A case report of an Egyptian family with familial hypercholesterolemia and an exonic LINE‐1 insertion in LDLR

Abstract Background Familial hypercholesterolemia (MIM: PS143890) is a genetic disorder characterized by an increase in blood cholesterol. LDLR is one of the genes which their defect contributes to the disorder. Affected individuals may carry a heterozygous variant or homozygous/compound heterozygou...

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Main Authors: Yongjun Song, Reham Abdel Haleem Abo Elwafa, Omneya Magdy Omar, Go Hun Seo, Hane Lee
Format: Article
Language:English
Published: Wiley 2024-03-01
Series:Molecular Genetics & Genomic Medicine
Subjects:
Online Access:https://doi.org/10.1002/mgg3.2410
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author Yongjun Song
Reham Abdel Haleem Abo Elwafa
Omneya Magdy Omar
Go Hun Seo
Hane Lee
author_facet Yongjun Song
Reham Abdel Haleem Abo Elwafa
Omneya Magdy Omar
Go Hun Seo
Hane Lee
author_sort Yongjun Song
collection DOAJ
description Abstract Background Familial hypercholesterolemia (MIM: PS143890) is a genetic disorder characterized by an increase in blood cholesterol. LDLR is one of the genes which their defect contributes to the disorder. Affected individuals may carry a heterozygous variant or homozygous/compound heterozygous variants and those with biallelic pathogenic variants present more severe symptoms. Method We report an Egyptian family with familial hypercholesterolemia. Both the proband and parents have the disorder while a sibling is unaffected. Exome sequencing was performed to identify the causal variant. Results LINE‐1 insertion in exon 7 of LDLR was identified. Both parents have a heterozygous variant while the proband has a homozygous variant. The unaffected sibling did not carry the variant. Discussion This insertion may contribute to the high prevalence of hypercholesterolemia in Egypt and the finding underscores the importance of implementing mobile element insertion caller in routine bioinformatics pipeline.
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spelling doaj.art-6a7477e0eda544abb134fe80cbc0d97a2024-03-27T10:47:28ZengWileyMolecular Genetics & Genomic Medicine2324-92692024-03-01123n/an/a10.1002/mgg3.2410A case report of an Egyptian family with familial hypercholesterolemia and an exonic LINE‐1 insertion in LDLRYongjun Song0Reham Abdel Haleem Abo Elwafa1Omneya Magdy Omar2Go Hun Seo3Hane Lee43billion, Inc. Seoul South KoreaDepartment of Clinical Pathology, Faculty of Medicine Alexandria University Alexandria EgyptDepartment of Pediatrics, Faculty of Medicine Alexandria University Alexandria Egypt3billion, Inc. Seoul South Korea3billion, Inc. Seoul South KoreaAbstract Background Familial hypercholesterolemia (MIM: PS143890) is a genetic disorder characterized by an increase in blood cholesterol. LDLR is one of the genes which their defect contributes to the disorder. Affected individuals may carry a heterozygous variant or homozygous/compound heterozygous variants and those with biallelic pathogenic variants present more severe symptoms. Method We report an Egyptian family with familial hypercholesterolemia. Both the proband and parents have the disorder while a sibling is unaffected. Exome sequencing was performed to identify the causal variant. Results LINE‐1 insertion in exon 7 of LDLR was identified. Both parents have a heterozygous variant while the proband has a homozygous variant. The unaffected sibling did not carry the variant. Discussion This insertion may contribute to the high prevalence of hypercholesterolemia in Egypt and the finding underscores the importance of implementing mobile element insertion caller in routine bioinformatics pipeline.https://doi.org/10.1002/mgg3.2410exome sequencingfamilial hypercholesterolemiaLDLRmobile element insertionsrare mendelian disorders
spellingShingle Yongjun Song
Reham Abdel Haleem Abo Elwafa
Omneya Magdy Omar
Go Hun Seo
Hane Lee
A case report of an Egyptian family with familial hypercholesterolemia and an exonic LINE‐1 insertion in LDLR
Molecular Genetics & Genomic Medicine
exome sequencing
familial hypercholesterolemia
LDLR
mobile element insertions
rare mendelian disorders
title A case report of an Egyptian family with familial hypercholesterolemia and an exonic LINE‐1 insertion in LDLR
title_full A case report of an Egyptian family with familial hypercholesterolemia and an exonic LINE‐1 insertion in LDLR
title_fullStr A case report of an Egyptian family with familial hypercholesterolemia and an exonic LINE‐1 insertion in LDLR
title_full_unstemmed A case report of an Egyptian family with familial hypercholesterolemia and an exonic LINE‐1 insertion in LDLR
title_short A case report of an Egyptian family with familial hypercholesterolemia and an exonic LINE‐1 insertion in LDLR
title_sort case report of an egyptian family with familial hypercholesterolemia and an exonic line 1 insertion in ldlr
topic exome sequencing
familial hypercholesterolemia
LDLR
mobile element insertions
rare mendelian disorders
url https://doi.org/10.1002/mgg3.2410
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