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Local allergic reac...
Local allergic reaction in food-hypersensitive adults despite a lack of systemic food-specific IgE
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- Lin, Xiao Ping (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för invärtesmedicin, Avdelningen för reumatologi och inflammationsforskning,Institute of Internal Medicine, Dept of Rheumatology and Inflammation Research
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- Magnusson, Jenny, 1970 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för invärtesmedicin, Avdelningen för lungmedicin och allergologi,Institutionen för invärtesmedicin, Avdelningen för reumatologi och inflammationsforskning,Institute of Internal Medicine, Dept of Respiratory Medicine/Allergology,Institute of Internal Medicine, Dept of Rheumatology and Inflammation Research
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Ahlstedt, S. (författare)
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- Dahlman-Höglund, Anna, 1964 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för samhällsmedicin, Avdelningen för miljömedicin,Institute of Community Medicine, Dept of Primary Health Care
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- Hanson, Lars Åke, 1934 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för laboratoriemedicin, Avdelningen för klinisk immunologi,Institute of Laboratory Medicine, Dept of Clinical Immunology
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Magnusson, O. (författare)
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- Bengtsson, Ulf, 1944 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för invärtesmedicin, Avdelningen för lungmedicin och allergologi,Institute of Internal Medicine, Dept of Respiratory Medicine/Allergology
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- Telemo, Esbjörn, 1953 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för invärtesmedicin, Avdelningen för reumatologi och inflammationsforskning,Institute of Internal Medicine, Dept of Rheumatology and Inflammation Research
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(creator_code:org_t)
- 2002
- 2002
- Engelska.
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Ingår i: J Allergy Clin Immunol. ; 109:5 Pt 1
- Relaterad länk:
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https://gup.ub.gu.se...
Abstract
Ämnesord
Stäng
- BACKGROUND: Objective tools are lacking for the diagnosis of local gastrointestinal inflammatory reactions in skin prick test (SPT)-negative and serum IgE antibody (s-IgE Ab)-negative patients with suspected food allergy. OBJECTIVE: The purpose of this investigation was to evaluate the presence of eosinophils, T cells, local IgE-bearing cells, IL-4, and IFN-gamma in small intestinal biopsy specimens from adult SPT-negative/s-IgE Ab-negative patients with food allergy during symptomatic and nonsymptomatic periods. METHODS: Fourteen patients with food allergy-related gastrointestinal symptoms confirmed by double-blinded, placebo-controlled food challenge (DBPCFC) were investigated. Eleven of the patients were SPT-negative and s-IgE Ab-negative. Sex- and age-matched healthy volunteers were used as controls. Duodenal biopsies were studied with immunostaining through use of a panel of mouse monoclonal antibodies specific for eosinophils, CD3, CD4, CD8, IgE, IL-4, and IFN-gamma. RESULTS: Significant increases in numbers of MBP(+) eosinophils, IgE-bearing cells, and T cells were found in the duodenal mucosa of the patients when they were symptomatic in comparison with when they were asymptomatic and in comparison with healthy controls. Numbers of IL-4(+) cells were increased and numbers of IFN-gamma(+) cells were reduced in the patients when they were symptomatic in comparison with when they were asymptomatic and in comparison with the controls. There were no differences in total s-IgE levels between any of the groups. CONCLUSION: A significant correlation was found between the appearance of symptoms of food hypersensitivity and the duodenal presence of IgE-bearing cells, activated eosinophils, and T cells in patients with negative SPT results and negative s-IgE Ab to the offending food. We suggest that a localized IgE-mediated response caused the gastrointestinal symptoms seen in these patients.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine (hsv//eng)
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Lin, Xiao Ping
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Magnusson, Jenny ...
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Ahlstedt, S.
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Dahlman-Höglund, ...
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Hanson, Lars Åke ...
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Magnusson, O.
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Bengtsson, Ulf, ...
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Telemo, Esbjörn, ...
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Göteborgs universitet