| 释义 |
lactase deficiency
Thesaurus| Noun | 1. | lactase deficiency - congenital disorder consisting of an inability to digest milk and milk products; absence or deficiency of lactase results in an inability to hydrolyze lactoselactose intolerance, milk intolerancecongenital disease, genetic abnormality, genetic defect, genetic disease, genetic disorder, hereditary condition, hereditary disease, inherited disease, inherited disorder - a disease or disorder that is inherited genetically |
EncyclopediaSeelactaselactase deficiency
lactase [lak´tās] β-d-galactosidase; an enzyme in the intestinal mucosa that hydrolyzes lactose, producing glucose and galactose.lactase deficiency a deficiency of intestinal lactase, which causes abdominal distention and cramping and often diarrhea when milk is drunk. The condition is usually hereditary with an onset between infancy and early adulthood, and is more common in Blacks, American Indians, and East Asians (70 to 90 per cent) than in Whites (10 to 15 per cent). It may also occur secondary to massive small bowel resection or to diseases involving the mucosa, such as celiac disease, Crohn's disease, tropical sprue, and ulcerative colitis.lactose intolerance A term that encompasses an array of adverse responses to consumption of non-human milk, in particular the inability to digest lactose, a sugar in milk and many dairy products. Up to 75% of adults have a decrease in lactase with age, which presents clinically as abdominal bloating, cramps, flatulence, diarrhea, nausea and/or vomiting, and borborygmi (a rumbling noise of the intestines).lactase deficiency
Related to lactase deficiency: lactose intolerance, Lactase enzymeSynonyms for lactase deficiencynoun congenital disorder consisting of an inability to digest milk and milk productsSynonyms- lactose intolerance
- milk intolerance
Related Words- congenital disease
- genetic abnormality
- genetic defect
- genetic disease
- genetic disorder
- hereditary condition
- hereditary disease
- inherited disease
- inherited disorder
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