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02 February 2019 : Clinical Research  

Correlations of Calcium Voltage-Gated Channel Subunit Alpha1 A (CACNA1A) Gene Polymorphisms with Benign Paroxysmal Positional Vertigo

Ruichun Pan12AC, Xiaokun Qi3BC*, Fei Wang4BD, Yi Chong2DE, Xia Li2EF, Qiang Chen2FG

DOI: 10.12659/MSM.912359

Med Sci Monit 2019; 25:946-951

Abstract

BACKGROUND: The aim of this study was to investigate the correlations of calcium voltage-gated channel subunit alpha1 A (CACNA1A) gene polymorphisms with benign paroxysmal positional vertigo (BPPV).

MATERIAL AND METHODS: A total of 120 BPPV patients and 60 healthy controls were enrolled according to the diagnostic criteria in the Guideline of Diagnosis and Treatment of Benign Paroxysmal Positional Vertigo (2017). Clinical and biochemical data were collected, the rs2074880 (T/G) polymorphisms in the CACNA1A gene were detected using TaqMan-MGB probe method, and the correlations of BPPV with predisposing factors were analyzed through logistic analysis.

RESULTS: The BPPV group had higher levels of cholesterol and uric acid than in the control group (p<0.05). The cholesterol and uric acid levels were positively correlated with BPPV (p<0.05) [odds ratio (OR)=2.298 (1.252–4.350), 95% confidence interval (95% CI)=1.123 (0.987–1.987)]. The distribution frequency of TT genotype was higher than that of GG genotype (χ²=9.907, p=0.002, OR=0.279, 95% CI=0.123–0.633). In the BPPV group, cholesterol and uric acid levels of TT genotype were elevated compared with those in GG genotype (p<0.05).

CONCLUSIONS: The onset of BPPV is related to the increased levels of cholesterol and uric acid, as well as the dominant homozygous mutation of rs2074880 (T/G) in the CACNA1A gene.

Keywords: Meniere Disease, Polymorphism, Genetic, Polymorphism, Single Nucleotide

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750