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. 2021 Apr 29;50(1):31.
doi: 10.1186/s40463-021-00512-2.

The association of heat shock protein genetic polymorphisms with age-related hearing impairment in Taiwan

Ning-Chia Chang  1   2   3 , Hua-Ling Yang  4 , Chia-Yen Dai  4   5 , Wen-Yi Lin  3 , Meng-Hsuen Hsieh  4   5   6 , Chen-Yu Chien #  7   8 , Kuen-Yao Ho #  9   10
Affiliations

The association of heat shock protein genetic polymorphisms with age-related hearing impairment in Taiwan

Ning-Chia Chang et al. J Otolaryngol Head Neck Surg. .

Abstract

Background: Age-related hearing impairment (ARHI) is a major disability among the elderly population. Heat shock proteins (HSPs) were found to be associated with ARHI in animal studies. The aim of this study was to analyze the associations of single nucleotide polymorphisms (SNPs) of HSP genes with ARHI in an elderly population in Taiwan.

Methods: Participants ≥65 years of age were recruited for audiometric tests and genetic analyses. The pure tone average (PTA) of the better hearing ear was calculated for ARHI evaluation. The associations of HSPA1L (rs2075800 and rs2227956), HSPA1A (rs1043618) and HSPA1B (rs2763979) with ARHI were analyzed in 146 ARHI-susceptible (cases) and 146 ARHI-resistant (controls) participants.

Results: The "T" allele of HSPA1B rs2763979 showed a decreased risk of ARHI. The "TT" genotype of rs2763979 also showed a decreased risk of ARHI in the dominant hereditary model. For HSPA1L (rs2075800 and rs2227956) and HSPA1A (rs1043618), the haplotype "CAG" was related to a decreased risk of ARHI.

Conclusion: These findings suggest that HSP70 polymorphisms are associated with susceptibility to ARHI in the elderly population.

Keywords: Age-related hearing impairment; Heat shock protein; Single nucleotide polymorphism.

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Conflict of interest statement

The authors declare that they have no competing interests.

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