Mohammad Bidkhori, Mahdi Akbarzadeh, Noushin Fahimfar, Bagher Larijani, Iraj Nabipour, Afshin Ostovar, Kourosh Holakouie-Naieni,
Volume 23, Issue 1 (6-2025)
Abstract
Background and Aim: The Trabecular Bone Score (TBS) is a novel tool for assessing bone microarchitecture and identifying individuals at risk for osteoporotic fractures. This study aimed to evaluate the association between Single Nucleotide Polymorphisms (SNPs) of the SOST gene and TBS in Iranian postmenopausal women.
Materials and Methods: This study included 1/071 postmenopausal women from the Bushehr Elderly Health (BEH) Cohort study. Relationship between Seven independent SNPs in the SOST gene located on chromosome 17q21.31 were investigated with TBS L1–L4. Associations were tested using generalized linear models under additive, dominant, and recessive genetic models. A genetic score was also calculated by summing the weighted number of risk alleles based on the regression coefficients of the SNPs.
Results: After adjustment for age and Body Mass Index (BMI), SNP rs2023794-C showed a statistically significant association with TBS in the additive model (β = 0/ 03, P = 4/7×10⁻⁵, PFDR = 0/0003) and the dominant model (β = 0/033, P = 2/5×10⁻⁵, PFDR = 0/0003). Furthermore, higher genetic scores were positively associated with increased TBS values.
Conclusion: Our findings highlight the potential role of SOST gene variants and derived genetic score in predicting bone quality in postmenopausal women. These genes could aid in identifying individuals at higher risk of poor bone quality and in developing personalized osteoporosis prevention strategies.
