Suppression of Inflammatory Immune Responses in Celiac Disease by Experimental Hookworm Infection
2011

Hookworm Infection and Celiac Disease

Sample size: 20 publication Evidence: moderate

Author Information

Author(s): McSorley Henry J., Gaze Soraya, Daveson James, Jones Dianne, Anderson Robert P., Clouston Andrew, Ruyssers Nathalie E., Speare Richard, McCarthy James S., Engwerda Christian R., Croese John, Loukas Alex

Primary Institution: Queensland Tropical Health Alliance, James Cook University

Hypothesis

Hookworm infection may suppress gluten-induced inflammatory immune responses in celiac disease.

Conclusion

Hookworm infection suppressed the production of inflammatory cytokines in participants with celiac disease, suggesting a potential immunomodulatory effect.

Supporting Evidence

  • Basal production of inflammatory cytokines was suppressed in hookworm-infected participants.
  • Increased levels of regulatory T cells were observed in the circulation of participants.
  • Hookworm infection did not lead to significant reductions in symptom severity.

Takeaway

The study found that hookworms might help reduce inflammation in people with celiac disease, but it didn't completely fix the problem.

Methodology

The study involved a placebo-controlled, double-blinded trial with participants randomly assigned to hookworm infection or control.

Potential Biases

Potential biases related to the small sample size and the short duration of the trial.

Limitations

The study had a small sample size and the duration of hookworm infection may have been insufficient to observe significant clinical benefits.

Participant Demographics

Participants were healthy individuals with HLA-DQ2+ celiac disease on a strict gluten-free diet.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0024092

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