Can Li1, Qin Huang2, Rui Yang3, Xiaodong Guo4, Yu Dai5, Junchao Zeng3, Yun Zeng6, Lailin Tao1, Xiaolong Li1, Haolong Zhou1, Qi Wang7. 1. MOE Key Lab of Environment and Health, Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 430030, Wuhan, China. 2. Department of Rehabilitation Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030, Wuhan, China. 3. Department of Health Checkup, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030, Wuhan, China. 4. Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030, Wuhan, China. 5. Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030, Wuhan, China. 6. Wuhan No.1 Hospital, 430030, Wuhan, China. 7. MOE Key Lab of Environment and Health, Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 430030, Wuhan, China. lwq95@126.com.
Abstract
PURPOSE: This study aimed to explore the association between low-frequency and rare variants of Wnt signaling genes and postmenopausal osteoporosis (OP) by the next generation sequencing (NGS) technology. METHODS: We performed targeted NGS of nine Wnt signaling genes in 400 Chinese postmenopausal women, including 226 cases with decreased bone mineral density (BMD) and 174 controls with normal values. Proxy External Controls Association Test (ProxECAT) and logistic regression analysis were performed by data from internal cases (n = 226) and Genome Aggregation Database (gnomAD) East Asian controls (n = 9435). RESULTS: The genomic region of interest (ROI) of 94 functional low-frequency and rare variants was associated with OP risk (P < 0.05). The LGR6 gene was associated significantly with OP risk and BMD measurements (BMD, T-score and Z-score) (adjusted-P < 0.05) after adjusting for confounders. The allele A of rs199693693 (K82N) in LRP6 and G of novel variant 1: 202287949 (R840G) in LGR6 were associated with higher BMD, T-score, and Z-score (all adjusted-P < 0.05). ProxECAT showed that LGR4 was significantly different between the internal cases and the external controls (all adjusted-P < 0.05). Logistic regression analysis revealed that the allele G of rs765778410 (T645A) (OR = 26.16, 95% CI: 4.36-156.95, adjusted-P value = 0.026) in LGR6 and A of rs61370283 (L987M) (OR = 15.39, 95% CI: 2.98-79.55, adjusted-P value = 0.037) in LRP5 were associated with increased risk of postmenopausal OP. CONCLUSION: The LGR4 and LGR6 genes and four potential functional rare variants associate with postmenopausal OP risk. These results highlight the significance of rare functional variants in postmenopausal OP genetics and provide new insights into the potential mutations in this field.
PURPOSE: This study aimed to explore the association between low-frequency and rare variants of Wnt signaling genes and postmenopausal osteoporosis (OP) by the next generation sequencing (NGS) technology. METHODS: We performed targeted NGS of nine Wnt signaling genes in 400 Chinese postmenopausal women, including 226 cases with decreased bone mineral density (BMD) and 174 controls with normal values. Proxy External Controls Association Test (ProxECAT) and logistic regression analysis were performed by data from internal cases (n = 226) and Genome Aggregation Database (gnomAD) East Asian controls (n = 9435). RESULTS: The genomic region of interest (ROI) of 94 functional low-frequency and rare variants was associated with OP risk (P < 0.05). The LGR6 gene was associated significantly with OP risk and BMD measurements (BMD, T-score and Z-score) (adjusted-P < 0.05) after adjusting for confounders. The allele A of rs199693693 (K82N) in LRP6 and G of novel variant 1: 202287949 (R840G) in LGR6 were associated with higher BMD, T-score, and Z-score (all adjusted-P < 0.05). ProxECAT showed that LGR4 was significantly different between the internal cases and the external controls (all adjusted-P < 0.05). Logistic regression analysis revealed that the allele G of rs765778410 (T645A) (OR = 26.16, 95% CI: 4.36-156.95, adjusted-P value = 0.026) in LGR6 and A of rs61370283 (L987M) (OR = 15.39, 95% CI: 2.98-79.55, adjusted-P value = 0.037) in LRP5 were associated with increased risk of postmenopausal OP. CONCLUSION: The LGR4 and LGR6 genes and four potential functional rare variants associate with postmenopausal OP risk. These results highlight the significance of rare functional variants in postmenopausal OP genetics and provide new insights into the potential mutations in this field.
Entities:
Keywords:
Next generation sequencing; Postmenopausal osteoporosis; Wnt/β-catenin signaling
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