disaccharidase deficiency

deficiency /de·fi·cien·cy/ (de-fish´en-se) a lack or shortage; a condition characterized by presence of less than normal or necessary supply or competence.

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color vision deficiency  color blindness; any deviation from normal perception of one or more colors.

disaccharidase deficiency  less than normal activity of the enzymes of the intestinal mucosa that cleave disaccharides, usually denoting a generalized deficiency of all such enzymes secondary to a disorder of the small intestine.

familial apolipoprotein C-II (apo C-II) deficiency  a form of familial hyperchylomicronemia due to lack of apo C-II, a necessary cofactor for lipoprotein lipase.

familial high-density lipoprotein (HDL) deficiency  any of several inherited disorders of lipoprotein and lipid metabolism that result in decreased plasma levels of HDL, particularly Tangier disease.

familial lipoprotein deficiency  any inherited disorder of lipoprotein metabolism resulting in deficiency of one or more plasma lipoproteins.

isolated IgA deficiency , IgA deficiency, selective the most common immunodeficiency disorder, deficiency of IgA but normal levels of other immunoglobulin classes and normal cellular immunity; it is marked by recurrent sinopulmonary infections, allergy, gastrointestinal disease, and autoimmune diseases.

molybdenum cofactor deficiency  an inherited disorder in which deficiency of the molybdenum cofactor causes deficiency of a variety of enzymes, resulting in severe neurologic abnormalities, dislocated ocular lenses, mental retardation, xanthinuria, and early death.

plasma thromboplastin antecedent deficiency , PTA deficiency hemophilia C.

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disaccharidase deficiency.

See lactase deficiency.