Detection of Helicobacter pylori in gastric biopsy and resection specimens
Aim. To compare the sensitivity of detecting H. pylori in gastric biopsy and resection specimens using modified Giemsa stain and immunohistochemistry, using a commercially available anti-H. pylori antibody (Dako, Denmark). Methods. Gastric antral biopsy specimens showing chronic gastritis (28 cases)...
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Military Health Department, Ministry of Defance, Serbia
2005-01-01
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doaj-90e8489e80544e6db6f9a7bece341d6d2020-11-25T00:37:43ZengMilitary Health Department, Ministry of Defance, SerbiaVojnosanitetski Pregled0042-84502005-01-01621394310.2298/VSP0501039BDetection of Helicobacter pylori in gastric biopsy and resection specimensBabić TatjanaBašić HakijaSelimović-Miljković BiljanaKocić BranislavaTasić Gordana D.Aim. To compare the sensitivity of detecting H. pylori in gastric biopsy and resection specimens using modified Giemsa stain and immunohistochemistry, using a commercially available anti-H. pylori antibody (Dako, Denmark). Methods. Gastric antral biopsy specimens showing chronic gastritis (28 cases) together with tissue blocks from gastrectomy specimens for duodenal ulcer (2 cases) were stained with modified Giemsa and immunoenzymatic alkaline phosphatase - anti-alkaline phosphatase (APAAP) method, and were carefully examined for the presence of H. pylori. Results. Using a modified Giemsa stain, the spiral shaped bacteria of H. pylori stained blue, were attached to the brush border of the gastric foveolar epithelial cells. However, the specificity of modified Giemsa stain depended on the morphological appearance of H. pylori. The specificity of immunostaining permitted detection of low numbers or even single organisms. In all cases bacteria were more prominent and easier to detect in immunostained preparations. H. pylori was identified in 22 (73.3%) of 30 sections stained with modified Giemsa stain, but it could be identified with greater frequency in sections stained with APAAP, in 27 (90%) of 30 sections. Conclusion. Immunohistochemical identification of H. pylori was better than Giemsa stain for detecting that organism.http://www.doiserbia.nb.rs/img/doi/0042-8450/2005/0042-84500501039B.pdfHelicobacter pyloribiopsystaining and labelingimmunohistochemistrysensitivity and specificity |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Babić Tatjana Bašić Hakija Selimović-Miljković Biljana Kocić Branislava Tasić Gordana D. |
spellingShingle |
Babić Tatjana Bašić Hakija Selimović-Miljković Biljana Kocić Branislava Tasić Gordana D. Detection of Helicobacter pylori in gastric biopsy and resection specimens Vojnosanitetski Pregled Helicobacter pylori biopsy staining and labeling immunohistochemistry sensitivity and specificity |
author_facet |
Babić Tatjana Bašić Hakija Selimović-Miljković Biljana Kocić Branislava Tasić Gordana D. |
author_sort |
Babić Tatjana |
title |
Detection of Helicobacter pylori in gastric biopsy and resection specimens |
title_short |
Detection of Helicobacter pylori in gastric biopsy and resection specimens |
title_full |
Detection of Helicobacter pylori in gastric biopsy and resection specimens |
title_fullStr |
Detection of Helicobacter pylori in gastric biopsy and resection specimens |
title_full_unstemmed |
Detection of Helicobacter pylori in gastric biopsy and resection specimens |
title_sort |
detection of helicobacter pylori in gastric biopsy and resection specimens |
publisher |
Military Health Department, Ministry of Defance, Serbia |
series |
Vojnosanitetski Pregled |
issn |
0042-8450 |
publishDate |
2005-01-01 |
description |
Aim. To compare the sensitivity of detecting H. pylori in gastric biopsy and resection specimens using modified Giemsa stain and immunohistochemistry, using a commercially available anti-H. pylori antibody (Dako, Denmark). Methods. Gastric antral biopsy specimens showing chronic gastritis (28 cases) together with tissue blocks from gastrectomy specimens for duodenal ulcer (2 cases) were stained with modified Giemsa and immunoenzymatic alkaline phosphatase - anti-alkaline phosphatase (APAAP) method, and were carefully examined for the presence of H. pylori. Results. Using a modified Giemsa stain, the spiral shaped bacteria of H. pylori stained blue, were attached to the brush border of the gastric foveolar epithelial cells. However, the specificity of modified Giemsa stain depended on the morphological appearance of H. pylori. The specificity of immunostaining permitted detection of low numbers or even single organisms. In all cases bacteria were more prominent and easier to detect in immunostained preparations. H. pylori was identified in 22 (73.3%) of 30 sections stained with modified Giemsa stain, but it could be identified with greater frequency in sections stained with APAAP, in 27 (90%) of 30 sections. Conclusion. Immunohistochemical identification of H. pylori was better than Giemsa stain for detecting that organism. |
topic |
Helicobacter pylori biopsy staining and labeling immunohistochemistry sensitivity and specificity |
url |
http://www.doiserbia.nb.rs/img/doi/0042-8450/2005/0042-84500501039B.pdf |
work_keys_str_mv |
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