Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0017536 (giardiasis)
 1,714 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

An individual who has cystic fibrosis (CF) may suffer from gastrointestinal problems related to inadequately controlled intestinal absorption secondary to the pancreatic insufficiency. These include neonatal meconium ileus, distal intestinal obstruction syndrome (DIOS), constipation and acquired megacolon, rectal prolapse and rarely pancreatitis. If the intestinal malabsorption is well controlled with an effective pancreatic enzyme preparation, DIOS, constipation and rectal prolapse are infrequent. Persisting gastrointestinal symptoms should be investigated thoroughly to exclude other disorders not directly related to the cystic fibrosis; these include cows' milk intolerance, coeliac disease, giardiasis, Crohn's disease and intra-abdominal malignancy. Both appendicitis and intussusception may cause difficult diagnostic problems particularly in patients who may also have distal ileal obstruction syndrome.
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PMID:Cystic fibrosis: gastrointestinal complications. 145 4

Data are presented on scanning electron microscopy (SEM) on small intestinal biopsies of children with chronic diarrhea. In particular, there were 230 patients aged 3 months to 13 years with the following diagnoses: chronic nonspecific diarrhea, cow's milk protein intolerance, soy protein intolerance, giardiasis, cystic fibrosis, gluten-sensitive enteropathy, isolated lactase deficiency, isolated sucrase-isomaltase lactase deficiency, microvillus inclusion disease, rotavirus enteritis, protracted diarrhea of infancy, chylomicron retention disease, visceral myopathy and villous asthenia. Examination of biopsied intestinal mucosa by SEM has yielded important new information and insights on structural pathology and ultrastructural topography. Many of the observed changes helped to better understand the pathophysiology of some of the diarrheal disorders. SEM was also able to detect new features such as mycoplasma-like microorganisms and the absence of the glycocalyx. To adequately assess small bowel mucosal pathology at the ultrastructural level, scanning electron microscopy is an indispensable tool.
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PMID:The scanning electron microscope: how valuable in the evaluation of small bowel mucosal pathology in chronic childhood diarrhea? 182 28

Three children with cystic fibrosis developed steatorrhoea unresponsive to changes in pancreatic supplements. The final diagnoses were chronic giardiasis, stagnant loop syndrome, and Crohn's disease. Refractory intestinal symptoms in cystic fibrosis merit further investigation.
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PMID:Intestinal disease in cystic fibrosis. 323

A group of 107 patients with cystic fibrosis and a control group of 64 normal members of households of patients with cystic fibrosis were surveyed for Giardia lamblia cysts and trophozoites by counterimmunoelectrophoresis of fecal samples. The patient group had a significantly higher rate of infestation than the control group (28.0% vs 6.3%, P = 0.0006), and the disparity between the two groups increased with age (P = 0.005). Aside from cystic fibrosis, all risk factors examined were without influence, except for the presence of household members less than or equal to 5 years of age. We conclude that our patients with cystic fibrosis have a previously unrecognized increased prevalence of giardiasis compared with that in a control population.
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PMID:Prevalence of giardiasis in patients with cystic fibrosis. 335 78

A 20-year-old male patient with cystic fibrosis (CF) is described, who acutely developed hypoalbuminemia concurrently with giardiasis. Hypoalbuminemia could not be explained by the usual causes seen in patients with CF, but resolved with quinacrine therapy. Subsequently, asymptomatic giardiasis was sought but not found by either the string test or stool exam in any of 15 patients with pancreatic insufficiency who were examined in a prospective manner. Although pancreatic insufficiency is felt to be able to act synergistically with giardiasis to accentuate malabsorption, patients with pancreatic insufficiency per se are not necessarily at greater risk for colonization with Giardia.
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PMID:Severe giardiasis in a patient with cystic fibrosis. 398 30

This paper summarizes observations by scanning electron microscopy (SEM) of surface ultrastructure of small bowel mucosa in patients (mostly children) with disorders characterized by chronic diarrhea. Included are chronic nonspecific diarrhea; conditions associated with villous damage, such as gluten-, milk protein- and soy protein-intolerance; giardiasis; cystic fibrosis and Crohn's disease. SEM has proven most useful to characterize pathologic processes on the surface of the small bowel mucosa, and thus has helped gain more insight to explain clinical symptoms. This was particularly true for chronic nonspecific diarrhea. It is predicted that SEM will become a valuable tool to aid in the diagnosis of diseases of the intestinal tract, which is considered one of the principal domains for such surface ultrastructure research.
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PMID:The small bowel mucosa in disease states characterized by chronic diarrhea: observations by scanning electron microscopy. 664 39

Forty-eight cases of chronic diarrhoea in children seen at King Khalid University Hospital over a 5-year period were analysed. The mean age at presentation was 1.8 years (range 0.08-10 years); 34 were boys and 14 girls. Forty-four patients were Saudi and four were non-Saudi Arabs. Most children presented with failure to thrive and pallor. The aetiological factors identified were: the post-gastro-enteritis syndrome with or without lactose intolerance in 16 (33%); coeliac disease in ten (21%); congenital chloride diarrhoea in five (10%); glucose-galactose malabsorption and acrodermatitis enteropathica, each in three (6%); ulcerative colitis, intestinal lymphangiectasia, cow's milk protein intolerance and ataxia telangiectasia, each in two (4%); and giardiasis, immune deficiency and cystic fibrosis, each in one (2%). Five children died.
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PMID:Aetiology of chronic diarrhoea in children: experience at King Khalid University Hospital, Riyadh, Saudi Arabia. 752 25

Several reports have indicated that fecal elastase-1 (EL-1) determination is a new, sensitive, and specific noninvasive pancreatic function test; however, very few patients with malabsorption due to small intestine diseases have been included in the previous studies. The aim of the study was to compare the diagnostic accuracy of fecal EL-1 and fecal chymotrypsin (FCT) in distinguishing between pancreatic maldigestion and intestinal malabsorption. Three groups of subjects were studied: group A included 49 patients with known cystic fibrosis (25 males, median age 5 years); group B included 43 subjects with various small intestine diseases (17 males, median age 6 years); and group C included 45 children without any history of gastrointestinal disease (22 males, median age 5 years). In all patients, stools were collected for 72 h on a standard diet and fecal EL-1, FCT, and steatocrit tests were performed. Both EL-1 and FCT were below normal limits in all CF patients with pancreatic maldigestion not treated with pancreatic enzyme (100% sensitivity for both assays); El-1, but not FCT, was also below normal in all the CF patients with pancreatic maldigestion treated with pancreatic extracts. Both EL-1 and FCT values in the CF group were significantly lower than in subjects with various small intestinal diseases and in children without any history of gastrointestinal disease (P < 0.0001). FCT, but not EL-1, values showed an inverse statistically significant correlation with steatocrit values in the whole CF group (P < 0.001); FCT was below normal in three of four CF patients with steatorrhea on pancreatic enzyme therapy. Both EL-1 and FCT had 100% specificity when calculated in children without any history of gastrointestinal disease; in contrast, specificity was 86% for EL-1 and 76% for FCT if we considered the control group with small intestinal diseases: low EL-1 was observed in two cases of intestinal giardiasis, two cases of short bowel syndrome, one case of celiac disease, and one case of intestinal pseudobstruction; FCT was abnormal in four cases of intestinal giardiasis, three cases of celiac disease, one case of short bowel syndrome, one case of Crohn's disease, and one case of intestinal pseudobstruction. Diagnostic accuracy was 92% for fecal EL-1 and 82% for FCT. Steatocrit values were over the normal limit in 11 patients with small intestine diseases; in 7/11 of these patients at least one of the pancreatic test results was below the normal limit. In conclusions, in patients with CF, fecal EL-1 determination is not more sensitive than FCT in identifying pancreatic maldigestion; however, fecal EL-1 assay is more specific than FCT determination in distinguishing pancreatic maldigestion from intestinal malabsorption.
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PMID:Diagnostic accuracy of fecal elastase 1 assay in patients with pancreatic maldigestion or intestinal malabsorption: a collaborative study of the Italian Society of Pediatric Gastroenterology and Hepatology. 1141 13