malabsorption


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Related to malabsorption: malabsorption syndrome

malabsorption

 [mal″ab-sorp´shun]
impaired intestinal absorption of nutrients.
malabsorption syndrome a group of disorders marked by subnormal intestinal absorption of dietary constituents, and thus excessive loss of nutrients in the stool; it may be due to a digestive defect, a mucosal abnormality, or lymphatic obstruction.

mal·ab·sorp·tion

(mal'ab-sōrp'shŭn),
Imperfect, inadequate, or otherwise disordered gastrointestinal absorption.

malabsorption

/mal·ab·sorp·tion/ (mal″ab-sorp´shun) impaired intestinal absorption of nutrients.

malabsorption

(măl′əb-zôrp′shən, -sôrp′-)
n.
Defective or inadequate absorption of nutrients from the intestinal tract.

malabsorption

[mal′əbsôrp′shən]
Etymology: L, malus + absorbere, to swallow
impaired absorption of nutrients from the GI tract. It occurs in celiac disease, sprue, dysentery, diarrhea, inflammatory bowel disease, and other disorders. It may result from an inborn error of metabolism, malnutrition, or any chemical or anatomical condition of the digestive system that prevents normal absorption. See also inborn error of metabolism, malnutrition.

malabsorption

The suboptimal absorption of nutrients from the GI tract.

Clinical findings
Bloating, abdominal pain, diarrhoea.
 
Aetiology
Cystic fibrosis (number one cause in US), abetalipoproteinaemia, acrodermatitis enteropathica, biliary atresia, bovine lactalbumin (cow's milk protein) intolerance, coeliac disease (gluten-induced enteropathy), sprue, juvenile pernicious anaemia, lactose intolerance, parasites (Diphyllobothrium latum, Giardia lamblia, Necator americanus, Strongyloides stercoralis), soy milk protein intolerance, vitamin B12 malabsorption.

malabsorption

GI disease A group of Sx–eg, gas, bloating, abdominal pain, diarrhea due to the inability to properly absorb nutrients Etiology Cystic fibrosis–number one cause in US, abetalipoproteinemia, acrodermatitis enteropathica, biliary atresia, bovine lactalbumin intolerance–cow's milk protein, celiac disease–gluten-induced-enteropathy, sprue, juvenile pernicious anemia, lactose intolerance, parasites–Diphyllobothrium latum, Giardia lamblia, Necator americanus, Strongyloides stercoralis, soy milk protein intolerance, vitamin B12 malabsorption

mal·ab·sorp·tion

(mal'ab-sōrp'shŭn)
Imperfect, inadequate, or otherwise disordered gastrointestinal absorption.

malabsorption

One of a number of disorders in which there is a failure of movement of some of the elements of the diet from the small intestine into the bloodstream so that MALNUTRITION may occur in spite of an adequate diet. See LACTASE DEFICIENCY SYNDROME, COELIAC DISEASE, STEATORRHOEA, RICKETS and OSTEOMALACIA.

Malabsorption

Defective or inadequate absorption of nutrients from the intestinal tract.

malabsorption

impaired absorption of nutrients from the digestive tract. Causes include disease of the small intestine or surgical removal of a major part of it, and lack of digestive enzymes or bile salts.

malabsorption,

n improper absorption of nutrients, characterized by deficiency of carbohydrates, fats, minerals, proteins, and vitamins and excess fat in the stool.

mal·ab·sorp·tion

(mal'ab-sōrp'shŭn)
Imperfect or disordered gastrointestinal absorption.

malabsorption

impaired intestinal absorption of nutrients.

fat malabsorption
malabsorption syndrome
a group of disorders marked by subnormal intestinal absorption of dietary constituents, and thus excessive loss of nutrients in the stool, with chronic diarrhea and weight loss; it may be due to a digestive defect, a mucosal abnormality, or lymphatic obstruction. A common disease in dogs and a major part of some of the enteric diseases of food animals. It is the pathogenesis of the diarrheas of trichostrongylosis of sheep and cattle, of the viral diarrheas of pigs and the undifferentiated chronic diarrheas of horses.
References in periodicals archive ?
Celiac disease may present only as malabsorption of L-thyroxine.
The metabolites of gluten are thought to trigger an immunological reaction that leads to the damage of enterocytes and finally to malabsorption (4).
Studies in the late 1970s and early 1980s [21-23] identified malabsorption as an important cause of morbidity and malnutrition in elderly patients.
In more advanced stages of the disease, when diabetes and malabsorption (a problem due to lack of enzymes) occur, the doctor can use a number of blood, urine, and stool tests to help in the diagnosis of chronic pancreatitis and to monitor the progression of the disorder.
Pancreatic insufficiency results in maldigestion and malabsorption of nutrients which can cause malnutrition, poor weight gain and impaired growth, even though patients may be eating large quantities of food.
The density of inflammation and type of inflammatory cell infiltrate in lamina propria which differs in various forms of malabsorption, along with mucosal edema and epithelial cell damage are also noted in severe forms14.
This study shows that frequency of malabsorption of iron in postmenopausal women is 6.
Malabsorption can cause deficiency of a specific nutrient, for example, vitamin B12 found in Crohn's disease.
In those countries, folate testing could be limited to specific indications such as macrocytic anaemia with peripheral blood morphological changes suggestive of megaloblastosis, alcoholism, malabsorption syndromes such as coeliac disease (most foods fortified with folic acid are not gluten free), some haemopoietic disorders, and chemotherapy patients.
Lactose malabsorption is a very common condition characterized by intestinal lactase deficiency.
Abimosleh said that disorders of the gastrointestinal tract, like inflammatory bowel diseases and chemotherapy-induced mucositis, are associated with malabsorption of food together with inflammation and ulceration of the bowel lining.
The high-fat dietary requirements stem in part from deficiencies in pancreatic enzymes that break down fat in the intestine, combined with malabsorption along many portions of the GI tract.