Molecular genetics & genomic medicine · 2024
Multicolor melting curve analysis discloses high carrier frequency of hearing loss-associated variants among neonates in Jiangsu province.
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Liu Yi, Zhang Yuanyuan, Wang Jue, Song Shengnan, Wang Huiyan, Meng Qian, Zhan Yuan, Xu Yetao, Sun Lizhou
Аннотация
BACKGROUND: Genetic disorders ascribe to half of cases of congenital hearing loss. Hearing screening is significant in detecting hearing loss (HL) but weak at diagnosis, which can be complemented by genetic screening.
METHODS: To find a feasible method to accomplish genetic screening and evaluate its advantage when combined with hearing screening, between 1 January 2022, and 10 December 2023, we performed an observational cohort study based on 2488 neonates from the Han population at three hospitals in Jiangsu province. Genetic screening for 20 variants in four common HL-associated genes by multicolor melting curve analysis (MMCA) and hearing screening were offered concurrently to all participants.
RESULTS: In total, 170 (6.8%) of 2488 eligible neonates were detected at least one variant and among them, the proportion of referral was higher (p < 0.05). Genetic screening combined with hearing screening was associated with a 25.0% increase (2 of 8) in discovering cases of diagnosed hearing loss that were missed by hearing screening.
CONCLUSION: This study suggests that genetic screening combined with hearing screening by MMCA is effective at finding potential HL cases and practical to be validated in other places.
METHODS: To find a feasible method to accomplish genetic screening and evaluate its advantage when combined with hearing screening, between 1 January 2022, and 10 December 2023, we performed an observational cohort study based on 2488 neonates from the Han population at three hospitals in Jiangsu province. Genetic screening for 20 variants in four common HL-associated genes by multicolor melting curve analysis (MMCA) and hearing screening were offered concurrently to all participants.
RESULTS: In total, 170 (6.8%) of 2488 eligible neonates were detected at least one variant and among them, the proportion of referral was higher (p < 0.05). Genetic screening combined with hearing screening was associated with a 25.0% increase (2 of 8) in discovering cases of diagnosed hearing loss that were missed by hearing screening.
CONCLUSION: This study suggests that genetic screening combined with hearing screening by MMCA is effective at finding potential HL cases and practical to be validated in other places.