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Gender difference in the association of OSBPL8 polymorphisms with nephrolithiasis within a Chinese cohort
Haisong Lin1, Suchun Wei2, Shengzhu Huang3
1Institute of Urology and Nephrology, First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning, Guangxi 530021, China; Departments of Urology, The Second Nanning People's Hospital, Nanning, Guangxi 530021, China; Center for Genomic and Personalized Medicine, Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi 530021, China.
Background:
Kidney stone disease (KSD) is a common disorder of the urinary system and is closely related to genetic polymorphisms. However, the relationship between OSBPL8 polymorphisms and kidney stones has not been thoroughly investigated.
Methods:
Six OSBPL8 polymorphisms (rs17042391,rs17042409,rs4761431,rs7303892,rs4761434, and rs17042390) were analyzed in a Chinese case-control cohort containing 923 nephrolithiasis patients and 945 healthy controls.The association of these OSBPL8 gene polymorphisms with KSD susceptibility was analyzed using logistic regression, and examined by calculating the odds ratios (ORs) and 95% confidence intervals (CIs).
Results:
The OSBPL8 polymorphisms (GG for rs17042391, rs17042409, rs4761431, rs7303892; AA for rs4761434; and G for rs17042390) were significantly associated with a decreased risk of KSD in females.The protected alleles (G allele of rs17042391, G allele of rs17042409, G allele of rs4761431, A allele of rs4761434, and G allele of rs17042390) were related to decreased BMI levels in KSD patients; female patients with these alleles also exhibited lower BMI, HDL, and LDL levels,the G allele of rs7303892 was linked to reduced serum cholesterol levels in these females.Additionally, the haplotype ACAAGA was associated with decreased KSD risk in females, but haplotype GGGGAG presented an opposing effect.
Conclusion:
Our research shows that the OSBPL8 gene polymorphisms reduced the risk of KSD in females, and were also associated with lipid-related metabolic traits.
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