Primary Hyperoxaluria Type 1 in 18 Children: Genotyping and Outcome

Background. Primary hyperoxaluria belongs to a group of rare metabolic disorders with autosomal recessive inheritance. It results from genetic mutations of the AGXT gene, which is more common due to higher consanguinity rates in the developing countries. Clinical features at presentation are heterog...

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Main Authors: Mohamed S. Al Riyami, Badria Al Ghaithi, Nadia Al Hashmi, Naifain Al Kalbani
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:International Journal of Nephrology
Online Access:http://dx.doi.org/10.1155/2015/634175
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author Mohamed S. Al Riyami
Badria Al Ghaithi
Nadia Al Hashmi
Naifain Al Kalbani
author_facet Mohamed S. Al Riyami
Badria Al Ghaithi
Nadia Al Hashmi
Naifain Al Kalbani
author_sort Mohamed S. Al Riyami
collection DOAJ
description Background. Primary hyperoxaluria belongs to a group of rare metabolic disorders with autosomal recessive inheritance. It results from genetic mutations of the AGXT gene, which is more common due to higher consanguinity rates in the developing countries. Clinical features at presentation are heterogeneous even in children from the same family; this study was conducted to determine the clinical characteristics, type of AGXT mutation, and outcome in children diagnosed with PH1 at a tertiary referral center in Oman. Method. Retrospective review of children diagnosed with PH1 at a tertiary hospital in Oman from 2000 to 2013. Result. Total of 18 children were identified. Females composed 61% of the children with median presentation age of 7 months. Severe renal failure was initial presentation in 39% and 22% presented with nephrocalcinosis and/or renal calculi. Family screening diagnosed 39% of patients. Fifty percent of the children underwent hemodialysis. 28% of children underwent organ transplantation. The most common mutation found in Omani children was c.33-34insC mutation in the AGXT gene. Conclusion. Due to consanguinity, PH1 is a common cause of ESRD in Omani children. Genetic testing is recommended to help in family counseling and helps in decreasing the incidence and disease burden; it also could be utilized for premarital screening.
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issn 2090-214X
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series International Journal of Nephrology
spelling doaj-art-2d0954ca4c7a4a71a3e3b666b212e3412025-02-03T01:12:25ZengWileyInternational Journal of Nephrology2090-214X2090-21582015-01-01201510.1155/2015/634175634175Primary Hyperoxaluria Type 1 in 18 Children: Genotyping and OutcomeMohamed S. Al Riyami0Badria Al Ghaithi1Nadia Al Hashmi2Naifain Al Kalbani3Pediatric Nephrology Unit, Department of Child Health, Royal Hospital, P.O. Box 1331, 111 Muscat, OmanPediatric Nephrology Unit, Department of Child Health, Royal Hospital, P.O. Box 1331, 111 Muscat, OmanPediatric Nephrology Unit, Department of Child Health, Royal Hospital, P.O. Box 1331, 111 Muscat, OmanPediatric Nephrology Unit, Department of Child Health, Royal Hospital, P.O. Box 1331, 111 Muscat, OmanBackground. Primary hyperoxaluria belongs to a group of rare metabolic disorders with autosomal recessive inheritance. It results from genetic mutations of the AGXT gene, which is more common due to higher consanguinity rates in the developing countries. Clinical features at presentation are heterogeneous even in children from the same family; this study was conducted to determine the clinical characteristics, type of AGXT mutation, and outcome in children diagnosed with PH1 at a tertiary referral center in Oman. Method. Retrospective review of children diagnosed with PH1 at a tertiary hospital in Oman from 2000 to 2013. Result. Total of 18 children were identified. Females composed 61% of the children with median presentation age of 7 months. Severe renal failure was initial presentation in 39% and 22% presented with nephrocalcinosis and/or renal calculi. Family screening diagnosed 39% of patients. Fifty percent of the children underwent hemodialysis. 28% of children underwent organ transplantation. The most common mutation found in Omani children was c.33-34insC mutation in the AGXT gene. Conclusion. Due to consanguinity, PH1 is a common cause of ESRD in Omani children. Genetic testing is recommended to help in family counseling and helps in decreasing the incidence and disease burden; it also could be utilized for premarital screening.http://dx.doi.org/10.1155/2015/634175
spellingShingle Mohamed S. Al Riyami
Badria Al Ghaithi
Nadia Al Hashmi
Naifain Al Kalbani
Primary Hyperoxaluria Type 1 in 18 Children: Genotyping and Outcome
International Journal of Nephrology
title Primary Hyperoxaluria Type 1 in 18 Children: Genotyping and Outcome
title_full Primary Hyperoxaluria Type 1 in 18 Children: Genotyping and Outcome
title_fullStr Primary Hyperoxaluria Type 1 in 18 Children: Genotyping and Outcome
title_full_unstemmed Primary Hyperoxaluria Type 1 in 18 Children: Genotyping and Outcome
title_short Primary Hyperoxaluria Type 1 in 18 Children: Genotyping and Outcome
title_sort primary hyperoxaluria type 1 in 18 children genotyping and outcome
url http://dx.doi.org/10.1155/2015/634175
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AT badriaalghaithi primaryhyperoxaluriatype1in18childrengenotypingandoutcome
AT nadiaalhashmi primaryhyperoxaluriatype1in18childrengenotypingandoutcome
AT naifainalkalbani primaryhyperoxaluriatype1in18childrengenotypingandoutcome