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Niu H, Zhou M, Xu X, Xu X. Bone Marrow Adipose Tissue as a Critical Regulator of Postmenopausal Osteoporosis - A Concise Review. Clin Interv Aging 2024; 19:1259-1272. [PMID: 39011312 PMCID: PMC11249116 DOI: 10.2147/cia.s466446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 06/27/2024] [Indexed: 07/17/2024] Open
Abstract
Postmenopausal osteoporosis (PMOP) is a major health problem affecting millions of women worldwide. PMOP patients are often accompanied by abnormal accumulation of bone marrow adipose tissue (BMAT). BMAT is a critical regulator of bone homeostasis, and an increasing BMAT volume is negatively associated with bone mass reduction or fracture. BMAT regulates bone metabolism via adipokines, cytokines and the immune system, but the specific mechanisms are largely unknown. This review emphasizes the impact of estrogen deficiency on bone homeostasis and BMAT expansion, and the mechanism by which BMAT regulates PMOP, providing a promising strategy for targeting BMAT in preventing and treating PMOP.
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Affiliation(s)
- Huifang Niu
- Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), Hubei Key Laboratory of Fruit Vegetable Processing Quality Control (Huazhong Agricultural University), School of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China
| | - Minfeng Zhou
- Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Xiaoyun Xu
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), Hubei Key Laboratory of Fruit Vegetable Processing Quality Control (Huazhong Agricultural University), School of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China
| | - Xiaojuan Xu
- Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
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Marinelli Busilacchi E, Morsia E, Poloni A. Bone Marrow Adipose Tissue. Cells 2024; 13:724. [PMID: 38727260 PMCID: PMC11083575 DOI: 10.3390/cells13090724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/19/2024] [Accepted: 04/19/2024] [Indexed: 05/13/2024] Open
Abstract
Bone marrow (BM) acts as a dynamic organ within the bone cavity, responsible for hematopoiesis, skeletal remodeling, and immune system control. Bone marrow adipose tissue (BMAT) was long simply considered a filler of space, but now it is known that it instead constitutes an essential element of the BM microenvironment that participates in homeostasis, influences bone health and bone remodeling, alters hematopoietic stem cell functions, contributes to the commitment of mesenchymal stem cells, provides effects to immune homeostasis and defense against infections, and participates in energy metabolism and inflammation. BMAT has emerged as a significant contributor to the development and progression of various diseases, shedding light on its complex relationship with health. Notably, BMAT has been implicated in metabolic disorders, hematological malignancies, and skeletal conditions. BMAT has been shown to support the proliferation of tumor cells in acute myeloid leukemia and niche adipocytes have been found to protect cancer cells against chemotherapy, contributing to treatment resistance. Moreover, BMAT's impact on bone density and remodeling can lead to conditions like osteoporosis, where high levels of BMAT are inversely correlated with bone mineral density, increasing the risk of fractures. BMAT has also been associated with diabetes, obesity, and anorexia nervosa, with varying effects on individuals depending on their weight and health status. Understanding the interaction between adipocytes and different diseases may lead to new therapeutic strategies.
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Affiliation(s)
- Elena Marinelli Busilacchi
- Hematology Laboratory, Department of Clinical and Molecular Sciences, DISCLIMO, Università Politecnica delle Marche, 60126 Ancona, Italy; (E.M.B.); (E.M.)
| | - Erika Morsia
- Hematology Laboratory, Department of Clinical and Molecular Sciences, DISCLIMO, Università Politecnica delle Marche, 60126 Ancona, Italy; (E.M.B.); (E.M.)
- Hematology, AOU delle Marche, 60126 Ancona, Italy
| | - Antonella Poloni
- Hematology Laboratory, Department of Clinical and Molecular Sciences, DISCLIMO, Università Politecnica delle Marche, 60126 Ancona, Italy; (E.M.B.); (E.M.)
- Hematology, AOU delle Marche, 60126 Ancona, Italy
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Bacharach T, Kaushansky N, Shlush LI. Age-related micro-environmental changes as drivers of clonal hematopoiesis. Curr Opin Hematol 2024; 31:53-57. [PMID: 38133628 DOI: 10.1097/moh.0000000000000798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
PURPOSE OF REVIEW Both aging and reduced diversity at the hematopoietic stem cells (HSCs) level are ubiquitous. What remains unclear is why some individuals develop clonal hematopoiesis (CH), and why does CH due to specific mutations occur in specific individuals. Much like aging, reduced diversity of HSCs is a complex phenotype shaped by numerous factors (germline & environment). The purpose of the current review is to discuss the role of two other age-related ubiquitous processes that might contribute to the dynamics and characteristics of losing HSC diversity and the evolution of CH. These processes have not been reviewed in depth so far and include the accumulation of fatty bone marrow (FBM), and the decline in sex hormones. RECENT FINDINGS Interestingly, sex hormone decline can directly shape HSC function, but also reshape the delicate balance of BM supporting cells, with a shift towards FBM. FBM accumulation can shape the clonal expansion of preleukemic mutations, particularly DNMT3A mutations, through IL-6 mediation. DNMT3A mutations are one of the only preleukemic mutations which is more prevalent in women, and especially in women with early menopause, demonstrating an association between age-related hormone decline and CH evolution, the mechanisms of which are yet to be discovered. SUMMARY Aging is a multifactorial phenotype and the same is true for the aging of the blood system. While many factors which can shape CH have been discussed, we shed more light on FBM and sex hormone decline. Much more is missing: how and should we even try to prevent these phenomena? Why do they occur? and how they are connected to other age-related blood factors?
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Affiliation(s)
- Tal Bacharach
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot
| | - Nathali Kaushansky
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot
| | - Liran I Shlush
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot
- Maccabi Healthcare Services, Tel Aviv, Israel
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Khotib J, Marhaeny HD, Miatmoko A, Budiatin AS, Ardianto C, Rahmadi M, Pratama YA, Tahir M. Differentiation of osteoblasts: the links between essential transcription factors. J Biomol Struct Dyn 2023; 41:10257-10276. [PMID: 36420663 DOI: 10.1080/07391102.2022.2148749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 11/12/2022] [Indexed: 11/27/2022]
Abstract
Osteoblasts, cells derived from mesenchymal stem cells (MSCs) in the bone marrow, are cells responsible for bone formation and remodeling. The differentiation of osteoblasts from MSCs is triggered by the expression of specific genes, which are subsequently controlled by pro-osteogenic pathways. Mature osteoblasts then differentiate into osteocytes and are embedded in the bone matrix. Dysregulation of osteoblast function can cause inadequate bone formation, which leads to the development of bone disease. Various key molecules are involved in the regulation of osteoblastogenesis, which are transcription factors. Previous studies have heavily examined the role of factors that control gene expression during osteoblastogenesis, both in vitro and in vivo. However, the systematic relationship of these transcription factors remains unknown. The involvement of ncRNAs in this mechanism, particularly miRNAs, lncRNAs, and circRNAs, has been shown to influence transcriptional factor activity in the regulation of osteoblast differentiation. Here, we discuss nine essential transcription factors involved in osteoblast differentiation, including Runx2, Osx, Dlx5, β-catenin, ATF4, Ihh, Satb2, and Shn3. In addition, we summarize the role of ncRNAs and their relationship to these essential transcription factors in order to improve our understanding of the transcriptional regulation of osteoblast differentiation. Adequate exploration and understanding of the molecular mechanisms of osteoblastogenesis can be a critical strategy in the development of therapies for bone-related diseases.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Junaidi Khotib
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas Airlangga, Surabaya, Indonesia
| | - Honey Dzikri Marhaeny
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas Airlangga, Surabaya, Indonesia
| | - Andang Miatmoko
- Department of Pharmaceutical Science, Faculty of Pharmacy, Universitas Airlangga, Surabaya, Indonesia
| | - Aniek Setiya Budiatin
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas Airlangga, Surabaya, Indonesia
| | - Chrismawan Ardianto
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas Airlangga, Surabaya, Indonesia
| | - Mahardian Rahmadi
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas Airlangga, Surabaya, Indonesia
| | - Yusuf Alif Pratama
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas Airlangga, Surabaya, Indonesia
| | - Muhammad Tahir
- Department of Pharmaceutical Science, Kulliyah of Pharmacy, International Islamic University Malaysia, Pahang, Malaysia
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Rosen CJ, Horowitz MC. Nutrient regulation of bone marrow adipose tissue: skeletal implications of weight loss. Nat Rev Endocrinol 2023; 19:626-638. [PMID: 37587198 PMCID: PMC10592027 DOI: 10.1038/s41574-023-00879-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/19/2023] [Indexed: 08/18/2023]
Abstract
Adipose tissue is a dynamic component of the bone marrow, regulating skeletal remodelling and secreting paracrine and endocrine factors that can affect haematopoiesis, as well as potentially nourishing the bone marrow during periods of stress. Bone marrow adipose tissue is regulated by multiple factors, but particularly nutrient status. In this Review, we examine how bone marrow adipocytes originate, their function in normal and pathological states and how bone marrow adipose tissue modulates whole-body homoeostasis through actions on bone cells, haematopoietic stem cells and extra-medullary adipocytes during nutritional challenges. We focus on both rodent models and human studies to help understand the unique marrow adipocyte, its response to the external nutrient environment and its effects on the skeleton. We finish by addressing some critical questions that to date remain unanswered.
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Affiliation(s)
| | - Mark C Horowitz
- Department of Orthopaedics and Rehabilitation, Yale University School of Medicine, New Haven, CT, USA.
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Age and gender differences in vertebral bone marrow adipose tissue and bone mineral density, based on MRI and quantitative CT. Eur J Radiol 2023; 159:110669. [PMID: 36608598 DOI: 10.1016/j.ejrad.2022.110669] [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: 02/15/2022] [Revised: 12/20/2022] [Accepted: 12/22/2022] [Indexed: 12/25/2022]
Abstract
PURPOSE To investigate the age and gender differences in vertebral bone marrow adipose tissue (BMAT) and volumetric bone mineral density (vBMD). METHOD A total of 427 healthy adults, including 175 males (41 %) and 252 females (59 %) with an age range of 21-82 years, underwent MRI and quantitative CT examinations of the lumbar spine (L2-L4), and the corresponding BMAT and vBMD values were measured. The age-related progressions of BMAT and vBMD in men and women were evaluated and compared. RESULTS In males, vertebral BMAT rose gradually throughout life, while in females, BMAT increased sharply between 41 and 60 years of age. In participants aged < 40 years, BMAT was greater in males compared to females (p ≤ 0.01), while after the age of 60, BMAT was higher in females (p < 0.05). In males, vBMD decreased gradually with age, while in females, there was a sharp decrease in vBMD after the age of 40 years. At age of 31-40 years, vBMD was higher in females (P < 0.002), while at age > 60 years, vBMD was higher in males (61-70 years, P < 0.01; > 70 years, P = 0.02). CONCLUSIONS We found significant age and gender differences in lumbar BMAT and vBMD. These findings will help to improve our understanding of the interaction between bone marrow fat content and bone mineral density in the ageing process.
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Beekman KM, Duque G, Corsi A, Tencerova M, Bisschop PH, Paccou J. Osteoporosis and Bone Marrow Adipose Tissue. Curr Osteoporos Rep 2023; 21:45-55. [PMID: 36534306 DOI: 10.1007/s11914-022-00768-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/17/2022] [Indexed: 12/23/2022]
Abstract
PURPOSE OF REVIEW This review focuses on the recent findings regarding bone marrow adipose tissue (BMAT) concerning bone health. We summarize the variations in BMAT in relation to age, sex, and skeletal sites, and provide an update on noninvasive imaging techniques to quantify human BMAT. Next, we discuss the role of BMAT in patients with osteoporosis and interventions that affect BMAT. RECENT FINDINGS There are wide individual variations with region-specific fluctuation and age- and gender-specific differences in BMAT content and composition. The Bone Marrow Adiposity Society (BMAS) recommendations aim to standardize imaging protocols to increase comparability across studies and sites. Water-fat imaging (WFI) seems an accurate and efficient alternative for spectroscopy (1H-MRS). Most studies indicate that greater BMAT is associated with lower bone mineral density (BMD) and a higher prevalence of vertebral fractures. The proton density fat fraction (PDFF) and changes in lipid composition have been associated with an increased risk of fractures independently of BMD. Therefore, PDFF and lipid composition could potentially be future imaging biomarkers for assessing fracture risk. Evidence of the inhibitory effect of osteoporosis treatments on BMAT is still limited to a few randomized controlled trials. Moreover, results from the FRAME biopsy sub-study highlight contradictory findings on the effect of the sclerostin antibody romosozumab on BMAT. Further understanding of the role(s) of BMAT will provide insight into the pathogenesis of osteoporosis and may lead to targeted preventive and therapeutic strategies.
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Affiliation(s)
- Kerensa M Beekman
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Gustavo Duque
- Department of Medicine and Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Alessandro Corsi
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Michaela Tencerova
- Molecular Physiology of Bone, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Peter H Bisschop
- Department of Endocrinology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Julien Paccou
- Department of Rheumatology, MABLaB ULR 4490, CHU Lille, University Lille, Lille, France.
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Nguyen-Khac V, Bonnet-Lebrun A, Skalli W, Adamsbaum C, Linglart A, Wicart P. Changes in adipose bone marrow and bone morphology in X-linked hypophosphatemic rickets. Orthop Traumatol Surg Res 2022; 109:103529. [PMID: 36565743 DOI: 10.1016/j.otsr.2022.103529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 08/01/2022] [Accepted: 08/26/2022] [Indexed: 12/24/2022]
Abstract
INTRODUCTION X-linked hypophosphatemic (XLH) rickets causes significant bone deformities in the lower limbs resulting from a bone mineralization defect. According to Frost's Mechanostat theory, compensatory modeling of the bones takes place during increased mechanical loads. In addition, mechanical stimuli modulate the differentiation of mesenchymal stem cells; common precursors to bone marrow adipocytes and osteoblasts. HYPOTHESIS Bone deformities of the lower limbs lead to increased femoral bone mass and decreased fatty infiltration of the bone marrow (FIBM) in children with XLH rickets compared to a control group. PATIENTS AND METHODS Eleven children (10.3years [6-17]) with XLH rickets and 22 healthy children (10.2years [5-15.5]) underwent lower limb Magnetic Resonance Imaging. A calculation of FIBM was performed at the mid-femur, as well as a calculation of the total bone cross-sectional area (CSA), the cortical CSA, the anteroposterior and mediolateral axes of the femur, bone marrow and the thickness of the femoral cortices. RESULTS Total bone CSA, total cortical CSA and bone marrow CSA were higher in the XLH group than in the control group (p<0.05). The mid-lateral diameters of the femur and bone marrow were more elongated than those of the control group (p<0.001). Only the anterior cortex was thinned in the XLH group (p=0.001), while there was no difference with the control group for the posterior, medial and lateral cortices. The total percentage of FIBM was 72.81% [±3.95] and 77.4% [±5.52] for the XLH and control groups respectively (p<0.001). DISCUSSION The increase in bone mass in the XLH population reflects an adaptation of bone tissue to the bone deformities present in this pathology. The decrease in FIBM indicates a lower risk of osteoporosis in the XLH population and may constitute a new monitoring parameter in this pathology. LEVEL OF STUDY III; Case-control study.
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Affiliation(s)
| | - Aurore Bonnet-Lebrun
- ENSAM, Institut de Biomécanique Humaine G.-Charpark, 151, Boulevard de l'Hôpital, 75013 Paris, France
| | - Wafa Skalli
- ENSAM, Institut de Biomécanique Humaine G.-Charpark, 151, Boulevard de l'Hôpital, 75013 Paris, France
| | - Catherine Adamsbaum
- Hôpital Bicêtre, AP-HP, 78, rue du Général-Leclerc, 94270 Le Kremlin-Bicêtre, France
| | - Agnès Linglart
- Hôpital Bicêtre, AP-HP, 78, rue du Général-Leclerc, 94270 Le Kremlin-Bicêtre, France
| | - Philippe Wicart
- Hospital Necker-Enfants-Malades, AP-HP, 149, rue de Sèvre, 75015 Paris, France
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Dang T, Faje AT, Meenaghan E, Bredella MA, Bouxsein ML, Klibanski A, Fazeli PK. Bone marrow adipose tissue is associated with fracture history in anorexia nervosa. Osteoporos Int 2022; 33:2619-2627. [PMID: 35999286 PMCID: PMC9940017 DOI: 10.1007/s00198-022-06527-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 08/05/2022] [Indexed: 02/06/2023]
Abstract
Although bone mineral density (BMD) is decreased and fracture risk increased in anorexia nervosa, BMD does not predict fracture history in this disorder. We assessed BMD, bone microarchitecture, and bone marrow adipose tissue (BMAT) in women with anorexia nervosa and found that only BMAT was associated with fracture history. INTRODUCTION Anorexia nervosa (AN) is a psychiatric disorder characterized by low body weight, low BMD, and increased risk of fracture. Although BMD is reduced and fracture risk elevated, BMD as assessed by DXA does not distinguish between individuals with versus those without prior history of fracture in AN. Despite having decreased peripheral adipose tissue stores, individuals with AN have enhanced bone marrow adipose tissue (BMAT), which is inversely associated with BMD. Whether increased BMAT is associated with fracture in AN is not known. METHODS We conducted a cross-sectional study in 62 premenopausal women, including 34 with AN and 28 normal-weight women of similar age. Fracture history was collected during patient interviews and BMD measured by DXA, BMAT by 1H-MRS, and parameters of bone microarchitecture by HR-pQCT. RESULTS Sixteen women (47.1%) with AN reported prior history of fracture compared to 11 normal-weight women (39.3%, p = 0.54). In the entire group and also the subset of women with AN, there were no significant differences in BMD or parameters of bone microarchitecture in women with prior fracture versus those without. In contrast, women with AN with prior fracture had greater BMAT at the spine and femur compared to those without (p = 0.01 for both). CONCLUSION In contrast to BMD and parameters of bone microarchitecture, BMAT is able to distinguish between women with AN with prior fracture compared to those without. Prospective studies will be necessary to understand BMAT's potential pathophysiologic role in the increased fracture risk in AN.
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Affiliation(s)
- T Dang
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA, USA
| | - A T Faje
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - E Meenaghan
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA, USA
| | - M A Bredella
- Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital, Boston, MA, USA
| | - M L Bouxsein
- Harvard Medical School, Boston, MA, USA
- Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Boston, MA, USA
- Endocrine Unit, Massachusetts General Hospital, Boston, MA, USA
| | - A Klibanski
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - P K Fazeli
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA, USA.
- Harvard Medical School, Boston, MA, USA.
- Neuroendocrinology Unit, Division of Endocrinology and Metabolism, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
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Li Y, Li F. Mechanism and Prospect of Gastrodin in Osteoporosis, Bone Regeneration, and Osseointegration. Pharmaceuticals (Basel) 2022; 15:1432. [PMID: 36422561 PMCID: PMC9698149 DOI: 10.3390/ph15111432] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/08/2022] [Accepted: 11/16/2022] [Indexed: 11/14/2023] Open
Abstract
Gastrodin, a traditional Chinese medicine ingredient, is widely used to treat vascular and neurological diseases. However, recently, an increasing number of studies have shown that gastrodin has anti-osteoporosis effects, and its mechanisms of action include its antioxidant effect, anti-inflammatory effect, and anti-apoptotic effect. In addition, gastrodin has many unique advantages in promoting bone healing in tissue engineering, such as inducing high hydrophilicity in the material surface, its anti-inflammatory effect, and pro-vascular regeneration. Therefore, this paper summarized the effects and mechanisms of gastrodin on osteoporosis and bone regeneration in the current research. Here we propose an assumption that the use of gastrodin in the surface loading of oral implants may greatly promote the osseointegration of implants and increase the success rate of implants. In addition, we speculated on the potential mechanisms of gastrodin against osteoporosis, by affecting actin filament polymerization, renin-angiotensin system (RAS) and ferroptosis, and proposed that the potential combination of gastrodin with Mg2+, angiotensin type 2 receptor blockers or artemisinin may greatly inhibit osteoporosis. The purpose of this review is to provide a reference for more in-depth research and application of gastrodin in the treatment of osteoporosis and implant osseointegration in the future.
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Affiliation(s)
| | - Fenglan Li
- Department of Prosthodontics, Shanxi Provincial People’s Hospital, Shanxi Medical University, Taiyuan 030000, China
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11
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Jeong SH, Hong N, Lee HS, Han S, Lee YG, Lee Y, Rhee Y, Sohn YH, Lee PH. Low skull bone density is associated with poor motor prognosis in women with Parkinson’s disease. Front Aging Neurosci 2022; 14:1053786. [DOI: 10.3389/fnagi.2022.1053786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 10/27/2022] [Indexed: 11/17/2022] Open
Abstract
Parkinson’s disease (PD) and osteoporosis are degenerative diseases that have shared pathomechanisms. To investigate the associations of skull bone density with nigrostriatal dopaminergic degeneration and longitudinal motor prognosis in female patients with PD. We analyzed the data of 260 drug-naïve female PD patients aged ≥50 years old who were followed-up for ≥3 years after their first visit to the clinic with baseline dopamine transporter (DAT) imaging. We measured skull bone density as a surrogate marker for systemic bone loss by calculating the Hounsfield unit (HU) in computed tomography scans. A Cox proportional hazard model was built to compare the rates of levodopa-induced dyskinesia (LID) or wearing-off according to skull HU. Longitudinal changes in levodopa-equivalent dose (LED) during a 3-year follow-up were assessed using a linear mixed model. A lower skull HU was associated with lower baseline DAT availability in striatal subregions; however, this relationship was not significant after adjusting for age, disease duration, body mass index, and white matter hyperintensities. After adjusting for confounding factors, a lower skull HU was significantly associated with an increased risk of LID development (hazard ratio = 1.660 per 1 standard deviation decrease, p = 0.007) and wearing-off (hazard ratio = 1.613, p = 0.016) in younger (<67 years) but not in older patients. Furthermore, a lower skull HU was associated with a steeper increase in LED during follow-up in younger patients only (β = –21.99, p < 0.001). This study suggests that baseline skull bone density would be closely linked to motor prognosis in drug naïve women with PD.
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Tolonen S, Juonala M, Fogelholm M, Pahkala K, Laaksonen M, Kähönen M, Sievänen H, Viikari J, Raitakari O. Dietary Saturated Fat and Bone Health in Young Adults: The Young Finns Cohort. Calcif Tissue Int 2022; 111:419-429. [PMID: 35896727 PMCID: PMC9474366 DOI: 10.1007/s00223-022-01008-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 07/06/2022] [Indexed: 11/15/2022]
Abstract
Previous studies suggest that saturated fat (SFA) intake may negatively impact on bone. However, few human studies on the topic exist. Women and men aged 31-46 years from the Cardiovascular Risk in Young Finns study attended the peripheral quantitative computed tomography and ultrasound bone measurements in 2008 (n = 1884-1953, ~ 56% women). In addition, fracture diagnoses in 1980-2018 were searched for the national health care registers and 431 participants had at least one fracture. Food consumption was gathered with the 48-h dietary recall interviews and food frequency questionnaire in 1980-2007. In the present study, radial, tibial, and calcaneal bone traits, and fractures were examined relative to the long-term intake of SFA. No consistent associations were seen between bone outcomes and SFA intake that would have replicated in both women and men. The only evidence for differential distributions was seen in cortical density and cortical-to-total area ratio at the radial shaft, and speed of sound at the calcaneus, which were 0.1-0.4% higher in women in the lowest tertile of SFA intake compared with the highest tertile. In addition, among men, the odds ratio (OR) of fractures was greater in the second (OR 1.86, 95% confidence interval (CI) 1.03-3.33) and third tertile of SFA intake (OR 2.45, 95% CI 1.38-4.36) compared with the lowest tertile, independently of many risk factors of osteoporosis. In this observational study, we found no robust evidence of the associations of dietary long-term SFA intake with bone outcomes. Therefore, additional studies are needed to confirm the association of dietary SFA with bone health in humans.
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Affiliation(s)
- S Tolonen
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland.
| | - M Juonala
- Department of Medicine, University of Turku and Turku University Hospital, Turku, Finland
- Murdoch Children's Research Institute, Parkville, VIC, Australia
| | - M Fogelholm
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - K Pahkala
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland
- Centre for Population Health Research, University of Turku and Turku University Hospital, Turku, Finland
| | - M Laaksonen
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - M Kähönen
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - H Sievänen
- The UKK Institute for Health Promotion Research, Tampere, Finland
| | - J Viikari
- Department of Medicine, University of Turku and Turku University Hospital, Turku, Finland
| | - O Raitakari
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland
- Centre for Population Health Research, University of Turku and Turku University Hospital, Turku, Finland
- Department of Clinical Physiology and Nuclear Medicine, Turku University Hospital, Turku, Finland
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13
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Rodrigues J, Wang YF, Singh A, Hendriks M, Dharmalingam G, Cohen-Solal M, Kusumbe A, Ramasamy SK. Oestrogen enforces the integrity of blood vessels in the bone during pregnancy and menopause. NATURE CARDIOVASCULAR RESEARCH 2022; 1:918-932. [PMID: 36531334 PMCID: PMC7613952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Figures] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
The mammalian skeletal system shows sex differences in structure, functions, ageing and disease incidences. The role of blood vessels in physiological, regenerative and pathological bone functions indicates the requisite to understanding their sex specificity. Here, we find oestrogen regulates blood vessel physiology during pregnancy and menopause through oestrogen receptor alpha (ERα) and G-protein coupled oestrogen receptor-1 (Gper1) but not ERβ-dependent signalling in mice. Oestrogen regulates BECs' lipid use and promotes lipolysis of adipocytes and FA uptake from the microenvironment. Low oestrogen conditions skew endothelial FA metabolism to accumulate lipid peroxides (LPO), leading to vascular ageing. High ferrous ion levels in female BECs intensify LPO accumulation and accelerate the ageing process. Importantly, inhibiting LPO generation using liproxstatin-1 in aged mice significantly improved bone heath. Thus, our findings illustrate oestrogen's effects on BECs and suggest LPO targeting could be an efficient strategy to manage blood and bone health in females.
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Affiliation(s)
- Julia Rodrigues
- Institute of Clinical Sciences, Imperial College London, London W12 0NN, UK
- MRC London Institute of Medical Sciences, Imperial College London, London W12 0NN, UK
| | - Yi-Fang Wang
- Bioinformatics and computing Facility, MRC London Institute of Medical Sciences, Imperial College London, UK
| | - Amit Singh
- Tissue and Tumor Microenvironments Group, MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- Heidelberg University Biochemistry Center, University of Heidelberg, Heidelberg D-69120, Germany
| | - Michelle Hendriks
- Institute of Clinical Sciences, Imperial College London, London W12 0NN, UK
- MRC London Institute of Medical Sciences, Imperial College London, London W12 0NN, UK
| | - Gopuraja Dharmalingam
- Bioinformatics and computing Facility, MRC London Institute of Medical Sciences, Imperial College London, UK
| | - Martine Cohen-Solal
- Bioscar Inserm U1132 and Université de Paris, Hospital Lariboisiere, Paris, France
| | - Anjali Kusumbe
- Tissue and Tumor Microenvironments Group, MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Saravana K. Ramasamy
- Institute of Clinical Sciences, Imperial College London, London W12 0NN, UK
- MRC London Institute of Medical Sciences, Imperial College London, London W12 0NN, UK
- Author for correspondence: Saravana K. Ramasamy, MRC London Institute of Medical Sciences, Imperial College London, Du Cane Road, London W12 0NN, UK, Phone: +44 20 838 31182; Fax: +44 20 838 38303
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14
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Bretherton I, Ghasem-Zadeh A, Leemaqz SY, Seeman E, Wang X, McFarlane T, Spanos C, Grossmann M, Zajac JD, Cheung AS. Bone Microarchitecture in Transgender Adults: A Cross-Sectional Study. J Bone Miner Res 2022; 37:643-648. [PMID: 34981566 PMCID: PMC9305455 DOI: 10.1002/jbmr.4497] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 11/23/2021] [Accepted: 12/22/2021] [Indexed: 11/06/2022]
Abstract
Gender-affirming hormone therapy aligns physical characteristics with an individual's gender identity, but sex hormones regulate bone remodeling and influence bone morphology. We hypothesized that trans men receiving testosterone have compromised bone morphology because of suppression of ovarian estradiol production, whereas trans women receiving estradiol, with or without anti-androgen therapy, have preserved bone microarchitecture. We compared distal radial and tibial microarchitecture using high-resolution peripheral quantitative computed tomography images in a cross-sectional study of 41 trans men with 71 cis female controls, and 40 trans women with 51 cis male controls. Between-group differences were expressed as standardized deviations (SD) from the mean in age-matched cisgender controls with 98% confidence intervals adjusted for cross-sectional area (CSA) and multiple comparisons. Relative to cis women, trans men had 0.63 SD higher total volumetric bone mineral density (vBMD; both p = 0.01). Cortical vBMD and cortical porosity did not differ, but cortices were 1.11 SD thicker (p < 0.01). Trabeculae were 0.38 SD thicker (p = 0.05) but otherwise no different. Compared with cis men, trans women had 0.68 SD lower total vBMD (p = 0.01). Cortical vBMD was 0.70 SD lower (p < 0.01), cortical thickness was 0.51 SD lower (p = 0.04), and cortical porosity was 0.70 SD higher (p < 0.01). Trabecular bone volume (BV/TV) was 0.77 SD lower (p < 0.01), with 0.57 SD fewer (p < 0.01) and 0.30 SD thicker trabeculae (p = 0.02). There was 0.56 SD greater trabecular separation (p = 0.01). Findings at the distal radius were similar. Contrary to each hypothesis, bone microarchitecture was not compromised in trans men, perhaps because aromatization of administered testosterone prevented bone loss. Trans women had deteriorated bone microarchitecture either because of deficits in microstructure before treatment or because the estradiol dosage was insufficient to offset reduced aromatizable testosterone. Prospective studies are needed to confirm these findings. © 2022 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)
- Ingrid Bretherton
- Department of Medicine, The University of Melbourne, Heidelberg, Australia.,Endocrinology (Austin Health), The University of Melbourne, Heidelberg, Australia
| | - Ali Ghasem-Zadeh
- Department of Medicine, The University of Melbourne, Heidelberg, Australia
| | - Shalem Y Leemaqz
- College of Medicine and Public Health, Flinders University, Adelaide, Australia
| | - Ego Seeman
- Department of Medicine, The University of Melbourne, Heidelberg, Australia.,Endocrinology (Austin Health), The University of Melbourne, Heidelberg, Australia
| | - Xiaofang Wang
- Department of Medicine, The University of Melbourne, Heidelberg, Australia
| | - Thomas McFarlane
- Department of Medicine, The University of Melbourne, Heidelberg, Australia
| | - Cassandra Spanos
- Department of Medicine, The University of Melbourne, Heidelberg, Australia
| | - Mathis Grossmann
- Department of Medicine, The University of Melbourne, Heidelberg, Australia.,Endocrinology (Austin Health), The University of Melbourne, Heidelberg, Australia
| | - Jeffrey D Zajac
- Department of Medicine, The University of Melbourne, Heidelberg, Australia.,Endocrinology (Austin Health), The University of Melbourne, Heidelberg, Australia
| | - Ada S Cheung
- Department of Medicine, The University of Melbourne, Heidelberg, Australia.,Endocrinology (Austin Health), The University of Melbourne, Heidelberg, Australia
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15
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Beekman KM, Regenboog M, Nederveen AJ, Bravenboer N, den Heijer M, Bisschop PH, Hollak CE, Akkerman EM, Maas M. Gender- and Age-Associated Differences in Bone Marrow Adipose Tissue and Bone Marrow Fat Unsaturation Throughout the Skeleton, Quantified Using Chemical Shift Encoding-Based Water-Fat MRI. Front Endocrinol (Lausanne) 2022; 13:815835. [PMID: 35574007 PMCID: PMC9094426 DOI: 10.3389/fendo.2022.815835] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 03/17/2022] [Indexed: 01/17/2023] Open
Abstract
Bone marrow adipose tissue (BMAT) is a dynamic tissue which is associated with osteoporosis, bone metastasis, and primary bone tumors. The aim of this study is to determine region-specific variations and age- and gender-specific differences in BMAT and BMAT composition in healthy subjects. In this cross-sectional study, we included 40 healthy subjects (26 male: mean age 49 years, range 22-75 years; 14 female: mean age 50 years, range 29-71) and determined the bone marrow signal fat fraction and bone marrow unsaturation in the spine (C3-L5), pelvis, femora, and tibiae using chemical shift encoding-based water-fat imaging (WFI) with multiple gradient echoes (mGRE). Regions of interest covered the individual vertebral bodies, pelvis and proximal epimetaphysis, diaphysis, and distal epimetaphysis of the femur and tibia. The spinal fat fraction increased from cervical to lumbar vertebral bodies (mean fat fraction ( ± SD or (IQR): cervical spine 0.37 ± 0.1; thoracic spine 0.41 ± 0.08. lumbar spine 0.46 ± 0.01; p < 0.001). The femoral fat fraction increased from proximal to distal (proximal 0.78 ± 0.09; diaphysis 0.86 (0.15); distal 0.93 ± 0.02; p < 0.001), while within the tibia the fat fraction decreased from proximal to distal (proximal 0.92 ± 0.01; diaphysis 0.91 (0.02); distal 0.90 ± 0.01; p < 0.001). In female subjects, age was associated with fat fraction in the spine, pelvis, and proximal femur (ρ = 0.88 p < 0.001; ρ = 0.87 p < 0.001; ρ = 0.63 p = 0.02; ρ = 0.74 p = 0.002, respectively), while in male subjects age was only associated with spinal fat fraction (ρ = 0.40 p = 0.04). Fat fraction and unsaturation were negatively associated within the spine (r = -0.40 p = 0.01), while in the extremities fat fraction and unsaturation were positively associated (distal femur: r = 0.42 p = 0.01; proximal tibia: r = 0.47, p = 0.002; distal tibia: r = 0.35 p = 0.03), both independent of age and gender. In conclusion, we confirm the distinct, age- and gender-dependent, distribution of BMAT throughout the human skeleton and we show that, contradicting previous animal studies, bone marrow unsaturation in human subjects is highest within the axial skeleton compared to the appendicular skeleton. Furthermore, we show that BMAT unsaturation was negatively correlated with BMAT within the spine, while in the appendicular skeleton, BMAT and BMAT unsaturation were positively associated.
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Affiliation(s)
- Kerensa M. Beekman
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, Amsterdam Movement Sciences, University of Amsterdam, Amsterdam, Netherlands
- Department of Endocrinology, Amsterdam University Medical Centers, Amsterdam Movement Sciences, Vrije Universiteit University, Amsterdam, Netherlands
| | - Martine Regenboog
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, Amsterdam Movement Sciences, University of Amsterdam, Amsterdam, Netherlands
- Department of Endocrinology and Metabolism, Amsterdam University Medical Centers, Amsterdam Movement Sciences, University of Amsterdam, Amsterdam, Netherlands
| | - Aart J. Nederveen
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, Amsterdam Movement Sciences, University of Amsterdam, Amsterdam, Netherlands
| | - Nathalie Bravenboer
- Department of Clinical Chemistry, Research Laboratory Bone and Calcium Metabolism, Amsterdam University Medical Centers, Amsterdam Movement Sciences, Vrije Universiteit University, Amsterdam, Netherlands
- Department of Internal Medicine, Leiden University Medical Center, Leiden, Netherlands
| | - Martin den Heijer
- Department of Endocrinology, Amsterdam University Medical Centers, Amsterdam Movement Sciences, Vrije Universiteit University, Amsterdam, Netherlands
| | - Peter H. Bisschop
- Department of Endocrinology and Metabolism, Amsterdam University Medical Centers, Amsterdam Movement Sciences, University of Amsterdam, Amsterdam, Netherlands
| | - Carla E. Hollak
- Department of Endocrinology and Metabolism, Amsterdam University Medical Centers, Amsterdam Movement Sciences, University of Amsterdam, Amsterdam, Netherlands
| | - Erik M. Akkerman
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, Amsterdam Movement Sciences, University of Amsterdam, Amsterdam, Netherlands
| | - Mario Maas
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, Amsterdam Movement Sciences, University of Amsterdam, Amsterdam, Netherlands
- *Correspondence: Mario Maas,
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16
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Wan T, Zhu Y, Han Q, Liu L. Changes in Vertebral Marrow Fat Fraction Using 3D Fat Analysis & Calculation Technique Imaging Sequence in Aromatase Inhibitor-Treated Breast Cancer Women. Front Endocrinol (Lausanne) 2022; 13:931231. [PMID: 35813643 PMCID: PMC9259863 DOI: 10.3389/fendo.2022.931231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 05/18/2022] [Indexed: 11/13/2022] Open
Abstract
Aromatase inhibitor (AI) is a cornerstone drug for postmenopausal women with estrogen receptor-positive early-stage breast cancer. Fat-bone interactions within the bone marrow milieu are growing areas of scientific interest. Although AI treatment could lead to deterioration of the skeleton, the association between AI medication and subsequent marrow adiposity remains elusive. A total of 40 postmenopausal, early-staged, and hormone receptor-positive breast cancer patients who underwent treatment with adjuvant AIs and 40 matched controls were included. Marrow proton density fat fraction (PDFF) at the L1-L4 vertebral bodies using 3D Fat Analysis & Calculation Technique imaging (FACT) sequence at 3.0T, bone mineral density (BMD) by dual-energy X-ray absorptiometry, and serum bone turnover biomarkers were determined at baseline and at 6 and 12 months. We found that, in comparison to baseline, an increase of type I collagen cross-linked telopeptide was detected at 12 months (P <0.05). From baseline to 12 months, the PDFF measured using FACT was greatly increased. At 12 months, the median percent change of PDFF (4.9% vs. 0.9%, P <0.05) was significantly different between the AI treatments and controls. The same trend was observed for the marrow PDFF at 6 months relative to the respective values at baseline. Although BMD values were significantly reduced after 12 months in AI-treated women, changes in BMD vs. baseline condition were not significantly different between the AI-treated and control groups [Δ BMD -1.6% to -1.8% vs. -0.3% to -0.6%, respectively, P > 0.05]. In the AI-treated group, Δ PDFF was associated with Δ BMD at the lumbar spine (r = -0.585, P < 0.001), but not in the controls. Taken together, over a 12-month period, spinal marrow fat content assessed with FACT sequence significantly increased in postmenopausal women with hormone-receptor-positive breast cancer receiving AI treatment.
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Affiliation(s)
- Taihu Wan
- Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Yuhang Zhu
- Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Qinghe Han
- Radiology of Department, The Second Hospital of Jilin University, Changchun, China
| | - Lin Liu
- Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun, China
- *Correspondence: Lin Liu,
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17
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Ali D, Tencerova M, Figeac F, Kassem M, Jafari A. The pathophysiology of osteoporosis in obesity and type 2 diabetes in aging women and men: The mechanisms and roles of increased bone marrow adiposity. Front Endocrinol (Lausanne) 2022; 13:981487. [PMID: 36187112 PMCID: PMC9520254 DOI: 10.3389/fendo.2022.981487] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
Osteoporosis is defined as a systemic skeletal disease characterized by decreased bone mass and micro-architectural deterioration leading to increased fracture risk. Osteoporosis incidence increases with age in both post-menopausal women and aging men. Among other important contributing factors to bone fragility observed in osteoporosis, that also affect the elderly population, are metabolic disturbances observed in obesity and Type 2 Diabetes (T2D). These metabolic complications are associated with impaired bone homeostasis and a higher fracture risk. Expansion of the Bone Marrow Adipose Tissue (BMAT), at the expense of decreased bone formation, is thought to be one of the key pathogenic mechanisms underlying osteoporosis and bone fragility in obesity and T2D. Our review provides a summary of mechanisms behind increased Bone Marrow Adiposity (BMA) during aging and highlights the pre-clinical and clinical studies connecting obesity and T2D, to BMA and bone fragility in aging osteoporotic women and men.
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Affiliation(s)
- Dalia Ali
- Department of Molecular Endocrinology, KMEB, University of Southern Denmark and Odense University Hospital, Odense, Denmark
- *Correspondence: Dalia Ali, ; Abbas Jafari,
| | - Michaela Tencerova
- Laboratory of Molecular Physiology of Bone, Institute of Physiology of the Czech Academy of Sciences, Prague, Czechia
| | - Florence Figeac
- Department of Molecular Endocrinology, KMEB, University of Southern Denmark and Odense University Hospital, Odense, Denmark
| | - Moustapha Kassem
- Department of Molecular Endocrinology, KMEB, University of Southern Denmark and Odense University Hospital, Odense, Denmark
| | - Abbas Jafari
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
- *Correspondence: Dalia Ali, ; Abbas Jafari,
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18
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Shim KS, Gu DR, Hwang YH, Yang H, Ryuk JA, Ha H. Water Extract of Fritillariae thunbergii Bulbus Inhibits RANKL-Mediated Osteoclastogenesis and Ovariectomy-Induced Trabecular Bone Loss. Molecules 2021; 27:molecules27010169. [PMID: 35011398 PMCID: PMC8746409 DOI: 10.3390/molecules27010169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/20/2021] [Accepted: 12/24/2021] [Indexed: 12/03/2022] Open
Abstract
Fritillariae thunbergii bulbus has been widely used to treat symptoms of coughs and airway congestion in the chest due to pathological colds and damp phlegm in traditional Chinese medicine. Despite its long history of traditional use, its pharmacological activities on osteoclastogenesis and osteoporosis have not been evaluated. This study investigated the effects of the water extract of Fritillariae thunbergii bulbus (WEFT) on osteoclast differentiation in bone marrow-derived macrophage cells and on ovariectomy (OVX)-induced osteoporosis in mice. We found that WEFT significantly inhibited osteoclastogenesis by downregulating the receptor activator of the NF-κB ligand (RANKL) signaling-induced nuclear factor of activated T-cells cytoplasmic 1 (NFATc1) expression. In an OVX-induced osteoporosis model, WEFT significantly prevented the OVX-induced trabecular loss of femurs, accompanied by a reduction in fat accumulation in the bone marrow and liver. In addition, WEFT significantly prevented weight gain and gonadal fat gain without recovering uterine atrophy. Using ultrahigh-performance liquid chromatography-tandem mass spectrometry, seven alkaloids (peimisine glucoside, yibeissine, peiminoside, sipeimine-glucoside, peimisine, peimine, and peiminine) were identified in WEFT. The results of this study suggest that WEFT can be a potential pharmacological candidate to reduce menopausal osteoporosis and menopause-related symptoms, such as fat accumulation.
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Affiliation(s)
- Ki-Shuk Shim
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Daejeon 34054, Korea; (K.-S.S.); (D.-R.G.); (Y.-H.H.); (H.Y.); (J.-A.R.)
| | - Dong-Ryun Gu
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Daejeon 34054, Korea; (K.-S.S.); (D.-R.G.); (Y.-H.H.); (H.Y.); (J.-A.R.)
| | - Youn-Hwan Hwang
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Daejeon 34054, Korea; (K.-S.S.); (D.-R.G.); (Y.-H.H.); (H.Y.); (J.-A.R.)
- Korean Convergence Medicine Major KIOM, University of Science & Technology (UST), Daejeon 34054, Korea
| | - Hyun Yang
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Daejeon 34054, Korea; (K.-S.S.); (D.-R.G.); (Y.-H.H.); (H.Y.); (J.-A.R.)
| | - Jin-Ah Ryuk
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Daejeon 34054, Korea; (K.-S.S.); (D.-R.G.); (Y.-H.H.); (H.Y.); (J.-A.R.)
| | - Hyunil Ha
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Daejeon 34054, Korea; (K.-S.S.); (D.-R.G.); (Y.-H.H.); (H.Y.); (J.-A.R.)
- Correspondence: ; Tel.: +82-42-868-9367
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19
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Cui FZ, Yao QQ, Cui JL, Wei W, Duan LS, Yu H. The signal intensity characteristics of normal bone marrow in diffusion weighted imaging at various menstrual status women. Eur J Radiol 2021; 143:109938. [PMID: 34488010 DOI: 10.1016/j.ejrad.2021.109938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 08/23/2021] [Accepted: 08/25/2021] [Indexed: 11/20/2022]
Abstract
PURPOSE Diffuse hyperintensities of the bone marrow in whole-body diffusion-weighted (DW) imaging (DWI) have been encountered more frequently in females aged 21-50 compared to elder females or men. Therefore, we aimed to visually evaluate DWI among pre-, peri- and postmenopausal women and to verify whether it correlates also quantitatively with hormonal status. METHOD The prospective study was approved by our institutional review board and informed consent was obtained in a total of 70 healthy premenopausal, perimenopausal, and postmenopausal women aged 40-58 years from February 2017 to October 2017. The bone marrow DW imaging signal characteristics were visually evaluated in comparison to the erector spinae muscle. Imaging data were acquired using a 1.5 T MRI yielding signal intensity values from a DWI-pulse sequence (b-value of 800 s/mm2; apparent diffusion coefficient (ADC) maps from b-values of 0-800 s/mm2), and a T2 mapping sequence covering the L2-L4 lumbar vertebrae. Serous estradiol (E2), follicle stimulating hormone (FSH), and luteinizing hormone (LH) were measured through venous blood assay. The relationship of the mean DW signal intensity (SIDWI) with T2 values, female hormone level, and mean ADC were analyzed using Spearman's rho test. RESULTS The proportion of diffuse DWI hyperintensities of the bone marrow was significantly higher in premenopausal (91% (21/23)) women compared to peri- (75% (18/24)) and postmenopausal (8% (2/23)) women. A positive correlation was observed for the mean SIDWI (median [interquartile range], 47.33 [30.14]) and mean T2 (mean ± SD, 121.01 ± 13.54) (r = 0.438, p < 0.001) as well as for the mean SIDWI and E2 (median [interquartile range], 52.45 [92.78]) (r = 0.407, p < 0.001). A negative correlation was observed for the mean SIDWI and serous FSH (median [interquartile range], 15.55 [42.08]) as well as for the mean SIDWI and serous LH (median [interquartile range], 6.96 [31.06]) (r = -0.557, p < 0.001; r = -0.535, p < 0.001; respectively), but no significant correlation was found for mean SIDWI and mean ADC (mean ± SD, 599.36 ± 82.70) (r = 0.099, p = 0.415). A negative correlation was also encountered for the mean T2 values and serous FSH (r = -0.339, p = 0.004) as well as for the mean T2 values and serous LH (r = -0.281, p = 0.018). CONCLUSIONS The mean SIDWI correlates positively with mean T2 and serous E2 values, while there's no significant correlation with mean ADC, indicating that T2 shine-through effects might interfere with bone marrow signaling on DW images. Knowledge of the bone marrow signal characteristics changing in DW images in close relationship with menstrual status is essential to correctly interpret DWI in clinical practice.
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Affiliation(s)
- Feng-Zhen Cui
- Department of Radiology, The Third Hospital of Hebei Medical University, Hebei Province Biomechanical Key Laborary of Orthopedics, Shijiazhuang, Hebei, China
| | - Qiao-Qiao Yao
- Department of Radiology, The Third Hospital of Hebei Medical University, Hebei Province Biomechanical Key Laborary of Orthopedics, Shijiazhuang, Hebei, China
| | - Jian-Ling Cui
- Department of Radiology, The Third Hospital of Hebei Medical University, Hebei Province Biomechanical Key Laborary of Orthopedics, Shijiazhuang, Hebei, China.
| | - Wei Wei
- Department of Radiology, The Third Hospital of Hebei Medical University, Hebei Province Biomechanical Key Laborary of Orthopedics, Shijiazhuang, Hebei, China
| | - Li-Sha Duan
- Department of Radiology, The Third Hospital of Hebei Medical University, Hebei Province Biomechanical Key Laborary of Orthopedics, Shijiazhuang, Hebei, China
| | - Hong Yu
- Department of Radiology, The Third Hospital of Hebei Medical University, Hebei Province Biomechanical Key Laborary of Orthopedics, Shijiazhuang, Hebei, China
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20
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Andrade VFC, Besen D, Chula DC, Borba VZC, Dempster D, Moreira CA. Bone Marrow Adiposity in Premenopausal Women With Type 2 Diabetes With Observations on Peri-Trabecular Adipocytes. J Clin Endocrinol Metab 2021; 106:e3592-e3602. [PMID: 33974069 DOI: 10.1210/clinem/dgab322] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Indexed: 12/16/2022]
Abstract
CONTEXT No study has yet evaluated the relationships among bone marrow adiposity (BMA), bone histomorphometry (BH), and glycemic control in premenopausal women with type 2 diabetes (T2DM). OBJECTIVE We aimed to assess the effect of glycemic control on BMA, correlate the parameters of BH with BMA, and correlate BMA with the use of hypoglycemic agents and with bone mineral density (BMD). METHODS This was a cross-sectional study that evaluated 26 premenopausal women with T2DM who were divided into groups with HbA1c < 7% (good control [GC], n = 10) and HbA1c > 7% (poor control [PC], n = 16). BMA parameters (adipocyte number [Ad.N], total adipocyte perimeter [Ad.Pm], total adipocyte area [Ad.Ar], percentage adipocyte volume per marrow volume [Ad.V/Ma.V]) and peri-trabecular adipocyte number divided by bone surface (Ad.N/BS) were evaluated. BH static (bone volume fraction [BV/TV], osteoid thickness [O.Th], osteoid surface/bone surface [OS/BS]) and dynamic parameters and serum insulin-like growth factor-1 were measured. BMA data were compared between the GC and PC groups. Correlations were performed. RESULTS Ad.N, Ad.Pm, and Ad.Ar were higher in PC (all, P = 0.04). HbA1c correlated positively with Ad.N/BS (P < 0.01) and Ad.N/BS correlated negatively with O.Th (P < 0.01) and OS/BS (P = 0.02). Positive and negative correlations were observed between insulin and metformin use, respectively, with all adipocyte parameters except Ad.N/BS (P < 0.05). Structural parameters were negatively correlated with the BMA. BMD of the femoral neck (r = -549, P < 0.01) and total femur (r = -0.502, P < 0.01) were negatively correlated with Ad.V/Ma.V. CONCLUSION Poor glycemic control is associated with hyperplasia and hypertrophy of BMAs and with lower BV/TV. Ad.N/BS, a new BMA parameter, is correlated with HbA1c and negatively with O.Th. The use of insulin seems to stimulate the expansion of BMA while that of metformin has the opposite effect. These findings suggest that the increase in BMA may play a role in the T2DM bone disease; on the other hand, good glycemic control might help prevent it.
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Affiliation(s)
- Vicente F C Andrade
- Endocrine Division (SEMPR), Department of Internal Medicine, Federal University of Paraná, Curitiba, Paraná, 80030-110, Brazil
| | - Débora Besen
- Professor of Endocrinology, University of Southern Santa Catarina (Unisul), Palhoça, Santa Catarina, 88137-270, Brazil
| | - Domingos C Chula
- Nephrology Unit, Clinics Hospital of Federal University of Paraná, Curitiba, Paraná, 80030-110, Brazil
| | - Victória Z C Borba
- Endocrine Division (SEMPR), Department of Internal Medicine, Federal University of Paraná, Curitiba, Paraná, 80030-110, Brazil
| | - David Dempster
- Department of Pathology and Cell Biology, Columbia University, New York, NY 10032, USA
| | - Carolina Aguiar Moreira
- Endocrine Division (SEMPR), Department of Internal Medicine, Federal University of Paraná, Curitiba, Paraná, 80030-110, Brazil
- Laboratory PRO - section of bone histomorphometry, Fundação Pró-Renal, Curitiba, Paraná, 80030-110, Brazil
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Bone marrow adiposity inversely correlates with bone turnover in pediatric renal osteodystrophy. Bone Rep 2021; 15:101104. [PMID: 34337113 PMCID: PMC8318854 DOI: 10.1016/j.bonr.2021.101104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/30/2021] [Accepted: 07/02/2021] [Indexed: 11/23/2022] Open
Abstract
Bone marrow adiposity is associated with bone disease in the general population. Although chronic kidney disease (CKD) is associated with increased bone fragility, the correlation between marrow adiposity and bone health in CKD is unknown. We evaluated the relationship between bone marrow adipocytes and bone histomorphometry in 32 pediatric patients. We also evaluated the effects of growth hormone and calcitriol (1,25(OH)2D3)—two therapies commonly prescribed for pediatric bone disease—on marrow adiposity and bone histomorphometry. Finally, the adipogenic potential of primary human osteoblasts from CKD patients was assessed in vitro, both alone and in the presence of 1,25(OH)2D3. In cross-sectional analysis, marrow adipocyte number per tissue area (Adi.N/T.Ar) correlated with bone formation rate/bone surface (BFR/BS) in patients with high bone turnover (r = −0.55, p = 0.01) but not in those with low/normal bone turnover. Changes in bone formation rate correlated with changes Adi.N/T.Ar on repeat bone biopsy(r = −0.48, p = 0.02). In vitro, CKD and control osteoblasts had a similar propensity to transition into an adipocyte-like phenotype; 1,25(OH)2D3 had very little effect on this propensity. In conclusion, marrow adiposity correlates inversely with bone turnover in pediatric patients with high turnover renal osteodystrophy. The range of adiposity observed in pediatric patients with low/normal bone turnover is not explained by intrinsic changes to precursor cells or by therapies but may reflect the effects of circulating factors on bone cell health in this population. Marrow adipocyte numbers correlate with bone formation in high turnover renal osteodystrophy. Marrow adipocyte numbers do not correlate with osteoid accumulation in CKD. Circulating toxins may impair adipogenesis in low turnover osteodystrophy.
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22
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Beekman KM, Akkerman EM, Streekstra GJ, Veldhuis‐Vlug AG, Acherman Y, Gerdes VE, den Heijer M, Maas M, Bravenboer N, Bisschop PH. The Effect of Roux-en-Y Gastric Bypass on Bone Marrow Adipose Tissue and Bone Mineral Density in Postmenopausal, Nondiabetic Women. Obesity (Silver Spring) 2021; 29:1120-1127. [PMID: 33951317 PMCID: PMC8359834 DOI: 10.1002/oby.23171] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 02/07/2021] [Accepted: 03/03/2021] [Indexed: 12/22/2022]
Abstract
OBJECTIVES This study aimed to determine the effect of bariatric surgery-induced weight loss on bone marrow adipose tissue (BMAT) and bone mineral density (BMD) in postmenopausal, nondiabetic women. METHODS A total of 14 postmenopausal, nondiabetic women with obesity who were scheduled for laparoscopic Roux-en-Y gastric bypass surgery (RYGB) were included in this study. Vertebral bone marrow fat signal fraction was determined by quantitative chemical shift magnetic resonance imaging, and vertebral volumetric BMD (vBMD) was determined by quantitative computed tomography before surgery and 3 and 12 months after surgery. Data were analyzed by linear mixed model. RESULTS Body weight [mean (SD)] decreased after surgery from 108 (13) kg at baseline to 89 (12) kg at 3 months and 74 (11) kg at 12 months (P < 0.001). BMAT decreased after surgery from 51% (8%) at baseline to 50% (8%) at 3 months and 46% (7%) at 12 months (P = 0.004). vBMD decreased after surgery from 101 (26) mg/cm3 at baseline to 94 (28) mg/cm3 at 3 months (P = 0.003) and 94 (28) mg/cm3 at 12 months (P = 0.035). Changes in BMAT and vBMD were not correlated (ρ = -0.10 and P = 0.75). Calcium and vitamin D concentrations did not change after surgery. CONCLUSIONS RYGB decreases both BMAT (after 12 months) and vBMD (both after 3 months and 12 months) in postmenopausal, nondiabetic women. Changes in BMAT and vBMD were not correlated. These findings suggest that BMAT does not contribute to bone loss following RYGB.
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Affiliation(s)
- Kerensa M. Beekman
- Department of Radiology and Nuclear MedicineAmsterdam Movement SciencesAmsterdam University Medical CenterUniversity of AmsterdamAmsterdamthe Netherlands
- Department of EndocrinologyAmsterdam Movement SciencesAmsterdam University Medical CenterVrije University, AmsterdamAmsterdamthe Netherlands
| | - Erik M. Akkerman
- Department of Radiology and Nuclear MedicineAmsterdam Movement SciencesAmsterdam University Medical CenterUniversity of AmsterdamAmsterdamthe Netherlands
| | - Geert J. Streekstra
- Department of Radiology and Nuclear MedicineAmsterdam Movement SciencesAmsterdam University Medical CenterUniversity of AmsterdamAmsterdamthe Netherlands
- Department of Biomedical Engineering and PhysicsAmsterdam Movement SciencesAmsterdam University Medical CenterUniversity of AmsterdamAmsterdamthe Netherlands
| | - Annegreet G. Veldhuis‐Vlug
- Department of Internal MedicineJan van Goyen Medical Center/Onze Lieve Vrouwe GasthuisAmsterdamthe Netherlands
- Department of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
| | - Yair Acherman
- Department of SurgerySpaarne GasthuisHaarlemthe Netherlands
| | - Victor E. Gerdes
- Department of Vascular MedicineAmsterdam University Medical CenterUniversity of AmsterdamAmsterdamthe Netherlands
| | - Martin den Heijer
- Department of EndocrinologyAmsterdam Movement SciencesAmsterdam University Medical CenterVrije University, AmsterdamAmsterdamthe Netherlands
| | - Mario Maas
- Department of Radiology and Nuclear MedicineAmsterdam Movement SciencesAmsterdam University Medical CenterUniversity of AmsterdamAmsterdamthe Netherlands
| | - Nathalie Bravenboer
- Department of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Department of Clinical ChemistryResearch Laboratory Bone and Calcium MetabolismAmsterdam Movement SciencesAmsterdam University Medical CenterVrije University, AmsterdamAmsterdamthe Netherlands
| | - Peter H. Bisschop
- Department of EndocrinologyAmsterdam Movement SciencesAmsterdam University Medical CenterUniversity of AmsterdamAmsterdamthe Netherlands
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23
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Abstract
Skeletal remodeling is essential for proper maintenance of adult bone mass, and due to its heavy energetic demands this process is closely tied to whole body metabolic. Thus, bone formation by the osteoblast, bone resorption by the osteoclast, and mechano-sensing by the osteocyte, are highly coupled processes that are essential for bone turnover. When one experiences a disruption in these processes, over time increased skeletal fragility and fracture can result. In addition to these primary cells, secondary cells within the skeletal niche are suspected to directly coordinate bone health as well. The bone marrow compartment provides a unique microenvironment in which communication occurs between white blood cells, red blood cells, platelets, and immune cells, in addition to classic bone cells (osteoblasts, osteoclasts, and osteocytes) that can both directly and indirectly impact skeletal homeostasis. One such cell population that has attracted much attention and scientific inquiry in the past decade are bone marrow adipocytes (BMAdipo) which can be found interspersed throughout the marrow compartment, and collectively are often referred to as bone marrow adipose tissue (BMAT). Although our understanding of BMAT has advanced significantly in the past decade, many questions remain relative to their lineage and function. The current collection presents recent studies and the up-to-date understanding of bone marrow adipocytes, along with future clinical perspectives related to this unique depot.
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Affiliation(s)
- Ananya Nandy
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA; Center for Bone Biology, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - Elizabeth Rendina-Ruedy
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA; Center for Bone Biology, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA; Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, 37232, USA.
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24
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Baroi S, Czernik PJ, Chougule A, Griffin PR, Lecka-Czernik B. PPARG in osteocytes controls sclerostin expression, bone mass, marrow adiposity and mediates TZD-induced bone loss. Bone 2021; 147:115913. [PMID: 33722775 PMCID: PMC8076091 DOI: 10.1016/j.bone.2021.115913] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/05/2021] [Accepted: 03/06/2021] [Indexed: 01/07/2023]
Abstract
The peroxisome proliferator activated receptor gamma (PPARG) nuclear receptor regulates energy metabolism and insulin sensitivity. In this study, we present novel evidence for an essential role of PPARG in the regulation of osteocyte function, and support for the emerging concept of the conjunction between regulation of energy metabolism and bone mass. We report that PPARG is essential for sclerostin production, a recently approved target to treat osteoporosis. Our mouse model of osteocyte-specific PPARG deletion (Dmp1CrePparγflfl or γOTKO) is characterized with increased bone mass and reduced bone marrow adiposity, which is consistent with upregulation of WNT signaling and increased bone forming activity of endosteal osteoblasts. An analysis of osteocytes derived from γOTKO and control mice showed an excellent correlation between PPARG and SOST/sclerostin at the transcript and protein levels. The 8 kb sequence upstream of Sost gene transcription start site possesses multiple PPARG binding elements (PPREs) with at least two of them binding PPARG with dynamics reflecting its activation with full agonist rosiglitazone and correlating with increased levels of Sost transcript and sclerostin protein expression (Pearson's r = 0.991, p = 0.001). Older γOTKO female mice are largely protected from TZD-induced bone loss providing proof of concept that PPARG in osteocytes can be pharmacologically targeted. These findings demonstrate that transcriptional activities of PPARG are essential for sclerostin expression in osteocytes and support consideration of targeting PPARG activities with selective modulators to treat osteoporosis.
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Affiliation(s)
- Sudipta Baroi
- Department of Orthopaedic Surgery, University of Toledo, College of Medicine and Life Sciences, Toledo, OH, United States of America; Center for Diabetes and Endocrine Research, University of Toledo, College of Medicine and Life Sciences, Toledo, OH, United States of America
| | - Piotr J Czernik
- Department of Physiology and Pharmacology, University of Toledo, College of Medicine and Life Sciences, Toledo, OH, United States of America
| | - Amit Chougule
- Department of Orthopaedic Surgery, University of Toledo, College of Medicine and Life Sciences, Toledo, OH, United States of America; Center for Diabetes and Endocrine Research, University of Toledo, College of Medicine and Life Sciences, Toledo, OH, United States of America
| | - Patrick R Griffin
- The Scripps Research Institute, Jupiter, FL, University of Toledo, College of Medicine and Life Sciences, Toledo, OH, United States of America
| | - Beata Lecka-Czernik
- Department of Orthopaedic Surgery, University of Toledo, College of Medicine and Life Sciences, Toledo, OH, United States of America; Department of Physiology and Pharmacology, University of Toledo, College of Medicine and Life Sciences, Toledo, OH, United States of America; Center for Diabetes and Endocrine Research, University of Toledo, College of Medicine and Life Sciences, Toledo, OH, United States of America.
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25
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Fonseca H, Bezerra A, Coelho A, Duarte JA. Association between Visceral and Bone Marrow Adipose Tissue and Bone Quality in Sedentary and Physically Active Ovariectomized Wistar Rats. Life (Basel) 2021; 11:life11060478. [PMID: 34070279 PMCID: PMC8225130 DOI: 10.3390/life11060478] [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: 04/08/2021] [Revised: 05/20/2021] [Accepted: 05/21/2021] [Indexed: 01/13/2023] Open
Abstract
Background: Obesity is considered protective for bone mass, but this view has been progressively challenged. Menopause is characterized by low bone mass and increased adiposity. Our aim was to determine how visceral and bone marrow adiposity change following ovariectomy (OVX), how they correlate with bone quality and if they are influenced by physical activity. Methods: Five-month-old Wistar rats were OVX or sham-operated and maintained in sedentary or physically active conditions for 9 months. Visceral and bone marrow adiposity as well as bone turnover, femur bone quality and biomechanical properties were assessed. Results: OVX resulted in higher weight, visceral and bone marrow adiposity. Visceral adiposity correlated inversely with femur Ct.Th (r = −0.63, p < 0.001), BV/TV (r = −0.67, p < 0.001), Tb.N (r = −0.69, p < 0.001) and positively with Tb.Sp (r = 0.58, p < 0.001). Bone marrow adiposity also correlated with bone resorption (r = 0.47, p < 0.01), bone formation rate (r = −0.63, p < 0.01), BV/TV (r = −0.85, p < 0.001), Ct.Th (r = −0.51, p < 0.0.01), and with higher empty osteocyte lacunae (r = 0.39, p < 0.05), higher percentage of osteocytes with oxidative stress (r = 0.64, p < 0.0.01) and lower femur maximal stress (r = −0.58, p < 0.001). Physical activity correlated inversely with both visceral (r = −0.74, p < 0.01) and bone marrow adiposity (r = −0.92, p < 0.001). Conclusions: OVX increases visceral and bone marrow adiposity which are associated with inferior bone quality and biomechanical properties. Physical activity could contribute to reduce adipose tissue and thereby improve bone quality.
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Affiliation(s)
- Hélder Fonseca
- Faculty of Sport, University of Porto (FADE/UP), 4200-450 Porto, Portugal; (A.B.); (A.C.); (J.A.D.)
- Research Center of Physical Activity, Health and Leisure (CIAFEL), 4200-450 Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
- Correspondence: ; Tel.: +351-220-425-239
| | - Andrea Bezerra
- Faculty of Sport, University of Porto (FADE/UP), 4200-450 Porto, Portugal; (A.B.); (A.C.); (J.A.D.)
- Research Center of Physical Activity, Health and Leisure (CIAFEL), 4200-450 Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
| | - Ana Coelho
- Faculty of Sport, University of Porto (FADE/UP), 4200-450 Porto, Portugal; (A.B.); (A.C.); (J.A.D.)
- Research Center of Physical Activity, Health and Leisure (CIAFEL), 4200-450 Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
| | - José Alberto Duarte
- Faculty of Sport, University of Porto (FADE/UP), 4200-450 Porto, Portugal; (A.B.); (A.C.); (J.A.D.)
- Research Center of Physical Activity, Health and Leisure (CIAFEL), 4200-450 Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
- Polytechnic and University Higher Education Cooperative (CESPU), 4485-116 Gandra Campus, 4050-600 Porto, Portugal
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26
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Colombo A, Bombelli L, Summers PE, Saia G, Zugni F, Marvaso G, Grimm R, Jereczek-Fossa BA, Padhani AR, Petralia G. Effects of Sex and Age on Fat Fraction, Diffusion-Weighted Image Signal Intensity and Apparent Diffusion Coefficient in the Bone Marrow of Asymptomatic Individuals: A Cross-Sectional Whole-Body MRI Study. Diagnostics (Basel) 2021; 11:diagnostics11050913. [PMID: 34065459 PMCID: PMC8161193 DOI: 10.3390/diagnostics11050913] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/18/2021] [Accepted: 05/18/2021] [Indexed: 01/23/2023] Open
Abstract
We aimed to describe the relationships between the relative fat fraction (%FF), muscle-normalized diffusion-weighted (DW) image signal intensity and water apparent diffusion coefficient (ADC), sex and age for normal bone marrow, in the normal population. Our retrospective cohort consisted of 100 asymptomatic individuals, equally divided by sex and 10-year age groups, who underwent whole-body MRI at 1.5 T for early cancer detection. Semi-automated segmentation of global bone marrow volume was performed using the DW images and the resulting segmentation masks were projected onto the ADC and %FF maps for extraction of parameter values. Differences in the parameter values between sexes at age ranges were assessed using the Mann–Whitney and Kruskal–Wallis tests. The Spearman correlation coefficient r was used to assess the relationship of each imaging parameter with age, and of %FF with ADC and normalized DW signal intensity values. The average %FF of normal bone marrow was 65.6 ± 7.2%, while nSIb50, nSIb900 and ADC were 1.7 ± 0.5, 3.2 ± 0.9 and 422 ± 67 μm2/s, respectively. The bone marrow %FF values increased with age in both sexes (r = 0.63 and r = 0.64, respectively, p < 0.001). Values of nSIb50 and nSIb900 were higher in younger women compared to men of the same age groups (p < 0.017), but this difference decreased with age. In our cohort of asymptomatic individuals, the values of bone marrow relative %FF, normalized DW image signal intensity and ADC indicate higher cellularity in premenopausal women, with increasing bone marrow fat with aging in both sexes.
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Affiliation(s)
- Alberto Colombo
- Division of Radiology, IEO European Institute of Oncology IRCCS, 20141 Milan, Italy; (L.B.); (P.E.S.); (G.S.); (F.Z.)
- Correspondence:
| | - Luca Bombelli
- Division of Radiology, IEO European Institute of Oncology IRCCS, 20141 Milan, Italy; (L.B.); (P.E.S.); (G.S.); (F.Z.)
| | - Paul E. Summers
- Division of Radiology, IEO European Institute of Oncology IRCCS, 20141 Milan, Italy; (L.B.); (P.E.S.); (G.S.); (F.Z.)
| | - Giulia Saia
- Division of Radiology, IEO European Institute of Oncology IRCCS, 20141 Milan, Italy; (L.B.); (P.E.S.); (G.S.); (F.Z.)
| | - Fabio Zugni
- Division of Radiology, IEO European Institute of Oncology IRCCS, 20141 Milan, Italy; (L.B.); (P.E.S.); (G.S.); (F.Z.)
| | - Giulia Marvaso
- Division of Radiotherapy, IEO European Institute of Oncology IRCCS, 20141 Milan, Italy; (G.M.); (B.A.J.-F.)
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy;
| | - Robert Grimm
- MR Applications Pre-Development, Siemens Healthcare, 91052 Erlangen, Germany;
| | - Barbara A. Jereczek-Fossa
- Division of Radiotherapy, IEO European Institute of Oncology IRCCS, 20141 Milan, Italy; (G.M.); (B.A.J.-F.)
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy;
| | - Anwar R. Padhani
- Paul Strickland Scanner Centre, Mount Vernon Cancer Centre, Northwood HA6 2RN, UK;
| | - Giuseppe Petralia
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy;
- Precision Imaging and Research Unit, Department of Medical Imaging and Radiation Sciences, IEO European Institute of Oncology IRCCS, 20141 Milan, Italy
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27
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Piotrowska K, Tarnowski M. Bone Marrow Adipocytes-Role in Physiology and Various Nutritional Conditions in Human and Animal Models. Nutrients 2021; 13:nu13051412. [PMID: 33922353 PMCID: PMC8146898 DOI: 10.3390/nu13051412] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 02/06/2023] Open
Abstract
In recent years, adipose tissue has attracted a lot of attention. It is not only an energy reservoir but also plays important immune, paracrine and endocrine roles. BMAT (bone marrow adipose tissue) is a heterogeneous tissue, found mostly in the medullary canal of the long bones (tibia, femur and humerus), in the vertebrae and iliac crest. Adipogenesis in bone marrow cavities is a consequence of ageing or may accompany pathologies like diabetes mellitus type 1 (T1DM), T2DM, anorexia nervosa, oestrogen and growth hormone deficiencies or impaired haematopoiesis and osteoporosis. This paper focuses on studies concerning BMAT and its physiology in dietary interventions, like obesity in humans and high fat diet in rodent studies; and opposite: anorexia nervosa and calorie restriction in animal models.
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28
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Singhal V, Karzar NH, Bose A, Buckless C, Ackerman KE, Bredella MA, Klibanski A, Misra M. Changes in marrow adipose tissue in relation to changes in bone parameters following estradiol replacement in adolescent and young adult females with functional hypothalamic amenorrhea. Bone 2021; 145:115841. [PMID: 33418100 PMCID: PMC8022869 DOI: 10.1016/j.bone.2021.115841] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 12/14/2020] [Accepted: 01/01/2021] [Indexed: 11/19/2022]
Abstract
CONTEXT Low energy availability causes disruption of hypothalamic gonadotropin-releasing hormone secretion leading to functional hypothalamic amenorrhea (FHA) and hypoestrogenism, which in turn contributes to decreased bone mineral density (BMD) and increased bone marrow adipose tissue (MAT). Transdermal estradiol administration in physiologic doses increases BMD in adolescents and adults with FHA. However, the impact of estrogen replacement on MAT in relation to changes in BMD has not been studied in adolescents and young adults. We hypothesized that physiologic estrogen replacement would lead to decreases in MAT, associated with increases in BMD. METHODS AND MATERIALS We studied 15 adolescent and young adult females with FHA (14-25 years). All participants received a17β- estradiol transdermal patch at a dose of 0.1 mg/day (applied twice weekly) for 12 months. Participants also received cyclic progestin for 10-12 days each month. We quantified MAT (lipid/water ratio) of the fourth lumbar (L4) vertebral body and femoral diaphysis by single proton (1H)-magnetic resonance spectroscopy, and compartmental volumetric BMD of the distal radius and tibia using high-resolution peripheral quantitative computed tomography. RESULTS Transdermal estradiol therapy over 12 months resulted in a decrease in MAT at the lumbar (L4) vertebra from 0.92 ± 0.55 at baseline to 0.63 ± 0.29 at 12-months (p = 0.008), and an increase in radial and tibial cortical vBMD (p = 0.006, p = 0.0003). Changes in L4 MAT trended to be inversely associated with changes in radial cortical vBMD (rho = -0.47, p = 0.08). CONCLUSION We show that in adolescent and young adult girls with FHA, MAT decreases following transdermal estrogen therapy and these changes are associated with increased cortical vBMD.
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Affiliation(s)
- Vibha Singhal
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States; Division of Pediatric Endocrinology, Mass General Hospital for Children and Harvard Medical School, Boston, MA, United States; MGH Weight Center, Massachusetts General Hospital, Boston, MA, United States.
| | - Nazanin Hazhir Karzar
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States.
| | - Amita Bose
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States.
| | - Colleen Buckless
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States.
| | - Kathryn E Ackerman
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States.
| | - Miriam A Bredella
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States.
| | - Anne Klibanski
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States.
| | - Madhusmita Misra
- Neuroendocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States; Division of Pediatric Endocrinology, Mass General Hospital for Children and Harvard Medical School, Boston, MA, United States.
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29
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Veldhuis-Vlug AG, Woods GN, Sigurdsson S, Ewing SK, Le PT, Hue TF, Vittinghoff E, Xu K, Gudnason V, Sigurdsson G, Kado DM, Eiriksdottir G, Harris T, Schafer AL, Li X, Zaidi M, Rosen CJ, Schwartz AV. Serum FSH Is Associated With BMD, Bone Marrow Adiposity, and Body Composition in the AGES-Reykjavik Study of Older Adults. J Clin Endocrinol Metab 2021; 106:e1156-e1169. [PMID: 33326040 PMCID: PMC7947831 DOI: 10.1210/clinem/dgaa922] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
CONTEXT Follicle-stimulating hormone (FSH) concentrations increase during the perimenopausal transition and remain high after menopause. Loss of bone mineral density (BMD) and gain of bone marrow adiposity (BMA) and body fat mass also occur during this time. In mice, blocking the action of FSH increases bone mass and decreases fat mass. OBJECTIVE To investigate the associations between endogenous FSH levels and BMD, BMA, and body composition in older adults, independent of estradiol and testosterone levels. DESIGN, SETTING, AND PARTICIPANTS Older adults from the AGES-Reykjavik Study, an observational cohort study. MAIN OUTCOME MEASURES Areal BMD, total body fat, and lean mass were measured with dual-energy x-ray absorptiometry. Lumbar vertebral BMA was measured by 1H-magnetic resonance spectroscopy. Volumetric BMD and visceral and subcutaneous adipose tissue (VAT, SAT) areas were measured with quantitative computed tomography. The least squares means procedure was used to determine sex hormone-adjusted associations between quartiles of serum FSH and BMD, BMA, and body composition. RESULTS In women (N = 238, mean age 81 years), those in the highest FSH quartile, compared with the lowest quartile, had lower adjusted mean spine integral BMD (-8.6%), lower spine compressive strength index (-34.8%), higher BMA (+8.4%), lower weight (-8.4%), lower VAT (-17.6%), lower lean mass (-6.1%), and lower fat mass (-11.9%) (all P < 0.05). In men, FSH level was not associated with any outcome. CONCLUSIONS Older postmenopausal women with higher FSH levels have higher BMA, but lower BMD and lower fat and lean mass, independent of estradiol and testosterone levels. Longitudinal studies are needed to better understand the underlying mechanisms.
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Affiliation(s)
- Annegreet G Veldhuis-Vlug
- Center for Clinical and Translational Research, Maine Medical Center Research Institute, Scarborough, ME, USA
- Center for Bone Quality, Department of Endocrinology, Leiden University Medical Center, ZA Leiden, The Netherlands
- Correspondence: A.G. Veldhuis-Vlug, MD, PhD, Center for Bone Quality, department of Endocrinology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands. ; G.N. Woods, MD, Department of Medicine, UC San Diego, VA San Diego Healthcare System, 3350 La Jolla Village Drive, 111G San Diego, CA 92116.
| | - Gina N Woods
- Department of Medicine, UC San Diego, La Jolla, CA, USA
- VA San Diego Healthcare System, San Diego, CA, USA
- Correspondence: A.G. Veldhuis-Vlug, MD, PhD, Center for Bone Quality, department of Endocrinology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands. ; G.N. Woods, MD, Department of Medicine, UC San Diego, VA San Diego Healthcare System, 3350 La Jolla Village Drive, 111G San Diego, CA 92116.
| | | | - Susan K Ewing
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA
| | - Phuong T Le
- Center for Clinical and Translational Research, Maine Medical Center Research Institute, Scarborough, ME, USA
| | - Trisha F Hue
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA
| | - Eric Vittinghoff
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA
| | - Kaipin Xu
- Program of Advanced Musculoskeletal Imaging (PAMI), Cleveland Clinic, Cleveland, OH, USA
| | - Vilmundur Gudnason
- Icelandic Heart Association Research Institute, Kopavogur, Iceland
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | | | - Deborah M Kado
- Department of Medicine, UC San Diego, La Jolla, CA, USA
- Department of Family Medicine and Public Health, UC San Diego, La Jolla, CA, USA
| | | | - Tamara Harris
- National Institute on Aging, National Institutes of Health (NIA, NIH), Bethesda, MD, USA
| | - Anne L Schafer
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
- Endocrine Research Unit, San Francisco Veterans Affairs Health Care System, San Francisco, CA, USA
| | - Xiaojuan Li
- Program of Advanced Musculoskeletal Imaging (PAMI), Cleveland Clinic, Cleveland, OH, USA
| | - Mone Zaidi
- The Mount Sinai Bone Program and Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Clifford J Rosen
- Center for Clinical and Translational Research, Maine Medical Center Research Institute, Scarborough, ME, USA
| | - Ann V Schwartz
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA
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Regulation of Osteoclast Differentiation and Activity by Lipid Metabolism. Cells 2021; 10:cells10010089. [PMID: 33430327 PMCID: PMC7825801 DOI: 10.3390/cells10010089] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 01/02/2021] [Accepted: 01/05/2021] [Indexed: 02/07/2023] Open
Abstract
Bone is a dynamic tissue and is constantly being remodeled by bone cells. Metabolic reprogramming plays a critical role in the activation of these bone cells and skeletal metabolism, which fulfills the energy demand for bone remodeling. Among various metabolic pathways, the importance of lipid metabolism in bone cells has long been appreciated. More recent studies also establish the link between bone loss and lipid-altering conditions—such as atherosclerotic vascular disease, hyperlipidemia, and obesity—and uncover the detrimental effect of fat accumulation on skeletal homeostasis and increased risk of fracture. Targeting lipid metabolism with statin, a lipid-lowering drug, has been shown to improve bone density and quality in metabolic bone diseases. However, the molecular mechanisms of lipid-mediated regulation in osteoclasts are not completely understood. Thus, a better understanding of lipid metabolism in osteoclasts can be used to harness bone cell activity to treat pathological bone disorders. This review summarizes the recent developments of the contribution of lipid metabolism to the function and phenotype of osteoclasts.
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Lewis JW, Edwards JR, Naylor AJ, McGettrick HM. Adiponectin signalling in bone homeostasis, with age and in disease. Bone Res 2021; 9:1. [PMID: 33414405 PMCID: PMC7790832 DOI: 10.1038/s41413-020-00122-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 08/28/2020] [Accepted: 10/14/2020] [Indexed: 01/29/2023] Open
Abstract
Adiponectin is the most abundant circulating adipokine and is primarily involved in glucose metabolism and insulin resistance. Within the bone, osteoblasts and osteoclasts express the adiponectin receptors, however, there are conflicting reports on the effects of adiponectin on bone formation and turnover. Many studies have shown a pro-osteogenic role for adiponectin in in vivo murine models and in vitro: with increased osteoblast differentiation and activity, alongside lower levels of osteoclastogenesis. However, human studies often demonstrate an inverse relationship between adiponectin concentration and bone activity. Moreover, the presence of multiple isoforms of adiponectin and multiple receptor subtypes has the potential to lead to more complex signalling and functional consequences. As such, we still do not fully understand the importance of the adiponectin signalling pathway in regulating bone homeostasis and repair in health, with age and in disease. In this review, we explore our current understanding of adiponectin bioactivity in the bone; the significance of its different isoforms; and how adiponectin biology is altered in disease. Ultimately, furthering our understanding of adiponectin regulation of bone biology is key to developing pharmacological and non-pharmacological (lifestyle) interventions that target adiponectin signalling to boost bone growth and repair in healthy ageing, following injury or in disease.
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Affiliation(s)
- Jonathan W Lewis
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, B15 2TT, UK
| | - James R Edwards
- Ageing & Regeneration Research Group, Botnar Research Centre, University of Oxford, Oxford, OX3 7LD, UK
| | - Amy J Naylor
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, B15 2TT, UK
| | - Helen M McGettrick
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, B15 2TT, UK.
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Little-Letsinger SE, Pagnotti GM, McGrath C, Styner M. Exercise and Diet: Uncovering Prospective Mediators of Skeletal Fragility in Bone and Marrow Adipose Tissue. Curr Osteoporos Rep 2020; 18:774-789. [PMID: 33068251 PMCID: PMC7736569 DOI: 10.1007/s11914-020-00634-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/29/2020] [Indexed: 02/07/2023]
Abstract
PURPOSE OF REVIEW To highlight recent basic, translational, and clinical works demonstrating exercise and diet regulation of marrow adipose tissue (MAT) and bone and how this informs current understanding of the relationship between marrow adiposity and musculoskeletal health. RECENT FINDINGS Marrow adipocytes accumulate in the bone in the setting of not only hypercaloric intake (calorie excess; e.g., diet-induced obesity) but also with hypocaloric intake (calorie restriction; e.g., anorexia), despite the fact that these states affect bone differently. With hypercaloric intake, bone quantity is largely unaffected, whereas with hypocaloric intake, bone quantity and quality are greatly diminished. Voluntary running exercise in rodents was found to lower MAT and promote bone in eucaloric and hypercaloric states, while degrading bone in hypocaloric states, suggesting differential modulation of MAT and bone, dependent upon whole-body energy status. Energy status alters bone metabolism and bioenergetics via substrate availability or excess, which plays a key role in the response of bone and MAT to mechanical stimuli. Marrow adipose tissue (MAT) is a fat depot with a potential role in-as well as responsivity to-whole-body energy metabolism. Understanding the localized function of this depot in bone cell bioenergetics and substrate storage, principally in the exercised state, will aid to uncover putative therapeutic targets for skeletal fragility.
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Affiliation(s)
- Sarah E Little-Letsinger
- Department of Medicine, Division of Endocrinology & Metabolism, University of North Carolina, Chapel Hill, NC, USA.
| | - Gabriel M Pagnotti
- Department of Medicine, Division of Endocrinology, Indiana University, Indianapolis, IN, USA
| | - Cody McGrath
- Department of Medicine, Division of Endocrinology & Metabolism, University of North Carolina, Chapel Hill, NC, USA
| | - Maya Styner
- Department of Medicine, Division of Endocrinology & Metabolism, University of North Carolina, Chapel Hill, NC, USA
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Whitney DG, Devlin MJ, Alford AI, Modlesky CM, Peterson MD, Li Y, Caird MS. Test-Retest Reliability and Correlates of Vertebral Bone Marrow Lipid Composition by Lipidomics Among Children With Varying Degrees of Bone Fragility. JBMR Plus 2020; 4:e10400. [PMID: 33103029 PMCID: PMC7574707 DOI: 10.1002/jbm4.10400] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/01/2020] [Accepted: 07/20/2020] [Indexed: 12/22/2022] Open
Abstract
The reliability of lipidomics, an approach to identify the presence and interactions of lipids, to analyze the bone marrow lipid composition among pediatric populations with bone fragility is unknown. The objective of this study was to assess the test–retest reliability, standard error of measurement (SEM), and the minimal detectable change (MDC) of vertebral bone marrow lipid composition determined by targeted lipidomics among children with varying degrees of bone fragility undergoing routine orthopedic surgery. Children aged 10 to 19 years, with a confirmed diagnosis of adolescent idiopathic scoliosis (n = 13) or neuromuscular scoliosis and cerebral palsy (n = 3), undergoing posterior spinal fusion surgery at our institution were included in this study. Transpedicular vertebral body bone marrow samples were taken from thoracic vertebrae (T11, 12) or lumbar vertebrae (L1 to L4). Lipid composition was assessed via targeted lipidomics and all samples were analyzed in the same batch. Lipid composition measures were examined as the saturated, monounsaturated, and polyunsaturated index and as individual fatty acids. Relative and absolute test–retest reliability was assessed using the intraclass correlation coefficient (ICC), SEM, and MDC. Associations between demographics and index measures were explored. The ICC, SEM, and MDC were 0.81 (95% CI, 0.55–0.93), 1.6%, and 4.3%, respectively, for the saturated index, 0.66 (95% CI, 0.25–0.87), 3.5%, and 9.7%, respectively, for the monounsaturated index, and 0.60 (95% CI, 0.17–0.84), 3.6%, and 9.9%, respectively, for the polyunsaturated index. For the individual fatty acids, the ICC showed a considerable range from 0.04 (22:2n‐6) to 0.97 (18:3n‐3). Age was positively correlated with the saturated index (r2 = 0.36; p = 0.014) and negatively correlated with the polyunsaturated index (r2 = 0.26; p = 0.043); there was no difference in index measures by sex (p > 0.58). The test–retest reliability was moderate‐to‐good for index measures and poor to excellent for individual fatty acids; this information can be used to power research studies and identify measures for clinical or research monitoring. © 2020 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Daniel G Whitney
- Department of Physical Medicine and Rehabilitation University of Michigan Ann Arbor MI USA.,Institute for Healthcare Policy and Innovation University of Michigan Ann Arbor MI USA
| | - Maureen J Devlin
- Department of Anthropology University of Michigan Ann Arbor MI USA
| | - Andrea I Alford
- Department of Orthopaedic Surgery University of Michigan Ann Arbor MI USA
| | | | - Mark D Peterson
- Department of Physical Medicine and Rehabilitation University of Michigan Ann Arbor MI USA.,Institute for Healthcare Policy and Innovation University of Michigan Ann Arbor MI USA
| | - Ying Li
- Department of Orthopaedic Surgery University of Michigan Ann Arbor MI USA
| | - Michelle S Caird
- Department of Orthopaedic Surgery University of Michigan Ann Arbor MI USA
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Aparisi Gómez MP, Ayuso Benavent C, Simoni P, Aparisi F, Guglielmi G, Bazzocchi A. Fat and bone: the multiperspective analysis of a close relationship. Quant Imaging Med Surg 2020; 10:1614-1635. [PMID: 32742956 DOI: 10.21037/qims.2020.01.11] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The study of bone has for many years been focused on the study of its mineralized component, and one of the main objects of study as radiology developed as a medical specialty. The assessment has until recently been almost limited to its role as principal component of the scaffolding of the human body. Bone is a very active tissue, in continuous cross-talk with other organs and systems, with functions that are endocrine and paracrine and that have an important involvement in metabolism, ageing and health in general. Bone is also the continent for the bone marrow, in the form of "yellow marrow" (mainly adipocytes) or "red marrow" (hematopoietic cells and adipocytes). Recently, numerous studies have focused on these adipocytes contained in the bone marrow, often referred to as marrow adipose tissue (MAT). Bone marrow adipocytes do not only work as storage tissue, but are also endocrine and paracrine cells, with the potential to contribute to local bone homeostasis and systemic metabolism. Many metabolic disorders (osteoporosis, obesity, diabetes) have a complex and still not well-established relationship with MAT. The development of imaging methods, in particular the development of cross-sectional imaging has helped us to understand how much more laid beyond our classical way to look at bone. The impact on the mineralized component of bone in some cases (e.g., osteoporosis) is well-established, and has been extensively analyzed and quantified through different radiological methods. The application of advanced magnetic resonance techniques has unlocked the possibility to access the detailed study, characterization and quantification of the bone marrow components in a non-invasive way. In this review, we will address what is the evidence on the physiological role of MAT in normal skeletal health (interaction with the other bone components), during the process of normal aging and in the context of some metabolic disorders, highlighting the role that imaging methods play in helping with quantification and diagnosis.
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Affiliation(s)
- Maria Pilar Aparisi Gómez
- Department of Radiology, Auckland City Hospital, Auckland, New Zealand.,Department of Radiology, Hospital Vithas Nueve de Octubre, Valencia, Spain
| | | | - Paolo Simoni
- Department of Radiology, "Reine Fabiola" Children's University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Francisco Aparisi
- Department of Radiology, Hospital Vithas Nueve de Octubre, Valencia, Spain
| | - Giuseppe Guglielmi
- Department of Radiology, University of Foggia, Foggia, Italy.,Department of Radiology, Hospital San Giovanni Rotondo, Foggia, Italy
| | - Alberto Bazzocchi
- Diagnostic and Interventional Radiology, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
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Shim KS, Hwang YH, Jang SA, Kim T, Ha H. Water Extract of Lysimachia christinae Inhibits Trabecular Bone Loss and Fat Accumulation in Ovariectomized Mice. Nutrients 2020; 12:nu12071927. [PMID: 32610585 PMCID: PMC7399897 DOI: 10.3390/nu12071927] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 06/24/2020] [Accepted: 06/28/2020] [Indexed: 12/16/2022] Open
Abstract
In Asia, extracts of Lysimachia christinae have been used for liver or urinogenital system-related diseases in traditional medicine. In this study, we investigated the effects of the water extract of L. christinae (WELC) on receptor activator of nuclear factor-kappa Β ligand (RANKL)-induced osteoclastic differentiation of bone marrow macrophages, and on osteoporosis and obesity in ovariectomy mice. RANK signaling pathways related to osteoclast differentiation were examined by real-time polymerase chain reaction (PCR) and western blot analysis. Additionally, we performed micro-computed tomography to assess trabecular bone loss, histological analysis for fat accumulation in adipose, liver, and bone tissues, and phytochemical profiling for WELC characterization. WELC significantly inhibited osteoclast differentiation by downregulating RANKL-induced mitogen-activated protein kinase (MAPK)/c-Fos/nuclear factor of activated T-cells (NFAT) signaling in osteoclast precursors and ovariectomy-induced trabecular loss by suppressing osteolcastic bone resorption. WELC markedly decreased ovariectomy-induced body weight gain and fat accumulation in adipose, liver, and bone tissues. Furthermore, ultra-high-performance liquid chromatography-tandem mass spectrometry (UHPLC–MS/MS) identified 16 phytochemicals in WELC when compared with the mass fragmentation of standard chemicals. Collectively, these results suggest that WELC might possess beneficial effects on postmenopausal osteoporosis by inhibiting osteoclast differentiation and obesity by suppressing fat accumulation.
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Affiliation(s)
- Ki-Shuk Shim
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Yuseong-gu, Daejeon 34054, Korea; (K.-S.S.); (Y.-H.H.); (S.-A.J.); (T.K.)
| | - Youn-Hwan Hwang
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Yuseong-gu, Daejeon 34054, Korea; (K.-S.S.); (Y.-H.H.); (S.-A.J.); (T.K.)
- Korean Convergence Medicine Major KIOM, University of Science & Technology (UST), 1672 Yuseongdae-ro, Yuseong-gu, Daejeon 34054, Korea
| | - Seon-A Jang
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Yuseong-gu, Daejeon 34054, Korea; (K.-S.S.); (Y.-H.H.); (S.-A.J.); (T.K.)
| | - Taesoo Kim
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Yuseong-gu, Daejeon 34054, Korea; (K.-S.S.); (Y.-H.H.); (S.-A.J.); (T.K.)
| | - Hyunil Ha
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Yuseong-gu, Daejeon 34054, Korea; (K.-S.S.); (Y.-H.H.); (S.-A.J.); (T.K.)
- Correspondence: ; Tel.: +82-42-868-9367
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Polineni S, Resulaj M, Faje AT, Meenaghan E, Bredella MA, Bouxsein M, Lee H, MacDougald OA, Klibanski A, Fazeli PK. Red and White Blood Cell Counts Are Associated With Bone Marrow Adipose Tissue, Bone Mineral Density, and Bone Microarchitecture in Premenopausal Women. J Bone Miner Res 2020; 35:1031-1039. [PMID: 32078187 PMCID: PMC7881438 DOI: 10.1002/jbmr.3986] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 01/03/2020] [Accepted: 02/13/2020] [Indexed: 12/18/2022]
Abstract
Bone marrow adipose tissue (BMAT) resides within the bone marrow microenvironment where its function remains poorly understood. BMAT is elevated in anorexia nervosa, a disease model of chronic starvation, despite depletion of other fat depots. In addition to BMAT, the marrow microenvironment also consists of osteoblast and hematopoietic progenitors. BMAT is inversely associated with bone mineral density (BMD) in multiple populations including women with anorexia nervosa, and regulates hematopoiesis in animal models. We hypothesized that BMAT would be associated with circulating populations of hematopoietic cells (red and white blood cells) in humans and performed a post hoc analysis of two studies-a cross-sectional study and a longitudinal study-to investigate this hypothesis. We studied 89 premenopausal women cross-sectionally (median age [interquartile range], 27 [24.5, 31.7] years), including 35 with anorexia nervosa. We investigated associations between red blood cell (RBC) and white blood cell (WBC) counts and BMAT assessed by 1 H-magnetic resonance spectroscopy, BMD assessed by DXA, and bone microarchitecture assessed by HR-pQCT. In addition, we analyzed longitudinal data in six premenopausal women with anorexia nervosa treated with transdermal estrogen for 6 months and measured changes in BMAT and blood cell counts during treatment. Cross-sectionally, BMAT was inversely associated with WBC and RBC counts. In contrast, BMD and parameters of bone microarchitecture were positively associated with WBC and RBC. In women with anorexia nervosa treated with transdermal estrogen for 6 months, decreases in BMAT were significantly associated with increases in both RBC and hematocrit (rho = -0.83, p = 0.04 for both). In conclusion, we show that BMAT is inversely associated with WBC and RBC in premenopausal women, and there is a potential association between longitudinal changes in BMAT and changes in RBC. These associations warrant further study and may provide further insight into the role and function of this understudied adipose depot. © 2020 American Society for Bone and Mineral Research.
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Affiliation(s)
- Sai Polineni
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA
| | - Megi Resulaj
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA
| | - Alexander T. Faje
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA
- Harvard Medical School, Boston, MA
| | | | - Miriam A. Bredella
- Harvard Medical School, Boston, MA
- Department of Radiology, Massachusetts General Hospital, Boston, MA
| | - Mary Bouxsein
- Harvard Medical School, Boston, MA
- Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Boston, MA
| | - Hang Lee
- Harvard Medical School, Boston, MA
- Biostatistics Center, Massachusetts General Hospital, Boston, MA
| | - Ormond A. MacDougald
- Department of Molecular & Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI
| | - Anne Klibanski
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA
- Harvard Medical School, Boston, MA
| | - Pouneh K. Fazeli
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA
- Harvard Medical School, Boston, MA
- Division of Endocrinology and Metabolism, University of Pittsburgh School of Medicine, Pittsburgh, PA
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Saleh N, Nassef NA, Shawky MK, Elshishiny MI, Saleh HA. Novel approach for pathogenesis of osteoporosis in ovariectomized rats as a model of postmenopausal osteoporosis. Exp Gerontol 2020; 137:110935. [PMID: 32339647 DOI: 10.1016/j.exger.2020.110935] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 02/10/2020] [Accepted: 03/25/2020] [Indexed: 01/31/2023]
Abstract
BACKGROUND Obesity and osteoporosis are two chronic conditions that have been increasing in prevalence. Menopausal transition years place women at high risk for visceral obesity as well as osteoporosis. This study was carried out to elucidate the effect of visceral adiposity on ovariectomy-induced osteoporosis in rats. METHODS We studied female Wistar rats aged 12-14 months, divided into four groups: a) Sham-operated control (SHAM) rats (n = 12), rats were fed a control diet (59% of food intake from carbohydrates, 7% from fat, 21% from protein, 13% from minerals and ash) for 12 weeks, b) High fat diet-fed control (HFD) group (n = 9), rats were fed a high fat diet (49% of food intake from carbohydrates, 17% from fat, 21% from protein, 13% from minerals and ash)for 12 weeks, c) Ovariectomized (OVX) rats (n = 14), rats were fed a control diet as SHAM rats, d) High fat diet- fed ovariectomized (OVX- HFD) rats (n = 13), rats were fed a high fat diet as HFD group. At the end of the experiment, blood samples were collected for calcium, phosphorus, and alkaline phosphatase (ALP) assays. Unilateral left perirenal fats were surgically removed and weighed. Specimens from right perirenal fats and tibia were isolated and processed for histological examination. Histomorphometric analysis of the tibia and visceral adipose tissue was also performed. RESULTS OVX, HFD, and OVX-HFD rats showed a significant increase in relative visceral fat weight, and plasma ALP, and a significant decrease in plasma calcium, and phosphorus levels compared to SHAM rats. Light microscopic examination of the tibia of the OVX rats revealed a significant decrease in the cortical bone thickness (CBT) and the trabecular bone thickness (TBT), and a significant increase in bone marrow adipose tissue compared to SHAM rats. In addition, there was a significant increase in the osteoclast number, and a significant decrease in the osteoblast number. The changes in bone marrow adipose tissue as well as osteoclast number were further accentuated in OVX-HFD groups. CONCLUSIONS Visceral obesity played a crucial role in the development of osteoporosis in ovariectomized rats through effects that might involve both osteoblasts and osteoclasts.
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Affiliation(s)
- NermineK Saleh
- Medical Physiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
| | - Noha A Nassef
- Medical Physiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mona K Shawky
- Medical Physiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Menna I Elshishiny
- Medical Physiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Hanan A Saleh
- Histology & Cell Biology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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Yuasa Y, Miyakoshi N, Kasukawa Y, Nagahata I, Akagawa M, Ono Y, Sato C, Tsuchie H, Nozaka K, Nagasawa H, Hongo M, Shimada Y. Effects of bazedoxifene and low-intensity aerobic exercise on bone and fat parameters in ovariectomized rats. J Bone Miner Metab 2020; 38:179-187. [PMID: 31587108 DOI: 10.1007/s00774-019-01045-5] [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] [Received: 05/13/2019] [Accepted: 08/29/2019] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Postmenopausal osteoporosis and dyslipidemia are well-known skeletal and metabolic changes in middle-aged women. We investigated the effects of combined treatments with a selective estrogen receptor modulator (SERM) and exercise on bone and fat parameters in ovariectomized (OVX) rats. MATERIALS AND METHODS Sixteen-week-old female Sprague-Dawley rats underwent bilateral ovariectomy, and rats were randomized to BZA (bazedoxifene at 0.3 mg/kg/day), Exe (treadmill exercise at 12-15 m/min, 60 min/day, 5 days/week), Comb (BZA and Exe), and Cont (control treated with vehicle and no exercise) groups 8 weeks after ovariectomy. After 4 or 8 weeks of treatment, bone mineral density (BMD) of the total femur and lumbar spine and whole-body percentage fat mass were determined by dual-energy X-ray absorptiometry, and mechanical testing of the femoral shaft, and bone and fat histomorphometric analyses of the proximal tibia were performed. RESULTS Treadmill exercise had decreased bone marrow adipocytes from 4 weeks of treatment and whole-body percentage fat mass at 8 weeks. BZA increased BMD at the lumbar spine and decreased the whole-body percentage fat mass from 4 weeks and bone marrow adipocytes at 8 weeks. Combination therapy increased BMD for the lumbar spine and decreased bone marrow adipocytes and whole-body percentage fat mass from 4 weeks. CONCLUSION Combination therapy with BZA and exercise appears effective to improve bone and fat parameters in OVX rats.
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Affiliation(s)
- Yusuke Yuasa
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan
| | - Naohisa Miyakoshi
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan.
| | - Yuji Kasukawa
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan
| | - Itsuki Nagahata
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan
| | - Manabu Akagawa
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan
| | - Yuichi Ono
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan
| | - Chiaki Sato
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan
| | - Hiroyuki Tsuchie
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan
| | - Koji Nozaka
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan
| | - Hiroyuki Nagasawa
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan
| | - Michio Hongo
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan
| | - Yoichi Shimada
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan
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Wong AK, Chandrakumar A, Whyte R, Reitsma S, Gillick H, Pokhoy A, Papaioannou A, Adachi JD. Bone Marrow and Muscle Fat Infiltration Are Correlated among Postmenopausal Women With Osteoporosis: The AMBERS Cohort Study. J Bone Miner Res 2020; 35:516-527. [PMID: 31675452 DOI: 10.1002/jbmr.3910] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 10/03/2019] [Accepted: 10/13/2019] [Indexed: 01/07/2023]
Abstract
Bone and muscle have shown to interact, but little is known about fat within bone and muscle. Clinical studies have isolated fat within bone and muscle using MRI. In this cross-sectional study, we hypothesized that bone marrow adiposity and muscle adiposity are related and that this relationship is associated with osteoporosis. Postmenopausal women aged 60 to 85 years were recruited as part of the Appendicular Muscle and Bone Extension Research Study (AMBERS). Participants completed dual-energy X-ray absorptiometry (DXA) of the hip and spine to diagnose osteoporosis. Muscle adiposity was measured with MRI at the 66% site of the leg. Fat segmentation was achieved using a semi-automated iterative threshold-optimizing algorithm (error < 5%). Peripheral quantitative computed tomography measured marrow density of the 4% distal tibia (surrogate for marrow fat) by threshold-based, edge-detection segmentations and by examining residuals from trabecular bone density regressed on trabecular tissue mineral density. Muscle adiposity from MRI was regressed on marrow density using linear regression. Models were further examined with an interaction with osteoporosis status. Among 312 women (aged 75.4 ± 5.9 years, body mass index [BMI] 29.5 ± 5.7 kg/m2 ), a larger amount of muscle fat was associated with lower marrow density at the 66% mid-tibia (B = 84.08 [27.56], p = 0.002) and at the 4% distal tibia (B = 129.17 [55.96], p = 0.022) after accounting for age, height, weight, average daily energy expenditure, hypertension, and diabetes. Interactions of this relationship with osteoporosis status were also significant. Upon probing these interactions, the relationships were significant only in women with osteoporosis but not in those without osteoporosis. Fat from bone marrow and muscle may be related to one another through the same phenomenon, which is likely also responsible for osteoporosis, but independent of hypertension and diabetes. More research should focus on the potential abnormalities in muscle and bone fat metabolism and mesenchymal cell commitment to fat within patients with osteoporosis. © 2019 American Society for Bone and Mineral Research.
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Affiliation(s)
- Andy K Wong
- CESHA, Joint Department of Medical Imaging, University Health Network, Toronto, Canada
- Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
- Rehabilitation Sciences Institute, University of Toronto, Toronto, Canada
| | - Abinaa Chandrakumar
- CESHA, Joint Department of Medical Imaging, University Health Network, Toronto, Canada
| | - Rachel Whyte
- CESHA, Joint Department of Medical Imaging, University Health Network, Toronto, Canada
- Rehabilitation Sciences Institute, University of Toronto, Toronto, Canada
| | - Shannon Reitsma
- Division of Rheumatology, Department of Medicine, McMaster University, Hamilton, Canada
| | - Hana Gillick
- Division of Rheumatology, Department of Medicine, McMaster University, Hamilton, Canada
| | - Anthony Pokhoy
- CESHA, Joint Department of Medical Imaging, University Health Network, Toronto, Canada
| | - Alexandra Papaioannou
- Geriatric Education and Research in Aging Sciences (GERAS) Centre, St. Peter's Hospital, Hamilton Health Sciences, Hamilton, Canada
| | - Jonathan D Adachi
- Division of Rheumatology, Department of Medicine, McMaster University, Hamilton, Canada
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40
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Tratwal J, Labella R, Bravenboer N, Kerckhofs G, Douni E, Scheller EL, Badr S, Karampinos DC, Beck-Cormier S, Palmisano B, Poloni A, Moreno-Aliaga MJ, Fretz J, Rodeheffer MS, Boroumand P, Rosen CJ, Horowitz MC, van der Eerden BCJ, Veldhuis-Vlug AG, Naveiras O. Reporting Guidelines, Review of Methodological Standards, and Challenges Toward Harmonization in Bone Marrow Adiposity Research. Report of the Methodologies Working Group of the International Bone Marrow Adiposity Society. Front Endocrinol (Lausanne) 2020; 11:65. [PMID: 32180758 PMCID: PMC7059536 DOI: 10.3389/fendo.2020.00065] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 01/31/2020] [Indexed: 12/14/2022] Open
Abstract
The interest in bone marrow adiposity (BMA) has increased over the last decade due to its association with, and potential role, in a range of diseases (osteoporosis, diabetes, anorexia, cancer) as well as treatments (corticosteroid, radiation, chemotherapy, thiazolidinediones). However, to advance the field of BMA research, standardization of methods is desirable to increase comparability of study outcomes and foster collaboration. Therefore, at the 2017 annual BMA meeting, the International Bone Marrow Adiposity Society (BMAS) founded a working group to evaluate methodologies in BMA research. All BMAS members could volunteer to participate. The working group members, who are all active preclinical or clinical BMA researchers, searched the literature for articles investigating BMA and discussed the results during personal and telephone conferences. According to the consensus opinion, both based on the review of the literature and on expert opinion, we describe existing methodologies and discuss the challenges and future directions for (1) histomorphometry of bone marrow adipocytes, (2) ex vivo BMA imaging, (3) in vivo BMA imaging, (4) cell isolation, culture, differentiation and in vitro modulation of primary bone marrow adipocytes and bone marrow stromal cell precursors, (5) lineage tracing and in vivo BMA modulation, and (6) BMA biobanking. We identify as accepted standards in BMA research: manual histomorphometry and osmium tetroxide 3D contrast-enhanced μCT for ex vivo quantification, specific MRI sequences (WFI and H-MRS) for in vivo studies, and RT-qPCR with a minimal four gene panel or lipid-based assays for in vitro quantification of bone marrow adipogenesis. Emerging techniques are described which may soon come to complement or substitute these gold standards. Known confounding factors and minimal reporting standards are presented, and their use is encouraged to facilitate comparison across studies. In conclusion, specific BMA methodologies have been developed. However, important challenges remain. In particular, we advocate for the harmonization of methodologies, the precise reporting of known confounding factors, and the identification of methods to modulate BMA independently from other tissues. Wider use of existing animal models with impaired BMA production (e.g., Pfrt-/-, KitW/W-v) and development of specific BMA deletion models would be highly desirable for this purpose.
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Affiliation(s)
- Josefine Tratwal
- Laboratory of Regenerative Hematopoiesis, Institute of Bioengineering and Swiss Institute for Experimental Cancer Research, Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Rossella Labella
- Tissue and Tumour Microenvironments Lab, The Kennedy Institute of Rheumatology, University of Oxford, Oxford, United Kingdom
| | - Nathalie Bravenboer
- Department of Clinical Chemistry, Amsterdam University Medical Centers, Vrije Universiteit, Amsterdam Movement Sciences, Amsterdam, Netherlands
- Section of Endocrinology, Department of Internal Medicine, Center for Bone Quality, Leiden University Medical Center, Leiden, Netherlands
| | - Greet Kerckhofs
- Biomechanics Lab, Institute of Mechanics, Materials and Civil Engineering, UCLouvain, Louvain-la-Neuve, Belgium
- Department Materials Engineering, KU Leuven, Leuven, Belgium
| | - Eleni Douni
- Laboratory of Genetics, Department of Biotechnology, Agricultural University of Athens, Athens, Greece
- Institute for Bioinnovation, Biomedical Sciences Research Center Alexander Fleming, Athens, Greece
| | - Erica L. Scheller
- Division of Bone and Mineral Diseases, Department of Medicine, Washington University, St. Louis, MO, United States
| | - Sammy Badr
- Univ. Lille, EA 4490 - PMOI - Physiopathologie des Maladies Osseuses Inflammatoires, Lille, France
- CHU Lille, Service de Radiologie et Imagerie Musculosquelettique, Lille, France
| | - Dimitrios C. Karampinos
- Department of Diagnostic and Interventional Radiology, Technical University of Munich, Munich, Germany
| | - Sarah Beck-Cormier
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France
- Université de Nantes, UFR Odontologie, Nantes, France
| | - Biagio Palmisano
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, United States
| | - Antonella Poloni
- Hematology, Department of Clinic and Molecular Science, Università Politecnica Marche-AOU Ospedali Riuniti, Ancona, Italy
| | - Maria J. Moreno-Aliaga
- Centre for Nutrition Research and Department of Nutrition, Food Science and Physiology, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
- IdiSNA, Navarra's Health Research Institute, Pamplona, Spain
- CIBERobn Physiopathology of Obesity and Nutrition, Centre of Biomedical Research Network, ISCIII, Madrid, Spain
| | - Jackie Fretz
- Department of Orthopaedics and Rehabilitation, Cellular and Developmental Biology, Yale University School of Medicine, New Haven, CT, United States
| | - Matthew S. Rodeheffer
- Department of Comparative Medicine and Molecular, Cellular and Developmental Biology, Yale University School of Medicine, New Haven, CT, United States
| | - Parastoo Boroumand
- Cell Biology Program, The Hospital for Sick Children, Toronto, ON, Canada
| | - Clifford J. Rosen
- Maine Medical Center Research Institute, Center for Clinical and Translational Research, Scarborough, ME, United States
| | - Mark C. Horowitz
- Department of Orthopaedics and Rehabilitation, Yale University School of Medicine, New Haven, CT, United States
| | - Bram C. J. van der Eerden
- Laboratory for Calcium and Bone Metabolism, Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Annegreet G. Veldhuis-Vlug
- Section of Endocrinology, Department of Internal Medicine, Center for Bone Quality, Leiden University Medical Center, Leiden, Netherlands
- Maine Medical Center Research Institute, Center for Clinical and Translational Research, Scarborough, ME, United States
- Jan van Goyen Medical Center/OLVG Hospital, Department of Internal Medicine, Amsterdam, Netherlands
- *Correspondence: Annegreet G. Veldhuis-Vlug
| | - Olaia Naveiras
- Laboratory of Regenerative Hematopoiesis, Institute of Bioengineering and Swiss Institute for Experimental Cancer Research, Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
- Hematology Service, Departments of Oncology and Laboratory Medicine, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
- Olaia Naveiras ;
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41
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Tratwal J, Bekri D, Boussema C, Sarkis R, Kunz N, Koliqi T, Rojas-Sutterlin S, Schyrr F, Tavakol DN, Campos V, Scheller EL, Sarro R, Bárcena C, Bisig B, Nardi V, de Leval L, Burri O, Naveiras O. MarrowQuant Across Aging and Aplasia: A Digital Pathology Workflow for Quantification of Bone Marrow Compartments in Histological Sections. Front Endocrinol (Lausanne) 2020; 11:480. [PMID: 33071956 PMCID: PMC7542184 DOI: 10.3389/fendo.2020.00480] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 06/17/2020] [Indexed: 12/12/2022] Open
Abstract
The bone marrow (BM) exists heterogeneously as hematopoietic/red or adipocytic/yellow marrow depending on skeletal location, age, and physiological condition. Mouse models and patients undergoing radio/chemotherapy or suffering acute BM failure endure rapid adipocytic conversion of the marrow microenvironment, the so-called "red-to-yellow" transition. Following hematopoietic recovery, such as upon BM transplantation, a "yellow-to-red" transition occurs and functional hematopoiesis is restored. Gold Standards to estimate BM cellular composition are pathologists' assessment of hematopoietic cellularity in hematoxylin and eosin (H&E) stained histological sections as well as volumetric measurements of marrow adiposity with contrast-enhanced micro-computerized tomography (CE-μCT) upon osmium-tetroxide lipid staining. Due to user-dependent variables, reproducibility in longitudinal studies is a challenge for both methods. Here we report the development of a semi-automated image analysis plug-in, MarrowQuant, which employs the open-source software QuPath, to systematically quantify multiple bone components in H&E sections in an unbiased manner. MarrowQuant discerns and quantifies the areas occupied by bone, adipocyte ghosts, hematopoietic cells, and the interstitial/microvascular compartment. A separate feature, AdipoQuant, fragments adipocyte ghosts in H&E-stained sections of extramedullary adipose tissue to render adipocyte area and size distribution. Quantification of BM hematopoietic cellularity with MarrowQuant lies within the range of scoring by four independent pathologists, while quantification of the total adipocyte area in whole bone sections compares with volumetric measurements. Employing our tool, we were able to develop a standardized map of BM hematopoietic cellularity and adiposity in mid-sections of murine C57BL/6 bones in homeostatic conditions, including quantification of the highly predictable red-to-yellow transitions in the proximal section of the caudal tail and in the proximal-to-distal tibia. Additionally, we present a comparative skeletal map induced by lethal irradiation, with longitudinal quantification of the "red-to-yellow-to-red" transition over 2 months in C57BL/6 femurs and tibiae. We find that, following BM transplantation, BM adiposity inversely correlates with kinetics of hematopoietic recovery and that a proximal to distal gradient is conserved. Analysis of in vivo recovery through magnetic resonance imaging (MRI) reveals comparable kinetics. On human trephine biopsies MarrowQuant successfully recognizes the BM compartments, opening avenues for its application in experimental, or clinical contexts that require standardized human BM evaluation.
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Affiliation(s)
- Josefine Tratwal
- Laboratory of Regenerative Hematopoiesis, Institute of Bioengineering and Institute for Experimental Cancer Research, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - David Bekri
- Laboratory of Regenerative Hematopoiesis, Institute of Bioengineering and Institute for Experimental Cancer Research, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Chiheb Boussema
- Laboratory of Regenerative Hematopoiesis, Institute of Bioengineering and Institute for Experimental Cancer Research, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Rita Sarkis
- Laboratory of Regenerative Hematopoiesis, Institute of Bioengineering and Institute for Experimental Cancer Research, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Nicolas Kunz
- Animal Imaging and Technology Core, Center for Biomedical Imaging, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Tereza Koliqi
- Laboratory of Regenerative Hematopoiesis, Institute of Bioengineering and Institute for Experimental Cancer Research, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Shanti Rojas-Sutterlin
- Laboratory of Regenerative Hematopoiesis, Institute of Bioengineering and Institute for Experimental Cancer Research, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Frédérica Schyrr
- Laboratory of Regenerative Hematopoiesis, Institute of Bioengineering and Institute for Experimental Cancer Research, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Daniel Naveed Tavakol
- Laboratory of Regenerative Hematopoiesis, Institute of Bioengineering and Institute for Experimental Cancer Research, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Vasco Campos
- Laboratory of Regenerative Hematopoiesis, Institute of Bioengineering and Institute for Experimental Cancer Research, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Erica L. Scheller
- Division of Bone and Mineral Diseases, Department of Internal Medicine, Washington University, Saint Louis, MO, United States
| | - Rossella Sarro
- Institute of Pathology, Lausanne University Hospital (CHUV), Lausanne University (UNIL), Lausanne, Switzerland
| | - Carmen Bárcena
- Department of Pathology, University Hospital 12 de Octubre, Madrid, Spain
| | - Bettina Bisig
- Institute of Pathology, Lausanne University Hospital (CHUV), Lausanne University (UNIL), Lausanne, Switzerland
| | - Valentina Nardi
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Laurence de Leval
- Institute of Pathology, Lausanne University Hospital (CHUV), Lausanne University (UNIL), Lausanne, Switzerland
| | - Olivier Burri
- Bioimaging and Optics Core Facility, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Olaia Naveiras
- Laboratory of Regenerative Hematopoiesis, Institute of Bioengineering and Institute for Experimental Cancer Research, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
- Department of Oncology, Hematology Service, Lausanne University Hospital (CHUV), Lausanne, Switzerland
- *Correspondence: Olaia Naveiras ;
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42
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Resulaj M, Polineni S, Meenaghan E, Eddy K, Lee H, Fazeli PK. Transdermal Estrogen in Women With Anorexia Nervosa: An Exploratory Pilot Study. JBMR Plus 2019; 4:e10251. [PMID: 31956852 PMCID: PMC6957987 DOI: 10.1002/jbm4.10251] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 10/29/2019] [Accepted: 11/04/2019] [Indexed: 01/10/2023] Open
Abstract
Anorexia nervosa (AN) is a psychiatric disorder characterized by self‐induced starvation, low body weight, and elevated levels of bone marrow adipose tissue (BMAT). BMAT is negatively associated with BMD in AN and more than 85% of women with AN have low bone mass and an increased risk of fracture. Although a majority of women with AN are amenorrheic, which is associated with low BMD, oral contraceptive pills, containing supraphysiologic doses of estrogen, are not effective in increasing bone mass. We performed a 6‐month, open‐label study of transdermal estradiol (0.045 mg/day) + levonorgestrel (0.015 mg/day) in 11 women with AN (mean age ± SEM: 37.2 ± 2.3 years) to investigate the effects of transdermal, physiologic doses of estrogen on BMD and BMAT in women with AN. We measured change in BMD by DXA, change in BMAT at the spine/hip by 1H‐magnetic resonance spectroscopy, and change in C‐terminal collagen cross‐links (CTX), P1NP, osteocalcin, IGF‐1, and sclerostin after 3 and 6 months of transdermal estrogen. Lumbar spine (2.0% ± 0.8%; p = 0.033) and lateral spine (3.2% ± 1.1%; p = 0.015) BMD increased after 6 months of transdermal estrogen. Lumbar spine BMAT decreased significantly after 3 months (−13.9 ± 6.0%; p = 0.046). Increases in lateral spine BMD were associated with decreases in CTX (p = 0.047). In conclusion, short‐term treatment with transdermal, physiologic estrogen increases spine BMD in women with AN. Future studies are needed to assess the long‐term efficacy of this treatment. © 2019 The Authors. JBMR Plus published by Wiley Periodicals, Inc. on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Megi Resulaj
- Neuroendocrine Unit Massachusetts General Hospital Boston MA USA
| | - Sai Polineni
- Neuroendocrine Unit Massachusetts General Hospital Boston MA USA
| | - Erinne Meenaghan
- Neuroendocrine Unit Massachusetts General Hospital Boston MA USA
| | - Kamryn Eddy
- Department of Psychiatry Massachusetts General Hospital Boston MA USA.,Harvard Medical School Boston MA USA
| | - Hang Lee
- Biostatistics Center Massachusetts General Hospital Boston MA USA.,Harvard Medical School Boston MA USA
| | - Pouneh K Fazeli
- Neuroendocrine Unit Massachusetts General Hospital Boston MA USA.,Harvard Medical School Boston MA USA.,University of Pittsburgh School of Medicine Pittsburgh PA USA
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43
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Beekman KM, Zwaagstra M, Veldhuis-Vlug AG, van Essen HW, den Heijer M, Maas M, Kerckhofs G, Parac-Vogt TN, Bisschop PH, Bravenboer N. Ovariectomy increases RANKL protein expression in bone marrow adipocytes of C3H/HeJ mice. Am J Physiol Endocrinol Metab 2019; 317:E1050-E1054. [PMID: 31526291 DOI: 10.1152/ajpendo.00142.2019] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Estrogen deficiency induces bone loss by increasing bone resorption, in part through upregulation of receptor activator of nuclear factor-κB ligand (RANKL). RANKL is secreted by osteoblasts and osteocytes, but more recently bone marrow (pre)adipocytes have also been shown to express RANKL. Estrogen deficiency increases bone marrow adipose tissue (BMAT). The aim of this study was to determine the effect of ovariectomy (OVX) on RANKL protein expression by bone marrow adipocytes in C3H/HeJ mice. Fourteen-week-old female C3H/HeJ mice (n = 20) were randomized to sham surgery (Sham) or OVX. After 4 wk animals were euthanized. BMAT volume fraction (BMAT volume/marrow volume) was quantified by polyoxometalate-based contrast-enhanced nano-computed tomography. The percentage of RANKL-positive bone marrow adipocytes (RANKL-positive bone marrow adipocytes/total adipocytes) and the percentage of RANKL-positive osteoblasts covering the bone surface (bone surface covered in RANKL-positive osteoblasts/total bone surface) were quantified in the distal metaphysis of immunohistochemically stained sections of the left femur. The effects of OVX were analyzed by Student's t test or Mann-Whitney U test. RANKL was detected in osteoblasts, osteocytes, and bone marrow adipocytes. OVX significantly increased mean percentage of RANKL-positive bone marrow adipocytes [mean (SD): Sham 42 (18)%; OVX 64 (12)%; P = 0.029] as well as BMAT volume/marrow volume [median (interquartile range): Sham 1.4 (4.9)%; OVX 7.2 (7.3)%; P = 0.008] compared with Sham. We show that OVX increased both the percentage of RANKL-positive bone marrow adipocytes and the total BMAT volume fraction in C3H/HeJ mice. Therefore, RANKL produced by bone marrow adipocytes could be an important contributor to OVX-induced bone loss in C3H/HeJ mice.
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Affiliation(s)
- Kerensa M Beekman
- Section of Endocrinology, Department of Internal Medicine, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Marleen Zwaagstra
- Research Laboratory Bone and Calcium Metabolism, Department of Clinical Chemistry, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Annegreet G Veldhuis-Vlug
- Department of Endocrinology and Metabolism, Amsterdam UMC, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Huib W van Essen
- Research Laboratory Bone and Calcium Metabolism, Department of Clinical Chemistry, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Martin den Heijer
- Section of Endocrinology, Department of Internal Medicine, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Mario Maas
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Greet Kerckhofs
- Biomechanics Lab, Institute of Mechanics, Materials, and Civil Engineering, Université catholique de Louvain, Louvain-la-Neuve, Belgium
- Department of Materials Engineering, KU Leuven, Leuven, Belgium
- Prometheus, Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium
| | - Tatjana N Parac-Vogt
- Laboratory of Bioinorganic Chemistry, Chemistry Department, KU Leuven, Leuven, Belgium
| | - Peter H Bisschop
- Department of Endocrinology and Metabolism, Amsterdam UMC, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Nathalie Bravenboer
- Research Laboratory Bone and Calcium Metabolism, Department of Clinical Chemistry, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
- Department of Internal Medicine, Leiden University Medical Center, Leiden, The Netherlands
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44
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Abstract
The skeleton harbors an array of lineage cells that have an essential role in whole body homeostasis. Adipocytes start the colonization of marrow space early in postnatal life, expanding progressively and influencing other components of the bone marrow through paracrine signaling. In this unique, closed, and hypoxic environment close to the endosteal surface and adjacent to the microvascular space the marrow adipocyte can store or provide energy, secrete adipokines, and target neighboring bone cells. Adipocyte progenitors can also migrate from the bone marrow to populate white adipose tissue, a process that accelerates during weight gain. The marrow adipocyte also has an endocrine role in whole body homeostasis through its varied secretome that targets distant adipose depots, skeletal muscle, and the nervous system. Further insights into the biology of this unique and versatile cell will undoubtedly lead to novel therapeutic approaches to metabolic and age-related disorders such as osteoporosis and diabetes mellitus.
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Affiliation(s)
- Francisco J A de Paula
- Department of Internal Medicine, Ribeirao Preto Medical School, University of São Paulo, São Paulo 14049-900, Brazil;
| | - Clifford J Rosen
- Center for Clinical and Translational Research, Maine Medical Center Research Institute, Scarborough, Maine 04074, USA;
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45
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Blom-Høgestøl IK, Mala T, Kristinsson JA, Hauge EM, Brunborg C, Gulseth HL, Eriksen EF. Changes in Bone Marrow Adipose Tissue One Year After Roux-en-Y Gastric Bypass: A Prospective Cohort Study. J Bone Miner Res 2019; 34:1815-1823. [PMID: 31216081 DOI: 10.1002/jbmr.3814] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 05/28/2019] [Accepted: 06/04/2019] [Indexed: 12/18/2022]
Abstract
Bone marrow adipose tissue (BMAT) has been postulated to mediate skeletal fragility in type 2 diabetes (T2D) and obesity. Roux-en-Y gastric bypass (RYGB) induces a substantial weight loss and resolution of comorbidities. However, the procedure induces increased bone turnover and fracture rates. No previous study has evaluated biopsy-measured BMAT fraction preoperatively and after RYGB. In this study, we aimed to investigate BMAT fraction of the hip in participants with and without T2D preoperatively and 1 year after RYGB and explore factors associated with BMAT change. Patients with morbid obesity scheduled for RYGB were examined preoperatively and 1 year after RYGB. Forty-four participants were included and preoperative examinations were possible in 35. Of these, 33 (94%) met for follow-up, 2 were excluded, and BMAT estimation was not possible in 1. Eighteen (60%) of the participants were females and 11 (37%) had T2D. Preoperative BMAT fraction was positively associated with glycosylated hemoglobin and negatively associated with areal bone mineral density (aBMD). After RYGB, BMAT fraction decreased from 40.4 ± 1.7% to 35.6 ± 12.8%, p = 0.042, or with mean percent change of 10.7% of preoperative BMAT fraction. Change in BMAT fraction was positively associated with change in body mass index (BMI) and total body fat. In females, we observed a mean percent reduction of 22.4 ± 19.6%, whereas in males BMAT increased with a mean percent of 6.8 ± 37.5%, p = 0.009. For males, changes in estradiol were associated with BMAT change; this was not observed for females. In participants with and without T2D, the mean percent BMAT reduction was 5.8 ± 36.9% and 13.5 ± 28.0%, respectively, p = 0.52. We conclude that a high BMAT seems to be associated with lower aBMD and poorer glycemic control in obese subjects. After RYGB, we observed a significant decrease in BMAT. The reduction in BMAT did not differ between participants with and without T2D, but appeared sex specific. © 2019 The Authors. Journal of Bone and Mineral Research Published by Wiley Periodicals, Inc.
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Affiliation(s)
- Ingvild Kristine Blom-Høgestøl
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Tom Mala
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway.,Department of Gastrointestinal Surgery and Paediatric Surgery, Oslo University Hospital, Oslo, Norway
| | - Jon A Kristinsson
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway.,Department of Gastrointestinal Surgery and Paediatric Surgery, Oslo University Hospital, Oslo, Norway
| | - Ellen-Margrethe Hauge
- Department of Rheumatology, Aarhus University Hospital, and Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Cathrine Brunborg
- Oslo Centre for Biostatistics and Epidemiology, Research Support Services, Oslo University Hospital, Oslo, Norway
| | - Hanne Løvdal Gulseth
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway.,Department of Chronic Diseases and Ageing, Norwegian Institute of Public Health, Oslo, Norway
| | - Erik Fink Eriksen
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
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46
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Sebo ZL, Rendina-Ruedy E, Ables GP, Lindskog DM, Rodeheffer MS, Fazeli PK, Horowitz MC. Bone Marrow Adiposity: Basic and Clinical Implications. Endocr Rev 2019; 40:1187-1206. [PMID: 31127816 PMCID: PMC6686755 DOI: 10.1210/er.2018-00138] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 04/03/2019] [Indexed: 12/14/2022]
Abstract
The presence of adipocytes in mammalian bone marrow (BM) has been recognized histologically for decades, yet, until recently, these cells have received little attention from the research community. Advancements in mouse transgenics and imaging methods, particularly in the last 10 years, have permitted more detailed examinations of marrow adipocytes than ever before and yielded data that show these cells are critical regulators of the BM microenvironment and whole-body metabolism. Indeed, marrow adipocytes are anatomically and functionally separate from brown, beige, and classic white adipocytes. Thus, areas of BM space populated by adipocytes can be considered distinct fat depots and are collectively referred to as marrow adipose tissue (MAT) in this review. In the proceeding text, we focus on the developmental origin and physiologic functions of MAT. We also discuss the signals that cause the accumulation and loss of marrow adipocytes and the ability of these cells to regulate other cell lineages in the BM. Last, we consider roles for MAT in human physiology and disease.
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Affiliation(s)
- Zachary L Sebo
- Department of Comparative Medicine, Yale University School of Medicine, New Haven, Connecticut.,Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, Connecticut
| | | | - Gene P Ables
- Orentreich Foundation for the Advancement of Science, Cold Spring, New York
| | - Dieter M Lindskog
- Department of Orthopaedics and Rehabilitation, Yale University School of Medicine, New Haven, Connecticut
| | - Matthew S Rodeheffer
- Department of Comparative Medicine, Yale University School of Medicine, New Haven, Connecticut.,Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, Connecticut
| | - Pouneh K Fazeli
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, Massachusetts
| | - Mark C Horowitz
- Department of Orthopaedics and Rehabilitation, Yale University School of Medicine, New Haven, Connecticut
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Hashimoto R, Miyamoto Y, Itoh S, Daida H, Okada T, Katoh Y. Phorbol 12-myristate 13-acetate (PMA) suppresses high Ca 2+-enhanced adipogenesis in bone marrow stromal cells. J Physiol Sci 2019; 69:741-748. [PMID: 31256364 PMCID: PMC10717529 DOI: 10.1007/s12576-019-00690-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 06/18/2019] [Indexed: 12/22/2022]
Abstract
We have previously reported that increased extracellular and intracellular Ca2+ lead to adipocyte accumulation in bone marrow stromal cells (BMSCs). However, strategies to suppress high Ca2+-enhanced adipocyte accumulation have not been reported. We examined the effects of the diacylglycerol analog phorbol 12-myristate 13-acetate (PMA) on proliferation and adipogenesis of mouse primary BMSCs. We used 9 mM CaCl2 and 100 nM ionomycin to increase extracellular Ca2+ and intracellular Ca2+, respectively. PMA suppressed the expression of both C/EBPα and PPARγ under normal adipogenesis, adipogenesis + CaCl2, and adipogenesis + ionomycin conditions. PMA enhanced proliferation under normal adipogenesis conditions but suppressed proliferation under adipogenesis + CaCl2 and adipogenesis + ionomycin conditions. PMA did not affect the accumulation of adipocytes under normal adipogenesis conditions but suppressed adipocyte accumulation under adipogenesis + CaCl2 and adipogenesis + ionomycin conditions. These results suggest that the PMA-dependent pathway is an important signaling pathway to suppress high Ca2+-enhanced adipocyte accumulation.
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Affiliation(s)
- Ryota Hashimoto
- Department of Physiology, Juntendo University Faculty of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8421, Japan.
| | - Yuki Miyamoto
- Department of Cardiology, Juntendo University Graduate School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Seigo Itoh
- Department of Cardiology, Juntendo University Graduate School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Hiroyuki Daida
- Department of Cardiology, Juntendo University Graduate School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Takao Okada
- Department of Physiology, Juntendo University Faculty of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Youichi Katoh
- Department of Cardiology, Juntendo University Graduate School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8421, Japan.
- Juntendo University Faculty of International Liberal Arts, Hongo 2-1-1, Bunkyo-ku, Tokyo, 112-8421, Japan.
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Bone Marrow Fat Physiology in Relation to Skeletal Metabolism and Cardiometabolic Disease Risk in Children With Cerebral Palsy. Am J Phys Med Rehabil 2019; 97:911-919. [PMID: 29894311 DOI: 10.1097/phm.0000000000000981] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Individuals with cerebral palsy exhibit neuromuscular complications and low physical activity levels. Adults with cerebral palsy exhibit a high prevalence of chronic diseases, which is associated with musculoskeletal deficits. Children with cerebral palsy have poor musculoskeletal accretion accompanied by excess bone marrow fat, which may lead to weaker bones. Mechanistic studies to determine the role of bone marrow fat on skeletal growth and maintenance and how it relates to systemic energy metabolism among individuals with cerebral palsy are lacking. In this review, we highlight the skeletal status in children with cerebral palsy and analyze the existing literature on the interactions among bone marrow fat, skeletal health, and cardiometabolic disease risk in the general population. Clinically vital questions are proposed, including the following: (1) Is the bone marrow fat in children with cerebral palsy metabolically distinct from typically developing children in terms of its lipid and inflammatory composition? (2) Does the bone marrow fat suppress skeletal acquisition? (3) Or, does it accelerate chronic disease development in children with cerebral palsy? (4) If so, what are the mechanisms? In conclusion, although inadequate mechanical loading may initiate poor skeletal development, subsequent expansion of bone marrow fat may further impede skeletal acquisition and increase cardiometabolic disease risk in those with cerebral palsy.
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Qi S, He J, Han H, Zheng H, Jiang H, Hu CY, Zhang Z, Li X. Anthocyanin-rich extract from black rice (Oryza sativa L. Japonica) ameliorates diabetic osteoporosis in rats. Food Funct 2019; 10:5350-5360. [PMID: 31393485 DOI: 10.1039/c9fo00681h] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Diabetic osteoporosis (DOP) is a systemic endocrine-metabolic osteopathy which has the characteristics of bone mineral density (BMD) reduction and bone microstructural destruction. Although anthocyanin-rich extract from black rice (AEBR) was reported to have a beneficial effect on diabetic rats, no studies have been performed on whether black rice anthocyanins are beneficial for diabetic osteoporosis. Therefore, in this study, a streptozotocin-induced diabetic rat model was established to investigate the protective effect of AEBR on diabetes-induced osteoporosis and its possible mechanism. AEBR at three doses (0.5, 1.0, and 2.0 g kg-1 d-1) were administered by oral gavage to diabetic rats for 8 weeks. The blood glucose, BMD, bone histomorphometry parameters, serum bone turnover biomarkers, bone marrow adipocyte numbers, as well as osteoprotegerin (OPG), runt-related transcription factor 2 (RUNX 2), and receptor activator of nuclear factor-κ B ligand (RANKL) protein expression in bone and serum were detected. The results indicated that AEBR dose-dependently decreased the blood glucose, increased the BMD, and decreased the serum bone turnover markers. The bone microstructure and osteoclast numbers in bone tissues returned to normal in the high AEBR dosage group; at the same time, the AEBR dose-dependently suppressed bone marrow adipogenesis. The RUNX 2 as well as the OPG/RANKL ratio in diabetic rats' bone tissues increased significantly in the AEBR treatment group. Our results indicate that AEBR administration can ameliorate bone loss caused by diabetes; this is mainly attributed to its inhibition of bone turnover, suppression of bone marrow adipogenesis, and up-regulation of RUNX 2 and the OPG/RANKL expression ratio.
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Affiliation(s)
- Shanshan Qi
- Vitamin D Research Institute, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China. and Shaanxi Black Organic Food Engineering Center, Hanzhong 723000, Shaanxi, China
| | - Jia He
- Vitamin D Research Institute, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China.
| | - Hao Han
- Shaanxi Provincial Bio-resource key Laboratory, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China.
| | - Hongxing Zheng
- Shaanxi Provincial Bio-resource key Laboratory, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China. and Shaanxi Black Organic Food Engineering Center, Hanzhong 723000, Shaanxi, China
| | - Hai Jiang
- Vitamin D Research Institute, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China.
| | - Ching Yuan Hu
- Shaanxi Provincial Bio-resource key Laboratory, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China.
| | - Zhijian Zhang
- Vitamin D Research Institute, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China. and Shaanxi Black Organic Food Engineering Center, Hanzhong 723000, Shaanxi, China
| | - Xinsheng Li
- Shaanxi Provincial Bio-resource key Laboratory, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China.
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50
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Zebaze R, Osima M, Bui M, Lukic M, Wang X, Ghasem-Zadeh A, Eriksen EF, Vais A, Shore-Lorenti C, Ebeling PR, Seeman E, Bjørnerem Å. Adding Marrow Adiposity and Cortical Porosity to Femoral Neck Areal Bone Mineral Density Improves the Discrimination of Women With Nonvertebral Fractures From Controls. J Bone Miner Res 2019; 34:1451-1460. [PMID: 30883870 DOI: 10.1002/jbmr.3721] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 02/24/2019] [Accepted: 03/01/2019] [Indexed: 11/08/2022]
Abstract
Advancing age is accompanied by a reduction in bone formation and remodeling imbalance, which produces microstructural deterioration. This may be partly caused by a diversion of mesenchymal cells towards adipocytes rather than osteoblast lineage cells. We hypothesized that microstructural deterioration would be associated with an increased marrow adiposity, and each of these traits would be independently associated with nonvertebral fractures and improve discrimination of women with fractures from controls over that achieved by femoral neck (FN) areal bone mineral density (aBMD) alone. The marrow adiposity and bone microstructure were quantified from HR-pQCT images of the distal tibia and distal radius in 77 women aged 40 to 70 years with a recent nonvertebral fracture and 226 controls in Melbourne, Australia. Marrow fat measurement from HR-pQCT images was validated using direct histologic measurement as the gold standard, at the distal radius of 15 sheep, with an agreement (R2 = 0.86, p < 0.0001). Each SD higher distal tibia marrow adiposity was associated with 0.33 SD higher cortical porosity, and 0.60 SD fewer, 0.24 SD thinner, and 0.72 SD more-separated trabeculae (all p < 0.05). Adjusted for age and FN aBMD, odds ratios (ORs) (95% CI) for fracture per SD higher marrow adiposity and cortical porosity were OR, 3.39 (95% CI, 2.14 to 5.38) and OR, 1.79 (95% CI, 1.14 to 2.80), respectively. Discrimination of women with fracture from controls improved when cortical porosity was added to FN aBMD and age (area under the receiver-operating characteristic curve [AUC] 0.778 versus 0.751, p = 0.006) or marrow adiposity was added to FN aBMD and age (AUC 0.825 versus 0.751, p = 0.002). The model including FN aBMD, age, cortical porosity, trabecular thickness, and marrow adiposity had an AUC = 0.888. Results were similar for the distal radius. Whether marrow adiposity and cortical porosity indices improve the identification of women at risk for fractures requires validation in prospective studies. © 2019 American Society for Bone and Mineral Research.
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Affiliation(s)
- Roger Zebaze
- Department of Medicine, School of Clinical Sciences, Monash Health, Monash University, Melbourne, Australia.,Departments of Medicine and Endocrinology, Austin Health, University of Melbourne, Melbourne, Australia
| | - Marit Osima
- Department of Community Medicine, UiT The Arctic University of Norway, Tromsø, Norway.,Department of Orthopaedic Surgery, University Hospital of North Norway, Tromsø, Norway
| | - Minh Bui
- Centre for Epidemiology and Biostatistics, School of Population and Global Health, University of Melbourne, Melbourne, Australia
| | - Marko Lukic
- Department of Community Medicine, UiT The Arctic University of Norway, Tromsø, Norway
| | - Xiaofang Wang
- Departments of Medicine and Endocrinology, Austin Health, University of Melbourne, Melbourne, Australia
| | - Ali Ghasem-Zadeh
- Departments of Medicine and Endocrinology, Austin Health, University of Melbourne, Melbourne, Australia
| | - Erik F Eriksen
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway.,Department of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Angela Vais
- Hudson Institute for Medical Research, Monash University, Melbourne, Australia
| | - Catherine Shore-Lorenti
- Department of Medicine, School of Clinical Sciences, Monash Health, Monash University, Melbourne, Australia
| | - Peter R Ebeling
- Department of Medicine, School of Clinical Sciences, Monash Health, Monash University, Melbourne, Australia
| | - Ego Seeman
- Departments of Medicine and Endocrinology, Austin Health, University of Melbourne, Melbourne, Australia.,Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, Australia
| | - Åshild Bjørnerem
- Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway.,Department of Obstetrics and Gynecology, University Hospital of North Norway, Tromsø, Norway
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