Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts: Gene/Protein Disease Symptom Drug Enzyme Compound   Target Concepts: Gene/Protein Disease Symptom Drug Enzyme Compound

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Query: EC:3.1.3.1 (alkaline phosphatase)
47,916 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Serum levels of zinc, copper, and selenium, and alkaline phosphatase activity were prospectively studied in 29 patients with inflammatory bowel disease. Fifteen patients had extensive active colitis (active colitis group). Seven patients had active, and seven cases inactive small bowel or ileocecal Crohn's disease (small bowel disease group). Ninety-three healthy subjects acted as controls. Serum trace element levels were considered in relation to vitamin A and E levels, nutritional parameters, the activity of the disease, and the recent intake of steroids. The effect of total enteral nutrition on serum trace elements was studied in seven cases. Serum zinc levels were lower and serum copper levels higher in the active colitis group than in controls (p = 0.0007, and p = 0.02, respectively). More than 50% of patients with active colonic or small bowel disease showed zinc levels below the 15th percentile of the control group. Serum zinc levels correlated with plasma vitamin A in acute colitis (r = 0.67; p = 0.006), and with both serum albumin concentration (r = 0.76; p = 0.002) and disease activity score (r = -0.67, p = 0.009) in patients with small bowel disease. The copper:zinc ratio was higher in the active colitis group than in controls (p = 0.002). In spite of the increase in serum albumin levels and the decrease in disease activity, serum zinc levels remained low after total enteral nutrition. The implications of the abnormal trace element status in patients with inflammatory bowel disease are discussed.
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PMID:Serum zinc, copper, and selenium levels in inflammatory bowel disease: effect of total enteral nutrition on trace element status. 212 4

Eight children with primary and secondary enteropathy were examined, in whom predominantly advanced partial atrophy and subtotal atrophy of the villous apparatus were established. Enzymic histochemical study of the activity of alkaline phosphatase showed correlation with the degree of villous atrophy. Our results confirm that the alkaline phosphatase is an enzyme, indicating regenerative activity of enterocytes.
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PMID:[Correlation between alkaline phosphatase activity and the degree of villi atrophy of the intestinal mucosa in children with glutenic enteropathy]. 274 32

Eleven infants who were suspected clinically of having cows' milk protein sensitive enteropathy were fed with a protein hydrolysate formula for six to eight weeks, after which they had jejunal and rectal biopsies taken before and 24 hours after challenge with cows' milk protein. When challenged six infants (group 1) developed clinical symptoms and five did not (group 2). In group 1 the lesions developed in both the jejunal mucosa (four infants at 24 hours and one at three days), and the rectal mucosa, and the injury was associated with depletion of alkaline phosphatase activity. Infants in group 2 were normal. It seems that rectal injury that develops as a direct consequence of oral challenge with the protein in reactive infants may be used as one of the measurements to confirm the diagnosis of cows' milk protein sensitive enteropathy. Moreover, ingestion of such food proteins may injure the distal colonic mucosa without affecting the proximal small gut in some infants.
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PMID:Rectal mucosa in cows' milk allergy. 281 45

The pathogenesis of a wheat-sensitive enteropathy was explored in a litter bred from two Irish setters with a naturally occurring enteropathy. Jejunal biopsies from all eight progeny exhibited morphological changes comparable to those in the parents, while biochemical abnormalities appeared to be related to age. In biopsies obtained from the first group of four dogs at eight months, the activities of alkaline phosphatase and of leucyl-2-naphthylamidase were almost undetectable while disaccharidases were unaltered. In contrast, analytical subcellular fractionation of biopsies obtained from the second group of four dogs at nine months showed that specific activities now reflected a major deficiency of brush border alkaline phosphatase, and normal brush border leucyl-2-naphthylamidase accompanied by elevated soluble activity. Further studies are indicated to determine whether these findings represent an age-related abnormality affecting specific microvillus membrane proteins.
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PMID:Wheat-sensitive enteropathy in Irish setter dogs: possible age-related brush border abnormalities. 286 58

Acute renal failure was diagnosed by clinical, necropsy and histological criteria in 39 flocks (20 low ground, 13 hill and six marginal upland) in areas served by six veterinary investigation centres. Forty-eight lambs of 12 different breeds or crosses were investigated. The mean age of affected lambs was 38 days (range seven to 84 days); 21 lambs (44 per cent) were aged seven to 28 days, while only eight (17 per cent) were older than two months. Mortality in clinically affected lambs was almost 100 per cent, with no response to various treatments. Histological examination showed that 40 lambs (83 per cent) had nephrosis, while the rest had toxic tubular necrosis, interstitial nephritis or tubular damage associated with oxalate crystal deposits. Only about half of the lambs had any evidence of enteric infections or enteropathy. Acutely ill lambs had azotaemia, haemoconcentration and proteinuria; some lambs had glycosuria or haematuria. Samples of plasma from 22 lambs with nephrosis were compared with similar samples from 82 incontact but asymptomatic lambs. The clinically affected group had significantly elevated plasma urea, creatinine, total protein, globulin, phosphorus and chloride concentrations and significantly reduced plasma calcium concentrations compared with healthy lambs. Affected lambs had a significant reduction also in the calcium:phosphorus ratio. No significant differences between groups was found in plasma concentrations of albumin, glucose, lactate, glycerol, creatine kinase, alkaline phosphatase, sodium, potassium or magnesium.
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PMID:Acute nephropathy in young lambs. 291 11

This study has investigated the potential role of wheat in the pathogenesis of a naturally occurring enteropathy in Irish setter dogs. At eight months on a cereal-containing diet, jejunal biopsies from affected animals exhibited partial villus atrophy, increased intraepithelial lymphocytes, and distinct biochemical abnormalities in the brush border. Activities of alkaline phosphatase and leucyl-2-naphthylamidase were almost undetectable while disaccharidases were unaltered. Activity of 5'-nucleotidase (basolateral membrane) was low, and reduced malate dehydrogenase reflected a loss of mitochondrial activity, but other organelles were unaffected. Recovery was achieved on a wheat-free diet. Relapse on subsequent wheat challenge was characterized by partial villus atrophy and a selective effect on the brush border: modal density was decreased and there was a severe loss of brush-border alkaline phosphatase activity. These findings document a wheat-sensitive enteropathy in Irish setter dogs and suggest that brush-border alkaline phosphatase is specifically susceptible to damage by wheat.
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PMID:Sequential morphologic and biochemical studies of naturally occurring wheat-sensitive enteropathy in Irish setter dogs. 302 59

A series of 31 infants, 28 with cow's milk protein sensitive enteropathy (CMPSE) and 3 controls, was studied for severity and extent of mucosal damage of the upper small bowel in relation to the development of clinical symptoms. Following challenge with the offending cow's milk, 18 infants (Group 1) developed severe mucosal changes at both the proximal and distal small bowel mucosa and all of these infants presented with clinical symptoms. The other 10 infants (Group 2) who did not develop clinical symptoms following the challenge had less severe damage to the distal small bowel mucosa as compared to the proximal region. The histological score of both the proximal and distal postchallenge biopsies were significantly lower in Group 2 as compared to Group 1 infants. The mucosal disaccharidase and alkaline phosphatase levels were depleted in both the proximal and distal biopsies following challenge but the depletion was greater in the proximal than the distal biopsies. It is suggested that the extent and severity of mucosal damage to the proximal duodenum and jejunum have a critical bearing on the development of clinical symptoms.
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PMID:Severity and extent of upper small bowel mucosal damage in cow's milk protein-sensitive enteropathy. 318 70

Fifty two children in whom coeliac disease was confirmed by persistent enteropathy while they were taking gluten were monitored to assess the effects of compliance with a gluten free diet (GFD). Between the ages of 17.8 and 18.5 years height (in 45 patients followed up for a mean of 14.9 years) and weight (in 43 followed up for a mean of 15.2 years) were significantly lower in those complying poorly with a GFD compared with those complying well. Of the 37 patients still attending the clinic after a mean of 25 years, having been followed up for a mean of 18.4 years, 16 who had complied well with the diet had normal or only slightly abnormal mucosal morphology whereas all 10 who had not complied had abnormal morphology. In these 10 lactase, sucrase, and alkaline phosphatase activities were significantly less than values in those who complied well. Mucosal sucrase and alkaline phosphatase activities in those who complied well were no different from those in a control population, whereas lactase activity was significantly lower. It is concluded that failure to comply with a GFD during childhood results in decreased adult stature and in persisting active enteropathy with depressed brush border enzyme activity.
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PMID:Compliance with gluten free diet in coeliac disease. 363 17

Jejunal biopsies from six patients having the small bowel enteropathy associated with common variable immunodeficiency have been subjected to analytical subcellular fractionation and enzymic and regulatory peptide microassay to define the organelle pathology of this syndrome. Compared with normal subjects, the immunodeficient patients had decreased activities of the three brush border enzymes: alkaline phosphatase, gamma-glutamyl transferase and alpha-glucosidase. The other organelle marker enzyme activities and all the regulatory peptide concentrations did not differ from the controls. Density gradient experiments showed a complete loss of particulate beta-glucosidase (lactase) with activity entirely located in the cytosol. The integrity of other organelles was normal. These data indicate that the enteropathy of common variable immunodeficiency is associated with abnormalities in the jejunal brush border analogous to those present in tropical malabsorption syndrome.
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PMID:Jejunal mucosal enzyme activities, regulatory peptides and organelle pathology of the enteropathy of common variable immunodeficiency. 369 46

Mucoid enteropathy was induced experimentally by ligation of the cecum, and the activities of mucosal disaccharidases and alkaline phosphatase were measured at different locations along the small intestine of the sick and control rabbits. In the duodenum of rabbits with mucoid enteropathy, the activity of acid beta-galactosidase II was elevated and hetero beta-galactosidase declined. In the jejunum, the activities of lactase, acid beta-galactosidase I and II, hetero beta-galactosidase, trehalase, sucrase and alkaline phosphatase were significantly lower in animals with mucoid enteropathy. In the ileum, acid beta-galactosidase II, hetero beta-galactosidase, maltase, trehalase, sucrase and alkaline phosphatase showed decreased activity in rabbits with mucoid enteropathy.
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PMID:Intestinal disaccharidase and alkaline phosphatase activities in experimental rabbit mucoid enteropathy. 409


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