More information on medical condition: Zellweger Syndrome:
ZS: Another name for Zellweger Syndrome.
ZS (condition): Zellweger spectrum disorders are a group of rare, genetic, multisystem disorders that were once thought to be separate entities. These disorders are now classified as different expressions (variants) of one disease process. Collectively, they form a spectrum or continuum of disease. Zellweger syndrome is the most severe form; neonatal adrenoleukodystrophy is the intermediate form; and infantile Refsum disease is the mildest form.
ZS: Zellweger syndrome is a rare hereditary disorder affecting infants, and usually results in death. (Source: Genes and Disease by the National Center for Biotechnology)
Zellweger syndrome is a rare, congenital (present at birth) disorder characterized by the reduction or absence of peroxisomes (cell structures that rid the body of toxic substances) in the cells of the liver, kidneys, and brain. Zellweger syndrome is one of a group of genetic disorders called peroxisomal diseases that affect brain development and the growth of the myelin sheath, the fatty covering—which acts as an insulator—on nerve fibers in the brain. (Source: excerpt from NINDS Zellweger Syndrome Information Page: NINDS)
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