Cited by 30Gastroesophageal reflux and treatmentsGastrointestinal motility and disordersHelicobacter pylori-related gastroenterology studies

Effect of hyperglycemia on triggering of transient lower esophageal sphincter relaxations

Zhang, Qing, Horowitz, Michael, Rigda, Rachael, Rayner, Christopher, Worynski, Andrew, Holloway, Richard H.·2004·American Journal of Physiology-Gastrointestinal and Liver Physiology

Abstract

Acute changes in blood glucose concentration have major effects on gastrointestinal motor function. Patients with diabetes mellitus have an increased prevalence of gastroesophageal reflux. Transient lower esophageal sphincter (LES) relaxation (TLESR) is the most common sphincter mechanism underlying reflux. The aim of this study was to investigate the effect of acute hyperglycemia on triggering TLESRs evoked by gastric distension in healthy volunteers. TLESRs were stimulated by pressure-controlled and volume-controlled (500 ml) gastric distension using an electronic barostat and performed on separate days. On each day, esophageal manometry was performed in the sitting position during gastric distension for 1 h under euglycemia (5 mM), and either marked hyperglycemia (15 mM) or physiological hyperglycemia (8 mM) in randomized order was maintained by a glucose clamp. Marked hyperglycemia doubled the rate of TLESRs in response to both pressure-controlled [5 (3-10.5, median or interquartile range) to 10 (9.5-14.5) per hour, P < 0.02] and volume-controlled [4 (2.5-7.5) to 10.5 (7-12.5) per hour, P < 0.02] gastric distension but had no effect on basal LES pressure. Physiological hyperglycemia had no effect on the triggering of TLESRs or basal LES pressure. In healthy human subjects, marked hyperglycemia increases the rate of TLESRs. Increase in the rate of TLESRs is independent of proximal gastric wall tension. Mechanisms underlying the effect remain to be determined. Hyperglycemia may be an important factor contributing to the increased esophageal acid exposure in patients with diabetes mellitus.

Integrity signals

Registry

Crossref · 10.1152/ajpgi.00383.2003

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62 of 62 references verified0 citation errors · 0 not checkable

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  • There is evidence that the increase in reflux esophagitis in type II diabetes occurs via elevated oxidative stress.

    “There is also evidence that the increase in reflux esophagitis in type II diabetes occurs via elevated oxidative stress [54], [55].”
  • Hyperglycemia triggers relaxation of the lower esophageal sphincter, thereby promoting acid reflux.

    “Hyperglycemia triggers relaxation of the lower esophageal sphincter [55], thereby promoting acid reflux.”
  • Over-consumption of sugars contributes to esophageal motor dysfunction, and in turn to the increase in acid reflux and esophagitis in individuals with metabolic disorders.

    “There is growing evidence that over-consumption of sugars contributes to esophageal motor dysfunction [54], [55], and in turn to the increase in acid reflux and esophagitis in individuals with metabolic disorders.”

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Authors
Zhang, Q., Horowitz, M., Rigda, R., Rayner, C., Worynski, A., & Holloway, R. H.
Affiliations
Royal Adelaide Hospital (AU)
Venue
American Journal of Physiology-Gastrointestinal and Liver Physiology
Published
2004-05
Volume
286
Issue
5
Pages
G797-G803
ISSN
  • 0193-1857 (ISSN-L)
  • 1522-1547
OpenAlex
W2003058178
Cited by
30
References
62
Citations by year
2021: 2 · 2020: 2 · 2019: 2 · 2017: 4 · 2016: 1 · 2015: 3 · 2014: 3 · 2013: 2 · 2012: 3
FWCI
1.31
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Physiology-Gastrointestinal and Liver Physiology (publishedVersion)
  • PubMed (publishedVersion)
  • Adelaide Research & Scholarship (AR&S) (University of Adelaide) (submittedVersion)
Topics
  • Health Sciences › Medicine › Gastroenterology › Gastroesophageal reflux and treatments
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
  • Health Sciences › Medicine › Surgery › Helicobacter pylori-related gastroenterology studies
Keywords
hyperglycemia, transient lower esophageal sphincter relaxations, gastroesophageal reflux, gastric distension, lower esophageal sphincter pressure, glucose clamp, diabetes mellitus, esophageal acid exposure
MeSH terms
Adult, Catheterization, Esophagogastric Junction, Female, Humans, Hyperglycemia, Male, Manometry, Middle Aged, Muscle Relaxation, Glucose Clamp Technique

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