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Zhang J, Hu W, Zou Z, Li Y, Kang F, Li J, Dong S. The role of lipid metabolism in osteoporosis: Clinical implication and cellular mechanism. Genes Dis 2024; 11:101122. [PMID: 38523674 PMCID: PMC10958717 DOI: 10.1016/j.gendis.2023.101122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 08/02/2023] [Accepted: 08/13/2023] [Indexed: 03/26/2024] Open
Abstract
In recent years, researchers have become focused on the relationship between lipids and bone metabolism balance. Moreover, many diseases related to lipid metabolism disorders, such as nonalcoholic fatty liver disease, atherosclerosis, obesity, and menopause, are associated with osteoporotic phenotypes. It has been clinically observed in humans that these lipid metabolism disorders promote changes in osteoporosis-related indicators bone mineral density and bone mass. Furthermore, similar osteoporotic phenotype changes were observed in high-fat and high-cholesterol-induced animal models. Abnormal lipid metabolism (such as increased oxidized lipids and elevated plasma cholesterol) affects bone microenvironment homeostasis via cross-organ communication, promoting differentiation of mesenchymal stem cells to adipocytes, and inhibiting commitment towards osteoblasts. Moreover, disturbances in lipid metabolism affect the bone metabolism balance by promoting the secretion of cytokines such as receptor activator of nuclear factor-kappa B ligand by osteoblasts and stimulating the differentiation of osteoclasts. Conclusively, this review addresses the possible link between lipid metabolism disorders and osteoporosis and elucidates the potential modulatory mechanisms and signaling pathways by which lipid metabolism affects bone metabolism balance. We also summarize the possible approaches and prospects of intervening lipid metabolism for osteoporosis treatment.
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Affiliation(s)
- Jing Zhang
- College of Bioengineering, Chongqing University, Chongqing 400044, China
- Department of Biomedical Materials Science, College of Biomedical Engineering, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Wenhui Hu
- Department of Biomedical Materials Science, College of Biomedical Engineering, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Zhi Zou
- College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Yuheng Li
- Department of Biomedical Materials Science, College of Biomedical Engineering, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Fei Kang
- Department of Biomedical Materials Science, College of Biomedical Engineering, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Jianmei Li
- Department of Biomedical Materials Science, College of Biomedical Engineering, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Shiwu Dong
- Department of Biomedical Materials Science, College of Biomedical Engineering, Army Medical University (Third Military Medical University), Chongqing 400038, China
- State Key Laboratory of Trauma and Chemical Poisoning, Army Medical University (Third Military Medical University), Chongqing 400038, China
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Pradhan S, Hon A, Xia Y, Kalanski S, Safvati N, Lu M, Demer LL, Tintut Y. Effects of LP533401 on vascular and bone calcification in hyperlipidemic mice. Biochem Biophys Res Commun 2024; 710:149854. [PMID: 38581947 DOI: 10.1016/j.bbrc.2024.149854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/08/2024]
Abstract
Peripheral serotonin levels are associated with cardiovascular disease risk. We previously found that serum serotonin levels are higher in hyperlipidemic mice than wild-type mice. Evidence also suggests that serotonin regulates biomineralization, in that serotonin treatment augments TNF-a-induced matrix calcification of aortic valve interstitial cells and that a selective inhibitor of peripheral serotonin, LP533401, rescues bone loss induced by ovariectomy in mice. Thus, in the present study, we examined the effects of LP533401 on both skeletal bone mineral density (BMD) and aortic calcification in both young and older hyperlipidemic mice susceptible to calcific atherosclerosis and bone loss. By serial in vivo microCT imaging, we assessed BMD and aortic calcification of Apoe-/- mice fed an atherogenic (high cholesterol) diet alone or mixed with LP533401. Results show that in the young mice, LP533401 blunted skeletal bone loss in lumbar vertebrae but not in femurs. LP533401 also blunted the initial development of aortic calcification but not its progression. Echocardiographic analysis showed that LP533401 blunted both hyperlipidemia-induced cardiac hypertrophy and left ventricular dysfunction. In the older mice, LP533401 increased the BMD of lumbar vertebrae but not of femurs. The aortic calcification progressed in both controls and LP533401-treated mice, but, at post-treatment, LP533401-treated mice had significantly less aortic calcification than the controls. These findings suggest that LP533401 mitigates adverse effects of hyperlipidemia on skeletal and vascular tissues in site- and stage-dependent manners.
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Affiliation(s)
- Stuti Pradhan
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Andy Hon
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Yuxuan Xia
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Sophia Kalanski
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Nora Safvati
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Mimi Lu
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Linda L Demer
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA, USA; Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, USA; Department of Physiology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Yin Tintut
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA, USA; Department of Physiology, University of California, Los Angeles, Los Angeles, CA, USA; Department of Orthopaedic Surgery, University of California, Los Angeles, Los Angeles, CA, USA.
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Chen Q, Chen J, Zeng R, Shi J. Path analysis to identify factors influencing osteoporosis: A cross-sectional study. Exp Gerontol 2024; 188:112392. [PMID: 38447925 DOI: 10.1016/j.exger.2024.112392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 03/01/2024] [Accepted: 03/03/2024] [Indexed: 03/08/2024]
Abstract
BACKGROUND Osteoporosis is characterized by low bone mass and deterioration of bone tissue, which is influenced by both environmental factors and nutritional metabolism. The relationship between biochemical indicators and bone mineral density (BMD) is intricate and involves complex mechanisms. Path analysis, a statistical method that investigates causal relationships and the strength of associations among multiple factors, can be valuable in elucidating the connection between biochemical indicators and BMD. METHODS In this study, we employed advanced statistical techniques, specifically structural equation modeling (SEM) to investigate the intricate interrelationships among a myriad of factors that exert influence on BMD. This analytical approach facilitated not only the identification of the direct relationships between specific variables and BMD but also the exploration of the intricate of indirect pathway through which other variables contribute to the oval impact on BMD. By delving into the direct and indirect effects, we aimed to unravel the complex influences that collectively shape the state of bone health, providing a nuanced understanding of the multifaceted nature of the factors affecting BMD. RESULTS Our findings revealed that lipid levels had a significant indirect influence on BMD, which was mediated by body mass index (BMI). BMI exhibited both direct and indirect effects on BMD. Uric acid (UA) exerted a significant direct and indirect influence on BMD, with glomerular filtration rate (GFR) acting as the mediator. However, the total effect of UA on BMD was not significant due to the cancellation of positive effect UA on BMD but negative indirect effects of UA through GFR. For females, albumin had a significant direct effect on BMD, whereas this effect was not observed in males. The path analysis models generated results that demonstrated an acceptable fit for both female data (χ2 = 9.63, df = 7, p = 0.21, comparative fit index (CFI) = 0.98, root mean square error of approximation (RMSEA) = 0.05) and male data (χ2 = 6.26, df = 4, p = 0.18, CFI = 0.97, RMSEA = 0.06). CONCLUSIONS Nutritional metabolism plays a crucial role in maintaining BMD in elderly females and males.
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Affiliation(s)
- Qiaofeng Chen
- Department of Orthopaedics, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, China
| | - Jie Chen
- University of Massachusetts Boston, Boston, MA, USA
| | - Rongdong Zeng
- Department of Orthopaedics, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, China.
| | - Jianhui Shi
- Department of Orthopaedics, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, China.
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Chen HM, Hsu CY, Pan BL, Huang CF, Chen CT, Chuang HY, Lee CH. Association of Decreased Bone Density and Hyperlipidemia in a Taiwanese Older Adult Population. J Endocr Soc 2024; 8:bvae035. [PMID: 38505562 PMCID: PMC10949356 DOI: 10.1210/jendso/bvae035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Indexed: 03/21/2024] Open
Abstract
Objective This study aimed to determine if a combination of 2 abnormal lipid profiles revealed a stronger association with low bone mass than a single blood lipid abnormality alone. Methods This study enrolled 1373 participants who had received a dual-energy x-ray absorptiometry scan from January 2016 to December 2016 in a medical center in southern Taiwan. Logistic regression was used to examine association between lipid profiles and osteopenia or osteoporosis after adjusting for covariates. Results Compared to people with total cholesterol (TC) < 200 mg/dL, those with TC ≥ 240 mg/dL tended to have osteopenia or osteoporosis (OR 2.61; 95% CI, 1.44-4.71). Compared to people with low-density lipoprotein cholesterol (LDL-C) < 130 mg/dL, those with LDL-C ≥ 160 mg/dL tended to develop osteopenia or osteoporosis (OR 2.13; 95% CI, 1.21-3.74). The association of increased triglyceride and decreased bone mass was similar, although not statistically significant. Those with the combination of TG ≥ 200 mg/dL and TC ≥ 240 mg/dL had a stronger tendency to have osteopenia or osteoporosis (OR 3.51; 95% CI, 1.11-11.13) than people with only one blood lipid abnormality. Similarly, people with TG ≥ 200 mg/dL and LDL-C ≥ 160 mg/dL had a stronger tendency to have osteopenia or osteoporosis (OR 9.31; 95% CI, 1.15-75.42) than people with only one blood lipid abnormality, after adjustment for the same covariates. Conclusion Blood levels of TC, LDL-C, and TG were associated with osteopenia or osteoporosis. Results indicate that individuals aged older than 50 years with abnormal lipid profiles should be urged to participate in a bone density survey to exclude osteopenia or osteoporosis.
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Affiliation(s)
- Hui-Ming Chen
- Department of Family Medicine and Occupational Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, 833401, Taiwan
| | - Chung-Yuan Hsu
- Division of Rheumatology, Allergy, and Immunology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, 833401, Taiwan
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan, 333323, Taiwan
| | - Bo-Lin Pan
- Department of Family Medicine and Occupational Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, 833401, Taiwan
| | - Chih-Fang Huang
- Department of Family Medicine, Kaohsiung Municipal Feng-Shan Hospital, Kaohsiung, 830025, Taiwan
- Department of Long-Term Care and Management, Chung Hwa University of Medical Technology, Tainan, 717302, Taiwan
| | - Chao-Tung Chen
- Department of Family Medicine, Chang Gung Memorial Hospital, Chiayi, 613016, Taiwan
| | - Hung-Yi Chuang
- Department of Public Health, Kaohsiung Medical University, Kaohsiung, 807378, Taiwan
- Department of Environmental and Occupational Medicine, Kaohsiung Medical University Hospital, Kaohsiung, 807377, Taiwan
| | - Chih-Hung Lee
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan, 333323, Taiwan
- Department of Dermatology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, 833401, Taiwan
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Buck HV, Stains JP. Osteocyte-mediated mechanical response controls osteoblast differentiation and function. Front Physiol 2024; 15:1364694. [PMID: 38529481 PMCID: PMC10961341 DOI: 10.3389/fphys.2024.1364694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 02/29/2024] [Indexed: 03/27/2024] Open
Abstract
Low bone mass is a pervasive global health concern, with implications for osteoporosis, frailty, disability, and mortality. Lifestyle factors, including sedentary habits, metabolic dysfunction, and an aging population, contribute to the escalating prevalence of osteopenia and osteoporosis. The application of mechanical load to bone through physical activity and exercise prevents bone loss, while sufficient mechanical load stimulates new bone mass acquisition. Osteocytes, cells embedded within the bone, receive mechanical signals and translate these mechanical cues into biological signals, termed mechano-transduction. Mechano-transduction signals regulate other bone resident cells, such as osteoblasts and osteoclasts, to orchestrate changes in bone mass. This review explores the mechanisms through which osteocyte-mediated response to mechanical loading regulates osteoblast differentiation and bone formation. An overview of bone cell biology and the impact of mechanical load will be provided, with emphasis on the mechanical cues, mechano-transduction pathways, and factors that direct progenitor cells toward the osteoblast lineage. While there are a wide range of clinically available treatments for osteoporosis, the majority act through manipulation of the osteoclast and may have significant disadvantages. Despite the central role of osteoblasts to the deposition of new bone, few therapies directly target osteoblasts for the preservation of bone mass. Improved understanding of the mechanisms leading to osteoblastogenesis may reveal novel targets for translational investigation.
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Affiliation(s)
| | - Joseph Paul Stains
- School of Medicine, University of Maryland, Baltimore, MD, United States
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Han H, Li R, Fu D, Zhou H, Zhan Z, Wu Y, Meng B. Correlation between bone density, bone metabolism markers with lipid metabolism markers and body mass index. BMC Musculoskelet Disord 2024; 25:162. [PMID: 38378530 PMCID: PMC10877819 DOI: 10.1186/s12891-024-07284-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 02/14/2024] [Indexed: 02/22/2024] Open
Abstract
PURPOSE We aimed to explore the relationship between bone mineral density (BMD), bone metabolism markers, and blood lipid-related indicators, body mass index (BMI) in elderly individuals. METHODS A retrospective analysis was conducted on 710 patients. Patients' gender, age, height, weight, bone density values, T-scores, bone metabolism markers (including serum N-terminal propeptide of type I collagen (s-PINP), serum C-terminal telopeptide of type I collagen (s-CTX) and 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) and lipid-related indicators (including total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), triglycerides (TG) and Castelli index 1 (TC/HDL-C index) and Castelli index 2 (LDL-C/HDL-C index) were recorded. Correlations between variables were analyzed, and patients were grouped according to gender and T-score for intergroup comparisons. RESULTS HDL-C negatively correlates with BMD and s-CTX. TG, Castelli index, and BMI positively correlate with BMD. BMI negatively correlates with s-PINP. 1,25(OH)2D3 negatively correlates with TC, LDL-C, and Castelli index. LDL-C positively correlates with BMD in males, and TC negatively correlates with s-PINP. In females, HDL-C negatively correlates with BMD, and s-CTX positively correlates with Castelli index. 1,25(OH)2D3 negatively correlates with TC, LDL-C, and Castelli index. TG and Castelli index were higher in normal bone mass group, while HDL-C is higher in the osteoporosis group. TG and BMI positively predicted bone mass density, while HDL-C negatively predicted bone mass density. CONCLUSIONS HDL-C may have a predictive role in osteoporosis, particularly in women. The likelihood of osteoporosis is lower in individuals with high BMI or hyperlipidemia. Some lipid metabolism markers can be used to predict osteoporosis, and further research is needed.
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Affiliation(s)
- Hao Han
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Ran Li
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Dongming Fu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Hongyou Zhou
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Zihao Zhan
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yi'ang Wu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Bin Meng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China.
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Itagaki T, Ueki Y, Sunohara D, Aoki M, Nomoto F, Takamatsu T, Mochidome T, Miura T, Kasai T, Kuwahara K, Ikeda U. Impact of Low Bone Mineral Content Index on Cardiovascular Outcomes in Patients With Coronary Artery Disease Undergoing Percutaneous Coronary Intervention. Angiology 2024:33197231226348. [PMID: 38174990 DOI: 10.1177/00033197231226348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
The prognostic value of bone mineral content (BMC) for the clinical outcomes of patients with coronary artery disease (CAD) remains unknown. The present study evaluated the association between BMC index (BMCI) and cardiovascular events between January 2020 to June 2021, in consecutive patients (n = 257) with CAD undergoing percutaneous coronary intervention (PCI) at the Nagano Municipal Hospital. BMCI was measured using bioelectrical impedance analysis and calculated as the BMC divided by height squared. Patients were classified as low (<0.918) or high BMCI (≥0.918) groups according to the receiver operating characteristics curve analysis for the primary endpoint, major adverse cardiovascular events (MACE), including cardiovascular death, spontaneous myocardial infarction, stroke, and any revascularization. During a median follow-up of 744 days, the low BMCI group (n = 152) had an increased risk of MACE compared with the high group (n = 105) (19.7 vs 6.7%, P = .004). A low BMCI was significantly associated with MACE in the multivariable Cox and the Inverse Probability of Treatment Weighting analyses (hazard ratio: 3.16, 95% confidence interval: 1.15-8.67, P = .025). In conclusion, among patients with CAD undergoing PCI, BMCI was a predictor for cardiovascular events. Further research is required to determine whether medical interventions for BMC can improve patient prognosis.
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Affiliation(s)
| | - Yasushi Ueki
- Department of Cardiovascular Medicine, School of Medicine, Shinshu University, Japan
| | - Daisuke Sunohara
- Department of Cardiovascular Medicine, School of Medicine, Shinshu University, Japan
| | - Moeko Aoki
- Department of Cardiology, Nagano Municipal Hospital, Japan
| | - Fumika Nomoto
- Department of Cardiology, Nagano Municipal Hospital, Japan
| | | | | | - Takashi Miura
- Department of Cardiology, Nagano Municipal Hospital, Japan
- Department of Internal Medicine and Cardiology, Miura Heart Clinic, Japan
| | - Toshio Kasai
- Department of Cardiology, Nagano Municipal Hospital, Japan
| | - Koichiro Kuwahara
- Department of Cardiovascular Medicine, School of Medicine, Shinshu University, Japan
| | - Uichi Ikeda
- Department of Cardiology, Nagano Municipal Hospital, Japan
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Yavuz MC, Guler R, Ozcan EC, Bozoglan A, Kirtay M, Kaya CA, Dundar S. The Investigation of Bone-Implant Connection and New Bone Formation in Fasting and High-Fatty Diet Rats. Niger J Clin Pract 2024; 27:95-101. [PMID: 38317041 DOI: 10.4103/njcp.njcp_530_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 12/18/2023] [Indexed: 02/07/2024]
Abstract
BACKGROUND Hyperlipidemia caused by a high-fat diet (HFD) has many adverse effects on the cardiovascular system, including vascular problems. In addition, a HFD also has significant adverse effects on bone health. AIM The aim of this study is to examine bone-implant osteointegration and new bone formation in peri-implant defects in fasting and high-fatty diet applied rats. MATERIALS AND METHODS In this study, 28 female Sprague Dawley rats were used. The rats were divided into four groups, with seven rats in each group: the control group on a normal diet (Group 1) (n = 7), the fasted group (Group 2) (n = 7), the high-fatty diet (HFD) group (Group 3) (n = 7), and the fasted and HFD group (Group 4) (n = 7). Titanium implants with a diameter of 2.5 mm and a length of 4 mm were placed in the right tibia bones of the subjects, and a bone graft corresponding to 2 mm of the implant length was placed in the bone defect applied to the neck region. All rats that continued the administered diet for 12 weeks were sacrificed at the end of the experiment period. The implants and surrounding bone tissue were surgically removed and subjected to biomechanical analysis to assess bone-implant osteointegration and peri-implant new bone formation. RESULTS It was determined that there was no statistically significant difference between the rats in the control group and the other three groups in terms of bone-implant osteointegration and peri-implant new bone formation (P > 0.05). CONCLUSION As a result of this study, it was determined that fasting or maintaining a HFD does not adversely affect bone-implant osteointegration or peri-implant new bone formation in the tibias of rats.
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Affiliation(s)
- M C Yavuz
- Department of Periodontology, Faculty of Dentistry, Medeniyet University, Istanbul, Turkey
| | - R Guler
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Dicle University, Diyarbakir, Turkey
| | - E C Ozcan
- Department of Esthetic, Plastic and Reconstructive Surgery, Faculty of Medicine, Firat University, Elazig, Turkey
| | - A Bozoglan
- Department of Periodontology, Faculty of Dentistry, Firat University, Elazig, Turkey
| | - M Kirtay
- Private Practice, Oral and Maxillofacial Surgery, London, Ontario, Canada
| | - C A Kaya
- Department of Vegetable and Animal Production/Milk and Fattening, Faculty of Diyarbakir Agricultural Vocational School, Dicle University, Diyarbakir, Turkey
| | - S Dundar
- Department of Periodontology, Faculty of Dentistry, Firat University, Elazig, Turkey
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Ledesma-Colunga MG, Passin V, Lademann F, Hofbauer LC, Rauner M. Novel Insights into Osteoclast Energy Metabolism. Curr Osteoporos Rep 2023; 21:660-669. [PMID: 37816910 PMCID: PMC10724336 DOI: 10.1007/s11914-023-00825-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/14/2023] [Indexed: 10/12/2023]
Abstract
PURPOSE OF REVIEW Osteoclasts are crucial for the dynamic remodeling of bone as they resorb old and damaged bone, making space for new bone. Metabolic reprogramming in these cells not only supports phenotypic changes, but also provides the necessary energy for their highly energy-consuming activity, bone resorption. In this review, we highlight recent developments in our understanding of the metabolic adaptations that influence osteoclast behavior and the overall remodeling of bone tissue. RECENT FINDINGS Osteoclasts undergo metabolic reprogramming to meet the energy demands during their transition from precursor cells to fully mature bone-resorbing osteoclasts. Recent research has made considerable progress in pinpointing crucial metabolic adaptations and checkpoint proteins in this process. Notably, glucose metabolism, mitochondrial biogenesis, and oxidative respiration were identified as essential pathways involved in osteoclast differentiation, cytoskeletal organization, and resorptive activity. Furthermore, the interaction between these pathways and amino acid and lipid metabolism adds to the complexity of the process. These interconnected processes can function as diverse fuel sources or have independent regulatory effects, significantly influencing osteoclast function. Energy metabolism in osteoclasts involves various substrates and pathways to meet the energetic requirements of osteoclasts throughout their maturation stages. This understanding of osteoclast biology may provide valuable insights for modulating osteoclast activity during the pathogenesis of bone-related disorders and may pave the way for the development of innovative therapeutic strategies.
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Affiliation(s)
- Maria G Ledesma-Colunga
- Department of Medicine III and Center for Healthy Aging, Technische Universität Dresden, 01307, Dresden, Germany
| | - Vanessa Passin
- Department of Medicine III and Center for Healthy Aging, Technische Universität Dresden, 01307, Dresden, Germany
| | - Franziska Lademann
- Department of Medicine III and Center for Healthy Aging, Technische Universität Dresden, 01307, Dresden, Germany
| | - Lorenz C Hofbauer
- Department of Medicine III and Center for Healthy Aging, Technische Universität Dresden, 01307, Dresden, Germany
| | - Martina Rauner
- Department of Medicine III and Center for Healthy Aging, Technische Universität Dresden, 01307, Dresden, Germany.
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10
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Liu W, Yang J, Li S, Ye X, Yang P, Zhang J. Hyperlipidemia impairs bone regeneration of closed bone defects and tooth extraction wounds in mice. J Periodontal Res 2023; 58:1201-1211. [PMID: 37587560 DOI: 10.1111/jre.13176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 07/08/2023] [Accepted: 08/04/2023] [Indexed: 08/18/2023]
Abstract
OBJECTIVES To evaluate the effect of hyperlipidemia on the healing of bone defects. MATERIALS AND METHODS Apolipoprotein E (ApoE)-deficient mice and wild-type (WT) C57BL/6J mice were fed with an atherogenic high-fat diet (HFD) or a standard chow diet (as control) for 6 weeks. Blood samples were collected to evaluate serum lipid levels. Closed bone defects and open tooth extraction wounds were then created in the mandibles of these animals. One or two weeks after surgery, animals were euthanized. Micro-CT analysis and histomorphometric analysis were conducted to evaluate the healing of bone defects and the alveolar ridge resorption. RESULTS Bone regeneration of closed bone defects was considerably delayed in the hyperlipidemic Apoe-/- mice and WT mice. No obvious difference was detected in the new bone formation of the tooth extraction wounds. The HFD-fed mice showed more prominent reduction in the lingual alveolar ridge height of the tooth extraction wounds when compared with the control group. CONCLUSIONS Hyperlipidemia results in delayed bone regeneration in large closed bone defects. Although tooth extraction wounds are small and normally regenerated in a hyperlipidemic microenvironment, the prominent reduction in the alveolar ridge height is also a challenge for future restoration of the dentition.
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Affiliation(s)
- Wenchuan Liu
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, China
| | - Jing Yang
- Department of Dentistry, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan, China
| | - Shanshan Li
- Dental Department, Huaihe Hospital of Henan University, Kaifeng, China
| | - Xin Ye
- Department of Endodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, China
| | - Pishan Yang
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, China
| | - Jin Zhang
- Department of Endodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, China
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11
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Sun Y, Qi X, Lin X, Zhou Y, Lv X, Zhou J, Li Z, Wu X, Zou Z, Li Y, Li H. Association between total cholesterol and lumbar bone density in Chinese: a study of physical examination data from 2018 to 2023. Lipids Health Dis 2023; 22:180. [PMID: 37865752 PMCID: PMC10590520 DOI: 10.1186/s12944-023-01946-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 10/15/2023] [Indexed: 10/23/2023] Open
Abstract
BACKGROUND The impact of total cholesterol (TC) on lumbar bone mineral density (BMD) is a topic of interest. However, empirical evidence on this association from demographic surveys conducted in China is lacking. Therefore, this study aimed to examine the relationship between serum TC and lumbar BMD in a sample of 20,544 Chinese adults between the ages of 20 and 80 years over a period of 5 years, from February 2018 to February 2023. Thus, we investigated the effect of serum TC level on lumbar BMD and its relationship with bone reduction in a Chinese adult population. METHODS This cross-sectional study used data obtained from the Department of Health Management at Henan Provincial People's Hospital between February 2018 and February 2023. The aim of this study was to examine the correlation between serum TC and lumbar BMD in individuals of different sexes. The research methodology encompassed population description, analysis of stratification, single-factor and multiple-equation regression analyses, smooth curve fitting, and analysis of threshold and saturation effects. The R and EmpowerStats software packages were used for statistical analysis. RESULTS After adjusting for confounding variables, a multiple linear regression model revealed a significant correlation between TC and lumbar BMD in men. In subgroup analysis, serum TC was found to have a positive association with lumbar BMD in men, specifically those aged 45 years or older, with a body mass index (BMI) ranging from 24 to 28 kg/m2. A U-shaped correlation arose between serum TC and lumbar BMD was detected in women of different ages and BMI, the inflection point was 4.27 mmol/L for women aged ≥ 45 years and 4.35 mmol/L for women with a BMI of ≥ 28 kg/m2. CONCLUSION In this study, Chinese adults aged 20-80 years displayed different effects of serum TC on lumbar BMD in sex-specific populations. Therefore, monitoring BMI and serum TC levels in women of different ages could prevent osteoporosis and osteopenia. TRIAL REGISTRATION The research protocol was approved by the Ethics Committee of Beijing Jishuitan Hospital, in accordance with the Declaration of Helsinki guidelines (No. 2015-12-02). These data are part of the China Health Quantitative CT Big Data Research team, which has been registered at clinicaltrials.gov (code: NCT03699228).
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Affiliation(s)
- Yongbing Sun
- Department of Medical Imaging, People's Hospital of Zhengzhou University, #7 Wei Wu Road, Zhengzhou, 450003, Henan, People's Republic of China
| | - Xin Qi
- Department of Medical Imaging, Henan Provincial People's Hospital, Xinxiang Medical College, Zhengzhou, Henan, China
| | - Xinbei Lin
- Department of Medical Imaging, People's Hospital of Zhengzhou University, #7 Wei Wu Road, Zhengzhou, 450003, Henan, People's Republic of China
| | - Yang Zhou
- Department of Medical Imaging, People's Hospital of Zhengzhou University, #7 Wei Wu Road, Zhengzhou, 450003, Henan, People's Republic of China
| | - Xue Lv
- Department of Health Management, Chronic Health Management Laboratory, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Jing Zhou
- Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Zhonglin Li
- Department of Medical Imaging, People's Hospital of Zhengzhou University, #7 Wei Wu Road, Zhengzhou, 450003, Henan, People's Republic of China
| | - Xiaoling Wu
- Department of Nuclear Medicine, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Zhi Zou
- Department of Medical Imaging, People's Hospital of Zhengzhou University, #7 Wei Wu Road, Zhengzhou, 450003, Henan, People's Republic of China
| | - Yongli Li
- Department of Health Management, Chronic Health Management Laboratory, Henan Provincial People's Hospital, Zhengzhou, Henan, China.
| | - Hao Li
- Department of Health Management, Fuwai Central China Cardiovascular Hospital, #1 Fuwai Avenue, Zhengzhou, Henan, China.
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12
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Akhmetshina A, Kratky D, Rendina-Ruedy E. Influence of Cholesterol on the Regulation of Osteoblast Function. Metabolites 2023; 13:metabo13040578. [PMID: 37110236 PMCID: PMC10143138 DOI: 10.3390/metabo13040578] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/11/2023] [Accepted: 04/19/2023] [Indexed: 04/29/2023] Open
Abstract
Bone is a dynamic tissue composed of cells, an extracellular matrix, and mineralized portion. Osteoblasts are responsible for proper bone formation and remodeling, and function. These processes are endergonic and require cellular energy in the form of adenosine triphosphate (ATP), which is derived from various sources such as glucose, fatty acids, and amino acids. However, other lipids such as cholesterol have also been found to play a critical role in bone homeostasis and can also contribute to the overall bioenergetic capacity of osteoblasts. In addition, several epidemiological studies have found a link between elevated cholesterol, cardiovascular disease, an enhanced risk of osteoporosis, and increased bone metastasis in cancer patients. This review focuses on how cholesterol, its derivatives, and cholesterol-lowering medications (statins) regulate osteoblast function and bone formation. It also highlights the molecular mechanisms underlying the cholesterol-osteoblast crosstalk.
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Affiliation(s)
- Alena Akhmetshina
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Dagmar Kratky
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria
- BioTechMed-Graz, 8010 Graz, Austria
| | - Elizabeth Rendina-Ruedy
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN 37235, USA
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13
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Jung SY, Cho EB, Han KD, Jung JH, Yeo Y, Kong SH, Shin DW, Min JH. Risk of fracture in neuromyelitis optica spectrum disorder and multiple sclerosis: a nationwide cohort study in South Korea. Osteoporos Int 2023; 34:925-933. [PMID: 36854747 DOI: 10.1007/s00198-023-06715-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 02/21/2023] [Indexed: 03/02/2023]
Abstract
PURPOSE Interest in fractures in patients with multiple sclerosis (MS) and neuromyelitis optica spectrum disorder (NMOSD) has considerably increased in the last decade. However, few studies have compared the incidence of fractures between patients with MS and NMOSD using a nationwide database. This study aimed to evaluate the differences in the risk of fracture between patients with NMOSD and MS compared to that in healthy controls using cohort data from a Korean nationwide database. METHODS In this retrospective cohort study, data from the National Health Insurance Service (NHIS) database from January 2010 to December 2017 were analyzed. A total of 1,217/1,329 patients with MS/NMOSD free of fractures at the index date were included. Matched controls were selected based on age, sex, and the presence of hypertension, diabetes mellitus, and dyslipidemia. The mean follow-up durations after the index date were 4.40/4.08 years for patients with MS/NMOSD and 4.73/4.28 for their matched controls. RESULTS The adjusted hazard ratios (aHRs) with 95% confidence intervals of any, hip, and vertebral fractures were 1.81 (1.43-2.28), 3.36 (1.81-6.24), and 2.01 (1.42-2.99) times higher for patients with MS than for controls, respectively, and they were 1.85 (1.47-2.34), 3.82 (2.05-7.11), and 2.84 (1.92-4.21) times higher for patients with NMOSD than for controls, respectively. No significant differences were observed in the incidence of fractures between the MS and NMOSD groups. Patients with MS/NMOSD had a 1.8-fold higher risk of fracture than matched controls, and the risk of hip fracture was especially high (3- to 4-fold higher). CONCLUSIONS Clinicians need to regularly assess patients with MS/NMOSD for the risk of fractures and take preventative measures to reduce it.
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Affiliation(s)
- Se Young Jung
- Department of Family Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
- Department of Digital Healthcare, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Eun Bin Cho
- Department of Neurology, College of Medicine, Gyeongsang Institute of Health Science, Gyeongsang National University, Jinju, South Korea
| | - Kyung-Do Han
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Korea
| | - Jin Hyung Jung
- Department of Biostatics, The Catholic University of Korea, Seoul, South Korea
| | - Yohwan Yeo
- Department of Family Medicine & Supportive Care Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Sung Hye Kong
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Dong Wook Shin
- Department of Family Medicine & Supportive Care Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.
- Department of Clinical Research Design and Evaluation/Department of Digital Health, Samsung Advanced Institute of Health Science and Technology (SAIHST), Sungkyunkwan University, 50 Irwon-Dong, Gangnam-Gu, Seoul, 135-710, South Korea.
- Center for Wireless and Population Health Systems, University of California, San Diego, La Jolla, CA, USA.
| | - Ju-Hong Min
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Irwon-Dong, Gangnam-Gu, Seoul, 135-710, South Korea.
- Neuroscience Center, Samsung Medical Center, Seoul, South Korea.
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Sungkyunkwan University, Seoul, South Korea.
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14
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Hu S, Wang S, Zhang W, Su L, Ye J, Zhang D, Zhang Y, Guo Q, Yu D, Peng J, Xu J, Wei Y. Associations between serum total cholesterol level and bone mineral density in older adults. Aging (Albany NY) 2023; 15:1330-1342. [PMID: 36863710 PMCID: PMC10042689 DOI: 10.18632/aging.204514] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 01/23/2023] [Indexed: 03/04/2023]
Abstract
BACKGROUND Osteoporosis is a major clinical problem in elderly men and women. The correlation between total cholesterol and bone mineral density remains controversial. NHANES is the cornerstone for national nutrition monitoring to inform nutrition and health policy. METHODS Sample sizes and the location of the study and the time when it was conducted: we obtained 4236 non-cancer elderly from NHANES (National Health and Nutrition Examination Survey) database from 1999 to 2006. Data were analyzed with the use of the statistical packages R and EmpowerStats. We analyzed the relationship between total cholesterol and lumbar bone mineral density. We performed research population description, stratified analysis, single factor analysis, multiple equation regression analysis, smooth curve fitting, and threshold effect and saturation effect analysis. RESULTS A significant negative association between serum cholesterol levels and bone mineral density of the lumbar spine in US non cancer affected older adults aged 60 years or older. Older adults ≥ 70 years of age had an inflection point at 280 mg / dl, and those with moderate physical activity had an inflection point at 199 mg / dl, The smooth curves they fitted were all U-shaped. CONCLUSIONS There is a negative association between total cholesterol and lumbar spine bone mineral density in non-cancer elderly greater than or equal to 60 years of age.
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Affiliation(s)
- Sheng Hu
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Silin Wang
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Wenxiong Zhang
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Lang Su
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jiayue Ye
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Deyuan Zhang
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yang Zhang
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Qiang Guo
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Dongliang Yu
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jinhua Peng
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jianjun Xu
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yiping Wei
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
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15
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Kim J, Ha J, Jeong C, Lee J, Lim Y, Jo K, Kim MK, Kwon HS, Song KH, Baek KH. Bone mineral density and lipid profiles in older adults: a nationwide cross-sectional study. Osteoporos Int 2023; 34:119-128. [PMID: 36255473 DOI: 10.1007/s00198-022-06571-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 10/04/2022] [Indexed: 01/07/2023]
Abstract
UNLABELLED It has been hypothesized that lipid profiles are associated with bone mineral density (BMD), but previous results have been controversial. In this study, serum triglycerides showed a significant inverse association with BMD, and the relationship is thought to correlate with vitamin D status among older adults. INTRODUCTION The purpose of this study was to investigate the relationship between lipid profiles and bone mineral density (BMD) in older adults using data from the Korean National Health and Nutrition Examination Survey (KNHANES). METHODS We enrolled men older than 50 years and postmenopausal women who participated in the KNHANES 2008-2011. Subjects with liver cirrhosis, thyroid disease, or renal dysfunction and those receiving treatment for hyperlipidemia or osteoporosis were excluded. RESULTS A total of 4323 subjects (2286 men and 2037 women) was analyzed. The prevalence of osteoporosis was 8.7% in men older than 50 years and 38.4% in postmenopausal women. Osteopenia and osteoporosis groups were generally older and tended to have a lower body mass index compared to the normal group (p for trend < 0.001). The correlation between each lipid profile and BMD was analyzed in the linear model adjusted for age and body mass index. Total cholesterol and high-density lipoprotein cholesterol showed a negative correlation with BMD in the total population, but there was no significant correlation when analyzed separately for men and women. Triglycerides had a negative association with whole-body BMD in both men and women (p < 0.05). The adjusted odds ratio of logarithmic triglyceride level for osteoporosis was 2.50 (95% confidence interval 1.13-5.51) in women older than 65 years. CONCLUSION Serum triglycerides showed a significant inverse association with BMD, and the relationship is thought to correlate with vitamin D status among older adults.
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Affiliation(s)
- Jinyoung Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yeouido St. Mary᾽s Hospital, College of Medicine, The Catholic University of Korea, 63-ro, Yeongdeungpo-gu, Seoul, South Korea
| | - Jeonghoon Ha
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary᾽s Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Chaiho Jeong
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Uijeongbu St. Mary᾽s Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Gyeonggi-do, South Korea
| | - Jeongmin Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Eunpyeong St. Mary᾽s Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Yejee Lim
- Division of General Internal Medicine, Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Gyeonggi-do, South Korea
| | - Kwanhoon Jo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Incheon St. Mary᾽s Hospital, College of Medicine, The Catholic University of Korea, Incheon, South Korea
| | - Mee Kyoung Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yeouido St. Mary᾽s Hospital, College of Medicine, The Catholic University of Korea, 63-ro, Yeongdeungpo-gu, Seoul, South Korea
| | - Hyuk-Sang Kwon
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yeouido St. Mary᾽s Hospital, College of Medicine, The Catholic University of Korea, 63-ro, Yeongdeungpo-gu, Seoul, South Korea
| | - Ki-Ho Song
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yeouido St. Mary᾽s Hospital, College of Medicine, The Catholic University of Korea, 63-ro, Yeongdeungpo-gu, Seoul, South Korea
| | - Ki-Hyun Baek
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yeouido St. Mary᾽s Hospital, College of Medicine, The Catholic University of Korea, 63-ro, Yeongdeungpo-gu, Seoul, South Korea.
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16
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Chen JR, Caviness PC, Zhao H, Belcher B, Wankhade UD, Shankar K, Blackburn ML, Lazarenko OP. Maternal high-fat diet modifies epigenetic marks H3K27me3 and H3K27ac in bone to regulate offspring osteoblastogenesis in mice. Epigenetics 2022; 17:2209-2222. [PMID: 35950595 PMCID: PMC9665156 DOI: 10.1080/15592294.2022.2111759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 08/05/2022] [Indexed: 11/03/2022] Open
Abstract
Studies from both humans and animal models indicated that maternal chronic poor-quality diet, especially a high fat diet (HFD), is significantly associated with reduced bone density and childhood fractures in offspring. When previously studied in a rat model, our data suggested that maternal HFD changes epigenetic marks such as DNA methylation and histone modifications to control osteoblast metabolism. In mouse embryonic and postnatal offspring bone samples, a ChIP-sequencing (ChIP-Seq)-based genome-wide method was used to locate the repressive histone mark H3K27me3 (mediated via the polycomb histone methyltransferase, Ezh2) and expressive histone mark H3K27ac (p300/CBP mediated) throughout the genome. Using isolated mouse embryonic cells from foetal calvaria (osteoblast-like cells), H3K27me3 ChIP-Seq showed that 147 gene bodies and 26 gene promoters in HFD embryotic samples had a greater than twofold increase in H3K27me peaks compared to controls. Among the HFD samples, Pthlh and Col2a1 that are important genes playing roles during chondro- and osteogenesis had significantly enriched levels of H3K27me3. Their decreased mRNA expression was confirmed by real-time PCR and standard ChIP analysis, indicating a strong association with Ezh2 mediated H3K27me3 epigenetic changes. Using embryonic calvaria osteoblastic cells and offspring bone samples, H3K27ac ChIP-Seq analysis showed that osteoblast inhibitor genes Tnfaip3 and Twist1 had significantly enriched peaks of H3K27ac in HFD samples compared to controls. Their increased gene expression and association with H3K27ac were also confirmed by real-time PCR and standard ChIP analysis. These findings indicate that chronic maternal HFD changes histone trimethylation and acetylation epigenetic marks to regulate expression of genes controlling osteoblastogenesis.
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Affiliation(s)
- Jin-Ran Chen
- Arkansas Children’s Nutrition CenterLittle Rock, AR 72202, USA
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Perry C. Caviness
- Arkansas Children’s Nutrition CenterLittle Rock, AR 72202, USA
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Haijun Zhao
- Arkansas Children’s Nutrition CenterLittle Rock, AR 72202, USA
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Beau Belcher
- Arkansas Children’s Nutrition CenterLittle Rock, AR 72202, USA
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Umesh D. Wankhade
- Arkansas Children’s Nutrition CenterLittle Rock, AR 72202, USA
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Kartik Shankar
- Department of Pediatrics, Section of Nutrition, University of Colorado School of Medicine, Aurora, CO, USA
| | - Michael L Blackburn
- Arkansas Children’s Nutrition CenterLittle Rock, AR 72202, USA
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Oxana P. Lazarenko
- Arkansas Children’s Nutrition CenterLittle Rock, AR 72202, USA
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
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17
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Li G, Park JN, Park HJ, Suh JH, Choi HS. High Cholesterol-Induced Bone Loss Is Attenuated by Arctiin via an Action in Osteoclasts. Nutrients 2022; 14:4483. [PMID: 36364745 PMCID: PMC9657919 DOI: 10.3390/nu14214483] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/21/2022] [Accepted: 10/21/2022] [Indexed: 10/29/2023] Open
Abstract
High cholesterol-induced bone loss is highly associated with oxidative stress, which leads to the generation of oxysterols, such as 7-ketocholesterol (7-KC). Here, we conducted in vivo and in vitro experiments to determine whether arctiin prevents high cholesterol diet-induced bone loss by decreasing oxidative stress. First, arctiin was orally administered to atherogenic diet (AD)-fed C57BL/6J male mice at a dose of 10 mg/kg for 6 weeks. Micro-computerized tomography (μCT) analysis showed that arctiin attenuated AD-induced boss loss. For our in vitro experiments, the anti-oxidant effects of arctiin were evaluated in 7-KC-stimulated osteoclasts (OCs). Arctiin decreased the number and activity of OCs and inhibited autophagy by disrupting the nuclear localization of transcription factor EB (TFEB) and downregulating the oxidized TFEB signaling pathway in OCs upon 7-KC stimulation. Furthermore, arctiin decreased the levels of reactive oxygen species (ROS) by enhancing the expression of nuclear factor erythroid 2-related factor 2 (Nrf2), catalase, and heme oxygenase 1 (HO-1), all of which affected OC differentiation. Conversely, silencing of Nrf2 or HO-1/catalase attenuated the effects of arctiin on OCs. Collectively, our findings suggested that arctiin attenuates 7-KC-induced osteoclastogenesis by increasing the expression of ROS scavenging genes in the Nrf2/HO-1/catalase signaling pathway, thereby decreasing OC autophagy. Moreover, arctiin inhibits the oxidation and nuclear localization of TFEB, thus protecting mice from AD-induced bone loss. Our findings thus demonstrate the therapeutic potential of arctiin for the prevention of cholesterol-induced bone loss.
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Affiliation(s)
- Guoen Li
- Department of Biological Sciences (BK21 Program), University of Ulsan, Ulsan 44610, Korea
| | - Jung-Nam Park
- Department of Biological Sciences (BK21 Program), University of Ulsan, Ulsan 44610, Korea
| | - Hyun-Jung Park
- Department of Biological Sciences (BK21 Program), University of Ulsan, Ulsan 44610, Korea
| | - Jae-Hee Suh
- Department of Pathology, Ulsan University Hospital, Ulsan 44030, Korea
| | - Hye-Seon Choi
- Department of Biological Sciences (BK21 Program), University of Ulsan, Ulsan 44610, Korea
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18
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Zhang Z, Zhang Z, Pei L, Zhang X, Li B, Meng Y, Zhou X. How high-fat diet affects bone in mice: A systematic review and meta-analysis. Obes Rev 2022; 23:e13493. [PMID: 35822276 DOI: 10.1111/obr.13493] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 06/18/2022] [Accepted: 06/19/2022] [Indexed: 11/29/2022]
Abstract
High-fat diet (HFD) feeding for mice is commonly used to model obesity. However, conflicting results have been reported on the relationship between HFD and bone mass. In this systematic review and meta-analysis, we synthesized data from 80 articles to determine the alterations in cortical and trabecular bone mass of femur, tibia, and vertebrae in C57BL/6 mice after HFD. Overall, we detected decreased trabecular bone mass as well as deteriorated architecture, in femur and tibia of HFD treated mice. The vertebral trabecula was also impaired, possibly due to its reshaping into a more fragmentized pattern. In addition, pooled cortical thickness declined in femur, tibia, and vertebrae. Combined with changes in other cortical parameters, HFD could lead to a larger femoral bone marrow cavity, and a thinner and more fragile cortex. Moreover, we conducted subgroup analyses to explore the influence of mice's sex and age as well as HFD's ingredients and intervention period. Based on our data, male mice or mice aged 6-12 weeks old are relatively susceptible to HFD. HFD with > 50% of energy from fats and intervention time of 10 weeks to 5 months are more likely to induce skeletal alterations. Altogether, these findings supported HFD as an appropriate model for obesity-associated bone loss and can guide future studies.
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Affiliation(s)
- Zheng Zhang
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University (Naval Medical University), Shanghai, People's Republic of China
| | - Zhanrong Zhang
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University (Naval Medical University), Shanghai, People's Republic of China
| | - Lei Pei
- Department of Emergency, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Xiaozhou Zhang
- College of Letters & Science, University of California Berkeley, Berkeley, California, USA
| | - Boyuan Li
- Fountain Valley School of Colorado, Colorado Springs, Colorado, USA
| | - Yichen Meng
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University (Naval Medical University), Shanghai, People's Republic of China
| | - Xuhui Zhou
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University (Naval Medical University), Shanghai, People's Republic of China
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19
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Guo J, Huang Q, Zhou Y, Xu Y, Zong C, Shen P, Ma Y, Zhang J, Cui Y, Yu L, Gao J, Liu G, Huang K, Xu W. Typing characteristics of metabolism-related genes in osteoporosis. Front Pharmacol 2022; 13:999157. [PMID: 36188607 PMCID: PMC9522470 DOI: 10.3389/fphar.2022.999157] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 08/15/2022] [Indexed: 11/13/2022] Open
Abstract
Objective: Osteoporosis is a common musculoskeletal disease. Fractures caused by osteoporosis place a huge burden on global healthcare. At present, the mechanism of metabolic-related etiological heterogeneity of osteoporosis has not been explored, and no research has been conducted to analyze the metabolic-related phenotype of osteoporosis. This study aimed to identify different types of osteoporosis metabolic correlates associated with underlying pathogenesis by machine learning.Methods: In this study, the gene expression profiles GSE56814 and GSE56815 of osteoporosis patients were downloaded from the GEO database, and unsupervised clustering analysis was used to identify osteoporosis metabolic gene subtypes and machine learning to screen osteoporosis metabolism-related characteristic genes. Meanwhile, multi-omics enrichment was performed using the online Proteomaps tool, and the results were validated using external datasets GSE35959 and GSE7429. Finally, the immune and stromal cell types of the signature genes were inferred by the xCell method.Results: Based on unsupervised cluster analysis, osteoporosis metabolic genotyping can be divided into three distinct subtypes: lipid and steroid metabolism subtypes, glycolysis-related subtypes, and polysaccharide subtypes. In addition, machine learning SVM identified 10 potentially metabolically related genes, GPR31, GATM, DDB2, ARMCX1, RPS6, BTBD3, ADAMTSL4, COQ6, B3GNT2, and CD9.Conclusion: Based on the clustering analysis of gene expression in patients with osteoporosis and machine learning, we identified different metabolism-related subtypes and characteristic genes of osteoporosis, which will help to provide new ideas for the metabolism-related pathogenesis of osteoporosis and provide a new direction for follow-up research.
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Affiliation(s)
- Jiandong Guo
- Hangzhou Ninth People’s Hospital, Hangzhou, China
| | - Qinghua Huang
- Zhejiang Provincial People’s Hospital, Hangzhou, China
| | - Yundong Zhou
- Shanghai Medical Innovation Fusion Biomedical Research Center, Shanghai, China
| | - Yining Xu
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Chenyu Zong
- Affiliated Hospital of Nantong University, Nantong, China
| | - Panyang Shen
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yan Ma
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jinxi Zhang
- Hangzhou Ninth People’s Hospital, Hangzhou, China
| | - Yongfeng Cui
- Hangzhou Ninth People’s Hospital, Hangzhou, China
| | - Liuqian Yu
- Hangzhou Ninth People’s Hospital, Hangzhou, China
| | - Jiawei Gao
- Hangzhou Ninth People’s Hospital, Hangzhou, China
| | - Gang Liu
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- *Correspondence: Gang Liu, ; Kangmao Huang, ; Wenbin Xu,
| | - Kangmao Huang
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- *Correspondence: Gang Liu, ; Kangmao Huang, ; Wenbin Xu,
| | - Wenbin Xu
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- *Correspondence: Gang Liu, ; Kangmao Huang, ; Wenbin Xu,
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20
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Wang Y, Chen-Mayfield TJ, Li Z, Younis MH, Cai W, Hu Q. Harnessing DNA for immunotherapy: Cancer, infectious diseases, and beyond. ADVANCED FUNCTIONAL MATERIALS 2022; 32:2112273. [PMID: 36304724 PMCID: PMC9595111 DOI: 10.1002/adfm.202112273] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Indexed: 05/03/2023]
Abstract
Despite the rapid development of immunotherapy, low response rates, poor therapeutic outcomes and severe side effects still limit their implementation, making the augmentation of immunotherapy an important goal for current research. DNA, which has principally been recognized for its functions of encoding genetic information, has recently attracted research interest due to its emerging role in immune modulation. Inspired by the intrinsic DNA-sensing signaling that triggers the host defense in response to foreign DNA, DNA or nucleic acid-based immune stimulators have been used in the prevention and treatment of various diseases. Besides that, DNA vaccines allow the synthesis of target proteins in host cells, subsequently inducing recognition of these antigens to provoke immune responses. On this basis, researchers have designed numerous vehicles for DNA and nucleic acid delivery to regulate immune systems. Additionally, DNA nanostructures have also been implemented as vaccine delivery systems to elicit strong immune responses against pathogens and diseased cells. This review will introduce the mechanism of harnessing DNA-mediated immunity for the prevention and treatment of diseases, summarize recent progress, and envisage their future applications and challenges.
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Affiliation(s)
- Yixin Wang
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin 53705
- Carbone Cancer Center, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin 53705
| | - Ting-Jing Chen-Mayfield
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin 53705
- Carbone Cancer Center, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin 53705
| | - Zhaoting Li
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin 53705
- Carbone Cancer Center, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin 53705
| | - Muhsin H. Younis
- Department of Radiology and Department of Medical Physics, University of Wisconsin-Madison, Madison, Wisconsin 53705
| | - Weibo Cai
- Carbone Cancer Center, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin 53705
- Department of Radiology and Department of Medical Physics, University of Wisconsin-Madison, Madison, Wisconsin 53705
| | - Quanyin Hu
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin 53705
- Carbone Cancer Center, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin 53705
- Wisconsin Center for NanoBioSystems, University of Wisconsin-Madison, Madison, Wisconsin 53705, USA
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21
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Duan Y, Gong K, Xu S, Zhang F, Meng X, Han J. Regulation of cholesterol homeostasis in health and diseases: from mechanisms to targeted therapeutics. Signal Transduct Target Ther 2022; 7:265. [PMID: 35918332 PMCID: PMC9344793 DOI: 10.1038/s41392-022-01125-5] [Citation(s) in RCA: 66] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 07/04/2022] [Accepted: 07/12/2022] [Indexed: 12/13/2022] Open
Abstract
Disturbed cholesterol homeostasis plays critical roles in the development of multiple diseases, such as cardiovascular diseases (CVD), neurodegenerative diseases and cancers, particularly the CVD in which the accumulation of lipids (mainly the cholesteryl esters) within macrophage/foam cells underneath the endothelial layer drives the formation of atherosclerotic lesions eventually. More and more studies have shown that lowering cholesterol level, especially low-density lipoprotein cholesterol level, protects cardiovascular system and prevents cardiovascular events effectively. Maintaining cholesterol homeostasis is determined by cholesterol biosynthesis, uptake, efflux, transport, storage, utilization, and/or excretion. All the processes should be precisely controlled by the multiple regulatory pathways. Based on the regulation of cholesterol homeostasis, many interventions have been developed to lower cholesterol by inhibiting cholesterol biosynthesis and uptake or enhancing cholesterol utilization and excretion. Herein, we summarize the historical review and research events, the current understandings of the molecular pathways playing key roles in regulating cholesterol homeostasis, and the cholesterol-lowering interventions in clinics or in preclinical studies as well as new cholesterol-lowering targets and their clinical advances. More importantly, we review and discuss the benefits of those interventions for the treatment of multiple diseases including atherosclerotic cardiovascular diseases, obesity, diabetes, nonalcoholic fatty liver disease, cancer, neurodegenerative diseases, osteoporosis and virus infection.
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Affiliation(s)
- Yajun Duan
- Department of Cardiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, College of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Ke Gong
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, College of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Suowen Xu
- Department of Cardiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Feng Zhang
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, College of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Xianshe Meng
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, College of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Jihong Han
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, College of Food and Biological Engineering, Hefei University of Technology, Hefei, China. .,College of Life Sciences, Key Laboratory of Bioactive Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China.
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22
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Gao Q, Wang L, Wang S, Huang B, Jing Y, Su J. Bone Marrow Mesenchymal Stromal Cells: Identification, Classification, and Differentiation. Front Cell Dev Biol 2022; 9:787118. [PMID: 35047499 PMCID: PMC8762234 DOI: 10.3389/fcell.2021.787118] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/25/2021] [Indexed: 12/20/2022] Open
Abstract
Bone marrow mesenchymal stromal cells (BMSCs), identified as pericytes comprising the hematopoietic niche, are a group of heterogeneous cells composed of multipotent stem cells, including osteochondral and adipocyte progenitors. Nevertheless, the identification and classification are still controversial, which limits their application. In recent years, by lineage tracing and single-cell sequencing, several new subgroups of BMSCs and their roles in normal physiological and pathological conditions have been clarified. Key regulators and mechanisms controlling the fate of BMSCs are being revealed. Cross-talk among subgroups of bone marrow mesenchymal cells has been demonstrated. In this review, we focus on recent advances in the identification and classification of BMSCs, which provides important implications for clinical applications.
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Affiliation(s)
- Qianmin Gao
- Institute of Translational Medicine, Shanghai University, Shanghai, China.,School of Medicine, Shanghai University, Shanghai, China.,School of Life Sciences, Shanghai University, Shanghai, China.,Shanghai University Institute of Advanced Interdisciplinary Materials Science, Shanghai, China
| | - Lipeng Wang
- Institute of Translational Medicine, Shanghai University, Shanghai, China
| | - Sicheng Wang
- Department of Orthopedics, Shanghai Zhongye Hospital, Shanghai, China
| | - Biaotong Huang
- Institute of Translational Medicine, Shanghai University, Shanghai, China.,Shanghai University Institute of Advanced Interdisciplinary Materials Science, Shanghai, China.,Wenzhou Institute of Shanghai University, Wenzhou, China
| | - Yingying Jing
- Institute of Translational Medicine, Shanghai University, Shanghai, China.,Shanghai University Institute of Advanced Interdisciplinary Materials Science, Shanghai, China
| | - Jiacan Su
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
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23
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Wang B, Wang H, Li Y, Song L. Lipid metabolism within the bone micro-environment is closely associated with bone metabolism in physiological and pathophysiological stages. Lipids Health Dis 2022; 21:5. [PMID: 34996476 PMCID: PMC8742318 DOI: 10.1186/s12944-021-01615-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 12/15/2021] [Indexed: 12/12/2022] Open
Abstract
Recent advances in society have resulted in the emergence of both hyperlipidemia and obesity as life-threatening conditions in people with implications for various types of diseases, such as cardiovascular diseases and cancer. This is further complicated by a global rise in the aging population, especially menopausal women, who mostly suffer from overweight and bone loss simultaneously. Interestingly, clinical observations in these women suggest that osteoarthritis may be linked to a higher body mass index (BMI), which has led many to believe that there may be some degree of bone dysfunction associated with conditions such as obesity. It is also common practice in many outpatient settings to encourage patients to control their BMI and lose weight in an attempt to mitigate mechanical stress and thus reduce bone pain and joint dysfunction. Together, studies show that bone is not only a mechanical organ but also a critical component of metabolism, and various endocrine functions, such as calcium metabolism. Numerous studies have demonstrated a relationship between metabolic dysfunction in bone and abnormal lipid metabolism. Previous studies have also regarded obesity as a metabolic disorder. However, the relationship between lipid metabolism and bone metabolism has not been fully elucidated. In this narrative review, the data describing the close relationship between bone and lipid metabolism was summarized and the impact on both the normal physiology and pathophysiology of these tissues was discussed at both the molecular and cellular levels.
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Affiliation(s)
- Bo Wang
- Department of Orthopedics, The first affiliated Hospital of Army Medical University, Army Medical University, Gaotanyan Street No. 30, Chongqing, 400038, China
| | - Heng Wang
- Department of Orthopedics, The first affiliated Hospital of Army Medical University, Army Medical University, Gaotanyan Street No. 30, Chongqing, 400038, China
- Battalion of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China
| | - Yuancheng Li
- Battalion of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China
| | - Lei Song
- Department of Orthopedics, The first affiliated Hospital of Army Medical University, Army Medical University, Gaotanyan Street No. 30, Chongqing, 400038, China.
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24
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Bredella MA, Fazeli PK, Bourassa J, Rosen CJ, Bouxsein ML, Klibanski A, Miller KK. The effect of short-term high-caloric feeding and fasting on bone microarchitecture. Bone 2022; 154:116214. [PMID: 34571202 PMCID: PMC8671292 DOI: 10.1016/j.bone.2021.116214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/15/2021] [Accepted: 09/20/2021] [Indexed: 01/03/2023]
Abstract
BACKGROUND States of chronic overnutrition and undernutrition are both associated with impaired bone health and increased fracture risk but there are no data on bone microarchitecture following short-term controlled nutritional challenges. OBJECTIVE The purpose of our study was to evaluate the impact of short-term high-caloric feeding and fasting on bone microarchitecture. We hypothesized that both high-caloric feeding and fasting would have negative effects on microarchitecture. MATERIALS AND METHODS We recruited 23 adult healthy subjects (13 males, 10 females, mean age 33.2 ± 1.4 years, mean BMI 26.0 ± 1.5 kg/m2). Subjects underwent an in-patient 10-day high-caloric visit (caloric intake with goal to achieve 7% weight gain), after which they went home to resume a normal diet for 13-18 days (stabilization period), and were then readmitted for a 10-day in-patient fasting stay (no caloric intake). All subjects underwent HRpQCT (XtremeCT, Scanco Medical AG, Brüttisellen, Switzerland) of the distal tibia and distal radius after each visit to assess volumetric bone mineral density (vBMD), trabecular and cortical microarchitecture, and strength estimates. The Wilcoxon signed rank test was used to perform within group comparisons. RESULTS During the high-caloric period, there was a mean increase in weight by 6.3 + 1.7% (p < 0.0001). There were no significant changes in bone parameters in the distal tibia or distal radius (p > 0.05). During the stabilization period there was a significant reduction in weight by -2.7 + 1.9% (p < 0.0001) but no change in bone parameters (p > 0.05). During the fasting period there was a further reduction in weight by -8.8 + 1.2% (p < 0.0001). In the distal tibia, there was a significant increase in total and cortical vBMD, trabecular and cortical parameters as well as strength estimates (p < 0.05). In the distal radius there was an increase in total and trabecular vBMD (p < 0.05), while there were no changes in other microarchitecture parameters or strengths estimates. CONCLUSION Short-term fasting after high-caloric feeding improves vBMD, bone microarchitecture and strength estimates of the distal tibia, while short-term high-caloric feeding does not change vBMD or microarchitecture. These results suggest that short-term fasting after high-caloric feeding in healthy individuals improves bone health and that these changes can be detected using HRpQCT in-vivo.
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Affiliation(s)
- Miriam A Bredella
- Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, United States of America.
| | - Pouneh K Fazeli
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, United States of America
| | - Jenna Bourassa
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, United States of America
| | - Clifford J Rosen
- Maine Medical Center Research Institute, Scarborough, ME, United States of America
| | - Mary L Bouxsein
- Department of Orthopedic Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, United States of America
| | - Anne Klibanski
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, United States of America
| | - Karen K Miller
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, United States of America
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25
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Lu CF, Liu WS, Huang HY, Ge XQ, Hua LY, Wang XQ, Su JB. The Positive Relationship Between the Low-Density Lipoprotein Cholesterol/Apoprotein B Ratio and Bone Turnover Markers in Patients With Type 2 Diabetes. Front Endocrinol (Lausanne) 2022; 13:903336. [PMID: 35757416 PMCID: PMC9223462 DOI: 10.3389/fendo.2022.903336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 04/22/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Dyslipidemia may contribute to low bone turnover in patients with type 2 diabetes (T2D) through mediating oxidative stress and atherosclerosis. The low-density lipoprotein cholesterol/apoprotein B (LDL-C/Apo B) ratio is a surrogate marker of small and density low-density lipoprotein cholesterol (sd-LDL-C), a most harmful group of LDL-Cs. The present study aimed to investigate the association between the LDL-C/Apo B ratio and bone turnover in patients with T2D. METHODS This study was a cross-sectional study enrolled patients with T2D from January 2021 to December 2021. Each participant was assessed for lipid profiles, bone turnover markers (BTMs), lumbar spine (L1-L4) and hip dual-energy X-ray absorptiometry (DXA) scans. Osteoporosis was diagnosed as a T-score lower than or equal to -2.5 at the spine or hip. RESULTS A total of 335 patients with T2D were enrolled in the study, and the LDL-C/Apo B ratio ranged from 0.78 to 4.00. Along with the LDL-C/Apo B ratio tertile ascending, osteocalcin (OC), C-terminal telopeptide (CTx) and N-terminal propeptide of type-I procollagen (PINP) levels gradually increased (all p < 0.05). There were no differences in lumbar spine and hip T-score, proportion of osteoporosis (all p > 0.05) among the three subgroups. The LDL-C/Apo B ratio was positively correlated with lnOC (r = 0.244, p < 0.001), lnCTx (r = 0.226, p < 0.01) and lnPINP (r = 0.211, p < 0.001). These significant positive correlations persisted even when divided into male and female subgroups. Furthermore, three multiple linear regression analyses were constructed to investigate the independent association of the LDL-C/Apo B ratio with the BTMs levels. After adjusting for other clinical parameters, the LDL-C/Apo B ratio was still significantly associated with OC level (β = 0.199, t = 3.348, p < 0.01), CTx level (β = 0.238, t = 4.084, p < 0.001) and PINP level (β = 0.162, t = 2.741, p < 0.01). CONCLUSION The LDL-C/Apo B ratio was significantly and positively associated with BTMs in patients with T2D. In clinical practice, more attention should be paid to the patients with T2D whose LDL-C/Apo B ratio is relatively low for the purpose of maintaining bone health.
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Affiliation(s)
- Chun-feng Lu
- Department of Endocrinology, Affiliated Hospital 2 of Nantong University and First People’s Hospital of Nantong City, Nantong, China
- *Correspondence: Chun-feng Lu, ; Xue-qin Wang, ; Jian-bin Su,
| | - Wang-shu Liu
- Department of Endocrinology, Affiliated Hospital 2 of Nantong University and First People’s Hospital of Nantong City, Nantong, China
| | - Hai-yan Huang
- Department of Endocrinology, Affiliated Hospital 2 of Nantong University and First People’s Hospital of Nantong City, Nantong, China
| | - Xiao-qin Ge
- Department of Endocrinology, Affiliated Hospital 2 of Nantong University and First People’s Hospital of Nantong City, Nantong, China
| | - Ling-yan Hua
- Department of Ophthalmology, Affiliated Hospital 2 of Nantong University and First People’s Hospital of Nantong City, Nantong, China
| | - Xue-qin Wang
- Department of Endocrinology, Affiliated Hospital 2 of Nantong University and First People’s Hospital of Nantong City, Nantong, China
- *Correspondence: Chun-feng Lu, ; Xue-qin Wang, ; Jian-bin Su,
| | - Jian-bin Su
- Department of Endocrinology, Affiliated Hospital 2 of Nantong University and First People’s Hospital of Nantong City, Nantong, China
- *Correspondence: Chun-feng Lu, ; Xue-qin Wang, ; Jian-bin Su,
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26
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Huang T, Fu X, Wang N, Yang M, Zhang M, Wang B, Chen T, Majaz S, Wang H, Wong CW, Liu J, Guan M. Andrographolide prevents bone loss via targeting estrogen-related receptor-α-regulated metabolic adaption of osteoclastogenesis. Br J Pharmacol 2021; 178:4352-4367. [PMID: 34233019 DOI: 10.1111/bph.15614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 05/27/2021] [Accepted: 06/28/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND AND PURPOSE Metabolic adaptation driven by oestrogen-related receptor-α (ERRα/NR3B1) is required to meet the increased energy demand during osteoclast differentiation. Here, we hypothesize that natural product, andrographolide, acts as an ERRα inverse agonist to inhibit osteoclastogenesis. EXPERIMENTAL APPROACH Virtual docking and site-directed mutagenesis analysis were employed to study the binding mode of andrographolide to ERRα. Co-immunoprecipitation, luciferase reporter assay, real-time polymerase chain reaction (PCR) and immunoblot analyses were performed to identify andrographolide as an ERRα inverse agonist. The pharmacological effects of andrographolide in vivo were assessed in mice models of osteopenia induced by either a high-fat diet in male or ovariectomy in female mice. KEY RESULTS ERRα-dependent expression of glutaminase, a rate-limiting enzyme of mitochondrial glutamine anaplerosis, is required for ex vivo bone marrow osteoclast differentiation. Andrographolide inhibited glutaminase expression induced by ERRα and co-activator peroxisome proliferator-activated receptor γ co-activator-1β (PGC-1β), leading to reduction in osteoclastogenesis. Andrographolide acted as an inverse agonist of ERRα by disrupting its interaction with co-activator PGC-1β. Phenylalanine 232, valine 395 and phenylalanine 399 of ERRα ligand-binding domain were confirmed to be essential for this effect. In contrast, glutaminase overexpression restored the impairment triggered by andrographolide. Accordingly, andrographolide suppressed osteoclastic bone resorption and attenuated bone loss in vivo. CONCLUSIONS AND IMPLICATIONS These findings demonstrate that andrographolide acts as an ERRα inverse agonist for perturbation of ERRα/PGC-1β/glutaminase axis-driven metabolic adaption during osteoclast differentiation, implying that andrographolide may be a promising natural compound for preventing physiological and pathological bone loss.
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Affiliation(s)
- Tongling Huang
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xuekun Fu
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Na Wang
- Guangdong Provincial Key Laboratory of Biocomputing, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Meng Yang
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Minyi Zhang
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Binxu Wang
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Tianke Chen
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Sidra Majaz
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Huaiyu Wang
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Chi-Wai Wong
- NeuMed Pharmaceuticals Limited, Yuen Long, Hong Kong, China
| | - Jinsong Liu
- Guangdong Provincial Key Laboratory of Biocomputing, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Min Guan
- Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
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27
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Santhanam L, Liu G, Jandu S, Su W, Wodu BP, Savage W, Poe A, Liu X, Alexander LM, Cao X, Wan M. Skeleton-secreted PDGF-BB mediates arterial stiffening. J Clin Invest 2021; 131:e147116. [PMID: 34437300 PMCID: PMC8516464 DOI: 10.1172/jci147116] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 08/24/2021] [Indexed: 11/17/2022] Open
Abstract
Evidence links osteoporosis and cardiovascular disease but the cellular and molecular mechanisms are unclear. Here we identify skeleton-secreted platelet-derived growth factor-BB (PDGF-BB) as a key mediator of arterial stiffening in response to aging and metabolic stress. Aged mice and those fed high-fat diet (HFD), relative to young mice and those fed normal chow food diet, respectively, had higher serum PDGF-BB and developed bone loss and arterial stiffening. Bone/bone marrow preosteoclasts in aged mice and HFD mice secrete an excessive amount of PDGF-BB, contributing to the elevated PDGF-BB in blood circulation. Conditioned medium prepared from preosteoclasts stimulated proliferation and migration of the vascular smooth muscle cells. Conditional transgenic mice, in which PDGF-BB is overexpressed in preosteoclasts, had 3-fold higher serum PDGF-BB concentration and developed simultaneous bone loss and arterial stiffening spontaneously at a young age. Conversely, in conditional knockout mice, in which PDGF-BB is deleted selectively in preosteoclasts, HFD did not affect serum PDGF-BB concentration; as a result, HFD-induced bone loss and arterial stiffening were attenuated. These studies confirm that preosteoclasts are a main source of excessive PDGF-BB in blood circulation during aging and metabolic stress and establish the role of skeleton-derived PDGF-BB as an important mediator of vascular stiffening.
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Affiliation(s)
- Lakshmi Santhanam
- Department of Anesthesiology and Critical Care Medicine and
- Department of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Chemical and Biomolecular Engineering, Whiting School of Engineering, The Johns Hopkins University, Baltimore, Maryland, USA
| | - Guanqiao Liu
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Sandeep Jandu
- Department of Anesthesiology and Critical Care Medicine and
| | - Weiping Su
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Orthopaedic Surgery, The Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Bulouere P. Wodu
- Department of Biotechnology, The Johns Hopkins University, Baltimore, Maryland, USA
| | - William Savage
- Department of Chemical and Biomolecular Engineering, Whiting School of Engineering, The Johns Hopkins University, Baltimore, Maryland, USA
| | - Alan Poe
- Department of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Xiaonan Liu
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Lacy M. Alexander
- Department of Kinesiology, Penn State University, University Park, Pennsylvania, USA
| | - Xu Cao
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Mei Wan
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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28
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Sul OJ, Li G, Kim JE, Kim ES, Choi HS. 7-ketocholesterol enhances autophagy via the ROS-TFEB signaling pathway in osteoclasts. J Nutr Biochem 2021; 96:108783. [PMID: 34023424 DOI: 10.1016/j.jnutbio.2021.108783] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 04/20/2021] [Accepted: 04/29/2021] [Indexed: 11/30/2022]
Abstract
Oxysterols play a critical role in human health and diseases associated with high cholesterol and oxidative stress. Given that a positive correlation was observed between cholesterol and collagen type 1 fragment (CTX-1) or serum reactive oxygen species (ROS) in humans, we hypothesized that oxidized cholesterol metabolites may participate in cholesterol-induced bone loss. Therefore, this study aimed to identify the metabolite responsible for cholesterol-associated bone loss and evaluate its effect on osteoclasts (OCs) leading to bone loss. An atherogenic diet in mice increased the levels of the oxysterol, 7-ketocholesterol (7-KC) in bone, as well as serum ROS. 7-KC increased the number and activity of OCs by enhancing autophagy via the ROS-transcription factor EB signaling pathway. These findings suggest that 7-KC acts as a cholesterol metabolite and is at least partially responsible for cholesterol-induced bone loss by inducing autophagy in OCs.
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Affiliation(s)
- Ok-Joo Sul
- Department of Biological Sciences (BK21 Program), University of Ulsan, Ulsan, Korea
| | - Guoen Li
- Department of Biological Sciences (BK21 Program), University of Ulsan, Ulsan, Korea
| | - Ji-Eun Kim
- Department of Biological Sciences (BK21 Program), University of Ulsan, Ulsan, Korea
| | - Eun-Sook Kim
- Department of Endocrinology, Ulsan University Hospital, Ulsan, Korea
| | - Hye-Seon Choi
- Department of Biological Sciences (BK21 Program), University of Ulsan, Ulsan, Korea.
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Kan B, Zhao Q, Wang L, Xue S, Cai H, Yang S. Association between lipid biomarkers and osteoporosis: a cross-sectional study. BMC Musculoskelet Disord 2021; 22:759. [PMID: 34488720 PMCID: PMC8419899 DOI: 10.1186/s12891-021-04643-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 08/23/2021] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Osteoporosis and cardiovascular diseases (CVDs) are 2 major public health problems. Osteoporosis and CVDs may be linked but the association between lipid profile and osteoporosis is still controversial. The purpose of this study was to examine the associations of total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C) and triglyceride (TG) with osteoporosis. METHODS Using inpatients' and outpatients' electronic medical records (EMR) and dual X-ray absorptiometry (DXA) database stored at The Second Hospital of Jilin University, we included 481 individuals with complete and valid lipid and bone mineral density (BMD) data in 2017. Serum samples were used to measure TC, LDL-C, HDL-C and TG. Femoral neck and total hip BMD were measured by DXA; osteoporosis was defined as femoral neck or total hip T-score ≤ -2.5. Multivariable logistic regression models were used to test the associations of TC, LDL-C, HDL-C and TG with osteoporosis. RESULTS The mean age for included individuals was 62.7 years (SD = 8.6 years); 60.1 % of them were female. Each standard deviation (SD) increase in TC (Odds Ratio [OR]: 1.48; 95 % Confidence Interval [CI]: 1.06-2.07) and TG (OR: 1.67; 95 % CI: 1.16-2.39) were associated with increased risk of osteoporosis; LDL-C and HDL-C levels were not associated with osteoporosis. Age, sex and body mass index (BMI) did not interact with the relationships of TC and TG with osteoporosis (all P > 0.10). CONCLUSIONS Higher TC and TG levels were associated with greater risk of osteoporosis in this cross-sectional study.
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Affiliation(s)
- Bo Kan
- Department of Clinical Laboratory, The Second Hospital of Jilin University, Jilin, Changchun, China
| | - Qianqian Zhao
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 232-1163 Xinmin Street, Jilin, 130021, Changchun, China
| | - Lijuan Wang
- Department of Endocrine, The Second Hospital of Jilin University, Jilin, Changchun, China
| | - Shanshan Xue
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 232-1163 Xinmin Street, Jilin, 130021, Changchun, China
| | - Hanqing Cai
- Department of Endocrine, The Second Hospital of Jilin University, Jilin, Changchun, China.
| | - Shuman Yang
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 232-1163 Xinmin Street, Jilin, 130021, Changchun, China.
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Broz K, Walk RE, Tang SY. Complications in the spine associated with type 2 diabetes: The role of advanced glycation end-products. MEDICINE IN NOVEL TECHNOLOGY AND DEVICES 2021; 11. [PMID: 35992525 PMCID: PMC9390092 DOI: 10.1016/j.medntd.2021.100065] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Type 2 diabetes mellitus (T2D) is an increasingly prevalent disease with numerous comorbidities including many in the spine. T2D is strongly linked with vertebral fractures, intervertebral disc (IVD) degeneration, and severe chronic spinal pain. Yet the causative mechanism for these musculoskeletal impairments remains unclear. The chronic hyperglycemic state in T2D promotes the formation of advanced glycation end-products (AGEs) in tissues, and the accumulation of AGEs may play a role in musculoskeletal complications by modifying the extracellular matrix, impairing cellular homeostasis, and perpetuating an inflammatory cascade via its receptor (RAGE). The AGE and RAGE associated alterations in extracellular matrix composition and morphological features of the vertebral bodies and IVDs are likely contributors to the incidence and severity of spinal pathologies in T2D. This review will broadly examine the effects of AGEs on tissues in the spine in the context of T2D, with an emphasis on the changes in the vertebrae and the IVD. Along with the clinical and epidemiological findings, we will provide an overview of preclinical rodent models of T2D that exhibit deficits in the IVD and vertebral bone. Elucidating the role of AGEs and RAGE will be crucial for understanding the disease mechanisms and translation therapies of musculoskeletal pathologies in T2D.
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Affiliation(s)
- Kaitlyn Broz
- Institute of Material Science and Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Remy E. Walk
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Simon Y. Tang
- Institute of Material Science and Engineering, Washington University in St. Louis, St. Louis, MO, USA
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, USA
- Department of Orthopaedic Surgery, Washington University in St. Louis, St. Louis, MO, USA
- Corresponding author. Department of Orthopaedic Surgery, Washington University in St. Louis, School of Medicine, 660 S. Euclid Avenue, Campus Box 8233, St. Louis, MO, 63110, USA. (S.Y. Tang)
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Chen J, Lazarenko OP, Carvalho E, Blackburn ML, Shankar K, Wankhade UD, Børsheim E. Short-Term Increased Physical Activity During Early Life Affects High-Fat Diet-Induced Bone Loss in Young Adult Mice. JBMR Plus 2021; 5:e10508. [PMID: 34258504 PMCID: PMC8260814 DOI: 10.1002/jbm4.10508] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 03/22/2021] [Accepted: 04/21/2021] [Indexed: 01/01/2023] Open
Abstract
Mechanical stresses associated with physical activity (PA) have beneficial effects on increasing BMD and improving bone quality. However, a high-fat diet (HFD) and obesity tend to have negative effects on bone, by increasing bone marrow adiposity leading to increased excretion of proinflammatory cytokines, which activate RANKL-induced bone resorption. In the current study, whether short-term increased PA via access to voluntary wheel running during early life has persistent and protective effects on HFD-induced bone resorption was investigated. Sixty 4-week-old male C57BL6/J mice were divided into two groups postweaning: without or with PA (access to voluntary running wheel 7-8 km/day) for 4 weeks. After 4 weeks with or without PA, mice were further subdivided into control diet or HFD groups for 8 weeks, and then all animals were switched back to control diet for an additional 4 weeks. Mice from the HFD groups were significantly heavier and obese; however, after 4 weeks of additional control diet their body weights returned to levels of mice on continuous control diet. Using μ-CT and confirmed by pQCT of tibias and spines ex vivo, it was determined that bone volume and trabecular BMD were significantly increased with PA in control diet animals compared with sedentary animals without access to wheels, and such anabolic effects of PA on bone were sustained after ceasing PA in adult mice. Eight weeks of a HFD deteriorated bone development in mice. Unexpectedly, early-life PA did not prevent persistent effects of HFD on deteriorating bone quality; in fact, it exacerbated a HFD-induced inflammation, osteoclastogenesis, and trabecular bone loss in adult mice. In accordance with these data, signal transduction studies revealed that a HFD-induced Ezh2, DNA methyltransferase 3a, and nuclear factor of activated T-cells 1 expression were amplified in nonadherent hematopoietic cells. In conclusion, short-term increased PA in early life is capable of increasing bone mass; however, it alters the HFD-induced bone marrow hematopoietic cell-differentiation program to exacerbate increased bone resorption if PA is halted. © 2021 Arkansas Children's Nutrition Center. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Jin‐Ran Chen
- Arkansas Children's Nutrition CenterLittle RockARUSA
- Department of PediatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
| | - Oxana P Lazarenko
- Arkansas Children's Nutrition CenterLittle RockARUSA
- Department of PediatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
| | - Eugenia Carvalho
- Arkansas Children's Research InstituteLittle RockARUSA
- Department of GeriatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
| | - Michael L Blackburn
- Arkansas Children's Nutrition CenterLittle RockARUSA
- Department of PediatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
| | - Kartik Shankar
- Arkansas Children's Nutrition CenterLittle RockARUSA
- Department of PediatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
- Present address:
Department of Pediatrics, Section of NutritionUniversity of Colorado School of MedicineAuroraCOUSA
| | - Umesh D Wankhade
- Arkansas Children's Nutrition CenterLittle RockARUSA
- Department of PediatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
| | - Elisabet Børsheim
- Arkansas Children's Nutrition CenterLittle RockARUSA
- Department of PediatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
- Arkansas Children's Research InstituteLittle RockARUSA
- Department of GeriatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
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Romero-Márquez JM, Varela-López A, Navarro-Hortal MD, Badillo-Carrasco A, Forbes-Hernández TY, Giampieri F, Domínguez I, Madrigal L, Battino M, Quiles JL. Molecular Interactions between Dietary Lipids and Bone Tissue during Aging. Int J Mol Sci 2021; 22:ijms22126473. [PMID: 34204176 PMCID: PMC8233828 DOI: 10.3390/ijms22126473] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/09/2021] [Accepted: 06/11/2021] [Indexed: 01/06/2023] Open
Abstract
Age-related bone disorders such as osteoporosis or osteoarthritis are a major public health problem due to the functional disability for millions of people worldwide. Furthermore, fractures are associated with a higher degree of morbidity and mortality in the long term, which generates greater financial and health costs. As the world population becomes older, the incidence of this type of disease increases and this effect seems notably greater in those countries that present a more westernized lifestyle. Thus, increased efforts are directed toward reducing risks that need to focus not only on the prevention of bone diseases, but also on the treatment of persons already afflicted. Evidence is accumulating that dietary lipids play an important role in bone health which results relevant to develop effective interventions for prevent bone diseases or alterations, especially in the elderly segment of the population. This review focuses on evidence about the effects of dietary lipids on bone health and describes possible mechanisms to explain how lipids act on bone metabolism during aging. Little work, however, has been accomplished in humans, so this is a challenge for future research.
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Affiliation(s)
- Jose M. Romero-Márquez
- Department of Physiology, Institute of Nutrition and Food Technology ‘‘José Mataix”, Biomedical Research Centre, University of Granada, Armilla, Avda. del Conocimiento s.n., 18100 Armilla, Spain; (J.M.R.-M.); (A.V.-L.); (M.D.N.-H.); (A.B.-C.)
| | - Alfonso Varela-López
- Department of Physiology, Institute of Nutrition and Food Technology ‘‘José Mataix”, Biomedical Research Centre, University of Granada, Armilla, Avda. del Conocimiento s.n., 18100 Armilla, Spain; (J.M.R.-M.); (A.V.-L.); (M.D.N.-H.); (A.B.-C.)
| | - María D. Navarro-Hortal
- Department of Physiology, Institute of Nutrition and Food Technology ‘‘José Mataix”, Biomedical Research Centre, University of Granada, Armilla, Avda. del Conocimiento s.n., 18100 Armilla, Spain; (J.M.R.-M.); (A.V.-L.); (M.D.N.-H.); (A.B.-C.)
| | - Alberto Badillo-Carrasco
- Department of Physiology, Institute of Nutrition and Food Technology ‘‘José Mataix”, Biomedical Research Centre, University of Granada, Armilla, Avda. del Conocimiento s.n., 18100 Armilla, Spain; (J.M.R.-M.); (A.V.-L.); (M.D.N.-H.); (A.B.-C.)
| | - Tamara Y. Forbes-Hernández
- Nutrition and Food Science Group, Department of Analytical and Food Chemistry, CITACA, CACTI, University of Vigo, 36310 Vigo, Spain;
| | - Francesca Giampieri
- Department of Clinical Sicences, Università Politecnica delle Marche, 60131 Ancona, Italy; (F.G.); (M.B.)
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Irma Domínguez
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Isabel Torres 21, 39011 Santander, Spain;
- Universidad Internacional Iberoamericana, Calle 15 Num. 36, Entre 10 y 12 IMI III, Campeche 24560, Mexico;
| | - Lorena Madrigal
- Universidad Internacional Iberoamericana, Calle 15 Num. 36, Entre 10 y 12 IMI III, Campeche 24560, Mexico;
| | - Maurizio Battino
- Department of Clinical Sicences, Università Politecnica delle Marche, 60131 Ancona, Italy; (F.G.); (M.B.)
- International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang 212013, China
| | - José L. Quiles
- Department of Physiology, Institute of Nutrition and Food Technology ‘‘José Mataix”, Biomedical Research Centre, University of Granada, Armilla, Avda. del Conocimiento s.n., 18100 Armilla, Spain; (J.M.R.-M.); (A.V.-L.); (M.D.N.-H.); (A.B.-C.)
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Isabel Torres 21, 39011 Santander, Spain;
- Correspondence:
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Zolfaroli I, Ortiz E, García-Pérez MÁ, Hidalgo-Mora JJ, Tarín JJ, Cano A. Positive association of high-density lipoprotein cholesterol with lumbar and femoral neck bone mineral density in postmenopausal women. Maturitas 2021; 147:41-46. [PMID: 33832646 DOI: 10.1016/j.maturitas.2021.03.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/08/2021] [Accepted: 03/02/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Experimental studies suggest that lipids affect bone metabolism. We aimed to elucidate whether lipid levels are associated with bone mineral density (BMD) in a cohort of postmenopausal women. DESIGN A cross-sectional study of participants in the Chronic Ailment Reduction after MENopause (CARMEN) cohort. Women underwent assessment of clinical and analytical parameters, including fasting lipid levels. BMD was assessed at both lumbar spine and hip. Homogeneity in the cohort was optimized by filtering out a series of confounding variables with a known impact on bone. MAIN OUTCOME MEASURES Association of BMD at lumbar spine and femoral neck with lipid levels. RESULTS A total of 667 of the 1304 screened women were analyzed. A strong correlation was revealed between total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDL-C) in univariate analysis. Multivariate analysis detected a significant positive association of HDL-C with BMD at both spine (p = 0.007) and femoral neck (p = 0.013). Other independent predictors of spine BMD were years since menopause (ysm, negatively associated), and body mass index (BMI) and estradiol, both positively associated with BMD. The other independent variables in the femoral neck were ysm and glucose (negatively associated) and BMI, estradiol, and phosphate, all positively associated with BMD. CONCLUSION Levels of HDL-C, but not TC, LDL-C or triglycerides, were positively associated with BMD at both the lumbar spine and femoral neck in a homogeneous cohort of postmenopausal women.
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Affiliation(s)
- Irene Zolfaroli
- Service of Obstetrics and Gynecology, Hospital Clínico-INCLIVA, Av Blasco Ibáñez 17, 46010, Valencia, Spain.
| | - Ester Ortiz
- Service of Obstetrics and Gynecology, Hospital Universitario Dr Peset, Av Gaspar Aguilar 90, 46017, Valencia, Spain.
| | - Miguel-Ángel García-Pérez
- Department of Genetics, Faculty of Biological Sciences, University of Valencia, Burjassot, and INCLIVA, Burjassot, 46100, Valencia, Spain.
| | - Juan José Hidalgo-Mora
- Service of Obstetrics and Gynecology, Hospital Clínico-INCLIVA, Av Blasco Ibáñez 17, 46010, Valencia, Spain.
| | - Juan J Tarín
- Department of Cellular Biology, Functional Biology and Physical Anthropology, Faculty of Biological Sciences, University of Valencia, Burjassot, 46100, Valencia, Spain.
| | - Antonio Cano
- Department of Pediatrics, Obstetrics and Gynecology, University of Valencia and INCLIVA, Av Blasco Ibáñez 15, 46010, Valencia, Spain.
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Chai H, Ge J, Li L, Li J, Ye Y. Hypertension is associated with osteoporosis: a case-control study in Chinese postmenopausal women. BMC Musculoskelet Disord 2021; 22:253. [PMID: 33678168 PMCID: PMC7938480 DOI: 10.1186/s12891-021-04124-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 02/24/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Osteoporosis and cardiovascular disease (CVD) are age-related diseases. It is reported that patients with CVD have a higher risk of bone loss. This retrospective study sought to reveal the association between osteoporosis and CVD in Chinese women. Although epidemiological evidence has indicated a relationship between the two, clinical data in southeast China are lacking. METHODS In total, 2873 participants completed the baseline survey from January 2007 to October 2019, and 2039 were included in this retrospective study. We divided all subjects into an osteoporosis group and a non-osteoporosis group based on their bone mineral density (BMD). Dual-energy X-ray absorptiometry (DXA) was used to examine BMD. The general information came from the questionnaire survey. Cardiovascular diseases were defined by asking participants at the first visit and checking relevant medical records if they had suffered from hypertension, coronary heart disease, or cerebral infarction. RESULTS According to the criterion, the osteoporosis group had 678 subjects, and the non-osteoporosis group had 1361 subjects. Subjects in the osteoporosis group had a significantly higher prevalence of hypertension and coronary heart disease. Besides, the proportion of subjects who drank tea and drank milk were relatively higher in the osteoporosis group. The odds ratio (OR) for suffering from osteoporosis was high if the patients had hypertension. CONCLUSIONS This study indicated that Chinese postmenopausal women with osteoporosis had a higher prevalence of hypertension. Hypertension was significantly associated with osteoporosis.
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Affiliation(s)
- Hao Chai
- Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Jirong Ge
- Key Research Laboratory of Osteoporosis Syndrome Genomics, Fujian Academy of Chinese Medical Sciences, 282 Wusi Road, Fuzhou, 350003, China.
| | - Li Li
- Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Jianyang Li
- Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Yunjin Ye
- Key Research Laboratory of Osteoporosis Syndrome Genomics, Fujian Academy of Chinese Medical Sciences, 282 Wusi Road, Fuzhou, 350003, China
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Synergistic effects of magnesium ions and simvastatin on attenuation of high-fat diet-induced bone loss. Bioact Mater 2021; 6:2511-2522. [PMID: 33665494 PMCID: PMC7889436 DOI: 10.1016/j.bioactmat.2021.01.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/21/2021] [Accepted: 01/21/2021] [Indexed: 12/17/2022] Open
Abstract
Introduction Magnesium (Mg) has a prophylactic potential against the onset of hyperlipidemia. Similar to statin, Mg is recommended as lipid-lowering medication for hypercholesterolemia and concomitantly exhibits an association with increased bone mass. The combination of statin with Mg ions (Mg2+) may be able to alleviate the high-fat diet (HFD)-induced bone loss and reduce the side-effects of statin. This study aimed to explore the feasibility of combined Mg2+ with simvastatin (SIM) for treating HFD-induced bone loss in mice and the involving mechanisms. Materials and methods C57BL/6 male mice were fed with a HFD or a normal-fat diet (NFD). Mice were intraperitoneally injected SIM and/or orally received water with additional Mg2+ until sacrificed. Enzyme-linked immunosorbent assay was performed to measure cytokines and cholesterol in serum and liver lysates. Bone mineral density (BMD) and microarchitecture were assessed by micro-computed tomography (μCT) in different groups. The adipogenesis in palmitate pre-treated HepG2 cells was performed under various treatments. Results μCT analysis showed that the trabecular bone mass was significantly lower in the HFD-fed group than that in NFD-fed group since week 8. The cortical thickness in HFD-fed group had a significant decrease at week 24, as compared with NFD-fed group. The combination of Mg2+ and SIM significantly attenuated the trabecular bone loss in HFD-fed mice via arresting the osteoclast formation and bone resorption. Besides, such combination also reduced the hepatocytic synthesis of cholesterol and inhibited matrix metallopeptidase 13 (Mmp13) mRNA expression in pre-osteoclasts. Conclusions The combination of Mg2+ and SIM shows a synergistic effect on attenuating the HFD-induced bone loss. Our current formulation may be a cost-effective alternative treatment to be indicated for obesity-related bone loss. High-fat diet-fed mouse has a susceptibility to lower trabecular bone mass as compared with that of normal-fat diet-fed mouse. The combination of Mg2+ and simvastatin attenuates the trabecular bone loss in high-fat diet-fed mice. The combination of Mg2+ and simvastatin reduces the hepatocytic synthesis of cholesterol.
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Martyniak K, Wei F, Ballesteros A, Meckmongkol T, Calder A, Gilbertson T, Orlovskaya N, Coathup MJ. Do polyunsaturated fatty acids protect against bone loss in our aging and osteoporotic population? Bone 2021; 143:115736. [PMID: 33171312 DOI: 10.1016/j.bone.2020.115736] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 11/02/2020] [Accepted: 11/05/2020] [Indexed: 02/07/2023]
Abstract
Age-related bone loss is inevitable in both men and women and there will soon be more people of extreme old age than ever before. Osteoporosis is a common chronic disease and as the proportion of older people, rate of obesity and the length of life increases, a rise in age-related degenerating bone diseases, disability, and prolonged dependency is projected. Fragility fractures are one of the most severe complications associated with both primary and secondary osteoporosis and current treatment strategies target weight-bearing exercise and pharmacological intervention, both with limited long-term success. Obesity and osteoporosis are intimately interrelated, and diet is a variable that plays a significant role in bone regeneration and repair. The Western Diet is characterized by its unhealthy components, specifically excess amounts of saturated fat intake. This review examines the impact of saturated and polyunsaturated fatty acid consumption on chronic inflammation, osteogenesis, bone architecture, and strength and explores the hypothesis that dietary polyunsaturated fats have a beneficial effect on osteogenesis, reducing bone loss by decreasing chronic inflammation, and activating bone resorption through key cellular and molecular mechanisms in our aging population. We conclude that aging, obesity and a diet high in saturated fatty acids significantly impairs bone regeneration and repair and that consumption of ω-3 polyunsaturated fatty acids is associated with significantly increased bone regeneration, improved microarchitecture and structural strength. However, ω-6 polyunsaturated fatty acids were typically pro-inflammatory and have been associated with an increased fracture risk. This review suggests a potential role for ω-3 fatty acids as a non-pharmacological dietary method of reducing bone loss in our aging population. We also conclude that contemporary amendments to the formal nutritional recommendations made by the Food and Nutrition Board may be necessary such that our aging population is directly considered.
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Affiliation(s)
- Kari Martyniak
- Biionix Cluster, University of Central Florida, Orlando, FL, United States; Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL, United States
| | - Fei Wei
- Biionix Cluster, University of Central Florida, Orlando, FL, United States; Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL, United States
| | - Amelia Ballesteros
- Biionix Cluster, University of Central Florida, Orlando, FL, United States; Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL, United States
| | - Teerin Meckmongkol
- Biionix Cluster, University of Central Florida, Orlando, FL, United States; Department of General Surgery, Nemours Children's Hospital, Orlando, FL, United States
| | - Ashley Calder
- Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL, United States
| | - Timothy Gilbertson
- Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL, United States
| | - Nina Orlovskaya
- Department of Mechanical and Aerospace Engineering, University of Central Florida, Orlando, FL, United States
| | - Melanie J Coathup
- Biionix Cluster, University of Central Florida, Orlando, FL, United States; Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL, United States.
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Mohd Ramli ES, Sukalingam K, Kamaruzzaman MA, Soelaiman IN, Pang KL, Chin KY. Direct and Indirect Effect of Honey as a Functional Food Against Metabolic Syndrome and Its Skeletal Complications. Diabetes Metab Syndr Obes 2021; 14:241-256. [PMID: 33500644 PMCID: PMC7822078 DOI: 10.2147/dmso.s291828] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 12/22/2020] [Indexed: 12/13/2022] Open
Abstract
Metabolic syndrome (MetS) refers to the simultaneous presence of hypertension, hyperglycemia, dyslipidemia and/or visceral obesity, which predisposes a person to cardiovascular diseases and diabetes. Evidence suggesting the presence of direct and indirect associations between MetS and osteoporosis is growing. Many studies have reported the beneficial effects of polyphenols in alleviating MetS in in vivo and in vitro models through their antioxidant and anti-inflammation actions. This review aims to summarize the effects of honey (based on unifloral and multi-floral nectar sources) on bone metabolism and each component of MetS. A literature search was performed using the PubMed and Scopus databases using specific search strings. Original studies related to components of MetS and bone, and the effects of honey on components of MetS and bone were included. Honey polyphenols could act synergistically in alleviating MetS by preventing oxidative damage and inflammation. Honey intake is shown to reduce blood glucose levels and prevent excessive weight gain. It also improves lipid metabolism by reducing total cholesterol, triglycerides and low-density lipoprotein, as well as increasing high-density lipoprotein. Honey can prevent bone loss by reducing the adverse effects of MetS on bone homeostasis, apart from its direct action on the skeletal system. In conclusion, honey supplementation could be integrated into the management of MetS and MetS-induced bone loss as a preventive and adjunct therapeutic agent.
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Affiliation(s)
- Elvy Suhana Mohd Ramli
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Cheras, Kuala Lumpur, Malaysia
| | - Kumeshini Sukalingam
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Cheras, Kuala Lumpur, Malaysia
| | - Mohd Amir Kamaruzzaman
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Cheras, Kuala Lumpur, Malaysia
| | - Ima Nirwana Soelaiman
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Cheras, Kuala Lumpur, Malaysia
| | - Kok-Lun Pang
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Cheras, Kuala Lumpur, Malaysia
| | - Kok-Yong Chin
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Cheras, Kuala Lumpur, Malaysia
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Zhang Q, Zhou J, Wang Q, Lu C, Xu Y, Cao H, Xie X, Wu X, Li J, Chen D. Association Between Bone Mineral Density and Lipid Profile in Chinese Women. Clin Interv Aging 2020; 15:1649-1664. [PMID: 32982199 PMCID: PMC7501971 DOI: 10.2147/cia.s266722] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 08/11/2020] [Indexed: 02/05/2023] Open
Abstract
Purpose Atherosclerotic cardiovascular disease may share the risk factors for low bone mineral density (BMD), one of which is dyslipidemia. The association between serum cholesterol and BMD remains controversial. Thus, the correlation between serum lipids and BMD in women was explored in the current study. Materials and Methods This cross-sectional study included 1116 Chinese female participants. Serum samples were collected to evaluate total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and other laboratory markers. Dual-energy X-ray absorptiometry was used to assess lumbar spine, femoral neck, and total hip BMD. Results In the postmenopausal women, a non-linear relationship was detected between TC, LDL-C, HDL-C, and lumbar spine BMD. Using segmented linear regression, the inflection points were 5.86 mmol/L, 3.52 mmol/L, and 2.37 mmol/L, respectively. To the left of the inflection point, the higher the serum lipid level, the lower the value for lumbar spine BMD. To the right of the inflection point, the higher the serum level of TC and LDL-C, the higher the value for lumbar spine BMD. In the premenopausal women, the association between HDL-C and femoral neck BMD was non-linear. In addition, LDL-C had a positive association with BMD of the femoral neck and HDL-C had an inverse association with BMD of the femoral neck in postmenopausal women. Conclusion In postmenopausal women, the relationship between TC, LDL-C, HDL-C, and lumbar spine BMD was non-linear. TC, LDL-C, and HDL-C were negatively associated with lumbar spine BMD when the values were less than 5.86 mmol/L, 3.52 mmol/L, and 2.37 mmol/L, respectively. The mechanisms of the association were unclear, and further research is warranted to clarify the relationship.
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Affiliation(s)
- Qi Zhang
- Sichuan University West China Hospital, Department of Endocrinology and Metabolism, Chengdu, Sichuan 610041, People's Republic of China
| | - Junteng Zhou
- Sichuan University West China Hospital, Department of Cardiology, Chengdu, Sichuan 610041, People's Republic of China
| | - Qin Wang
- Sichuan University West China Hospital, Department of Endocrinology and Metabolism, Chengdu, Sichuan 610041, People's Republic of China
| | - Chunyan Lu
- Sichuan University West China Hospital, Department of Endocrinology and Metabolism, Chengdu, Sichuan 610041, People's Republic of China
| | - Yong Xu
- Affiliated Hospital of Southwest Medical University, Department of Endocrinology and Metabolism, Luzhou, Sichuan 646000, People's Republic of China
| | - Hongyi Cao
- Chengdu Fifth People's Hospital, Department of Endocrinology and Metabolism, Chengdu, Sichuan 610041, People's Republic of China
| | - Xiaohua Xie
- The First People's Hospital of Liangshan Prefecture, Department of Endocrinology and Metabolism, Liangshan, Sichuan 615000, People's Republic of China
| | - Xueyan Wu
- Guangyuan Central Hospital, Department of Endocrinology and Metabolism, Guangyuan, Sichuan 628099, People's Republic of China
| | - Jing Li
- Sichuan University West China Hospital, Department of Endocrinology and Metabolism, Chengdu, Sichuan 610041, People's Republic of China
| | - Decai Chen
- Sichuan University West China Hospital, Department of Endocrinology and Metabolism, Chengdu, Sichuan 610041, People's Republic of China
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Kitano VJF, Ohyama Y, Hayashida C, Ito J, Okayasu M, Sato T, Ogasawara T, Tsujita M, Kakino A, Shimada J, Sawamura T, Hakeda Y. LDL uptake-dependent phosphatidylethanolamine translocation to the cell surface promotes fusion of osteoclast-like cells. J Cell Sci 2020; 133:jcs243840. [PMID: 32295848 DOI: 10.1242/jcs.243840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 03/25/2020] [Indexed: 11/20/2022] Open
Abstract
Osteoporosis is associated with vessel diseases attributed to hyperlipidemia, and bone resorption by multinucleated osteoclasts is related to lipid metabolism. In this study, we generated low-density lipoprotein receptor (LDLR)/lectin-like oxidized LDL receptor-1 (LOX-1, also known as Olr1) double knockout (dKO) mice. We found that, like LDLR single KO (sKO), LDLR/LOX-1 dKO impaired cell-cell fusion of osteoclast-like cells (OCLs). LDLR/LOX-1 dKO and LDLR sKO preosteoclasts exhibited decreased uptake of LDL. The cell surface cholesterol levels of both LDLR/LOX-1 dKO and LDLR sKO osteoclasts were lower than the levels of wild-type OCLs. Additionally, the amount of phosphatidylethanolamine (PE) on the cell surface was attenuated in LDLR/LOX-1 dKO and LDLR sKO preosteoclasts, whereas the PE distribution in wild-type OCLs was concentrated on the filopodia in contact with neighboring cells. Abrogation of the ATP binding cassette G1 (ABCG1) transporter, which transfers PE to the cell surface, caused decreased PE translocation to the cell surface and subsequent cell-cell fusion. The findings of this study indicate the involvement of a novel cascade (LDLR∼ABCG1∼PE translocation to cell surface∼cell-cell fusion) in multinucleation of OCLs.
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Affiliation(s)
- Victor J F Kitano
- Division of Oral Anatomy, Meikai University School of Dentistry, Sakado, Saitama 350-0283, Japan
- Division of Oral and Maxillofacial Surgery, Meikai University School of Dentistry, Sakado, Saitama 350-0283, Japan
| | - Yoko Ohyama
- Division of Oral Anatomy, Meikai University School of Dentistry, Sakado, Saitama 350-0283, Japan
- Division of Oral and Maxillofacial Surgery, Meikai University School of Dentistry, Sakado, Saitama 350-0283, Japan
| | - Chiyomi Hayashida
- Division of Oral Anatomy, Meikai University School of Dentistry, Sakado, Saitama 350-0283, Japan
| | - Junta Ito
- Josai University, Faculty of Pharmacy and Pharmaceutical Sciences, Department of Clinical Dietetics and Human Nutrition, Sakado, Saitama 350-0295, Japan
| | - Mari Okayasu
- Division of Oral-maxillofacial Surgery, Dentistry and Orthodontics, The University of Tokyo Hospital, Hongo, Tokyo 113-8655, Japan
| | - Takuya Sato
- Division of Oral Anatomy, Meikai University School of Dentistry, Sakado, Saitama 350-0283, Japan
| | - Toru Ogasawara
- Division of Oral-maxillofacial Surgery, Dentistry and Orthodontics, The University of Tokyo Hospital, Hongo, Tokyo 113-8655, Japan
| | - Maki Tsujita
- Department of Biochemistry, Graduate School of Medical Sciences, Nagoya City University, Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-8601, Japan
| | - Akemi Kakino
- Department of Physiology, Shinshu University School of Medicine, Matsumoto, Nagano 390-8621, Japan
| | - Jun Shimada
- Division of Oral and Maxillofacial Surgery, Meikai University School of Dentistry, Sakado, Saitama 350-0283, Japan
| | - Tatsuya Sawamura
- Department of Physiology, Shinshu University School of Medicine, Matsumoto, Nagano 390-8621, Japan
| | - Yoshiyuki Hakeda
- Division of Oral Anatomy, Meikai University School of Dentistry, Sakado, Saitama 350-0283, Japan
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Kim H, Beom SH, Lee SH, Koh JM, Kim BJ, Kim TH. Differential association of dietary fat intake with DXA-based estimates of bone strength according to sex in the KNHANES IV population. Arch Osteoporos 2020; 15:62. [PMID: 32333189 DOI: 10.1007/s11657-020-00737-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 04/13/2020] [Indexed: 02/03/2023]
Abstract
UNLABELLED The higher the dietary fat intake is in men, the worse their bone strength. By contrast, in women, both low and high fat intakes have negative impacts on bone strength. Dietary fat intake may be a modifiable factor affecting bone health, but this needs to be reconfirmed in further studies. PURPOSE Despite the general belief that higher fat intake may be harmful for bone health, its impact on bone strength has not been thoroughly studied. METHODS We conducted a population-based cross-sectional study derived from the Korea National Health and Nutrition Examination Surveys, including 2590 participants. Composite indices of femoral neck strength, such as the compression strength index (CSI), bending strength index (BSI), and impact strength index (ISI), were generated by combining bone mineral density, weight, and height with the femoral axis length and width. Nutritional status was assessed using a 24-h dietary recall questionnaire. RESULTS Dietary fat intake (%: energy from fat intake/total energy intake × 100) was inversely related to CSI and ISI in men, but not in women. Men in the highest three fat intake quintiles had lower CSI, BSI, and/or ISI than those in the lowest quintile (P = 0.003-0.041). In women, compared with participants in the third fat intake quintile, those in the other four quintiles had lower CSI, BSI, and/or ISI (P = 0.004-0.049). When participants were allocated to three groups according to the dietary reference intake of fat in Koreans [low (< 15%), moderate (15-30%), or high (≥ 30%)], men with a moderate or high fat intake had significantly lower ISIs than those with a low fat intake (P = 0.045 and 0.040, respectively). By contrast, compared with women consuming a moderate amount of fat, those with a high intake had lower CSI, BSI, and ISI (P = 0.024-0.048). CONCLUSION Higher fat intake in men may contribute to deteriorations in bone strength. However, this finding and the observed sex differences need to be reconfirmed using established methods for assessment of dietary intake other than the 24-h dietary recall method employed in this study.
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Affiliation(s)
- Hyeonmok Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul Medical Center, 156 Sinnae-ro, Jungnang-gu, Seoul, 02053, South Korea
| | - Sun Hee Beom
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul Medical Center, 156 Sinnae-ro, Jungnang-gu, Seoul, 02053, South Korea
| | - Seung Hun Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea
| | - Jung-Min Koh
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea
| | - Beom-Jun Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea.
| | - Tae Ho Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul Medical Center, 156 Sinnae-ro, Jungnang-gu, Seoul, 02053, South Korea.
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Associations among Bone Mineral Density, Physical Activity and Nutritional Intake in Middle-Aged Women with High Levels of Arterial Stiffness: A Pilot Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17051620. [PMID: 32138200 PMCID: PMC7084750 DOI: 10.3390/ijerph17051620] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 02/28/2020] [Accepted: 02/29/2020] [Indexed: 11/16/2022]
Abstract
There is little consensus regarding the impacts of physical activity and nutrient intake on bone mineral density (BMD) in subjects with high or low levels of arterial stiffness. This study was performed to investigate whether physical activity and nutrient intake are associated with BMD in middle-aged women with high levels of arterial stiffness. The study population consisted of middle-aged women aged 40–64 years (n = 22). BMD was assessed by dual-energy X-ray absorptiometry. Carotid-femoral pulse wave velocity (cf-PWV) was used as an indicator of arterial stiffness. Subjects were divided into two groups by median cf-PWV. Physical activity in free-living conditions was evaluated using a triaxial accelerometer. Nutrient intake was also measured using the brief-type self-administered diet history questionnaire. In the High-PWV group, BMD showed a significant negative correlation with age. Using a partial correlation model, BMD was associated with the number of steps and unsaturated fatty acid intake in the High-PWV group. These results suggest that BMD in middle-aged women with high levels of arterial stiffness may be associated with both the number of steps and nutritional intake. Recommendations of physical activity and nutritional intake for the prevention of osteopenia should include consideration of arterial stiffness.
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Rendina-Ruedy E, Rosen CJ. Lipids in the Bone Marrow: An Evolving Perspective. Cell Metab 2020; 31:219-231. [PMID: 31668874 PMCID: PMC7004849 DOI: 10.1016/j.cmet.2019.09.015] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 09/05/2019] [Accepted: 09/20/2019] [Indexed: 12/15/2022]
Abstract
Because of heavy energy demands to maintain bone homeostasis, the skeletal system is closely tied to whole-body metabolism via neuronal and hormonal mediators. Glucose, amino acids, and fatty acids are the chief fuel sources for bone resident cells during its remodeling. Lipids, which can be mobilized from intracellular depots in the bone marrow, can be a potent source of fatty acids. Thus, while it has been suggested that adipocytes in the bone marrow act as "filler" and are detrimental to skeletal homeostasis, we propose that marrow lipids are, in fact, essential for proper bone functioning. As such, we examine the prevailing evidence regarding the storage, use, and export of lipids within the skeletal niche, including from both in vitro and in vivo model systems. We also highlight the numerous challenges that remain to fully appreciate the relationship of lipid turnover to skeletal homeostasis.
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Affiliation(s)
- Elizabeth Rendina-Ruedy
- Center for Molecular Medicine, Research Institute, Maine Medical Center, Scarborough, ME 04074, USA; Vanderbilt Center for Bone Biology, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
| | - Clifford J Rosen
- Center for Molecular Medicine, Research Institute, Maine Medical Center, Scarborough, ME 04074, USA
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Chen H, Shao Z, Gao Y, Yu X, Huang S, Zeng P. Are blood lipids risk factors for fracture? Integrative evidence from instrumental variable causal inference and mediation analysis using genetic data. Bone 2020; 131:115174. [PMID: 31785374 DOI: 10.1016/j.bone.2019.115174] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 11/21/2019] [Accepted: 11/22/2019] [Indexed: 11/21/2022]
Abstract
BACKGROUND The relationship between lipids and the risk of fracture is currently controversial and whether such association is causal remains elusive. METHODS We performed two-sample inverse variance weighted (IVW) Mendelian randomization (MR) analyses to evaluate causal effects of four lipids (i.e. high-density lipoprotein cholesterol [HDL], low-density lipoprotein cholesterol [LDL], total cholesterol [TC] and triglyceride [TG]) on fracture or bone mineral density (BMD) with summary statistics from large scale genome-wide association studies (up to ~190,000 for lipids, ~66,628 for BMD and ~53,000 for fracture). We validated our MR results with extensive sensitive analyses including MR-PRESSO and MR-Egger regression. Multivariable analyses were implemented to investigate whether other lipids (i.e. LDL and TG) may confound the causal effect of HDL on fracture and mediation analyses were conducted to assess indirect effects of lipids on fracture mediated by BMD. RESULTS The IVW MR showed there existed a statistically significant association between HDL and fracture, with the odd ratio (OR) per standard deviation change of HDL on fracture being 1.12 (95% CI: 1.02-1.22, p = 1.20E-02). HDL was also detected to be causally associated with BMD (beta = -0.116; 95% CI: -0.182 ~ -0.050, p = 5.47E-04). These associations were further confirmed by the weighted median and maximum likelihood methods, with the MR-Egger regression removing the possibility of pleiotropy and the multivariable analysis excluding the confounding effect of other lipids on HDL. Negative associations of HDL with BMD among the elderly and with BMD at the lumbar spine were also discovered. However, no causal associations were detected between other lipids (OR = 0.87, 95% CI: 0.74-1.03, p = .107 for LDL; OR = 1.03; 95% CI: 0.88-1.21, p = .696 for TC and OR = 1.04; 95% CI: 0.90-1.20, p = .610 for TG) and fracture; whereas TG was positively associated BMD (beta = 0.184; 95% CI: 0.048-0.319, p = 7.93E-03). Finally, the mediation effect of BMD was estimated to be -0.116 (95% CI: -0.182 to -0.05, p = 5.47E-04) for HDL or 0.184 (95% CI: 0.048-0.319, p = 7.93E-03) for TG, implying HDL and TG could be indirectly associated with fracture risk via the pathway of BMD. CONCLUSION Our study is supportive of the causal relationship between HDL and fracture but offers little direct evidence for causal associations between other lipids and fracture, and further reveals HDL and TG may have an indirect influence on fracture mediated by BMD.
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Affiliation(s)
- Haimiao Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Zhonghe Shao
- Department of Epidemiology and Biostatistics, School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yixin Gao
- Department of Epidemiology and Biostatistics, School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xinghao Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Shuiping Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China; Center for Medical Statistics and Data Analysis, School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China.
| | - Ping Zeng
- Department of Epidemiology and Biostatistics, School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China; Center for Medical Statistics and Data Analysis, School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China.
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Kim JM, Lee WS, Kim J. Therapeutic strategy for atherosclerosis based on bone-vascular axis hypothesis. Pharmacol Ther 2020; 206:107436. [DOI: 10.1016/j.pharmthera.2019.107436] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/04/2019] [Indexed: 12/19/2022]
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45
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Sul OJ, Kim JE, Ke K, Suh JH, Choi HS. Atherogenic diet-induced bone loss is primarily due to increased osteoclastogenesis in mice. J Nutr Biochem 2020; 79:108337. [PMID: 32018113 DOI: 10.1016/j.jnutbio.2019.108337] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 11/20/2019] [Accepted: 12/20/2019] [Indexed: 12/23/2022]
Abstract
Atherogenic diet (AD) decreased bone density and increased serum cholesterol level in male mice, implying that cholesterol participates in bone loss. The aim of the present study was to identify the cells responsible for bone loss and evaluate the involved mechanism. AD resulted in increased number and surface of osteoclasts (OCs) with in vivo tartrate-resistant acid phosphatase (TRAP) staining, suggesting a critical role of OCs in cholesterol-induced bone loss. In vitro, cholesterol loading by oxidized low-density lipoprotein (oxLDL) increased the size and number of OCs as well as bone resorption activity, suggesting that cholesterol loading affects the number and activity of OCs. In contrast, cholesterol depletion by simvastatin decreased osteoclastogenesis and bone resorption. oxLDL stimulated osteoblasts (OBs) to increase expression of receptor activator of nuclear factor kappa-Β ligand (RANKL), resulting in increased OC formation when OBs were co-cultured with bone marrow derived macrophages. oxLDL increased expression of CD36 and liver X receptors (LXRα) in OCs as well as low density lipoprotein receptor (LDLR) and LXRα in OBs. These results suggest that CD36 and LXRα mediate the effect of oxLDL in OCs, whereas LDLR and LXRα mediate the effect of oxLDL in OBs. These findings demonstrate cholesterol-induced bone loss with increasing number and activity of OCs in mice, suggesting another harmful effect of cholesterol, a major cause of atherosclerosis.
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Affiliation(s)
- Ok-Joo Sul
- Department of Biological Sciences, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Ji-Eun Kim
- Department of Biological Sciences, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Ke Ke
- Department of Biological Sciences, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Jae-Hee Suh
- Department of Pathology, Ulsan University Hospital, Ulsan 44030, Republic of Korea
| | - Hye-Seon Choi
- Department of Biological Sciences, University of Ulsan, Ulsan 44610, Republic of Korea.
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Frommer KW, Hasseli R, Schäffler A, Lange U, Rehart S, Steinmeyer J, Rickert M, Sarter K, Zaiss MM, Culmsee C, Ganjam G, Michels S, Müller-Ladner U, Neumann E. Free Fatty Acids in Bone Pathophysiology of Rheumatic Diseases. Front Immunol 2019; 10:2757. [PMID: 31849953 PMCID: PMC6901602 DOI: 10.3389/fimmu.2019.02757] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 11/11/2019] [Indexed: 01/10/2023] Open
Abstract
Obesity—in which free fatty acid (FFA) levels are chronically elevated—is a known risk factor for different rheumatic diseases, and obese patients are more likely to develop osteoarthritis (OA) also in non-weight-bearing joints. These findings suggest that FFA may also play a role in inflammation-related joint damage and bone loss in rheumatoid arthritis (RA) and OA. Therefore, the objective of this study was to analyze if and how FFA influence cells of bone metabolism in rheumatic diseases. When stimulated with FFA, osteoblasts from RA and OA patients secreted higher amounts of the proinflammatory cytokine interleukin (IL)-6 and the chemokines IL-8, growth-related oncogene α, and monocyte chemotactic protein 1. Receptor activator of nuclear factor kappa B ligand (RANKL), osteoprotegerin, and osteoblast differentiation markers were not influenced by FFA. Mineralization activity of osteoblasts correlated inversely with the level of FFA-induced IL-6 secretion. Expression of the Wnt signaling molecules, axin-2 and β-catenin, was not changed by palmitic acid (PA) or linoleic acid (LA), suggesting no involvement of the Wnt signaling pathway in FFA signaling for osteoblasts. On the other hand, Toll-like receptor 4 blockade significantly reduced PA-induced IL-8 secretion by osteoblasts, while blocking Toll-like receptor 2 had no effect. In osteoclasts, IL-8 secretion was enhanced by PA and LA particularly at the earliest time point of differentiation. Differences were observed between the responses of RA and OA osteoclasts. FFA might therefore represent a new molecular factor by which adipose tissue contributes to subchondral bone damage in RA and OA. In this context, their mechanisms of action appear to be dependent on inflammation and innate immune system rather than Wnt-RANKL pathways.
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Affiliation(s)
- Klaus W Frommer
- Department of Rheumatology and Clinical Immunology, Justus-Liebig-University Gießen, Giessen, Germany
| | - Rebecca Hasseli
- Department of Rheumatology and Clinical Immunology, Justus-Liebig-University Gießen, Giessen, Germany
| | - Andreas Schäffler
- Department of Internal Medicine III, Endocrinology, Diabetes, Metabolism, Justus-Liebig-University of Giessen, Giessen, Germany
| | - Uwe Lange
- Department of Rheumatology and Clinical Immunology, Justus-Liebig-University Gießen, Giessen, Germany
| | - Stefan Rehart
- Department of Orthopedics and Trauma Surgery, Agaplesion Markus Hospital, Frankfurt, Germany
| | - Jürgen Steinmeyer
- Department of Orthopaedics and Orthopaedic Surgery, University Hospital Giessen and Marburg, Giessen, Germany
| | - Markus Rickert
- Department of Orthopaedics and Orthopaedic Surgery, University Hospital Giessen and Marburg, Giessen, Germany
| | - Kerstin Sarter
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Mario M Zaiss
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Carsten Culmsee
- Institute for Pharmacology and Clinical Pharmacy, University of Marburg, Marburg, Germany.,Center for Mind Brain and Behavior (CMBB), Universities of Marburg and Gießen, Marburg, Germany
| | - Goutham Ganjam
- Institute for Pharmacology and Clinical Pharmacy, University of Marburg, Marburg, Germany.,Center for Mind Brain and Behavior (CMBB), Universities of Marburg and Gießen, Marburg, Germany.,Department of Neurology, Philipps University Marburg, Marburg, Germany
| | - Susanne Michels
- Institute for Pharmacology and Clinical Pharmacy, University of Marburg, Marburg, Germany.,Center for Mind Brain and Behavior (CMBB), Universities of Marburg and Gießen, Marburg, Germany
| | - Ulf Müller-Ladner
- Department of Rheumatology and Clinical Immunology, Justus-Liebig-University Gießen, Giessen, Germany
| | - Elena Neumann
- Department of Rheumatology and Clinical Immunology, Justus-Liebig-University Gießen, Giessen, Germany
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Abstract
PURPOSE OF REVIEW This review addresses recent developments in studies of lipid regulation of calcific disease of arteries and cardiac valves, including the role of nuclear receptors. The role of lipid-soluble signals and their receptors is timely given the recent evidence and concerns that lipid-lowering treatment may increase the rate of progression of coronary artery calcification, which has been long associated with increased cardiovascular risk. Understanding the mechanisms will be important for interpreting such clinical information. RECENT FINDINGS New findings support regulation of calcific vascular and valvular disease by nuclear receptors, including the vitamin D receptor, glucocorticoid receptor, nutrient-sensing nuclear receptors (liver X receptor, farnesoid X receptor, and peroxisome proliferator-activated receptors), and sex hormone (estrogen and androgen) receptors. There were two major unexpected findings: first, vitamin D supplementation, which was previously believed to prevent or reduce vascular calcification, showed no cardiovascular benefit in large randomized, controlled trials. Second, both epidemiological studies and coronary intravascular ultrasound studies suggest that treatment with HMG-CoA reductase inhibitors increases progression of coronary artery calcification, raising a question of whether there are mechanically stable and unstable forms of coronary calcification. SUMMARY For clinical practice and research, these new findings offer new fundamental mechanisms for vascular calcification and provide new cautionary insights for therapeutic avenues.
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Affiliation(s)
- Tamer Sallam
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA 90095-1679
- Department of Physiology, University of California, Los Angeles, Los Angeles, CA 90095-1679
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095-1679
| | - Yin Tintut
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA 90095-1679
- Department of Physiology, University of California, Los Angeles, Los Angeles, CA 90095-1679
- Department of Orthopaedic Surgery, University of California, Los Angeles, Los Angeles, CA 90095-1679
| | - Linda L. Demer
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA 90095-1679
- Department of Physiology, University of California, Los Angeles, Los Angeles, CA 90095-1679
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095-1679
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Zhang L, Li P, Tang Z, Dou Q, Feng B. Effects of GLP-1 receptor analogue liraglutide and DPP-4 inhibitor vildagliptin on the bone metabolism in ApoE -/- mice. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:369. [PMID: 31555683 DOI: 10.21037/atm.2019.06.74] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Background It has been reported that glucagon-like peptide-1 (GLP-1) can alleviate diabetic osteoporosis (DOP). This study was to investigate the effects of GLP-1RA liraglutide and dipeptidyl peptdase-4 (DPP-4) inhibitor vildagliptin on the advanced glycation end products (AGEs)-induced bone injury in ApoE-/- mice with euglycemia. Methods The bone markers OC, PINP, PTH, TRACP and CTX, the mRNA and protein expressions of RAGE in the femur, and the femoral morphology index were determined to evaluate whether the osteoporosis was improved by liraglutide or vildagliptin. Results AGEs adversely affected the bone metabolism, characterized by reduced OC and increased CTX. However, vildagliptin reduced AGEs and increased OC, and liraglutide significantly decreased AGEs and PTH. Both vildagliptin and liraglutide had no effects on the bone metrology and RAGE expression in the femurs of ApoE-/- mice. Conclusions The elevated AGEs may exacerbate osteogenesis and increase bone resorption, and vildagliptin/liraglutide may improve bone metabolism.
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Affiliation(s)
- Lizhi Zhang
- Department of Endocrinology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| | - Peicheng Li
- Department of Endocrinology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| | - Zhaosheng Tang
- Department of Endocrinology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| | - Qin Dou
- Department of Clinical Laboratory, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| | - Bo Feng
- Department of Endocrinology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
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Modulation of Bone and Marrow Niche by Cholesterol. Nutrients 2019; 11:nu11061394. [PMID: 31234305 PMCID: PMC6628005 DOI: 10.3390/nu11061394] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 06/14/2019] [Accepted: 06/17/2019] [Indexed: 12/21/2022] Open
Abstract
Bone is a complex tissue composing of mineralized bone, bone cells, hematopoietic cells, marrow adipocytes, and supportive stromal cells. The homeostasis of bone and marrow niche is dynamically regulated by nutrients. The positive correlation between cardiovascular disease and osteoporosis risk suggests a close relationship between hyperlipidemia and/or hypercholesterolemia and the bone metabolism. Cholesterol and its metabolites influence the bone homeostasis through modulating the differentiation and activation of osteoblasts and osteoclasts. The effects of cholesterol on hematopoietic stem cells, including proliferation, migration, and differentiation, are also well-documented and further relate to atherosclerotic lesions. Correlation between circulating cholesterol and bone marrow adipocytes remains elusive, which seems opposite to its effects on osteoblasts. Epidemiological evidence has demonstrated that cholesterol deteriorates or benefits bone metabolism depending on the types, such as low-density lipoprotein (LDL) or high-density lipoprotein (HDL) cholesterol. In this review, we will summarize the latest progress of how cholesterol regulates bone metabolism and bone marrow microenvironment, including the hematopoiesis and marrow adiposity. Elucidation of these association and factors is of great importance in developing therapeutic options for bone related diseases under hypercholesterolemic conditions.
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Marino S, de Ridder D, Bishop RT, Renema N, Ponzetti M, Sophocleous A, Capulli M, Aljeffery A, Carrasco G, Gens MD, Khogeer A, Ralston SH, Gertsch J, Lamoureux F, Heymann D, Rucci N, Idris AI. Paradoxical effects of JZL184, an inhibitor of monoacylglycerol lipase, on bone remodelling in healthy and cancer-bearing mice. EBioMedicine 2019; 44:452-466. [PMID: 31151929 PMCID: PMC6606522 DOI: 10.1016/j.ebiom.2019.05.048] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 05/21/2019] [Accepted: 05/21/2019] [Indexed: 12/11/2022] Open
Abstract
Background Cancer-associated bone disease is a serious complication in bone sarcomas and metastatic carcinomas of breast and prostate origin. Monoacylglycerol lipase (MAGL) is an enzyme of the endocannabinoid system, and is responsible for the degradation of the most abundant endocannabinoid in bone, 2-arachidonoyl glycerol (2AG). Methods The effects of the verified MAGL inhibitor on bone remodelling were assessed in healthy mice and in mouse models of bone disease caused by prostate and breast cancers and osteosarcoma. Findings JZL184 reduced osteolytic bone metastasis in mouse models of breast and prostate cancers, and inhibited skeletal tumour growth, metastasis and the formation of ectopic bone in models of osteosarcoma. Additionally, JZL184 suppressed cachexia and prolonged survival in mice injected with metastatic osteosarcoma and osteotropic cancer cells. Functional and histological analysis revealed that the osteoprotective action of JZL184 in cancer models is predominately due to inhibition of tumour growth and metastasis. In the absence of cancer, however, exposure to JZL184 exerts a paradoxical reduction of bone volume via an effect that is mediated by both Cnr1 and Cnr2 cannabinoid receptors. Interpretation MAGL inhibitors such as JZL184, or its novel analogues, may be of value in the treatment of bone disease caused by primary bone cancer and bone metastasis, however, activation of the skeletal endocannabinoid system may limit their usefulness as osteoprotective agents. The cannabinoid system plays a role in cancer and bone remodelling. Inhibition of MAGL reduced skeletal tumour growth, osteolysis, metastasis and prolonged survival in mouse models. In the absence of cancer, MAGL inhibition exerted a paradoxical reduction of bone volume via an effect mediated by Cnr1/2. Targeting MAGL is of potential therapeutic efficacy in primary bone cancer and bone metastasis. However, activation of cannabinoid receptors may limit the usefulness of MAGL inhibitors.
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Affiliation(s)
- Silvia Marino
- Department of Oncology and Metabolism, University of Sheffield, Medical School, Beech Hill Road, Sheffield S10 2RX, UK; Bone and Cancer Group, Edinburgh Cancer Research Centre, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, EH4 2XR, UK
| | - Daniëlle de Ridder
- Department of Oncology and Metabolism, University of Sheffield, Medical School, Beech Hill Road, Sheffield S10 2RX, UK
| | - Ryan T Bishop
- Department of Oncology and Metabolism, University of Sheffield, Medical School, Beech Hill Road, Sheffield S10 2RX, UK
| | - Nathalie Renema
- INSERM, U1238, University of Nantes, Faculty of Medicine, 1 rue Gaston Veil, 44035 Nantes, Cedex 1, France
| | - Marco Ponzetti
- University of L'Aquila, Department of Biotechnological and Applied Clinical Sciences, L'Aquila, Italy
| | - Antonia Sophocleous
- Rheumatic disease unit, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Crewe Road, Edinburgh EH4 2XU, UK; Department of Life Sciences, School of Sciences, European University Cyprus, 6 Diogenes Street, 1516 Nicosia, Cyprus
| | - Mattia Capulli
- University of L'Aquila, Department of Biotechnological and Applied Clinical Sciences, L'Aquila, Italy
| | - Abdullah Aljeffery
- Department of Oncology and Metabolism, University of Sheffield, Medical School, Beech Hill Road, Sheffield S10 2RX, UK
| | - Giovana Carrasco
- Department of Oncology and Metabolism, University of Sheffield, Medical School, Beech Hill Road, Sheffield S10 2RX, UK
| | | | - Asim Khogeer
- Department of Oncology and Metabolism, University of Sheffield, Medical School, Beech Hill Road, Sheffield S10 2RX, UK; Bone and Cancer Group, Edinburgh Cancer Research Centre, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, EH4 2XR, UK
| | - Stuart H Ralston
- Rheumatic disease unit, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Crewe Road, Edinburgh EH4 2XU, UK
| | - Jürg Gertsch
- Institute of Biochemistry and Molecular Medicine, University of Bern, Switzerland
| | - Francois Lamoureux
- INSERM, U1238, University of Nantes, Faculty of Medicine, 1 rue Gaston Veil, 44035 Nantes, Cedex 1, France
| | - Dominique Heymann
- Department of Oncology and Metabolism, University of Sheffield, Medical School, Beech Hill Road, Sheffield S10 2RX, UK; INSERM, U1232, CRCINA, Institut de Cancérologie de l'Ouest, University of Nantes, Université d'Angers, Blvd Jacques Monod, 44805 Saint-Herblain, France
| | - Nadia Rucci
- Department of Oncology and Metabolism, University of Sheffield, Medical School, Beech Hill Road, Sheffield S10 2RX, UK; University of L'Aquila, Department of Biotechnological and Applied Clinical Sciences, L'Aquila, Italy
| | - Aymen I Idris
- Department of Oncology and Metabolism, University of Sheffield, Medical School, Beech Hill Road, Sheffield S10 2RX, UK; Bone and Cancer Group, Edinburgh Cancer Research Centre, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, EH4 2XR, UK.
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