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Multiple sclerosis (MS) is an autoimmune disease resulting in damage to the insulating covers of nerve cells in the brain and spinal cord. [3] As a demyelinating disease , MS disrupts the nervous system's ability to transmit signals , resulting in a range of signs and symptoms , including physical, mental , and sometimes psychiatric problems.
Currently it is unknown what the primary cause of MS is; if MS is a heterogeneous disease, the lesion development process would not be unique. In particular, some PPMS patients having a special clinical course named rapidly progressive multiple sclerosis could have a special genetic cause [ 47 ] and a different development process.
Main symptoms of multiple sclerosis Symptoms and findings in multiple sclerosis. Multiple sclerosis can cause a variety of symptoms varying significantly in severity and progression among individuals: changes in sensation (hypoesthesia), muscle weakness, abnormal muscle spasms, or difficulty moving; difficulties with coordination and balance; problems in speech or swallowing (), visual ...
Ancient DNA helps explain why northern Europeans have a higher risk of multiple sclerosis than other ancestries: It’s a genetic legacy of horseback-riding cattle herders who swept into the ...
The original report suggests that there may be several types of MS with different immune causes, and that MS may be a family of several diseases. Though originally was required a biopsy to classify the lesions of a patient, since 2012 it is possible to classify them by a blood test [ 173 ] looking for antibodies against seven lipids, three of ...
It’s a common virus that causes illness in the upper and lower respiratory tracts, Dr. William Schaffner, a professor of infectious disease at the Vanderbilt University Medical Center, tells ...
Called zoonotic viruses, they spill over from animals to humans, who can then transmit them to other humans. Liberian Red Cross "burial" team, in Monrovia, Liberia, on October 14, 2014.
Common symptoms present in the different types of leprosy include a runny nose; dry scalp; eye problems; skin lesions; muscle weakness; reddish skin; smooth, shiny, diffuse thickening of facial skin, ear, and hand; loss of sensation in fingers and toes; thickening of peripheral nerves; a flat nose from the destruction of nasal cartilages; and changes in phonation and other aspects of speech ...
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