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  • Title: Otosclerosis and vitamin D receptor gene polymorphism.
    Author: Yıldırım YS, Apuhan T, Düzenli S, Arslan AO.
    Journal: Am J Otolaryngol; 2013; 34(5):454-7. PubMed ID: 23639864.
    Abstract:
    OBJECTIVE: The possible genetic relationship between otosclerosis and Vitamin D Receptor (VDR) gene polymorphism is uncertain. The aim of this study is to assess association between otosclerosis and VDR gene polymorphisms. STUDY DESIGN: Case-control Studies. SETTING: Tertiary referral center. SUBJECTS AND METHODS: Clinical diagnosis of stapes fixation was based on otoscopic, audiometric, tympanometric and surgical findings. We identified 25 eligible patient and 60 controls to investigate the association of the VDR gene polymorphisms FokI, BsmI, ApaI, and Taq I with otosclerosis. The patient and control DNA was genotyped for; VDR Bsm I (rs1544410), VDR Apa I (rs7975232), VDR Taq I (rs731236) and VDR Fok I (rs2228570) gene. Primer, simple probe sequences was genotyped by RT-PCR restriction fragment length polymorphism. RESULTS: There was a statistically significant association between VDR gene and otosclerosis in polymorphism Taq I, Apa I and Bsm I. There was no significant association between VDR gene and otosclerosis in polymorphism Foq I. CONCLUSION: Three polymorphisms (Taq I, Apa I and Bsm I) in the VDR gene appear to be associated to susceptibility to otosclerosis disorder with otosclerosis patients.
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