Evidence map›Paper›PMID 38525936›Full record

ArticleDiseases of the esophagus : official journal of the International Society for Diseases of the Esophagus2024

Pilot study evaluating salivary bile acids as a diagnostic biomarker of laryngopharyngeal reflux.

Amanda J Krause, Madeline Greytak, Marco Kessler, Rena Yadlapati

Open access · greenAbstract read
In one paragraph

Article in Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
5.1field-weighted citation impact, top 5% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Association between Helicobacter pylori, reflux and chronic rhinosinusitis: a systematic review.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 · 2026
    Pooled it
  2. Randomized Controlled Trial of Upper Esophageal Sphincter Assist Device in Laryngopharyngeal Reflux Disease.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2026
    Trial
  3. The Impact of Diet and Enteral Tube Type on Gastric Bile Acid Concentrations and Pulmonary Outcomes.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2026
    Article
  4. Article
  5. Review
  6. Review
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  8. Review
  9. [Content and development of pharyngology and laryngology].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2024
    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

4 authors at 2 institutions in 1 country.

Amanda J KrauseDepartment of Medicine, Division of Gastroenterology & Hepatology, University of California San Diego, San Diego, CA, USA.ORCID 0000-0001-9792-0417
Madeline GreytakDepartment of Medicine, Division of Gastroenterology & Hepatology, University of California San Diego, San Diego, CA, USA.
Marco KesslerClinical Development Department, Ironwood Pharmaceuticals, Boston, MA, USA.
Rena YadlapatiDepartment of Medicine, Division of Gastroenterology & Hepatology, University of California San Diego, San Diego, CA, USA.ORCID 0000-0002-7872-2033
University of California San Diego · USIronwood Pharmaceuticals (United States) · US

Funding

Training Grant in GastroenterologyT32DK007202 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GHOSH, PRADIPTA · 1985 to 2022
$7.7M
The MVP Trial: A Randomized Controlled Trial of Mechanism Guided vs PPI Strategy for Laryngopharyngeal RefluxR01DK139089 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Rena Hiren Yadlapati · 2024 to 2026
$2.0M
Mechanism Guided Therapy for Laryngopharyngeal RefluxK23DK125266 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI YADLAPATI, RENA HIREN · 2021 to 2025
$963k
Role of Psychological Processes on Symptom Burden in Laryngopharyngeal RefluxR03DK135513 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI YADLAPATI, RENA HIREN · 2023 to 2024
$245k
Ironwood PharmaceuticalsNIDDK NIH HHS K23 DK125266NIDDK NIH HHS R01 DK139089NIDDK NIH HHS R03 DK135513NIDDK NIH HHS T32 DK007202NIH HHSNIH HHS DK125266NIH HHS DK135513NIH HHS T32 DK007202
6 · The paper itself

Abstract

Bile acids in refluxate contribute to esophageal and laryngeal symptoms and are quantifiable. The aim of this study was to compare salivary bile acid concentrations across healthy controls and symptomatic patients (esophageal or laryngeal) with or without objective gastroesophageal reflux disease (GERD). This prospective study enrolled adults into three groups: esophageal symptoms (heartburn, regurgitation, chest pain); laryngeal symptoms (cough, throat clearing, sore throat, dysphonia); and controls. Symptomatic patients primarily underwent prolonged wireless reflux monitoring off acid suppression and were categorized as symptomatic no GERD (acid exposure time <4%) or esophageal/laryngeal symptoms with GERD (acid exposure time ≥4%). Controls did not undergo reflux monitoring nor upper endoscopy. Saliva samples were provided for bile acid analysis via ultraperformance liquid chromatography tandem mass spectrometry. Thirty-five participants were enrolled (mean age 47.4 years [SD 18.9], 16 [46%] male), including 10 controls and 25 symptomatic: 9 no GERD, 5 esophageal symptoms + GERD, and 11 laryngeal symptoms + GERD. Total salivary bile acids were highest in the laryngeal symptoms + GERD group (24.2 nM [SD 24.7]) compared to other groups (controls: 5.8 [6.0], P = 0.03; symptomatic no GERD: 3.1 [4.4]; P < 0.01; esophageal symptoms + GERD: 7.1 [7.1], P = 0.10). Bile acids were elevated in 45% (5/11) of the laryngeal symptoms + GERD group compared to 0% of the other three groups (P < 0.01). Salivary bile acids were higher among patients with laryngeal symptoms and objective GERD versus other groups. Salivary bile acids are a quantifiable biomarker with diagnostic potential for laryngopharyngeal reflux.

Indexed as

Bile Acids and SaltsBiomarkersLaryngopharyngeal RefluxSalivaAdultAgedCase-Control StudiesFemaleGastroesophageal RefluxHumansMaleMiddle AgedPilot ProjectsProspective StudiesBile Acids and SaltsBiomarkersbiomarkersdiagnosisesophagusgastroesophageal reflux

Identifiers

PMID38525936
PMCPMC11220665
OpenAlexW4393160497

What Socratic holds

Textmetadata
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 Socratic graph.