Evidence map›Paper›PMID 28992675›Full record

ArticleJournal of neurogastroenterology and motility2017

Relationship Between Salivary Pepsin Concentration and Esophageal Mucosal Integrity in Patients With Gastroesophageal Reflux Disease.

Yu-Wen Li, Daniel Sifrim, Chenxi Xie, Minhu Chen, Ying-Lian Xiao

Open access · diamondAbstract read
In one paragraph

Article in Journal of neurogastroenterology and motility, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

11 citing papers in PubMed, 19 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Application of electron microscopy in gastroenterology.World journal of gastrointestinal pathophysiology · 2022
    Article
  6. Article
  7. Diagnostic performance of salivary pepsin for gastroesophageal reflux disease.Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus · 2021
    Article
  8. Article
  9. Article
  10. Article
  11. Dichloromethane Extracts ofInternational journal of molecular sciences · 2018
    Article
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

5 authors at 2 institutions in 2 countries.

Yu-Wen LiDepartment of Gastroenterology, First affiliated Hospital, Sun Yat-sen University, Guangzhou, GuangDong Province, China.
Daniel SifrimWingate Institute of Neurogastroenterology, Queen Mary University of London, London, UK.
Chenxi XieDepartment of Gastroenterology, First affiliated Hospital, Sun Yat-sen University, Guangzhou, GuangDong Province, China.
Minhu ChenDepartment of Gastroenterology, First affiliated Hospital, Sun Yat-sen University, Guangzhou, GuangDong Province, China.
Ying-Lian XiaoDepartment of Gastroenterology, First affiliated Hospital, Sun Yat-sen University, Guangzhou, GuangDong Province, China.
Sun Yat-sen University · CNQueen Mary University of London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

aimsIncreased salivary pepsin could indicate an increase in gastro-esophageal reflux, however, previous studies failed to demonstrate a correlation between salivary pepsin concentrations and 24-hour esophageal acid exposure. This study aims to detect the salivary pepsin and to evaluate the relationship between salivary pepsin concentrations and intercellular spaces (IS) in different gastroesophageal reflux disease phenotypes in patients.

methodsA total of 45 patients and 11 healthy volunteers were included in this study. All subjects underwent upper gastrointestinal endoscopy, 24-hour ambulatory multichannel impedance-pH (MII-pH) monitoring, and salivary sampling at 3-time points during the 24-hour MII-pH monitoring. IS were measured by transmission electron microscopy, and salivary pepsin concentrations were determined by enzyme-linked immunosorbent assay.

resultsThe IS measurements were greater in the esophagitis (EE), non-erosive reflux disease (NERD), and hypersensitive esophagus (HO) groups than in the functional heartburn (FH) and healthy volunteer groups, and significant differences were indicated. Patients with NERD and HO had higher average pepsin concentrations compared with FH patients. A weak correlation was determined between IS and salivary pepsin among patients with NERD (

conclusionsWe confirmed the presence of a higher level of salivary pepsin in patients with NERD than in patients with FH. Salivary pepsin concentrations correlated with severity of mucosal integrity impairment in the NERD group. We suggest that in patients with NERD, low levels of salivary pepsin can help identify patients with FH, in addition the higher the pepsin concentration, the more likely the severity of dilated IS.

Indexed as

Acid exposure timeDilated intercellular spacesGastroesophageal reflux diseaseSalivary pepsin

Identifiers

PMID28992675
PMCPMC5628983
OpenAlexW2762237010

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Registered trials

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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.