Canadian Medical Guide > Diseases > Congenital, Hereditary, and Neonatal Diseases and Abnormalities > Genetic Diseases, Inborn > Metabolism, Inborn Errors > Carbohydrate Metabolism, Inborn Errors > Mannosidase Deficiency Diseases Terms and Definitions

Mannosidase Deficiency Diseases

Medical Definition:	Diseases caused by the loss of one or more enzymes involved in the hydrolysis of mannoside linkages (MANNOSIDASES). The defects in enzyme activity are primarily associated with genetic mutation of the genes that codes for a particular mannosidase isoenzyme.
Previously Indexed:	Mannosidosis (1984-2003)

Mannosidase Deficiency Diseases Categories.

	alpha-Mannosidosis - An inborn error of metabolism marked by a defect in the lysosomal isoform of ALPHA-MANNOSIDASE activity that results in lysosomal accumulation of mannose-rich intermediate metabolites. Virtually all patients have psychomotor retardation, facial coarsening, and some degree of dysostosis multiplex. It is thought to be an autosomal recessive disorder.
	beta-Mannosidosis - An inborn error of metabolism marked by a defect in the lysosomal isoform of BETA-MANNOSIDASE that results in lysosomal accumulation of mannose-rich intermediate metabolites containing 1,4-beta linkages. The human disease occurs through autosomal recessive inheritance and manifests itself with variety of symptoms that depend upon the type of gene mutation.

Mannosidase Deficiency Diseases Medical Definitions and Terms

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