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Anticardiolipin Antibodies in Children with Helicobacter pylori Infection
Serdar Umit Sarıcı1, Orhan Gursel1, Emin Kurekci1
1Department of Pediatrics, Gulhane Military Medical Academy and Medical Faculty, Ankara, Turkey.
Insights
Helicobacter pylori infection in children is linked to anticardiolipin (aCL) antibodies, which are associated with thrombosis. Eradicating H. pylori effectively reduces these aCL antibodies, suggesting a causal relationship.
Area of Science:
- Pediatric autoimmune disorders
- Infectious disease immunology
- Thrombosis and hemostasis
Background:
- Anticardiolipin (aCL) antibodies are linked to thrombotic events like stroke and myocardial infarction.
- Helicobacter pylori (H. pylori) infection is implicated in various diseases, including autoimmune conditions.
- A potential association between H. pylori infection and aCL antibodies warrants investigation, particularly in pediatric populations.
Purpose of the Study:
- To investigate the prevalence of aCL antibody positivity in children with H. pylori infection.
- To explore the relationship between H. pylori infection and anticardiolipin antibody levels.
- To assess the impact of H. pylori eradication therapy on aCL antibody levels in children.
Main Methods:
- Studied anticardiolipin antibody levels in 84 pediatric patients before and after H. pylori eradication therapy.
- Included a control group of 40 children for comparison.
- Measured aCL IgA, IgM, and IgG antibody levels using standardized assays.
Main Results:
- Pre-treatment aCL antibody levels (IgA, IgM, IgG) in children with H. pylori infection were significantly higher compared to post-treatment levels and controls.
- Post-treatment aCL antibody levels in the study group were not significantly different from those in the control group.
- Successful eradication of H. pylori led to a significant decrease in anticardiolipin antibody titers.
Conclusions:
- H. pylori infection can induce anticardiolipin antibody positivity in children.
- Eradication of H. pylori infection results in the disappearance of anticardiolipin antibodies.
- This suggests a causal link between H. pylori and aCL antibody production in pediatric patients.
Background:
Anticardiolipin (aCL) antibodies are associated with thrombosis and have an important role in the etiology of diseases such as stroke and myocardial infarction whose etiologies were based on thrombosis. H. pylori has been proposed to be responsible for the pathophysiology of some diseases including stroke, myocardial infarction, thrombosis, and autoimmune diseases. From this point of view, we hypothesized a possible relationship between H. pylori infection and aCL antibodies and initially aimed to determine the prevalence of aCL antibody positivity in children with H. pylori infection.
Materials And Methods:
Anticardiolipin antibodies were studied in 84 patients before and after eradication therapy and in a control group including 40 children.
Results:
The pretreatment aCL IgA (median 12.78 APL/mL), aCL IgM (median 21.60 MPL/mL), and aCL IgG antibody levels (median 14.22 GPL/mL) were significantly higher than those of post-treatment results (median 5.38 APL/mL, 7.02 MPL/mL, and 6.64 GPL/mL, respectively) and controls (median 5.90 APL/mL, 4.80 MPL/mL, and 4.81 GPL/mL, respectively). Anticardiolipin antibodies revealed no significant differences between the study group after therapy and the control group.
Conclusions:
In our particular experience, H. pylori can cause aCL antibody positivity in children and eradication of H. pylori provides the disappearance of these antibodies.
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