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  2. Multiple sclerosis - Wikipedia

    en.wikipedia.org/wiki/Multiple_sclerosis

    Multiple sclerosis is typically diagnosed based on the presenting signs and symptoms, in combination with supporting medical imaging and laboratory testing. [5] It can be difficult to confirm, especially early on, since the signs and symptoms may be similar to those of other medical problems.

  3. Signs and symptoms of multiple sclerosis - Wikipedia

    en.wikipedia.org/wiki/Signs_and_symptoms_of...

    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 ...

  4. Neurodegenerative disease - Wikipedia

    en.wikipedia.org/wiki/Neurodegenerative_disease

    Amyotrophic lateral sclerosis (ALS), commonly referred to Lou Gehrig's disease, is a rare neurodegenerative disorder characterized by the gradual loss of both upper motor neurons (UMNs) and lower motor neurons (LMNs). [41] Although initial symptoms may vary, most patients develop skeletal muscle weakness that progresses to involve the entire ...

  5. Life expectancy - Wikipedia

    en.wikipedia.org/wiki/Life_expectancy

    Life expectancy may be confused with the average age an adult could expect to live, creating the misunderstanding that an adult's lifespan would be unlikely to exceed their life expectancy at birth. This is not the case, as life expectancy is an average of the lifespans of all individuals, including those who die before adulthood.

  6. Pathophysiology of multiple sclerosis - Wikipedia

    en.wikipedia.org/wiki/Pathophysiology_of...

    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.

  7. Gliosis - Wikipedia

    en.wikipedia.org/wiki/Gliosis

    Micrograph showing gliosis in the cerebellum. Reactive astrocytes on the left display severe proliferation and domain overlap. Reactive astrogliosis is the most common form of gliosis and involves the proliferation of astrocytes, a type of glial cell responsible for maintaining extracellular ion and neurotransmitter concentrations, modulating synapse function, and forming the blood–brain ...

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