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Query: UMLS:C0024523 (malabsorption)
 7,319 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

To clarify the role of fat maldigestion in the pathogenesis of steatorrhea in patients with ileal resection the total and aqueous phase concentrations of bile acid and fatty acid were characterized in 8 such patients (5 patients with small ileal resection, bile acid diarrhea, and steatorrhea less than 20 g per day; 3 patients with large ileal resection, fatty acid diarrhea, and steatorrhea greater than 20 g per day) as well as 4 healthy control subjects after a morning and an afternoon liquid test meal. The study was then repeated with cholestyramine, 4 g being administered before each meal to induce fat maldigestion. After a conventional test meal, patients with large resections and severe steatorrhea had significantly lower aqueous phase concentrations of bile acids (and fatty acids) than patients with smaller resections or control subjects, explained in part by intraluminal precipitation of about one-half of the bile acids during digestion. When cholestyramine was administered before the meal, aqueous phase bile acid concentrations decreased in all patients, including the normal control subjects; the degree of fat maldigestion induced in the patients with small resections (and the control subjects) became similar to that present after the conventional test meal in the patients with large resections. Because steatorrhea increased little in the patients with small resections when cholestyramine was administered continuously, the data suggest that fat maldigestion per se does not induce severe fat malabsorption in patients with sufficient anatomical reserve, because such patients can absorb fat efficiently by utilizing the distal small intestine. In patients with large ileal resections, severe steatorrhea is explained in part by the combination of fat maldigestion and decreased surface area. It is also speculated that the steatorrhea occurring in patients with small resections and relatively normal fat digestion during two test meals may be explained by impaired fat digestion which occurs during the final meal of the day, which is often the largest meal.
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PMID:Role of fat maldigestion in pathogenesis of steatorrhea in ileal resection. Fat digestion after two sequential test meals with and without cholestyramine. 0 60

A 58-year-old patient suffered from severe malabsorption due to agammaglobulinemia. Treated empirically with salicylazosulfapyridine 2--6 g/day, the subjective and objective features of malabsorption regressed. About a year after this treatment she developed a generalized weakness without renewal of the diarrhea; the diagnosis of Heinz body hemolytic anemia was established. In our patient, hemolysis began many months after the commencement of treatment and no deficiency of G6PD or other erythrocyte enzyme or pathological hemoglobin were found.
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PMID:Salicylazosulphapyridine-induced Heinz body anemia. 2 55

The most common initial symptoms in 169 patients with Crohn's disease, followed from 1956 to 1973, were diffuse abdominal pain, diarrhoea without any blood admixture, loss of weight, and fever. At the onset of the disease 84% of patients were aged 10-39 years. The most important complications (in descending order of frequency) were fistulae and abscesses, ileus, anaemia, and malabsorption. A breakdown into active and passive phases indicated that the younger the patient at onset of the disease, the more severe its course. The disease seemed to take a more favourable course when only the colon, but not the terminal ileum, was involved. Recurrence occurred more frequently after a short than after a long preoperative history. Recurrences were more frequent in patients under than over 31 years of age at their first operation.
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PMID:[Crohn's disease: course and prognosis in 169 patients (author's transl)]. 2 19

Three cases of hypogammaglobulinemia are described. In all cases the first symptoms of disease manifesting as pneumonia were preceded by diarrhea. In gastric biopsy there was atrophic gastritis with lack of plasmocytes. All patients demonstrated gastric achylia and symptoms of malabsorption syndrome. The causes of gastrointestinal changes, most probably infections, with simultaneous defective mucosal barrier are discussed.
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PMID:Gastrointestinal changes in patients with hypogammaglobulinemia. 5 51

A case report is given of a 73 years old woman suffering from Whipple's disease. Intermittant polyarthralgias, diarrhea, weight loss and laboratory signs of malabsorption had been present for 6 years, when diagnosis was established by biopsy: pathognomonic PAS-positive macrophages were demonstrated in the duodenal mucosa. A complete remission of the disease could be achieved after 100 mg of doxycycline had been administered continuously for a year. Some special details of the course of Whipple's disease in the higher age group are discussed.
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PMID:[Whipple's disease in an elderly person (author's transl)]. 9 35

We have studied 5 infants with persistent severe diarrhea from birth and marked abnormalities of absorption associated with failure to thrive leading to death in 4 infants. Three had siblings who died and a sibling of a 4th is ill at present, all with a similar illness; 2 were the products of consanguinous marriages. Exhaustive investigation failed to identify a recognized disease entity in any patient. Steatorrhea, sugar malabsorption, dehydration, and acidosis were severe in all patients, whatever the diet fed. Total parenteral nutrition was used, but excessive stool water and electrolyte losses persisted even when nothing was fed by mouth. There was no evidence of a hematological or consistent immunological defect in any infant and no abnormalities of intestinal hormones were noted. In the duodenal mucosa of all infants we saw similar abnormalities characterized by villus atrophy, crypt hypoplasia without an increase in mitoses or inflammatory cell infiltrate in the lamina propria and in villus enterocytes absence of a brush border, increase in lysosome-like inclusions, and autophagocytosis. In 3 infants studied by marker perfusion of the proximal jejunum we found abnormal glucose absorption and a blunted response of Na+ absorption to actively transported nonelectrolytes; in 2 there was net secretion of Na+ and H2O in the basal state. Our patients evidently suffered from a congenital enteropathy which caused profound defects in their capacity to assimilate nutrients. The similar structural lesion seen in the small intestinal epithelium of all of our cases undoubtedly contributed to their compromised intestinal function, but the pathogenesis of this disorder, if indeed it is a single disease, remains obscure.
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PMID:Familial enteropathy: a syndrome of protracted diarrhea from birth, failure to thrive, and hypoplastic villus atrophy. 10 Mar 67

Small round viruses (SRV) were isolated from the faeces of diarrhoeic calves from three farms. All three SRV preparations caused diarrhoea experimentally in gnotobiotic calves. Each preparation contained viral particles of two morphological types, "astrovirus-like" and "calicivirus-like", and from one preparation the two particle types were separated from each other. The calicivirus-like agent ("Newbury agent") was 33 nm in diameter, and caused diarrhoea in gnotobiotic calves with villous atrophy and D-xylose malabsorption. This virus did not infect cell cultures. The astrovirus-like agent did not cause diarrhoea in two gnotobiotic calves; however, it infected cell cultures (primary calf kidney) and the infected cells immunofluoresced with convalescent gnotobiotic-calf antiserum. The astrovirus-like agents in the three preparations were antigenically related. Experiments in calves showed that there was a degree of cross-protection between the three SRV preparations, as judged by the presence or absence of diarrhoea, but that at least three unrelated pathogens were present.
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PMID:Isolation of small viruses resembling astroviruses and caliciviruses from acute enteritis of calves. 10

Fourteen patients with ileal dysfunction due to resection or bypass were encountered over an 18-month period. Symptoms had been present for a mean period of 1.8 years. Diarrhoea was a universal symptom, and varied from mild to incapacitating. Weight loss, due in part to malabsorption and in part to the patients' fear of eating, occurred in 10 of 14 patients. The chief metabolic abnormalities were steatorrhoea and hypokalaemia. Vitamin B12 deficiency, folate deficiency, anaemia, hypoalbuminaemia, hypocalcaemia, hypomagnesaemia, hyperoxaluria, and an abnormal prothrombin ratio were less frequently seen. Treatment with cholestyramine and/or long-chain fat restriction effectively reduced diarrhoea in every case, and this was supplemented by replacement of specific deficiencies. There was little added benefit from non-specific antidiarrhoeal agents. It was found that the major symptoms of ileal dysfunction are readily treated, but that attention should also be given to a number of nutritional deficiencies.
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PMID:Consequences of ileal dysfunction: an approach to management. 10 34

A total of 121 children from an orphange were studied. Their ages ranged from 2 to 10 years and represented different ethnic backgrounds. The prevalence of malnutrition was 45% and their gastrointestinal symptomatology in response to graded amounts of milk intake was evaluated. None of the children complained when milk intakes were of 200 cc; 10% complained of gastrointestinal discomfort and/or diarrhea when 300 cc of milk (equivalent to 12 g of lactose) were administered, and 54% presented lactose malabsorption unrelated to ethnic background, sex or malnutrition. It is concluded that the prevalence of milk intolerance is minimal when milk is given in the usual amounts.
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PMID:[Milk intolerance in Colombian children, its prevalence and relation to lactose malabsorption]. 12 Jul 6

Before reviewing the consequences of extensive exeresis of the small intestine, the physiology of the entero-hepatic circulation of bile salts, the absorption of triglycerides and the varying sites of absorption of foodstuffs at intestinal level are discussed. It has been found that massive (i.e. at least 2/3) removal of the small intestine is incompatible with life owing to the onset of serious metabolic disturbances due to the increase in the speed of transit of foodstuffs from stomach to colon. Malabsorption of lipides causes steatorrhoea and is often associated with choleriform diarrhoea owing to the massive losses of water and electrolytes (Na, Cl, Ca, Mg). Some surgical techniques are illustrated and the local compensation mechanisms (anatomical adaptation of the intestinal mucosa, functional adaptation) designed to prolong transit time are described. Feeding must be parenteral for the first 2--3 months and oral during the alimentary adaptation phase.
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PMID:[Problems of alimentation in massive intestinal resections]. 12 96


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