Evidence map›Paper›PMID 26256170›Full record

ArticleCarbohydrate polymers2015

Alginate as a protease inhibitor in vitro and in a model gut system; selective inhibition of pepsin but not trypsin.

Peter Ian Chater, Mathew D Wilcox, Iain A Brownlee, Jeffrey P Pearson

Open access · hybridAbstract read
In one paragraph

Article in Carbohydrate polymers, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
4.0field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 65 citations in OpenAlex.

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  13. Effects of acids, pepsin, bile acids, and trypsin on laryngopharyngeal reflux diseases: physiopathology and therapeutic targets.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 2 countries.

Peter Ian ChaterInstitute for Cell and Molecular Biosciences (ICaMB), Medical School, Newcastle University, Catherine Cookson Building, Framlington Place, Newcastle upon Tyne NE2 4HH, United Kingdom. Electronic address: peter.chater@ncl.ac.uk.
Mathew D WilcoxInstitute for Cell and Molecular Biosciences (ICaMB), Medical School, Newcastle University, Catherine Cookson Building, Framlington Place, Newcastle upon Tyne NE2 4HH, United Kingdom.
Iain A BrownleeNanyang Polytechnic, Food and Human Nutrition Department, Newcastle University Office, 180 Ang Mo Kio, Avenue 8, 569830 Singapore, Singapore.
Jeffrey P PearsonInstitute for Cell and Molecular Biosciences (ICaMB), Medical School, Newcastle University, Catherine Cookson Building, Framlington Place, Newcastle upon Tyne NE2 4HH, United Kingdom.
Newcastle University · GBNanyang Polytechnic · SG

Funding

Biotechnology and Biological Sciences Research Council BB/G00563X/1Biotechnology and Biological Sciences Research Council BBG50092/1
6 · The paper itself

Abstract

Alginates are widely used in the food and medical industries, including as a Gastro-Oesophagul Reflux treatment. This work investigates the inhibitory effects of alginate on the reflux aggressors trypsin and pepsin and the role of alginate-substrate binding, pH and alginate structure on inhibition. Alginates were shown to reduce pepsin activity by up to 53.9% (±9.5SD) in vitro. Strong positive correlation between alginate mannuronate residue frequency and levels of pepsin inhibition was observed. Limited inhibition of trypsin was shown. Viscometric observations of pH dependent interactions between alginate and protein suggest a mechanism whereby pH dependent ionic interactions reduce substrate availability to enzyme at acidic pH. To understand how dietary protein digestion is affected by alginate, proteolytic digestion was investigated in an in vitro model of the upper digestive tract. Significant inhibition of proteolysis was shown in the gastric phase of digestion, but not the small intestinal phase.

Indexed as

Models, BiologicalAlginatesAnimalsCattleGastrointestinal TractGlucuronic AcidHexuronic AcidsHydrogen-Ion ConcentrationPancreasPepsin AProtease InhibitorsSerum Albumin, BovineTrypsinTrypsin Inhibitor, Kunitz SoybeanViscosityAlginatesGlucuronic AcidHexuronic AcidsPepsin AProtease InhibitorsSerum Albumin, BovineTrypsinTrypsin Inhibitor, Kunitz SoybeanAlginateModel gut systemPepsinProteolysisTrypsin

Identifiers

PMID26256170
PMCPMC4539341
OpenAlexW591972345

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.