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Today's Terms
Alexander disease
Definition:
Alexander disease is considered one of the leukodystrophies, a group of disorders where the primary abnormality is the inability to maintain the fatty covering (myelin) that insulates nerve fibers in the brain. Alexander disease is a rare disorder of the nervous system that usually begins during infancy or early childhood.
vascular dementia
Definition:
A common form of dementia that results either from narrowing and blockage of the arteries that supply blood to the brain or by strokes that cause an interruption of blood flow within the brain.
endorphins
Definition:
Naturally occurring molecules made up of amino acids. Endorphins attach to special receptors in the brain and spinal cord to inhibit pain signals.
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