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Ishizu H, Shimizu T, Sakamoto Y, Toyama F, Kitahara K, Takayama H, Miyamoto M, Iwasaki N. Radiofrequency Echographic Multispectrometry (REMS) can Overcome the Effects of Structural Internal Artifacts and Evaluate Bone Fragility Accurately. Calcif Tissue Int 2024; 114:246-254. [PMID: 38127125 DOI: 10.1007/s00223-023-01167-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 11/16/2023] [Indexed: 12/23/2023]
Abstract
PURPOSE This study measured bone mineral density (BMD) in a Japanese population using the novel non-ionizing system using radiofrequency echographic multispectrometry (REMS) and compared the results with those obtained using traditional dual-energy X-ray absorptiometry (DXA). We aimed to identify any discrepancies between measurements obtained using these instruments and identify the influencing factors. METHODS This cross-sectional study examined patients with osteoporosis treated at a single center from April to August 2023. We examined BMD assessment by DXA and REMS in lumbar spine and proximal femur. Patients were categorized into two groups: those with discrepancies between lumbar spine BMD measured by DXA and REMS, and those without. Semiquantitative evaluation of vertebral fractures and abdominal aortic calcification scoring were also performed and compared between the two groups, along with various patient characteristics. RESULTS A total of 70 patients (88.6% female; mean age 78.39 ± 9.50 years) undergoing osteoporosis treatment were included in the study. A significant difference was noted between DXA and REMS measurement of BMD and T-scores, with REMS recording consistently lower values. The discrepancy group exhibited a higher incidence of multiple vertebral fractures and increased vascular calcification than the non-discrepancy group. Multivariate analysis indicated that diabetes mellitus, severe vertebral fractures, and increased abdominal aortic calcification scores were significantly associated with discrepancies in lumbar spine T-scores. CONCLUSION This study suggests that REMS may offer a more accurate measurement of BMD, overcoming the overestimation of BMD by DXA owing to factors such as vertebral deformities, abdominal aortic calcification, and diabetes mellitus.
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Affiliation(s)
- Hotaka Ishizu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15 Nishi-7, Kita-Ku, Sapporo, Hokkaido, 060-8638, Japan
- Department of Orthopaedic Surgery, Iwamizawa Hokushokai Hospital, Iwamizawa, Hokkaido, Japan
| | - Tomohiro Shimizu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15 Nishi-7, Kita-Ku, Sapporo, Hokkaido, 060-8638, Japan.
| | - Yuki Sakamoto
- Department of Radiological Technology, Iwamizawa Hokushokai Hospital, Iwamizawa, Hokkaido, Japan
| | - Fumi Toyama
- Department of Nursing, Iwamizawa Hokushokai Hospital, Iwamizawa, Hokkaido, Japan
| | - Keita Kitahara
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15 Nishi-7, Kita-Ku, Sapporo, Hokkaido, 060-8638, Japan
- Department of Orthopaedic Surgery, Iwamizawa Hokushokai Hospital, Iwamizawa, Hokkaido, Japan
| | - Hiroki Takayama
- Department of Orthopaedic Surgery, Iwamizawa Hokushokai Hospital, Iwamizawa, Hokkaido, Japan
| | - Moritaka Miyamoto
- Department of Orthopaedic Surgery, Iwamizawa Hokushokai Hospital, Iwamizawa, Hokkaido, Japan
| | - Norimasa Iwasaki
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15 Nishi-7, Kita-Ku, Sapporo, Hokkaido, 060-8638, Japan
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Scioli MG, Coniglione F, Greggi C, Evangelista L, Fiorelli E, Savino L, Ferlosio A, Piccirilli E, Gasbarra E, Iundusi R, Tarantino U, Orlandi A. Ascorbic acid reduces Ropivacaine-induced myotoxicity in cultured human osteoporotic skeletal muscle cells. BMC Musculoskelet Disord 2023; 24:576. [PMID: 37454045 DOI: 10.1186/s12891-023-06702-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 07/06/2023] [Indexed: 07/18/2023] Open
Abstract
BACKGROUND Osteoporosis is a worldwide health issue. Loss of bone mass is a potential risk factor for fragility fractures, and osteoporotic fractures place a considerable burden on society. Bone and muscle represent a functional unit in which the two tissues are intimately interconnected. Ropivacaine is a potent local anesthetic used in clinical practice for intraoperative anesthesia and postoperative pain management, in particular for hip surgery. When injected, Ropivacaine can diffuse locally through, in particular in surrounding skeletal muscle tissue, causing dose-dependent cytotoxicity, oxidative stress and myogenesis impairment. Based on those evidences, we focused our attention on Ropivacaine-induced cytotoxicity on cultured human myoblasts. METHODS Primary human myoblasts and myotubes from healthy subjects, osteoarthritic and osteoporotic patients (OP) were cultured in the presence of Ropivacaine. In some experiments, ascorbic acid (AsA) was added as a potent antioxidant agent. Cell viability and ROS levels were evaluated to investigate the myotoxic activity and Real-Time PCR and Western blot analysis carried out to investigate the expression of proliferation and myogenic markers. RESULTS A dose-dependent decrease of cell viability was observed after Ropivacaine exposure in both OP myoblasts and myotubes cultures, whereas those effects were not observed in the presence of Propofol, a general anesthetic. The adding of AsA reduced Ropivacaine negative effects in OP myoblast cultures. In addition, Ropivacaine exposure also increased ROS levels and upregulated Nox4 expression, an enzyme primarily implicated in skeletal muscle ROS generation. AsA treatment counteracted the oxidant activity of Ropivacaine and partially restored the basal condition in cultures. Positive myogenic markers, such as MyoD and Myf5, were downregulated by Ropivacaine exposure, whereas myostatin, a negative regulator of muscle growth and differentiation, was upregulated. The phenotypic deregulation of myogenic controllers in the presence of Ropivacaine was counteracted by AsA treatment. CONCLUSIONS Our findings highlight the oxidative stress-mediated myotoxic effect of Ropivacaine on human skeletal muscle tissue cell cultures, and suggest treatment with AsA as valid strategy to mitigate its negative effects and allowing an ameliorated functional skeletal muscle recovery in patients undergoing hip replacement surgery for osteoporotic bone fracture.
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Affiliation(s)
- Maria Giovanna Scioli
- Institute of Anatomic Pathology, Dept. of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, Rome, 00133, Italy.
| | - Filadelfo Coniglione
- Department of Clinical Sciences and Translational Medicine, University of Rome 'Tor Vergata, Rome, Italy
- Department of Surgical Sciences, Catholic University Our Lady of Good Counsel, Tirana, Albania
| | - Chiara Greggi
- Department of Clinical Sciences and Translational Medicine, University of Rome 'Tor Vergata, Rome, Italy
| | - Luca Evangelista
- Department of Clinical Sciences and Translational Medicine, University of Rome 'Tor Vergata, Rome, Italy
| | - Elena Fiorelli
- Institute of Anatomic Pathology, Dept. of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, Rome, 00133, Italy
| | - Luca Savino
- Institute of Anatomic Pathology, Dept. of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, Rome, 00133, Italy
| | - Amedeo Ferlosio
- Institute of Anatomic Pathology, Dept. of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, Rome, 00133, Italy
| | | | - Elena Gasbarra
- Department of Clinical Sciences and Translational Medicine, University of Rome 'Tor Vergata, Rome, Italy
- Department of Orthopedics and Traumatology, PTV Foundation, Rome, Italy
| | - Riccardo Iundusi
- Department of Clinical Sciences and Translational Medicine, University of Rome 'Tor Vergata, Rome, Italy
- Department of Orthopedics and Traumatology, PTV Foundation, Rome, Italy
| | - Umberto Tarantino
- Department of Clinical Sciences and Translational Medicine, University of Rome 'Tor Vergata, Rome, Italy
- Department of Orthopedics and Traumatology, PTV Foundation, Rome, Italy
| | - Augusto Orlandi
- Institute of Anatomic Pathology, Dept. of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, Rome, 00133, Italy
- Department of Biomedical Sciences, Catholic University Our Lady of Good Counsel, Tirana, Albania
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Greggi C, Cariati I, Onorato F, Iundusi R, Scimeca M, Tarantino U. PTX3 Effects on Osteogenic Differentiation in Osteoporosis: An In Vitro Study. Int J Mol Sci 2021; 22:ijms22115944. [PMID: 34073015 PMCID: PMC8198053 DOI: 10.3390/ijms22115944] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/20/2021] [Accepted: 05/26/2021] [Indexed: 11/16/2022] Open
Abstract
Pentraxin 3 (PTX3) is a glycoprotein belonging to the humoral arm of innate immunity that participates in the body’s defence mechanisms against infectious diseases. It has recently been defined as a multifunctional protein, given its involvement in numerous physiological and pathological processes, as well as in the pathogenesis of age-related diseases such as osteoporosis. Based on this evidence, the aim of our study was to investigate the possible role of PTX3 in both the osteoblastic differentiation and calcification process: to this end, primary osteoblast cultures from control and osteoporotic patients were incubated with human recombinant PTX3 (hrPTX3) for 72 h. Standard osteinduction treatment, consisting of β-glycerophosphate, dexamethasone and ascorbic acid, was used as control. Our results showed that treatment with hrPTX3, as well as with the osteogenic cocktail, induced cell differentiation towards the osteoblastic lineage. We also observed that the treatment not only promoted an increase in cell proliferation, but also the formation of calcification-like structures, especially in primary cultures from osteoporotic patients. In conclusion, the results reported here suggest the involvement of PTX3 in osteogenic differentiation, highlighting its osteoinductive capacity, like the standard osteoinduction treatment. Therefore, this study opens new and exciting perspectives about the possible role of PTX3 as biomarker and therapeutic agent for osteoporosis.
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Affiliation(s)
- Chiara Greggi
- Ph.D. in Medical-Surgical Biotechnologies and Translational Medicine, “Tor Vergata” University of Rome, via Montpellier 1, 00133 Rome, Italy; (C.G.); (I.C.)
- Department of Clinical Sciences and Translational Medicine, “Tor Vergata” University of Rome, via Montpellier 1, 00133 Rome, Italy
| | - Ida Cariati
- Ph.D. in Medical-Surgical Biotechnologies and Translational Medicine, “Tor Vergata” University of Rome, via Montpellier 1, 00133 Rome, Italy; (C.G.); (I.C.)
- Department of Clinical Sciences and Translational Medicine, “Tor Vergata” University of Rome, via Montpellier 1, 00133 Rome, Italy
| | - Federica Onorato
- Department of Orthopaedics and Traumatology, “Policlinico Tor Vergata” Foundation, viale Oxford 81, 00133 Rome, Italy; (F.O.); (R.I.)
| | - Riccardo Iundusi
- Department of Orthopaedics and Traumatology, “Policlinico Tor Vergata” Foundation, viale Oxford 81, 00133 Rome, Italy; (F.O.); (R.I.)
| | - Manuel Scimeca
- Department of Biomedicine and Prevention, “Tor Vergata” University of Rome, via Montpellier 1, 00133 Rome, Italy;
| | - Umberto Tarantino
- Department of Clinical Sciences and Translational Medicine, “Tor Vergata” University of Rome, via Montpellier 1, 00133 Rome, Italy
- Department of Orthopaedics and Traumatology, “Policlinico Tor Vergata” Foundation, viale Oxford 81, 00133 Rome, Italy; (F.O.); (R.I.)
- Correspondence:
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Clusterin silencing restores myoblasts viability and down modulates the inflammatory process in osteoporotic disease. J Transl Med 2019; 17:118. [PMID: 30967152 PMCID: PMC6457035 DOI: 10.1186/s12967-019-1868-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 03/30/2019] [Indexed: 12/13/2022] Open
Abstract
Background Targeting new molecular pathways leading to Osteoporosis (OP) and Osteoarthritis (OA) is a hot topic for drug discovery. Clusterin (CLU) is a glycoprotein involved in inflammation, proliferation, cell death, neoplastic disease, Alzheimer disease and aging. The present study focuses on the expression and the role of CLU in influencing the decrease of muscle mass and fiber senescence in OP-OA condition. Methods Vastus lateralis muscle biopsies were collected from 20 women with OP undergoing surgery for fragility hip fracture and 20 women undergoing arthroplasty for hip osteoarthritis. Results We found an overexpression of CLU in degenerated fibers in OP closely correlated with interleukin 6 (IL6) and histone H4 acetylation level. Conversely, in OA muscle tissues we observed a weak expression of CLU but no nuclear histone H4 acetylation. Ex vivo studies on isolated human myoblasts confirmed CLU overexpression in OP as compared to OA (p < 0.001). CLU treatment of isolated OP and OA myoblasts showed: modulation of proliferation, morphological changes, increase of histone H4 acetylation and induction of myogenin (MYOG) activation in OP myoblast only. In OP condition, functional knockdown of CLU by siRNA restores proliferative myoblasts capability and tissue damage repair, carried out by an evident upregulation of Transglutaminase 2 (TGM2). We also observed downmodulation of CX3CR1 expression with consequent impairing of the inflammatory infiltrate recruitment. Conclusions Results obtained suggest a potential role of CLU in OP by influencing myoblasts terminal differentiation, epigenetic regulation of muscle cell differentiation and senescence. Moreover, CLU silencing points out its role in the modulation of tissue damage repair and inflammation, proposing it as a new diagnostic marker for muscle degeneration and a potential target for specific therapeutic intervention in OP related sarcopenia.
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Impairment of PTX3 expression in osteoblasts: a key element for osteoporosis. Cell Death Dis 2017; 8:e3125. [PMID: 29022895 PMCID: PMC5682679 DOI: 10.1038/cddis.2017.514] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 07/19/2017] [Accepted: 08/30/2017] [Indexed: 01/21/2023]
Abstract
Pentraxin 3 (PTX3) is a multifunctional glycoprotein regulating inflammatory response, cell proliferation and migration and deposition and remodelling of the extracellular matrix by a variety of cells. In this study, we investigated the possible role of PTX3 in bone homeostasis. To this end, we compared the expression and function of PTX3 in human osteoblasts of osteoporotic, osteoarthritic patients and young subjects not affected by bone diseases. Immunohistochemical analysis performed on bone head biopsies showed a close association between bone health and the number of osteoblasts expressing PTX3. Noteworthy, the proportion of PTX3-positive osteoblasts resulted to be significantly lower in osteoporotic patients compared with both young patients and osteoarthritic patients of the same age. Ex vivo culture of osteoblasts isolated from the three groups of patients confirmed in vivo observation. Specifically, we observed rare runt-related transcription factor 2 (RUNX2) immunopositive osteoblasts expressing PTX3 in cell cultures derived from osteoporotic patients and western blotting analysis showed 80% reduction of PTX3 in the corresponding culture extracts compared with young and osteoarthritic patients. The treatment of human osteoblast primary cultures derived from young patients with anti-PTX3 antibody dramatically affected osteoblast behaviour. Indeed, they lost the morphological and molecular features typical of mature osteoblasts, acquiring fibroblast-like shape and highly decreasing nuclear factor kappa-B ligand (RANKL) and RUNX2 expression. Also, the inhibition of PTX3 negatively affected osteoblast proliferation and their ability to form cell clusters and microhydroxyapatite crystals. Altogether, these results suggest a central role of PTX3 in bone homeostasis showing its involvement in osteoblast proliferation, differentiation and function.
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Scimeca M, Feola M, Romano L, Rao C, Gasbarra E, Bonanno E, Brandi ML, Tarantino U. Heavy metals accumulation affects bone microarchitecture in osteoporotic patients. ENVIRONMENTAL TOXICOLOGY 2017; 32:1333-1342. [PMID: 27464007 DOI: 10.1002/tox.22327] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 07/06/2016] [Accepted: 07/07/2016] [Indexed: 05/20/2023]
Abstract
Bone metabolism is affected by mechanical, genetic, and environmental factors and plays a major role in osteoporosis. Nevertheless, the influence of environmental pollution on the occurrence of osteoporosis is still unclear and controversial. In this context, heavy metals are the most important pollutants capable to affect bone mass. The aim of this study was to investigate whether heavy metals accumulation in bone tissues could be related to the altered bone metabolism and architecture of osteoporotic patients. To this end, we analyzed 25 bone head biopsies osteoporotic patients and 25 bone head biopsies of osteoarthritic patients. Moreover we enrolled 15 patients underwent hip arthroplasty for high-energy hip fracture or osteonecrosis of the femoral head as a control group. Bone head biopsies were studied by BioQuant-osteo software, scanning electron microscopy and Energy Dispersive X-ray microanalysis. We found a prevalence of lead, cadmium and chromium accumulation in osteoporotic patients. Noteworthy, high levels of sclerostin, detected by immunohistochemistry, correlate with the accumulation of heavy metal found in the bone of osteoporotic patients, suggesting a molecular link between heavy metal accumulation and bone metabolism impairment. In conclusion, the presence of heavy metals into bone shed new light on the comprehension of the pathogenesis of osteoporosis since these elements could play a non redundant role in the development of osteoporosis at cellular/molecular and epigenetic level. Nevertheless, in vivo and in vitro studies need to better elucidate the molecular mechanism in which heavy metals can participate to osteoporosis. © 2016 Wiley Periodicals, Inc. Environ Toxicol 32: 1333-1342, 2017.
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Affiliation(s)
- Manuel Scimeca
- Department of Spatial Biomedicine, Italian Space Agency (ASI), via Del Politecnico Snc, Rome, 00133
- Anatomic Pathology Section, Department of Biomedicine and Prevention, University of Rome "Tor Vergata,", via Montpellier 1, Rome, 00133, Italy
| | - Maurizio Feola
- Department of Orthopedics and Traumatology, "Tor Vergata" University of Rome," "Policlinico Tor Vergata" Foundation, Viale Oxford 1, Rome, 00133, Italy
| | - Lorenzo Romano
- Department of Orthopedics and Traumatology, "Tor Vergata" University of Rome," "Policlinico Tor Vergata" Foundation, Viale Oxford 1, Rome, 00133, Italy
| | - Cecilia Rao
- Department of Orthopedics and Traumatology, "Tor Vergata" University of Rome," "Policlinico Tor Vergata" Foundation, Viale Oxford 1, Rome, 00133, Italy
| | - Elena Gasbarra
- Department of Orthopedics and Traumatology, "Tor Vergata" University of Rome," "Policlinico Tor Vergata" Foundation, Viale Oxford 1, Rome, 00133, Italy
| | - Elena Bonanno
- Anatomic Pathology Section, Department of Biomedicine and Prevention, University of Rome "Tor Vergata,", via Montpellier 1, Rome, 00133, Italy
- TMALab S.R.L., Spin-off of University of Tor Vergata, Department of Biomedicine and Prevenction, Rome, Italy
| | - Maria Luisa Brandi
- Department of Surgery and Translational Medicine, University of Florence, Florence, 50139, Italy
| | - Umberto Tarantino
- Department of Orthopedics and Traumatology, "Tor Vergata" University of Rome," "Policlinico Tor Vergata" Foundation, Viale Oxford 1, Rome, 00133, Italy
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Choi SM, Kim BC, Jung HJ, Yoon GJ, Kang KW, Choi KH, Lee SH, Park MS, Kim MK, Cho KH. The Association of Musculoskeletal Pain with Bone Mineral Density in Patients with Parkinson's Disease. Eur Neurol 2017; 77:123-129. [DOI: 10.1159/000455009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 12/08/2016] [Indexed: 11/19/2022]
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Abstract
PURPOSE OF REVIEW Osteoporosis and osteoarthritis are different diseases, with differences in risk factors, bone mineral density (BMD), BMI, phenotype, morbidity and mortality. We review new data on the role of bone metabolism in osteoporosis and osteoarthritis. RECENT FINDINGS The insights in the common convergent and divergent risk factors between osteoarthritis and osteoporosis have resulted in new findings on the role of BMD, BMI, falls, genetics and epigenetics in the pathophysiology of both diseases and on the increased fracture risk in osteoporosis and osteoarthritis. The relation between BMD, BMI and fracture risk in osteoarthritis is dependent on the stage, definition and location of the osteoarthritis and method of BMD measurement. It has been suggested that osteoarthritis should be further specified in terms of bone involvement. SUMMARY These new findings open the way to better understand the bone subtypes of osteoarthritis (osteoporotic, bone forming and erosive) and the common and different ways bone is involved in osteoporosis and osteoarthritis. Much can be expected from further prospective studies, when taking into account the heterogeneous nature of both osteoporosis and osteoarthritis.
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To assess differential features of marrow adiposity between postmenopausal women with osteoarthritis and osteoporosis using water/fat MRI. Menopause 2016; 24:105-111. [PMID: 27648658 DOI: 10.1097/gme.0000000000000732] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To assess the differential features of marrow adiposity between osteoarthritis (OA) and osteoporosis (OP) in postmenopausal women using water/fat MRI. METHODS This cross-sectional study included 97 postmenopausal women (OA [n = 25], OA + osteopenia [n = 27], OA + OP [n = 23], and OP groups [n = 22]). Water/fat MRI, dual-energy x-ray absorptiometry and biochemical analysis were performed to assess vertebral marrow fat fraction, bone mineral density, and bone biomarkers, respectively. Harris Hip Score was recorded to evaluate hip function. RESULTS There were significant differences in marrow fat content among the OA, OA + osteopenia, and OA + OP groups, between OP and OA participants with normal bone mass or osteopenia (all P < 0.05); no significant difference was observed between OA + OP and OP groups. Serum levels of leptin and β-Crosslaps in OA with normal bone mass and osteopenic OA groups were higher than in OP group. Marrow fat fraction was inversely correlated with Harris Hip Score (r = -0.371, P = 0.013), bone mineral density (r = -0.554, P = 0.009) and leptin levels (r = -0.610, P < 0.001). In multivariate regression analysis, marrow fat fraction was found to have a consistent and unchanged inverse association with leptin levels (Sβ = -0.311, P = 0.002) and bone mineral density (Sβ = -0.265, P = 0.006) after adjusting for age, years since menopause, and body mass index. CONCLUSIONS Postmenopausal OA with OP have a phenotype with higher marrow adiposity. OA and OP could coexist, for the presence of a specific subgroup of OA with increased marrow fat accumulation and high risk of developing OP.
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Tarquini C, Mattera R, Mastrangeli F, Agostinelli S, Ferlosio A, Bei R, Orlandi A, Tarantino U. Comparison of tissue transglutaminase 2 and bone biological markers osteocalcin, osteopontin and sclerostin expression in human osteoporosis and osteoarthritis. Amino Acids 2016; 49:683-693. [PMID: 27357308 DOI: 10.1007/s00726-016-2290-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 06/22/2016] [Indexed: 01/18/2023]
Abstract
Osteoporosis (OP) and osteoarthritis (OA) are the most common joint diseases, with a high incidence in the elderly population. OP is characterized by trabecular bone remodeling and reabsorption, whereas articular cartilage and subchondral bone remodeling are major features of OA. Although classically considered as independent or even conflicting processes, clinical coexistence of OP and OA was recently described. Transglutaminase 2 (TG2) expression is considered a biomarker of OA, but its role in osteoporotic bone remodeling is still uncertain. We investigated TG2 and bone biological markers (Osteocalcin, Osteopontin, and Sclerostin) in osteoporotic and osteoarthritic osteocartilagineous tissue (n = 54) and human chondrocyte cultures in vitro by immunohistochemistry, immunofluorescence and RT-PCR. Histomorphometric evaluation of bone trabecular remodeling was also performed. In cartilage, TG2 expression was faint in control and OP and significantly less than in OA and OP + OA chondrocytes; the opposite was found for Osteocalcin, whereas Osteopontin and Sclerostin expression was similar. In the subchondral trabecular bone, osteocytes/osteoblasts TG2 expression was slight and similar comparing control, OP, OA, and OP + OA group, whereas Osteocalcin and Osteopontin expression was lower in OP compared to control, OA and OP + OA. Increased TG2 and reduced Osteocalcin expression were maintained in human osteoarthritic chondrocytes in vitro. Histomorphometric analysis confirmed reduced trabecular bone mass in OP and OP + OA compared with OA patients. TG2 represented a suitable biomarker of osteoarthritic chondrocyte activation, whereas osteocalcin and osteopontin characterized osteoporotic osteocyte/osteoblast changes; differences were lost in OP + OA patients, suggesting careful consideration when coexistence of the two diseases occurs.
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Affiliation(s)
- Chiara Tarquini
- Anatomic Pathology, Department of Biomedicine and Prevention, Tor Vergata University of Rome, Rome, Italy.,Department of Orthopedics and Traumatology, Tor Vergata University of Rome, Rome, Italy
| | - Rosanna Mattera
- General Pathology, Department of Clinical Sciences and Translational Medicine, Tor Vergata University of Rome, Rome, Italy
| | - Francesca Mastrangeli
- Anatomic Pathology, Department of Biomedicine and Prevention, Tor Vergata University of Rome, Rome, Italy.,Department of Orthopedics and Traumatology, Tor Vergata University of Rome, Rome, Italy
| | - Sara Agostinelli
- Anatomic Pathology, Department of Biomedicine and Prevention, Tor Vergata University of Rome, Rome, Italy
| | - Amedeo Ferlosio
- Anatomic Pathology, Department of Biomedicine and Prevention, Tor Vergata University of Rome, Rome, Italy
| | - Roberto Bei
- General Pathology, Department of Clinical Sciences and Translational Medicine, Tor Vergata University of Rome, Rome, Italy
| | - Augusto Orlandi
- Anatomic Pathology, Department of Biomedicine and Prevention, Tor Vergata University of Rome, Rome, Italy. .,Policlinic of Tor Vergata of Rome, Rome, Italy.
| | - Umberto Tarantino
- Department of Orthopedics and Traumatology, Tor Vergata University of Rome, Rome, Italy.,Policlinic of Tor Vergata of Rome, Rome, Italy
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