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Li L, Wu X, Zhang H, Liao E, Dai R, Wu X. Comparison of femoral neck geometric parameters between Chinese and Japanese females. ZHONG NAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF CENTRAL SOUTH UNIVERSITY. MEDICAL SCIENCES 2022; 47:319-327. [PMID: 35545324 PMCID: PMC10930054 DOI: 10.11817/j.issn.1672-7347.2022.210456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Indexed: 06/15/2023]
Abstract
OBJECTIVES Femoral neck fracture is the most serious osteoporotic fractures that is responsible for high medical costs and high mortality. Femoral neck geometric parameters (FNGPs) are important parameters that reflect the geometrical characteristics of femoral neck, and are closely related to the strength of femoral neck and the risk of fragility fracture.There are differences in the incidence of femoral neck fractures among races. However, whether there is difference in FNGPs among races is unknown.Therefore, this study aims to compare the differences in FNGPs between Chinese and Japanese females. METHODS This study was a cross-sectional study, in which 3 859 healthy females aged 10-86 (45.7±17.1) years old were recruited from Changsha City of Hunan Province and surrounding areas. The weight and height were measured and recorded, and the body mass index (BMI) was calculated. A dual energy X-ray absorptiometry (DXA) bone densitometer was used to measure femoral neck projective bone area (BA) and bone mineral density (BMD). FNGPs were calculated using the BMD and BA, which included the outer diameter (OD), cross-sectional area (CSA), cortical thickness (CT), endocortical diameter (ED), buckling ratio (BR), section modulus (SM), cross-sectional moment of inertia (CSMI), and compression strength index (CSI). The data of FNGPs in Japanese females was collected from literature. These subjects were grouped by 10-year age. The mean and standard deviation of height, weight, BMI, femoral neck BMD, and FNGPs of each group were calculated. The model with the best goodness-of-fit was selected from various mathematical regression models to analyze the distribution trend and the best fitting curve of FNGPs with age. The differences in FNGPs between Chinese and Japanese females were analyzed by using age-corresponding mean fitting curve for paired t-test, and the relative change rates of FNGPs were compared. RESULTS The mean values of FNGPs were significantly different among different years old healthy females (all P<0.01). The mean values of OD, CSA, CT, SM, and CSMI in femoral neck were high at 30 to 39 years old, and then they were gradually decreased with age. The CSI reached its peak at 20-29 years old, and it was decreased gradually after 30 years old. ED and BR were at a low level before 40 years old, they were gradually increased after 40 years old, and reached the maximum average value at 80-86 years old. The variations in FNGPs with age were fitted with the best goodness-of-fit by applying the cubic regression model and the determination coefficients of regression equations (R2: 0.062-0.404) were significant (all P<0.01). The distribution trend of FNGPs with age varied with the indices, among which CSA, CT, SM, CSMI and CSI were increased with age before 35 years old, and then they were decreased with age; BR was at a low level in the early stage, and then it was increased with age after about 40 years. There were significant differences in the fitting curves of FNGPs related to age between Chinese and Japanese females (all P<0.01). The fitting curves of OD, ED, BR and SM in Chinese females were significantly higher than those in Japanese females (all P<0.01), while those of CSA and CT in Chinese females were significantly lower than those in Japanese females (all P<0.01). Before the age of 50, the curves of CSMI and CSI of Chinese females were significantly higher than those of Japanese females (all P<0.01), while after the age of 60 the situation was reversed (all P<0.01). Except for SM and CSI, there were significant differences in the rate of OD, CSA, CT, ED, BR and CSMI with age (all P<0.01). By the age of 80 years old, the rates of change in OD, ED, and BR with the age in Chinese females were increased by 0.91%,3.94%, and 47.5%, respectively, while those in Japanese females were increased by 8.57%, 15.8% and 85.3%, respectively;the rates of change of CSA, CT, and CSMI with the age in Chinese females were declined 28.0%, 29.6%, and 25.2%, respectively, while those in Japanese females were declined 29.9%, 36.2%, and 10.9%, respectively. There were significant difference in the rates of change in FNGPs with the age between Chinese and Japanese females (all P<0.01). CONCLUSIONS The study reveals the variation of FNGPs with age in Chinese, and confirms that there are racial differences in FNGPs between Chinese and Japanese females, which may be one of the important reasons for the difference in the incidence of femoral neck fracture between Chinese and Japanese females.
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Affiliation(s)
- Lin Li
- Department of Metabolism and Endocrinology, Second Xiangya Hospital, Central South University; National Clinical Research Center for Metabolic Diseases; Hunan Provincial Key Laboratory of Metabolic Bone Diseases, Changsha 410011.
- Department of Endocrinology and Metabolism, First Hospital of Changsha, Changsha 410005, China.
| | - Xianping Wu
- Department of Metabolism and Endocrinology, Second Xiangya Hospital, Central South University; National Clinical Research Center for Metabolic Diseases; Hunan Provincial Key Laboratory of Metabolic Bone Diseases, Changsha 410011
| | - Hong Zhang
- Department of Metabolism and Endocrinology, Second Xiangya Hospital, Central South University; National Clinical Research Center for Metabolic Diseases; Hunan Provincial Key Laboratory of Metabolic Bone Diseases, Changsha 410011
| | - Eryuan Liao
- Department of Metabolism and Endocrinology, Second Xiangya Hospital, Central South University; National Clinical Research Center for Metabolic Diseases; Hunan Provincial Key Laboratory of Metabolic Bone Diseases, Changsha 410011
| | - Ruchun Dai
- Department of Metabolism and Endocrinology, Second Xiangya Hospital, Central South University; National Clinical Research Center for Metabolic Diseases; Hunan Provincial Key Laboratory of Metabolic Bone Diseases, Changsha 410011.
| | - Xiyu Wu
- Department of Metabolism and Endocrinology, Second Xiangya Hospital, Central South University; National Clinical Research Center for Metabolic Diseases; Hunan Provincial Key Laboratory of Metabolic Bone Diseases, Changsha 410011.
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Shen Y, Tang ML, Wu XP, Yuan LQ, Dai RC, Zhang H, Sheng ZF, Peng YQ, Luo XH, Wu XY, Liao EY. Gender differences in a reference database of age-related femoral neck geometric parameters for Chinese population and their association with femoral neck fractures. Bone 2016; 93:64-70. [PMID: 27641474 DOI: 10.1016/j.bone.2016.09.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 08/15/2016] [Accepted: 09/15/2016] [Indexed: 10/21/2022]
Abstract
Femoral neck geometric parameters (FNGPs) are closely related to the strength of the femoral neck and the risk of fragility fractures. No reference database is available for FNGPs for Chinese population, and gender-related differences in FNGPs as well as their association with the risk of femoral neck fractures are unknown. This investigation aimed to set up reference databases for FNGPs, understand gender-related differences in FNGPs, and examine the association between FNGPs and the risk of osteoporotic fractures of the femoral neck. This study included 5268 females and 2156 males (aged 15-91years) from Chinese population. A total of 384 patients (282 females and 102 males) had sustained femoral neck fractures; 384 age- and sex-matched individuals without any fractures served as controls. Femoral neck DXA images were used to measure bone mineral density (BMD) and eight FNGPs. Our results showed that the age-related trends of FNGPs were fitted with the best goodness-of-fit by applying the cubic regression model. The trends shown by FNGPs were significantly different between male and female subjects, and the fitting curves were significantly higher in male subjects. After adjustments were made for age, height, weight, and body mass index, Cox regression analysis showed that changes in all FNGPs were related to increased hazard ratios (HRs) of femoral neck fractures. After further adjustment was made for BMD of the femoral neck, the HRs related to a cortical thickness (CT) decrease and buckling ratio (BR) increase in females went up by 3.35-folds (95% CI: 2.75-4.07) and 1.86-folds (95% CI: 1.33-2.60), respectively. In males, the HRs related to the decrease in CT and cross-sectional area (CSA) increased by 3.21-folds (95% CI: 2.32-4.45) and 1.88-folds (95% CI: 1.03-3.44), respectively. In conclusions, the reference databases of FNGPs established in this study will assist in the evaluation and prediction of femoral neck fracture risk in the clinic. The decrease in CT and increase in BR of the femoral neck were independent risk factors for osteoporotic fractures of the femoral neck in females from mainland China, while a decrease in CT and CSA were risk factors in male.
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Affiliation(s)
- Yi Shen
- National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Institute of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Department of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Department of Orthopedics, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China
| | - Meng-Lu Tang
- National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Institute of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Department of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Heze Hospital of Traditional Chinese Medicine, Shandong Province, No.1036 Danyang Road, Heze, Shandong 274000, PR China
| | - Xian-Ping Wu
- National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Institute of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Department of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China
| | - Ling-Qing Yuan
- National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Institute of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Department of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China
| | - Ru-Chun Dai
- National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Institute of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Department of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China
| | - Hong Zhang
- National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Institute of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Department of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China
| | - Zhi-Feng Sheng
- National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Institute of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Department of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China
| | - Yi-Qun Peng
- National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Institute of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Department of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China
| | - Xiang-Hang Luo
- National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Institute of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Department of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China
| | - Xi-Yu Wu
- National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Institute of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Department of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China.
| | - Er-Yuan Liao
- National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Institute of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; Department of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China
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Wang W, Hao J, Zheng S, Fan Q, He A, Wen Y, Guo X, Wu C, Wang S, Yang T, Shen H, Chen X, Tian Q, Tan L, Deng HW, Zhang F. Tissue-specific pathway association analysis using genome-wide association study summaries. Bioinformatics 2016; 33:243-247. [PMID: 27651483 DOI: 10.1093/bioinformatics/btw595] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 08/20/2016] [Accepted: 09/08/2016] [Indexed: 01/25/2023] Open
Abstract
MOTIVATION Pathway association analysis has made great achievements in elucidating the genetic basis of human complex diseases. However, current pathway association analysis approaches fail to consider tissue-specificity. RESULTS We developed a tissue-specific pathway interaction enrichment analysis algorithm (TPIEA). TPIEA was applied to two large Caucasian and Chinese genome-wide association study summary datasets of bone mineral density (BMD). TPIEA identified several significant pathways for BMD [false discovery rate (FDR) < 0.05], such as KEGG FOCAL ADHESION and KEGG AXON GUIDANCE, which had been demonstrated to be involved in the development of osteoporosis. We also compared the performance of TPIEA and classical pathway enrichment analysis, and TPIEA presented improved performance in recognizing disease relevant pathways. TPIEA may help to fill the gap of classic pathway association analysis approaches by considering tissue specificity. AVAILABILITY AND IMPLEMENTATION The online web tool of TPIEA is available at https://sourceforge.net/projects/tpieav1/files CONTACT: fzhxjtu@mail.xjtu.edu.cnSupplementary information: Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Wenyu Wang
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center
| | - Jingcan Hao
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center
| | - Shuyu Zheng
- Department of Radiation Oncology, First Affiliated Hospital, Health Science Center
| | - Qianrui Fan
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center
| | - Awen He
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center
| | - Yan Wen
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center
| | - Xiong Guo
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center
| | - Cuiyan Wu
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center
| | - Sen Wang
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center
| | - Tielin Yang
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Hui Shen
- Department of Biostatistics and Bioinformatics, Tulane University School of Public Health and Tropical Medicine.,Center for Bioinformatics and Genomics, Tulane University, New Orleans, LA, USA
| | - Xiangding Chen
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, P. R. China
| | - Qing Tian
- Department of Biostatistics and Bioinformatics, Tulane University School of Public Health and Tropical Medicine.,Center for Bioinformatics and Genomics, Tulane University, New Orleans, LA, USA
| | - Lijun Tan
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, P. R. China
| | - Hong-Wen Deng
- Department of Biostatistics and Bioinformatics, Tulane University School of Public Health and Tropical Medicine.,Center for Bioinformatics and Genomics, Tulane University, New Orleans, LA, USA
| | - Feng Zhang
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center
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Garg G, Kumar J, McGuigan FE, Ridderstråle M, Gerdhem P, Luthman H, Åkesson K. Variation in the MC4R gene is associated with bone phenotypes in elderly Swedish women. PLoS One 2014; 9:e88565. [PMID: 24516669 PMCID: PMC3916440 DOI: 10.1371/journal.pone.0088565] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Accepted: 12/30/2013] [Indexed: 01/01/2023] Open
Abstract
Osteoporosis is characterized by reduced bone mineral density (BMD) and increased fracture risk. Fat mass is a determinant of bone strength and both phenotypes have a strong genetic component. In this study, we examined the association between obesity associated polymorphisms (SNPs) with body composition, BMD, Ultrasound (QUS), fracture and biomarkers (Homocysteine (Hcy), folate, Vitamin D and Vitamin B12) for obesity and osteoporosis. Five common variants: rs17782313 and rs1770633 (melanocortin 4 receptor (MC4R); rs7566605 (insulin induced gene 2 (INSIG2); rs9939609 and rs1121980 (fat mass and obesity associated (FTO) were genotyped in 2 cohorts of Swedish women: PEAK-25 (age 25, n = 1061) and OPRA (age 75, n = 1044). Body mass index (BMI), total body fat and lean mass were strongly positively correlated with QUS and BMD in both cohorts (r2 = 0.2–0.6). MC4R rs17782313 was associated with QUS in the OPRA cohort and individuals with the minor C-allele had higher values compared to T-allele homozygotes (TT vs. CT vs. CC: BUA: 100 vs. 103 vs. 103; p = 0.002); (SOS: 1521 vs. 1526 vs. 1524; p = 0.008); (Stiffness index: 69 vs. 73 vs. 74; p = 0.0006) after adjustment for confounders. They also had low folate (18 vs. 17 vs. 16; p = 0.03) and vitamin D (93 vs. 91 vs. 90; p = 0.03) and high Hcy levels (13.7 vs 14.4 vs. 14.5; p = 0.06). Fracture incidence was lower among women with the C-allele, (52% vs. 58%; p = 0.067). Variation in MC4R was not associated with BMD or body composition in either OPRA or PEAK-25. SNPs close to FTO and INSIG2 were not associated with any bone phenotypes in either cohort and FTO SNPs were only associated with body composition in PEAK-25 (p≤0.001). Our results suggest that genetic variation close to MC4R is associated with quantitative ultrasound and risk of fracture.
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Affiliation(s)
- Gaurav Garg
- Clinical and Molecular Osteoporosis Research Unit, Department of Clinical Sciences, Lund University and Department of Orthopaedics, Skåne University Hospital, Malmö, Sweden
| | - Jitender Kumar
- Department of Medical Sciences, Molecular Epidemiology and Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Fiona E. McGuigan
- Clinical and Molecular Osteoporosis Research Unit, Department of Clinical Sciences, Lund University and Department of Orthopaedics, Skåne University Hospital, Malmö, Sweden
| | - Martin Ridderstråle
- Clinical Obesity Research, Department of Endocrinology, Skåne University Hospital, Malmö, Sweden
| | - Paul Gerdhem
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Department of Orthopaedics, Karolinska University Hospital, Stockholm, Sweden
| | - Holger Luthman
- Medical Genetics Unit, Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Kristina Åkesson
- Clinical and Molecular Osteoporosis Research Unit, Department of Clinical Sciences, Lund University and Department of Orthopaedics, Skåne University Hospital, Malmö, Sweden
- * E-mail:
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Tanabe S. Role of mesenchymal stem cells in cell life and their signaling. World J Stem Cells 2014; 6:24-32. [PMID: 24567785 PMCID: PMC3927011 DOI: 10.4252/wjsc.v6.i1.24] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Revised: 11/18/2013] [Accepted: 12/13/2013] [Indexed: 02/06/2023] Open
Abstract
Mesenchymal stem cells (MSCs) have various roles in the body and cellular environment, and the cellular phenotypes of MSCs changes in different conditions. MSCs support the maintenance of other cells, and the capacity of MSCs to differentiate into several cell types makes the cells unique and full of possibilities. The involvement of MSCs in the epithelial-mesenchymal transition is an important property of these cells. In this review, the role of MSCs in cell life, including their application in therapy, is first described, and the signaling mechanism of MSCs is investigated for a further understanding of these cells.
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Eph–ephrin bidirectional signalling: A promising approach for osteoporosis treatment. JOURNAL OF MEDICAL HYPOTHESES AND IDEAS 2013. [DOI: 10.1016/j.jmhi.2013.02.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Ran S, Pei YF, Liu YJ, Zhang L, Han YY, Hai R, Tian Q, Lin Y, Yang TL, Guo YF, Shen H, Thethi IS, Zhu XZ, Deng HW. Bivariate genome-wide association analyses identified genes with pleiotropic effects for femoral neck bone geometry and age at menarche. PLoS One 2013; 8:e60362. [PMID: 23593202 PMCID: PMC3617200 DOI: 10.1371/journal.pone.0060362] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Accepted: 02/26/2013] [Indexed: 02/05/2023] Open
Abstract
Femoral neck geometric parameters (FNGPs), which include cortical thickness (CT), periosteal diameter (W), buckling ratio (BR), cross-sectional area (CSA), and section modulus (Z), contribute to bone strength and may predict hip fracture risk. Age at menarche (AAM) is an important risk factor for osteoporosis and bone fractures in women. Some FNGPs are genetically correlated with AAM. In this study, we performed a bivariate genome-wide association study (GWAS) to identify new candidate genes responsible for both FNGPs and AAM. In the discovery stage, we tested 760,794 SNPs in 1,728 unrelated Caucasian subject, followed by replication analyses in independent samples of US Caucasians (with 501 subjects) and Chinese (with 826 subjects). We found six SNPs that were associated with FNGPs and AAM. These SNPs are located in three genes (i.e. NRCAM, IDS and LOC148145), suggesting these three genes may co-regulate FNGPs and AAM. Our findings may help improve the understanding of genetic architecture and pathophysiological mechanisms underlying both osteoporosis and AAM.
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Affiliation(s)
- Shu Ran
- Center of System Biomedical Sciences, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, P. R. China
| | - Yu-Fang Pei
- Center of System Biomedical Sciences, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, P. R. China
| | - Yong-Jun Liu
- School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana, United States of America
| | - Lei Zhang
- Center of System Biomedical Sciences, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, P. R. China
| | - Ying-Ying Han
- Center of System Biomedical Sciences, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, P. R. China
| | - Rong Hai
- Inner Mongolia People’s Hospital, Hohhot, P. R. China
| | - Qing Tian
- School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana, United States of America
| | - Yong Lin
- Center of System Biomedical Sciences, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, P. R. China
| | - Tie-Lin Yang
- School of Life Science and Technology, Xi’an Jiaotong University, Xi’an, Shanxi, P. R. China
| | - Yan-Fang Guo
- School of Basic Medical Science, Institute of Bioinformatics, Southern Medical University, Guangzhou, Guangdong, P. R. China
| | - Hui Shen
- School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana, United States of America
| | - Inderpal S. Thethi
- School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana, United States of America
| | - Xue-Zhen Zhu
- Center of System Biomedical Sciences, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, P. R. China
| | - Hong-Wen Deng
- School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana, United States of America
- Center of System Biomedical Sciences, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, P. R. China
- * E-mail:
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Osborne DL, Weaver CM, McCabe LD, McCabe GP, Novotny R, Van Loan MD, Going S, Matkovic V, Boushey CJ, Savaiano DA. Body size and pubertal development explain ethnic differences in structural geometry at the femur in Asian, Hispanic, and white early adolescent girls living in the U.S. Bone 2012; 51:888-95. [PMID: 22944607 PMCID: PMC3491564 DOI: 10.1016/j.bone.2012.08.125] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Revised: 08/16/2012] [Accepted: 08/18/2012] [Indexed: 12/21/2022]
Abstract
UNLABELLED Variation in structural geometry is present in adulthood, but when this variation arises and what influences this variation prior to adulthood remains poorly understood. Ethnicity is commonly the focus of research of skeletal integrity and appears to explain some of the variation in quantification of bone tissue. However, why ethnicity explains variation in skeletal integrity is unclear. METHODS Here we examine predictors of bone cross sectional area (CSA) and section modulus (Z), measured using dual-energy X-ray absorptiometry (DXA) and the Advanced Hip Analysis (AHA) program at the narrow neck of the femur in adolescent (9-14 years) girls (n=479) living in the United States who were classified as Asian, Hispanic, or white if the subject was 75% of a given group based on parental reported ethnicity. Protocols for measuring height and weight follow standardized procedures. Total body lean mass (LM) and total body fat mass (FM) were quantified in kilograms using DXA. Total dietary and total dairy calcium intakes from the previous month were estimated by the use of an electronic semi-quantitative food frequency questionnaire (eFFQ). Physical activity was estimated for the previous year by a validated self-administered modifiable activity questionnaire for adolescents with energy expenditure calculated from the metabolic equivalent (MET) values from the Compendium of Physical Activities. Multiple regression models were developed to predict CSA and Z. RESULTS Age, time from menarche, total body lean mass (LM), total body fat mass (FM), height, total calcium, and total dairy calcium all shared a significant (p<0.05), positive relationship with CSA. Age, time from menarche, LM, FM, and height shared significant (p<0.05), positive relationships with Z. For both CSA and Z, LM was the most important covariate. Physical activity was not a significant predictor of geometry at the femoral neck (p≥0.339), even after removing LM as a covariate. After adjusting for covariates, ethnicity was not a significant predictor in regression models for CSA and Z. CONCLUSION Variability in bone geometry at the narrow neck of the femur is best explained by body size and pubertal maturation. After controlling for these covariates there were no differences in bone geometry between ethnic groups.
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Affiliation(s)
- D L Osborne
- Dept. of Anthropology, University of Nebraska, Lincoln, NE 68588, USA.
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9
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Piters E, de Freitas F, Nielsen TL, Andersen M, Brixen K, Van Hul W. Association study of polymorphisms in the SOST gene region and parameters of bone strength and body composition in both young and elderly men: data from the Odense Androgen Study. Calcif Tissue Int 2012; 90:30-9. [PMID: 22076526 DOI: 10.1007/s00223-011-9546-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2011] [Accepted: 09/17/2011] [Indexed: 10/15/2022]
Abstract
By means of different genetic association studies the SOST gene, encoding sclerostin, has repeatedly been suggested to regulate bone mineral density (BMD) and osteoporosis susceptibility. This study aimed at a further understanding of the importance of two previously studied single-nucleotide polymorphisms in the SOST gene, rs10534024 (SRP3) and rs9902563 (SRP9), in the Odense Androgen Study (OAS) cohort. This cohort includes a total of 1,383 Danish men from two different age groups, 20-29 years (n = 783) and 60-74 years (n = 600), and is well characterized. Subjects were phenotyped for BMD at several sites and additionally for body composition and hip geometric parameters. In a combined analysis of the young and the elderly OAS, no associations were found for SRP3 either with BMD or with hip geometry. Instead, we found that this polymorphism had a relatively large effect on weight (-1.149 kg) and body mass index (-0.389 kg/m(2)) (P = 0.021 and 0.006 under a codominant model). For SRP9, a significant association was found for femoral neck BMD (+0.020 g/cm(2), P = 0.020) and a trend toward significance for hip geometry (buckling ratio of the narrow neck) but only when considering a recessive effect of the minor allele (C). No age-specific effects were found for either of the two SNPs. In summary, we are the first to find interesting associations between SRP3 and body composition. For SRP9, we replicated a site-specific association with femoral neck BMD. In addition, we report a novel association for this polymorphism with hip geometry.
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Affiliation(s)
- Elke Piters
- Department of Medical Genetics, University and University Hospital of Antwerp, Prins Boudewijnlaan 43B, 2650 Edegem, Belgium
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10
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Sun L, Tan LJ, Lei SF, Chen XD, Li X, Pan R, Yin F, Liu QW, Yan XF, Papasian CJ, Deng HW. Bivariate genome-wide association analyses of femoral neck bone geometry and appendicular lean mass. PLoS One 2011; 6:e27325. [PMID: 22087292 PMCID: PMC3210160 DOI: 10.1371/journal.pone.0027325] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2011] [Accepted: 10/13/2011] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE Femoral neck geometric parameters (FNGPs), such as periosteal diameter (W), cross-sectional area (CSA), cortical thickness (CT), buckling ratio (BR), and section modulus (Z), are highly genetically correlated with body lean mass. However, the specific SNPs/genes shared by these phenotypes are largely unknown. METHODS To identify the specific SNPs/genes shared between FNGPs and appendicular lean mass (ALM), we performed an initial bivariate genome-wide association study (GWAS) by scanning ∼690,000 SNPs in 1,627 unrelated Han Chinese adults (802 males and 825 females) and a follow-up replicate study in 2,286 unrelated US Caucasians. RESULTS We identified 13 interesting SNPs that may be important for both FNGPs and ALM. Two SNPs, rs681900 located in the HK2 (hexokinase 2) gene and rs11859916 in the UMOD (uromodulin) gene, were bivariately associated with FNGPs and ALM (p = 7.58×10(-6) for ALM-BR and p = 2.93×10(-6) for ALM-W, respectively). The associations were then replicated in Caucasians, with corresponding p values of 0.024 for rs681900 and 0.047 for rs11859916. Meta-analyses yielded combined p values of 3.05×10(-6) and 2.31×10(-6) for rs681900 and rs11859916, respectively. Our findings are consistent with previous biological studies that implicated HK2 and UMOD in both FNGPs and ALM. Our study also identified a group of 11 contiguous SNPs, which spanned a region of ∼130 kb, were bivariately associated with FNGPs and ALM, with p values ranging from 3.06×10(-7) to 4.60×10(-6) for ALM-BR. The region contained two neighboring miRNA coding genes, MIR873 (MicroRNA873) and MIR876 (MicroRNA876). CONCLUSION Our study implicated HK2, UMOD, MIR873 and MIR876, as pleiotropic genes underlying variation of both FNGPs and ALM, thus suggesting their important functional roles in co-regulating both FNGPs and ALM.
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Affiliation(s)
- Lu Sun
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Li-Jun Tan
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, China
- Center for Bioinformatics and Genomics, Department of Biostatistics, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana, United States of America
| | - Shu-Feng Lei
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Xiang-Ding Chen
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Xi Li
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Rong Pan
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Fang Yin
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Quan-Wei Liu
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Xiao-Feng Yan
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Christopher J. Papasian
- Departments of Orthopedic Surgery and Basic Medical Sciences, School of Medicine, University of Missouri - Kansas City, Kansas City, Missouri, United States of America
| | - Hong-Wen Deng
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, China
- Center for Bioinformatics and Genomics, Department of Biostatistics, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana, United States of America
- Departments of Orthopedic Surgery and Basic Medical Sciences, School of Medicine, University of Missouri - Kansas City, Kansas City, Missouri, United States of America
- Center of Systematic Biomedical Research, Shanghai University of Science and Technology, Shanghai, China
- College of Life Sciences and Technology, Beijing Jiao Tong University, Beijing, China
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11
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Zhang YP, Liu YZ, Guo Y, Liu XG, Xu XH, Guo YF, Chen Y, Zhang F, Pan F, Zhu XZ, Deng HW. Pathway-based association analyses identified TRAIL pathway for osteoporotic fractures. PLoS One 2011; 6:e21835. [PMID: 21760914 PMCID: PMC3132733 DOI: 10.1371/journal.pone.0021835] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Accepted: 06/12/2011] [Indexed: 12/29/2022] Open
Abstract
Introduction Hip OF carries the highest morbidity and mortality. Previous studies revealed that individual genes/loci in the Tumor Necrosis Factor (TNF) -Related Apoptosis-Inducing Ligand (TRAIL) pathway were associated with bone metabolism. This study aims to verify the potential association between hip OF and TRAIL pathway. Methods Using genome-wide genotype data from Affymetrix 500 K SNP arrays, we performed novel pathway-based association analyses for hip OF in 700 elderly Chinese Han subjects (350 with hip OF and 350 healthy matched controls). Results The TRAIL pathway achieved a significant p value (p = 0.01) for association with hip OF. Among the 38 genes in the TRAIL pathway, seven genes achieved nominally significant association with hip OF (p<0.05); the TNFSF10 (TRAIL) gene obtained the most significant p value (p = 1.70×10−4). SNPs (rs719126, rs6533015, rs9594738, rs1805034, rs11160706) from five genes (CFLAR, NFKB1, TNFSF11, TNFRSF11A, TRAF3) of the pathway had minor alleles that appear to be protective to hip OF. SNPs (rs6445063 and rs4259415) from two genes (TNFSF10 and TNFRSF10B) of the pathway had minor alleles (A) that are associated with an increased risk of hip OF, with the ORs (odds ratios) of 16.51 (95%CI:3.83–71.24) and 1.37 (95%CI:1.08–1.74), respectively. Conclusions Our study supports the potential role of the TRAIL pathway in the pathogenesis of hip OF in Chinese Han population. Further functional study of this pathway will be pursued to determine the mechanism by which it confers risk to hip OF.
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Affiliation(s)
- Yin-Ping Zhang
- The Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University College of Medicine, Ministry of Education, Xi'an, Shaanxi, People's Republic of China
- * E-mail: (Y-PZ); (H-WD)
| | - Yao-Zhong Liu
- Department of Biostatistics, Tulane University School of Public Health and Tropical Medicine, New Orleans, Louisiana, United States of America
| | - Yan Guo
- The Key Laboratory of Biomedical Information Engineering, Xi'an Jiaotong University School of Life Science and Technology, Ministry of Education and Institute of Molecular Genetics, Xi'an, Shaanxi, People's Republic of China
| | - Xiao-Gang Liu
- The Key Laboratory of Biomedical Information Engineering, Xi'an Jiaotong University School of Life Science and Technology, Ministry of Education and Institute of Molecular Genetics, Xi'an, Shaanxi, People's Republic of China
| | - Xiang-Hong Xu
- The Key Laboratory of Biomedical Information Engineering, Xi'an Jiaotong University School of Life Science and Technology, Ministry of Education and Institute of Molecular Genetics, Xi'an, Shaanxi, People's Republic of China
| | - Yan-Fang Guo
- The Key Laboratory of Biomedical Information Engineering, Xi'an Jiaotong University School of Life Science and Technology, Ministry of Education and Institute of Molecular Genetics, Xi'an, Shaanxi, People's Republic of China
| | - Yuan Chen
- The Key Laboratory of Biomedical Information Engineering, Xi'an Jiaotong University School of Life Science and Technology, Ministry of Education and Institute of Molecular Genetics, Xi'an, Shaanxi, People's Republic of China
| | - Feng Zhang
- The Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University College of Medicine, Ministry of Education, Xi'an, Shaanxi, People's Republic of China
| | - Feng Pan
- The Key Laboratory of Biomedical Information Engineering, Xi'an Jiaotong University School of Life Science and Technology, Ministry of Education and Institute of Molecular Genetics, Xi'an, Shaanxi, People's Republic of China
| | - Xue-Zhen Zhu
- University of Shanghai for Science and Technology, Shanghai, People's Republic of China
| | - Hong-Wen Deng
- Department of Biostatistics, Tulane University School of Public Health and Tropical Medicine, New Orleans, Louisiana, United States of America
- The Key Laboratory of Biomedical Information Engineering, Xi'an Jiaotong University School of Life Science and Technology, Ministry of Education and Institute of Molecular Genetics, Xi'an, Shaanxi, People's Republic of China
- University of Shanghai for Science and Technology, Shanghai, People's Republic of China
- * E-mail: (Y-PZ); (H-WD)
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12
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A genome-wide association study confirms APOE as the major gene influencing survival in long-lived individuals. Mech Ageing Dev 2011; 132:324-30. [PMID: 21740922 DOI: 10.1016/j.mad.2011.06.008] [Citation(s) in RCA: 153] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2010] [Revised: 06/14/2011] [Accepted: 06/23/2011] [Indexed: 01/02/2023]
Abstract
We conducted a case-control genome-wide association study (GWAS) of human longevity, comparing 664,472 autosomal SNPs in 763 long-lived individuals (LLI; mean age: 99.7 years) and 1085 controls (mean age: 60.2 years) from Germany. Only one association, namely that of SNP rs4420638 near the APOC1 gene, achieved genome-wide significance (allele-based P=1.8×10(-10)). However, logistic regression analysis revealed that this association, which was replicated in an independent German sample, is fully explicable by linkage disequilibrium with the APOE allele ɛ4, the only variant hitherto established as a major genetic determinant of survival into old age. Our GWAS failed to identify any additional autosomal susceptibility genes. One explanation for this lack of success in our study would be that GWAS provide only limited statistical power for a polygenic phenotype with loci of small effect such as human longevity. A recent GWAS in Dutch LLI independently confirmed the APOE-longevity association, thus strengthening the conclusion that this locus is a very, if not the most, important genetic factor influencing longevity.
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13
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Wang K, Li M, Hakonarson H. Analysing biological pathways in genome-wide association studies. Nat Rev Genet 2010; 11:843-54. [PMID: 21085203 DOI: 10.1038/nrg2884] [Citation(s) in RCA: 581] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Genome-wide association (GWA) studies have typically focused on the analysis of single markers, which often lacks the power to uncover the relatively small effect sizes conferred by most genetic variants. Recently, pathway-based approaches have been developed, which use prior biological knowledge on gene function to facilitate more powerful analysis of GWA study data sets. These approaches typically examine whether a group of related genes in the same functional pathway are jointly associated with a trait of interest. Here we review the development of pathway-based approaches for GWA studies, discuss their practical use and caveats, and suggest that pathway-based approaches may also be useful for future GWA studies with sequencing data.
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Affiliation(s)
- Kai Wang
- Center for Applied Genomics, The Childrens Hospital of Philadelphia, Pennsylvania 19104, USA
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14
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Xu XH, Dong SS, Guo Y, Yang TL, Lei SF, Papasian CJ, Zhao M, Deng HW. Molecular genetic studies of gene identification for osteoporosis: the 2009 update. Endocr Rev 2010; 31:447-505. [PMID: 20357209 PMCID: PMC3365849 DOI: 10.1210/er.2009-0032] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2009] [Accepted: 02/02/2010] [Indexed: 12/12/2022]
Abstract
Osteoporosis is a complex human disease that results in increased susceptibility to fragility fractures. It can be phenotypically characterized using several traits, including bone mineral density, bone size, bone strength, and bone turnover markers. The identification of gene variants that contribute to osteoporosis phenotypes, or responses to therapy, can eventually help individualize the prognosis, treatment, and prevention of fractures and their adverse outcomes. Our previously published reviews have comprehensively summarized the progress of molecular genetic studies of gene identification for osteoporosis and have covered the data available to the end of September 2007. This review represents our continuing efforts to summarize the important and representative findings published between October 2007 and November 2009. The topics covered include genetic association and linkage studies in humans, transgenic and knockout mouse models, as well as gene-expression microarray and proteomics studies. Major results are tabulated for comparison and ease of reference. Comments are made on the notable findings and representative studies for their potential influence and implications on our present understanding of the genetics of osteoporosis.
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Affiliation(s)
- Xiang-Hong Xu
- Institute of Molecular Genetics, Xi'an Jiaotong University, Shaanxi, People's Republic of China
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15
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Pan F, Liu XG, Guo YF, Chen Y, Dong SS, Qiu C, Zhang ZX, Zhou Q, Yang TL, Guo Y, Zhu XZ, Deng HW. The regulation-of-autophagy pathway may influence Chinese stature variation: evidence from elder adults. J Hum Genet 2010; 55:441-7. [PMID: 20448653 DOI: 10.1038/jhg.2010.44] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Recent success of genome-wide association studies (GWASs) on human height variation emphasized the effects of individual loci or genes. In this study, we used a developed pathway-based approach to further test biological pathways for potential association with stature, by examining approximately 370,000 single-nucleotide polymorphisms (SNPs) across the human genome in 618 unrelated elder Han Chinese. A total of 626 biological pathways annotated by any of the three major public pathway databases (KEGG, BioCarta and Ambion GeneAssist Pathway Atlas) were tested. The regulation-of-autophagy (ROA) (nominal P=0.012) pathway was marginally significantly associated with human stature after our family wise error rate multiple-testing correction. We also used 1000 random recruited US whites for further replication. Interestingly, the ROA pathway presented the strongest signals in whites for height variation (nominal P=0.002). The results correspond to biological roles of the ROA pathway in human long bone development and growth. Our findings also implied that multiple-genetic factors may work jointly as a functional unit (pathway), and the traditional GWASs could have missed important genetic information imbedded in those less significant markers.
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Affiliation(s)
- Feng Pan
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
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16
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Li WF, Hou SX, Yu B, Li MM, Férec C, Chen JM. Genetics of osteoporosis: accelerating pace in gene identification and validation. Hum Genet 2009; 127:249-85. [PMID: 20101412 DOI: 10.1007/s00439-009-0773-z] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2009] [Accepted: 11/25/2009] [Indexed: 02/06/2023]
Abstract
Osteoporosis is characterized by low bone mineral density and structural deterioration of bone tissue, leading to an increased risk of fractures. It is the most common metabolic bone disorder worldwide, affecting one in three women and one in eight men over the age of 50. In the past 15 years, a large number of genes have been reported as being associated with osteoporosis. However, only in the past 4 years we have witnessed an accelerated pace in identifying and validating osteoporosis susceptibility loci. This increase in pace is mostly due to large-scale association studies, meta-analyses, and genome-wide association studies of both single nucleotide polymorphisms and copy number variations. A comprehensive review of these developments revealed that, to date, at least 15 genes (VDR, ESR1, ESR2, LRP5, LRP4, SOST, GRP177, OPG, RANK, RANKL, COLIA1, SPP1, ITGA1, SP7, and SOX6) can be reasonably assigned as confirmed osteoporosis susceptibility genes, whereas, another >30 genes are promising candidate genes. Notably, confirmed and promising genes are clustered in three biological pathways, the estrogen endocrine pathway, the Wnt/beta-catenin signaling pathway, and the RANKL/RANK/OPG pathway. New biological pathways will certainly emerge when more osteoporosis genes are identified and validated. These genetic findings may provide new routes toward improved therapeutic and preventive interventions of this complex disease.
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Affiliation(s)
- Wen-Feng Li
- Department of Orthopaedics, The First Affiliated Hospital, General Hospital of the People's Liberation Army, 100037 Beijing, China
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