates of positive ANA tests were not affected by age up to 60 years (the upper age limit of the study).41
Microbial metabolomics constitutes an integrated component of systems biology. By studying the complete set of metabolites within a microorganism and monitoring the global outcome of interactions between its development processes and the environment, metabolomics can potentially provide a more accurate snap shot of the actual physiological state of the cell.
SLE can also flare during or after pregnancy. Whether flares of SLE are more frequent during pregnancy is controversial. The flares do not seem to be exceedingly more serious than those in nonpregnant patients, although pregnancy outcomes are generally more likely to be complicated. Increased rates of hypertension during pregnancy, premature delivery, unplanned cesarean delivery, postpartum hemorrhage, and maternal venous thromboembolism are all more frequent in women with SLE.
Most patients with systemic lupus erythematosus (unless they’re otherwise advised by their rheumatologist) should be taking an oral antimalarial drug — medications originally used to prevent a malaria infection, but that have been found to help with lupus symptoms, says Dr. Kramer. The antimalarial hydroxychloroquine helps prevent lupus flares, minimizes joint inflammation, and controls fever, fatigue, pleurisy (inflammation of the sac surrounding the lungs), and pericarditis (inflammation of the lining around the heart). The drug is also “the backbone of therapy” for most skin rashes associated with lupus, says Kramer. Mouth sores may also be alleviated with this drug. Chloroquine and quinacrine are other antimalarials drugs used to treat lupus. (3)
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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