Related Experiment Video

Updated: Jul 3, 2026

Mouse Models Of Helicobacter Infection And Gastric Pathologies
07:43

Mouse Models Of Helicobacter Infection And Gastric Pathologies

Published on: October 18, 2018

Potential relationship between Helicobacter pylori and ischemic heart disease: any pathogenic model?

M Berrutti1, R Pellicano, S Fagoonee

  • 1Department of Gastro-Hepatology, S. Giovanni Battista Hospital (Molinette), Turin, Italy.

Panminerva Medica
|July 9, 2008
PubMed

Insights

Helicobacter pylori (H. pylori) infection may contribute to ischemic heart disease (IHD) through indirect inflammatory pathways or direct effects on platelets. However, H. pylori is not the sole cause of IHD, necessitating a comprehensive approach.

Area of Science:

  • Cardiology
  • Gastroenterology
  • Infectious Diseases

Background:

  • Helicobacter pylori (H. pylori) is a known cause of gastroduodenal diseases.
  • Emerging evidence links H. pylori infection to extragastric conditions, including ischemic heart disease (IHD).

Purpose of the Study:

  • To explore the potential pathogenic mechanisms connecting H. pylori infection to the development of IHD.
  • To evaluate the indirect and direct roles of H. pylori in IHD pathogenesis.

Main Methods:

  • Review of existing literature on H. pylori and IHD.
  • Analysis of proposed indirect mechanisms involving chronic inflammation and cytokine elevation.
  • Consideration of direct mechanisms, such as H. pylori-induced platelet aggregation.

Main Results:

  • Direct detection of H. pylori DNA in coronary arteries is rare, suggesting an indirect pathogenic pathway is more likely.
  • Chronic H. pylori infection may lead to elevated bloodstream cytokine levels, contributing to inflammation associated with IHD.
  • Certain H. pylori strains demonstrate the ability to induce platelet aggregation, potentially playing a role in acute IHD events.

Conclusions:

  • Ischemic heart disease (IHD) is a multifactorial condition, and H. pylori is not the sole causative agent.
  • Establishing H. pylori or other infections as definitive causes of IHD requires a multidisciplinary investigative approach.

More Related Videos

High Resolution Electron Microscopy of the Helicobacter pylori Cag Type IV Secretion System Pili Produced in Varying Conditions of Iron Availability09:05

High 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: Pathophysiology01:26

Gastritis II: Pathophysiology

The pathophysiology of gastritis begins with the colonization of the stomach lining by Helicobacter pylori (H. pylori). This bacterium spreads mainly via the oral-oral route through saliva or shared utensils, and can also be transmitted in overcrowded or unhygienic environments through contaminated water, despite its brief survival outside the body.ColonizationOnce ingested, H. pylori enters the stomach and begins colonization by navigating through the mucus layer lining the stomach wall. It...
Pathophysiology of Peptic Ulcer Disease: Injurious Factors01:22

Pathophysiology of Peptic Ulcer Disease: Injurious Factors

Peptic ulcers are sores on the stomach's inner lining and the upper small intestine, which are the result of disruptions in the mucosal layer that houses parietal cells which produce gastric acid, and chief cells which secrete pepsinogen.
In the antrum region, G cells secrete the gastrin hormone that binds to gastrin-cholecystokinin-B (CCK2) receptors on parietal and enterochromaffin-like (ECL) cells in the fundic glands. Simultaneously, the vagus nerve releases acetylcholine, which binds to M3...
Peptic Ulcer01:27

Peptic Ulcer

Peptic ulcers are erosive lesions of the gastric or duodenal lining, most commonly caused by Helicobacter pylori infection. This Gram-negative, helical bacterium has adapted to survive the stomach’s acidic environment by producing urease, which converts urea into ammonia and carbon dioxide. The ammonia neutralizes gastric acid in the bacterium’s immediate environment, allowing colonization of the gastric mucosa. H. pylori attaches to mucus-secreting epithelial cells, penetrates the mucus...
Peptic Ulcer Disease II: Pathophysiology01:24

Peptic Ulcer Disease II: Pathophysiology

Peptic ulcer disease develops when protective mechanisms of the gastrointestinal mucosa are overwhelmed by harmful factors, leading to localized erosions in the stomach or proximal duodenum. The main causes are Helicobacter pylori infection and chronic use of nonsteroidal anti-inflammatory drugs (NSAIDs).Helicobacter pylori–Induced InjuryBacterial Adaptation and Colonization:H. pylori is a spiral, Gram-negative bacterium adapted to the acidic stomach. and transmitted through oral-oral or...
Peptic Ulcer Disease II: Pathophysiology01:28

Peptic Ulcer Disease II: Pathophysiology

Peptic Ulcer Disease (PUD) is characterized by the development of ulcers in the stomach or duodenal mucosa. Its pathophysiology is complex, involving a balance between damaging and protective elements.
Damaging agents such as Helicobacter pylori, gastric acid, pepsin, and nonsteroidal anti-inflammatory drugs (NSAIDs) can weaken the mucosal defense, allowing hydrogen ions to infiltrate back and harm epithelial cells.
Peptic Ulcer Disease I: Introduction01:30

Peptic Ulcer Disease I: Introduction

Peptic Ulcer Disease (PUD) is characterized by mucosal excavation in the esophagus, stomach, pylorus, or duodenum. It can manifest as acute or chronic based on the extent and duration of mucosal involvement.
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...