Case Report: A potentially pathogenic new variant of the REN gene found in a family experiencing autosomal dominant tubulointerstitial kidney disease

BackgroundAutosomal dominant tubulointerstitial kidney disease (ADTKD) caused by REN-causing pathogenic variants (ADTKD-REN) is a rare group of heritable diseases. ADTKD-REN often manifests in childhood with symptoms such as mild hypotension, chronic kidney disease, hyperkalemia, anemia, and acidosi...

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Main Authors: Jingyu Ma, Zhijuan Hu, Qiong Liu, Jing Li, Jiejie Li
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-12-01
Series:Frontiers in Pediatrics
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Online Access:https://www.frontiersin.org/articles/10.3389/fped.2024.1415064/full
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author Jingyu Ma
Jingyu Ma
Zhijuan Hu
Qiong Liu
Jing Li
Jing Li
Jiejie Li
Jiejie Li
author_facet Jingyu Ma
Jingyu Ma
Zhijuan Hu
Qiong Liu
Jing Li
Jing Li
Jiejie Li
Jiejie Li
author_sort Jingyu Ma
collection DOAJ
description BackgroundAutosomal dominant tubulointerstitial kidney disease (ADTKD) caused by REN-causing pathogenic variants (ADTKD-REN) is a rare group of heritable diseases. ADTKD-REN often manifests in childhood with symptoms such as mild hypotension, chronic kidney disease, hyperkalemia, anemia, and acidosis. The diagnosis of ADTKD-REN remains challenging.Case presentationWe describe a 14-year-old boy with acute kidney injury who was found to have a heterozygous missense mutant c.1085G>A;p.Cys362Tyr (not previously reported in the literature) through Sanger sequencing genetic testing. This confirmed a genetic disorder with a probable autosomal dominant inheritance pattern. Notably, despite a family history of autosomal dominant polycystic kidney disease, he was diagnosed with ADTKD.ConclusionThis case identified a new variant in the REN gene, expanding the known spectrum of REN pathogenic variants. In addition, the importance of family history and genetic testing in confirming the diagnosis is emphasized. Genetic sequencing should be pursued when there are indications for testing.
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publishDate 2024-12-01
publisher Frontiers Media S.A.
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series Frontiers in Pediatrics
spelling doaj-art-a1d8e341d6d44f7d95734f2a4ec9f3f62024-12-11T04:31:35ZengFrontiers Media S.A.Frontiers in Pediatrics2296-23602024-12-011210.3389/fped.2024.14150641415064Case Report: A potentially pathogenic new variant of the REN gene found in a family experiencing autosomal dominant tubulointerstitial kidney diseaseJingyu Ma0Jingyu Ma1Zhijuan Hu2Qiong Liu3Jing Li4Jing Li5Jiejie Li6Jiejie Li7Department of Internal Medicine, North China University of Science and Technology, Tangshan, ChinaDepartment of Nephrology, Hebei General Hospital, Shijiazhuang, ChinaDepartment of Nephrology, Hebei General Hospital, Shijiazhuang, ChinaDepartment of Nephrology, Hebei General Hospital, Shijiazhuang, ChinaDepartment of Nephrology, Hebei General Hospital, Shijiazhuang, ChinaDepartment of Internal Medicine, Hebei Medical University, Shijiazhuang, ChinaDepartment of Internal Medicine, North China University of Science and Technology, Tangshan, ChinaDepartment of Nephrology, Hebei General Hospital, Shijiazhuang, ChinaBackgroundAutosomal dominant tubulointerstitial kidney disease (ADTKD) caused by REN-causing pathogenic variants (ADTKD-REN) is a rare group of heritable diseases. ADTKD-REN often manifests in childhood with symptoms such as mild hypotension, chronic kidney disease, hyperkalemia, anemia, and acidosis. The diagnosis of ADTKD-REN remains challenging.Case presentationWe describe a 14-year-old boy with acute kidney injury who was found to have a heterozygous missense mutant c.1085G>A;p.Cys362Tyr (not previously reported in the literature) through Sanger sequencing genetic testing. This confirmed a genetic disorder with a probable autosomal dominant inheritance pattern. Notably, despite a family history of autosomal dominant polycystic kidney disease, he was diagnosed with ADTKD.ConclusionThis case identified a new variant in the REN gene, expanding the known spectrum of REN pathogenic variants. In addition, the importance of family history and genetic testing in confirming the diagnosis is emphasized. Genetic sequencing should be pursued when there are indications for testing.https://www.frontiersin.org/articles/10.3389/fped.2024.1415064/fullADTKDacute kidney injuryhyperuricemiaRENrenal insufficiency
spellingShingle Jingyu Ma
Jingyu Ma
Zhijuan Hu
Qiong Liu
Jing Li
Jing Li
Jiejie Li
Jiejie Li
Case Report: A potentially pathogenic new variant of the REN gene found in a family experiencing autosomal dominant tubulointerstitial kidney disease
Frontiers in Pediatrics
ADTKD
acute kidney injury
hyperuricemia
REN
renal insufficiency
title Case Report: A potentially pathogenic new variant of the REN gene found in a family experiencing autosomal dominant tubulointerstitial kidney disease
title_full Case Report: A potentially pathogenic new variant of the REN gene found in a family experiencing autosomal dominant tubulointerstitial kidney disease
title_fullStr Case Report: A potentially pathogenic new variant of the REN gene found in a family experiencing autosomal dominant tubulointerstitial kidney disease
title_full_unstemmed Case Report: A potentially pathogenic new variant of the REN gene found in a family experiencing autosomal dominant tubulointerstitial kidney disease
title_short Case Report: A potentially pathogenic new variant of the REN gene found in a family experiencing autosomal dominant tubulointerstitial kidney disease
title_sort case report a potentially pathogenic new variant of the ren gene found in a family experiencing autosomal dominant tubulointerstitial kidney disease
topic ADTKD
acute kidney injury
hyperuricemia
REN
renal insufficiency
url https://www.frontiersin.org/articles/10.3389/fped.2024.1415064/full
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