Description Spinal muscular atrophy (SMA) is a group of inherited disorders characterized by a loss of certain nerve cells in the spinal cord called motor neurons or anterior horn cells. Motor neurons receive the nerve impulses transmitted from the brain to the spinal cord (brainstem) and, in turn, transmit the …
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Paroxysmal Nocturnal Hemoglobinuria – Definition and Treatment.
Definition Paroxysmal nocturnal hemoglobinuria or PNH is a rare and chronic disease that results in an abnormal breakdown of red blood cells. PNH is due to a spontaneous genetic mutation that causes red blood cells to be deficient in a protein, leaving them fragile. Because the kidneys help to filter …
Read More »Spinocerebellar Ataxia (SCA) – Definition, Causes, and Treatment.
Definition Spinocerebellar ataxia (SCA) is a form of the genetically inherited disorder that is characterized by abnormalities in the person’s brain functioning. The disorder represents a varied group of related disorders and is commonly inherited as a dominant trait, meaning that people who carry one of the various different gene …
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