Autoimmune Disorders That Attack the Nervous System
Autoimmune disorders occur when the immune system mistakenly attacks the body's own tissues as if they were harmful invaders, such as bacteria or cancer cells. This leads to inflammation, destruction of healthy tissue and changes in organ function.
If you are experiencing serious medical symptoms, seek emergency treatment immediately.
Autoimmune disorders of the nervous system can attack the central nervous system (CNS), which includes the brain and spinal cord, or the peripheral nervous system, consisting of nerves that connect the CNS with the limbs and organs 1. Some autoimmune disorders attack only the nervous system while others affect multiple organ systems 1.
Multiple Sclerosis
Multiple sclerosis (MS) is a chronic autoimmune disorder of the CNS. With MS, the immune system attacks the outer protective covering of nerves called the myelin sheath. This process, known as demyelination, results in damaged nerves that cannot transmit messages normally. Demyelination can happen in various parts of the CNS that control different body functions, leading to varied symptoms. Examples include:
- Muscle symptoms — poor balance, numbness, difficulty walking, weakness, muscle cramps, muscle stiffness
- Bowel and bladder symptoms — constipation, difficulty emptying the bladder, frequent urge to urinate
- Visual symptoms — double vision, vision loss
- Sensory symptoms — pain, tingling, numbness
- Cognitive symptoms — memory loss, fogginess, moodiness
- Multiple sclerosis (MS) is a chronic autoimmune disorder of the CNS.
- Demyelination can happen in various parts of the CNS that control different body functions, leading to varied symptoms.
Myasthenia Gravis
Neurological Disorders That Have Symptoms of Electrical Shock Feelings
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With myasthenia gravis, the immune system attacks receptors that enable nerves to communicate with voluntary (skeletal) muscles. This chronic disease results in episodes of muscle weakness that worsen with activity and improve with rest. Possible symptoms include:
- Muscle symptoms — weakness, reduced grip strength, difficulty climbing stairs and lifting
- Eye symptoms — drooping of the upper eyelids, double vision
- Other symptoms — shortness of breath, difficulty swallowing, altered voice, fatigue
Guillain-Barré Syndrome
With Guillain-Barré syndrome, the immune system attacks the peripheral nerves, causing inflammation and temporary malfunction. Symptoms come on and tend to progress quickly, often days to weeks after an infection. Typical symptoms include weakness that begins in the legs and gradually spreads upward in the body, with both sides of equally affected.
In severe cases, temporary paralysis might occur. If this paralysis affects the muscles of breathing, short-term mechanical ventilation is needed. Recovery can take weeks to months and some people experience long-term weakness.
- With Guillain-Barré syndrome, the immune system attacks the peripheral nerves, causing inflammation and temporary malfunction.
- Symptoms come on and tend to progress quickly, often days to weeks after an infection.
Chronic Inflammatory Demyelinating Polyneuropathy
Disorders of the Peripheral Nervous System
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Chronic inflammatory demyelinating polyneuropathy (CIDP) is an uncommon, chronic autoimmune disorder that attacks the peripheral nerves. The condition often involves damage to the nerve cells themselves as well as demyelination.
Symptoms typically develop gradually over several weeks to a few months and usually involve abnormalities in sensation, such as numbness and tingling, as well as muscle weakness and possibly paralysis. In some people, these symptoms come and go.
- Chronic inflammatory demyelinating polyneuropathy (CIDP) is an uncommon, chronic autoimmune disorder that attacks the peripheral nerves.
- The condition often involves damage to the nerve cells themselves as well as demyelination.
Systemic Autoimmune Disease
Systemic autoimmune diseases — those that affect multiple organ systems — sometimes lead to damage to the CNS and/or the peripheral nerves. A June 2012 Current Opinion in Neurology review article reported that 5 to 22 percent of people with systemtic lupus erythematosus experience peripheral nervous system symptoms.
Specific symptoms vary depending on the nerve(s) involved. The symptoms occur due to an immune system attack on the nerves themselves or an attack on the blood vessel that supply the affected nerves.
Another systemic autoimmune disorder called Sjögren syndrome also frequently attacks the nerves, causing muscle and/or sensation-related symptoms. According to the Current Opinion in Neurology article, 10 to 60 percent of people with Sjögren syndrome experience nervous system symptoms.
- Systemic autoimmune diseases — those that affect multiple organ systems — sometimes lead to damage to the CNS and/or the peripheral nerves.
- The symptoms occur due to an immune system attack on the nerves themselves or an attack on the blood vessel that supply the affected nerves.
Autoimmune diseases involving the nervous system are often chronic, requiring ongoing medical care and monitoring 5. Treatments vary depending on the specific condition. Physical therapy, occupational therapy and/or speech therapy are often included in the overall medical treatment plan. Many people with chronic autoimmune nervous system conditions find individual counseling and support groups helpful.
Contact your doctor right away if you experience any symptoms that might suggest an illness affecting your nervous system. Seek immediate medical care if you experience any warning signs or symptoms, including:
- Sudden weakness or paralysis
- Sudden vision change or loss of vision
- Slurred speech
- Fever, chills, headache and/or neck stiffness
- Difficulty breathing or shortness of breath
- Extreme drowsiness or a change in mental state
Reviewed and revised by: Tina M. St. John, M.D.
- Autoimmune diseases involving the nervous system are often chronic, requiring ongoing medical care and monitoring 5.
- Many people with chronic autoimmune nervous system conditions find individual counseling and support groups helpful.
Related Articles
References
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- Pharmacy and Therapeutics: Multiple Sclerosis Review
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- Joural of Neurology, Neurosurgery and Psychiatry: Chronic Inflammatory Demyelinating Polyradiculoneuropathy: From Pathology to Phenotype
- Current Pharmaceutical Design: Treatment of Central Nervous System Involvement Associated With Primary SjöGren's Syndrome
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Writer Bio
Maja Fiket has been writing about medicine and science since 2002, first as graduate student and then as a medical and science freelance writer. She has written for the news website of the University of Chicago Medical Center. Fiket received her Ph.D. in molecular biology in Berlin, Germany/