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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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2
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Seal A, Hughes M, Wei F, Pugazhendhi AS, Ngo C, Ruiz J, Schwartzman JD, Coathup MJ. Sphingolipid-Induced Bone Regulation and Its Emerging Role in Dysfunction Due to Disease and Infection. Int J Mol Sci 2024; 25:3024. [PMID: 38474268 DOI: 10.3390/ijms25053024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/02/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024] Open
Abstract
The human skeleton is a metabolically active system that is constantly regenerating via the tightly regulated and highly coordinated processes of bone resorption and formation. Emerging evidence reveals fascinating new insights into the role of sphingolipids, including sphingomyelin, sphingosine, ceramide, and sphingosine-1-phosphate, in bone homeostasis. Sphingolipids are a major class of highly bioactive lipids able to activate distinct protein targets including, lipases, phosphatases, and kinases, thereby conferring distinct cellular functions beyond energy metabolism. Lipids are known to contribute to the progression of chronic inflammation, and notably, an increase in bone marrow adiposity parallel to elevated bone loss is observed in most pathological bone conditions, including aging, rheumatoid arthritis, osteoarthritis, and osteomyelitis. Of the numerous classes of lipids that form, sphingolipids are considered among the most deleterious. This review highlights the important primary role of sphingolipids in bone homeostasis and how dysregulation of these bioactive metabolites appears central to many chronic bone-related diseases. Further, their contribution to the invasion, virulence, and colonization of both viral and bacterial host cell infections is also discussed. Many unmet clinical needs remain, and data to date suggest the future use of sphingolipid-targeted therapy to regulate bone dysfunction due to a variety of diseases or infection are highly promising. However, deciphering the biochemical and molecular mechanisms of this diverse and extremely complex sphingolipidome, both in terms of bone health and disease, is considered the next frontier in the field.
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Affiliation(s)
- Anouska Seal
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
| | - Megan Hughes
- School of Biosciences, Cardiff University, Cardiff CF10 3AT, UK
| | - Fei Wei
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Abinaya S Pugazhendhi
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Christopher Ngo
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Jonathan Ruiz
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | | | - Melanie J Coathup
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
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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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4
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Song F, Lee WD, Marmo T, Ji X, Song C, Liao X, Seeley R, Yao L, Liu H, Long F. Osteoblast-intrinsic defect in glucose metabolism impairs bone formation in type II diabetic male mice. eLife 2023; 12:e85714. [PMID: 37144869 PMCID: PMC10198725 DOI: 10.7554/elife.85714] [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: 12/21/2022] [Accepted: 05/04/2023] [Indexed: 05/06/2023] Open
Abstract
Skeletal fragility is associated with type 2 diabetes mellitus (T2D), but the underlying mechanism is not well understood. Here, in a mouse model for youth-onset T2D, we show that both trabecular and cortical bone mass is reduced due to diminished osteoblast activity. Stable isotope tracing in vivo with 13C-glucose demonstrates that both glycolysis and glucose fueling of the TCA cycle are impaired in diabetic bones. Similarly, Seahorse assays show suppression of both glycolysis and oxidative phosphorylation by diabetes in bone marrow mesenchymal cells as a whole, whereas single-cell RNA sequencing reveals distinct modes of metabolic dysregulation among the subpopulations. Metformin not only promotes glycolysis and osteoblast differentiation in vitro, but also improves bone mass in diabetic mice. Finally, osteoblast-specific overexpression of either Hif1a, a general inducer of glycolysis, or Pfkfb3 which stimulates a specific step in glycolysis, averts bone loss in T2D mice. The study identifies osteoblast-intrinsic defects in glucose metabolism as an underlying cause of diabetic osteopenia, which may be targeted therapeutically.
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Affiliation(s)
- Fangfang Song
- Translational Research Program in Pediatric Orthopedics, Department of Surgery, The Children’s Hospital of PhiladelphiaPhiladelphiaUnited States
- The State Key Laboratory Breeding Base of Basic Science of Stomatology and Key Laboratory for Oral Biomedicine of Ministry of Education, School and Hospital of Stomatology, Wuhan UniversityWuhanChina
| | - Won Dong Lee
- Lewis Sigler Institute for Integrative Genomics, Princeton UniversityPrincetonUnited States
| | - Tyler Marmo
- Translational Research Program in Pediatric Orthopedics, Department of Surgery, The Children’s Hospital of PhiladelphiaPhiladelphiaUnited States
| | - Xing Ji
- Translational Research Program in Pediatric Orthopedics, Department of Surgery, The Children’s Hospital of PhiladelphiaPhiladelphiaUnited States
| | - Chao Song
- Translational Research Program in Pediatric Orthopedics, Department of Surgery, The Children’s Hospital of PhiladelphiaPhiladelphiaUnited States
| | - Xueyang Liao
- Translational Research Program in Pediatric Orthopedics, Department of Surgery, The Children’s Hospital of PhiladelphiaPhiladelphiaUnited States
| | - Rebecca Seeley
- Translational Research Program in Pediatric Orthopedics, Department of Surgery, The Children’s Hospital of PhiladelphiaPhiladelphiaUnited States
| | - Lutian Yao
- Translational Research Program in Pediatric Orthopedics, Department of Surgery, The Children’s Hospital of PhiladelphiaPhiladelphiaUnited States
| | - Haoran Liu
- Department of Computer Science, New Jersey Institute of TechnologyNewarkUnited States
| | - Fanxin Long
- Translational Research Program in Pediatric Orthopedics, Department of Surgery, The Children’s Hospital of PhiladelphiaPhiladelphiaUnited States
- Deaprtment of Orthopedic Surgery, University of PennsylvaniaPhiladelphiaUnited States
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De Angelis P, Rella E, Manicone PF, Gasparini G, Giovannini V, Liguori MG, Camodeca F, De Rosa G, Cavalcanti C, D'Addona A. The Effect of Hyperlipidemia on Peri-implant Health: A Clinical and Radiographical Prospective Study. BIOMED RESEARCH INTERNATIONAL 2023; 2023:7570587. [PMID: 37284029 PMCID: PMC10241576 DOI: 10.1155/2023/7570587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 07/13/2022] [Indexed: 06/08/2023]
Abstract
High levels of cholesterol and triglycerides may have a negative effect on the immune system and bone health, leading to lower bone mineral density, an increased risk of osteoporosis, and bone fractures, and could therefore also be related to a significant worsening of peri-implant health. The purpose of the following study was to evaluate whether the altered lipid profile in patients who undergo implant insertion surgery represents a prognostic factor capable of influencing clinical outcomes. This prospective observational study was conducted on 93 subjects; patients were required to have taken blood tests to obtain triglycerides (TG), total cholesterol, low-density lipoprotein (LDL), and high-density lipoprotein (HDL) levels prior to the surgical procedure to classify them according to current American Heart Association guidelines. The outcomes considered were marginal bone loss (MBL) 3 years after implant placement, full-mouth plaque score (FMPS), and full-mouth bleeding score (FMBS) 3 years after surgery. A statistically significant correlation was found between hypertriglyceridemia and MBL as well as between total cholesterol and MBL. There is no statistically significant correlation between the variables analyzed and the secondary outcomes 3 years after implant placement. Peri-implant marginal bone loss may be influenced by hyperlipidemia. However, further studies are needed, with larger samples and more extensive follow-ups, to confirm these results.
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Affiliation(s)
- Paolo De Angelis
- Department of Head and Neck and Sensory Organs, Division of Oral Surgery and Implantology, Fondazione Policlinico Universitario A. Gemelli IRCCS–Università Cattolica del Sacro Cuore, Rome, Italy
| | - Edoardo Rella
- Department of Head and Neck and Sensory Organs, Division of Oral Surgery and Implantology, Fondazione Policlinico Universitario A. Gemelli IRCCS–Università Cattolica del Sacro Cuore, Rome, Italy
| | - Paolo Francesco Manicone
- Department of Head and Neck and Sensory Organs, Division of Oral Surgery and Implantology, Fondazione Policlinico Universitario A. Gemelli IRCCS–Università Cattolica del Sacro Cuore, Rome, Italy
| | - Giulio Gasparini
- Department of Head and Neck and Sensory Organs, Division of Oral Surgery and Implantology, Fondazione Policlinico Universitario A. Gemelli IRCCS–Università Cattolica del Sacro Cuore, Rome, Italy
| | - Valerio Giovannini
- Department of Head and Neck and Sensory Organs, Division of Oral Surgery and Implantology, Fondazione Policlinico Universitario A. Gemelli IRCCS–Università Cattolica del Sacro Cuore, Rome, Italy
| | - Margherita Giorgia Liguori
- Department of Head and Neck and Sensory Organs, Division of Oral Surgery and Implantology, Fondazione Policlinico Universitario A. Gemelli IRCCS–Università Cattolica del Sacro Cuore, Rome, Italy
| | - Francesca Camodeca
- Department of Head and Neck and Sensory Organs, Division of Oral Surgery and Implantology, Fondazione Policlinico Universitario A. Gemelli IRCCS–Università Cattolica del Sacro Cuore, Rome, Italy
| | - Giuseppe De Rosa
- Department of Head and Neck and Sensory Organs, Division of Oral Surgery and Implantology, Fondazione Policlinico Universitario A. Gemelli IRCCS–Università Cattolica del Sacro Cuore, Rome, Italy
| | - Camilla Cavalcanti
- Department of Head and Neck and Sensory Organs, Division of Oral Surgery and Implantology, Fondazione Policlinico Universitario A. Gemelli IRCCS–Università Cattolica del Sacro Cuore, Rome, Italy
| | - Antonio D'Addona
- Department of Head and Neck and Sensory Organs, Division of Oral and Maxillofacial Surgery, Fondazione Policlinico Universitario A. Gemelli IRCCS–Università Cattolica del Sacro Cuore, Rome, Italy
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6
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Lv F, Cai X, Lin C, Yang W, Hu S, Ji L. Proprotein Convertase Subtilisin/Kexin Type 9 Inhibitors and the Risk of Fracture: A Systematic Review and Meta-analysis of Randomized Controlled Trials. Calcif Tissue Int 2023:10.1007/s00223-023-01085-0. [PMID: 37099141 DOI: 10.1007/s00223-023-01085-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 04/13/2023] [Indexed: 04/27/2023]
Abstract
Osteoporosis and hyperlipidemia are closely correlated and statins might be associated with a decreased risk of fracture. We aimed to investigate the association between proprotein convertase subtilisin/kexin type 9 inhibitors (PCSK9i) therapy and the risk of fracture. The PubMed, Cochrane library, and EMBASE databases were systematically searched from the inception dates to October 22, 2022. Randomized clinical trials (RCTs) that addressed to fracture events of participants using alirocumab, evolocumab, bococizumab or inclisiran, with a follow-up of ≥ 24 weeks were included. Meta-analyses were conducted to calculate the odds ratio (OR) with 95% confidence intervals (CIs) for major osteoporotic fracture, hip fracture, osteoporotic non-vertebral fracture, and total fracture. 30 trials assessing PCSK9i among 95, 911 adults were included. There were no significant associations between PCSK9i therapy and the risk of major osteoporotic fracture [OR 1.08 (95% Cl 0.87-1.34), p = 0.49], hip fracture [OR 1.05 (95% Cl 0.73-1.53), p = 0.79], osteoporotic non-vertebral fracture [OR 1.03 (95% Cl 0.80-1.32), p = 0.83], and total fracture [OR 1.03 (95% Cl 0.88-1.19), p = 0.74] over a period of 6-64 months. No significant associations were detected in any of the sensitivity analyses and subgroup analyses stratified by the type of PCSK9i, follow-up duration, age, sex, sample size, and patient profile. Pooled results of our meta-analysis showed that exposure to PCSK9i was not associated with reduced risks of fracture in the short term.
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Affiliation(s)
- Fang Lv
- Department of Endocrinology and Metabolism, Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, 100044, China
| | - Xiaoling Cai
- Department of Endocrinology and Metabolism, Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, 100044, China.
| | - Chu Lin
- Department of Endocrinology and Metabolism, Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, 100044, China
| | - Wenjia Yang
- Department of Endocrinology and Metabolism, Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, 100044, China
| | - Suiyuan Hu
- Department of Endocrinology and Metabolism, Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, 100044, China
| | - Linong Ji
- Department of Endocrinology and Metabolism, Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, 100044, China.
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Song J, Zhang Y, Zhu Y, Jin X, Li L, Wang C, Zhou Y, Li Y, Wang D, Hu M. Structural characterization and anti-osteoporosis effects of polysaccharide purified from Eucommia ulmoides Oliver cortex based on its modulation on bone metabolism. Carbohydr Polym 2023; 306:120601. [PMID: 36746570 DOI: 10.1016/j.carbpol.2023.120601] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/28/2022] [Accepted: 01/16/2023] [Indexed: 01/20/2023]
Abstract
EuOCP3, with a molecular weight of 38.1 kDa, is an acidic polysaccharide purified from Eucommia ulmoides Oliver cortex. Herein, we determined that the main backbone of EuOCP3 was predominantly composed of →4)-α-GalpA-(1 → 4)-α-GalpA-(1→, →4)-α-GalpA-(1 → 5)-α-Araf-(1→, →4)-α-GalpA-(1 → 2)-α-Rhap-(1→, and →4)-α-GalpA-(1 → 5)-α-Araf-(1 → 2)-α-Rhap-(1 → repeating blocks, which were connected by →2,3,5)-α-Araf-(1→. The side chains, substituted at C-2 and C-5 of →2,3,5)-α-Araf-(1→, contained T-β-Araf→ and T-β-Araf → 4)-α-GalpA-(1 → residues. In dexamethasone (Dex)-induced osteoporosis (OP) mice, EuOCP3 treatment restored cortical bone thickness, increased mineralized bone area, enhanced the number of osteoblasts, and decreased the number of osteoclasts on the surface of cortical bone. Combining analysis of gut microflora, serum metabolite profiles, and biological detection results, we demonstrated that EuOCP3 regulated the abundance of specific species within the gut microflora, such as g_Dorea and g_Prevotella, and ameliorated oxidative stress. In turn, enhancement of osteogenic function and restoration of bone metabolism via the extracellular signal-regulated kinase (ERK)/c-Jun N-terminal kinase (JNK)/nuclear factor erythroid-2 related factor 2 (Nrf2) signaling pathway was indicated. The current findings contribute to understanding the potential of EuOCP3 in anti-OP treatment.
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Affiliation(s)
- Jiyu Song
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun 130021, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, China.
| | - Yongfeng Zhang
- School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Yanfeng Zhu
- School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Xinghui Jin
- School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Lanzhou Li
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun 130118, China.
| | - Chunyue Wang
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun 130118, China.
| | - Ying Zhou
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun 130021, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, China.
| | - Yutong Li
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun 130021, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, China.
| | - Di Wang
- School of Life Sciences, Jilin University, Changchun 130012, China; Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun 130118, China.
| | - Min Hu
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun 130021, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, China.
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Cavati G, Pirrotta F, Merlotti D, Ceccarelli E, Calabrese M, Gennari L, Mingiano C. Role of Advanced Glycation End-Products and Oxidative Stress in Type-2-Diabetes-Induced Bone Fragility and Implications on Fracture Risk Stratification. Antioxidants (Basel) 2023; 12:antiox12040928. [PMID: 37107303 PMCID: PMC10135862 DOI: 10.3390/antiox12040928] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/06/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
Type 2 diabetes (T2D) and osteoporosis (OP) are major causes of morbidity and mortality that have arelevant health and economic burden. Recent epidemiological evidence suggests that both of these disorders are often associated with each other and that T2D patients have an increased risk of fracture, making bone an additional target of diabetes. As occurs for other diabetic complications, the increased accumulation of advanced glycation end-products (AGEs) and oxidative stress represent the major mechanisms explaining bone fragility in T2D. Both of these conditions directly and indirectly (through the promotion of microvascular complications) impair the structural ductility of bone and negatively affect bone turnover, leading to impaired bone quality, rather than decreased bone density. This makes diabetes-induced bone fragility remarkably different from other forms of OP and represents a major challenge for fracture risk stratification, since either the measurement of BMD or the use of common diagnostic algorithms for OP have a poor predictive value. We review and discuss the role of AGEs and oxidative stress on the pathophysiology of bone fragility in T2D, providing some indications on how to improve fracture risk prediction in T2D patients.
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Affiliation(s)
- Guido Cavati
- Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy
| | - Filippo Pirrotta
- Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy
| | - Daniela Merlotti
- Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy
| | - Elena Ceccarelli
- Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy
| | - Marco Calabrese
- Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy
| | - Luigi Gennari
- Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy
| | - Christian Mingiano
- Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy
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9
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Bone Marrow Adipose Tissue: Regulation of Osteoblastic Niche, Hematopoiesis and Hematological Malignancies. Stem Cell Rev Rep 2023:10.1007/s12015-023-10531-3. [PMID: 36930385 DOI: 10.1007/s12015-023-10531-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/10/2023] [Indexed: 03/18/2023]
Abstract
Bone marrow adipose tissue (BMAT) creates a specific microniche within multifunctional bone marrow (BM) ecosystem which imposes changes in surrounding cells and at systemic level. Moreover, BMAT contributes to spatial and temporal separation and metabolic compartmentalization of BM, thus regulating BM homeostasis and diseases. Recent findings have identified novel progenitor subsets of bone marrow adipocytes (BMAd)s recruited during the BM adipogenesis within different skeletal and hematopoietic stem cell niches. Potential of certain mesenchymal BM cells to differentiate into both osteogenic and adipogenic lineages, contributes to the complex interplay of BMAT with endosteal (osteoblastic) niche compartments as an important cellular player in bone tissue homeostasis. Targeting and ablation of BMAT cells at certain states might be an optional and promising strategy for improvement of bone health. Additionally, recent findings demonstrated spatial distribution of BMAds related to hematopoietic cells and pointed out important functional roles in the vital processes such as long-term hematopoiesis. BM adipogenesis appears to be an emergency phenomenon that follows the production of hematopoietic stem and progenitor cell niche factors, thus regulating physiological, stressed, and malignant hematopoiesis. Lipolytic and secretory activity of BMAds can influence survival and proliferation of hematopoietic cells at different maturation stages. Due to their different lipid status, constitutive and regulated BMAds are important determinants of normal and malignant hematopoietic cells. Further elucidation of cellular and molecular players involved in BMAT expansion and crosstalk with malignant cells is of paramount importance for conceiving the new therapies for improvement of BM health.
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10
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Evaluation of the Association between Low-Density Lipoprotein (LDL) and All-Cause Mortality in Geriatric Patients with Hip Fractures: A Prospective Cohort Study of 339 Patients. J Pers Med 2023; 13:jpm13020345. [PMID: 36836579 PMCID: PMC9967768 DOI: 10.3390/jpm13020345] [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: 01/22/2023] [Revised: 02/11/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023] Open
Abstract
BACKGROUND Many factors affect the prognosis of hip fractures in the elderly. Some studies have suggested a direct or indirect association among serum lipid levels, osteoporosis, and hip fracture risk. LDL levels were found to have a statistically significant nonlinear U-shaped relationship with hip fracture risk. However, the relationship between serum LDL levels and the prognosis of patients with hip fractures remains unclear. Therefore, in this study, we assessed the influence of serum LDL levels on patient mortality over a long-term follow-up period. METHODS Elderly patients with hip fractures were screened between January 2015 and September 2019, and their demographic and clinical characteristics were collected. Linear and nonlinear multivariate Cox regression models were used to identify the association between LDL levels and mortality. Analyses were performed using Empower Stats and R software. RESULTS Overall, 339 patients with a mean follow-up period of 34.17 months were included in this study. Ninety-nine patients (29.20%) died due to all-cause mortality. Linear multivariate Cox regression models showed that LDL levels were associated with mortality (HR = 0.69, 95%CI: 0.53, 0.91, p = 0.0085) after adjusting for confounding factors. However, the linear association was unstable, and nonlinearity was identified. An LDL concentration of 2.31 mmol/L was defined as the inflection point for prediction. A LDL level < 2.31 mmol/L was associated with mortality (HR = 0.42, 95%CI: 0.25, 0.69, p = 0.0006), whereas LDL > 2.31 mmol/L was not a risk factor for mortality (HR = 1.06, 95%CI: 0.70, 1.63, p = 0.7722). CONCLUSIONS The preoperative LDL level was nonlinearly associated with mortality in elderly patients with hip fractures, and the LDL level was a risk indicator of mortality. Furthermore, 2.31 mmol/L could be considered a predictor cut-off for risk.
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11
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Zheng M, Wan Y, Liu G, Gao Y, Pan X, You W, Yuan D, Shen J, Lu J, Wang X, Zheng G, Han Z, Li X, Chen K, Xing X, Zhang D, Weng C, Wei Q, Zhang Y, Lin H. Differences in the prevalence and risk factors of osteoporosis in chinese urban and rural regions: a cross-sectional study. BMC Musculoskelet Disord 2023; 24:46. [PMID: 36658540 PMCID: PMC9850530 DOI: 10.1186/s12891-023-06147-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 01/09/2023] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Bone mineral density (BMD) and prevalence of osteoporosis may differ between urban and rural populations. This study aimed to investigate the differences in BMD characteristics between urban and rural populations in Jiangsu, China. METHODS A total of 2,711 participants aged 20 years and older were included in the cross-sectional study. Multistage and stratified cluster random sampling was used as the sampling strategy. BMD was measured by the method of dual-energy x-ray absorptiometry (DXA). Data were collected through questionnaires/interview. BMD values at the lumbar spine (L1-L4), femoral neck, total hip, and greater trochanter were collected. Descriptive statistics were used to demonstrate the characteristics of urban and rural participants. Multivariate logistic regression analysis was utilized to analyze the factors that may be associated with osteoporosis in urban and rural populations. RESULTS Of these participants, 1,540 (50.49%) were females and 1,363 (42.14%) were from urban. The prevalence of osteoporosis in urban and rural populations was 5.52% and 10.33%, respectively. In terms of gender, the prevalence of osteoporosis was 2.68% in males and 13.82% in females. For menopausal status, the prevalence of osteoporosis was 30.34% in postmenopausal females and 4.78% in premenopausal females. In urban populations, older age [adjusted odds ratio (AOR) = 2.36, 95%CI, 2.35-2.36), hypertension (AOR = 1.37, 95%CI, 1.36-1.37), unmarried (AOR = 4.04, 95%CI, 3.99-4.09), smoking everyday (AOR = 2.26, 95%CI, 2.23-2.28), family history of osteoporosis (AOR = 1.66, 95%CI, 1.65-1.67), dyslipidemia (AOR = 1.05, 95%CI, 1.04-1.05), and higher β-crosslaps (β-CTX) level (AOR = 1.02, 95%CI, 1.02-1.02) were associated with an increased risk of osteoporosis, while males (AOR = 0.04, 95%CI, 0.04-0.04), higher education level (AOR = 0.95, 95%CI, 0.95-0.95), and aquatic product intake (AOR = 0.99, 95%CI, 0.99-0.99) were related to decreased risk of osteoporosis. Similar results were also observed in rural populations, and (all P < 0.05). CONCLUSION The prevalence of osteoporosis in rural populations was higher than that in urban populations, and the factors associated with the risk of osteoporosis were similar in urban and rural populations.
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Affiliation(s)
- Miao Zheng
- grid.452666.50000 0004 1762 8363The Osteoporosis Clinical Center, The Second Affiliated Hospital of Soochow University, Suzhou, 215004 China
| | - Yanan Wan
- grid.410734.50000 0004 1761 5845Department of Non-Communicable Chronic Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, 210009 China
| | - Gongwen Liu
- grid.410745.30000 0004 1765 1045Department of Orthopedics, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, 215004 China
| | - Yan Gao
- grid.452273.50000 0004 4914 577XDepartment of Orthopedics, The First People’s Hospital of Kunshan, Kunshan, 215300 China
| | - Xiaoqun Pan
- grid.410734.50000 0004 1761 5845Department of Non-Communicable Chronic Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, 210009 China
| | - Wanxi You
- Department of Chronic Disease Prevention and Control, Luhe District Center for Disease Control and Prevention, Nanjing, 215200 China
| | - Donglan Yuan
- grid.412676.00000 0004 1799 0784Department of Nuclear Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029 China
| | - Jianxin Shen
- Department of Chronic Disease Prevention and Control, Suzhou Wujiang District Center for Disease Control and Prevention, Suzhou, 215200 China
| | - Junhua Lu
- Department of Chronic Disease Prevention and Control, Chongchuan District Center for Disease Control and Prevention, Nantong, 226001 China
| | - Xia Wang
- grid.452883.0Department of Osteoporosis, Third Affiliated Hospital of Nantong University, Nantong, 226000 China
| | - Gangfeng Zheng
- Department of Chronic Diseases, Jingjiang Center for Disease Control and Prevention, Jingjiang 214500, Beijing, China
| | - Zhiqiang Han
- grid.452858.60000 0005 0368 2155Taizhou Hospital of Traditional Chinese Medicine, Taizhou, 225300 China
| | - Xinlin Li
- Department of Chronic Diseases, Nantong Center for Disease Control and Prevention, Nantong, 214500 China
| | - Kai Chen
- grid.411634.50000 0004 0632 4559XuYi People’s Hospital, Huaian, 211700 China
| | - Xiaoxi Xing
- Quanshan District Center for Disease Control and Prevention, Xuzhou, 221002 China
| | - Dong Zhang
- grid.452666.50000 0004 1762 8363The Osteoporosis Clinical Center, The Second Affiliated Hospital of Soochow University, Suzhou, 215004 China
| | - Chengwei Weng
- grid.452666.50000 0004 1762 8363The Osteoporosis Clinical Center, The Second Affiliated Hospital of Soochow University, Suzhou, 215004 China
| | - Qi Wei
- The Osteoporosis Clinical Center, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China.
| | - Yongqing Zhang
- Department of Non-Communicable Chronic Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, 210009, China.
| | - Hua Lin
- Department of Orthopedics, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, China.
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Orban E, Pap Z, Micu AM, Sipos RS, Fechete R. Callus formation in albino Wistar rats after femur fracture assessed by visible spectroscopy. Biochem Biophys Res Commun 2022; 634:168-174. [DOI: 10.1016/j.bbrc.2022.09.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 09/26/2022] [Accepted: 09/29/2022] [Indexed: 11/02/2022]
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Mazurenko E, Rymar O, Rerikh V, Khrapova Y, Direev A, Shcherbakova L, Malyutina S. Risk Factors for Chronic Non-Communicable Diseases and Osteoporotic Fractures in a Middle and Elderly-Aged Population. J Pers Med 2022; 12:jpm12091475. [PMID: 36143260 PMCID: PMC9503074 DOI: 10.3390/jpm12091475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/01/2022] [Accepted: 09/07/2022] [Indexed: 11/16/2022] Open
Abstract
Aim. To study the associations of risk factors for chronic non-communicable diseases (CNCDs) and osteoporotic fractures (OFs) in a population sampling over 50 years. Materials and Methods. The data of a cross-sectional population-based study obtained in the Russian part of the international project HAPIEE (Novosibirsk) are analyzed. The present analysis comprised 7363 men and women aged 50–69 years old. We have assessed the frequency of OFs for the last 12 months and risk factors of CNCDs. Cross-sectional associations between OF history and potential determinants were analyzed using multivariable-adjusted logistic regression. Results. The frequency of OFs in the last 12 months was 3.6% (3.2% in men and 4.0% in women, p = 0.074). In men, the probability of OFs increased with an elevation of blood pressure (BP), high-density lipoprotein cholesterol (HDL-C), ethanol consumption, and reduced with increased body mass index (BMI). In women, the probability of a fracture increased with current smoking and an increased duration of post-menopause and reduced with an increase in triglycerides (TG) levels, independently of other factors. Conclusions. A syndemia of risk factors, both generally recognized for OFs (BMI, tobacco smoking, alcohol consumption, postmenopausal duration) and new factors associated with CNCDs (BP, HDL, TG), have been defined.
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Affiliation(s)
- Elena Mazurenko
- Research Institute of Internal and Preventive Medicine—Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630089 Novosibirsk, Russia
- Novosibirsk Research Institute of Traumatology and Orthopedics Named after Ya. L. Tsivyan, 630112 Novosibirsk, Russia
- Correspondence: ; Tel.: +7-(952)-945–72-11
| | - Oksana Rymar
- Research Institute of Internal and Preventive Medicine—Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630089 Novosibirsk, Russia
| | - Victor Rerikh
- Novosibirsk Research Institute of Traumatology and Orthopedics Named after Ya. L. Tsivyan, 630112 Novosibirsk, Russia
| | - Yuliya Khrapova
- Novosibirsk Research Institute of Traumatology and Orthopedics Named after Ya. L. Tsivyan, 630112 Novosibirsk, Russia
| | - Artem Direev
- Research Institute of Internal and Preventive Medicine—Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630089 Novosibirsk, Russia
| | - Liliya Shcherbakova
- Research Institute of Internal and Preventive Medicine—Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630089 Novosibirsk, Russia
| | - Sofia Malyutina
- Research Institute of Internal and Preventive Medicine—Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630089 Novosibirsk, Russia
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Barzilay JI, Buzkova P, Kuller LH, Cauley JA, Fink HA, Sheets K, Robbins JA, Carbone LD, Elam RE, Mukamal KJ. The Association of Lipids and Lipoproteins with Hip Fracture Risk: The Cardiovascular Health Study. Am J Med 2022; 135:1101-1108.e1. [PMID: 35679877 PMCID: PMC9536862 DOI: 10.1016/j.amjmed.2022.05.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 05/16/2022] [Accepted: 05/17/2022] [Indexed: 11/01/2022]
Abstract
BACKGROUND It is uncertain if lipids or lipoproteins are associated with osteoporotic fractures. In this study, incident hip fracture risk according to conventional lipid levels and lipoprotein levels and sizes was examined. METHODS We followed 5832 participants aged ≥65 years from the Cardiovascular Health Study for hip fracture for a mean of 13.5 (SD 5.7) years. Standard enzymatic methods were used to determine lipid levels (ie, high-density lipoprotein-cholesterol [HDL-c], low-density lipoprotein-cholesterol [LDL-c], and triglycerides). Nuclear magnetic resonance spectroscopy was used to measure lipoprotein fractions (ie, very-low-density lipoprotein-particle [VLDL-P], low-density lipoprotein-particle [LDL-P], high-density lipoprotein-particle [HDL-P]) in a subset of 1849 participants. RESULTS We documented 755 incident hip fractures among women (1.19 fractures per 100 participant years [95% confidence interval, 1.04, 1.35]) and 197 among men (0.67 fractures per 100 participant years [95% CI, 0.41, 1.10]) over an average follow-up. HDL-c and LDL-c levels had statistically significant nonlinear U-shaped relationships with hip fracture risk (HDL-c, P = .009; LDL-c, P = .02). Triglyceride levels were not significantly associated with hip fracture risk. In fully adjusted conjoint models, higher VLDL-P concentration (hazard ratio [HR] per 1 standard deviation [SD] increment 1.47 [1.13, 1.91] and size [HR per 1 SD increment 1.24 [1.05, 1.46]) and higher high-density lipoprotein particle size (HR per 1 SD increment 1.81 [1.25, 2.62]) were all associated with higher hip fracture risk. CONCLUSIONS Lipids and lipoproteins are associated with hip fracture risk in older adults. The associations are complex. Mechanistic studies are needed to understand these findings.
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Affiliation(s)
- Joshua I Barzilay
- Division of Endocrinology, Kaiser Permanente of Georgia, and Department of Endocrinology, Emory University School of Medicine, Atlanta, Ga.
| | - Petra Buzkova
- Department of Biostatistics, School of Public Health, University of Washington, Seattle
| | - Lewis H Kuller
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Penn
| | - Jane A Cauley
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Penn
| | - Howard A Fink
- Geriatric Research Education and Clinical Center, VA Health Care System, Minneapolis, Minn; Department of Medicine, University of Minnesota, Minneapolis
| | - Kerry Sheets
- Division of Geriatrics and Palliative Care, Hennepin Healthcare, Department of Medicine, University of Minnesota, Minneapolis
| | - John A Robbins
- Department of Medicine, University of California, Davis, Sacramento
| | - Laura D Carbone
- Division of Rheumatology, Medical College of Georgia at Augusta University, Augusta Ga
| | - Rachel E Elam
- Division of Rheumatology, Medical College of Georgia at Augusta University, Augusta Ga
| | - Kenneth J Mukamal
- Department of Medicine, Beth Israel Deaconess Medical Center, Brookline, Mass
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15
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Osorio EY, Gugala Z, Patterson GT, Palacios G, Cordova E, Uscanga-Palomeque A, Travi BL, Melby PC. Inflammatory stimuli alter bone marrow composition and compromise bone health in the malnourished host. Front Immunol 2022; 13:846246. [PMID: 35983045 PMCID: PMC9380851 DOI: 10.3389/fimmu.2022.846246] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 07/13/2022] [Indexed: 11/13/2022] Open
Abstract
Inflammation has a role in the pathogenesis of childhood malnutrition. We investigated the effect of malnutrition and inflammatory challenge on bone marrow composition and bone health. We studied an established murine model of moderate acute malnutrition at baseline and after acute inflammatory challenge with bacterial lipopolysaccharide (LPS), a surrogate of Gram-negative bacterial sepsis, or Leishmania donovani, the cause of visceral leishmaniasis. Both of these infections cause significant morbidity and mortality in malnourished children. Of the 2 stimuli, LPS caused more pronounced bone marrow changes that were amplified in malnourished mice. LPS challenge led to increased inflammatory cytokine expression (Il1b, Il6, and Tnf), inflammasome activation, and inflammatory monocyte accumulation in the bone marrow of malnourished mice. Depletion of inflammatory monocytes in Csfr1-LysMcre-DT malnourished mice significantly reduced the inflammasome activation and IL1-ß production after LPS challenge. The inflammatory challenge also led to increased expansion of mesenchymal stem cells (MSCs), bone marrow adiposity, and expression of genes (Pparg, Adipoq, and Srbp1) associated with adipogenesis in malnourished mice. This suggests that inflammatory challenge promotes differentiation of BM MSCs toward the adipocyte lineage rather than toward bone-forming osteoblasts in the malnourished host. Concurrent with this reduced osteoblastic potential there was an increase in bone-resorbing osteoclasts, enhanced osteoclast activity, upregulation of inflammatory genes, and IL-1B involved in osteoclast differentiation and activation. The resulting weakened bone formation and increased bone resorption would contribute to the bone fragility associated with malnutrition. Lastly, we evaluated the effect of replacing lipid rich in omega-6 fatty acids (corn oil) with lipid-rich in omega-3 fatty acids (fish oil) in the nutrient-deficient diet. LPS-challenged malnourished mice that received dietary fish oil showed decreased expression of inflammatory cytokines and Rankl and reduced osteoclast differentiation and activation in the bone marrow. This work demonstrates that the negative effect of inflammatory challenge on bone marrow is amplified in the malnourished host. Increasing dietary intake of omega-3 fatty acids may be a means to reduce inflammation and improve bone health in malnourished children.
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Affiliation(s)
- E. Yaneth Osorio
- Department of Internal Medicine, Division of Infectious Diseases, University of Texas Medical Branch, Galveston, TX, United States
- *Correspondence: Peter C. Melby, ; E. Yaneth Osorio,
| | - Zbigniew Gugala
- Department of Orthopedic Surgery and Rehabilitation, The University of Texas Medical Branch, Galveston, TX, United States
| | - Grace T. Patterson
- Department of Internal Medicine, Division of Infectious Diseases, University of Texas Medical Branch, Galveston, TX, United States
| | - Genesis Palacios
- Department of Parasitology, Universidad de la Laguna, San Cristóbal de La Laguna, Spain
| | - Erika Cordova
- Department of Internal Medicine, Division of Infectious Diseases, University of Texas Medical Branch, Galveston, TX, United States
| | - Ashanti Uscanga-Palomeque
- Department of Internal Medicine, Division of Infectious Diseases, University of Texas Medical Branch, Galveston, TX, United States
| | - Bruno L. Travi
- Department of Internal Medicine, Division of Infectious Diseases, University of Texas Medical Branch, Galveston, TX, United States
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, United States
- Center for Tropical Diseases and Institute for Human Infection and Immunity, University of Texas Medical Branch, Galveston, TX, United States
| | - Peter C. Melby
- Department of Internal Medicine, Division of Infectious Diseases, University of Texas Medical Branch, Galveston, TX, United States
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, United States
- Center for Tropical Diseases and Institute for Human Infection and Immunity, University of Texas Medical Branch, Galveston, TX, United States
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, United States
- *Correspondence: Peter C. Melby, ; E. Yaneth Osorio,
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16
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Anagnostis P, Florentin M, Livadas S, Lambrinoudaki I, Goulis DG. Bone Health in Patients with Dyslipidemias: An Underestimated Aspect. Int J Mol Sci 2022; 23:ijms23031639. [PMID: 35163560 PMCID: PMC8835770 DOI: 10.3390/ijms23031639] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 01/28/2022] [Accepted: 01/28/2022] [Indexed: 02/04/2023] Open
Abstract
Beyond being aging-related diseases, atherosclerosis and osteoporosis share common pathogenetic pathways implicated in bone and vascular mineralization. However, the contributory role of dyslipidemia in this interplay is less documented. The purpose of this narrative review is to provide epidemiological evidence regarding the prevalence of bone disease (osteoporosis, fracture risk) in patients with dyslipidemias and to discuss potential common pathophysiological mechanisms linking osteoporosis and atherosclerosis. The effect of hypolipidemic therapy on bone metabolism is also discussed. Despite the high data heterogeneity and the variable quality of studies, dyslipidemia, mainly elevated total and low-density lipoprotein cholesterol concentrations, is associated with low bone mass and increased fracture risk. This effect may be mediated directly by the increased oxidative stress and systemic inflammation associated with dyslipidemia, leading to increased osteoclastic activity and reduced bone formation. Moreover, factors such as estrogen, vitamin D and K deficiency, and increased concentrations of parathyroid hormone, homocysteine and lipid oxidation products, can also contribute. Regarding the effect of hypolipidemic medications on bone metabolism, statins may slightly increase BMD and reduce fracture risk, although the evidence is not robust, as it is for omega-3 fatty acids. No evidence exists for the effects of ezetimibe, fibrates, and niacin. In any case, more prospective studies are needed further to elucidate the association between lipids and bone strength.
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Affiliation(s)
- Panagiotis Anagnostis
- Unit of Reproductive Endocrinology, 1st Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, 56429 Thessaloniki, Greece;
- Correspondence: ; Tel.: +30-2310-257150; Fax: +30-2310-281179
| | - Matilda Florentin
- Department of Internal Medicine, University Hospital of Ioannina, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece;
| | | | - Irene Lambrinoudaki
- 2nd Department of Obstetrics and Gynecology, Medical School, National and Kapodistrian University of Athens, 11528 Athens, Greece;
| | - Dimitrios G. Goulis
- Unit of Reproductive Endocrinology, 1st Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, 56429 Thessaloniki, Greece;
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Varying Synthesis Conditions and Comprehensive Characterization of Fluorine-Doped Hydroxyapatite Nanocrystals in a Simulated Body Fluid. CRYSTALS 2022. [DOI: 10.3390/cryst12020139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Bone supports animal bodies, is the place where blood is produced, and is essential for the immune system, among other important functions. The dominant inorganic component in bone is hydroxyapatite (Hap), the structure and dynamics of which still pose many unsolved puzzles. An updated understanding of HAp is of great significance to osteology, dentistry, and the development of artificial bone and other biomaterials. In this work, HAp nanoparticles were synthesized with the wet chemical precipitation method and their structure and morphologies were controlled by varying pH and adding fluoride ions by two different routes: (1) fluoride ions were added during synthesis, and (2) fluoride ions were introduced after the samples were synthesized by soaking the samples in solutions with fluoride ions. XRD and HRTEM were employed to confirm the composition and structure, while various multinuclear (1H, 19F, 31P) solid-state nuclear magnetic resonance (NMR) methods including 1D single pulse, cross-polarization under magic-angle spinning (CPMAS), and 2D heteronuclear correlation (HETCOR) were used to characterize the structure, morphology, and dynamics, validating the general core-shell morphology in these F-HAp samples. It was found that all hydroxide ions were substituted when the fluoride ion concentration was above 0.005 M. An NMR peak corresponding to water structure emerged and the bulk water peak was shifted upfield, indicating that fluoride substitution modifies both the crystalline core and the amorphous shell of F-HAp nanoparticles. With the second route of fluoride substitution, increases in soaking time or fluoride ion concentration could increase fluoride substitution in HAp, but could not achieve complete substitution. Finally, with 1H-31P CPMAS and HETCOR, it was established that there are two types of phosphorous, one in the crystalline core (PO43−) and the other in the amorphous shell (HPO42−). These results are valuable for clarifying the fluoride substitution mechanism in HAp in biomaterials or in organisms, and provide insights for developing next generation replacement materials for bone, tooth, or coating films, drug delivery systems, etc.
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18
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Gao S, Song W, Lin T, Chen W, He W, Wei Q, Li Z. Prolonged Use of Proton Pump Inhibitors, but Not Histamine-2 Receptor Antagonists, Is Associated With Lower Bone Mineral Density in Males Aged Over 70. Front Med (Lausanne) 2021; 8:725359. [PMID: 34497815 PMCID: PMC8420967 DOI: 10.3389/fmed.2021.725359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 07/23/2021] [Indexed: 11/13/2022] Open
Abstract
Aims: The association of acid suppressants use with bone mineral density (BMD) is still unclear, especially in older adult with prolonged use of proton pump inhibitors (PPIs) or histamine-2 receptor antagonists (H2RAs). In this study, our aim was to investigate the association between PPI or H2RA use and BMD in general US older adults. Methods: We conducted a cross-sectional study on a sample from National Health and Nutrition Examination Survey. Association between long-term use of PPIs or H2RAs and lumber spine BMD in elderly was evaluated using weighted multivariate linear regression models. Sensitive and subgroup analysis were also performed in this study. Results: Long-term PPI use is correlated with lower lumber spine BMD in our multivariable regression model after adjusting for known confounding factors. Further analysis showed PPI use with a duration over 1 year was negatively associated with lumber spine BMD in male, elderly aged over 70 years, and white elderly. There is no significant association between long-term H2RA use and lumber spine BMD. Conclusions: Our results indicated that the association between long-term use of PPI and lumber spine BMD differed by gender. Long term use of PPIs would reduce lumber spine BMD in older men, while H2RA use is not significantly linked with lumber spine BMD. Patients that are at high risk of bone loss should shortened the duration of PPI use (<1 year) or use H2RAs as alternative if possible.
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Affiliation(s)
- Shihua Gao
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wenting Song
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Tianye Lin
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wenhuan Chen
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wei He
- Department of Orthopaedics, The Third Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qiushi Wei
- Department of Orthopaedics, The Third Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ziqi Li
- Department of Orthopaedics, The Third Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
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19
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Lim PJ, Marfurt S, Lindert U, Opitz L, Ndarugendamwo T, Srikanthan P, Poms M, Hersberger M, Langhans CD, Haas D, Rohrbach M, Giunta C. Omics Profiling of S2P Mutant Fibroblasts as a Mean to Unravel the Pathomechanism and Molecular Signatures of X-Linked MBTPS2 Osteogenesis Imperfecta. Front Genet 2021; 12:662751. [PMID: 34093655 PMCID: PMC8176293 DOI: 10.3389/fgene.2021.662751] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 04/26/2021] [Indexed: 12/03/2022] Open
Abstract
Osteogenesis imperfecta (OI) is an inherited skeletal dysplasia characterized by low bone density, bone fragility and recurrent fractures. The characterization of its heterogeneous genetic basis has allowed the identification of novel players in bone development. In 2016, we described the first X-linked recessive form of OI caused by hemizygous MBTPS2 missense variants resulting in moderate to severe phenotypes. MBTPS2 encodes site-2 protease (S2P), which activates transcription factors involved in bone (OASIS) and cartilage development (BBF2H7), ER stress response (ATF6) and lipid metabolism (SREBP) via regulated intramembrane proteolysis. In times of ER stress or sterol deficiency, the aforementioned transcription factors are sequentially cleaved by site-1 protease (S1P) and S2P. Their N-terminal fragments shuttle to the nucleus to activate gene transcription. Intriguingly, missense mutations at other positions of MBTPS2 cause the dermatological spectrum condition Ichthyosis Follicularis, Atrichia and Photophobia (IFAP) and Keratosis Follicularis Spinulosa Decalvans (KFSD) without clinical overlap with OI despite the proximity of some of the pathogenic variants. To understand how single amino acid substitutions in S2P can lead to non-overlapping phenotypes, we aimed to compare the molecular features of MBTPS2-OI and MBTPS2-IFAP/KFSD, with the ultimate goal to unravel the pathomechanisms underlying MBTPS2-OI. RNA-sequencing-based transcriptome profiling of primary skin fibroblasts from healthy controls (n = 4), MBTPS2-OI (n = 3), and MBTPS2-IFAP/KFSD (n = 2) patients was performed to identify genes that are differentially expressed in MBTPS2-OI and MBTPS2-IFAP/KFSD individuals compared to controls. We observed that SREBP-dependent genes are more downregulated in OI than in IFAP/KFSD. This is coupled to alterations in the relative abundance of fatty acids in MBTPS2-OI fibroblasts in vitro, while no consistent alterations in the sterol profile were observed. Few OASIS-dependent genes are suppressed in MBTPS2-OI, while BBF2H7- and ATF6-dependent genes are comparable between OI and IFAP/KFSD patients and control fibroblasts. Importantly, we identified genes involved in cartilage physiology that are differentially expressed in MBTPS2-OI but not in MBTPS2-IFAP/KFSD fibroblasts. In conclusion, our data provide clues to how pathogenic MBTPS2 mutations cause skeletal deformities via altered fatty acid metabolism or cartilage development that may affect bone development, mineralization and endochondral ossification.
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Affiliation(s)
- Pei Jin Lim
- Connective Tissue Unit, Division of Metabolism and Children's Research Centre, University Children's Hospital, Zurich, Switzerland.,University of Zürich, Zurich, Switzerland
| | - Severin Marfurt
- Connective Tissue Unit, Division of Metabolism and Children's Research Centre, University Children's Hospital, Zurich, Switzerland.,University of Zürich, Zurich, Switzerland
| | - Uschi Lindert
- Connective Tissue Unit, Division of Metabolism and Children's Research Centre, University Children's Hospital, Zurich, Switzerland.,University of Zürich, Zurich, Switzerland
| | - Lennart Opitz
- Functional Genomics Center Zurich, University of Zurich/ETH Zurich, Zurich, Switzerland
| | - Timothée Ndarugendamwo
- Connective Tissue Unit, Division of Metabolism and Children's Research Centre, University Children's Hospital, Zurich, Switzerland.,University of Zürich, Zurich, Switzerland
| | - Pakeerathan Srikanthan
- University of Zürich, Zurich, Switzerland.,Division of Clinical Chemistry and Biochemistry, University Children's Hospital Zurich, Zurich, Switzerland
| | - Martin Poms
- University of Zürich, Zurich, Switzerland.,Division of Clinical Chemistry and Biochemistry, University Children's Hospital Zurich, Zurich, Switzerland
| | - Martin Hersberger
- University of Zürich, Zurich, Switzerland.,Division of Clinical Chemistry and Biochemistry, University Children's Hospital Zurich, Zurich, Switzerland
| | - Claus-Dieter Langhans
- Department of Pediatrics, Centre for Pediatric and Adolescent Medicine, Division of Neuropediatrics and Metabolic Medicine, University Hospital, Heidelberg, Germany
| | - Dorothea Haas
- Department of Pediatrics, Centre for Pediatric and Adolescent Medicine, Division of Neuropediatrics and Metabolic Medicine, University Hospital, Heidelberg, Germany
| | - Marianne Rohrbach
- Connective Tissue Unit, Division of Metabolism and Children's Research Centre, University Children's Hospital, Zurich, Switzerland.,University of Zürich, Zurich, Switzerland
| | - Cecilia Giunta
- Connective Tissue Unit, Division of Metabolism and Children's Research Centre, University Children's Hospital, Zurich, Switzerland.,University of Zürich, Zurich, Switzerland
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20
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Wang H, Falcoz S, Berteau JP. Long-Chain Fatty Acids in Bones and Their Link to Submicroscopic Vascularization Network: NMR Assignment and Relaxation Studies under Magic Angle Spinning Conditions in Intramuscular Bones of Atlantic Herring Fish. J Phys Chem B 2021; 125:4585-4595. [PMID: 33914538 DOI: 10.1021/acs.jpcb.1c00186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The long-lasting proton signals in bones are identified as long-chain fatty acids, including saturated, mono-, and di-unsaturated fatty acids, with direct nuclear magnetic resonance evidence. We used intramuscular bones from Atlantic Herring fish to avoid interference from lipid-rich marrows. The key is to recognize that these signals are from mobile phase materials and study them with J-coupled correlation spectroscopies under magic angle spinning conditions. We kept extensive 1H-spin-echo records that allowed us to examine the effect of magic angle spinning on the transverse relaxation time of water and lipids over time. While it is impossible to distinguish based on chemical shifts, the relaxation data suggest that the signals are more consistent with the interpretation of phospholipid membranes than triglycerides in lipid droplets. In particular, the simultaneous T2 changes in water and lipids suggest that the centrifugal impact of magic angle spinning alters the lipid's structure in very tight spaces. Additional evidence of phospholipid membranes came from the choline-γ resonance at 3.2 ppm in fresh samples, which disappears with magic angle spinning. Thus, the fatty acid signals are at least partially from membrane bilayer structures, and we propose that they are linked to the submicroscopic vascularization channels similar to the dense canaliculi network in mammalian bones. Our detection of phospholipids from bones depended critically on two factors: (1) the elimination of the overwhelming triglyceride signals from marrows and (2) the preservation of water that biomembranes require. The relaxation data reveal aspects of lipid fluidity that have not been elucidated by previous order parameter studies on model membranes. Relaxation times have long been considered difficult to interpret. A robust and renewed understanding may be beneficial.
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Affiliation(s)
- Hsin Wang
- Department of Chemistry and Biochemistry, The City College of New York and CUNY Institute for Macromolecular Assemblies, 85 St. Nicholas Terrace, New York, New York 10031, United States
| | - Steve Falcoz
- Department of Physical Therapy, The College of Staten Island, 2800 Victory Blvd, Staten Island, New York 10314, United States
| | - Jean-Philippe Berteau
- Department of Physical Therapy, The College of Staten Island, 2800 Victory Blvd, Staten Island, New York 10314, United States.,New York Centre for Biomedical Engineering, City University of New York - City College of New York, New York, New York 10031, United States.,Nanosciences Initiative, City University of New York - Advance Science Research Center, New York, New York 10031, United States
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21
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de Souza FB, Novaes RD, Santos CFF, de Deus FA, Santos FC, Ladeira LCM, Gonçalves RV, Bastos DSS, Souza ACF, Machado-Neves M, Dos Santos EC. High-fat diet and caffeine interact to modulate bone microstructure and biomechanics in mice. Life Sci 2021; 276:119450. [PMID: 33798548 DOI: 10.1016/j.lfs.2021.119450] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 03/25/2021] [Accepted: 03/27/2021] [Indexed: 10/21/2022]
Abstract
AIMS Although excessive fat and caffeine intake are independent risk factors for bone microstructural and functional disturbances, their association remains overlooked. Thus, we investigated the impact of high-fat diet (HFD) and caffeine alone and combined on serum lipid profile, bone microstructure, micromineral distribution and biomechanical properties. METHODS Forty female C57BL/6 mice were randomized into 4 groups daily treated for seventeen weeks with standard diet (SD) or HFD (cafeteria diet) alone or combined with 50 mg/kg caffeine. KEY FINDINGS The association between HFD and caffeine reduced the weight gain compared to animals receiving HFD alone. Caffeine alone or combined with HFD increases total and HDL cholesterol circulating levels. HFD also reduced calcium, phosphorus and magnesium bone levels compared to the groups receiving SD, and this reduction was aggravated by caffeine coadministration. From biomechanical assays, HFD combined with caffeine increased bending strength and stiffness of tibia, a finding aligned with the marked microstructural remodeling of the cortical and cancellous bone in animals receiving this combination. SIGNIFICANCE Our findings indicated that HFD and caffeine interact to induce metabolic changes and bone microstructural remodeling, which are potentially related to bone biomechanical adaptations in response to HFD and caffeine coadministration.
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Affiliation(s)
- Fernanda Batista de Souza
- Postgraduate Program in Rehabilitation and Functional Performance, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, Minas Gerais, Brazil
| | - Rômulo Dias Novaes
- Institute of Biomedical Sciences, Department of Structural Biology, Federal University of Alfenas, Minas Gerais, Brazil
| | | | - Franciele Angelo de Deus
- Department of Physiotherapy, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, Minas Gerais, Brazil
| | - Felipe Couto Santos
- Department of General Biology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | | | | | | | - Ana Cláudia Ferreira Souza
- Department of Animal Biology, Federal Rural University of Rio de Janeiro, Seropédica, Rio de Janeiro, Brazil
| | - Mariana Machado-Neves
- Department of General Biology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | - Eliziária Cardoso Dos Santos
- Postgraduate Program in Rehabilitation and Functional Performance, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, Minas Gerais, Brazil; School of Medicine, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, Minas Gerais, Brazil.
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22
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Palmieri M, Kim HN, Gomez-Acevedo H, Que X, Tsimikas S, Jilka RL, Manolagas SC, Witztum JL, Ambrogini E. A Neutralizing Antibody Targeting Oxidized Phospholipids Promotes Bone Anabolism in Chow-Fed Young Adult Mice. J Bone Miner Res 2021; 36:170-185. [PMID: 32990984 PMCID: PMC7855899 DOI: 10.1002/jbmr.4173] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 08/14/2020] [Accepted: 08/23/2020] [Indexed: 12/16/2022]
Abstract
Oxidized phospholipids containing phosphocholine (OxPL) are pro-inflammatory lipid peroxidation products that bind to scavenger receptors (SRs), such as Scarb1, and toll-like receptors (TLRs). Excessive OxPL, as found in oxidized low-density lipoprotein (OxLDL), overwhelm these defense mechanisms and become pathogenic in atherosclerosis, nonalcoholic steatohepatitis (NASH), and osteoporosis. We previously reported that the innate IgM natural antibody E06 binds to OxPL and neutralizes their deleterious effects; expression of the single-chain (scFv) form of the antigen-binding domain of E06 (E06-scFv) as a transgene increases trabecular bone in male mice. We show herein that E06-scFv increases trabecular and cortical bone in female and male mice by increasing bone formation and decreasing osteoblast apoptosis in vivo. Homozygous E06-scFv mice have higher bone mass than hemizygous, showing a dose effect of the transgene. To investigate how OxPL restrain bone formation under physiologic conditions, we measured the levels of SRs and TLRs that bind OxPL. We found that osteoblastic cells primarily express Scarb1. Moreover, OxLDL-induced apoptosis and reduced differentiation were prevented in bone marrow-derived or calvaria-derived osteoblasts from Scarb1 knockout mice. Because Scarb1-deficient mice are reported to have high bone mass, our results suggest that E06 may promote bone anabolism in healthy young mice, at least in part, by neutralizing OxPL, which in turn promote Scarb1-mediated apoptosis of osteoblasts or osteoblast precursors. © 2020 The Authors. Journal of Bone and Mineral Research published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research (ASBMR)..
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Affiliation(s)
- Michela Palmieri
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases and Center for Musculoskeletal Disease Research, University of Arkansas for Medical Sciences and Central Arkansas Veterans Healthcare System, Little Rock, AR, USA
| | - Ha-Neui Kim
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases and Center for Musculoskeletal Disease Research, University of Arkansas for Medical Sciences and Central Arkansas Veterans Healthcare System, Little Rock, AR, USA
| | - Horacio Gomez-Acevedo
- Department of Biomedical Informatics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Xuchu Que
- Division of Endocrinology and Metabolism, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Sotirios Tsimikas
- Division of Cardiology, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Robert L Jilka
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases and Center for Musculoskeletal Disease Research, University of Arkansas for Medical Sciences and Central Arkansas Veterans Healthcare System, Little Rock, AR, USA
| | - Stavros C Manolagas
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases and Center for Musculoskeletal Disease Research, University of Arkansas for Medical Sciences and Central Arkansas Veterans Healthcare System, Little Rock, AR, USA
| | - Joseph L Witztum
- Division of Endocrinology and Metabolism, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Elena Ambrogini
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases and Center for Musculoskeletal Disease Research, University of Arkansas for Medical Sciences and Central Arkansas Veterans Healthcare System, Little Rock, AR, USA
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23
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Yang L, Hu X, Wu W, Pan W, Chen S, Lin X, Gu X. The inverse association between parity and bone health is independent of lifestyle in postmenopausal Chinese women. Endocr J 2020; 67:1039-1045. [PMID: 32536674 DOI: 10.1507/endocrj.ej20-0132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
This study aimed to investigate the association between parity and bone mineral density in postmenopausal Chinese women, as well as the interference of physical activity and sedentary time on this association. A total of 1,712 participants were enrolled in this study. Participants were separated into three groups according to the number of parities: group 1, 1-2; group 2, 3-4; group 3, ≥5. Physical activity level was assessed according to the International Physical Activity Questionnaire. Calcaneus bone mineral density (BMD) and bone quality were assessed by qualitative ultrasound. As a result, logistic regression showed that compared to that in group 1, the risk of fracture in group 3 was increased significantly (p < 0.001). A greater number of parities was associated with a lower BMD, broadband ultrasonic attenuation (BUA), quantitative ultrasound index (QUI), speed of sound (SOS), and T-score among the three groups after adjustment for age (All p for trend < 0.05). The number of parities was an independent factor negatively correlated with BMD, BUA, QUI, SOS and T-score (All p < 0.05). BMD, BUA, QUI, SOS, and T-score were significantly increased in the physically a participants independent of parity (all p < 0.05), and decreased in the sedentary participants independent of parity (p < 0.05, except BUA). A great number of parities was negatively associated with bone health. Physical activity was positively correlated and sedentary time was negatively correlated with bone health independent of parity.
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Affiliation(s)
- Lijuan Yang
- Department of Endocrine and Metabolic Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Xiang Hu
- Department of Endocrine and Metabolic Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Wenjun Wu
- Department of Endocrine and Metabolic Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Wei Pan
- Department of Endocrine and Metabolic Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Suoping Chen
- Department of Endocrine and Metabolic Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Xiuli Lin
- Department of Endocrine and Metabolic Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Xuejiang Gu
- Department of Endocrine and Metabolic Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
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24
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Wysokowski M, Zaslansky P, Ehrlich H. Macrobiomineralogy: Insights and Enigmas in Giant Whale Bones and Perspectives for Bioinspired Materials Science. ACS Biomater Sci Eng 2020; 6:5357-5367. [PMID: 33320547 DOI: 10.1021/acsbiomaterials.0c00364] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The giant bones of whales (Cetacea) are the largest extant biomineral-based constructs known. The fact that such mammalian bones can grow up to 7 m long raises questions about differences and similarities to other smaller bones. Size and exposure to environmental stress are good reasons to suppose that an unexplored level of hierarchical organization may be present that is not needed in smaller bones. The existence of such a macroscopic naturally grown structure with poorly described mechanisms for biomineralization is an example of the many yet unexplored phenomena in living organisms. In this article, we describe key observations in macrobiomineralization and suggest that the large scale of biomineralization taking place in selected whale bones implies they may teach us fundamental principles of the chemistry, biology, and biomaterials science governing bone formation, from atomistic to the macrolevel. They are also associated with a very lipid rich environment on those bones. This has implications for bone development and damage sensing that has not yet been fully addressed. We propose that whale bone construction poses extreme requirements for inorganic material storage, mediated by biomacromolecules. Unlike extinct large mammals, cetaceans still live deep in large terrestrial water bodies following eons of adaptation. The nanocomposites from which the bones are made, comprising biomacromolecules and apatite nanocrystals, must therefore be well adapted to create the macroporous hierarchically structured architectures of the bones, with mechanical properties that match the loads imposed in vivo. This massive skeleton directly contributes to the survival of these largest mammals in the aquatic environments of Earth, with structural refinements being the result of 60 million years of evolution. We also believe that the concepts presented in this article highlight the beneficial uses of multidisciplinary and multiscale approaches to study the structural peculiarities of both organic and inorganic phases as well as mechanisms of biomineralization in highly specialized and evolutionarily conserved hard tissues.
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Affiliation(s)
- Marcin Wysokowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, Poznan 60965, Poland.,Institute of Electronics and Sensor Materials, TU Bergakademie Freiberg, Gustav-Zeuner Strasse 3, Freiberg 09599, Germany
| | - Paul Zaslansky
- Department for Restorative and Preventive Dentistry, Charité-Universitätsmedizin Berlin, Berlin 10117, Germany
| | - Hermann Ehrlich
- Institute of Electronics and Sensor Materials, TU Bergakademie Freiberg, Gustav-Zeuner Strasse 3, Freiberg 09599, Germany
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25
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Tiwari N, Rai R, Sinha N. Water-lipid interactions in native bone by high-resolution solid-state NMR spectroscopy. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2020; 107:101666. [PMID: 32371298 DOI: 10.1016/j.ssnmr.2020.101666] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 04/14/2020] [Accepted: 04/14/2020] [Indexed: 06/11/2023]
Abstract
The study of structural and dynamical properties of lipid and its associated interaction with different components of bone is essential to understand its role at a different level of bone homeostasis such as bone mineralization and bone metabolism. In this article, we present water-dependent dynamical changes observed in lipids (triglycerides) in its absolute native environment inside bone by high-resolution 1H solid-state nuclear magnetic resonance spectroscopy (ssNMR). Relaxation measurement (T2 measurement) ssNMR experiments were performed at different levels of water network induced by dehydration and H/D exchange in native bone. Our measurements reflect the changes in the local environment and dynamical properties of triglyceride due to different hydration levels. The present study explains the role of water in stabilizing the structural properties of triglycerides in bone hence will help understand its pathological role associated with bone physiology and bone disorders.
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Affiliation(s)
- Nidhi Tiwari
- Centre of Biomedical Research, SGPGIMS Campus, Raebarelly Road, Lucknow, 226014, India; Department of Chemistry, Institute of Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - RamaNand Rai
- Department of Chemistry, Institute of Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Neeraj Sinha
- Centre of Biomedical Research, SGPGIMS Campus, Raebarelly Road, Lucknow, 226014, India.
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26
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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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27
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Perturbations of Lipids and Oxidized Phospholipids in Lipoproteins of Patients with Postmenopausal Osteoporosis Evaluated by Asymmetrical Flow Field-Flow Fractionation and Nanoflow UHPLC-ESI-MS/MS. Antioxidants (Basel) 2020; 9:antiox9010046. [PMID: 31948114 PMCID: PMC7022717 DOI: 10.3390/antiox9010046] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 12/31/2019] [Accepted: 01/03/2020] [Indexed: 12/22/2022] Open
Abstract
Osteoporosis, a degenerative bone disease characterized by reduced bone mass and high risk of fragility, is associated with the alteration of circulating lipids, especially oxidized phospholipids (Ox-PLs). This study evaluated the lipidomic changes in lipoproteins of patients with postmenopausal osteoporosis (PMOp) vs. postmenopausal healthy controls. High-density lipoproteins (HDL) and low-density lipoproteins (LDL) from plasma samples were size-sorted by asymmetrical flow field-flow fractionation (AF4). Lipids from each lipoprotein were analyzed by nanoflow ultrahigh performance liquid chromatography-electrospray ionization-tandem mass spectrometry (nUHPLC-ESI-MS/MS). A significant difference was observed in a subset of lipids, most of which were increased in patients with PMOp, when compared to control. Phosphatidylethanolamine plasmalogen, which plays an antioxidative role, was increased in both lipoproteins (P-16:0/20:4, P-18:0/20:4, and P-18:1/20:4) lysophosphatidic acid 16:0, and six phosphatidylcholines were largely increased in HDL, but triacylglycerols (50:4 and 54:6) and overall ceramide levels were significantly increased only in LDL of patients with PMOp. Further investigation of 33 Ox-PLs showed significant lipid oxidation in PLs with highly unsaturated acyl chains, which were decreased in LDL of patients with PMOp. The present study demonstrated that AF4 with nUHPLC-ESI-MS/MS can be utilized to systematically profile Ox-PLs in the LDL of patients with PMOp.
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28
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Alekos NS, Moorer MC, Riddle RC. Dual Effects of Lipid Metabolism on Osteoblast Function. Front Endocrinol (Lausanne) 2020; 11:578194. [PMID: 33071983 PMCID: PMC7538543 DOI: 10.3389/fendo.2020.578194] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 08/25/2020] [Indexed: 12/14/2022] Open
Abstract
The skeleton is a dynamic and metabolically active organ with the capacity to influence whole body metabolism. This newly recognized function has propagated interest in the connection between bone health and metabolic dysfunction. Osteoblasts, the specialized mesenchymal cells responsible for the production of bone matrix and mineralization, rely on multiple fuel sources. The utilization of glucose by osteoblasts has long been a focus of research, however, lipids and their derivatives, are increasingly recognized as a vital energy source. Osteoblasts possess the necessary receptors and catabolic enzymes for internalization and utilization of circulating lipids. Disruption of these processes can impair osteoblast function, resulting in skeletal deficits while simultaneously altering whole body lipid homeostasis. This article provides an overview of the metabolism of postprandial and stored lipids and the osteoblast's ability to acquire and utilize these molecules. We focus on the requirement for fatty acid oxidation and the pathways regulating this function as well as the negative impact of dyslipidemia on the osteoblast and skeletal health. These findings provide key insights into the nuances of lipid metabolism in influencing skeletal homeostasis which are critical to appreciate the extent of the osteoblast's role in metabolic homeostasis.
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Affiliation(s)
- Nathalie S. Alekos
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Megan C. Moorer
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Baltimore Veterans Administration Medical Center, Baltimore, MD, United States
| | - Ryan C. Riddle
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Baltimore Veterans Administration Medical Center, Baltimore, MD, United States
- *Correspondence: Ryan C. Riddle
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29
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de Oliveira Peixoto J, Savoldi IR, Ibelli AMG, Cantão ME, Jaenisch FRF, Giachetto PF, Settles ML, Zanella R, Marchesi JAP, Pandolfi JR, Coutinho LL, Ledur MC. Proximal femoral head transcriptome reveals novel candidate genes related to epiphysiolysis in broiler chickens. BMC Genomics 2019; 20:1031. [PMID: 31888477 PMCID: PMC6937697 DOI: 10.1186/s12864-019-6411-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 12/18/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The proximal femoral head separation (FHS) or epiphysiolysis is a prevalent disorder affecting the chicken femur epiphysis, being considered a risk factor to infection which can cause bacterial chondronecrosis with osteomyelitis in broilers. To identify the genetic mechanisms involved in epiphysiolysis, differentially expressed (DE) genes in the femur of normal and FHS-affected broilers were identified using RNA-Seq technology. Femoral growth plate (GP) samples from 35-day-old commercial male broilers were collected from 4 healthy and 4 FHS-affected broilers. Sequencing was performed using an Illumina paired-end protocol. Differentially expressed genes were obtained using the edgeR package based on the False Discovery Rate (FDR < 0.05). RESULTS Approximately 16 million reads/sample were generated with 2 × 100 bp paired-end reads. After data quality control, approximately 12 million reads/sample were mapped to the reference chicken genome (Galgal5). A total of 12,645 genes were expressed in the femur GP. Out of those, 314 were DE between groups, being 154 upregulated and 160 downregulated in FHS-affected broilers. In the functional analyses, several biological processes (BP) were overrepresented. Among them, those related to cell adhesion, extracellular matrix (ECM), bone development, blood circulation and lipid metabolism, which are more related to chicken growth, are possibly involved with the onset of FHS. On the other hand, BP associated to apoptosis or cell death and immune response, which were also found in our study, could be related to the consequence of the FHS. CONCLUSIONS Genes with potential role in the epiphysiolysis were identified through the femur head transcriptome analysis, providing a better understanding of the mechanisms that regulate bone development in fast-growing chickens. In this study, we highlighted the importance of cell adhesion and extracellular matrix related genes in triggering FHS. Furthermore, we have shown new insights on the involvement of lipidemia and immune response/inflammation with FHS in broilers. Understanding the changes in the GP transcriptome might support breeding strategies to address poultry robustness and to obtain more resilient broilers.
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Affiliation(s)
- Jane de Oliveira Peixoto
- Embrapa Suínos e Aves, Rodovia BR-153, Km 110, Distrito de Tamanduá, Caixa Postal: 321, Concórdia, Santa Catarina 89715-899 Brazil
- Programa de Pós-Graduação em Ciências Veterinárias, Universidade Estadual do Centro-Oeste, Guarapuava, Paraná, Brazil
| | - Igor Ricardo Savoldi
- Embrapa Suínos e Aves, Rodovia BR-153, Km 110, Distrito de Tamanduá, Caixa Postal: 321, Concórdia, Santa Catarina 89715-899 Brazil
- Universidade do Contestado, Concórdia, Santa Catarina Brazil
- Programa de Pós-Graduação em Zootecnia, UDESC-Oeste, Chapecó, SC Brazil
| | - Adriana Mércia Guaratini Ibelli
- Embrapa Suínos e Aves, Rodovia BR-153, Km 110, Distrito de Tamanduá, Caixa Postal: 321, Concórdia, Santa Catarina 89715-899 Brazil
- Programa de Pós-Graduação em Ciências Veterinárias, Universidade Estadual do Centro-Oeste, Guarapuava, Paraná, Brazil
- Universidade do Contestado, Concórdia, Santa Catarina Brazil
| | - Maurício Egídio Cantão
- Embrapa Suínos e Aves, Rodovia BR-153, Km 110, Distrito de Tamanduá, Caixa Postal: 321, Concórdia, Santa Catarina 89715-899 Brazil
| | - Fátima Regina Ferreira Jaenisch
- Embrapa Suínos e Aves, Rodovia BR-153, Km 110, Distrito de Tamanduá, Caixa Postal: 321, Concórdia, Santa Catarina 89715-899 Brazil
| | | | | | - Ricardo Zanella
- Universidade de Passo Fundo, Passo Fundo, RS Brazil
- Programa de Mestrado em BioExperimentação, UPF, Passo Fundo, RS Brazil
| | - Jorge Augusto Petroli Marchesi
- Embrapa Suínos e Aves, Rodovia BR-153, Km 110, Distrito de Tamanduá, Caixa Postal: 321, Concórdia, Santa Catarina 89715-899 Brazil
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP Brazil
| | - José Rodrigo Pandolfi
- Embrapa Suínos e Aves, Rodovia BR-153, Km 110, Distrito de Tamanduá, Caixa Postal: 321, Concórdia, Santa Catarina 89715-899 Brazil
| | | | - Mônica Corrêa Ledur
- Embrapa Suínos e Aves, Rodovia BR-153, Km 110, Distrito de Tamanduá, Caixa Postal: 321, Concórdia, Santa Catarina 89715-899 Brazil
- Programa de Pós-Graduação em Zootecnia, UDESC-Oeste, Chapecó, SC Brazil
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Tourkova IL, Dobrowolski SF, Secunda C, Zaidi M, Papadimitriou-Olivgeri I, Papachristou DJ, Blair HC. The high-density lipoprotein receptor Scarb1 is required for normal bone differentiation in vivo and in vitro. J Transl Med 2019; 99:1850-1860. [PMID: 31467425 DOI: 10.1038/s41374-019-0311-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/20/2019] [Accepted: 07/15/2019] [Indexed: 12/20/2022] Open
Abstract
We examined bone formation and turnover in high-density lipoprotein (HDL) receptor, scavenger receptor type I (Scarb1), knockout animals relative to wild-type (WT) controls. Scarb1-/- animals have elevated serum adrenocorticotropic hormone (ACTH) due to the role of Scarb1 in glucocorticoid production, which might cause increased bone mass. However, this was not observed: Scarb1-/- mice, with ACTH, over 1000 pg/ml relative to wild-type ACTH ~ 25 pg/ml, bone of the knockout animals was osteopenic relative to the wild type at 16 weeks, including bone volume/total volume and trabecular thickness. Other serum parameters of WT and Scarb1-/- animals in cortisol or calcium were unaffected, although Scarb1-/- animals had significantly elevated PTH and decreased phosphate. Osteoblast and osteoclast-related mRNAs extracted from bone were greatly decreased at 8 or 16 weeks. Importantly, in normal ACTH, osteogenic differentiation in vitro from mesenchymal stem cells showed reduced alkaline phosphatase and mineralization. In Scarb1-/- cells relative to WT, mRNAs for RunX2, alkaline phosphatase, type I collagen, and osteocalcin were reduced 40-90%, all p < 0.01, indicating a role of Scarb1 in osteoblast differentiation independent of ACTH. Additionally, in vitro osteoblast differentiation at variable ACTH in WT cells confirmed ACTH increasing bone differentiation, mineralization, alkaline phosphatase, and osteocalcin mRNA at 0-10 nM ACTH, but reduced bone differentiation at 100-1000 nM ACTH. Overall Scarb1-/- animals show inhibited bone formation with age. This may be a mixed effect on direct bone formation and of very high ACTH. Further, this work shows that both ACTH concentration and the HDL receptor Scarb1 play important independent roles in osteoblast differentiation.
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Affiliation(s)
- Irina L Tourkova
- Veteran's Affairs Medical Center, Pittsburgh, PA, 15206, USA
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | | | - Cassandra Secunda
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Mone Zaidi
- The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Ioanna Papadimitriou-Olivgeri
- Department of Anatomy-Histology-Embryology, Unit of Bone and Soft Tissue Studies, University of Patras, School of Medicine, Patras, Greece
| | - Dionysios J Papachristou
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Department of Anatomy-Histology-Embryology, Unit of Bone and Soft Tissue Studies, University of Patras, School of Medicine, Patras, Greece
| | - Harry C Blair
- Veteran's Affairs Medical Center, Pittsburgh, PA, 15206, USA.
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA, 15261, USA.
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31
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Teplyakov AT, Berezikova EN, Shilov SN, Popova AA, Samsonova EN, Yakovleva IV, Molokov AV, Grakova EV, Kopeva KV. [The effect of bisphosphonate therapy on reducing the risk of cardiovascular complications associated with chronic heart failure, type 2 diabetes and osteoporosis in postmenopausal women]. TERAPEVT ARKH 2019; 91:63-69. [PMID: 32598633 DOI: 10.26442/00403660.2019.10.000162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Indexed: 11/22/2022]
Abstract
AIM To study the effectiveness of oral alendronate and ibandronate bisphosphonates for the prevention of cardiovascular complications in postmenopausal women with type 2 diabetes mellitus (DM) and osteoporosis during a 12-month prospective observation. MATERIALS AND METHODS The study included 86 women with osteoporosis, chronic heart failure (CHF) and type 2 diabetes: the 1st group (n=52) included patients who received basic therapy for heart failure; the 2nd group (n=34) included patients who, in addition to the basic therapy of heart failure, were prescribed alendronic and ibandronic acid preparations for the treatment of osteoporosis. In order to identify the possibility of associating the studied factors with the nature of the course of heart failure, the patients were divided according to the results of a one - year follow - up into two subgroups: subgroup A (n=49) - patients with a favorable course of the disease and subgroup B (n=37) - patients with an unfavorable course of pathology. RESULTS AND DISCUSSION After 12 months, a significant decrease in the levels of cerebral natriuretic peptide precursor (NT-proBNP), tumor necrosis factor-α, and interleukin-1β was found in the group of women treated with bisphosphonates compared to baseline. Significant associations of NT-proBNP levels (p=0.02) and the studied cytokines (p=0.01) with an unfavorable course of heart failure were revealed. A significant association of bisphosphonate therapy with a favorable course of heart failure (p=0.01) was also revealed. The probability of developing adverse cardiovascular events during the year in the treatment of heart failure with basic therapy drugs with additional therapy of osteoporosis with bisphosphonates is significantly (p=0.0025) lower than the treatment of patients with heart failure with only basic therapy and not taking bisphosphonates for the treatment of osteoporosis. CONCLUSION In postmenopausal women with associated cardiovascular pathology (CHF, type 2 diabetes and osteoporosis), prophylactic therapy with oral alendronate and ibandronate oral bisphosphonates is effective, reduces the risk of progression of heart failure, inhibits inflammatory mediators, positively affects the combined endpoints of comorbid cardiovascular pathology.
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Affiliation(s)
- A T Teplyakov
- Cardiology Research Institute, Tomsk National Research Medical Center
| | | | | | | | | | | | | | - E V Grakova
- Cardiology Research Institute, Tomsk National Research Medical Center
| | - K V Kopeva
- Cardiology Research Institute, Tomsk National Research Medical Center
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Kim YH, Jang WG, Oh SH, Kim JW, Lee MN, Song JH, Yang JW, Zang Y, Koh JT. Fenofibrate induces PPARα and BMP2 expression to stimulate osteoblast differentiation. Biochem Biophys Res Commun 2019; 520:459-465. [PMID: 31607484 DOI: 10.1016/j.bbrc.2019.10.048] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 10/03/2019] [Indexed: 10/25/2022]
Abstract
The peroxisome proliferator-activated receptor (PPAR)-α agonist fenofibrate is used as a lipid-lowering agent to reduce cholesterol and triglyceride in blood. In this study, we investigated whether fenofibrate affects osteoblast differentiation of osteogenic precursor cells. Quantitative real-time PCR and alkaline phosphatase (ALP) staining assays revealed that fenofibrate can enhance the osteoblast differentiation of C3H10T1/2 and MC3T3-E1 cells. In contrast with fenofibrate, the PPARγ agonist rosiglitazone decreased or did not affect the expression of osteogenic genes in these cells. Fenofibrate dose- and time-dependently increased PPARα expression, and concomitantly increased the expression of bone morphogenetic protein 2 (BMP2). Knockdown of PPARα abolished fenofibrate-induced BMP2 expression, activity of the BMP2 promoter gene, and calcium deposition. The chromatin immunoprecipitation assay demonstrated that fenofibrate increased BMP2 expression by inducing direct binding of PPARα to the BMP2 promoter region. Taken together, we suggest that fenofibrate has a stimulatory effect on osteoblast differentiation via the elevation of PPARα levels and the PPARα-mediated BMP2 expression. Our findings provide fenofibrate as a useful agent for controlling hypercholesterolemic patients with osteoporosis.
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Affiliation(s)
- Yu-Ha Kim
- Hard Tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea; Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Won-Gu Jang
- Department of Biotechnology, School of Engineering, Daegu University, Gyeongsan, Republic of Korea
| | - Sin-Hye Oh
- Hard Tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea; Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Jung-Woo Kim
- Hard Tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea; Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Mi Nam Lee
- Hard Tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea; Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Ju Han Song
- Hard Tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea; Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Jin-Woo Yang
- Hard Tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea; Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Yaran Zang
- Hard Tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea; Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Jeong-Tae Koh
- Hard Tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea; Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.
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Kalka M, Markiewicz N, Ptak M, Sone ED, Ożyhar A, Dobryszycki P, Wojtas M. In vivo and in vitro analysis of starmaker activity in zebrafish otolith biomineralization. FASEB J 2019; 33:6877-6886. [PMID: 30840836 DOI: 10.1096/fj.201802268r] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Otoliths are one of the biominerals whose formation is highly controlled by proteins. The first protein discovered to be involved in otolith biomineralization in zebrafish was starmaker (Stm). Previously, Stm was shown to be responsible for the preferential formation of aragonite, a polymorph of calcium carbonate, in otoliths. In this work, proteomic analysis of adult zebrafish otoliths was performed. Stm is the only highly phosphorylated protein found in our studies. Besides previously studied otolith proteins, we discovered several dozens of unknown proteins that reveal the likely mechanism of biomineralization. A comparison of aragonite and vaterite otoliths showed similarities in protein composition. We observed the presence of Stm in both types of otoliths. In vitro studies of 2 characteristic Stm fragments indicated that the DS-rich region has a special biomineralization activity, especially after phosphorylation.-Kalka, M., Markiewicz, N., Ptak, M., Sone, E. D., Ożyhar, A., Dobryszycki, P., Wojtas, M. In vivo and in vitro analysis of starmaker activity in zebrafish otolith biomineralization.
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Affiliation(s)
- Marta Kalka
- Department of Biochemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | - Natalia Markiewicz
- Department of Biochemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | - Maciej Ptak
- Division of Optical Spectroscopy, Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Wrocław, Poland; and
| | - Eli D Sone
- Department of Materials Science and Engineering, Institute of Biomaterials and Biomedical Engineering, and.,Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
| | - Andrzej Ożyhar
- Department of Biochemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | - Piotr Dobryszycki
- Department of Biochemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | - Magdalena Wojtas
- Department of Biochemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wrocław, Poland.,Department of Materials Science and Engineering, Institute of Biomaterials and Biomedical Engineering, and.,Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
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Mandair GS, Steenhuis P, Ignelzi MA, Morris MD. Bone quality assessment of osteogenic cell cultures by Raman microscopy. JOURNAL OF RAMAN SPECTROSCOPY : JRS 2019; 50:360-370. [PMID: 37035410 PMCID: PMC10081538 DOI: 10.1002/jrs.5521] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
The use of autologous stem/progenitor cells represents a promising approach to the repair of craniofacial bone defects. The calvarium is recognized as a viable source of stem/progenitor cells that can be transplanted in vitro to form bone. However, it is unclear if bone formed in cell culture is similar in quality to that found in native bone. In this study, the quality of bone mineral formed in osteogenic cell cultures were compared against calvarial bone from postnatal mice. Given the spectroscopic resemblance that exists between cell and collagen spectra, the feasibility of extracting information on cell activity and bone matrix quality were also examined. Stem/progenitor cells isolated from fetal mouse calvaria were cultured onto fused-quartz slides under osteogenic differentiation conditions for 28 days. At specific time intervals, slides were removed and analyzed by Raman microscopy and mineral staining techniques. We show that bone formed in culture at Day 28 resembled calvarial bone from 1-day-old postnatal mice with comparable mineralization, mineral crystallinity, and collagen crosslinks ratios. In contrast, bone formed at Day 28 contained a lower degree of ordered collagen fibrils compared with 1-day-old postnatal bone. Taken together, bone formed in osteogenic cell culture exhibited progressive matrix maturation and mineralization but could not fully replicate the high degree of collagen fibril order found in native bone.
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Affiliation(s)
- Gurjit S. Mandair
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, Michigan
| | - Pieter Steenhuis
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, Michigan
| | - Michael A. Ignelzi
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, The University of North Carolina, Chapel Hill, North Carolina
| | - Michael D. Morris
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan
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Charapata P, Horstmann L, Jannasch A, Misarti N. A novel method to measure steroid hormone concentrations in walrus bone from archaeological, historical, and modern time periods using liquid chromatography/tandem mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2018; 32:1999-2023. [PMID: 30192037 PMCID: PMC6282614 DOI: 10.1002/rcm.8272] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 08/15/2018] [Accepted: 08/19/2018] [Indexed: 05/24/2023]
Abstract
RATIONALE A liquid chromatography/tandem mass spectrometry (LC/MS/MS) method was validated and utilized to measure and analyze four steroid hormones related to stress and reproduction in individual samples from a novel tissue, Pacific walrus (Odobenus rosmarus divergens, herein walrus) bone. This method determines steroid hormone concentrations in the remote walrus population over millennia from archaeological (>200 bp), historical (200-20 bp), and modern (2014-2016) time periods. METHODS Lipids were extracted from walrus bone collected from these periods using methanol before LC/MS/MS analysis. Isotopically labeled internal standards for each target hormone were added to every sample. Analytical and physiological validations were performed. Additionally, a tissue comparison was done among paired walrus bone, serum, and blubber samples. A rapid resolution liquid chromatography system coupled to a QqQ mass spectrometer was used to analyze all samples after derivatization for progesterone, testosterone, cortisol, and estradiol concentrations. Multiple reaction monitoring was used for MS analysis and data were acquired in positive electrospray ionization mode. RESULTS Progesterone, testosterone, cortisol, and estradiol were linear along their respective standard calibration curves based on their R2 values (all > 0.99). Accuracy ranged from 93-111% for all hormones. The recovery of extraction, recovery of hormones without matrix effect, was 92-101%. The overall process efficiency of our method for measuring hormones in walrus bone was 93-112%. Progesterone and testosterone concentrations were not affected by reproductive status among adult females and males, respectively. However, estradiol was different among pregnant and non-pregnant adult females. Overall, steroid hormones reflect a long-term reservoir in cortical bone. This method was also successfully applied to walrus bone as old as 3585 bp. CONCLUSIONS LC/MS/MS analysis of bone tissue (0.2-0.3 g) provides stress and reproductive data from elusive walruses that were alive thousands of years ago. Based on physiological validations, tissue comparison, and published literature, steroid hormone concentrations measured in walrus cortical bone could represent an accumulated average around a 10-20-year time span. By investigating how stress and reproductive physiology may have changed over the past ~3000 years based on bone steroid hormone concentrations, this method will help answer how physiologically resilient walruses are to climate change in the Arctic.
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Affiliation(s)
- Patrick Charapata
- College of Fisheries and Ocean SciencesUniversity of Alaska FairbanksPO Box 757220FairbanksAK99775USA
- Department of BiologyBaylor UniversityOne Bear PlaceWacoTX76706USA
| | - Lara Horstmann
- College of Fisheries and Ocean SciencesUniversity of Alaska FairbanksPO Box 757220FairbanksAK99775USA
| | - Amber Jannasch
- Bindley Bioscience CenterPurdue University1203 W State St.West LafayetteIN47906USA
| | - Nicole Misarti
- Water and Environmental Research CenterUniversity of Alaska FairbanksPO Box 755910FairbanksAK99775USA
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Huang X, Lv Y, He P, Wang Z, Xiong F, He L, Zheng X, Zhang D, Cao Q, Tang C. HDL impairs osteoclastogenesis and induces osteoclast apoptosis via upregulation of ABCG1 expression. Acta Biochim Biophys Sin (Shanghai) 2018; 50:853-861. [PMID: 30060101 DOI: 10.1093/abbs/gmy081] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Indexed: 12/17/2022] Open
Abstract
Cholesterol is one of the major components of biological membranes and has an important function in osteoclast formation and survival. It has been reported that high-density lipoprotein (HDL) promotes cholesterol efflux from osteoclasts and induces their apoptosis, but the underlying mechanisms are unclear. In this study, we investigated how HDL promotes osteoclast cholesterol efflux and explored its effect on osteoclast formation and survival. Our results showed that the maximum diameter and fusion index of osteoclasts were decreased, while the ratios of osteoclasts with pyknotic nuclei were increased when cells were treated with HDL (600 ng/ml), as revealed by tartrate-resistant acid phosphatase-positive staining and microscopy assay. HDL enhanced cellular cholesterol efflux from osteoclasts in both concentration- and time-dependent manners. The ability of HDL3 to stimulate cholesterol efflux was stronger than preβ-HDL, HDL2, and ApoAI. Knockdown of ABCG1 expression reduced HDL-mediated cholesterol efflux and restored the HDL-induced reduction in osteoclast formation. Finally, HDL3 promoted sphingomyelin efflux from osteoclasts and reduced the expression of caveolin-1. Together, the findings demonstrate that HDL3 upregulates ABCG1 expression and promotes cholesterol efflux from osteoclast, impairs cholesterol homeostasis in osteoclasts, and consequently enhances osteoclast apoptosis.
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Affiliation(s)
- Xinyun Huang
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, Medical Research Center, Hengyang, China
- Department of Spine Surgery, The Second Affiliated Hospital, University of South China, Hengyang, China
| | - Yuan Lv
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, Medical Research Center, Hengyang, China
- Department of Biochemistry and Molecular Biology, School of Pharmacy and Life Science University of South China, Hengyang, China
| | - Panpan He
- Department of Biochemistry and Molecular Biology, School of Pharmacy and Life Science University of South China, Hengyang, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South, Hengyang, China
| | - Zongbao Wang
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, Medical Research Center, Hengyang, China
- Department of Biochemistry and Molecular Biology, School of Pharmacy and Life Science University of South China, Hengyang, China
| | - Fang Xiong
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, Medical Research Center, Hengyang, China
- Department of Biochemistry and Molecular Biology, School of Pharmacy and Life Science University of South China, Hengyang, China
| | - Linhao He
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, Medical Research Center, Hengyang, China
- Department of Biochemistry and Molecular Biology, School of Pharmacy and Life Science University of South China, Hengyang, China
| | - Xilong Zheng
- Department of Biochemistry & Molecular Biology and Department of Physiology & Pharmacology, Cumming School of Medicine, Libin Cardiovascular Institute of Alberta, University of Calgary, Health Sciences Center, Calgary, Alberta, Canada
- Key Laboratory of Molecular Targets & Clinical Pharmacology, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Dawei Zhang
- Department of Pediatrics and Group on the Molecular and Cell Biology of Lipids, University of Alberta, Alberta, Canada
| | - Qi Cao
- Department of Spine Surgery, The Second Affiliated Hospital, University of South China, Hengyang, China
| | - Chaoke Tang
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, Medical Research Center, Hengyang, China
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Oxidized phospholipids are ligands for LRP6. Bone Res 2018; 6:22. [PMID: 30038821 PMCID: PMC6050227 DOI: 10.1038/s41413-018-0023-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 05/10/2018] [Accepted: 05/30/2018] [Indexed: 02/07/2023] Open
Abstract
Low-density lipoprotein receptor-related protein 6 (LRP6) is a co-receptor for Wnt signaling and can be recruited by multiple growth factors/hormones to their receptors facilitating intracellular signaling activation. The ligands that bind directly to LRP6 have not been identified. Here, we report that bioactive oxidized phospholipids (oxPLs) are native ligands of LRP6, but not the closely related LRP5. oxPLs are products of lipid oxidation involving in pathological conditions such as hyperlipidemia, atherosclerosis, and inflammation. We found that cell surface LRP6 in bone marrow mesenchymal stromal cells (MSCs) decreased rapidly in response to increased oxPLs in marrow microenvironment. LRP6 directly bound and mediated the uptake of oxPLs by MSCs. oxPL-LRP6 binding induced LRP6 endocytosis through a clathrin-mediated pathway, decreasing responses of MSCs to osteogenic factors and diminishing osteoblast differentiation ability. Thus, LRP6 functions as a receptor and molecular target of oxPLs for their adverse effect on MSCs, revealing a potential mechanism underlying atherosclerosis-associated bone loss.
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Ambrogini E, Que X, Wang S, Yamaguchi F, Weinstein RS, Tsimikas S, Manolagas SC, Witztum JL, Jilka RL. Oxidation-specific epitopes restrain bone formation. Nat Commun 2018; 9:2193. [PMID: 29875355 PMCID: PMC5990540 DOI: 10.1038/s41467-018-04047-5] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 03/26/2018] [Indexed: 12/14/2022] Open
Abstract
Atherosclerosis and osteoporosis are epidemiologically linked and oxidation specific epitopes (OSEs), such as phosphocholine (PC) of oxidized phospholipids (PC-OxPL) and malondialdehyde (MDA), are pathogenic in both. The proatherogenic effects of OSEs are opposed by innate immune antibodies. Here we show that high-fat diet (HFD)-induced bone loss is attenuated in mice expressing a single chain variable region fragment of the IgM E06 (E06-scFv) that neutralizes PC-OxPL, by increasing osteoblast number and stimulating bone formation. Similarly, HFD-induced bone loss is attenuated in mice expressing IK17-scFv, which neutralizes MDA. Notably, E06-scFv also increases bone mass in mice fed a normal diet. Moreover, the levels of anti-PC IgM decrease in aged mice. We conclude that OSEs, whether produced chronically or increased by HFD, restrain bone formation, and that diminished defense against OSEs may contribute to age-related bone loss. Anti-OSEs, therefore, may represent a novel therapeutic approach against osteoporosis and atherosclerosis simultaneously.
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Affiliation(s)
- Elena Ambrogini
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences and Central Arkansas Veterans Healthcare System, 4301W. Markham, Little Rock, AR, 72205, USA.
| | - Xuchu Que
- Division of Endocrinology and Metabolism, University of California San Diego, La Jolla, CA, 92093-0682, USA
| | - Shuling Wang
- Division of Endocrinology and Metabolism, University of California San Diego, La Jolla, CA, 92093-0682, USA
| | - Fumihiro Yamaguchi
- Division of Endocrinology and Metabolism, University of California San Diego, La Jolla, CA, 92093-0682, USA
| | - Robert S Weinstein
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences and Central Arkansas Veterans Healthcare System, 4301W. Markham, Little Rock, AR, 72205, USA
| | - Sotirios Tsimikas
- Department of Medicine, Cardiololgy, University of California San Diego, 9500 GilmanDrive, La Jolla, CA, 92093-0682, USA
| | - Stavros C Manolagas
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences and Central Arkansas Veterans Healthcare System, 4301W. Markham, Little Rock, AR, 72205, USA
| | - Joseph L Witztum
- Division of Endocrinology and Metabolism, University of California San Diego, La Jolla, CA, 92093-0682, USA
| | - Robert L Jilka
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences and Central Arkansas Veterans Healthcare System, 4301W. Markham, Little Rock, AR, 72205, USA
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The Differentiation Balance of Bone Marrow Mesenchymal Stem Cells Is Crucial to Hematopoiesis. Stem Cells Int 2018; 2018:1540148. [PMID: 29765406 PMCID: PMC5903338 DOI: 10.1155/2018/1540148] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 02/21/2018] [Indexed: 01/20/2023] Open
Abstract
Bone marrow mesenchymal stem cells (BMSCs), the important component and regulator of bone marrow microenvironment, give rise to hematopoietic-supporting stromal cells and form hematopoietic niches for hematopoietic stem cells (HSCs). However, how BMSC differentiation affects hematopoiesis is poorly understood. In this review, we focus on the role of BMSC differentiation in hematopoiesis. We discussed the role of BMSCs and their progeny in hematopoiesis. We also examine the mechanisms that cause differentiation bias of BMSCs in stress conditions including aging, irradiation, and chemotherapy. Moreover, the differentiation balance of BMSCs is crucial to hematopoiesis. We highlight the negative effects of differentiation bias of BMSCs on hematopoietic recovery after bone marrow transplantation. Keeping the differentiation balance of BMSCs is critical for hematopoietic recovery. This review summarises current understanding about how BMSC differentiation affects hematopoiesis and its potential application in improving hematopoietic recovery after bone marrow transplantation.
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Manolagas SC. The Quest for Osteoporosis Mechanisms and Rational Therapies: How Far We've Come, How Much Further We Need to Go. J Bone Miner Res 2018; 33:371-385. [PMID: 29405383 PMCID: PMC6816306 DOI: 10.1002/jbmr.3400] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 01/25/2018] [Accepted: 01/27/2018] [Indexed: 12/30/2022]
Abstract
During the last 40 years, understanding of bone biology and the pathogenesis of osteoporosis, the most common and impactful bone disease of old age, has improved dramatically thanks to basic and clinical research advances, genetic insights from humans and rodents, and newer imaging technologies. Culprits of osteoporosis are no longer a matter of speculation based on in vitro observations. Instead, they can be identified and dissected at the cellular and molecular level using genetic approaches; and their effect on distinct bone envelopes and anatomic regions can be functionally assessed in vivo. The landscape of pharmacotherapies for osteoporosis has also changed profoundly with the emergence of several potent antiresorptive drugs as well as anabolic agents, displacing estrogen replacement as the treatment of choice. In spite of these major positive developments, the optimal duration of the available therapies and their long-term safety remain matters of conjecture and some concern. Moreover, antiresorptive therapies are used indiscriminately for patients of all ages on the assumption that suppressing remodeling is always beneficial for bone, but rebound remodeling upon their discontinuation suggests otherwise. In this invited perspective, I highlight the latest state of knowledge of bone-intrinsic and extrinsic mechanisms responsible for the development of osteoporosis in both sexes; differences between the mechanisms responsible for the effects of aging and estrogen deficiency; and the role of old osteocytes in the development of cortical porosity. In addition, I highlight advances toward the goal of developing drugs for several degenerative diseases of old age at once, including osteoporosis, by targeting shared mechanisms of aging. © 2018 American Society for Bone and Mineral Research.
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Affiliation(s)
- Stavros C Manolagas
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences and the Central Arkansas Veterans Healthcare System, Little Rock, AR, USA
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Krishnan S, Anderson MP, Fields DA, Misra M. Abdominal obesity adversely affects bone mass in children. World J Clin Pediatr 2018; 7:43-48. [PMID: 29456931 PMCID: PMC5803564 DOI: 10.5409/wjcp.v7.i1.43] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Revised: 11/05/2017] [Accepted: 11/28/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To determine the effect of childhood obesity and insulin resistance on bone health.
METHODS We conducted a cross sectional study in pubertal adolescents and young adults 13-20 years old who were either overweight/obese or normal weight. Participants were Tanner 3 or above for pubertal stage, and had fasting blood work done to measure glucose, insulin, C-reactive protein and lipid levels. Homeostatic model of insulin resistance (HOMA-IR) was calculated using the formula (Fasting Blood Glucose *Insulin/405). Body composition and bone mineral density were measured using dual energy X-ray absorptiometry (DXA; Hologic QDR 4500, Waltham, MA, United Kingdom).
RESULTS Percent trunk fat was associated inversely with whole body bone mineral content (BMC), whereas HOMA-IR was associated positively with whole body BMC.
CONCLUSION Our results suggest that abdominal adiposity may have an adverse effect on whole body bone parameters and that this effect is not mediated by insulin resistance.
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Affiliation(s)
- Sowmya Krishnan
- Department of Pediatrics, University of Oklahoma Health Sciences Center, Harold Hamm Diabetes Center, Oklahoma City, OK 73104, United States
| | - Michael P Anderson
- College of Public Health, University of Oklahoma Health Science Center, Oklahoma City, OK 73104, United States
| | - David A Fields
- Department of Pediatrics, University of Oklahoma Health Sciences Center, Harold Hamm Diabetes Center, Oklahoma City, OK 73104, United States
| | - Madhusmita Misra
- Massachusetts General Hospital for Children and Harvard Medical School, Boston, MA 02114, United States
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Zheng Y, Wang S, Yan P. The meat quality, muscle fiber characteristics and fatty acid profile in Jinjiang and F1 Simmental×Jinjiang yellow cattle. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2017; 31:301-308. [PMID: 28823135 PMCID: PMC5767514 DOI: 10.5713/ajas.17.0319] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 06/14/2017] [Accepted: 07/28/2017] [Indexed: 01/19/2023]
Abstract
OBJECTIVE This study compared the meat quality, muscle fiber characteristics, and fatty acids between Jinjiang yellow cattle (JJ) and F1 Simmental×Jinjiang yellow cattle (SJ) which were offered the same diet. METHODS Six JJ and six SJ individuals were reared and fattened from 10 to 26 months of age. After feeding, the highrib (HR), ribeye (RB), and tenderloin (TL) samples were taken from the carcass for meat quality evaluations. RESULTS The results showed that growth performance of SJ was higher than that of JJ (higher live weight and average daily gain), and the hot carcass weight of SJ was higher than that of JJ (p<0.05). pH of JJ was higher than that of SJ in TL (p<0.05); the color of a* of SJ was higher than that of JJ in TL and RB (p<0.05); the cooking loss of SJ was significantly lower than that of JJ in TL and RB (p<0.05); the shear force value was significantly lower in SJ compared to JJ (p<0.05); the muscle fiber diameter was higher and the fiber density was lower in SJ compared to JJ in HR and TL (p<0.05); compared to SJ, the muscles of JJ had higher saturated fatty acid (SFA) composition; the sum of monounsaturated fatty acid and polyunsaturated fatty acid (PUFA) were lower in the muscle of JJ; the mRNA expressions of myosin heavy chain-I (MyHC-I) and MyHC-IIa were higher in SJ compared to JJ in muscle of HR and RB; the mRNA expressions of MyHC-IIx and MyHC-IIb were lower in SJ compared to JJ in HR and RB (p<0.05). CONCLUSION Meat quality and fatty acid profile differed between SJ and JJ; the muscle of SJ had higher a* and SFA; SJ had lower cooking loss, shear force and PUFA compared to the muscle of JJ. In addition, the type and development characteristics of the muscle fiber had some difference between SJ and JJ; these might be factors which caused the differences in meat quality and fatty acid profile between SJ and JJ.
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Affiliation(s)
- Yue Zheng
- Department of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Shizhi Wang
- Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala 75233, Sweden
| | - Peishi Yan
- Department of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
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Kheder R, Hobkirk J, Saeed Z, Janus J, Carroll S, Browning MJ, Stover C. Vitamin D 3 supplementation of a high fat high sugar diet ameliorates prediabetic phenotype in female LDLR -/- and LDLR +/+ mice. Immun Inflamm Dis 2017; 5:151-162. [PMID: 28474500 PMCID: PMC5418139 DOI: 10.1002/iid3.154] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 01/28/2017] [Accepted: 01/31/2017] [Indexed: 12/21/2022] Open
Abstract
INTRODUCTION Fatty liver disease is prevalent in populations with high caloric intake. Nutritherapeutic approaches are being considered, such as supplementary Vitamin D3 , to improve aspects of metabolic syndrome, namely fatty liver disease, hyperlipidemia, and insulin resistance associated with obesity. METHODS We analyzed female LDLR-/- and LDLR+/+ mice on a 10-week diabetogenic diet for markers of fatty liver disease, metabolic strain, and inflammation. RESULTS The groups on a high fat high sugar diet with supplementary Vitamin D3 , in comparison with the groups on a high fat high sugar diet alone, showed improved transaminase levels, significantly less hypertriglyceridemia and hyperinsulinemia, and histologically, there was less pericentral hepatic steatosis. Levels of non-esterified fatty acids and lipid peroxidation products were significantly lower in the group supplemented with additional Vitamin D3 , as were systemic markers of inflammation (serum endotoxin and IL-6). M2 macrophage phenotype predominated in the group supplemented with additional Vitamin D3 . Beneficial changes were observed as early as five weeks' supplementation with Vitamin D3 and extended to restoration of high fat high sugar diet induced decrease of bone mineral density. CONCLUSION In summary, Vitamin D3 was a significantly beneficial dietary additive to blunt a prediabetic phenotype in diet-induced obesity of female LDLR-/- and LDLR+/+ mice.
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Affiliation(s)
- Ramiar Kheder
- Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, UK
- College of Nursing, University of Raparin, Kurdistan Region, Iraq
| | - James Hobkirk
- Department of Sport, Health and Exercise Science, University of Hull, Hull, UK
| | - Zeayd Saeed
- Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, UK
- Department of Nursing, Technical institute of Samawa, Iraq
| | - Justyna Janus
- Preclinical Imaging Facility, Core Biotechnology Services, University of Leicester, Leicester, UK
| | - Sean Carroll
- Department of Sport, Health and Exercise Science, University of Hull, Hull, UK
| | - Michael J Browning
- Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, UK
- Department of Immunology, Leicester Royal Infirmary, Leicester, UK
| | - Cordula Stover
- Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, UK
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Chang PY, Gold EB, Cauley JA, Johnson WO, Karvonen-Gutierrez C, Jackson EA, Ruppert KM, Lee JS. Triglyceride Levels and Fracture Risk in Midlife Women: Study of Women's Health Across the Nation (SWAN). J Clin Endocrinol Metab 2016; 101:3297-305. [PMID: 27294327 PMCID: PMC5010577 DOI: 10.1210/jc.2016-1366] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Unfavorable lipid levels contribute to cardiovascular disease and may also harm bone health. OBJECTIVE Our objective was to investigate relationships between fasting plasma lipid levels and incident fracture in midlife women undergoing the menopausal transition. DESIGN AND SETTING This was a 13-year prospective, longitudinal study of multiethnic women in five US communities, with near-annual assessments. PARTICIPANTS At baseline, 2062 premenopausal or early perimenopausal women who had no history of fracture were included. EXPOSURES Fasting plasma total cholesterol, triglycerides (TG), low-density lipoprotein cholesterol, and high-density lipoprotein cholesterol at baseline and follow-up visits 1 and 3-7. MAIN OUTCOME MEASURE(S) Incident nontraumatic fractures 1) 2 or more years after baseline, in relation to a single baseline level of lipids; and 2) 2-5 years later, in relation to time-varying lipid levels. Cox proportional hazards modelings estimated hazard ratios and 95% confidence interval (CI). RESULTS Among the lipids, TG levels changed the most, with median levels increased by 16% during follow-up. An increase of 50 mg/dl in baseline TG level was associated with a 1.1-fold increased hazards of fracture (adjusted hazard ratio, 1.11; 95% CI, 1.04-1.18). Women with baseline TG higher than 300 mg/dl had an adjusted 2.5-fold greater hazards for fractures (95% CI, 1.13-5.44) than women with baseline TG lower than 150 mg/dl. Time-varying analyses showed a comparable TG level-fracture risk relationship. Associations between total cholesterol, low-density lipoprotein cholesterol, or high-density lipoprotein cholesterol levels and fractures were not observed. CONCLUSIONS Midlife women with high fasting plasma TG had an increased risk of incident nontraumatic fracture. Secondary Abstract: Midlife women with fasting plasma triglyceride (TG) of at least 300 mg/dl had 2.5-fold greater hazards of fracture in 2 years later and onward, compared to those with TG below 150 mg/dl, in a multiethnic cohort. Time-varying analyses revealed comparable results.
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Affiliation(s)
- Po-Yin Chang
- Division of Endocrinology, Gerontology, and Metabolism (P.-Y.C., J.S.L.), Department of Medicine, Stanford University School of Medicine, Stanford, California; Department of Public Health Sciences (E.B.G.), University of California, Davis, Davis, California; Department of Epidemiology (J.A.C., K.M.R.), University of Pittsburgh School of Public Health, Pittsburgh, Pennsylvania; Department of Statistics (W.O.J.), University of California, Irvine, Irvine, California; 5Department of Epidemiology (C.K.-G.), University of Michigan School of Public Health, Ann Arbor, Michigan; Division of Cardiovascular Medicine (E.A.J.), Department of Medicine, University of Michigan Health Systems, Ann Arbor, Michigan; Medical Services (J.S.L.), Veterans Affairs Palo Alto Health Care System, Palo Alto, California
| | - Ellen B Gold
- Division of Endocrinology, Gerontology, and Metabolism (P.-Y.C., J.S.L.), Department of Medicine, Stanford University School of Medicine, Stanford, California; Department of Public Health Sciences (E.B.G.), University of California, Davis, Davis, California; Department of Epidemiology (J.A.C., K.M.R.), University of Pittsburgh School of Public Health, Pittsburgh, Pennsylvania; Department of Statistics (W.O.J.), University of California, Irvine, Irvine, California; 5Department of Epidemiology (C.K.-G.), University of Michigan School of Public Health, Ann Arbor, Michigan; Division of Cardiovascular Medicine (E.A.J.), Department of Medicine, University of Michigan Health Systems, Ann Arbor, Michigan; Medical Services (J.S.L.), Veterans Affairs Palo Alto Health Care System, Palo Alto, California
| | - Jane A Cauley
- Division of Endocrinology, Gerontology, and Metabolism (P.-Y.C., J.S.L.), Department of Medicine, Stanford University School of Medicine, Stanford, California; Department of Public Health Sciences (E.B.G.), University of California, Davis, Davis, California; Department of Epidemiology (J.A.C., K.M.R.), University of Pittsburgh School of Public Health, Pittsburgh, Pennsylvania; Department of Statistics (W.O.J.), University of California, Irvine, Irvine, California; 5Department of Epidemiology (C.K.-G.), University of Michigan School of Public Health, Ann Arbor, Michigan; Division of Cardiovascular Medicine (E.A.J.), Department of Medicine, University of Michigan Health Systems, Ann Arbor, Michigan; Medical Services (J.S.L.), Veterans Affairs Palo Alto Health Care System, Palo Alto, California
| | - Wesley O Johnson
- Division of Endocrinology, Gerontology, and Metabolism (P.-Y.C., J.S.L.), Department of Medicine, Stanford University School of Medicine, Stanford, California; Department of Public Health Sciences (E.B.G.), University of California, Davis, Davis, California; Department of Epidemiology (J.A.C., K.M.R.), University of Pittsburgh School of Public Health, Pittsburgh, Pennsylvania; Department of Statistics (W.O.J.), University of California, Irvine, Irvine, California; 5Department of Epidemiology (C.K.-G.), University of Michigan School of Public Health, Ann Arbor, Michigan; Division of Cardiovascular Medicine (E.A.J.), Department of Medicine, University of Michigan Health Systems, Ann Arbor, Michigan; Medical Services (J.S.L.), Veterans Affairs Palo Alto Health Care System, Palo Alto, California
| | - Carrie Karvonen-Gutierrez
- Division of Endocrinology, Gerontology, and Metabolism (P.-Y.C., J.S.L.), Department of Medicine, Stanford University School of Medicine, Stanford, California; Department of Public Health Sciences (E.B.G.), University of California, Davis, Davis, California; Department of Epidemiology (J.A.C., K.M.R.), University of Pittsburgh School of Public Health, Pittsburgh, Pennsylvania; Department of Statistics (W.O.J.), University of California, Irvine, Irvine, California; 5Department of Epidemiology (C.K.-G.), University of Michigan School of Public Health, Ann Arbor, Michigan; Division of Cardiovascular Medicine (E.A.J.), Department of Medicine, University of Michigan Health Systems, Ann Arbor, Michigan; Medical Services (J.S.L.), Veterans Affairs Palo Alto Health Care System, Palo Alto, California
| | - Elizabeth A Jackson
- Division of Endocrinology, Gerontology, and Metabolism (P.-Y.C., J.S.L.), Department of Medicine, Stanford University School of Medicine, Stanford, California; Department of Public Health Sciences (E.B.G.), University of California, Davis, Davis, California; Department of Epidemiology (J.A.C., K.M.R.), University of Pittsburgh School of Public Health, Pittsburgh, Pennsylvania; Department of Statistics (W.O.J.), University of California, Irvine, Irvine, California; 5Department of Epidemiology (C.K.-G.), University of Michigan School of Public Health, Ann Arbor, Michigan; Division of Cardiovascular Medicine (E.A.J.), Department of Medicine, University of Michigan Health Systems, Ann Arbor, Michigan; Medical Services (J.S.L.), Veterans Affairs Palo Alto Health Care System, Palo Alto, California
| | - Kristine M Ruppert
- Division of Endocrinology, Gerontology, and Metabolism (P.-Y.C., J.S.L.), Department of Medicine, Stanford University School of Medicine, Stanford, California; Department of Public Health Sciences (E.B.G.), University of California, Davis, Davis, California; Department of Epidemiology (J.A.C., K.M.R.), University of Pittsburgh School of Public Health, Pittsburgh, Pennsylvania; Department of Statistics (W.O.J.), University of California, Irvine, Irvine, California; 5Department of Epidemiology (C.K.-G.), University of Michigan School of Public Health, Ann Arbor, Michigan; Division of Cardiovascular Medicine (E.A.J.), Department of Medicine, University of Michigan Health Systems, Ann Arbor, Michigan; Medical Services (J.S.L.), Veterans Affairs Palo Alto Health Care System, Palo Alto, California
| | - Jennifer S Lee
- Division of Endocrinology, Gerontology, and Metabolism (P.-Y.C., J.S.L.), Department of Medicine, Stanford University School of Medicine, Stanford, California; Department of Public Health Sciences (E.B.G.), University of California, Davis, Davis, California; Department of Epidemiology (J.A.C., K.M.R.), University of Pittsburgh School of Public Health, Pittsburgh, Pennsylvania; Department of Statistics (W.O.J.), University of California, Irvine, Irvine, California; 5Department of Epidemiology (C.K.-G.), University of Michigan School of Public Health, Ann Arbor, Michigan; Division of Cardiovascular Medicine (E.A.J.), Department of Medicine, University of Michigan Health Systems, Ann Arbor, Michigan; Medical Services (J.S.L.), Veterans Affairs Palo Alto Health Care System, Palo Alto, California
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Editorial overview: Immunomodulation: Exploiting the circle between emotions and immunity: impact on pharmacological treatments. Curr Opin Pharmacol 2016; 29:viii-xii. [DOI: 10.1016/j.coph.2016.07.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Affiliation(s)
- Dwight A Towler
- From the Endocrine Division, Department of Internal Medicine, UT Southwestern Medical Center, Dallas, TX.
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Mroue KH, Xu J, Zhu P, Morris MD, Ramamoorthy A. Selective detection and complete identification of triglycerides in cortical bone by high-resolution (1)H MAS NMR spectroscopy. Phys Chem Chem Phys 2016; 18:18687-91. [PMID: 27374353 DOI: 10.1039/c6cp03506j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Using (1)H-based magic angle spinning solid-state NMR spectroscopy, we report an atomistic-level characterization of triglycerides in compact cortical bone. By suppressing contributions from immobile molecules present in bone, we show that a (1)H-based constant-time uniform-sign cross-peak (CTUC) two-dimensional COSY-type experiment that correlates the chemical shifts of protons can selectively detect a mobile triglyceride layer as the main component of small lipid droplets embedded on the surface of collagen fibrils. High sensitivity and resolution afforded by this NMR approach could be potentially utilized to investigate the origin of triglycerides and their pathological roles associated with bone fractures, diseases, and aging.
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Affiliation(s)
- Kamal H Mroue
- Biophysics Program, University of Michigan, Ann Arbor, MI 48109, USA.
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Wehmeier KR, Kurban W, Chandrasekharan C, Onstead-Haas L, Mooradian AD, Haas MJ. Inhibition of ABCA1 Protein Expression and Cholesterol Efflux by TNF α in MLO-Y4 Osteocytes. Calcif Tissue Int 2016; 98:586-95. [PMID: 26759003 DOI: 10.1007/s00223-015-0106-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 12/28/2015] [Indexed: 01/12/2023]
Abstract
Hip fracture and myocardial infarction cause significant morbidity and mortality. In vivo studies raising serum cholesterol levels as well as pro-inflammatory cytokines such as TNF α manifest bone loss and atherosclerotic vascular disease, suggesting that abnormalities of cholesterol transport may contribute to osteoporosis. We used the mouse osteocyte cell line (MLO-Y4) to investigate the effects of TNF α on the expression of cholesterol acceptor proteins such as apolipoprotein A-I (apo A-I) and apolipoprotein E (apo E), as well as on the cholesterol transporters ATP-binding cassette-1 (ABCA1), scavenger receptor class B type 1 (SRB1), and cluster of differentiation 36 (CD36). MLO-Y4 cells do not express apo A-I or apo E; however, they do express all three cholesterol transporters (ABCA1, SRB1, and CD36). Treatment of MLO-Y4 cells with TNF α had no effect on SRB1, CD36, and osteocalcin levels; however, TNF α reduced ABCA1 protein levels in a dose-dependent manner and cholesterol efflux to apo A-I. Interestingly, TNF α treatment increased ABCA1 promoter activity and ABCA1 mRNA levels, and increased liver X receptor α protein expression, but had no effect on retinoid X receptor α and retinoic acid receptor α levels. Pharmacological inhibition of p38 mitogen-activated protein (MAP) kinase, but not c-jun-N-terminal kinase 1 or mitogen-activated protein kinase (MEK), restored ABCA1 protein levels in TNF α-treated cells. These results suggest that pro-inflammatory cytokines regulate cholesterol metabolism in osteocytes in part by suppressing ABCA1 levels post-translationally in a p38 MAP kinase-dependent manner.
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Affiliation(s)
- Kent R Wehmeier
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Florida College of Medicine, 653-1 West 8th Street, L14, Jacksonville, FL, 32209, USA
| | - William Kurban
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Florida College of Medicine, 653-1 West 8th Street, L14, Jacksonville, FL, 32209, USA
| | - Chandrikha Chandrasekharan
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Florida College of Medicine, 653-1 West 8th Street, L14, Jacksonville, FL, 32209, USA
| | - Luisa Onstead-Haas
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Florida College of Medicine, 653-1 West 8th Street, L14, Jacksonville, FL, 32209, USA
| | - Arshag D Mooradian
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Florida College of Medicine, 653-1 West 8th Street, L14, Jacksonville, FL, 32209, USA
| | - Michael J Haas
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Florida College of Medicine, 653-1 West 8th Street, L14, Jacksonville, FL, 32209, USA.
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Kuipers AL, Miljkovic I, Evans R, Bunker CH, Patrick AL, Zmuda JM. Optimal serum cholesterol concentrations are associated with accelerated bone loss in African ancestry men. Osteoporos Int 2016; 27:1577-1584. [PMID: 26602914 PMCID: PMC4792711 DOI: 10.1007/s00198-015-3416-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 11/09/2015] [Indexed: 01/14/2023]
Abstract
UNLABELLED We tested if serum lipid and lipoprotein cholesterol levels are associated with longitudinal measures of bone mineral density (BMD) in 1289 African ancestry men. After 6 years of mean follow-up, men with clinically optimal levels of low-density lipoprotein (LDL), high-density lipoprotein (HDL), or triglycerides at baseline experienced the greatest BMD loss, independent of potential confounding factors (all p < 0.05). INTRODUCTION Studies of lipid and lipoprotein cholesterol associations with bone mineral density (BMD) and bone loss have been inconclusive, and longitudinal data are sparse. Therefore, the aim of this study was to test if fasting serum lipid and lipoprotein cholesterol levels are associated with areal and volumetric BMD and BMD change. METHODS We determined the association of serum triglycerides, high-density lipoprotein (HDL), and low-density lipoprotein (LDL) cholesterol concentrations with cross-sectional and longitudinal (mean follow-up, 6.1 years) measures of BMD in a cohort of 1289 in African ancestry men (mean age, 56.4 years). Fasting serum triglycerides, HDL, and LDL were measured at baseline concurrent with BMD assessments. Dual-energy X-ray absorptiometry was used to quantify integral hip BMD, and peripheral quantitative computed tomography at the radius and tibia was used to quantify volumetric BMD. Men were categorized as optimal, borderline, or high risk for triglyceride, HDL, and LDL concentrations based on Adult Treatment Panel III guidelines. RESULTS Lower serum triglyceride or LDL and higher HDL concentrations were associated with lower trabecular BMD at baseline (all p < 0.05). Similarly, men classified as having optimal levels of LDL, HDL, or triglycerides at baseline experienced the greatest integral BMD loss at the hip and trabecular BMD loss at the tibia (all p < 0.05), independent of potential confounding factors. CONCLUSIONS We found that clinically optimal serum lipid and lipoprotein cholesterol concentrations were associated with accelerated bone loss among Afro-Caribbean men. Further studies are needed to better understand the mechanisms involved and potential clinical significance of these findings.
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Affiliation(s)
- A L Kuipers
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, 130 DeSoto Street, A543 Crabtree Hall, Pittsburgh, PA, 15261, USA.
| | - I Miljkovic
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, 130 DeSoto Street, A543 Crabtree Hall, Pittsburgh, PA, 15261, USA
| | - R Evans
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, 130 DeSoto Street, A543 Crabtree Hall, Pittsburgh, PA, 15261, USA
| | - C H Bunker
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, 130 DeSoto Street, A543 Crabtree Hall, Pittsburgh, PA, 15261, USA
| | - A L Patrick
- Tobago Health Studies Office, Jerningham Court, James Park, Scarborough, Tobago, Trinidad and Tobago
| | - J M Zmuda
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, 130 DeSoto Street, A543 Crabtree Hall, Pittsburgh, PA, 15261, USA
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Alsina E, Macri EV, Lifshitz F, Bozzini C, Rodriguez PN, Boyer PM, Friedman SM. Efficacy of phytosterols and fish-oil supplemented high-oleic-sunflower oil rich diets in hypercholesterolemic growing rats. Int J Food Sci Nutr 2016; 67:441-53. [PMID: 26983467 DOI: 10.3109/09637486.2016.1161010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Phytosterols (P) and fish-oil (F) efficacy on high-oleic-sunflower oil (HOSO) diets were assessed in hypercholesterolemic growing rats. Controls (C) received a standard diet for 8 weeks; experimental rats were fed an atherogenic diet (AT) for 3 weeks, thereafter were divided into four groups fed for 5 weeks a monounsaturated fatty acid diet (MUFA) containing either: extra virgin olive oil (OO), HOSO or HOSO supplemented with P or F. The diets did not alter body weight or growth. HOSO-P and HOSO-F rats showed reduced total cholesterol (T-chol), non-high-density lipoprotein-cholesterol (non-HDL-chol) and triglycerides and increased HDL-chol levels, comparably to the OO rats. Total body fat (%) was similar among all rats; but HOSO-F showed the lowest intestinal, epididymal and perirenal fat. However, bone mineral content and density, and bone yield stress and modulus of elasticity were unchanged. Growing hypercholesterolemic rats fed HOSO with P or F improved serum lipids and fat distribution, but did not influence material bone quality.
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Affiliation(s)
- Estefania Alsina
- a Department of Biochemistry, School of Dentistry , University of Buenos Aires , Buenos Aires , Argentina
| | - Elisa V Macri
- a Department of Biochemistry, School of Dentistry , University of Buenos Aires , Buenos Aires , Argentina
| | - Fima Lifshitz
- b Pediatric Sunshine Academics Inc , Santa Barbara , CA , USA
| | - Clarisa Bozzini
- c Department of Physiology, School of Dentistry , University of Buenos Aires , Buenos Aires , Argentina
| | - Patricia N Rodriguez
- a Department of Biochemistry, School of Dentistry , University of Buenos Aires , Buenos Aires , Argentina
| | - Patricia M Boyer
- c Department of Physiology, School of Dentistry , University of Buenos Aires , Buenos Aires , Argentina
| | - Silvia M Friedman
- d Department of General and Oral Biochemistry, School of Dentistry , University of Buenos Aires , Buenos Aires , Argentina
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