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Topic: Myasthenia gravis


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  Myasthenia Gravis
Myasthenia gravis is a chronic autoimmune neuromuscular disease characterized by varying degrees of weakness of the skeletal (voluntary) muscles of the body.
Myasthenia gravis is caused by a defect in the transmission of nerve impulses to muscles.
Other therapies used to treat myasthenia gravis include plasmapheresis, a procedure in which abnormal antibodies are removed from the blood, and high-dose intravenous immune globulin, which temporarily modifies the immune system and provides the body with normal antibodies from donated blood.
www.med.umich.edu /1libr/aha/ummuscle16.htm   (752 words)

  
 Myasthenia Gravis   (Site not responding. Last check: 2007-10-22)
The name myasthenia gravis, which is Latin and Greek in origin, literally means "grave muscle weakness." With current therapies, however, most cases of myasthenia gravis are not as "grave" as the name implies.
The hallmark of myasthenia gravis is muscle weakness that increases during periods of activity and improves after periods of rest.
In myasthenia gravis, antibodies block, alter, or destroy the receptors for acetylcholine at the neuromuscular junction which prevents the muscle contraction from occurring.
quicksitebuilder.cnet.com /jaminantiquesandcollectables/id24.html   (1737 words)

  
 MYASTHENIA GRAVIS - A SUMMARY
In acquired myasthenia gravis, the post-synaptic muscle membrane is distorted and simplified, having lost its normal folded shape.
Almost 20% of patients with myasthenia gravis whose symptoms began between the ages of 30 and 60 years have thymoma; the frequency is much lower when symptom onset is after age 60.
The future of Myasthenia Gravis lies in the elucidation of the molecular immunology of the anti-acetylcholine receptor response with the goal of developing a rational treatment for the illness that will cure the abnormality in the immune system that results in the AChR immune response.
www.myasthenia.org /information/summary.htm   (3152 words)

  
 Myasthenia Gravis
A regional database of myasthenia gravis (MG) patients was used to estimate the prevalence and selected characteristics of the disease in the county of Stockholm, Sweden.
Myasthenia gravis, an autoimmune disorder of the neuromuscular junction, is usually recognized because of ocular complaints or generalized weakness.
Myasthenia was graded according to a modified Osserman classification: 51 patients (23.5%) were in class I, 81(37.3%) in class IIA, 52 (24%) in class IIB, 26 (12%) in class III and seven (3.2%) in class IV.
www.thedoctorsdoctor.com /diseases/myasthenia_gravis.htm   (7943 words)

  
 M- Myasthenia Gravis
Myasthenia gravis is a neuromuscular disease in which weakness is the primary sign.
Myasthenia gravis can be very variable in the way it looks.
Conversely, whenever myasthenia gravis is diagnosed, chest X-rays should be done to evaluate the esophagus, in case megaesophagus is present.
www.vetinfo.com /dencyclopedia/demysgrav.html   (551 words)

  
 Myasthenia Gravis
Myasthenia gravis is an autoimmune disorder in which muscle fatigue results from impaired transmission.
Myasthenia gravis may be associated with various abnormalities of the thymus gland.
The patient’s myasthenia gravis symptoms should be well controlled with the lowest dose of medication necessary to decrease the chance of a “flare-up” around the time of surgery.
www.umm.edu /thoracic/myasthenia_gravis.html   (1426 words)

  
 Myasthenia Gravis Information on Healthline
Myasthenia gravis is an autoimmune disease that causes muscle weakness.
Myasthenia gravis (MG) affects the neuromuscular junction, interrupting the communication between nerve and muscle, and thereby causing weakness.
Myasthenia gravis is often diagnosed accurately by a careful medical history and a neuromuscular exam, but several tests are used to confirm the diagnosis.
www.healthline.com /galecontent/myasthenia-gravis   (1012 words)

  
 Myasthenia gravis - MayoClinic.com
Myasthenia gravis is a chronic disorder characterized by weakness and rapid fatigue of any of the muscles under your voluntary control.
The cause of myasthenia gravis is a breakdown in the normal communication between nerves and muscles.
Myasthenia gravis may cause double vision, drooping eyelids, difficulties with speech, chewing, swallowing and breathing, as well as weakness of your limbs.
www.mayoclinic.com /health/myasthenia-gravis/DS00375   (227 words)

  
 Myasthenia Gravis
Myasthenia gravis is an autoimmune disease that affects the neuromuscular junction, which is where the nerves communicate with the muscles and stimulate movement.
Myasthenia gravis can also be caused by a tumor of the thymus gland, called a thymoma.
The most common and earliest symptoms of myasthenia gravis are double vision, caused by weakness of the eye muscle, and drooping eyelids, caused by weakness of the eyelid muscle.
www.hmc.psu.edu /healthinfo/m/myastheniagravis.htm   (899 words)

  
 MYASTHENIA GRAVIS - MDA   (Site not responding. Last check: 2007-10-22)
Myasthenia gravis is a chronic muscle disease that produces weakness and abnormally rapid fatigue of the voluntary muscles.
The symptoms of myasthenia gravis are caused by a defect in the transmission of nerve impulses to muscles, even though the nerves and muscles themselves may remain normal.
Myasthenia gravis is therefore termed an autoimmune disease because the body's immune system appears to be attacking its own tissues.
www.mda.org.au /specific/mdamg.html   (927 words)

  
 Myasthenia Gravis
Myasthenia gravis is a disease which interrupts the way nerves communicate with muscles.
Myasthenia gravis has been described as a recessive genetic disease in the Jack Russell terrier, the Springer Spaniel, and the Smooth Fox Terrier.
Thymectomy (removal of the thymus gland) is a well accepted part of treatment for myasthenia gravis in humans but is still unproven to help in the treatment of dogs and cats.
www.marvistavet.com /html/body_myasthenia_gravis.html   (812 words)

  
 Myasthenia Gravis Information Page: National Institute of Neurological Disorders and Stroke (NINDS)
The first noticeable symptoms of myasthenia gravis may be weakness of the eye muscles, difficulty in swallowing, or slurred speech.
If the doctor suspects myasthenia gravis, several diagnostic tests are available to confirm the diagnosis, including a special blood test that can detect the presence of immune molecules or acetylcholine receptor antibodies.
Thymectomy, the surgical removal of the thymus gland (which often is abnormal in myasthenia gravis patients), improves symptoms in certain patients and may cure some individuals, possibly by re-balancing the immune system.
www.ninds.nih.gov /disorders/myasthenia_gravis/myasthenia_gravis.htm   (571 words)

  
 Myasthenia   (Site not responding. Last check: 2007-10-22)
Myasthenia Gravis is a rare chronic autoimmune condition characterized by weakness and rapid fatigue, drooping eyelids, double vision, difficulty talking, chewing and swallowing, weakness in limbs and respiratory difficulties.
A lot of people with Myasthenia Gravis also have trouble with their Thymus gland, which is an immune system organ.
The key symptom that alerts a physician to the possibility of Myasthenia is muscle weakness that improves with rest.
www.geocities.com /Athens/Acropolis/6338/myasthenia.html   (169 words)

  
 Q & A Myasthenia Gravis
Myasthenia gravis is an acquired autoimmune disorder of neuromuscular transmission.
Impairment of memory, urinary incontinence, numbness, lack of sensation or incoordination are the symptoms that are not expected in patients with myasthenia gravis.
About 15% of patients with myasthenia gravis have a malignant tumor of the thymus gland, which is called thymoma.
www.myoneursupport.org /Q_Amyastheniagravis.htm   (639 words)

  
 Myasthenia gravis - Wikipedia, the free encyclopedia
Weakness is caused by circulating antibodies that block acetylcholine receptors or the MuSK protein at the post-synaptic neuromuscular junction, inhibiting the stimulative effect of the neurotransmitter acetylcholine.
In single fibre electromyography, which is considered to be the most sensitive (although not the most specific) test for myasthenia gravis, a thin needle electrode is inserted into a muscle to record the electric potentials of individual muscle fibers.
The result is a decrease in patency of the NMJ, and the consequent symptoms of myasthenia gravis.
en.wikipedia.org /wiki/Myasthenia_gravis   (1639 words)

  
 Myasthenia Gravis - WrongDiagnosis.com
Myasthenia gravis (sometimes abbreviated MG; from the Greek myastheneia, lit.
Myasthenia is treated with immunosuppression and cholinesterase inhibitors.
With a diagnosis of Myasthenia Gravis, it is also important to consider whether there is an underlying condition causing Myasthenia Gravis.
www.wrongdiagnosis.com /m/myasthenia_gravis/intro.htm   (870 words)

  
 Myasthenia gravis
The cause of autoimmune disorders such as myasthenia gravis is unknown.
In some cases, myasthenia gravis may be associated with tumors of the thymus (an organ of the immune system).
Myasthenia gravis affects about 3 of every 10,000 people and can affect people at any age.
www.pennhealth.com /ency/article/000712.htm   (791 words)

  
 MYASTHENIA GRAVIS   (Site not responding. Last check: 2007-10-22)
Myasthenia gravis is an autoimmune disease that affects the transmission of signals from nerves to muscles.
The name myasthenia gravis comes from Greek and Latin words meaning "grave muscle weakness." Today, however, most cases of MG are not as "grave" as the name implies.
In rare cases, myasthenia is caused by a defective gene and appears in infants born to non-myasthenic mothers.
www.4woman.gov /faq/mgravis.htm   (1362 words)

  
 Myasthenia Gravis - NeurologyChannel
Myasthenia gravis (MG) is a chronic autoimmune disorder that results in progressive skeletal muscle weakness.
In early stages, myasthenia gravis primarily affects muscles that control eye movement (extraocular muscles) and those that control facial expression, chewing, and swallowing.
Within a year of onset, approximately 85–90% of patients develop generalized myasthenia gravis, which is characterized by weakness in the trunk, arms, and legs.
www.neurologychannel.com /myastheniagravis   (477 words)

  
 Handbook of Ocular Disease Management - Myasthenia Gravis
Patients with myasthenia gravis typically present with symptoms of variable ocular fatigue and weakness.
Myasthenia gravis (MG) is an autoimmune disease that destroys key components of the neuromuscular system responsible for governing muscular activity.
Ninety percent of patients with myasthenia gravis will develop ocular signs or symptoms, and 80 percent of patients who present with ocular involvement progress to have involvement of additional muscle groups within two years of the initial presentation.
www.revoptom.com /handbook/sect7c.htm   (627 words)

  
 Myasthenia gravis
In moderate to severe cases, myasthenia gravis may cause difficulties with speech, chewing, swallowing and breathing, as well as weakness of your limbs.
Myasthenia gravis can affect people of any age, but it's more common in women younger than 40 and in men older than 60.
For unknown reasons, myasthenia gravis causes your immune system to produce antibodies that block or destroy many of the receptor sites for acetylcholine in your muscles.
www.cnn.com /HEALTH/library/DS/00375.html   (1455 words)

  
 Myasthenia Gravis Links
Myasthenia gravis is an autoimmune disease affecting the neuromuscular junction and producing weakness of voluntary muscles.
It is a chronic disease deriving its name from Latin and Greek words meaning "grave muscle weakness." This myasthenia gravis homepage contains a collection of LINKS to excellent sources of information needed by patients and families of patients to help them understand their disease, treatments and the side effects of medications.
Daily living with myasthenia gravis is also featured on the Life With Myasthenia Homepage maintained by Donna and Amy Whittaker.
pages.prodigy.net /stanley.way/myasthenia   (462 words)

  
 Myasthenia Gravis
Myasthenia gravis is a chronic, autoimmune, neuromuscular disease characterized by varying degrees of muscle weakness.
The condition may be restricted to certain muscle groups, particularly those of the eyes (Ocular Myasthenia Gravis), or may become more generalized (Generalized Myasthenia Gravis), involving multiple muscle groups.
Myasthenia Gravis results from an abnormal immune reaction in which the body's natural immune defenses (i.e., antibodies) inappropriately attack and gradually destroy certain receptors in muscles that receive nerve impulses (antibody-mediated autoimmune response).
www.uic.edu /com/eye/PatientCare/EyeConditions/MyastheniaGravis.shtml   (161 words)

  
 MedlinePlus: Myasthenia Gravis
Myasthenia Gravis (National Institute of Neurological Disorders and Stroke)
Myasthenia Gravis (National Institute of Neurological Disorders and Stroke) - Short Summary
The primary NIH organization for research on Myasthenia Gravis is the National Institute of Neurological Disorders and Stroke
www.nlm.nih.gov /medlineplus/myastheniagravis.html   (238 words)

  
 Myasthenia Gravis
The distinctive feature of Myasthenia Gravis (MG) is fluctuating weakness of muscles, made worse by use of those muscles and improved at least partially by rest of the same muscles.
The "gravis," or seriousness, of myasthenia is particularly noticeable when muscles we use in breathing are affected.
Weakness and fatigue are such common complaints from a variety of causes that it is not surprising that the diagnosis of myasthenia gravis is often missed in people in whom the weakness is mild or restricted to only a few muscles.
www.northshorelij.com /body.cfm?id=988   (1941 words)

  
 Myasthenia Gravis
Myasthenia gravis is the most common primary disorder of neuromuscular transmission.
Initially, people with myasthenia gravis may complain about specific muscle weakness, particularly in the eyes, face and neck.
The University of Chicago Hospitals have resources for a full array of diagnostic procedures, including nerve conduction electromyography (EMG) studies (also called repetitive nerve stimulation), nerve and muscle biopsies, and single fiber EMG studies to identify the muscle jitter that is characteristic to most patients with myasthenia gravis.
ucneurology.uchicago.edu /Neurological_Disorders/NeuroMuscular/Myasthenia_Gravis/myasthenia_gravis.html   (283 words)

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