Hyperammonemia in a girl who inherited a likely pathogenic variant of the ornithine transcarbamylase gene from her asymptomatic father—A peculiar pattern of X‐linked recessive inheritance

Abstract A three‐year‐old Chinese girl presented with hyperammonemia was diagnosed biochemically and genetically (heterozygous for a novel likely pathogenic missense variant c.476T>A) as having ornithine transcarbamylase (OTC) deficiency, a rare X‐linked recessive urea cycle disorders. Extensive...

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Main Authors: Toby Chun Hei Chan, Hoi Ning Cheung, Jasmine Chow, Mei Tik Leung, Sammy Pak Lam Chen, Chi Chung Shek
Format: Article
Language:English
Published: Wiley 2022-09-01
Series:Clinical Case Reports
Subjects:
Online Access:https://doi.org/10.1002/ccr3.6347
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author Toby Chun Hei Chan
Hoi Ning Cheung
Jasmine Chow
Mei Tik Leung
Sammy Pak Lam Chen
Chi Chung Shek
author_facet Toby Chun Hei Chan
Hoi Ning Cheung
Jasmine Chow
Mei Tik Leung
Sammy Pak Lam Chen
Chi Chung Shek
author_sort Toby Chun Hei Chan
collection DOAJ
description Abstract A three‐year‐old Chinese girl presented with hyperammonemia was diagnosed biochemically and genetically (heterozygous for a novel likely pathogenic missense variant c.476T>A) as having ornithine transcarbamylase (OTC) deficiency, a rare X‐linked recessive urea cycle disorders. Extensive family genetic screening eventually revealed paternal gonadosomatic mosaicism.
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spelling doaj.art-a0ac5c945e034849ab213862d513577a2022-12-22T04:27:14ZengWileyClinical Case Reports2050-09042022-09-01109n/an/a10.1002/ccr3.6347Hyperammonemia in a girl who inherited a likely pathogenic variant of the ornithine transcarbamylase gene from her asymptomatic father—A peculiar pattern of X‐linked recessive inheritanceToby Chun Hei Chan0Hoi Ning Cheung1Jasmine Chow2Mei Tik Leung3Sammy Pak Lam Chen4Chi Chung Shek5Department of Pathology Queen Elizabeth Hospital Hong Kong ChinaDepartment of Pathology Queen Elizabeth Hospital Hong Kong ChinaDepartment of Paediatrics Queen Elizabeth Hospital Hong Kong ChinaDepartment of Pathology Queen Elizabeth Hospital Hong Kong ChinaDepartment of Pathology Queen Elizabeth Hospital Hong Kong ChinaDepartment of Pathology Queen Elizabeth Hospital Hong Kong ChinaAbstract A three‐year‐old Chinese girl presented with hyperammonemia was diagnosed biochemically and genetically (heterozygous for a novel likely pathogenic missense variant c.476T>A) as having ornithine transcarbamylase (OTC) deficiency, a rare X‐linked recessive urea cycle disorders. Extensive family genetic screening eventually revealed paternal gonadosomatic mosaicism.https://doi.org/10.1002/ccr3.6347genetic mosaicismhyperammonemiainborn errors of metabolismornithine transcarbamylase deficiency
spellingShingle Toby Chun Hei Chan
Hoi Ning Cheung
Jasmine Chow
Mei Tik Leung
Sammy Pak Lam Chen
Chi Chung Shek
Hyperammonemia in a girl who inherited a likely pathogenic variant of the ornithine transcarbamylase gene from her asymptomatic father—A peculiar pattern of X‐linked recessive inheritance
Clinical Case Reports
genetic mosaicism
hyperammonemia
inborn errors of metabolism
ornithine transcarbamylase deficiency
title Hyperammonemia in a girl who inherited a likely pathogenic variant of the ornithine transcarbamylase gene from her asymptomatic father—A peculiar pattern of X‐linked recessive inheritance
title_full Hyperammonemia in a girl who inherited a likely pathogenic variant of the ornithine transcarbamylase gene from her asymptomatic father—A peculiar pattern of X‐linked recessive inheritance
title_fullStr Hyperammonemia in a girl who inherited a likely pathogenic variant of the ornithine transcarbamylase gene from her asymptomatic father—A peculiar pattern of X‐linked recessive inheritance
title_full_unstemmed Hyperammonemia in a girl who inherited a likely pathogenic variant of the ornithine transcarbamylase gene from her asymptomatic father—A peculiar pattern of X‐linked recessive inheritance
title_short Hyperammonemia in a girl who inherited a likely pathogenic variant of the ornithine transcarbamylase gene from her asymptomatic father—A peculiar pattern of X‐linked recessive inheritance
title_sort hyperammonemia in a girl who inherited a likely pathogenic variant of the ornithine transcarbamylase gene from her asymptomatic father a peculiar pattern of x linked recessive inheritance
topic genetic mosaicism
hyperammonemia
inborn errors of metabolism
ornithine transcarbamylase deficiency
url https://doi.org/10.1002/ccr3.6347
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