Mutations in the vitamin D receptor gene in four patients with hereditary 1,25-dihydroxyvitamin D-resistant rickets

Detalhes bibliográficos
Autor(a) principal: Macedo,Luciana Cosentino de
Data de Publicação: 2008
Outros Autores: Soardi,Fernanda Caroline, Ananias,Nayla, Belangero,Vera Maria Santoro, Rigatto,Sumara Zuazani Pinto, De-Mello,Maricilda Palandi, D'Souza-Li,Lília
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Arquivos Brasileiros de Endocrinologia & Metabologia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27302008000800007
Resumo: Mutations in the vitamin D receptor (VDR) are associated to the hereditary 1,25-dihydroxivitamin D-resistant rickets. The objectives of this work are: search for mutations in the VDR and analyze their functional consequences in four Brazilian children presented with rickets and alopecia. The coding region of the VDR was amplified by PCR e direct sequenced. We identified three mutations: two patients had the same mutation in exon 7 at aminoacid position 259 (p.Q259E); one patient had a mutation in exon 8 at codon 319 (p.G319V) and another one had a mutation in exon 3 leading to a truncated protein at position 73 (p.R73X). Functional studies of the mutant receptors of fibroblast primary culture, from patients' skin biopsy treated with increasing doses of 1,25(OH)2 vitamin D showed that VDR mutants were unable to be properly activated and presented a reduction in 24-hydroxylase expression level.
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spelling Mutations in the vitamin D receptor gene in four patients with hereditary 1,25-dihydroxyvitamin D-resistant ricketsRicketsBone deformitiesHypocalcemiaVitamin DMutations in the vitamin D receptor (VDR) are associated to the hereditary 1,25-dihydroxivitamin D-resistant rickets. The objectives of this work are: search for mutations in the VDR and analyze their functional consequences in four Brazilian children presented with rickets and alopecia. The coding region of the VDR was amplified by PCR e direct sequenced. We identified three mutations: two patients had the same mutation in exon 7 at aminoacid position 259 (p.Q259E); one patient had a mutation in exon 8 at codon 319 (p.G319V) and another one had a mutation in exon 3 leading to a truncated protein at position 73 (p.R73X). Functional studies of the mutant receptors of fibroblast primary culture, from patients' skin biopsy treated with increasing doses of 1,25(OH)2 vitamin D showed that VDR mutants were unable to be properly activated and presented a reduction in 24-hydroxylase expression level.Sociedade Brasileira de Endocrinologia e Metabologia2008-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27302008000800007Arquivos Brasileiros de Endocrinologia & Metabologia v.52 n.8 2008reponame:Arquivos Brasileiros de Endocrinologia & Metabologia (Online)instname:Sociedade Brasileira de Endocrinologia e Metabologia (SBEM)instacron:SBEM10.1590/S0004-27302008000800007info:eu-repo/semantics/openAccessMacedo,Luciana Cosentino deSoardi,Fernanda CarolineAnanias,NaylaBelangero,Vera Maria SantoroRigatto,Sumara Zuazani PintoDe-Mello,Maricilda PalandiD'Souza-Li,Líliaeng2009-01-22T00:00:00Zoai:scielo:S0004-27302008000800007Revistahttps://www.aem-sbem.com/ONGhttps://old.scielo.br/oai/scielo-oai.php||abem-editoria@endocrino.org.br1677-94870004-2730opendoar:2009-01-22T00:00Arquivos Brasileiros de Endocrinologia & Metabologia (Online) - Sociedade Brasileira de Endocrinologia e Metabologia (SBEM)false
dc.title.none.fl_str_mv Mutations in the vitamin D receptor gene in four patients with hereditary 1,25-dihydroxyvitamin D-resistant rickets
title Mutations in the vitamin D receptor gene in four patients with hereditary 1,25-dihydroxyvitamin D-resistant rickets
spellingShingle Mutations in the vitamin D receptor gene in four patients with hereditary 1,25-dihydroxyvitamin D-resistant rickets
Macedo,Luciana Cosentino de
Rickets
Bone deformities
Hypocalcemia
Vitamin D
title_short Mutations in the vitamin D receptor gene in four patients with hereditary 1,25-dihydroxyvitamin D-resistant rickets
title_full Mutations in the vitamin D receptor gene in four patients with hereditary 1,25-dihydroxyvitamin D-resistant rickets
title_fullStr Mutations in the vitamin D receptor gene in four patients with hereditary 1,25-dihydroxyvitamin D-resistant rickets
title_full_unstemmed Mutations in the vitamin D receptor gene in four patients with hereditary 1,25-dihydroxyvitamin D-resistant rickets
title_sort Mutations in the vitamin D receptor gene in four patients with hereditary 1,25-dihydroxyvitamin D-resistant rickets
author Macedo,Luciana Cosentino de
author_facet Macedo,Luciana Cosentino de
Soardi,Fernanda Caroline
Ananias,Nayla
Belangero,Vera Maria Santoro
Rigatto,Sumara Zuazani Pinto
De-Mello,Maricilda Palandi
D'Souza-Li,Lília
author_role author
author2 Soardi,Fernanda Caroline
Ananias,Nayla
Belangero,Vera Maria Santoro
Rigatto,Sumara Zuazani Pinto
De-Mello,Maricilda Palandi
D'Souza-Li,Lília
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Macedo,Luciana Cosentino de
Soardi,Fernanda Caroline
Ananias,Nayla
Belangero,Vera Maria Santoro
Rigatto,Sumara Zuazani Pinto
De-Mello,Maricilda Palandi
D'Souza-Li,Lília
dc.subject.por.fl_str_mv Rickets
Bone deformities
Hypocalcemia
Vitamin D
topic Rickets
Bone deformities
Hypocalcemia
Vitamin D
description Mutations in the vitamin D receptor (VDR) are associated to the hereditary 1,25-dihydroxivitamin D-resistant rickets. The objectives of this work are: search for mutations in the VDR and analyze their functional consequences in four Brazilian children presented with rickets and alopecia. The coding region of the VDR was amplified by PCR e direct sequenced. We identified three mutations: two patients had the same mutation in exon 7 at aminoacid position 259 (p.Q259E); one patient had a mutation in exon 8 at codon 319 (p.G319V) and another one had a mutation in exon 3 leading to a truncated protein at position 73 (p.R73X). Functional studies of the mutant receptors of fibroblast primary culture, from patients' skin biopsy treated with increasing doses of 1,25(OH)2 vitamin D showed that VDR mutants were unable to be properly activated and presented a reduction in 24-hydroxylase expression level.
publishDate 2008
dc.date.none.fl_str_mv 2008-11-01
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=S0004-27302008000800007
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27302008000800007
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0004-27302008000800007
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 Sociedade Brasileira de Endocrinologia e Metabologia
publisher.none.fl_str_mv Sociedade Brasileira de Endocrinologia e Metabologia
dc.source.none.fl_str_mv Arquivos Brasileiros de Endocrinologia & Metabologia v.52 n.8 2008
reponame:Arquivos Brasileiros de Endocrinologia & Metabologia (Online)
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reponame_str Arquivos Brasileiros de Endocrinologia & Metabologia (Online)
collection Arquivos Brasileiros de Endocrinologia & Metabologia (Online)
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