Abstract:

Objective: Numerous studies investigating Vitamin D receptor (VDR) polymorphisms in different populations have been present in current literature.For this reason, we designed a study to investigate the role of three known common VDR genetic polymorphisms (Apa-I/rs7975232, Bsm-I/ rs1544410 and Taq-I/rs731236) in Turkish individuals affected by Obstructive sleep apnea syndrome (OSAS).Methods: The study was carried out on a total of 175 consecutive subjects, including 80 OSAS patients and 95 healthy participants.Single Nucleotide Polymorphism (SNP) Detection was performed with the iPLEX Assay and the MassARRAY System for detection of Apa-I (rs7975232), Bsm-I (rs1544410), and Taq-I (rs731236) polymorphisms.®®Results: Fifty-seven C alleles (71.3%) and 59 T alleles (73. 8%) were detected in the group of 80 OSAS patients in terms of rs1544410 polymorphism. When the patient and control groups were evaluated statistically at allelic level, it was observed that the T allele increased the risk of disease and this increase was statistically significant (Odds Ratio (OR) = 1.549 [Confidence Interval (CI): 1.012-2.371], (p=0.043). However, there were no significant differences between other VDR polymorphisms (rs7975232 and rs731236) and OSAS clinical data (p=0.6 and p=0.9, respectively). Discussion: As a conclusion, no statistically significant relationship was found between all three VDR polymorphisms and OSAS patients' clinical features. Further studies should be performed by creating a large sampling group. Finally, population studies should be given importance considering the variability of polymorphism according to ethnic origin.

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