Contribution of the N-acetyltransferase 2 polymorphism NAT2*6A to age-related hearing impairment

被引:65
作者
Van Eyken, E.
Van Camp, G.
Fransen, E.
Topsakal, V.
Hendrickx, J. J.
Demeester, K.
De Heyning, P. Van
Ki-Torkko, E. Ma
Hannula, S.
Sorri, M.
Jensen, M.
Parving, A.
Bille, M.
Baur, M.
Pfister, M.
Bonaconsa, A.
Mazzoli, M.
Orzan, E.
Espeso, A.
Stephens, D.
Verbruggen, K.
Huyghe, J.
Dhooge, I.
Huygen, P.
Kremer, H.
Cremers, C. W. R. J.
Kunst, S.
Manninen, M.
Pyykko, I.
Lacava, A.
Steffens, M.
Wienker, T. F.
Van Laer, L.
机构
[1] Univ Antwerp, Dept Med Genet, B-2610 Antwerp, Belgium
[2] Univ Antwerp Hosp, Dept Otorhinolaryngol, Antwerp, Belgium
[3] Univ Oulu, Dept Otorhinolaryngol, Oulu, Finland
[4] Bispebjerg Hosp, Dept Audiol, DK-2400 Copenhagen, Denmark
[5] Univ Tubingen, Dept Otorhinolaryngol, Tubingen, Germany
[6] Univ Hosp Padova, Dept Otosurg, Padua, Italy
[7] Univ Wales Hosp, Welsh Hearing Inst, Cardiff, Wales
[8] Ghent Univ Hosp, Dept Otorhinolaryngol, B-9000 Ghent, Belgium
[9] Radboud Univ Nijmegen, Dept Otorhinolaryngol, Med Ctr, Nijmegen, Netherlands
[10] Univ Tampere, Dept Otorhinolaryngol, FIN-33101 Tampere, Finland
[11] Univ Bonn, Inst Med Biometry Informat & Epidemiol, D-5300 Bonn, Germany
关键词
D O I
10.1136/jmg.2007.049205
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
Background: Age-related hearing impairment (ARHI) is the most common sensory impairment in older people, affecting 50% of those aged 80 years. The proportion of older people is increasing in the general population, and as a consequence, the number of people affected with ARHI is growing. ARHI is a complex disorder, with both environmental and genetic factors contributing to the disease. The first studies to elucidate these genetic factors were recently performed, resulting in the identification of the first two susceptibility genes for ARHI, NAT2 and KCNQ4. Methods: In the present study, the association between ARHI and polymorphisms in genes that contribute to the defence against reactive oxygen species, including GSTT1, GSTM1 and NAT2, was tested. Samples originated from seven different countries and were combined into two test population samples, the general European population and the Finnish population. Two distinct phenotypes for ARHI were studied, Z(low) and Z(high), representing hearing in the low and high frequencies, respectively. Statistical analysis was performed for single polymorphisms (GSTM1, GSTT1, NAT2*5A, NAT2*6A, and NAT2*7A), haplotypes, and gene environment and gene-gene interactions. Results: We found an association between ARHI and GSTT1 and GSTM1 in the Finnish population sample, and with NAT2*6A in the general European population sample. The latter finding replicates previously published data. Conclusion: As replication is considered the ultimate proof of true associations in the study of complex disorders, this study provides further support for the involvement of NAT2*6A in ARHI.
引用
收藏
页码:570 / 578
页数:9
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