Related Experiment Video
Updated: Sep 30, 2026

Detection of Helicobacter pylori Infection and Antibiotic Resistance via Stool Quantitative Polymerase Chain Reaction Analysis
Published on: May 16, 2025
[Epidemiological aspects of Helicobacter pylori infection in childhood and adolescence]
Marcia S Kodaira1, Ana Maria de Ulhôa Escobar, Sandra Grisi
1Instituto da Criança, Hospital das Clínicas, Universidade de São Paulo, Brazil. marciaskodaira@uol.com.br
Abstract:
The scope of the review is to study the epidemiological aspects of Helicobacter pylori infection and its importance during childhood and adolescence, focusing on incidence, prevalence, transmission and risk factors. The study's references included the following databases: LILACS (PAHO/ Bireme), MEDLINE, the US's National Library of Medicine and the thesis developed at University of São Paulo for the period 1983 to 1999. It was noted that Helicobacter pylori infection is mainly acquired during childhood, age-related prevalence, main risk factors are associated to low socioeconomic status, and its transmission mechanism remains unclear.
Related Concept Videos
Peptic Ulcer
Gastritis II: Pathophysiology
Treating Helicobacter pylori in Peptic Ulcers: Antimicrobial Therapy
Peptic Ulcer Disease II: Pathophysiology
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.
Pathophysiology of Peptic Ulcer Disease: Injurious Factors
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...
