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Published byRodger Wilcox Modified over 9 years ago
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AIM OF THIS PRESENTATION Introduce the important components of the Autoimmune Diseases. Demonstrate what happens when things go wrong & the body turns against itself (Autoimmunity) Provide examples of Autoimmune Disease Such as Graves,Rheumatology.
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OVER VIEW OF THE PRESENTATION TOPICS COVERED AUTOIMMUNE DISEASES CLASSIFICATION OF AUTOIMMUNE DISEAS CAUSES RISK FACTORS DIAGNOSIS TREATMENT GRAVES DIESEASE RHEUMATOID DISEASE RECENT RESEARCH
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AUTOIMMUNITY Autoimmunity is the failure of an organism to recognize its own constituent parts as self, which results in an immune response against its own cells and tissues.
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AUTO IMMUNE DISEASES Autoimmune diseases are disorders in which the body's immune system reacts against some of its own tissue and produces antibodies to attack itself.
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AUTO ANTIBODIES Auto antibodies are the antibodies that attack its own cells, tissues, and/or organs. This causes inflammation and damage and it leads to autoimmune disorders.
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PROMINENT EXAMPLES COELIAC DISEASE DIABETES MELLITUS TYPE 1 (IDDM), SYSTEMIC LUPUS ERYTHEMATOSUS (SLE), SJÖGREN'S SYNDROME CHURG-STRAUSS SYNDROME HASHIMOTO'S THYROIDITIS GRAVES' DISEASE RHEUMATOID ARTHRITIS (RA).
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HISTORY Paul Ehrlich, at the beginning of the twentieth century, proposed the concept of horror autotoxicus, where in a 'normal' body does not mount an immune response against its own tissues. Thus, any autoimmune response was perceived to be abnormal and postulated to be connected with human disease.
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DESCRIPTION The immune system is a network of organs, cells and molecules that work together to defend the body against attacks by foreign (not of the body) invaders such as germs, bacteria, viruses, parasites and fungi.
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In general terms, when antibodies are directed against the body's own cells, or when B and T cells attack and destroy their own body's cells and not foreign antigens, an autoimmune disorder can result
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The autoimmune process can have varied consequences. For example, slow destruction of a particular type of cell or tissue. stimulation of an organ into excessive growth or interference in its functions.
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THYROID PANCREAS ADRENAL GLANDS RED BLOOD CELLS CONNECTIVE TISSUES
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CLASSIFICATION OF AUTOIMMUNE DISEASE Autoimmune disorders fall into two general types: Systemic Autoimmune Diseases Localized Autoimmune Diseases
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Systemic Autoimmune Diseases Non-organ-specific or Systemic Autoimmune Diseases are those that damage many organs. For example, Rheumatoid arthritis (RA), Sjogren's syndrome Lupus Erythematosus Scleroderma,
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Localized Autoimmune Diseases Organ-specific or Localized Autoimmune Diseases are those where only a single organ or tissue is directly damaged by the autoimmune process.For example Type 1 Diabetes Mellitus, Hashimoto's thyroiditis, Celiac disease, Crohn's disease.
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In some cases, a person may have more than one autoimmune disease; for example, persons with Addison's disease often have type 1 diabetes, while persons with sclerosing cholangitis often have ulcerative colitis.
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In some cases, the antibodies may not be directed at a specific tissue or organ; for example, antiphospholipid antibodies can react with clotting proteins in the blood, leading to formation of blood clots within the blood vessels (thrombosis).
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AUTOIMMUNITY LEVEL High level of autoimmunity is unhealthy, a low level of autoimmunity may actually be beneficial.
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CAUSES The cause of autoimmune diseases is unknown, but it appears that there is an inherited predisposition to develop autoimmune disease in many cases.
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In a few types of autoimmune disease (such as rheumatic fever), a bacteria or virus triggers an immune response, and the antibodies or T-cells attack normal cells because they have some part of their structure that resembles a part of the structure of the infecting microorganism.
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RISK FACTORS: Genetic factor, Environmental toxins, Gender, Heredity, viruses, Drugs, Stress, poor diet, lack of exercise, lack of sleep, abuse of alcohol and use of tobacco.
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Genetic Factors: Three main sets of genes are suspected in many autoimmune diseases. These genes are related to: Immunoglobulins T-cell receptors The major histocompatibility complexes(MHC).
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Gender: A person's sex also seems to have a major role in the development of autoimmunity. most of the known autoimmune diseases tend to show a female preponderance. Ankylosing spondylitis,male preponderance Crohn's disease, males and females
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SYMPTOMS OF AUTOIMMUNE DISEASES. The symptoms and signs vary by specific autoimmune disease. The common symptoms are: Fatigue Affect on Weight Muscle pain Insomnia(not able to sleep) Inflammation
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DIAGNOSIS OF AUTOIMMUNE DISEASES. Autoantibody blood tests blood tests to measure inflammation and organ function clinical presentation X-rays
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TREATMENT OF AUTOIMMUNE DISEASES Immunosuppressant drugs - to inhibit the activity of the immune system. Helminthic therapy - - inoculation of the patient with specific parasitic intestinal nematodes Radiation of the lymph nodes and plasmapheresis Treatment for the deficiency - for example, insulin injections in the case of diabetes.
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Treatment of Autoimmune Diseases Anti-inflammatory drugs -to reduce inflammation and pain. Corticosteroids - to reduce inflammation. They are sometimes used to treat an acute flare of symptoms. Pain-killing medication - such as paracetamol and codeine.
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