Literature DB >> 1120361

Modification of an assay for trypsin and its application for the estimation of enteropeptidase.

H Preiser, J Schmitz, D Maestracci, R K Crane.   

Abstract

A sensitive method for the estimation of trypsin and enteropeptidase is described. The use of alpha-N-benzoyl-DL-arginine-p-nitroanilide as substrate in combination with the Bratton-Marshall reaction increased the sensitivity of an established method to a degree which permits the determination of enteropeptidase at considerably lower activity levels than heretofore such as those expected in brush border membrane preparations from peroral biopsies of human small intestine.

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Year:  1975        PMID: 1120361     DOI: 10.1016/0009-8981(75)90025-x

Source DB:  PubMed          Journal:  Clin Chim Acta        ISSN: 0009-8981            Impact factor:   3.786


  13 in total

1.  Influence of aging upon pancreatic digestive enzymes.

Authors:  R E Greenberg; P R Holt
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2.  Elevation of resting fluid secretion precedes trophic responses in the rat pancreas following a single oral administration of Camostat.

Authors:  K Terasawa; T Kanno
Journal:  Int J Pancreatol       Date:  1991-04

3.  Digestive enzyme activities are higher in the shortfin mako shark, Isurus oxyrinchus, than in ectothermic sharks as a result of visceral endothermy.

Authors:  Kyle C Newton; James Wraith; Kathryn A Dickson
Journal:  Fish Physiol Biochem       Date:  2015-04-17       Impact factor: 2.794

4.  Pancreaticobiliary maljunction-associated pancreatitis: an experimental study on the activation of pancreatic phospholipase A2.

Authors:  T Nakamura; A Okada; J Higaki; H Tojo; M Okamoto
Journal:  World J Surg       Date:  1996-06       Impact factor: 3.352

5.  Digestive enzyme activities and gastrointestinal fermentation in wood-eating catfishes.

Authors:  Donovan P German; Rosalie A Bittong
Journal:  J Comp Physiol B       Date:  2009-07-01       Impact factor: 2.200

6.  The release of rat intestinal cholecystokinin after oral trypsin inhibitor measured by bio-assay.

Authors:  S J Brand; R G Morgan
Journal:  J Physiol       Date:  1981       Impact factor: 5.182

7.  Specific one-stage method for assay of enterokinase activity by release of radiolabelled activation peptides from alpha-N-[3H]acetyl-trypsinogen and the effect of calcium ions on the enzyme activity.

Authors:  A I Magee; D A Grant; J Hermon-Taylor; R E Offord
Journal:  Biochem J       Date:  1981-07-01       Impact factor: 3.857

8.  Suppression of secretagogue-induced amylase secretion in pancreatic acini of cold-exposed rats.

Authors:  Y Habara
Journal:  J Physiol       Date:  1989-07       Impact factor: 5.182

9.  Augmentation of secretagogue-induced amylase secretion in pancreatic acini of heat-exposed rats.

Authors:  Y Habara
Journal:  J Physiol       Date:  1989-06       Impact factor: 5.182

10.  Do herbivorous minnows have "plug-flow reactor" guts? Evidence from digestive enzyme activities, gastrointestinal fermentation, and luminal nutrient concentrations.

Authors:  Donovan P German
Journal:  J Comp Physiol B       Date:  2009-04-11       Impact factor: 2.200

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