lactase deficiency

noun
congenital disorder consisting of an inability to digest milk and milk products; absence or deficiency of lactase results in an inability to hydrolyze lactose
Hypernyms:

Useful english dictionary. 2012.

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  • Lactase deficiency — Not enough of an enzyme called lactase in the small intestine to digest lactose, a prominent component of milk and most other dairy products. Lactose is sometimes also used as an ingredient in other foods, so anyone with lactase deficiency should …   Medical dictionary

  • Lactase persistence — is the continued activity of the enzyme lactase in adulthood. Since lactase s only function is the digestion of lactose in milk, in most mammalian species the activity of the enzyme is dramatically reduced after weaning.[1] However in some human… …   Wikipedia

  • Deficiency, lactase — Not enough of an enzyme called lactase in the small intestine to digest lactose, a prominent component of milk and most other dairy products. Lactose is sometimes also used as an ingredient in other foods, so anyone with lactase deficiency should …   Medical dictionary

  • Lactase — Enzyme that breaks down the milk sugar lactose into glucose and galactose. Persons with a deficiency of lactase in the gut can develop abdominal cramping and diarrhea after ingesting milk products. * * * SYN: β d galactosidase. * * * lac·tase lak …   Medical dictionary

  • Lactase — Protein Name=Lactase Symbol=LCT AltSymbols=LAC; LPH; LPH1 HGNCid=6530 Chromosome=2 Arm=q Band=21 LocusSupplementaryData= ECnumber=3.2.1.108 OMIM=603202 EntrezGene=3938 RefSeq=NM 002299 UniProt=P09848 Lactase (LCT), a part of the β galactosidase… …   Wikipedia

  • deficiency — An insufficient quantity of some substance (as in dietary d. or hemoglobin d. in marrow aplasia); organization (as in mental d.); activity (as in enzyme d. or reduced oxygen carrying capacity of the blood), etc., of which the amount present is of …   Medical dictionary

  • disaccharidase deficiency — less than normal activity of disaccharidases of the intestinal mucosa. It usually denotes a generalized deficiency of all such enzymes secondary to a disorder of the small intestine, which clinically may be manifest only as a deficiency of… …   Medical dictionary

  • Galactose-1-phosphate uridylyltransferase deficiency — Classification and external resources Galactose ICD 10 E …   Wikipedia

  • Lactose intolerance — Classification and external resources Lactose (disaccharide of β D galactose β D glucose) is normally split by lactase. ICD 10 …   Wikipedia

  • Lactose intolerance — Inability to digest lactose, a component of milk and most other dairy products. Lactose is sometimes also used as an ingredient in other foods, so those with a lactase deficiency should check labels carefully. The basis for this condition is lack …   Medical dictionary

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