Association between bone mineral density and scoliosis: a two-sample mendelian randomization study in european populations.

Publisher: BioMed Central Ltd Country of Publication: England NLM ID: 0374654 Publication Model: Electronic Cited Medium: Internet ISSN: 1601-5223 (Electronic) Linking ISSN: 00180661 NLM ISO Abbreviation: Hereditas Subsets: MEDLINE

Publication: Oct. 2015- : London : BioMed Central Ltd.
Original Publication: Lund : Mendelska sällskapet.

Bone Density*/genetics ; Genome-Wide Association Study* ; Mendelian Randomization Analysis* ; Polymorphism, Single Nucleotide* ; Scoliosis*/genetics; Female ; Humans ; Male ; Europe ; Genetic Predisposition to Disease ; Lumbar Vertebrae ; White People/genetics

Background: Previous studies have shown that bone mineral density (BMD) has a certain impact on scoliosis. However, up to now, there is no clear evidence that there is a causal association between the two. The aim of this study is to investigate whether there is a causal association between BMD at different body positions and scoliosis by two-sample Mendelian randomization (MR).
Methods: Genetic variants (SNPS) strongly associated with BMD (total body BMD (TB-BMD), lumbar spine BMD (LS-BMD), femoral neck BMD (FN-BMD), heel BMD (HE-BMD), and forearm BMD (FA-BMD)) were extracted from GEFOS and genome-wide association analysis (GWAS) databases SNPs) were used as instrumental variables (IVs). Scoliosis was also selected from the Finnish database as the outcome. Inverse variance weighting (IVW) method was used as the main analysis method, and multiple sensitivity analysis was performed by combining weighted median, MR-Egger, MR Multi-effect residuals and outliers.
Results: IVW results showed that TB-BMD (OR = 0.83, 95%CI: 0.66-1.55 P = 0.13), LS-BMD (OR = 0.72, 95%CI: 0.52-0.99, P = 0.04), FN-BMD (OR = 0.74, 95%CI: 0.50-1.09, P = 0.13), FA-BMD (OR = 0.95,95%CI: 0.70-1.28, P = 0.75), HE-BMD (OR = 0.91, 95%CI: 0.77-1.08, P = 0.29). Sensitivity analyses showed no evidence of pleiotropy or heterogeneity (p > 0.05) (MR-PRESSO and Cochrane). The results were further validated by leave-one-out test and MR-Egger intercept, which confirmed the robustness of the study results.
Conclusion: In conclusion, the present study demonstrates that the causal role of genetic prediction of scoliosis increases with decreasing lumbar BMD. There was no evidence that BMD at the remaining sites has a significant causal effect on scoliosis. Our results suggest that the lumbar spine BMD should be routinely measured in the population at high risk of scoliosis. If osteoporosis occurs, appropriate treatment should be given to reduce the incidence of scoliosis.
Clinical Trial Number: Not applicable.
Competing Interests: Declarations. Ethics approval and consent to participate: Not applicable. Informed consent statement: Not applicable. Competing interests: The authors declare no competing interests.
(© 2024. The Author(s).)

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.Major Project of Gansu Province Joint Scientific Research Fund .Major Project of Gansu Province Joint Scientific Research Fund; 22JR5 RA632 Natural Science Foundation of Gansu Province

Keywords: Bone mineral density; Causality; Mendelian randomization; Scoliosis

Date Created: 20241231 Date Completed: 20241231 Latest Revision: 20250104

20250114

PMC11687161

10.1186/s41065-024-00352-w

39736789