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Improving genetic diagnosis by disease-specific, ACMG/AMP variant interpretation guidelines for hearing loss

Cited 2 time in Web of Science Cited 2 time in Scopus
Authors

Kim, So Young; Kim, Bong Jik; Oh, Doo Yi; Han, Jin Hee; Yi, Nayoung; Kim, Namju Justin; Park, Moo Kyun; Keum, Changwon; Seo, Go Hun; Choi, Byung Yoon

Issue Date
2022-07
Publisher
Nature Publishing Group
Citation
Scientific Reports, Vol.12 No.1, p. 12457
Abstract
© 2022, The Author(s).The 2018 Hearing Loss Expert Panel (HL-EP)-specific guidelines specified from the universal 2015 ACMG/AMP guidelines are proposed to be used in genetic HL, which prompted this study. A genetic HL cohort comprising 135 unrelated probands with available exome sequencing data was established. Overall, 169 variants were prioritized as candidates and interpreted using the 2015 ACMG/AMP and 2018 HL-EP guidelines. Changes in rule application and variant classification between the guidelines were compared. The concordance rate of variant classification of each variant between the guidelines was 71.60%, with significant difference. The proportion of pathogenic variants increased from 13.02% (2015) to 29.59% (2018). Variant classifications of autosomal recessive (AR) variants that previously belonged to VUS or likely pathogenic in the 2015 guidelines were changed toward pathogenic in the 2018 guidelines more frequently than those of autosomal dominant variants (29.17% vs. 6.38%, P = 0.005). Stratification of the PM3 and PP1 rules in the 2018 guidelines led to more substantial escalation than that in the 2015 guidelines. We compared the disease-specific guidelines (2018) with the universal guidelines (2015) using real-world data. Owing to the sophistication of case-level data, the HL-specific guidelines have more explicitly classified AR variants toward likely pathogenic or pathogenic, serving as potential references for other recessive genetic diseases.
ISSN
2045-2322
URI
https://hdl.handle.net/10371/184707
DOI
https://doi.org/10.1038/s41598-022-16661-x
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