Evaluation of estrogen receptor expression in low-grade and high-grade astrocytomas

Detalhes bibliográficos
Autor(a) principal: Tavares,Cléciton Braga
Data de Publicação: 2018
Outros Autores: Gomes-Braga,Francisca das Chagas Sheyla, Sousa,Emerson Brandão, Borges,Umbelina Soares, Escórcio-Dourado,Carla Solange, Silva-Sampaio,João Paulo da, Silva,Benedito Borges da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista da Associação Médica Brasileira (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-42302018001201129
Resumo: SUMMARY OBJECTIVE: This study aims to compare estrogen receptor expression between low and high-grade astrocytomas. METHOD: A study using paraffin blocks of glial tumors from the Anatomy Pathology archives of São Marcos Hospital was carried out and began after approval by the Review Board of the Federal University of Piaui. Specimens were histochemically marked with an anti-ER alpha antibody. Brown-stained nuclei were considered positive, regardless of reaction intensity. Data were statistically analyzed using the Mann-Whitney test and Spearman's correlation. Statistical significance was established at p<0.05. RESULTS: The mean percentage of nuclei stained with anti-ER alpha in low-and high-grade astrocytomas was 0.04 and zero, respectively, while Spearman's correlation showed a strong negative association between low and high-grade tumors (p<0.001) and (r= −0.67), respectively. CONCLUSION: In the current study, estrogen receptor expression was positive only in low-grade astrocytomas and nil in high-grade astrocytomas, showing that ER expression declines with the grade of tumor malignancy.
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spelling Evaluation of estrogen receptor expression in low-grade and high-grade astrocytomasAstrocytomaGliomaGlioblastomaEstrogen receptor betaEstrogen receptor alphaSUMMARY OBJECTIVE: This study aims to compare estrogen receptor expression between low and high-grade astrocytomas. METHOD: A study using paraffin blocks of glial tumors from the Anatomy Pathology archives of São Marcos Hospital was carried out and began after approval by the Review Board of the Federal University of Piaui. Specimens were histochemically marked with an anti-ER alpha antibody. Brown-stained nuclei were considered positive, regardless of reaction intensity. Data were statistically analyzed using the Mann-Whitney test and Spearman's correlation. Statistical significance was established at p<0.05. RESULTS: The mean percentage of nuclei stained with anti-ER alpha in low-and high-grade astrocytomas was 0.04 and zero, respectively, while Spearman's correlation showed a strong negative association between low and high-grade tumors (p<0.001) and (r= −0.67), respectively. CONCLUSION: In the current study, estrogen receptor expression was positive only in low-grade astrocytomas and nil in high-grade astrocytomas, showing that ER expression declines with the grade of tumor malignancy.Associação Médica Brasileira2018-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-42302018001201129Revista da Associação Médica Brasileira v.64 n.12 2018reponame:Revista da Associação Médica Brasileira (Online)instname:Associação Médica Brasileira (AMB)instacron:AMB10.1590/1806-9282.64.12.1129info:eu-repo/semantics/openAccessTavares,Cléciton BragaGomes-Braga,Francisca das Chagas SheylaSousa,Emerson BrandãoBorges,Umbelina SoaresEscórcio-Dourado,Carla SolangeSilva-Sampaio,João Paulo daSilva,Benedito Borges daeng2018-12-04T00:00:00Zoai:scielo:S0104-42302018001201129Revistahttps://ramb.amb.org.br/ultimas-edicoes/#https://old.scielo.br/oai/scielo-oai.php||ramb@amb.org.br1806-92820104-4230opendoar:2018-12-04T00:00Revista da Associação Médica Brasileira (Online) - Associação Médica Brasileira (AMB)false
dc.title.none.fl_str_mv Evaluation of estrogen receptor expression in low-grade and high-grade astrocytomas
title Evaluation of estrogen receptor expression in low-grade and high-grade astrocytomas
spellingShingle Evaluation of estrogen receptor expression in low-grade and high-grade astrocytomas
Tavares,Cléciton Braga
Astrocytoma
Glioma
Glioblastoma
Estrogen receptor beta
Estrogen receptor alpha
title_short Evaluation of estrogen receptor expression in low-grade and high-grade astrocytomas
title_full Evaluation of estrogen receptor expression in low-grade and high-grade astrocytomas
title_fullStr Evaluation of estrogen receptor expression in low-grade and high-grade astrocytomas
title_full_unstemmed Evaluation of estrogen receptor expression in low-grade and high-grade astrocytomas
title_sort Evaluation of estrogen receptor expression in low-grade and high-grade astrocytomas
author Tavares,Cléciton Braga
author_facet Tavares,Cléciton Braga
Gomes-Braga,Francisca das Chagas Sheyla
Sousa,Emerson Brandão
Borges,Umbelina Soares
Escórcio-Dourado,Carla Solange
Silva-Sampaio,João Paulo da
Silva,Benedito Borges da
author_role author
author2 Gomes-Braga,Francisca das Chagas Sheyla
Sousa,Emerson Brandão
Borges,Umbelina Soares
Escórcio-Dourado,Carla Solange
Silva-Sampaio,João Paulo da
Silva,Benedito Borges da
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Tavares,Cléciton Braga
Gomes-Braga,Francisca das Chagas Sheyla
Sousa,Emerson Brandão
Borges,Umbelina Soares
Escórcio-Dourado,Carla Solange
Silva-Sampaio,João Paulo da
Silva,Benedito Borges da
dc.subject.por.fl_str_mv Astrocytoma
Glioma
Glioblastoma
Estrogen receptor beta
Estrogen receptor alpha
topic Astrocytoma
Glioma
Glioblastoma
Estrogen receptor beta
Estrogen receptor alpha
description SUMMARY OBJECTIVE: This study aims to compare estrogen receptor expression between low and high-grade astrocytomas. METHOD: A study using paraffin blocks of glial tumors from the Anatomy Pathology archives of São Marcos Hospital was carried out and began after approval by the Review Board of the Federal University of Piaui. Specimens were histochemically marked with an anti-ER alpha antibody. Brown-stained nuclei were considered positive, regardless of reaction intensity. Data were statistically analyzed using the Mann-Whitney test and Spearman's correlation. Statistical significance was established at p<0.05. RESULTS: The mean percentage of nuclei stained with anti-ER alpha in low-and high-grade astrocytomas was 0.04 and zero, respectively, while Spearman's correlation showed a strong negative association between low and high-grade tumors (p<0.001) and (r= −0.67), respectively. CONCLUSION: In the current study, estrogen receptor expression was positive only in low-grade astrocytomas and nil in high-grade astrocytomas, showing that ER expression declines with the grade of tumor malignancy.
publishDate 2018
dc.date.none.fl_str_mv 2018-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-42302018001201129
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1806-9282.64.12.1129
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.publisher.none.fl_str_mv Associação Médica Brasileira
publisher.none.fl_str_mv Associação Médica Brasileira
dc.source.none.fl_str_mv Revista da Associação Médica Brasileira v.64 n.12 2018
reponame:Revista da Associação Médica Brasileira (Online)
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reponame_str Revista da Associação Médica Brasileira (Online)
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