Related Experiment Video
Updated: Sep 26, 2026

COVID-19 Seroprevalence Test for IgG Antibody Levels Among Healthy Donors Across Different Pandemic Phases in Jeddah
Published on: June 24, 2025
[Association between chronic gastritis in childhood, Helicobacter pylori and ABO blood groups]
Esad Brigić1, Selma Terzić, Ermina Iljazović
1Pedijatrijska klinika UKC Tuzla.
Insights
This study investigated the link between chronic gastritis, Helicobacter pylori infection, and ABO blood groups in children. Blood groups A and O were found to be more prevalent in children with gastritis, particularly those with H. pylori infection.
Area of Science:
- Pediatric Gastroenterology
- Immunogenetics
Background:
- Gastritis, an inflammation of the gastric lining, has multiple causes, with Helicobacter pylori infection being the most common.
- The association between ABO blood groups and various diseases is an area of ongoing research, with limited understanding for conditions beyond hemolytic disease of the newborn.
Purpose of the Study:
- To explore the relationship between chronic gastritis in childhood, Helicobacter pylori infection status, and ABO blood group phenotypes.
Main Methods:
- A cohort of 68 pediatric patients was analyzed.
- Patients were tested for Helicobacter pylori infection.
- ABO blood group phenotyping was performed.
Main Results:
- Out of 68 patients, 57 (83%) were positive for Helicobacter pylori (Hp+).
- Thirty patients were diagnosed with chronic gastritis, of whom 22 (73%) were Hp+ and 8 (27%) were Hp-.
- Blood groups A and O showed a higher prevalence among patients with gastritis compared to other blood groups.
Conclusions:
- The findings suggest a potential association between ABO blood groups, specifically A and O, and the occurrence of chronic gastritis in children.
- Helicobacter pylori infection is a significant factor in childhood gastritis, and its interaction with blood groups warrants further investigation.
Abstract:
Gastritis can be defined in the simplest way such as inflammation of gastric mucous membrane. There are numerous causes of gastritis and the most often is Helicobacter pylori infection. Studying of the blood groups also includes the question of their connection with certain diseases. Up to date it has been explained the role that blood groups have in haemolytic disease of newborn infant but for other diseases we know little, it is insufficient or we know nothing. The aim of this work was to analyze connection of chronic gastritis in childhood, Helicobacter pylori and ABO blood groups. It has been treated 68 patients out of which 57 (83%) were Helicobacter pylori positive (Hp+) and 11 (17%) were Helicobacter pylori negative (Hp-). Thirty patients had chronic gastritis out of which 22 (73%) were Hp+ and 8 (27%) Hp-. It prevailed blood group A and O, comparing with other blood group phenotypes connected with gastritis.
Related Concept Videos
The ABO Blood Group
Antigens in the ABO Blood Group System
Antigens are substances that can trigger an immune response, leading to the production of antibodies. In the ABO blood group system,...
Gastritis II: Pathophysiology
Peptic Ulcer
Gastritis-II: Pathophysiology
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
In chronic gastritis, persistent or repeated insults lead to chronic inflammatory changes and, eventually, thinning or atrophy of the gastric tissue.
Gastritis can stem from various causes, each...
Blood Transfusion and Agglutination
History
The history of blood transfusion dates back to the 17th century, when early attempts were made in animals. In 1818 James Blundell, a British doctor, performed the first successful human blood transfusion. Later in 1900, Karl...
Rh Blood Group