Effect of hookworm infection on wheat challenge in celiac disease--a randomised double-blinded placebo controlled trial.
The association between hygiene and prevalence of autoimmune disease has been attributed in part to enteric helminth infection. A pilot study of experimental infection with the hookworm Necator americanus was undertaken among a group of otherwise healthy people with celiac disease to test the potent...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2011-03-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC3050888?pdf=render |
| _version_ | 1818452288082018304 |
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| author | A James Daveson Dianne M Jones Soraya Gaze Henry McSorley Andrew Clouston Andrew Pascoe Sharon Cooke Richard Speare Graeme A Macdonald Robert Anderson James S McCarthy Alex Loukas John Croese |
| author_facet | A James Daveson Dianne M Jones Soraya Gaze Henry McSorley Andrew Clouston Andrew Pascoe Sharon Cooke Richard Speare Graeme A Macdonald Robert Anderson James S McCarthy Alex Loukas John Croese |
| author_sort | A James Daveson |
| collection | DOAJ |
| description | The association between hygiene and prevalence of autoimmune disease has been attributed in part to enteric helminth infection. A pilot study of experimental infection with the hookworm Necator americanus was undertaken among a group of otherwise healthy people with celiac disease to test the potential of the helminth to suppress the immunopathology induced by gluten.In a 21-week, double-blinded, placebo-controlled study, we explored the effects of N. americanus infection in 20 healthy, helminth-naïve adults with celiac disease well controlled by diet. Staged cutaneous inoculations with 10 and 5 infective 3(rd) stage hookworm larvae or placebo were performed at week-0 and -12 respectively. At week-20, a five day oral wheat challenge equivalent to 16 grams of gluten per day was undertaken. Primary outcomes included duodenal Marsh score and quantification of the immunodominant α-gliadin peptide (QE65)-specific systemic interferon-γ-producing cells by ELISpot pre- and post-wheat challenge.Enteric colonisation with hookworm established in all 10 cases, resulting in transiently painful enteritis in 5. Chronic infection was asymptomatic, with no effect on hemoglobin levels. Although some duodenal eosinophilia was apparent, hookworm-infected mucosa retained a healthy appearance. In both groups, wheat challenge caused deterioration in both primary and several secondary outcomes.Experimental N. americanus infection proved to be safe and enabled testing its effect on a range of measures of the human autoimmune response. Infection imposed no obvious benefit on pathology.ClinicalTrials.gov NCT00671138. |
| first_indexed | 2024-12-14T21:20:42Z |
| format | Article |
| id | doaj.art-7459a26171e14854b955a7713bb26b59 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-14T21:20:42Z |
| publishDate | 2011-03-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-7459a26171e14854b955a7713bb26b592022-12-21T22:46:57ZengPublic Library of Science (PLoS)PLoS ONE1932-62032011-03-0163e1736610.1371/journal.pone.0017366Effect of hookworm infection on wheat challenge in celiac disease--a randomised double-blinded placebo controlled trial.A James DavesonDianne M JonesSoraya GazeHenry McSorleyAndrew CloustonAndrew PascoeSharon CookeRichard SpeareGraeme A MacdonaldRobert AndersonJames S McCarthyAlex LoukasJohn CroeseThe association between hygiene and prevalence of autoimmune disease has been attributed in part to enteric helminth infection. A pilot study of experimental infection with the hookworm Necator americanus was undertaken among a group of otherwise healthy people with celiac disease to test the potential of the helminth to suppress the immunopathology induced by gluten.In a 21-week, double-blinded, placebo-controlled study, we explored the effects of N. americanus infection in 20 healthy, helminth-naïve adults with celiac disease well controlled by diet. Staged cutaneous inoculations with 10 and 5 infective 3(rd) stage hookworm larvae or placebo were performed at week-0 and -12 respectively. At week-20, a five day oral wheat challenge equivalent to 16 grams of gluten per day was undertaken. Primary outcomes included duodenal Marsh score and quantification of the immunodominant α-gliadin peptide (QE65)-specific systemic interferon-γ-producing cells by ELISpot pre- and post-wheat challenge.Enteric colonisation with hookworm established in all 10 cases, resulting in transiently painful enteritis in 5. Chronic infection was asymptomatic, with no effect on hemoglobin levels. Although some duodenal eosinophilia was apparent, hookworm-infected mucosa retained a healthy appearance. In both groups, wheat challenge caused deterioration in both primary and several secondary outcomes.Experimental N. americanus infection proved to be safe and enabled testing its effect on a range of measures of the human autoimmune response. Infection imposed no obvious benefit on pathology.ClinicalTrials.gov NCT00671138.http://europepmc.org/articles/PMC3050888?pdf=render |
| spellingShingle | A James Daveson Dianne M Jones Soraya Gaze Henry McSorley Andrew Clouston Andrew Pascoe Sharon Cooke Richard Speare Graeme A Macdonald Robert Anderson James S McCarthy Alex Loukas John Croese Effect of hookworm infection on wheat challenge in celiac disease--a randomised double-blinded placebo controlled trial. PLoS ONE |
| title | Effect of hookworm infection on wheat challenge in celiac disease--a randomised double-blinded placebo controlled trial. |
| title_full | Effect of hookworm infection on wheat challenge in celiac disease--a randomised double-blinded placebo controlled trial. |
| title_fullStr | Effect of hookworm infection on wheat challenge in celiac disease--a randomised double-blinded placebo controlled trial. |
| title_full_unstemmed | Effect of hookworm infection on wheat challenge in celiac disease--a randomised double-blinded placebo controlled trial. |
| title_short | Effect of hookworm infection on wheat challenge in celiac disease--a randomised double-blinded placebo controlled trial. |
| title_sort | effect of hookworm infection on wheat challenge in celiac disease a randomised double blinded placebo controlled trial |
| url | http://europepmc.org/articles/PMC3050888?pdf=render |
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