Evaluation of estrogen receptor expression in low-grade and high-grade astrocytomas
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , |
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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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 |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-42302018001201129 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-42302018001201129 |
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 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
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) instname:Associação Médica Brasileira (AMB) instacron:AMB |
instname_str |
Associação Médica Brasileira (AMB) |
instacron_str |
AMB |
institution |
AMB |
reponame_str |
Revista da Associação Médica Brasileira (Online) |
collection |
Revista da Associação Médica Brasileira (Online) |
repository.name.fl_str_mv |
Revista da Associação Médica Brasileira (Online) - Associação Médica Brasileira (AMB) |
repository.mail.fl_str_mv |
||ramb@amb.org.br |
_version_ |
1754212833793409024 |