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Related Experiment Videos

Serum pepsinogen I elevation in cigarette smokers.

A Malesci1, M Basilico, M Bersani

  • 1Institute of Internal Medicine, University of Milan, Italy.

Scandinavian Journal of Gastroenterology
|June 1, 1988
PubMed
Summary

Smoking increases serum pepsinogen I (sPG-I) in individuals with duodenal ulcers, suggesting enhanced pepsin secretion contributes to ulcer development. This effect was not observed in gastric ulcer patients.

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Area of Science:

  • Gastroenterology
  • Clinical Medicine
  • Biochemistry

Background:

  • Serum pepsinogen I (sPG-I) is a biomarker for gastric mucosal function.
  • Cigarette smoking is a known risk factor for peptic ulcer disease.
  • The specific impact of smoking on sPG-I levels in relation to different ulcer types requires further elucidation.

Purpose of the Study:

  • To investigate the relationship between smoking habits and serum pepsinogen I (sPG-I) levels in patients undergoing upper GI endoscopy.
  • To determine if smoking affects sPG-I levels differently in patients with duodenal ulcers, gastric ulcers, or no ulcers.
  • To explore the potential role of augmented pepsin secretion in the association between smoking and duodenal ulcers.

Main Methods:

  • Serum pepsinogen I (sPG-I) levels were measured in 269 patients.

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  • Patients were classified based on endoscopic diagnosis (duodenal ulcer, gastric ulcer, ulcer-free), gastric mucosal histology, and smoking status.
  • Statistical analysis was performed to compare sPG-I levels between smokers and non-smokers within each diagnostic group.

    • Main Results:

    • Smokers with duodenal ulcers and ulcer-free smokers exhibited significantly higher sPG-I levels compared to their non-smoking counterparts.
    • No significant difference in sPG-I levels was found between smokers and non-smokers with gastric ulcers.
    • In duodenal ulcer smokers, the increase in sPG-I was dose-dependent on cigarette consumption and not solely attributable to gastritis.

    Conclusions:

    • Smoking is associated with elevated sPG-I levels in duodenal ulcer patients, independent of gastritis.
    • The findings suggest that smoking may enhance pepsin secretory capacity, potentially contributing to the etiology of duodenal ulcers.
    • Further research is warranted to confirm the role of smoking-induced pepsinogen hypersecretion in duodenal ulcer pathogenesis.