Vitamin D-dependent rickets (VDDR) type 1: case series of two siblings with a CYP27B1 mutation and review of the literature

Abstract Two siblings presented with clinical and biochemical features of rickets, initially suspected as hypophosphatemic rickets. There was no improvement initially, hence the siblings were reinvestigated and later diagnosed as having vitamin D-dependent rickets (VDDR) type 1 due to a rare mutatio...

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Main Authors: Rachita Singh Dhull, Reena Jain, Bobbity Deepthi, Hae II Cheong, Abhijeet Saha, Mohit Mehndiratta, Srikanta Basu
Format: Article
Language:English
Published: Sociedade Brasileira de Nefrologia 2020-09-01
Series:Brazilian Journal of Nephrology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-28002020000400494&tlng=pt
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author Rachita Singh Dhull
Reena Jain
Bobbity Deepthi
Hae II Cheong
Abhijeet Saha
Mohit Mehndiratta
Srikanta Basu
author_facet Rachita Singh Dhull
Reena Jain
Bobbity Deepthi
Hae II Cheong
Abhijeet Saha
Mohit Mehndiratta
Srikanta Basu
author_sort Rachita Singh Dhull
collection DOAJ
description Abstract Two siblings presented with clinical and biochemical features of rickets, initially suspected as hypophosphatemic rickets. There was no improvement initially, hence the siblings were reinvestigated and later diagnosed as having vitamin D-dependent rickets (VDDR) type 1 due to a rare mutation in the CYP27B1 gene encoding the 1α-hydroxylase enzyme. Both siblings improved with calcitriol supplementation. The initial presentation of VDDR is often confusing and algorithmic evaluation helps in diagnosis. We also present a brief review of the literature, including genetics.
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spelling doaj.art-1adc7c8ba3444b39873c7fa789db17c32022-12-22T04:09:47ZengSociedade Brasileira de NefrologiaBrazilian Journal of Nephrology2175-82392020-09-0142449449710.1590/2175-8239-jbn-2020-0001Vitamin D-dependent rickets (VDDR) type 1: case series of two siblings with a CYP27B1 mutation and review of the literatureRachita Singh DhullReena JainBobbity DeepthiHae II CheongAbhijeet Sahahttps://orcid.org/0000-0002-0251-2822Mohit MehndirattaSrikanta BasuAbstract Two siblings presented with clinical and biochemical features of rickets, initially suspected as hypophosphatemic rickets. There was no improvement initially, hence the siblings were reinvestigated and later diagnosed as having vitamin D-dependent rickets (VDDR) type 1 due to a rare mutation in the CYP27B1 gene encoding the 1α-hydroxylase enzyme. Both siblings improved with calcitriol supplementation. The initial presentation of VDDR is often confusing and algorithmic evaluation helps in diagnosis. We also present a brief review of the literature, including genetics.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-28002020000400494&tlng=ptFamilial Hypophosphatemic RicketsChildren25-Hydroxyvitamin D3 1-alpha-HydroxylaseMutagenesis, Insertional
spellingShingle Rachita Singh Dhull
Reena Jain
Bobbity Deepthi
Hae II Cheong
Abhijeet Saha
Mohit Mehndiratta
Srikanta Basu
Vitamin D-dependent rickets (VDDR) type 1: case series of two siblings with a CYP27B1 mutation and review of the literature
Brazilian Journal of Nephrology
Familial Hypophosphatemic Rickets
Children
25-Hydroxyvitamin D3 1-alpha-Hydroxylase
Mutagenesis, Insertional
title Vitamin D-dependent rickets (VDDR) type 1: case series of two siblings with a CYP27B1 mutation and review of the literature
title_full Vitamin D-dependent rickets (VDDR) type 1: case series of two siblings with a CYP27B1 mutation and review of the literature
title_fullStr Vitamin D-dependent rickets (VDDR) type 1: case series of two siblings with a CYP27B1 mutation and review of the literature
title_full_unstemmed Vitamin D-dependent rickets (VDDR) type 1: case series of two siblings with a CYP27B1 mutation and review of the literature
title_short Vitamin D-dependent rickets (VDDR) type 1: case series of two siblings with a CYP27B1 mutation and review of the literature
title_sort vitamin d dependent rickets vddr type 1 case series of two siblings with a cyp27b1 mutation and review of the literature
topic Familial Hypophosphatemic Rickets
Children
25-Hydroxyvitamin D3 1-alpha-Hydroxylase
Mutagenesis, Insertional
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-28002020000400494&tlng=pt
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