Identification of a novel large CASR deletion in a patient with familial hypocalciuric hypercalcemia

Familial hypocalciuric hypercalcemia type I is an autosomal dominant disorder caused by heterozygous loss-of-function mutations in the CASR gene and is characterized by moderately elevated serum calcium concentrations, low urinary calcium excretion and inappropriately normal or mildly elevated parat...

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Main Authors: Alejandro García-Castaño, Leire Madariaga, Sharona Azriel, Gustavo Pérez de Nanclares, Idoia Martínez de LaPiscina, Rosa Martínez, Inés Urrutia, Aníbal Aguayo, Sonia Gaztambide, Luis Castaño
Formato: Artigo
Idioma:English
Publicado em: Bioscientifica 2018-12-01
Colecção:Endocrinology, Diabetes & Metabolism Case Reports
Acesso em linha:https://edm.bioscientifica.com/view/journals/edm/2018/1/EDM18-0114.xml
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author Alejandro García-Castaño
Leire Madariaga
Sharona Azriel
Gustavo Pérez de Nanclares
Idoia Martínez de LaPiscina
Rosa Martínez
Inés Urrutia
Aníbal Aguayo
Sonia Gaztambide
Luis Castaño
author_facet Alejandro García-Castaño
Leire Madariaga
Sharona Azriel
Gustavo Pérez de Nanclares
Idoia Martínez de LaPiscina
Rosa Martínez
Inés Urrutia
Aníbal Aguayo
Sonia Gaztambide
Luis Castaño
author_sort Alejandro García-Castaño
collection DOAJ
description Familial hypocalciuric hypercalcemia type I is an autosomal dominant disorder caused by heterozygous loss-of-function mutations in the CASR gene and is characterized by moderately elevated serum calcium concentrations, low urinary calcium excretion and inappropriately normal or mildly elevated parathyroid hormone (PTH) concentrations. We performed a clinical and genetic characterization of one patient suspected of familial hypocalciuric hypercalcemia type I. Patient presented persistent hypercalcemia with normal PTH and 25-hydroxyvitamin D levels. The CASR was screened for mutations by PCR followed by direct Sanger sequencing and, in order to detect large deletions or duplications, multiplex ligation-dependent probe amplification (MLPA) was used. One large deletion of 973 nucleotides in heterozygous state (c.1733-255_2450del) was detected. This is the first large deletion detected by the MLPA technique in the CASR gene.
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spelling doaj.art-bdc46244501e4e9bb1bdb94e26bcc9a32022-12-21T19:36:31ZengBioscientificaEndocrinology, Diabetes & Metabolism Case Reports2052-05732052-05732018-12-01111510.1530/EDM-18-0114Identification of a novel large CASR deletion in a patient with familial hypocalciuric hypercalcemiaAlejandro García-Castaño0Leire Madariaga1Sharona Azriel2Gustavo Pérez de Nanclares3Idoia Martínez de LaPiscina4Rosa Martínez5Inés Urrutia6Aníbal Aguayo7Sonia Gaztambide8Luis Castaño9Biocruces Bizkaia Health Research Institute, CIBERDEM, CIBERER, Barakaldo, SpainBiocruces Bizkaia Health Research Institute, CIBERDEM, CIBERER, Barakaldo, Spain; Hospital Universitario Cruces, UPV/EHU, Barakaldo, SpainHospital Infanta Sofia, Madrid, SpainBiocruces Bizkaia Health Research Institute, CIBERDEM, CIBERER, Barakaldo, Spain; Hospital Universitario Cruces, UPV/EHU, Barakaldo, SpainBiocruces Bizkaia Health Research Institute, CIBERDEM, CIBERER, Barakaldo, SpainBiocruces Bizkaia Health Research Institute, CIBERDEM, CIBERER, Barakaldo, SpainBiocruces Bizkaia Health Research Institute, CIBERDEM, CIBERER, Barakaldo, SpainBiocruces Bizkaia Health Research Institute, CIBERDEM, CIBERER, Barakaldo, Spain; Hospital Universitario Cruces, UPV/EHU, Barakaldo, SpainBiocruces Bizkaia Health Research Institute, CIBERDEM, CIBERER, Barakaldo, Spain; Hospital Universitario Cruces, UPV/EHU, Barakaldo, SpainBiocruces Bizkaia Health Research Institute, CIBERDEM, CIBERER, Barakaldo, Spain; Hospital Universitario Cruces, UPV/EHU, Barakaldo, SpainFamilial hypocalciuric hypercalcemia type I is an autosomal dominant disorder caused by heterozygous loss-of-function mutations in the CASR gene and is characterized by moderately elevated serum calcium concentrations, low urinary calcium excretion and inappropriately normal or mildly elevated parathyroid hormone (PTH) concentrations. We performed a clinical and genetic characterization of one patient suspected of familial hypocalciuric hypercalcemia type I. Patient presented persistent hypercalcemia with normal PTH and 25-hydroxyvitamin D levels. The CASR was screened for mutations by PCR followed by direct Sanger sequencing and, in order to detect large deletions or duplications, multiplex ligation-dependent probe amplification (MLPA) was used. One large deletion of 973 nucleotides in heterozygous state (c.1733-255_2450del) was detected. This is the first large deletion detected by the MLPA technique in the CASR gene.https://edm.bioscientifica.com/view/journals/edm/2018/1/EDM18-0114.xml
spellingShingle Alejandro García-Castaño
Leire Madariaga
Sharona Azriel
Gustavo Pérez de Nanclares
Idoia Martínez de LaPiscina
Rosa Martínez
Inés Urrutia
Aníbal Aguayo
Sonia Gaztambide
Luis Castaño
Identification of a novel large CASR deletion in a patient with familial hypocalciuric hypercalcemia
Endocrinology, Diabetes & Metabolism Case Reports
title Identification of a novel large CASR deletion in a patient with familial hypocalciuric hypercalcemia
title_full Identification of a novel large CASR deletion in a patient with familial hypocalciuric hypercalcemia
title_fullStr Identification of a novel large CASR deletion in a patient with familial hypocalciuric hypercalcemia
title_full_unstemmed Identification of a novel large CASR deletion in a patient with familial hypocalciuric hypercalcemia
title_short Identification of a novel large CASR deletion in a patient with familial hypocalciuric hypercalcemia
title_sort identification of a novel large casr deletion in a patient with familial hypocalciuric hypercalcemia
url https://edm.bioscientifica.com/view/journals/edm/2018/1/EDM18-0114.xml
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