Definition of Lactase deficiency
1. 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.
Generic synonyms: Congenital Disease, Genetic Abnormality, Genetic Defect, Genetic Disease, Genetic Disorder, Hereditary Condition, Hereditary Disease, Inherited Disease, Inherited Disorder
Medical Definition of Lactase deficiency
1. An intolerance to milk and dairy products due to a deficiency of lactase in the intestine. Lactase is a enzyme which breaks down milk sugar or lactose. This condition is common in adults and may affect as many as 70-90% of Asians, African Americans, Native Americans and Mediterranean populations. This condition may also develop as the result of an intestinal disease such as celiac sprue. Symptoms include abdominal cramps, bloating, nausea, weight loss and diarrhoea. Treatment involves removing milk products from the diet. For infant's see Lactofree or ProSobee. (27 Sep 1997)
Lactase Deficiency Pictures
Click the following link to bring up a new window with an automated collection of images related to the term: Lactase Deficiency Images
Lexicographical Neighbors of Lactase Deficiency
Literary usage of Lactase deficiency
Below you will find example usage of this term as found in modern and/or classical literature:
1. Diarrhea and Malnutrition: Interactions, Mechanisms, and Interventions by Lincoln C. Chen, Nevin S. Scrimshaw (1983)
"... even in the ethnic groups known to have primary low lactase activity, significant lactase deficiency does not develop in infants and small children ..."
2. Alcohols Effect on Organ Function edited by Dianne M. Welsh (1997)
"One of these enzymes is lactase, which breaks down the milk sugar lactose; lactase deficiency results in lactose intolerance. Alcohol also interferes with ..."
3. Diabetes in America by Ronald Aubert (1996)
"Lactose malabsorption, a common cause of diarrhea in adults due to lactase deficiency, is more difficult to diagnose in diabetic patients because the ..."