Neonatally Lethal Fanconi Anemia due to an Amish Founder FANCE Gene Variant; Evidence for Genotype-Phenotype Correlation.

IF 1.7 4区 生物学 Q3 GENETICS & HEREDITY American Journal of Medical Genetics Part A Pub Date : 2025-03-14 DOI:10.1002/ajmg.a.64047
Ethan M Scott, Olivia K Wenger, Matthew Adams, Emma L Baple, Andew Crosby, Joseph Leslie
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引用次数: 0

Abstract

Prenatal and neonatal presentations of multiple congenital anomalies are difficult to diagnose and are associated with an increased risk of lethality. The differential diagnosis of antenatal presentations of radial ray malformations includes Fanconi anemia (FA), an inherited bone marrow failure disorder associated with congenital anomalies in around 75% of affected individuals. Although no definitive genotype-phenotype correlations have been demonstrated, a more severe presentation has been proposed in association with biallelic loss of function variants as opposed to hypomorphic missense variants. FA founder variants have been identified in several ethnic groups. Here we report the first description of a FANCE founder variant (FANCE NM_021922.3:c.1510-1G>A), in the Amish associated with multiple congenital anomalies and neonatal death in four individuals from an extended Amish pedigree comprising three nuclear families. Biparental whole exome sequencing was used to identify the candidate variant and confirmed in the homozygous state in affected individuals. All affected individuals had radial ray malformations, had at least one additional congenital anomaly, and died within the first day of life. We recommend that testing for this founder FANCE variant be considered in Amish individuals with a fetus or infant with multiple congenital anomalies, especially radial ray malformations.

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来源期刊
CiteScore
3.50
自引率
5.00%
发文量
432
审稿时长
2-4 weeks
期刊介绍: The American Journal of Medical Genetics - Part A (AJMG) gives you continuous coverage of all biological and medical aspects of genetic disorders and birth defects, as well as in-depth documentation of phenotype analysis within the current context of genotype/phenotype correlations. In addition to Part A , AJMG also publishes two other parts: Part B: Neuropsychiatric Genetics , covering experimental and clinical investigations of the genetic mechanisms underlying neurologic and psychiatric disorders. Part C: Seminars in Medical Genetics , guest-edited collections of thematic reviews of topical interest to the readership of AJMG .
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