Can the Response to Eradication Therapy in Helicobacter pylori Infection be Predicted?

The failure to eradicate Helicobacter pylori infection with antibiotic therapy has become a major clinical problem, not entirely accounted for by either poor compliance or antibiotic resistance. Recognition that failed eradication is one outcome of the host-parasite relationship focuses attention on...

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Main Authors: Robert Clancy, Thomas Borody, Zhigang Ren, Gerald Pang
Format: Article
Language:English
Published: Wiley 2003-01-01
Series:Canadian Journal of Gastroenterology
Online Access:http://dx.doi.org/10.1155/2003/585862
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author Robert Clancy
Thomas Borody
Zhigang Ren
Gerald Pang
author_facet Robert Clancy
Thomas Borody
Zhigang Ren
Gerald Pang
author_sort Robert Clancy
collection DOAJ
description The failure to eradicate Helicobacter pylori infection with antibiotic therapy has become a major clinical problem, not entirely accounted for by either poor compliance or antibiotic resistance. Recognition that failed eradication is one outcome of the host-parasite relationship focuses attention on impaired host protection as a determinant of nonresponse to antibiotics. A secreted interleukin (IL)-4 whole blood assay was developed to determine whether persistent infection was contributed to by impaired cytokine responses. The blood assay was shown to correlate well with mucosal organ cultures. Significantly lower levels of IL-4 were detected in the whole blood assays in 11 subjects with failed eradication compared with subjects with successful eradication (P<0.05). This latter group underwent a Th1 to Th0 ‘switch’, which appears to be important to successful eradication. Detection of subjects at risk for failing to eradicate infection with standard combination therapy, by virtue of low secreted IL-4 in whole blood cultures, may have clinical value.
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series Canadian Journal of Gastroenterology
spelling doaj-art-b9e2f526193d401ab398dc20c6dff8c52025-08-20T02:19:19ZengWileyCanadian Journal of Gastroenterology0835-79002003-01-0117Suppl B58B61B10.1155/2003/585862Can the Response to Eradication Therapy in Helicobacter pylori Infection be Predicted?Robert Clancy0Thomas Borody1Zhigang Ren2Gerald Pang3Discipline of Immunology and Microbiology, University of Newcastle, Newcastle, AustraliaThe Centre for Digestive Disease, Five Dock, New South Wales, AustraliaVasse Research Institute, Newcastle, AustraliaDiscipline of Immunology and Microbiology, University of Newcastle, Newcastle, AustraliaThe failure to eradicate Helicobacter pylori infection with antibiotic therapy has become a major clinical problem, not entirely accounted for by either poor compliance or antibiotic resistance. Recognition that failed eradication is one outcome of the host-parasite relationship focuses attention on impaired host protection as a determinant of nonresponse to antibiotics. A secreted interleukin (IL)-4 whole blood assay was developed to determine whether persistent infection was contributed to by impaired cytokine responses. The blood assay was shown to correlate well with mucosal organ cultures. Significantly lower levels of IL-4 were detected in the whole blood assays in 11 subjects with failed eradication compared with subjects with successful eradication (P<0.05). This latter group underwent a Th1 to Th0 ‘switch’, which appears to be important to successful eradication. Detection of subjects at risk for failing to eradicate infection with standard combination therapy, by virtue of low secreted IL-4 in whole blood cultures, may have clinical value.http://dx.doi.org/10.1155/2003/585862
spellingShingle Robert Clancy
Thomas Borody
Zhigang Ren
Gerald Pang
Can the Response to Eradication Therapy in Helicobacter pylori Infection be Predicted?
Canadian Journal of Gastroenterology
title Can the Response to Eradication Therapy in Helicobacter pylori Infection be Predicted?
title_full Can the Response to Eradication Therapy in Helicobacter pylori Infection be Predicted?
title_fullStr Can the Response to Eradication Therapy in Helicobacter pylori Infection be Predicted?
title_full_unstemmed Can the Response to Eradication Therapy in Helicobacter pylori Infection be Predicted?
title_short Can the Response to Eradication Therapy in Helicobacter pylori Infection be Predicted?
title_sort can the response to eradication therapy in helicobacter pylori infection be predicted
url http://dx.doi.org/10.1155/2003/585862
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AT thomasborody cantheresponsetoeradicationtherapyinhelicobacterpyloriinfectionbepredicted
AT zhigangren cantheresponsetoeradicationtherapyinhelicobacterpyloriinfectionbepredicted
AT geraldpang cantheresponsetoeradicationtherapyinhelicobacterpyloriinfectionbepredicted