Related Experiment Video
Updated: Apr 29, 2026

Retinal and Choroidal Thickness Changes in Populations with Helicobacter pylori Infection by Swept-Source Optical Coherence Tomography
Published on: November 1, 2024
Review article: Associations between Helicobacter pylori and obesity--an ecological study
1Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Woolloongabba, Qld, Australia; Faculty of Medicine and Biomedicine & Faculty of Health and Behavioural Sciences, University of Queensland, St Lucia, Qld, Australia.
The prevalence of Helicobacter pylori infection is inversely correlated with obesity and overweight rates in developed nations. Declining H. pylori rates may contribute to the rising obesity epidemic in Western countries.
Area of Science:
- Epidemiology
- Public Health
- Microbiology
Background:
- Emerging debate exists regarding the impact of Helicobacter pylori infection on body mass index (BMI).
- A recent study indicated weight gain following H. pylori eradication compared to untreated infections.
Purpose of the Study:
- To investigate the association between H. pylori colonization and the prevalence of overweight and obesity.
- Focus on developed countries with high GDP.
Main Methods:
- Literature search for studies reporting H. pylori and obesity prevalence rates.
- Inclusion criteria: random population samples (>100 subjects), developed countries (GDP >$25,000/person/year).
- Nonparametric tests used to analyze the correlation between H. pylori and overweight/obesity rates.
Main Results:
- Data from 49 studies across Europe, Japan, the US, and Australia were analyzed.
- Mean H. pylori prevalence was 44.1%; mean obesity and overweight rates were 46.6% and 14.2%, respectively.
- A significant inverse correlation (r=0.29, P<0.001) was found between H. pylori prevalence and rates of overweight/obesity.
Conclusions:
- An inverse correlation exists between H. pylori prevalence and overweight/obesity rates in developed countries.
- The observed decrease in H. pylori colonization may be causally linked to the current obesity epidemic in the Western world.
More Related Videos
05:23Gastric Mucosa Quantitative Polymerase Chain Reaction Analysis for Detecting Helicobacter pylori and Antibiotic Resistance
Published on: March 7, 2025
09:05High Resolution Electron Microscopy of the Helicobacter pylori Cag Type IV Secretion System Pili Produced in Varying Conditions of Iron Availability
Published on: November 21, 2014
Related Concept Videos
Gastritis II: Pathophysiology
Peptic Ulcer
Obesity
Peptic Ulcer Disease III: Clinical Manifestations and Diagnostic Studies
Few clinical manifestations differentiate gastric ulcers from duodenal ulcers. Distinctions in the location, timing, and pain relief are crucial for healthcare providers in differentiating between gastric and duodenal ulcers during clinical assessments.
Peptic Ulcer Disease I: Introduction
An acute ulcer, marked by superficial erosion and minimal inflammation, swiftly resolves upon identifying and addressing the underlying cause. In contrast, a chronic ulcer persists, potentially eroding through the muscular wall and forming fibrous tissue.
Peptic ulcers can also be...
Peptic Ulcer Disease II: Pathophysiology