ArticleMolecular genetics & genomic medicine2024
Mutation spectrum of hearing loss patients in Northwest China: Identification of 20 novel variants.
Article in Molecular genetics & genomic medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.
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Who cites it
4 citing papers in PubMed, 1 synthesis or guideline pooled it.
- XLA-MTS: a distinct clinical genetic entity characterized by immunodeficiency and neurodevelopmental delay.Orphanet journal of rare diseases · 2026Pooled it
- Genomic Biomarkers and Mutational Landscape of Nonsyndromic Hearing Loss (NSHL) in the Singaporean Population: Clinical Translational Implications.Biomolecules · 2026Article
- Identification of a Novel Likely Pathogenic Variant of DIAPH3 Associated With New Phenotype of Sensorineural Hearing Loss.Molecular genetics & genomic medicine · 2026Article
- Identification of known and novel genetic variants in sensorineural hearing loss: insights from whole exome sequencing in Indian families.Molecular biology reports · 2025Article
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Abstract
backgroundHearing loss (HL) is the most frequent sensory deficit in humans, with strong genetic heterogeneity. The genetic diagnosis of HL is very important to aid treatment decisions and to provide prognostic information and genetic counselling for the patient's family.
methodsWe detected and analysed 362 Chinese non-syndromic HL patients by screening of variants in 15 hot spot mutations. Subsequently, 40 patients underwent further whole-exome sequencing (WES) to determine genetic aetiology. The candidate variants were verified using Sanger sequencing. Twenty-three carrier couples with pathogenic variants or likely pathogenic variants chose to proceed with prenatal diagnosis using Sanger sequencing.
resultsAmong the 362 HL patients, 102 were assigned a molecular diagnosis with 52 different variants in 22 deafness genes. A total of 41 (11.33%) cases with the biallelic GJB2 (OMIM # 220290) gene mutations were detected, and 21 (5.80%) had biallelic SLC26A4 (OMIM # 605646) mutations. Mitochondrial gene (OMIM # 561000) mutations were detected in seven (1.93%) patients. Twenty of the variants in 15 deafness genes were novel. SOX10 (OMIM # 602229), MYO15A (OMIM # 602666) and WFS1 (OMIM # 606201) were each detected in two patients. Meanwhile, OSBPL2 (OMIM # 606731), RRM2B (OMIM # 604712), OTOG (OMIM # 604487), STRC (OMIM # 606440), PCDH15 (OMIM # 605514), LOXHD1 (OMIM # 613072), CDH23 (OMIM # 605516), TMC1 (OMIM # 606706), CHD7 (OMIM # 608892), DIAPH3 (OMIM # 614567), TBC1D24 (OMIM # 613577), TIMM8A (OMIM # 300356), PTPRQ (OMIM # 603317), SALL1 (OMIM # 602218), and GSDME (OMIM # 608798) were each detected in one patient. In addition, as regards one couple with a heterozygous variant of CDH23 and PCDH15, respectively, prenatal diagnosis results suggest that the foetus had double heterozygous (DH) variants of CDH23 and PCDH15, which has a high risk to cause ID/F type Usher syndrome.
conclusionOur study expanded the spectrum of deafness gene variation, which will contribute to the genetic diagnosis, prenatal diagnosis and the procreation guidance of deaf couple. In addition, the deafness caused by two genes should be paid attention to in the prenatal diagnosis of families with both deaf patients.
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