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Leungsuwan DS, Chandran M. Bone Fragility in Diabetes and its Management: A Narrative Review. Drugs 2024:10.1007/s40265-024-02078-5. [PMID: 39103693 DOI: 10.1007/s40265-024-02078-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/24/2024] [Indexed: 08/07/2024]
Abstract
Bone fragility is a serious yet under-recognised complication of diabetes mellitus (DM) that is associated with significant morbidity and mortality. Multiple complex pathophysiological mechanisms mediating bone fragility amongst DM patients have been proposed and identified. Fracture risk in both type 1 diabetes (T1D) and type 2 diabetes (T2D) continues to be understated and underestimated by conventional risk assessment tools, posing an additional challenge to the identification of at-risk patients who may benefit from earlier intervention or preventive strategies. Over the years, an increasing body of evidence has demonstrated the efficacy of osteo-pharmacological agents in managing skeletal fragility in DM. This review seeks to elaborate on the risk of bone fragility in DM, the underlying pathogenesis and skeletal alterations, the approach to fracture risk assessment in DM, management strategies and therapeutic options.
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Affiliation(s)
| | - Manju Chandran
- Osteoporosis and Bone Metabolism Unit, Department of Endocrinology, Singapore General Hospital, 20 College Road, ACADEMIA, Singapore, 169856, Singapore.
- DUKE NUS Medical School, Singapore, Singapore.
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Nicot C, David G, Marc C, Hubert L, Rony L. Dedicated locking plate reduces non-union risk in open ankle fusion in obese patients. Orthop Traumatol Surg Res 2024:103901. [PMID: 38703887 DOI: 10.1016/j.otsr.2024.103901] [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: 02/16/2023] [Revised: 02/22/2024] [Accepted: 03/12/2024] [Indexed: 05/06/2024]
Abstract
INTRODUCTION Obesity is a growing public health concern. In ankle osteoarthritis, non-conservative treatment in advanced stages consists in ankle fusion, or else total ankle replacement, for which obesity is a relative contraindication. One of main complications of ankle fusion is non-union. Devascularization, obesity and fixation material are all factors involved in postoperative non-union, and have to be taken into account in surgical strategy for reliable results. The objective of this study was to compare the rate of ankle non-union in obese patients using quadruple screwing or a dedicated locking plate. The hypothesis was that the locking plate limits the risk of non-union in this population. METHODS All patients were obese (BMI>30kg/m2) and presented ankle osteoarthritis with>10° intra-articular deformity. The approach and joint preparation were performed via an anteromedial approach. Group S was composed of 32 patients, operated on by quadruple screwing; group P comprised 10 patients operated on using a dedicated locking plate. The main endpoint was a significant difference in the rate of non-union between the 2 groups. The secondary endpoint was improvement in pre- and 6-month postoperative AOFAS score. RESULTS Group S presented 31% non-union (10/32) and group P 0% (0/10) (p<0.05). Postoperative AOFAS score was significantly higher in group P: 67.8±10.4 [range, 40-92] vs. 83.1±8.0 [range, 64-92] (p<0.05). CONCLUSION The dedicated anterior locking plate is a technique of choice for ankle fusion in obese patients with intra-articular deformity>10°, to limit the risk of non-union. LEVEL OF EVIDENCE IV; retrospective study.
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Affiliation(s)
- Claire Nicot
- Département de chirurgie osseuse, CHU d'Angers, 4, rue Larrey, 49933 Angers cedex 9, France
| | - Guillaume David
- Département de chirurgie osseuse, CHU d'Angers, 4, rue Larrey, 49933 Angers cedex 9, France
| | - Clément Marc
- Département de chirurgie osseuse, CHU d'Angers, 4, rue Larrey, 49933 Angers cedex 9, France
| | - Laurent Hubert
- Département de chirurgie osseuse, CHU d'Angers, 4, rue Larrey, 49933 Angers cedex 9, France
| | - Louis Rony
- Département de chirurgie osseuse, CHU d'Angers, 4, rue Larrey, 49933 Angers cedex 9, France.
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Mi B, Zhang J, Jiang K, Meng H, Shan L, Hao D. Weight-adjusted waist index is a potential early predictor of degraded bone microarchitecture: A cross-sectional study of the national health and nutrition examination survey 2007-2008. J Orthop Surg (Hong Kong) 2024; 32:10225536241268827. [PMID: 39075015 DOI: 10.1177/10225536241268827] [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] [Indexed: 07/31/2024] Open
Abstract
PURPOSE This study aimed to investigate the association between weight-adjusted waist index (WWI) and trabecular bone score (TBS) and to assess the ability of WWI to identify individuals with degraded bone microarchitecture (DBMA). METHODS This cross-sectional study included participants aged 20 and older from the National Health and Nutrition Examination Survey. Furthermore, WWI was calculated by waist circumference and body weight. In addition, linear regression models were employed to investigate the association between WWI and TBS, while logistic regression models were employed to determine the association between WWI and the risk of DBMA. Finally, the performance of WWI in identifying individuals with DBMA was using the receiver operating characteristic (ROC) curves with area under the ROC curve. RESULTS A total of 4,179 participants with a mean age of 49.90 years were included in the final analysis. WWI was negatively associated with TBS and positively associated with an increased risk of DBMA. Furthermore, the associations between WWI and TBS, as well as DBMA risk, were stable regardless of stratification by age, sex, race, or body mass index (BMI). Moreover, WWI achieved good performances in identifying individuals with DBMA or low TBS. In addition, the combination of WWI and BMI showed better performances in identifying individuals with DBMA or low TBS than WWI or BMI alone. CONCLUSION WWI established a negative association with TBS and a positive association with the risk of DBMA. Clinicians should be alert to the potential risk of DBMA among individuals with high WWI. Moreover, WWI, alone or in combination with BMI, has the potential to serve as an early screening strategy in identifying individuals with DBMA.
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Affiliation(s)
- Baoguo Mi
- Department of Spine Surgery, Hong Hui Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Jitao Zhang
- Department of Spine Surgery, Hong Hui Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Kuo Jiang
- Department of Spine Surgery, Hong Hui Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Hailan Meng
- Department of Spine Surgery, Hong Hui Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Lequn Shan
- Department of Spine Surgery, Hong Hui Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Dingjun Hao
- Department of Spine Surgery, Hong Hui Hospital, Xi'an Jiaotong University, Xi'an, China
- Shaanxi Key Laboratory of Spine Bionic Treatment, Xi'an, China
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Martiniakova M, Biro R, Penzes N, Sarocka A, Kovacova V, Mondockova V, Omelka R. Links among Obesity, Type 2 Diabetes Mellitus, and Osteoporosis: Bone as a Target. Int J Mol Sci 2024; 25:4827. [PMID: 38732046 PMCID: PMC11084398 DOI: 10.3390/ijms25094827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 04/25/2024] [Accepted: 04/27/2024] [Indexed: 05/13/2024] Open
Abstract
Obesity, type 2 diabetes mellitus (T2DM) and osteoporosis are serious diseases with an ever-increasing incidence that quite often coexist, especially in the elderly. Individuals with obesity and T2DM have impaired bone quality and an elevated risk of fragility fractures, despite higher and/or unchanged bone mineral density (BMD). The effect of obesity on fracture risk is site-specific, with reduced risk for several fractures (e.g., hip, pelvis, and wrist) and increased risk for others (e.g., humerus, ankle, upper leg, elbow, vertebrae, and rib). Patients with T2DM have a greater risk of hip, upper leg, foot, humerus, and total fractures. A chronic pro-inflammatory state, increased risk of falls, secondary complications, and pharmacotherapy can contribute to the pathophysiology of aforementioned fractures. Bisphosphonates and denosumab significantly reduced the risk of vertebral fractures in patients with both obesity and T2DM. Teriparatide significantly lowered non-vertebral fracture risk in T2DM subjects. It is important to recognize elevated fracture risk and osteoporosis in obese and T2DM patients, as they are currently considered low risk and tend to be underdiagnosed and undertreated. The implementation of better diagnostic tools, including trabecular bone score, lumbar spine BMD/body mass index (BMI) ratio, and microRNAs to predict bone fragility, could improve fracture prevention in this patient group.
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Affiliation(s)
- Monika Martiniakova
- Department of Zoology and Anthropology, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, 949 01 Nitra, Slovakia; (R.B.); (V.K.)
| | - Roman Biro
- Department of Zoology and Anthropology, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, 949 01 Nitra, Slovakia; (R.B.); (V.K.)
| | - Noemi Penzes
- Department of Botany and Genetics, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, 949 01 Nitra, Slovakia; (N.P.); (A.S.); (V.M.); (R.O.)
| | - Anna Sarocka
- Department of Botany and Genetics, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, 949 01 Nitra, Slovakia; (N.P.); (A.S.); (V.M.); (R.O.)
| | - Veronika Kovacova
- Department of Zoology and Anthropology, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, 949 01 Nitra, Slovakia; (R.B.); (V.K.)
| | - Vladimira Mondockova
- Department of Botany and Genetics, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, 949 01 Nitra, Slovakia; (N.P.); (A.S.); (V.M.); (R.O.)
| | - Radoslav Omelka
- Department of Botany and Genetics, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, 949 01 Nitra, Slovakia; (N.P.); (A.S.); (V.M.); (R.O.)
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Goel H, Binkley N, Boggild M, Chan WP, Leslie WD, McCloskey E, Morgan SL, Silva BC, Cheung AM. Clinical Use of Trabecular Bone Score: The 2023 ISCD Official Positions. J Clin Densitom 2024; 27:101452. [PMID: 38228014 DOI: 10.1016/j.jocd.2023.101452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Osteoporosis can currently be diagnosed by applying the WHO classification to bone mineral density (BMD) assessed by dual-energy x-ray absorptiometry (DXA). However, skeletal factors other than BMD contribute to bone strength and fracture risk. Lumbar spine TBS, a grey-level texture measure which is derived from DXA images has been extensively studied, enhances fracture prediction independent of BMD and can be used to adjust fracture probability from FRAX® to improve risk stratification. The purpose of this International Society for Clinical Densitometry task force was to review the existing evidence and develop recommendations to assist clinicians regarding when and how to perform, report and utilize TBS. Our review concluded that TBS is most likely to alter clinical management in patients aged ≥ 40 years who are close to the pharmacologic intervention threshold by FRAX. The TBS value from L1-L4 vertebral levels, without vertebral exclusions, should be used to calculate adjusted FRAX probabilities. L1-L4 vertebral levels can be used in the presence of degenerative changes and lumbar compression fractures. It is recommended not to report TBS if extreme structural or pathological artifacts are present. Monitoring and reporting TBS change is unlikely to be helpful with the current version of the TBS algorithm. The next version of TBS software will include an adjustment based upon directly measured tissue thickness. This is expected to improve performance and address some of the technical factors that affect the current algorithm which may require modifications to these Official Positions as experience is acquired with this new algorithm.
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Affiliation(s)
| | - Neil Binkley
- University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Miranda Boggild
- University of Toronto, Department of Medicine, Toronto, Canada
| | - Wing P Chan
- Department of Radiology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan; and Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - William D Leslie
- Department of Internal Medicine, University of Manitoba, Winnipeg, Canada
| | - Eugene McCloskey
- Centre for Metabolic Bone Diseases, University of Sheffield Medical School, Sheffield, UK
| | - Sarah L Morgan
- University of Alabama at Birmingham, Osteoporosis Prevention and Treatment Clinic and DXA Facility, Birmingham, AL, United States
| | - Barbara C Silva
- Medical School, Centro Universitario de Belo Horizonte (UniBH), MG, Brazil Bone Metabolic diseases Unit, Santa Casa Hospital, Belo Horizonte, MG, Brazil Clinic of Endocrinology, Felicio Rocho Hospital, Belo Horizonte, MG, Brazil
| | - Angela M Cheung
- Centre of Excellence in Skeletal Health Assessment, University of Toronto, Toronto, Ontario, Canada; Osteoporosis Program, University Health Network and Sinai Health System, Toronto, Ontario, Canada
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Ságová I, Mokáň M, Tonhajzerová I, Rončáková M, Vaňuga P. Age, body composition parameters and glycaemic control contribute to trabecular bone score deterioration in acromegaly more than disease activity. Front Endocrinol (Lausanne) 2023; 14:1197725. [PMID: 37670889 PMCID: PMC10475557 DOI: 10.3389/fendo.2023.1197725] [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: 03/31/2023] [Accepted: 06/30/2023] [Indexed: 09/07/2023] Open
Abstract
Introduction Impairment of bone structure in patients with acromegaly (AP) varies independently of bone mineral density (BMD). Body composition parameters, which are altered in patients with acromegaly, are important determinants of bone strength. Purpose The aim of this study was to examine BMD and lumbar trabecular bone score (TBS) by dual-energy X-ray absorptiometry (DXA) and to assess its relationship with disease activity, age, glucose metabolism, and body composition parameters. Methods This cross-sectional prospective study involved 115 patients with acromegaly (70 F, 45 M) and 78 healthy controls (CON) (53 F, 25 M) matched for age, gender, and BMI. Bone mineral density, TBS and body composition parameters were measured using DXA. Results AP presented with lower TBS compared to CON (1.2 ± 0.1 v 1.31 ± 0.1, P< 0.001). No significant correlation was observed between IGF-1/GH levels and TBS. Age, glycated haemoglobin, BMI, waist circumference, fat mass, and lean mass negatively correlated with TBS in both sexes. Multiple linear regression analysis of all these parameters revealed age and waist circumference as independent significant predictors of TBS in AP. We did not find difference in BMD (lumbar and femoral sites) between AP and CON nor between active and controlled AP. We observed negative correlation between age and BMD of the femoral neck and total hip (P < 0.001). Testosterone levels in males, BMI, waist circumference, fat mass, and lean mass positively correlated with BMD in AP, with stronger correlation between lean mass and BMD compared to fat mass. Conclusion Patients with acromegaly have lower TBS than controls, confirming impaired bone microarchitecture in acromegaly regardless of BMD. Age, body composition parameters and glucose metabolism contribute to TBS deterioration in AP more than disease activity itself.
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Affiliation(s)
- Ivana Ságová
- Department of Endocrinology, National Institute of Endocrinology and Diabetology, Ľubochňa, Slovakia
- Comenius University Jessenius Faculty of Medicine, 1st Department of Internal Medicine, University Hospital Martin, Martin, Slovakia
| | - Marián Mokáň
- Comenius University Jessenius Faculty of Medicine, 1st Department of Internal Medicine, University Hospital Martin, Martin, Slovakia
| | - Ingrid Tonhajzerová
- Comenius University Jessenius Faculty of Medicine, Department of Physiology, Martin, Slovakia
| | - Marianna Rončáková
- Department of Endocrinology, National Institute of Endocrinology and Diabetology, Ľubochňa, Slovakia
| | - Peter Vaňuga
- Department of Endocrinology, National Institute of Endocrinology and Diabetology, Ľubochňa, Slovakia
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Oprea TE, Barbu CG, Martin SC, Sarbu AE, Duta SG, Nistor IM, Fica S. Degraded Bone Microarchitecture in Women with PHPT-Significant Predictor of Fracture Probability. Clin Med Insights Endocrinol Diabetes 2023; 16:11795514221145840. [PMID: 36698384 PMCID: PMC9869236 DOI: 10.1177/11795514221145840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 11/29/2022] [Indexed: 01/22/2023] Open
Abstract
Introduction Patients with primary hyperparathyroidism (PHPT) experience bone mineral density (BMD) loss and trabecular bone score (TBS) alteration, which current guidelines recommend assessing. Considering TBS alongside BMD for a 10-year fracture risk assessment (FRAX) may improve PHPT management. Design Retrospective, cross-sectional study composed of 49 Caucasian females (62 ± 10.6 years, 27.7 ± 0.87 kg/m2) with PHPT and 132 matched control subjects (61.3 ± 10.5 years, 27.5 ± 0.49 kg/m2) evaluated in 3 years. We assessed lumbar spine (LS) and femoral neck (FN) BMD, T and Z scores (GE Healthcare Lunar Osteodensitometer) and TBS (iNsight 1.8), major osteoporotic fracture (MOF), and hip FRAX. Results Patients with PHPT had statistically lower mean values for lumbar spine bone mineral density (LS BMD) (0.95 ± 0.25 vs 1.01 ± 0.14 g/cm2, P = .01), LS T-scores (-2 ± 0.2 vs -1.4 ± 0.1 SD, P = .009), LS Z scores (-0.9 ± 0.19 vs -0.1 ± 0.11 SD, P = .009), femoral neck bone mineral density (FN BMD) (0.79 ± 0.02 vs 0.83 ± 0.01 g/cm2, P = .02), FN T-scores (-1.8 ± 0.13 vs -1.5 ± 0.07 SD, P = .017), FN Z scores (-0.51 ± 0.87 vs -0.1 ± 0.82 SD, P = .006), and TBS (0.95 ± 0.25 vs 1.01 ± 0.14 g/cm2, P = .01) compared with control subjects. 22.4% of patients with PHPT had degraded microarchitecture (TBS < 1.2) vs. 7.6% in control group (χ2 = 0.008). PHPT proved to be a covariate with unique contribution (P = .031) alongside LS BMD (P = .040) in a linear regression model [R 2 = 0.532, F(4,16) = 4.543] for TBS < 1.2. TBS adjustment elevated MOF FRAX both for PHPT (4.35 ± 0.6% vs 5.25% ± 0.73%, P < .001) and control groups (4.5 ± 0.24% vs 4.7% ± 0.26%, P < .001) compared with BMD-bases FRAX, but also increased differently between the 2 study groups (1.1-folds for PHPT patients and 1.04 for control subjects, P = .034). Conclusion Compared with control, TBS-adjusted FRAX provides significantly higher MOF risk than BMD-based FRAX in PHPT women.
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Affiliation(s)
- Theodor Eugen Oprea
- Department of Endocrinology, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania.,Municipal Hospital, Oltenita, Romania
| | - Carmen Gabriela Barbu
- Department of Endocrinology, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania.,Department of Endocrinology, Elias University and Emergency Hospital, Bucharest, Romania
| | - Sorina Carmen Martin
- Department of Endocrinology, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania.,Department of Endocrinology, Elias University and Emergency Hospital, Bucharest, Romania
| | - Anca Elena Sarbu
- Department of Endocrinology, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania.,Department of Endocrinology, Elias University and Emergency Hospital, Bucharest, Romania
| | - Simona Gabriela Duta
- Department of Endocrinology, Elias University and Emergency Hospital, Bucharest, Romania
| | - Irina Manuela Nistor
- Department of Endocrinology, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania
| | - Simona Fica
- Department of Endocrinology, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania.,Department of Endocrinology, Elias University and Emergency Hospital, Bucharest, Romania
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Holanda N, Crispim N, Carlos I, Moura T, Nóbrega E, Bandeira F. Musculoskeletal effects of obesity and bariatric surgery – a narrative review. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2022; 66:621-632. [PMID: 36382751 PMCID: PMC10118826 DOI: 10.20945/2359-3997000000551] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Obesity affects several areas of the human body, leading to increased morbidity and mortality and the likelihood of other diseases, such as type 2 diabetes mellitus, cardiovascular diseases and musculoskeletal disorders. These conditions predispose to bone fractures and sarcopenic obesity, defined by the presence of an obesity-associated decrease in muscle mass and strength. Both bone fragility and sarcopenic obesity disease are consequences of several factors, such as a low degree of chronic inflammation, insulin resistance, hormonal changes, nutritional deficiencies, ectopic fat deposits and sedentary lifestyle. The diagnosis of obesity-related musculoskeletal disorders is limited by the lack of sarcopenia criteria and lower accuracy of bone mineral density measurement by dual-energy X-ray absorptiometry in overweight people. Reducing body weight provides undeniable benefits to this population, however treating cases of severe obesity with bariatric surgery can cause even greater damage to bone and muscle health, especially in the long term. The mechanisms involved in this process are not yet fully understood, but factors related to nutrient malabsorption and mechanical discharge as well as changes in gut hormones, adipokines and bone marrow adiposity should be taken into account. Depending on the surgical technique performed, greater musculoskeletal damage may occur, especially in cases of malabsorptive surgeries such as Roux-en-Y gastric bypass, when compared to restrictive techniques such as sleeve gastrectomy. This difference is probably due to greater weight loss, nutrient malabsorption and important hormonal changes that occur as a consequence of the diversion of intestinal transit and loss of greater absorptive surface. Thus, people undergoing bariatric procedures, especially malabsorptive ones, should have their musculoskeletal health supervised to allow early diagnosis and appropriate therapeutic interventions to prevent osteoporotic fractures and preserve the functionality of the skeletal muscles.
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Integrative Analysis of Exosomal miR-452 and miR-4713 Downregulating NPY1R for the Prevention of Childhood Obesity. DISEASE MARKERS 2022; 2022:2843353. [PMID: 35401881 PMCID: PMC8986441 DOI: 10.1155/2022/2843353] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 02/17/2022] [Accepted: 02/28/2022] [Indexed: 12/25/2022]
Abstract
Neuropeptides are associated with childhood obesity and exploring their regulatory mechanisms may reveal new insights for novel treatments. Childhood obesity data were downloaded from the GEO database and were used to screen for differentially expressed neuropeptides in patients with obesity. NPY1R expression was significantly upregulated in children with obesity compared to children without obesity (p < 0.05). The GEO database was used to filter differentially expressed miRNAs in patients with obesity. And hsa-mir-4713 and hsa-mir-452 were found significantly downregulated in adipose tissue. The GEO, TRRUST, and TFacts databases were used to screen all transcription factors for differentially expressed genes (DEGs). The potential regulatory networks between the differentially expressed miRNAs, TFs, and neuropeptides were mapped. In the constructed NPY1R regulatory network, the transcription factors TCF4, HEY1, and GATA3 are significantly associated with NPY1R. TCF4 and HEY1 were positively correlated with NPY1R, while GATA3 was negatively correlated with NPY1R. In the clinical peripheral blood samples, NPY1R, TCF4, and HEY1 were significantly more expressed in the obesity and the obesity with fracture group compared to the control group, while there was no statistically significant difference between the obesity group and the obesity with fracture group in terms of expression. The expression of GATA3, miR-452, and miR-4713 was also significantly lower in the obesity and the obesity with fracture groups when compared to the NC group. Therefore, NPY1R, TCF4, HEY1, GATA3, miR-452, and miR-4713 may be risk factors for fracture in obese children. The potential NPY1R regulatory function was exerted by two pathways: positive regulation caused by TCF4 and HEY1 acting on miR-4713 and negative regulation via GATA3 acting on miR-452. Potential NPY1R-related targets for the treatment of childhood obesity were provided in this study.
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Tozzi R, Masi D, Cipriani F, Contini S, Gangitano E, Spoltore ME, Barchetta I, Basciani S, Watanabe M, Baldini E, Ulisse S, Lubrano C, Gnessi L, Mariani S. Circulating SIRT1 and Sclerostin Correlates with Bone Status in Young Women with Different Degrees of Adiposity. Nutrients 2022; 14:nu14050983. [PMID: 35267956 PMCID: PMC8912833 DOI: 10.3390/nu14050983] [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] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 11/28/2022] Open
Abstract
Sirtuin1 (SIRT1) and sclerostin play important roles in adipose tissue and bone metabolism. We evaluated the circulating SIRT1 and sclerostin relationship with mass and quality of bone while considering the degree of adiposity. Sixty-six premenopausal women (16 underweight, 25 normal weight and 25 with obesity), aged <50 years, were enrolled. Plasma SIRT1, sclerostin and DXA body composition (total fat mass (FM), abdominal visceral adipose tissue, lean mass, trabecular bone score (TBS) and lumbar spine and femoral neck (FN) bone mineral density (BMD)) were assessed. The patients with obesity showed the lowest SIRT1 and TBS values and the highest sclerostin concentrations; BMD increased with FM and BMI and had an inverse association with SIRT1. Sclerostin was negatively correlated with SIRT1 (ρ = −0.37, p = 0.002). When spine BMD, FN BMD and TBS were standardized for BMI, a positive correlation with SIRT1 and a negative correlation with sclerostin were seen (p < 0.005). In the regression analysis, sclerostin was the best independent, negative predictor for BMD and TBS, while SIRT1 directly predicted TBS (p < 0.05). In conclusion, blood measurement of SIRT1 and sclerostin could represent a snapshot of the bone status that, taking into account the degree of adiposity, may reduce the interference of confounding factors in the interpretation of bone health parameters.
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Affiliation(s)
- Rossella Tozzi
- Department of Molecular Medicine, “Sapienza” University of Rome, 00161 Rome, Italy;
| | - Davide Masi
- Department of Experimental Medicine, Section of Medical Physiopathology, Food Science and Endocrinology, “Sapienza” University of Rome, 00161 Rome, Italy; (D.M.); (F.C.); (S.C.); (E.G.); (M.E.S.); (I.B.); (S.B.); (M.W.); (C.L.); (L.G.)
| | - Fiammetta Cipriani
- Department of Experimental Medicine, Section of Medical Physiopathology, Food Science and Endocrinology, “Sapienza” University of Rome, 00161 Rome, Italy; (D.M.); (F.C.); (S.C.); (E.G.); (M.E.S.); (I.B.); (S.B.); (M.W.); (C.L.); (L.G.)
| | - Savina Contini
- Department of Experimental Medicine, Section of Medical Physiopathology, Food Science and Endocrinology, “Sapienza” University of Rome, 00161 Rome, Italy; (D.M.); (F.C.); (S.C.); (E.G.); (M.E.S.); (I.B.); (S.B.); (M.W.); (C.L.); (L.G.)
| | - Elena Gangitano
- Department of Experimental Medicine, Section of Medical Physiopathology, Food Science and Endocrinology, “Sapienza” University of Rome, 00161 Rome, Italy; (D.M.); (F.C.); (S.C.); (E.G.); (M.E.S.); (I.B.); (S.B.); (M.W.); (C.L.); (L.G.)
| | - Maria Elena Spoltore
- Department of Experimental Medicine, Section of Medical Physiopathology, Food Science and Endocrinology, “Sapienza” University of Rome, 00161 Rome, Italy; (D.M.); (F.C.); (S.C.); (E.G.); (M.E.S.); (I.B.); (S.B.); (M.W.); (C.L.); (L.G.)
| | - Ilaria Barchetta
- Department of Experimental Medicine, Section of Medical Physiopathology, Food Science and Endocrinology, “Sapienza” University of Rome, 00161 Rome, Italy; (D.M.); (F.C.); (S.C.); (E.G.); (M.E.S.); (I.B.); (S.B.); (M.W.); (C.L.); (L.G.)
| | - Sabrina Basciani
- Department of Experimental Medicine, Section of Medical Physiopathology, Food Science and Endocrinology, “Sapienza” University of Rome, 00161 Rome, Italy; (D.M.); (F.C.); (S.C.); (E.G.); (M.E.S.); (I.B.); (S.B.); (M.W.); (C.L.); (L.G.)
| | - Mikiko Watanabe
- Department of Experimental Medicine, Section of Medical Physiopathology, Food Science and Endocrinology, “Sapienza” University of Rome, 00161 Rome, Italy; (D.M.); (F.C.); (S.C.); (E.G.); (M.E.S.); (I.B.); (S.B.); (M.W.); (C.L.); (L.G.)
| | - Enke Baldini
- Department of Surgical Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (E.B.); (S.U.)
| | - Salvatore Ulisse
- Department of Surgical Sciences, “Sapienza” University of Rome, 00161 Rome, Italy; (E.B.); (S.U.)
| | - Carla Lubrano
- Department of Experimental Medicine, Section of Medical Physiopathology, Food Science and Endocrinology, “Sapienza” University of Rome, 00161 Rome, Italy; (D.M.); (F.C.); (S.C.); (E.G.); (M.E.S.); (I.B.); (S.B.); (M.W.); (C.L.); (L.G.)
| | - Lucio Gnessi
- Department of Experimental Medicine, Section of Medical Physiopathology, Food Science and Endocrinology, “Sapienza” University of Rome, 00161 Rome, Italy; (D.M.); (F.C.); (S.C.); (E.G.); (M.E.S.); (I.B.); (S.B.); (M.W.); (C.L.); (L.G.)
| | - Stefania Mariani
- Department of Experimental Medicine, Section of Medical Physiopathology, Food Science and Endocrinology, “Sapienza” University of Rome, 00161 Rome, Italy; (D.M.); (F.C.); (S.C.); (E.G.); (M.E.S.); (I.B.); (S.B.); (M.W.); (C.L.); (L.G.)
- Correspondence: ; Tel.: +39-06499-70721; Fax: +39-06446-1450
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11
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Body Composition as a Modulator of Bone Health Changes in Patients with Inflammatory Bowel Disease. Life (Basel) 2022; 12:life12020272. [PMID: 35207559 PMCID: PMC8875340 DOI: 10.3390/life12020272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/09/2022] [Accepted: 02/10/2022] [Indexed: 12/05/2022] Open
Abstract
Background: Bone impairment of multifactorial etiology is a common feature in inflammatory bowel disease (IBD). Body composition parameters, which might be selectively modified in these patients, are important determinants of bone strength. Our aim was to investigate the relationship between components of body composition and bone parameters in IBD patients. Methods: This is a cross-sectional, retrospective study including 80 IBD patients (43 women, 37 men). Lumbar spine (LS), femoral neck (FN) and whole body DXA scans were performed to analyze regional bone mineral density (BMD), as well as body composition, including appendicular skeletal muscle mass index (ASMI), total and visceral fat mass (VAT). Trabecular bone score (TBS) was assessed using iNsight Software. Results: Twenty (25%) IBD patients had inadequate LS-BMD z scores (<=−2DS). Lean mass (LM) was a significant determinant of LS-BMD, after adjusting for age, gender, BMI and fat mass (p < 0.01), while fat mass% remained associated with FN-BMD (p < 0.01). TBS correlated positively with BMI (r = 0.24, p < 0.05), LS-BMD (r = 0.56, p < 0.001), ASMI (r = 0.34, p < 0.001) and negatively with VAT/total fat% (r = −0.27, p < 0.05). Multivariate analysis showed that ASMI, LS-BMD (positively) and VAT/total fat% (negatively) were independently associated with TBS. Conclusions: In IBD patients, skeletal muscle mass and fat percentage and distribution are important factors associated with bone health.
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12
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Shih CW, Fang WH, Chen WL. Clinical relevance of the relationship between Trabecular Bone Score and metabolic syndrome. J Investig Med 2022; 70:967-971. [PMID: 35017182 DOI: 10.1136/jim-2021-002009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/17/2021] [Indexed: 11/04/2022]
Abstract
The Trabecular Bone Score (TBS) is an indirect measurement of bone quality, and studies have shown that TBS is an independent predictor of fracture risk. This cross-sectional investigation aimed to explore the relationship between metabolic syndrome (MetS) and TBS using data from the 2005-2006 US National Health and Nutrition Examination Survey. The association between individual MetS components and TBS was examined. There was a significant linear decrease in TBS with an increase in the number of MetS components. The β coefficients of TBS among participants with 3 and ≥4 MetS components were -0.015 and -0.041 (p=0.006 and p<0.001, respectively). Among participants with MetS, high systolic blood pressure, abdominal obesity, and high serum levels of triglycerides and glucose were significantly associated with lower TBS in fully adjusted models (p<0.05). Furthermore, there was a significant linear decrease in TBS with an increase in the number of MetS components in both sexes. TBS significantly decreased with an increasing number of MetS components in a US population. The components of MetS, including systolic blood pressure, waist circumference, and serum levels of triglyceride and glucose, exhibited a negative association with TBS.
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Affiliation(s)
- Chi-Wei Shih
- Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Wen-Hui Fang
- Division of Geriatric Medicine, Department of Family Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Wei-Liang Chen
- Division of Geriatric Medicine, Department of Family Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China
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13
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Kim KY, Kim KM. Similarities and differences between bone quality parameters, trabecular bone score and femur geometry. PLoS One 2022; 17:e0260924. [PMID: 35015756 PMCID: PMC8751997 DOI: 10.1371/journal.pone.0260924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 11/22/2021] [Indexed: 11/25/2022] Open
Abstract
Bone quality is a critical factor that, along with bone quantity, determines bone strength. Image-based parameters are used for assessing bone quality non-invasively. The trabecular bone score (TBS) is used to assess quality of trabecular bone and femur geometry for cortical bone. Little is known about the associations between these two bone quality parameters and whether they show differences in the relationships with age and body mass index (BMI). We investigated the associations between the trabecular bone score (TBS) and femur cortical geometry. Areal bone mineral density (BMD) was assessed using dual energy X-ray absorptiometry (DXA) and the TBS was assessed using iNsight software and, femur geometry using APEX (Hologic). A total of 452 men and 517 women aged 50 years and older with no medical history of a condition affecting bone metabolism were included. Z-scores for TBS and cortical thickness were calculated using the age-specific mean and SD for each parameter. A ‘discrepancy group’ was defined as patients whose absolute Z-score difference between TBS and cortical thickness was > 1 point. TBS and cortical thickness correlated negatively with age both in men and women, but the associations were stronger in women. Regarding the associations with BMI, TBS provided significant negative correlation with BMI in the range of BMI > 25 kg/m2. By contrast, cortical thickness correlated positively with BMI for all BMI ranges. These bone quality-related parameters, TBS and cortical thickness, significantly correlated, but discordance between these two parameters was observed in about one-third of the men and women (32.7% and 33.4%, respectively). Conclusively, image-based bone quality parameters for trabecular and cortical bone exhibit both similarities and differences in terms of their associations with age and BMI. These different profiles in TBS and FN cortical thickness might results in different risk profiles for the vertebral fractures or hip fractures in a certain percentage of people.
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Affiliation(s)
- Kyong Young Kim
- Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Changwon, South Korea
| | - Kyoung Min Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital and Seoul National University College of Medicine, Seongnam, South Korea
- Division of Endocrinology, Department of Internal Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Republic of Korea
- * E-mail:
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14
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Rinonapoli G, Pace V, Ruggiero C, Ceccarini P, Bisaccia M, Meccariello L, Caraffa A. Obesity and Bone: A Complex Relationship. Int J Mol Sci 2021; 22:ijms222413662. [PMID: 34948466 PMCID: PMC8706946 DOI: 10.3390/ijms222413662] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/13/2021] [Accepted: 12/13/2021] [Indexed: 12/29/2022] Open
Abstract
There is a large literature on the relationship between obesity and bone. What we can conclude from this review is that the increase in body weight causes an increase in BMD, both for a mechanical effect and for the greater amount of estrogens present in the adipose tissue. Nevertheless, despite an apparent strengthening of the bone witnessed by the increased BMD, the risk of fracture is higher. The greater risk of fracture in the obese subject is due to various factors, which are carefully analyzed by the Authors. These factors can be divided into metabolic factors and increased risk of falls. Fractures have an atypical distribution in the obese, with a lower incidence of typical osteoporotic fractures, such as those of hip, spine and wrist, and an increase in fractures of the ankle, upper leg, and humerus. In children, the distribution is different, but it is not the same in obese and normal-weight children. Specifically, the fractures of the lower limb are much more frequent in obese children. Sarcopenic obesity plays an important role. The authors also review the available literature regarding the effects of high-fat diet, weight loss and bariatric surgery.
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Affiliation(s)
- Giuseppe Rinonapoli
- Orthopaedic and Traumatology Unit, Department of Medicine, University of Perugia, 06156 Perugia, Italy; (V.P.); (P.C.); (A.C.)
- Correspondence:
| | - Valerio Pace
- Orthopaedic and Traumatology Unit, Department of Medicine, University of Perugia, 06156 Perugia, Italy; (V.P.); (P.C.); (A.C.)
| | - Carmelinda Ruggiero
- Orthogeriatric Service, Geriatric Unit, Institute of Gerontology and Geriatrics, Department of Medicine, University of Perugia, 06156 Perugia, Italy;
| | - Paolo Ceccarini
- Orthopaedic and Traumatology Unit, Department of Medicine, University of Perugia, 06156 Perugia, Italy; (V.P.); (P.C.); (A.C.)
| | - Michele Bisaccia
- Department of Orthopaedics and Traumatology, AORN San Pio “Gaetano Rummo Hospital”, Via R.Delcogliano, 82100 Benevento, Italy; (M.B.); (L.M.)
| | - Luigi Meccariello
- Department of Orthopaedics and Traumatology, AORN San Pio “Gaetano Rummo Hospital”, Via R.Delcogliano, 82100 Benevento, Italy; (M.B.); (L.M.)
| | - Auro Caraffa
- Orthopaedic and Traumatology Unit, Department of Medicine, University of Perugia, 06156 Perugia, Italy; (V.P.); (P.C.); (A.C.)
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15
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Abstract
INTRODUCTION The prevalence of metabolic syndrome has been reported to extremely vary depending on the gender, age, and ethnicity studied. Approximately, 25% of the worldwide adult population is affected by metabolic syndrome, indicating it as a significantly important public health challenge. Likewise, fragility fracture represents an important public health issue too, and the lifetime residual risk of its occurrence has been established in 50% in women and 30% in men over 50 years of age, respectively. Dysmobility syndrome summarizes a cluster of co-existing conditions such as osteoporosis, sarcopenia, obesity. Currently, clinical research focuses essentially on the cardiovascular risks associated with metabolic syndrome. Today, it is conceivable to incorporate all these conditions under a generic "disorder of energy metabolism." EVIDENCE ACQUISITION Animal and human studies suggest metabolic and dysmobility syndromes negatively impact on the risk for fragility fracture, contributing to increase the associated mortality rate. EVIDENCE SYNTHESIS In recent years, strong correlation between type 2 diabetes, a frequent constitutive part of metabolic syndrome and fragility fracture risk has been reported, but the possible molecular mechanisms by which it can occur are still to be defined. CONCLUSIONS Only very few human clinical studies faced these aspects, but they lack adequate endpoints for a good clinical practice in these subjects. Much more still needs to be done before appropriate therapeutic diagnostic pathways will be available for these patients at risk of bone and even generalized fragility. Suggestions for a future overall approach by generating global risk score for these conditions are given.
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Affiliation(s)
- Roberta Cosso
- Section of Bone and Mineral Diseases, San Giuseppe Hospital, Piancavallo, Verbania, Italy
| | - Alberto Falchetti
- Section of Bone and Mineral Diseases, San Giuseppe Hospital, Piancavallo, Verbania, Italy - .,Unit for Bone Metabolism Diseases and Diabetes, Laboratory of Endocrine and Metabolic Research, Istituto Auxologico Italiano IRCCS, Milan, Italy
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16
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Sousa BÉCA, Silva BC, de Oliveira Guidotti T, Pires MC, Soares MMS, Kakehasi AM. Trabecular bone score in women with differentiated thyroid cancer on long-term TSH-suppressive therapy. J Endocrinol Invest 2021; 44:2295-2305. [PMID: 33730348 DOI: 10.1007/s40618-021-01537-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 02/15/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Thyrotropin stimulating hormone (TSH) suppression in patients with differentiated thyroid cancer (DTC) aims to decrease the growth and proliferation of thyroid cancer cells. However, the effect of TSH-suppressive therapy on bone microarchitecture remains undefined. METHODS Cross-sectional study including 43 women with DTC undergoing TSH-suppressive therapy (sTSH) compared to 20 women also on levothyroxine (LT4) therapy but with TSH in the low-normal range (nTSH) since the thyroid surgery. Bone mineral density (BMD) was measured by dual-energy X-ray absorptiometry (DXA), and trabecular bone score (TBS) was evaluated using the TBS iNsigth software. Fracture risk assessed by FRAX, with and without TBS, was calculated. The relationship between suppressive therapy-related parameters and bone parameters was investigated. RESULTS The TBS mean values were not significantly different in the sTSH and nTSH groups (1.273 ± 0.12 vs 1.307 ± 0.14, p = 0.7197). In both groups, postmenopausal women had degraded microarchitecture (TBS 1.216 ± 0.11 vs 1.213 ± 0.09, p = 0.9333), while premenopausal women had normal microarchitecture (1.328 ± 0.11 vs 1.401 ± 0.12, p = 0.195). The percentage of all postmenopausal women with degraded TBS was 54.7%, while the percentage of osteoporosis diagnoses was 16.1%. The TBS-adjusted FRAX-probability of fracture was similar in sTSH and nTSH groups. Body mass index (BMI) and menopausal status were the only variables associated with TBS and BMD. CONCLUSION Trabecular microarchitecture assessed by TBS was similar between women on long-term suppressive therapy in DTC and those on LT4 replacement therapy aiming at a TSH level within the low-normal reference range. Low TBS values were observed in postmenopausal women of both groups, suggesting that not only suppressed TSH levels but also a low-normal TSH is associated with deteriorated bone microarchitecture in postmenopausal women following total thyroidectomy.
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Affiliation(s)
- B É C A Sousa
- Graduate Program in Sciences Applied To Adult Health Care, Federal University of Minas Gerais - UFMG, Belo Horizonte, Minas Gerais State, Brazil.
| | - B C Silva
- School of Medicine, University Center of Belo Horizonte - UNI-BH, Belo Horizonte, Brazil
- Division of Endocrinology, Felício Rocho Hospital, Belo Horizonte, Brazil
- Division of Endocrinology, Santa Casa de Belo Horizonte, Belo Horizonte, Brazil
| | - T de Oliveira Guidotti
- Physiotherapy Academic, Federal University of Minas Gerais - UFMG, Belo Horizonte, Brazil
| | - M C Pires
- Statistics Department, Federal University of Minas Gerais - UFMG, Belo Horizonte, Brazil
| | - M M S Soares
- Graduate Program in Sciences Applied To Adult Health Care, Federal University of Minas Gerais - UFMG, Belo Horizonte, Minas Gerais State, Brazil
- Division of Endocrinology, Felício Rocho Hospital, Belo Horizonte, Brazil
- Department of Internal Medicine and Endocrinology, Federal University of Minas Gerais - UFMG, Belo Horizonte, Brazil
| | - A M Kakehasi
- Graduate Program in Sciences Applied To Adult Health Care, Federal University of Minas Gerais - UFMG, Belo Horizonte, Minas Gerais State, Brazil
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17
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Costa R, de Asúa DR, Gullón A, De Miguel R, Bautista A, García C, Roy E, García-Vadillo JA, Suárez C, Moldenhauer F, Castañeda S. Volumetric BMD by 3D-DXA and Trabecular Bone Score in Adults With Down Syndrome. J Clin Densitom 2021; 24:630-637. [PMID: 33618949 DOI: 10.1016/j.jocd.2021.01.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 01/22/2021] [Accepted: 01/26/2021] [Indexed: 01/24/2023]
Abstract
Adults with Down syndrome (DS) have lower bone mineral density (BMD) than the general population. The objective of our study was to describe bone mineral status in DS population through volumetric BMD (vBMD) and trabecular bone score (TBS). Retrospective study of 297 subjects recruited from the Adult DS Outpatient Clinic of a tertiary care hospital in Spain, who underwent a bone densitometry for clinical purposes between January 2010 and June 2015. vBMD determination and TBS analysis on conventional DXA (Hologic QDR 4500) densitometer were performed in this cohort. The mean (±SD) age of our population was 34.3 (±10.9) years; 51% were women. Trabecular vBMD at total hip and femoral neck was lower in males than in females (191.7 ± 48.4 mg/cm3 vs 206.9 ± 46.7 mg/cm3, p = 0.007, and 250.5 ± 70.1 mg/cm3 vs 275.7 ± 66.2 mg/cm3, p = 0.002, respectively). Trabecular and cortical vBMD decreased with age, but age decline in trabecular vBMD was more pronounced in males. Likewise, lumbar TBS declined with age being normal in 63%, low in 29% and very low in 8% of subjects with DS, without differences between sexes. TBS showed a positive correlation (r = 0.37; p < 0.001, Kappa index= 0.275) with conventional DXA lumbar Z-score. vBMD at the hip showed lower values in DS subjects than in the general population, especially in males. Moreover, TBS was also lower at lumbar spine. Therefore, both assessments could be used as complementary tools to areal BMD (Z-score) to assess bone status in DS subjects.
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Affiliation(s)
- Ramón Costa
- Adult Down Syndrome Outpatient Clinic, Department of Internal Medicine, Instituto de Investigación Sanitaria-Princesa (IIS-IP), Hospital Universitario de La Princesa, Madrid, Spain.
| | - Diego Real de Asúa
- Adult Down Syndrome Outpatient Clinic, Department of Internal Medicine, Instituto de Investigación Sanitaria-Princesa (IIS-IP), Hospital Universitario de La Princesa, Madrid, Spain
| | - Alejandra Gullón
- Adult Down Syndrome Outpatient Clinic, Department of Internal Medicine, Instituto de Investigación Sanitaria-Princesa (IIS-IP), Hospital Universitario de La Princesa, Madrid, Spain
| | - Rosa De Miguel
- Adult Down Syndrome Outpatient Clinic, Department of Internal Medicine, Instituto de Investigación Sanitaria-Princesa (IIS-IP), Hospital Universitario de La Princesa, Madrid, Spain
| | - Azucena Bautista
- Adult Down Syndrome Outpatient Clinic, Department of Internal Medicine, Instituto de Investigación Sanitaria-Princesa (IIS-IP), Hospital Universitario de La Princesa, Madrid, Spain
| | - Clara García
- Adult Down Syndrome Outpatient Clinic, Department of Internal Medicine, Instituto de Investigación Sanitaria-Princesa (IIS-IP), Hospital Universitario de La Princesa, Madrid, Spain
| | - Emilia Roy
- Adult Down Syndrome Outpatient Clinic, Department of Internal Medicine, Instituto de Investigación Sanitaria-Princesa (IIS-IP), Hospital Universitario de La Princesa, Madrid, Spain
| | - Jesús A García-Vadillo
- Department of Rheumatology, Instituto de Investigación Sanitaria-Princesa (IIS-IP), Hospital Universitario de La Princesa, Madrid, Spain
| | - Carmen Suárez
- Adult Down Syndrome Outpatient Clinic, Department of Internal Medicine, Instituto de Investigación Sanitaria-Princesa (IIS-IP), Hospital Universitario de La Princesa, Madrid, Spain
| | - Fernando Moldenhauer
- Adult Down Syndrome Outpatient Clinic, Department of Internal Medicine, Instituto de Investigación Sanitaria-Princesa (IIS-IP), Hospital Universitario de La Princesa, Madrid, Spain
| | - Santos Castañeda
- Department of Rheumatology, Instituto de Investigación Sanitaria-Princesa (IIS-IP), Hospital Universitario de La Princesa, Madrid, Spain; Cátedra UAM-Roche, EPID-Future, Universidad Autónoma de Madrid (UAM), Spain
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18
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Panahi N, Ostovar A, Fahimfar N, Aghaei Meybodi HR, Gharibzadeh S, Arjmand B, Sanjari M, Khalagi K, Heshmat R, Nabipour I, Soltani A, Larijani B. Factors associated with TBS worse than BMD in non-osteoporotic elderly population: Bushehr elderly health program. BMC Geriatr 2021; 21:444. [PMID: 34315430 PMCID: PMC8314528 DOI: 10.1186/s12877-021-02375-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 07/02/2021] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Bone mineral density (BMD) and trabecular bone score (TBS) are moderately correlated. TBS is sometimes used as an adjuvant to BMD in the fracture risk assessment. Some individuals with normal BMD or osteopenia, have more degraded TBS. We aimed to identify factors associated with TBS worse than BMD in the non-osteoporotic elderly population. METHODS The study subjects were selected from 2384 women and men aged ≥60 years participating in the second stage of the Bushehr Elderly Health program, a population-based prospective cohort study in Iran. The BMDs of different sites and the lumbar spine texture were measured using dual-energy X-ray absorptiometry and the TBS algorithm, respectively. Subjects were categorized based on their BMD and TBS status. Logistic regression was performed to identify the factors associated with "TBS worse than BMD" in non-osteoporotic individuals. RESULTS Of 1335 participants included in the study, 112 of 457 women, and 54 of 878 men had worse TBS than BMD. In multivariable analysis, TBS worse than BMD in women was statistically significantly associated with years since menopause (OR: 1.04 (1.00-1.07)) and waist circumference (OR: 1.09 (1.05-1.14)). However, in men, the condition was statistically significantly associated with waist circumference (OR: 1.10 (1.03-1.17)), current smoking (OR: 2.54 (1.10-5.84)), and HDL-C (OR: 1.03 (1.00-1.06)). CONCLUSION The results of the study show that higher waist circumference is associated with more degraded TBS than BMD in both men and women. Years passed since menopause and current smoking, respectively in women and men, were associated with more degraded TBS. Considering TBS values in older individuals with higher waist circumference, or a history of smoking despite normal BMDs might help more accurate assessment of bone health. However, further studies are required to confirm the benefit.
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Affiliation(s)
- Nekoo Panahi
- Osteoporosis Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Evidence Based Medicine Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Afshin Ostovar
- Osteoporosis Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Noushin Fahimfar
- Osteoporosis Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid Reza Aghaei Meybodi
- Osteoporosis Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Safoora Gharibzadeh
- Department of Epidemiology and Biostatistics, Pasteur Institute of Iran, Tehran, Iran
| | - Babak Arjmand
- Metabolomics and Genomics Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahnaz Sanjari
- Osteoporosis Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Kazem Khalagi
- Osteoporosis Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Ramin Heshmat
- Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Iraj Nabipour
- The Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Akbar Soltani
- Evidence Based Medicine Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
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Chiodini I, Gaudio A, Palermo A, Napoli N, Vescini F, Falchetti A, Merlotti D, Eller-Vainicher C, Carnevale V, Scillitani A, Pugliese G, Rendina D, Salcuni A, Bertoldo F, Gonnelli S, Nuti R, Toscano V, Triggiani V, Cenci S, Gennari L. Management of bone fragility in type 2 diabetes: Perspective from an interdisciplinary expert panel. Nutr Metab Cardiovasc Dis 2021; 31:2210-2233. [PMID: 34059385 DOI: 10.1016/j.numecd.2021.04.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 04/11/2021] [Accepted: 04/15/2021] [Indexed: 12/22/2022]
Abstract
AIM Bone fragility is increasingly recognized as a relevant complication of type 2 diabetes (T2D) and diabetic patients with fragility fractures have higher mortality rates than non diabetic individuals or diabetic patients without fractures. However, current diagnostic approaches for fracture risk stratification, such as bone mineral density measurement or the use of risk assessment algorithms, largely underestimate fracture risk in T2D patients. A multidisciplinary expert panel was established in order to in order to formulate clinical consensus recommendations on bone health assessment and management of fracture risk in patients with T2D. DATA SYNTHESIS The following key questions were addressed: a) which are the risk factors for bone fragility in T2D?, b) which diagnostic procedures can be currently used to stratify fracture risk in T2D patients?, c) which are the effects of antidiabetic treatments on bone?, and d) how to prevent and treat bone fragility in T2D patients? Based on the available data members of this panel suggest that the stratification of fracture risk in patients with diabetes should firstly rely on the presence of a previous fragility fracture and on the individual risk profile, with the inclusion of T2D-specific risk factors (namely T2D duration above 10 yrs, presence of chronic T2D complications, use of insulin or thiazolidinediones and persistent HbA1c levels above 8% for at least 1 year). Two independent diagnostic approaches were then suggested in the presence or the absence of a prevalent fragility fracture, respectively. CONCLUSIONS Clinical trials in T2D patients at risk for fragility fractures are needed to determine the efficacy and safety of available antiresorptive and anabolic agents in this specific setting.
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Affiliation(s)
- Iacopo Chiodini
- Unit for Bone Metabolism Diseases and Diabetes and Lab of Endocrine and Metabolic Research, IRCCS Istituto Auxologico Italiano, Milan, Italy; Department of Medical Science and Community Health, University of Milan, Milan, Italy
| | - Agostino Gaudio
- Department of Clinical and Experimental Medicine, University of Catania, University Hospital "G. Rodolico" Catania, Italy
| | - Andrea Palermo
- Department of Endocrinology and Diabetes, University Campus Bio-Medico, Rome, Italy
| | - Nicola Napoli
- Department of Endocrinology and Diabetes, University Campus Bio-Medico, Rome, Italy
| | - Fabio Vescini
- Endocrinology and Metabolism Unit, University-Hospital S. M. Misericordia of Udine, Italy
| | - Alberto Falchetti
- Unit for Bone Metabolism Diseases and Diabetes and Lab of Endocrine and Metabolic Research, IRCCS Istituto Auxologico Italiano, Milan, Italy; EndOsMet, Villa Donatello Private Hospital, Florence, Italy
| | - Daniela Merlotti
- Department of Medicine, Surgery and Neurosciences, University of Siena, Policlinico Le Scotte, Siena, Italy; Division of Genetics and Cell Biology, San Raffaele Scientific Institute, Milan, Italy
| | | | - Vincenzo Carnevale
- Unit of Internal Medicine, "Casa Sollievo della Sofferenza" Hospital, IRCCS, San Giovanni Rotondo, (FG), Italy
| | - Alfredo Scillitani
- Unit of Endocrinology, "Casa Sollievo della Sofferenza" Hospital, IRCCS, San Giovanni Rotondo, (FG), Italy
| | - Giuseppe Pugliese
- Department of Clinical and Molecular Medicine, "La Sapienza" University, and Diabetes Unit, Sant'Andrea University Hospital, Rome, Italy
| | - Domenico Rendina
- Department of Clinical Medicine and Surgery, "Federico II" University of Naples, Naples, Italy
| | - Antonio Salcuni
- Endocrinology Unit, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Francesco Bertoldo
- Department of Medicine, University of Verona, Policlinico GB Rossi, Verona, Italy
| | - Stefano Gonnelli
- Department of Medicine, Surgery and Neurosciences, University of Siena, Policlinico Le Scotte, Siena, Italy
| | - Ranuccio Nuti
- Department of Medicine, Surgery and Neurosciences, University of Siena, Policlinico Le Scotte, Siena, Italy
| | - Vincenzo Toscano
- Department of Clinical and Molecular Medicine, "La Sapienza" University, Rome, Italy
| | - Vincenzo Triggiani
- Interdisciplinary Department of Medicine, Section of Internal Medicine, Geriatrics, Endocrinology and Rare Diseases. University of Bari "Aldo Moro", Bari, Italy
| | - Simone Cenci
- Division of Genetics and Cell Biology, San Raffaele Scientific Institute, Milan, Italy
| | - Luigi Gennari
- Department of Medicine, Surgery and Neurosciences, University of Siena, Policlinico Le Scotte, Siena, Italy.
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Bone characteristics and metabolic phenotypes of obesity in an Iranian Elderly population: Bushehr Elderly Health Program (BEHP). Arch Osteoporos 2021; 16:92. [PMID: 34101034 DOI: 10.1007/s11657-021-00953-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 04/19/2021] [Indexed: 02/03/2023]
Abstract
INTRODUCTION Obesity and osteoporosis are health problems with high impact on the morbidity and mortality rate. While the association between BMI and bone density is known, the combined effects of obesity and metabolic components on bone health have not yet been revealed. The objectives of this study were to determine the association between bone health and different phenotypes of obesity in an elderly population. METHODS This cross-sectional study was conducted on the data collected in the Bushehr Elderly Health Program (BEHP). The participants were classified in four groups based on the metabolic phenotypes of obesity (metabolic healthy obese (MHO), metabolic non-healthy non-obese (MNHNO), metabolic non-healthy obese (MNHO), and metabolic healthy non-obese (MHNO)). The association between osteoporosis and TBS and the metabolic phenotypes of obesity were assessed using multiple variable logistic regression models. RESULTS Totally, 2378 people (1227 women) were considered for analyses. The prevalence of MHNO, MHO, MNHNO, and MNHO were 902 (39.9%), 138 (6.1%), 758 (33.5%), and 464 (20.5%), respectively. In the multivariate logistic regression models, those with MHO (OR 0.22; 95% CI 0.12-0.36), MNHNO (OR 0.52; 95% CI 0.4-0.66), and MNHO phenotypes (OR 0.22; 95% CI 0.16-0.3) had a significantly lower risk of osteoporosis. Likewise, those having MHO (OR 2.38; 95% CI 1.51-3.76), MNHNO (OR 1.49; 95% CI 1.11-2), and MNHO (OR 2.50; 95% CI 1.82-3.42) phenotypes were found to had higher risk of low bone quality as confirmed by TBS. CONCLUSIONS The obese subjects have lower bone quality, regardless of their obesity phenotype.
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21
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Rakusa M, Poglajen G, Vrtovec B, Goricar K, Janez A, Jensterle M. Factors associated with degraded trabecular bone score in heart transplant recipients. Clin Transplant 2021; 35:e14274. [PMID: 33675551 DOI: 10.1111/ctr.14274] [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: 10/24/2020] [Revised: 02/07/2021] [Accepted: 03/01/2021] [Indexed: 11/28/2022]
Abstract
Trabecular bone score (TBS) is a textural index that provides indirect evaluation of trabecular microarchitecture. It improves fracture risk assessment in several high-risk populations. We aimed to evaluate the role of TBS assessment in heart transplant recipients (HTR). In a cross-sectional study with 87 HTR (69 males and 18 females), we assessed TBS and evaluated potential associations between TBS and factors related to increased fracture risk. We also evaluated the correlations between the presence of vertebral fractures (VF) and degraded TBS. We confirmed degraded TBS in the majority of HTR. 27.6% of HTR had partially degraded, 27.6% had degraded TBS. HTR with degraded TBS were older, had higher body mass index, lower bone mineral density (BMD), and T-score. As opposed to stable BMD over different time points, TBS significantly differed among different post-transplant time periods. TBS did not correlate with current methylprednisolone or past zoledronic acid treatment, presence of hypogonadism or diabetes. TBS did not have additional value over BMD in predicting the presence of VF. Most fractures occurred in patients with osteopenia and in patients with partly degraded TBS. Studies with longitudinal designs and larger sample sizes are warranted to further assess the potential role of TBS in HRT.
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Affiliation(s)
- Matej Rakusa
- Department of Endocrinology, Diabetes and Metabolic Disease, University Medical Centre Ljubljana, Ljubljana, Slovenia.,Department of Internal Medicine, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Gregor Poglajen
- Department of Internal Medicine, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia.,Advanced Heart Failure and Transplantation Programme, Department of Cardiology, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Bojan Vrtovec
- Department of Internal Medicine, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia.,Advanced Heart Failure and Transplantation Programme, Department of Cardiology, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Katja Goricar
- Pharmacogenetics Laboratory, Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Andrej Janez
- Department of Endocrinology, Diabetes and Metabolic Disease, University Medical Centre Ljubljana, Ljubljana, Slovenia.,Department of Internal Medicine, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Mojca Jensterle
- Department of Endocrinology, Diabetes and Metabolic Disease, University Medical Centre Ljubljana, Ljubljana, Slovenia.,Department of Internal Medicine, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
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Guagnelli MÁ, Winzenrieth R, Deleze M, Cons-Molina F, Clark P. Description of Normative Spine TBS Data for Men and Women in Mexican Population. J Clin Densitom 2021; 24:129-134. [PMID: 32741651 DOI: 10.1016/j.jocd.2020.06.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 06/17/2020] [Accepted: 06/18/2020] [Indexed: 11/16/2022]
Abstract
Trabecular Bone Score (TBS) has proven its usefulness to improve areal Bone Mineral Density in diagnosing fracture risk and bone status evaluation. For it to be better interpreted, local reference values are recommended to account for population differences and, if possible, both in women and men, the former being scarcer. Using TBS, we reanalyzed data obtained from the Mexican population included in the Latin American Vertebral Osteoporosis Study and the Mexican Vertebral Study in men that included a random probability sample of 408 women and 414 men aged 50 and older without fractures. Data was used to obtain reference curves in such a population. Mean TBS in women ranged from an average of 1.359 ± 0.118 standard deviation (SD) 50 to 59 and decreased down to 1.211 ± 0.128 SD in women 80 and above. In men ranged from 1.382 ± 0.116 SD in the first group down to 1.315 ± 0.118 SD in the latter with little differences in age groups. Mean values in women are lower than previously suggested cutoff points to establish microarchitecture status using TBS: 1.350 and above normal, 1.200 to 1.349 partially degraded and 1.199 and below, degraded. Our TBS data have the strength of being a random sample drawn from the population, although limited in its extent to one city in Mexico. The means and curves may be used to diagnose bone status with better sensibility and specificity, although these values are yet to be evaluated.
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Affiliation(s)
- Miguel Ángel Guagnelli
- Clinical Epidemiology Unit, Hospital Infantil de México Federico Gómez-Facultad de Medicina UNAM, Mexico City, Mexico
| | | | | | | | - Patricia Clark
- Clinical Epidemiology Unit, Hospital Infantil de México Federico Gómez-Facultad de Medicina UNAM, Mexico City, Mexico; Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico.
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Nickel Sensitivity Is Associated with GH-IGF1 Axis Impairment and Pituitary Abnormalities on MRI in Overweight and Obese Subjects. Int J Mol Sci 2020; 21:ijms21249733. [PMID: 33419306 PMCID: PMC7766406 DOI: 10.3390/ijms21249733] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 12/10/2020] [Accepted: 12/18/2020] [Indexed: 12/27/2022] Open
Abstract
Nickel (Ni) is a ubiquitous metal, the exposure of which is implied in the development of contact dermatitis (nickel allergic contact dermatitis (Ni-ACD)) and Systemic Ni Allergy Syndrome (SNAS), very common among overweight/obese patients. Preclinical studies have linked Ni exposure to abnormal production/release of Growth Hormone (GH), and we previously found an association between Ni-ACD/SNAS and GH-Insulin-like growth factor 1 (IGF1) axis dysregulation in obese individuals, altogether suggesting a role for this metal as a pituitary disruptor. We herein aimed to directly evaluate the pituitary gland in overweight/obese patients with signs/symptoms suggestive of Ni allergy, exploring the link with GH secretion; 859 subjects with overweight/obesity and suspected of Ni allergy underwent Ni patch tests. Among these, 106 were also suspected of GH deficiency (GHD) and underwent dynamic testing as well as magnetic resonance imaging for routine follow up of benign diseases or following GHD diagnosis. We report that subjects with Ni allergies show a greater GH-IGF1 axis impairment, a higher prevalence of Empty Sella (ES), a reduced pituitary volume and a higher normalized T2 pituitary intensity compared to nonallergic ones. We hypothesize that Ni may be detrimental to the pituitary gland, through increased inflammation, thus contributing to GH-IGF1 axis dysregulation.
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Shayganfar A, Farrokhi M, Shayganfar S, Ebrahimian S. Associations between bone mineral density, trabecular bone score, and body mass index in postmenopausal females. Osteoporos Sarcopenia 2020; 6:111-114. [PMID: 33102803 PMCID: PMC7573495 DOI: 10.1016/j.afos.2020.08.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 08/05/2020] [Accepted: 08/17/2020] [Indexed: 02/06/2023] Open
Abstract
Objectives Bone mineral density (BMD), as a gold standard determinant of osteoporosis, assesses only one of many characteristics contributing to the bone. Trabecular bone score (TBS) is applied to evaluate the microarchitecture of trabecular bone. A high body mass index (BMI) has been reported to have a positive correlation with BMD. However, the relation between BMI and TBS has remained unclear. Therefore, the aim of this study is to shed light on the associations between BMI, T-score, and TBS in postmenopausal women without a diagnosed underlying disease. Methods In this cross-sectional study, 1054 postmenopausal women were randomly recruited from the Department of Radiology, Isfahan University of Medical Sciences. Demographic characteristics and medical history of all subjects were collected from documents. TBS measurements for L1-L4 vertebrae were retrospectively performed by the TBS iNsight software using the dual X-ray absorptiometry (DXA) from the same region of spine of the subjects. The analysis was done to detect the correlation between TBS and BMI. Results A statistically significant negative correlation was found between TBS and BMI in patients with osteoporosis and low bone mass. In patients with normal T-scores, BMI was not significantly correlated to TBS (P > 0.05). Furthermore, there was a significant positive association between T-score and BMI. Conclusions Although a higher BMI had a protective effect against osteoporosis, higher BMI was associated with a lower TBS in patients with an abnormal T-score. However, BMI did not have a significant effect on TBS in patients with normal T-scores.
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Affiliation(s)
- Azin Shayganfar
- Department of Radiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehrdad Farrokhi
- School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sanaz Shayganfar
- Department of Radiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Shadi Ebrahimian
- Department of Radiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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Trabecular bone score of postmenopausal women is positively correlated with bone mineral density and negatively correlated with age and body mass index. ACTA ACUST UNITED AC 2020; 26:1166-1170. [PMID: 31188287 DOI: 10.1097/gme.0000000000001375] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
OBJECTIVE Trabecular bone score (TBS), an indirect evaluation of skeletal microarchitecture, is calculated from dual-energy X-ray absorptiometry (DXA). This study aimed to determine the mean TBS values in healthy postmenopausal women and overall association between TBS and demographic features, bone mineral density (BMD) of the lumbar spine and femoral neck, and BMD to body mass index (BMI) ratio of the lumbar spine. METHODS Fifty-three postmenopausal healthy women were enrolled. The BMD of the lumbar spine and femoral neck was measured by DXA. Anteroposterior lumbar spine acquisitions were used to calculate the TBS for L1 to L4. RESULTS The mean BMD of the lumbar spine and femoral neck was 0.945 ± 0.133 and 0.785 ± 0.112 g/cm, respectively. The mean TBS was 1.354 ± 0.107. There was a significant positive moderate correlation between TBS and total lumbar BMD to BMI ratio (r = 0.595, P < 0.001), and significant positive weak correlations between TBS and BMD of the lumbar spine (r = 0.347, P = 0.011) as well as between TBS and femoral neck (r = 0.305, P = 0.026), whereas significant negative moderate correlations were observed between TBS and age (r = -0.393, P = 0.004) as well as between TBS and BMI (r = -0.333, P = 0.015). CONCLUSIONS TBS values of postmenopausal women were negatively correlated with age and BMI, and positively with BMD and BMD to BMI ratio.
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Pini SF, Sgaramella GA, Pariente-Rodrigo E, Ramos-Barrón MC, Olmos-Martínez JM, Hernández-Hernández JL. Trabecular bone score and bone turnover markers in men with DISH: Data from the Camargo Cohort study. Semin Arthritis Rheum 2020; 50:1521-1524. [PMID: 32093967 DOI: 10.1016/j.semarthrit.2020.01.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 12/10/2019] [Accepted: 01/27/2020] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Diffuse idiopathic skeletal hyperostosis (DISH) has been associated with an increased risk of vertebral fracture. To date, no studies have investigated the relationship between DISH and bone microstructure assessed by the trabecular bone score (TBS). METHODS Cross-sectional study, nested in a prospective population-based cohort. All men (968) aged≥50 years were included. Clinical covariates, DISH, TBS, serum bone turnover markers and bone mineral density (BMD) were analyzed. RESULTS Mean age of participants was 65 ± 9 years. 207 (21.6%) had DISH. DISH subjects were older, had higher body mass index (BMI) and abdominal perimeter, lower glomerular filtration rate (GFR), and higher prevalence of metabolic syndrome (MetS) than non-DISH (NDISH) subjects. Bone mineral density at the lumbar spine (LS-BMD) was significantly higher in the DISH group. TBS values were 1.317 [1.303-1.331] for DISH and 1.334 [1.327-1.341] for NDISH subjects, after adjusting by age, BMI, abdominal perimeter, arterial hypertension, diabetes mellitus, MetS, GFR, serum alkaline phosphatase (ALP), LS and femoral neck BMD (p = 0.03). Serum ALP levels were higher in DISH subjects, showing an inverse correlation with TBS that remained significant after adjusting by age and BMI. CONCLUSIONS TBS values were significantly lower in men with DISH irrespective of age, BMI and BMD, suggesting that the presence of DISH might be related to a worse trabecular microstructure.
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Affiliation(s)
- Stefanie F Pini
- Home Hospitalization Service, Hospital Marqués de Valdecilla, Cantabria, Spain
| | - Giusi A Sgaramella
- Home Hospitalization Service, Hospital Marqués de Valdecilla, Cantabria, Spain
| | | | | | - José M Olmos-Martínez
- Bone Metabolism Unit, Department of Internal Medicine, Hospital Marqués de Valdecilla, Cantabria, Spain; University of Cantabria, Cantabria, Spain
| | - José L Hernández-Hernández
- Bone Metabolism Unit, Department of Internal Medicine, Hospital Marqués de Valdecilla, Cantabria, Spain; University of Cantabria, Cantabria, Spain.
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Stachowska B, Halupczok-Żyła J, Kuliczkowska-Płaksej J, Syrycka J, Bolanowski M. Decreased Trabecular Bone Score in Patients With Active Endogenous Cushing's Syndrome. Front Endocrinol (Lausanne) 2020; 11:593173. [PMID: 33584537 PMCID: PMC7874075 DOI: 10.3389/fendo.2020.593173] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 12/03/2020] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION The impairment in bone microarchitecture and reduced bone quality are relevant mechanisms underlying the increased fracture risk in Cushing's syndrome (CS). The trabecular bone score (TBS) is a relatively novel textural index of bone microarchitecture. PURPOSE The objective of the study was to compare TBS, bone mineral density (BMD), and fracture risk in patients with endogenous CS to controls. We have investigated the association of TBS with anthropometric parameters and 25(OH) vitamin D concentrations. MATERIALS AND METHODS The study group comprised 19 consecutive patients with CS (14 women and 5 men; mean age 45.84 ± 13.15 years) and sex-, age-matched 36 controls (25 women and men; mean age 52.47 ± 8.98 years). Anthropometric parameters, biochemical and hormonal data were compared between groups. Lumbar spine (L1-L4) and femoral neck BMD (LS BMD, FN BMD) measurements were performed. TBS values were obtained from lumbar spine DXA images. RESULTS TBS was significantly lower in patients with CS compared to controls (p = 0.0002). The 10-year probability of hip fracture and the 10-year probability of a major osteoporotic fracture were significantly higher in the CS group than in controls (p = 0.03, p < 0.0001, respectively). All subjects from the CS group with fractures had low TBS value (degraded microarchitecture). TBS correlated negatively with the duration of disease in patients with CS (r = -0.590 p = 0.008). CONCLUSIONS The patients with active CS have altered bone microstructure as indicated by the decreased TBS and are at higher risk of hip and a major osteoporotic fractures. TBS seems to be a very important analytical tool facilitating fracture risk assessment in endogenous hypercortisolism.
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Batista SL, de Araújo IM, Carvalho AL, Alencar MAVSD, Nahas AK, Elias J, Nogueira-Barbosa MH, Salmon CEG, Elias PCL, Moreira AC, Castro M, de Paula FJA. Beyond the metabolic syndrome: Visceral and marrow adipose tissues impair bone quantity and quality in Cushing's disease. PLoS One 2019; 14:e0223432. [PMID: 31613908 PMCID: PMC6793883 DOI: 10.1371/journal.pone.0223432] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 09/20/2019] [Indexed: 12/17/2022] Open
Abstract
The present study was designed to evaluate the relationship between bone traits [bone mineral density (BMD) and trabecular bone score (TBS)] and the accumulation of fat in adipose tissues [abdominal subcutaneous (SAT), visceral (VAT), marrow (MAT) and intrahepatic lipids (IHL)], as well as insulin resistance, in subjects with Cushing’s disease (CD). The study included control (C = 27), paired (P = 16) and Cushing’s disease (CD = 10) groups, which underwent biochemical assessment, dual X-ray absorptiometry, TBS, and magnetic resonance imaging to determine fat deposits. The CD group showed higher serum levels of glucose and insulin, as well as HOMA-IR values, but lower circulatory levels of osteocalcin, in comparison to C and P. The CD group exhibited lower L1-L4 BMD than P (P = 1.059 ± 0.141 vs CD = 0.935 ± 0.093 g/cm2, p < 0.05) (Fig 1A). The lumbar spine BMD from the C group was similar to the other groups. TBS was lower in CD than in P and C (C = 1.512±0.077 vs P = 1.405±0.150 vs CD = 1.135±0.136; p<0.05); there was also significant difference between C and P (p<0.05). MAT, VAT, and IHL were higher in CD than in C and P (p<0.05). Considering all subjects, there was a positive association between TBS with both lumbar spine BMD (R2 = 0.45; p<0.0001) and osteocalcin (R2 = 0.44; p = 0.05). TBS was negatively associated with MAT (R2 = 0.49; p = 0.01), VAT (R2 = 0.55; p<0.05), and HOMA-IR (R2 = 0.44; p<0.01). MAT was positively related with VAT (R2 = 0.44; p<0.01) and IHL (R2 = 0.41; p<0.05). In CD, insulin resistance and adipose tissue dysfunction, including high MAT, are active players in bone deterioration, as confirmed by lower lumbar spine BMD and lower TBS. Thus, our findings point to an additional component of the already well-known complex mechanisms of osteoporosis associated with hypercortisolism.
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Affiliation(s)
- Sérgio Luchini Batista
- Department of Clinical Medicine, Ribeirão Preto Medical School, USP, Ribeirão Preto, SP, Brazil
| | | | - Adriana Lelis Carvalho
- Department of Clinical Medicine, Ribeirão Preto Medical School, USP, Ribeirão Preto, SP, Brazil
| | | | | | - Jorge Elias
- Department of Clinical Medicine, Ribeirão Preto Medical School, USP, Ribeirão Preto, SP, Brazil
| | | | - Carlos E. G. Salmon
- Department of Physics, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, USP, Ribeirão Preto, SP, Brazil
| | - Paula C. L. Elias
- Department of Clinical Medicine, Ribeirão Preto Medical School, USP, Ribeirão Preto, SP, Brazil
| | - Ayrton C. Moreira
- Department of Clinical Medicine, Ribeirão Preto Medical School, USP, Ribeirão Preto, SP, Brazil
| | - Margaret Castro
- Department of Clinical Medicine, Ribeirão Preto Medical School, USP, Ribeirão Preto, SP, Brazil
| | - Francisco J. A. de Paula
- Department of Clinical Medicine, Ribeirão Preto Medical School, USP, Ribeirão Preto, SP, Brazil
- * E-mail:
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[Bone microarchitecture and other body composition parameters in patients with overweight or obesity grouped by glucose metabolism disorders]. NUTR HOSP 2019; 36:834-839. [PMID: 31192689 DOI: 10.20960/nh.02473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Introduction Introduction: obesity and DM-2 decrease trabecular bone mass even though cortical bone increase may coexist. Another common finding is presarcopenia/sarcopenia, possibly due to insulin resistance and oxidative stress. It remains to be clarified whether these changes depend on either early (prediabetes) or late (established DM) glucidic alterations, or rather they would be linked predominantly by excess fat mass in obese patients Objectives: to evaluate and compare body composition parameters (bone, muscle and adipose-visceral tissues) in overweight/obese patients grouped by whether or not they present glucidic metabolism disorders. Analyze if there are differences between FRAX vs FRAX adjusted to trabecular bone score TBS in both groups. Methods: sixteen overweight/obese patients were included. In all of them clinical-anthropometric evaluation, bioimpedance, DXA and analysis were performed. They were grouped by glycemia as: a) normal; b) impaired fasting glycemia (IFG); and c) DM-2. Non-parametric tests were performed. Results: no statistically significant differences were found among groups regarding bone microarchitecture, muscle mass or visceral fat. The IFG group showed the highest average muscle mass and visceral fat. Then, patients were reclassified in only two groups, normal glycemia in group 1 and altered glycemia in group 2 (IFG and DM-2), and statistically significant differences were found at the expense of lower trabecular bone microarchitecture in group 2 (p = 0.031) and phosphorus lower levels in group 1 (p = 0.042). Conclusions: in our study, the bone microarchitecture is impaired in patients with altered glycemia and obesity. Studies with larger sample size are needed to establish when these changes take place in the natural evolution of diabetes.
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Messina C, Buonomenna C, Menon G, Magnani S, Albano D, Gitto S, Ulivieri FM, Sconfienza LM. Fat Mass Does Not Increase the Precision Error of Trabecular Bone Score Measurements. J Clin Densitom 2019; 22:359-366. [PMID: 30661747 DOI: 10.1016/j.jocd.2019.01.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Revised: 01/01/2019] [Accepted: 01/02/2019] [Indexed: 01/14/2023]
Abstract
INTRODUCTION Trabecular bone score (TBS) is an indirect index of trabecular microarchitecture derived from lumbar spine dual-energy X-ray absorptiometry. Previous phantom study showed that an increase in soft tissue thickness does not affect TBS reproducibility. We investigated the effect of increasing body mass index (BMI) and waist circumference on TBS precision error on patients, compared to bone mineral density (BMD). METHODOLOGY A population of postmenopausal Caucasian women was distributed in 3 different BMI (normal, overweight, and class I obesity), plus 2 further groups based on waist circumference diameter (≤88 cm and >88 cm, respectively). In vivo precision error was calculated on 30 consecutive subjects that were scanned 2 times, with patient repositioning, using the Hologic QDR-Discovery W densitometer. Coefficient of variation, percent least significant change, and reproducibility were calculated according to the International Society for Clinical Densitometry guidelines. RESULTS Ninety-five women aged 66 ± 10 (mean ± standard deviation) were included. No significant differences were found both for BMD and TBS precision errors, respectively, when comparing BMI groups and waist circumference groups. BMD reproducibility ranged from 95.9% (BMI > 30 kg/m2) to 97.5% (BMI < 25 kg/m2). TBS reproducibility ranged between 95.8% (BMI = 25-29.9 kg/m2, waist circumference > 88 cm) and 96.6% (BMI < 25 kg/m2). With the exception of obese group, a significant difference was found between BMD and TBS reproducibility, being that of TBS slightly lower than BMD. A significant decrease of TBS values was found between normal and obese subjects, as well as between waist circumference groups. CONCLUSIONS TBS precision error is not affected by BMI and waist circumference differences. TBS reproducibility showed to be slightly lower than that of BMD, but this difference was mitigated in obese patients. A negative association was found between the amount of fat mass and TBS mean values.
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Affiliation(s)
- Carmelo Messina
- Unità Operativa di Radiologia Diagnostica ed Interventistica, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy; Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milan, Italy.
| | - Ciriaco Buonomenna
- Scuola di Specializzazione in Radiodiagnostica, Università degli Studi di Milano, Milan, Italy
| | - Giorgia Menon
- Unità Operativa di Radiologia Diagnostica ed Interventistica, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | - Sandro Magnani
- Scuola di Specializzazione in Radiodiagnostica, Università degli Studi di Milano, Milan, Italy
| | - Domenico Albano
- Unità Operativa di Radiologia Diagnostica ed Interventistica, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | - Salvatore Gitto
- Scuola di Specializzazione in Radiodiagnostica, Università degli Studi di Milano, Milan, Italy
| | - Fabio Massimo Ulivieri
- Bone Metabolic Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Medicina Nucleare, Milan, Italy
| | - Luca Maria Sconfienza
- Unità Operativa di Radiologia Diagnostica ed Interventistica, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy; Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milan, Italy
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Eller-Vainicher C, Falchetti A, Gennari L, Cairoli E, Bertoldo F, Vescini F, Scillitani A, Chiodini I. DIAGNOSIS OF ENDOCRINE DISEASE: Evaluation of bone fragility in endocrine disorders. Eur J Endocrinol 2019; 180:EJE-18-0991.R1. [PMID: 31042675 DOI: 10.1530/eje-18-0991] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 04/29/2019] [Indexed: 12/12/2022]
Abstract
An underlying disease affecting bone health is present in up to 40% and 60% of osteoporotic post-menopausal women and men respectively. Among the disorders leading to a secondary form of osteoporosis, the endocrine diseases are highly represented. A frequent finding in patients affected with an endocrine-related forms of bone disease is that the skeletal fragility is partially independent of the bone density, since the fracture risk in these patients is related more to a reduction of bone quality than to a decrease of bone mass. As a consequence, bone mineral density evaluation by dual-X-ray Absorptiometry may be inadequate for establishing the risk of fracture in the setting of the endocrine-related forms of osteoporosis. In the recent years several attempts to non-invasively estimating bone quality have been done. Nowadys, some new tools are available in the clinical practice for optimizing the fracture risk estimation in patients with endocrine disorders. The aim of this review is to summarise the evidences regarding the role of the different imaging tools for evaluating bone density and bone quality in the most frequent forms of endocrine-related osteoporosis, such as obesity, diabetes, acromegaly, thyrotoxicosis, primary hyperparathyroidism, hypercortisolism and hypogonadism. For each of these disorders, data regarding both the current available tools and the future possible new techniques for assessing bone fragility in patients with endocrine diseases are reported.
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Affiliation(s)
- Cristina Eller-Vainicher
- C Eller-Vainicher, Endocrinology and Diabetology Units, Department of Medical Sciences and Community, Fondazione Ca'Granda Ospedale Maggiore Policlinico IRCCS, Milan, 20122, Italy
| | - Alberto Falchetti
- A Falchetti, Endocrinology, EndOsMet, Villa Donatello Private Hospital, , Florence, Italy
| | - Luigi Gennari
- L Gennari, Department of Medicine, Surgery and Neurosciences, University of Siena, Siena, Italy
| | - Elisa Cairoli
- E Cairoli, Unit for Bone Metabolism Diseases and Diabetes and Lab of Endocrine and Metabolic Research, Istituto Auxologico Italiano, IRCCS, Milan, Italy
| | - Francesco Bertoldo
- F Bertoldo, Bone Metabolism and Osteoncology Unit, Dept. Medicine, Universita degli Studi di Verona, Verona, Italy
| | - Fabio Vescini
- F Vescini, Endocrinology and Metabolism Unit, University-Hospital S. Maria della Misericordia Udine, Udine, Italy
| | - Alfredo Scillitani
- A Scillitani, Unit of Endocrinology, Casa Sollievo della Sofferenza Scientific Institute, San Giovanni Rotondo, 71013, Italy
| | - Iacopo Chiodini
- I Chiodini, Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
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Muñoz-Torres M, Manzanares Córdova R, García-Martín A, Avilés-Pérez MD, Nieto Serrano R, Andújar-Vera F, García-Fontana B. Usefulness of Trabecular Bone Score (TBS) to Identify Bone Fragility in Patients with Primary Hyperparathyroidism. J Clin Densitom 2019; 22:162-170. [PMID: 30093271 DOI: 10.1016/j.jocd.2018.06.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 06/18/2018] [Accepted: 06/20/2018] [Indexed: 01/08/2023]
Abstract
BACKGROUND Patients with primary hyperparathyroidism usually show decreased bone strength that are often not well diagnosed by conventional Dual-energy X-ray absorptiometry (DXA). Trabecular Bone Score (TBS) is a new technique for assessing bone microarchitecture indirectly. This cross-sectional study evaluates the usefulness of TBS in patients with primary hyperparathyroidism in clinical practice. METHODOLOGY Bone mineral density (BMD) by DXA and TBS values by TBS InSight® software were determined in 72 patients with primary hyperparathyroidism to analyze its relationship with fragility fractures. A receiver operating curve was performed to evaluate the usefulness of TBS as predictor of fragility fractures. FRAX index with and without adjustment by TBS was calculated. Additionally, longitudinal data of a subgroup of patients according to the therapeutic management were also evaluated. RESULTS A total of 51.4% of the patients showed degraded microarchitecture while only 37.5% of them were diagnosed of osteoporosis by DXA. No significant correlation was found between TBS values and BMD parameters. However, TBS values were lower in osteoporotic patients compared to those classified as normal by BMD (1.16 ± 0.12vs 1.26 ± 0.17; p = 0.043) and in patients with fragility fractures compared to nonfractured patients (1.19 ± 0.03vs 1.24 ± 0.02, p < 0.001). The area under the curve for TBS performed better than the combination of femoral, hip and spine-BMD for prevalent fractures (0.714vs 0.679). TBS-adjusted FRAX was higher than nonadjusted model for both major osteoporotic and hip fracture (4.5% vs 3%; 0.9% vs 0.7%; p < 0.001). At follow-up, an improvement in TBS values was observed in treated patients (medical or surgical) vs nontreated close to significance (1.27 ± 0.10vs 1.24 ± 0.11, p = 0.074). CONCLUSIONS TBS could be a useful tool to identify increased fracture risk in patients with primary hyperparathyroidism underdiagnosed by BMD. Moreover, FRAX adjusted by TBS could be a more robust tool for predicting the risk of osteoporotic fracture to help in therapeutic decisions in this population.
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Affiliation(s)
- Manuel Muñoz-Torres
- Bone Metabolic Unit, Endocrinology and Nutrition Division, Hospital Universitario San Cecilio, Instituto de Investigación Biosanitaria de Granada (Ibs.GRANADA), Granada, Spain; CIBERFES, Instituto de Salud Carlos III, Madrid, Spain; Department of Medicine, University of Granada, Granada, Spain.
| | - Rossana Manzanares Córdova
- Bone Metabolic Unit, Endocrinology and Nutrition Division, Hospital Universitario San Cecilio, Instituto de Investigación Biosanitaria de Granada (Ibs.GRANADA), Granada, Spain
| | - Antonia García-Martín
- Bone Metabolic Unit, Endocrinology and Nutrition Division, Hospital Universitario San Cecilio, Instituto de Investigación Biosanitaria de Granada (Ibs.GRANADA), Granada, Spain; CIBERFES, Instituto de Salud Carlos III, Madrid, Spain
| | - María Dolores Avilés-Pérez
- Bone Metabolic Unit, Endocrinology and Nutrition Division, Hospital Universitario San Cecilio, Instituto de Investigación Biosanitaria de Granada (Ibs.GRANADA), Granada, Spain; CIBERFES, Instituto de Salud Carlos III, Madrid, Spain
| | - Rafael Nieto Serrano
- Nuclear Medicine Unit, Radiology Department, Hospital Universitario San Cecilio, Granada, Spain
| | - Francisco Andújar-Vera
- Hospital Universitario San Cecilio, Instituto de Investigación Biosanitaria de Granada (Ibs.GRANADA), Fundación Pública Andaluza para la investigación Biosanitaria Andalucía Oriental (FIBAO), Granada, Spain
| | - Beatriz García-Fontana
- Bone Metabolic Unit, Endocrinology and Nutrition Division, Hospital Universitario San Cecilio, Instituto de Investigación Biosanitaria de Granada (Ibs.GRANADA), Granada, Spain; CIBERFES, Instituto de Salud Carlos III, Madrid, Spain
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Leere JS, Kruse C, Robaczyk M, Karmisholt J, Vestergaard P. Associations between trabecular bone score and biochemistry in surgically vs conservatively treated outpatients with primary hyperparathyroidism: A retrospective cohort study. Bone Rep 2018; 9:101-109. [PMID: 30116767 PMCID: PMC6092478 DOI: 10.1016/j.bonr.2018.08.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 07/06/2018] [Accepted: 08/08/2018] [Indexed: 12/14/2022] Open
Abstract
PURPOSE Trabecular Bone Score (TBS) is a software-based method for indirect assessment of trabecular bone structure of the spine, based on analysis of pixels in dual energy x-ray absorptiometry (DXA) images. Few studies describe the use of TBS in patients with primary hyperparathyroidism (PHPT). This study aimed at further describing this relationship, investigating possible correlations between biochemistry, body mass index (BMI), fracture incidence and TBS. METHODS Cross-sectional study of 195 patients with verified PHPT, surgically (27) or conservatively (168) treated at the Department of Endocrinology, Aalborg University Hospital. TBS was acquired by reanalyzing DXA-images of the included subjects from the outpatient clinic. Biochemical variables were obtained from clinical routine blood samples taken in relation to the DXA-scans. History of fractures and medical history was obtained from radiology reports and medical charts. RESULTS Patients with active PHPT had a TBS-score signifying a partly degraded bone structure, whereas surgically treated patients had a normal bone structure as judged by TBS, though the difference in TBS-score was not statistically significant. Use of antiresorptive treatment was negatively associated with BMD but not TBS. No correlations between the biochemical variables and TBS were found. A negative correlation between TBS and BMI in patients with PHPT was present. Patients experiencing a fragility fracture had a significantly lowered TBS, BMD and T-Score. CONCLUSION Biochemistry does not seem to predict bone status in terms of TBS in patients with PHPT. TBS is negatively correlated to BMI, which is also seen in patients not suffering from PHPT. The lack of a predictive value for antiresorptive treatment for TBS may raise concern. TBS appears to have a predictive value when assessing risk of fracture in patients with PHPT. MINI ABSTRACT This cross-sectional study investigates possible correlations between biochemical variables, body mass index (BMI) and trabecular bone score (TBS) in 195 patients with primary hyperparathyroidism. It finds no correlation between biochemical variables and TBS, but finds a negative correlation between TBS and BMI and a clear association between fracture incidence and low TBS-score.
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Affiliation(s)
| | - Christian Kruse
- Department of Clinical Medicine, Aalborg University, Denmark
- Steno Diabetes Center North Jutland, Denmark
| | - Maciej Robaczyk
- Department of Endocrinology, Aalborg University Hospital, Denmark
| | - Jesper Karmisholt
- Department of Clinical Medicine, Aalborg University, Denmark
- Department of Endocrinology, Aalborg University Hospital, Denmark
| | - Peter Vestergaard
- Department of Clinical Medicine, Aalborg University, Denmark
- Department of Endocrinology, Aalborg University Hospital, Denmark
- Steno Diabetes Center North Jutland, Denmark
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Nordklint AK, Almdal TP, Vestergaard P, Lundby-Christensen L, Boesgaard TW, Breum L, Gade-Rasmussen B, Sneppen SB, Gluud C, Hemmingsen B, Jensen T, Krarup T, Madsbad S, Mathiesen ER, Perrild H, Tarnow L, Thorsteinsson B, Vestergaard H, Lund SS, Eiken P. The effect of metformin versus placebo in combination with insulin analogues on bone mineral density and trabecular bone score in patients with type 2 diabetes mellitus: a randomized placebo-controlled trial. Osteoporos Int 2018; 29:2517-2526. [PMID: 30027438 DOI: 10.1007/s00198-018-4637-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 07/09/2018] [Indexed: 12/16/2022]
Abstract
UNLABELLED Some antihyperglycemic medications have been found to affect bone metabolism. We assessed the long-term effects of metformin compared with placebo on bone mineral density (BMD) and trabecular bone score (TBS) in patients with type 2 diabetes. Metformin had no significant effect on BMD in the spine and hip or TBS compared with a placebo. INTRODUCTION Patients with type 2 diabetes mellitus (T2DM) have an increased risk of fractures despite a high bone mass. Some antihyperglycemic medications have been found to affect bone metabolism. We assessed the long-term effects of metformin compared with placebo on bone mineral density (BMD) and trabecular bone score (TBS). METHODS This was a sub-study of a multicenter, randomized, 18-month placebo-controlled, double-blinded trial with metformin vs. placebo in combination with different insulin regimens (the Copenhagen Insulin and Metformin Therapy trial) in patients with T2DM. BMD in the spine and hip and TBS in the spine were assessed by dual-energy X-ray absorptiometry at baseline and after 18 months follow-up. RESULTS Four hundred seven patients were included in this sub-study. There were no between-group differences in BMD or TBS. From baseline to 18 months, TBS decreased significantly in both groups (metformin group, - 0.041 [- 0.055, - 0.027]; placebo group - 0.046 [- 0.058, - 0.034]; both p < 0.001). BMD in the spine and total hip did not change significantly from baseline to 18 months. After adjustments for gender, age, vitamin D, smoking, BMI, duration of T2DM, HbA1c, and insulin dose, the TBS between-group differences increased but remained non-significant. HbA1c was negatively associated with TBS (p = 0.009) as was longer duration of diabetes, with the femoral neck BMD (p = 0.003). Body mass index had a positive effect on the hip and femoral neck BMD (p < 0.001, p = 0.045, respectively). CONCLUSIONS Eighteen months of treatment with metformin had no significant effect on BMD in the spine and hip or TBS in patients with T2DM compared with a placebo. TBS decreased significantly in both groups. TRIAL REGISTRATION ClinicalTrials.gov (NCT00657943).
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Affiliation(s)
- A K Nordklint
- Department of Endocrinology and Nephrology, Nordsjællands University Hospital, Hillerød, Denmark.
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - T P Almdal
- Department of Endocrinology, Rigshospitalet, Copenhagen, Denmark
| | - P Vestergaard
- Department of Clinical Medicine and Endocrinology, Aalborg University Hospital, Aalborg, Denmark
- Steno Diabetes Center North Jutland, Aalborg, Denmark
| | - L Lundby-Christensen
- Department of Paediatrics and Adolescent Medicine, Nordsjællands Hospital, Hillerød, Denmark
| | | | - L Breum
- Department of Medicine, Zealand University Hospital, Køge, Denmark
| | - B Gade-Rasmussen
- Department of Endocrinology, Copenhagen University Hospital, Hvidovre, Denmark
| | - S B Sneppen
- Department of Medicine, Gentofte, Copenhagen University Hospital, Hellerup, Denmark
| | - C Gluud
- Copenhagen Trial Unit, Centre for Clinical Intervention Research, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - B Hemmingsen
- Department of Endocrinology and Nephrology, Nordsjællands University Hospital, Hillerød, Denmark
- Copenhagen Trial Unit, Centre for Clinical Intervention Research, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - T Jensen
- Department of Endocrinology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - T Krarup
- Department of Endocrinology, Bispebjerg, Copenhagen University Hospital, Copenhagen, Denmark
| | - S Madsbad
- Department of Endocrinology, Copenhagen University Hospital, Hvidovre, Denmark
- Astra - Zeneca, Gothenburg, Sweden
| | - E R Mathiesen
- Department of Endocrinology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Astra - Zeneca, Gothenburg, Sweden
| | - H Perrild
- Department of Endocrinology, Bispebjerg, Copenhagen University Hospital, Copenhagen, Denmark
| | - L Tarnow
- Department of Endocrinology and Nephrology, Nordsjællands University Hospital, Hillerød, Denmark
- Steno Diabetes Center Sjælland, Holbæk, Denmark
| | - B Thorsteinsson
- Department of Endocrinology and Nephrology, Nordsjællands University Hospital, Hillerød, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - H Vestergaard
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Endocrinology, Herlev, Copenhagen University Hospital, Herlev, Denmark
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, University of Copenhagen, Copenhagen, Denmark
| | - S S Lund
- Steno Diabetes Center Copenhagen, Gentofte, Denmark
- Boehringer Ingelheim Pharma GmbH & Co. KG, Ingelheim, Germany
| | - P Eiken
- Department of Endocrinology and Nephrology, Nordsjællands University Hospital, Hillerød, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Tahani N, Nieddu L, Prossomariti G, Spaziani M, Granato S, Carlomagno F, Anzuini A, Lenzi A, Radicioni AF, Romagnoli E. Long-term effect of testosterone replacement therapy on bone in hypogonadal men with Klinefelter Syndrome. Endocrine 2018; 61:327-335. [PMID: 29696556 DOI: 10.1007/s12020-018-1604-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 04/13/2018] [Indexed: 02/06/2023]
Abstract
PURPOSE To assess different aspects of bone damage in untreated adult patients with Klinefelter Syndrome (KS) before and during testosterone replacement therapy (TRT). METHODS Fifteen untreated hypogonadal men with KS and 26 control subjects (C) matched for age and BMI were recruited. Sex hormone levels were measured in all subjects. Lumbar spine (LS) and femoral (neck: FN and total hip: TH) bone mineral density (BMD), trabecular bone score (TBS), hip structure analysis (HSA) and fat measures (percentage of fat mass, android/gynoid ratio and visceral adipose tissue) were evaluated by DEXA. In KS patients, blood analysis and DEXA measurements were assessed at baseline and repeated yearly for three years during TRT. RESULTS Fat measures were significantly higher in KS than C (p < 0.01). In contrast, mean LS, FN and TH BMD were significantly reduced in KS compared to C (p < 0.01), while there was no difference in TBS. HSA revealed a significantly lower cortical thickness and significantly higher buckling ratio in KS compared to C at all femoral sites (p < 0.01). In KS patients, TRT significantly increased BMD at LS only, but did not improve TBS and HSA parameters. Fat measures were inversely associated with TBS values, and TRT did not influence this relationship. CONCLUSIONS In untreated hypogonadal men with KS, lumbar and femoral BMD was reduced, and femoral bone quality was impaired. Adiposity seemed to have a detrimental effect on lumbar bone microarchitecture, as indirectly evaluated by TBS. However, TRT failed to remedy these negative effects on bone.
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Affiliation(s)
- N Tahani
- Centre for Rare Diseases, Policlinico Umberto I, Rome, Italy.
- Department of Experimental Medicine, Section of Medical Pathophysiology, Food Science and Endocrinology, Sapienza University of Rome, Rome, Italy.
| | - L Nieddu
- Faculty of Economics, UNINT University for International Studies of Rome, Rome, Italy
| | - G Prossomariti
- Department of Radiology, Sapienza University of Rome, Rome, Italy
| | - M Spaziani
- Centre for Rare Diseases, Policlinico Umberto I, Rome, Italy
- Department of Experimental Medicine, Section of Medical Pathophysiology, Food Science and Endocrinology, Sapienza University of Rome, Rome, Italy
| | - S Granato
- Centre for Rare Diseases, Policlinico Umberto I, Rome, Italy
- Department of Experimental Medicine, Section of Medical Pathophysiology, Food Science and Endocrinology, Sapienza University of Rome, Rome, Italy
| | - F Carlomagno
- Centre for Rare Diseases, Policlinico Umberto I, Rome, Italy
- Department of Experimental Medicine, Section of Medical Pathophysiology, Food Science and Endocrinology, Sapienza University of Rome, Rome, Italy
| | - A Anzuini
- Department of Experimental Medicine, Section of Medical Pathophysiology, Food Science and Endocrinology, Sapienza University of Rome, Rome, Italy
| | - A Lenzi
- Department of Experimental Medicine, Section of Medical Pathophysiology, Food Science and Endocrinology, Sapienza University of Rome, Rome, Italy
| | - A F Radicioni
- Centre for Rare Diseases, Policlinico Umberto I, Rome, Italy
- Department of Experimental Medicine, Section of Medical Pathophysiology, Food Science and Endocrinology, Sapienza University of Rome, Rome, Italy
| | - E Romagnoli
- Department of Experimental Medicine, Section of Medical Pathophysiology, Food Science and Endocrinology, Sapienza University of Rome, Rome, Italy
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Tay YKD, Cusano NE, Rubin MR, Williams J, Omeragic B, Bilezikian JP. Trabecular Bone Score in Obese and Nonobese Subjects With Primary Hyperparathyroidism Before and After Parathyroidectomy. J Clin Endocrinol Metab 2018; 103:1512-1521. [PMID: 29373705 PMCID: PMC6276655 DOI: 10.1210/jc.2017-02169] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 01/10/2018] [Indexed: 01/06/2023]
Abstract
CONTEXT Obesity has been shown to be unfavorable to skeletal microarchitecture when assessed by trabecular bone score (TBS). The influence of adiposity on skeletal microstructure in primary hyperparathyroidism (PHPT) has not yet been evaluated. OBJECTIVE To investigate the effect of obesity on TBS and bone mineral density (BMD) in subjects with PHPT at baseline and through 2 years after parathyroidectomy. DESIGN Prospective observational study. SETTING Referral center. PATIENTS OR OTHER PARTICIPANTS Thirty men and women with PHPT undergoing parathyroid surgery. MAIN OUTCOME MEASURES TBS and BMD by dual-energy X-ray absorptiometry (DXA). RESULTS There were notable improvements in lumbar spine and femoral neck BMD in the obese (lumbar spine: 4.3 ± 4.7%, femoral neck: 3.8 ± 6.6%; P < 0.05 for both) and nonobese subjects (lumbar spine: 3.8 ± 5.6%, femoral neck 3.1 ± 5.0%; P < 0.05 for both) but no marked change in TBS in either group at 24 months postparathyroidectomy. Obese subjects had fully degraded TBS values compared with the nonobese subjects, whose TBS values were minimally below normal throughout the study (baseline: 1.199 ± 0.086 vs 1.327 ± 0.099, respectively; P = 0.003; 24 months: 1.181 ± 0.061 vs 1.352 ± 0.114, respectively; P = 0.001), despite improvements in BMD. CONCLUSIONS The detrimental effect of obesity on TBS, an index of bone quality, was demonstrated in subjects with PHPT. Obesity was associated with fully degraded skeletal microarchitecture as measured by TBS in PHPT, despite similar values in bone density by DXA compared with nonobese subjects. TBS values did not improve postparathyroidectomy in either obese or nonobese subjects.
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Affiliation(s)
- Yu-Kwang Donovan Tay
- Department of Medicine, Division of Endocrinology, College of Physicians &
Surgeons, Columbia University, New York, New York
- Department of Medicine, Sengkang Health, Singapore
- Osteoporosis and Bone Metabolism Unit, Department of Endocrinology, Singapore
General Hospital, Singapore
| | - Natalie E Cusano
- Department of Medicine, Division of Endocrinology, College of Physicians &
Surgeons, Columbia University, New York, New York
| | - Mishaela R Rubin
- Department of Medicine, Division of Endocrinology, College of Physicians &
Surgeons, Columbia University, New York, New York
| | - John Williams
- Department of Medicine, Division of Endocrinology, College of Physicians &
Surgeons, Columbia University, New York, New York
| | - Beatriz Omeragic
- Department of Medicine, Division of Endocrinology, College of Physicians &
Surgeons, Columbia University, New York, New York
| | - John P Bilezikian
- Department of Medicine, Division of Endocrinology, College of Physicians &
Surgeons, Columbia University, New York, New York
- Correspondence and Reprint Requests: John P. Bilezikian, MD,
Division of Endocrinology, Department of Medicine, College of Physicians and Surgeons,
Columbia University, 630 West 168th Street, New York, New York 10032. E-mail:
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Holloway KL, De Abreu LLF, Hans D, Kotowicz MA, Sajjad MA, Hyde NK, Pasco JA. Trabecular Bone Score in Men and Women with Impaired Fasting Glucose and Diabetes. Calcif Tissue Int 2018; 102:32-40. [PMID: 28965154 DOI: 10.1007/s00223-017-0330-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Accepted: 09/16/2017] [Indexed: 12/28/2022]
Abstract
Diabetes is associated with increased skeletal fragility, despite higher bone mineral density (BMD). Alternative measures are necessary to more accurately determine fracture risk in individuals with diabetes. Therefore, we aimed to describe the relationship between trabecular bone score (TBS) and normoglycaemia, impaired fasting glucose (IFG) and diabetes and determine whether TBS-adjusted FRAX (Aus) score differed between these groups. This study included 555 men (68.7 ± 12.2 years) and 514 women (62.0 ± 12.0 years), enrolled in the observational Geelong Osteoporosis Study. IFG was considered as fasting plasma glucose (FPG) ≥ 5.5 mmol/L and diabetes as FPG ≥ 7.0 mmol/L, with the use of antihyperglycaemic medication and/or self-report. Using multivariable regression, the relationship between groups and TBS was determined. Men and women (all ages) with diabetes had lower mean TBS compared to those with normoglycaemia, in models adjusted for age, height and weight/waist circumference (all p < 0.05). Men with IFG had lower mean TBS in the age-adjusted models only (all p < 0.05). The addition of TBS to the FRAX score improved the discrimination between glycaemia groups, particularly for younger women (< 65 years). There was no difference in TBS detected between normoglycaemia and IFG; however, those with diabetes had lower TBS. Thus, the increased fracture risk in men and women with diabetes may be a result of BMD-independent bone deterioration. TBS adjustment of FRAX scores may be useful for younger women (< 65 years) with diabetes. This suggests that halting or reversing progression from IFG to diabetes could be important to prevent skeletal fragility in diabetes.
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Affiliation(s)
| | | | - Didier Hans
- Center of Bone Diseases, Bone & Joint Department, Lausanne University Hospital, Lausanne, Switzerland
| | - Mark A Kotowicz
- Deakin University, Geelong, Australia
- Department of Medicine, Melbourne Medical School - Western Campus, The University of Melbourne, St Albans, Australia
- Barwon Health, Geelong, Australia
| | | | - Natalie K Hyde
- Deakin University, Geelong, Australia
- Bone and Mineral Medicine, Royal Melbourne Hospital, University of Melbourne, Parkville, VIC, Australia
| | - Julie A Pasco
- Deakin University, Geelong, Australia
- Department of Medicine, Melbourne Medical School - Western Campus, The University of Melbourne, St Albans, Australia
- Barwon Health, Geelong, Australia
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El Khoury C, Pinti A, Lespessailles E, Maalouf G, Watelain E, El Khoury G, Berro AJ, Ayoub ML, Toumi H, El Hage R. Physical Performance Variables and Bone Mineral Density in a Group of Young Overweight and Obese Men. J Clin Densitom 2018; 21:41-47. [PMID: 27546557 DOI: 10.1016/j.jocd.2016.07.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 04/27/2016] [Accepted: 07/27/2016] [Indexed: 01/28/2023]
Abstract
The aim of this study was to explore the relationships between performances obtained in different physical tests and bone parameters (bone mineral density [BMD], bone mineral content, hip geometry indices, and trabecular bone score [TBS]) in a group of young Lebanese overweight and obese adult men. Fifty-two overweight and/or obese (body mass index > 25 kg/m2) young men whose ages range from 18 to 35 yr participated in this study. Weight and height were measured, and body mass index was calculated. Body composition, BMD, cross-sectional area and section modulus (Z) of the femoral neck (FN), and TBS were measured by dual-energy X-ray absorptiometry. Maximum oxygen consumption (VO2 max, in liter per minute) was determined by direct measurement while exercising on a medical treadmill. One-repetition-maximum half-squat and maximum power (P max) of the lower limbs were measured using validated exercises. Lean mass was a positive determinant of whole-body bone mineral content (r = 0.71, p < 0.001), FN cross-sectional area (r = 0.51, p < 0.001), and FN Z (r = 0.58, p < 0.001). VO2 max (in liter per minute) was a positive determinant of whole-body BMD (r = 0.47, p < 0.001), total hip BMD (r = 0.43, p < 0.01), and FN BMD (r = 0.42, p < 0.01). VO2 max (in milliliter per minute per kilogram) was a positive determinant of TBS (r = 0.30, p < 0.05). One repetition maximum was a positive determinant of L1-L4 BMD (r = 0.33, p < 0.05). This study suggests that VO2 max (in liter per minute) is a positive determinant of BMD, and VO2 max (in milliliter per minute per kilogram) is a positive determinant of TBS in overweight and obese men.
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Affiliation(s)
- César El Khoury
- Department of Physical Education, Faculty of Arts and Social Sciences, University of Balamand, El-Koura, Lebanon; I3MTO, EA4708, Université d'Orléans, Orléans, France
| | - Antonio Pinti
- I3MTO, EA4708, Université d'Orléans, Orléans, France
| | - Eric Lespessailles
- I3MTO, EA4708, Université d'Orléans, Orléans, France; Service de Rhumatologie, CHR Orléans, Orléans, France
| | - Ghassan Maalouf
- Bellevue University Medical Center, Faculty of Medicine, Saint Joseph University, Mansourieh, Lebanon
| | - Eric Watelain
- UVHC, LAMIH-Département SHV, Université Lille Nord de France, Valenciennes, France; UMR 8201, CNRS, Valenciennes, France
| | - Georges El Khoury
- Department of Physical Education, Faculty of Arts and Social Sciences, University of Balamand, El-Koura, Lebanon
| | - Abdel-Jalil Berro
- Department of Physical Education, Faculty of Arts and Social Sciences, University of Balamand, El-Koura, Lebanon
| | - Marie-Louise Ayoub
- Department of Physical Education, Faculty of Arts and Social Sciences, University of Balamand, El-Koura, Lebanon
| | - Hechmi Toumi
- I3MTO, EA4708, Université d'Orléans, Orléans, France; Service de Rhumatologie, CHR Orléans, Orléans, France
| | - Rawad El Hage
- Department of Physical Education, Faculty of Arts and Social Sciences, University of Balamand, El-Koura, Lebanon.
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Is Trabecular Bone Score Valuable in Bone Microstructure Assessment after Gastric Bypass in Women with Morbid Obesity? Nutrients 2017; 9:nu9121314. [PMID: 29207490 PMCID: PMC5748764 DOI: 10.3390/nu9121314] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 11/22/2017] [Accepted: 11/28/2017] [Indexed: 12/18/2022] Open
Abstract
Introduction: The effects of bariatric surgery on skeletal health raise many concerns. Trabecular bone score (TBS) is obtained through the analysis of lumbar spine dual X-ray absorptiometry (DXA) images and allows an indirect assessment of skeletal microarchitecture (MA). The aim of our study was to evaluate the changes in bone mineral density (BMD) and alterations in bone microarchitecture assessed by TBS in morbidly obese women undergoing Roux-en-Y gastric bypass (RYGB), over a three-year follow-up. Material/Methods: A prospective study of 38 morbidly obese white women, aged 46.3 ± 8.2 years, undergoing RYGB was conducted. Biochemical analyses and DXA scans with TBS evaluation were performed before and at one year and three years after surgery. Results: Patients showed normal calcium and phosphorus plasma concentrations throughout the study. However, 25-hydroxyvitamin D (25(OH)D3) decreased, and 71% of patients had a vitamin D deficiency at three years. BMD at femoral neck and lumbar spine (LSBMD) significantly decreased 13.53 ± 5.42% and 6.03 ± 6.79%, respectively, during the three-year follow-up; however Z-score values remained above those for women of the same age. TBS was within normal ranges at one and three years (1.431 ± 106 and 1.413 ± 85, respectively), and at the end of the study, 73.7% of patients had normal bone MA. TBS at three years correlated inversely with age (r = −0.41, p = 0.010), body fat (r = −0.465, p = 0.004) and greater body fat deposited in trunk (r = −0.48, p = 0.004), and positively with LSBMD (r = 0.433, p = 0.007), fat mass loss (r = 0.438, p = 0.007) and lean mass loss (r = 0.432, p = 0.008). In the regression analysis, TBS remained associated with body fat (β = −0.625, p = 0.031; R2 = 0.47). The fracture risk, calculated by FRAX® (University of Sheffield, Sheffield, UK), with and without adjustment by TBS, was low. Conclusion: Women undergoing RYGB in the mid-term have a preserved bone MA, assessed by TBS.
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Ponti F, Guerri S, Sassi C, Battista G, Guglielmi G, Bazzocchi A. Imaging of diabetic bone. Endocrine 2017; 58:426-441. [PMID: 28293856 DOI: 10.1007/s12020-017-1278-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 02/24/2017] [Indexed: 01/02/2023]
Abstract
Diabetes is an important concern in terms of medical and socioeconomic costs; a high risk for low-trauma fractures has been reported in patients with both type 1 and type 2 diabetes. The mechanism involved in the increased fracture risk from diabetes is highly complex and still not entirely understood; obesity could play an important role: recent evidence suggests that the influence of fat on bone is mainly dependent on the pattern of regional fat deposition and that an increased amount of visceral adipose tissue negatively affects skeletal health.Correct and timely individuation of people with high fracture risk is critical for both prevention and treatment: Dual-energy X-ray Absorptiometry (currently the "gold standard" for diagnosis of osteoporosis) underestimates fracture risk in diabetic patients and therefore is not sufficient by itself to investigate bone status. This paper is focused on imaging, covering different modalities involved in the evaluation of skeletal deterioration in diabetes, discussing the limitations of conventional methods and exploring the potential of new tools and recent high-resolution techniques, with the intent to provide interesting insight into pathophysiology and fracture risk.
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Affiliation(s)
- Federico Ponti
- Diagnostic and Interventional Radiology, The "Rizzoli" Orthopaedic Institute, Via G. C. Pupilli 1, 40136, Bologna, Italy
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Division of Radiology S.Orsola-Malpighi Hospital, University of Bologna, Via G. Massarenti 9, 40138, Bologna, Italy
| | - Sara Guerri
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Division of Radiology S.Orsola-Malpighi Hospital, University of Bologna, Via G. Massarenti 9, 40138, Bologna, Italy
| | - Claudia Sassi
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Division of Radiology S.Orsola-Malpighi Hospital, University of Bologna, Via G. Massarenti 9, 40138, Bologna, Italy
| | - Giuseppe Battista
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Division of Radiology S.Orsola-Malpighi Hospital, University of Bologna, Via G. Massarenti 9, 40138, Bologna, Italy
| | - Giuseppe Guglielmi
- Department of Radiology, University of Foggia, Viale Luigi Pinto 1, 71100, Foggia, Italy
- Department of Radiology, Scientific Institute "Casa Sollievo della Sofferenza" Hospital, Viale Cappuccini 1, 71013, San Giovanni Rotondo, Foggia, Italy
| | - Alberto Bazzocchi
- Diagnostic and Interventional Radiology, The "Rizzoli" Orthopaedic Institute, Via G. C. Pupilli 1, 40136, Bologna, Italy.
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Bimonte VM, Fittipaldi S, Marocco C, Emerenziani GP, Fornari R, Guidetti L, Poggiogalle E, Nicolai E, Di Luigi L, Donini LM, Baldari C, Lenzi A, Greco EA, Migliaccio S. Physical activity and hypocaloric diet recovers osteoblasts homeostasis in women affected by abdominal obesity. Endocrine 2017; 58:340-348. [PMID: 27981516 DOI: 10.1007/s12020-016-1193-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Accepted: 11/28/2016] [Indexed: 12/21/2022]
Abstract
Obesity is a multifactorial disease linked to metabolic chronic disorders such as diabetes, and hypertension. Also, it has recently been associated with skeletal alterations and low bone mineral density. We previously demonstrated that exposure of osteoblasts to sera of sedentary subjects affected by obesity alters cell homeostasis in vitro, leading to disruption of intracellular differentiation pathways and cellular activity. Thus, the purpose of the present study has been to evaluate whether sera of sedentary obese women, subjected to physical activity and hypocaloric diet, could recover osteoblast homeostasis in vitro as compared to the sera of same patients before intervention protocol. To this aim, obese women were evaluated at time 0 and after 4, 6, and 12 months of individualized prescribed physical activity and hypocaloric diet. Dual-energy-X-ray absorptiometry measurements were performed at each time point, as well as blood was collected at the same points. Cells were incubated with sera of subjects before and after physical activity as described: obese at baseline and after for 4, 6, and 12 months of physical activity and nutritional protocol intervention. Osteoblasts exposed to sera of patients, who displayed increased lean and decreased fat mass (from 55.5 ± 6.5 to 57.1 ± 5.6% p ≤ 0.05; from 44.5 ± 1.1 to 40.9 ± 2.6% p ≤ 0.01 respectively), showed a time-dependent increase of Wnt/β-catenin signaling, versus cells exposed to sera of obese patients before intervention protocol, suggesting recovery of osteoblast homeostasis upon improvement of body composition. An increase in β-catenin nuclear accumulation and nuclear translocation was also observed, accompanied by an increase in Adiponectin receptor 1 protein expression, suggesting positive effect on cell differentiation program. Furthermore, a decrease in sclerostin amount and an increase of type 1 procollagen amino-terminal-propeptide were depicted as compared to baseline, proportionally to the time of physical activity, suggesting a recovery of bone remodeling modulation and an increase of osteoblast activity induced by improvement of body composition. In conclusion, our results show for the first time that sera of obese sedentary women who increased lean mass and decreased fat mass, by physical activity and hypocaloric diet, rescue osteoblasts differentiation and activity likely due to a reactivation of Wnt/β-catenin-pathway, suggesting that a correct life style can improve skeletal metabolic alteration induced by obesity.
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Affiliation(s)
- Viviana M Bimonte
- Department of Movement, Human and Health Sciences, Section of Health Sciences, Foro Italico University, Rome, Italy
| | - Simona Fittipaldi
- Department of Movement, Human and Health Sciences, Section of Health Sciences, Foro Italico University, Rome, Italy
- IRCCS S.D.N., Naples, Italy
| | - Chiara Marocco
- Department of Experimental Medicine, Section of Medical Pathophysiology, Endocrinology and Nutrition, Sapienza University, Rome, Italy
| | - Gian Pietro Emerenziani
- Department of Movement, Human and Health Sciences, Section of Health Sciences, Foro Italico University, Rome, Italy
| | - Rachele Fornari
- Department of Experimental Medicine, Section of Medical Pathophysiology, Endocrinology and Nutrition, Sapienza University, Rome, Italy
| | - Laura Guidetti
- Department of Movement, Human and Health Sciences, Section of Health Sciences, Foro Italico University, Rome, Italy
| | - Eleonora Poggiogalle
- Department of Experimental Medicine, Section of Medical Pathophysiology, Endocrinology and Nutrition, Sapienza University, Rome, Italy
| | | | - Luigi Di Luigi
- Department of Movement, Human and Health Sciences, Section of Health Sciences, Foro Italico University, Rome, Italy
| | - Lorenzo M Donini
- Department of Experimental Medicine, Section of Medical Pathophysiology, Endocrinology and Nutrition, Sapienza University, Rome, Italy
| | - Carlo Baldari
- Department of Movement, Human and Health Sciences, Section of Health Sciences, Foro Italico University, Rome, Italy
| | - Andrea Lenzi
- Department of Experimental Medicine, Section of Medical Pathophysiology, Endocrinology and Nutrition, Sapienza University, Rome, Italy
| | - Emanuela A Greco
- Department of Experimental Medicine, Section of Medical Pathophysiology, Endocrinology and Nutrition, Sapienza University, Rome, Italy
| | - Silvia Migliaccio
- Department of Movement, Human and Health Sciences, Section of Health Sciences, Foro Italico University, Rome, Italy.
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42
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Viljakainen HT, Koistinen HA, Tervahartiala T, Sorsa T, Andersson S, Mäkitie O. Metabolic milieu associates with impaired skeletal characteristics in obesity. PLoS One 2017. [PMID: 28640843 PMCID: PMC5480955 DOI: 10.1371/journal.pone.0179660] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
High leptin concentration, low-grade inflammation, and insulin resistance often coexist in obese subjects; this adverse metabolic milieu may be the main culprit for increased fracture risk and impaired bone quality seen in patients with type 2 diabetes. We examined the associations of leptin, hs (high sensitivity)- CRP and insulin resistance with bone turnover markers (BTMs) and bone characteristics in 55 young obese adults (median BMI 40 kg/m2) and 65 non-obese controls. Mean age of the subjects was 19.5 ± 2.5 years (mean ± SD). Concentrations of leptin, adiponectin, hs-CRP, MMP-8 and TIMP-1, fasting plasma glucose and insulin (to calculate HOMA), BTMs (BAP, P1NP, CTX-1, and TRAC5b) were measured. Bone characteristics were determined with pQCT at radius and tibia, and with DXA for central sites. Leptin, hs-CRP and HOMA correlated inversely with BTMs: the partial coefficients were 1.5–1.9 fold higher in males than in females. After adjusting for age, BMI, and other endocrine factors, leptin displayed an independent effect in males on radial bone mass (p = 0.019), tibial trabecular density (p = 0.025) and total hip BMD (p = 0.043), with lower densities in males with high leptin. In females, the model adjusting for age, BMI, and other endocrine factors, revealed that hs-CRP had independent effects on radial bone mass (p = 0.034) and lumbar spine BMD (p = 0.016), women with high hs-CRP having lower values. Partial correlations of adiponectin and TIMP-1 with bone characteristics were discrepant; MMP-8 showed no associations. In conclusion, in young obese adults and their controls, leptin, hs-CRP and HOMA associate inversely with BTMs and bone characteristics. Leptin appears to be the key independent effector in males, whereas hs-CRP displayed a predominant role in females.
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Affiliation(s)
- Heli T. Viljakainen
- Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Folkhälsan Research Centre, Helsinki, Finland
- * E-mail:
| | - Heikki A. Koistinen
- Department of Medicine and Abdominal Center: Endocrinology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Minerva Foundation Institute for Medical Research, Helsinki, Finland
| | - Taina Tervahartiala
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Timo Sorsa
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Sture Andersson
- Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Outi Mäkitie
- Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Folkhälsan Research Centre, Helsinki, Finland
- Center for Molecular Medicine, Karolinska Institutet, and Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
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Budzik JF, Lefebvre G, Behal H, Verclytte S, Hardouin P, Teixeira P, Cotten A. Bone marrow perfusion measured with dynamic contrast enhanced magnetic resonance imaging is correlated to body mass index in adults. Bone 2017; 99:47-52. [PMID: 28347909 DOI: 10.1016/j.bone.2017.03.048] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 03/03/2017] [Accepted: 03/07/2017] [Indexed: 01/02/2023]
Abstract
Bone marrow metabolism is complex and far from being fully understood. Novel aspects, such as the roles of bone marrow adiposity and vascularisation in bone metabolism currently attract attention. There is also a growing interest in the influence obesity might have on bone metabolism. Our objective was to determine the effect of BMI on bone marrow perfusion parameters using dynamic contrast-enhanced magnetic resonance imaging. This prospective monocentric study was approved by our local Ethics committee. Written consent was obtained. The right hip of 59 adults under 60years old (mean age 37.5) was imaged with a dynamic 3D T1 spoiled gradient echo magnetic resonance imaging sequence. Mean BMI was 24.8 (+/-4.4). Perfusion parameters were measured in the acetabulum and femoral neck, in the greater trochanter, in the femoral head epiphysis and in the subcutaneous adipose tissue. Associations between perfusion parameters and BMI were studied using a linear mixed model adjusted for age and sex effects. Our results showed that as the BMI increased, the exchanges between blood and bone marrow appeared more important (increased Ktrans and Kep values, p=0.018 and p=0.002 respectively) and the intramedullary blood flow appeared increased (lower time to peak values, p=0.0002). In the subcutaneous fat, as the BMI increased, the vascularization decreased (lower area under the curve and initial slope values, p=0.019 and p=0.013 respectively). These results suggest that there is a relation between bone marrow perfusion and BMI, and that subcutaneous fat and bone marrow fat have different microvascular behaviours. Researchers must be aware of the effect of BMI on bone marrow perfusion parameters when they build a MR research protocol and analyse their data. A better understanding of these findings may provide the basis for the management of obesity-related bone changes.
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Affiliation(s)
- Jean-François Budzik
- Lille Catholic Hospitals, Imaging Department, Lille Catholic University, Lille, France; PMOI Physiopathology of Inflammatory Bone Diseases, EA 4490, Lille, France.
| | - Guillaume Lefebvre
- Lille Regional University Hospital, Musculoskeletal Imaging Department, University of Lille Nord de France, Lille, France.
| | - Hélène Behal
- Lille Regional University Hospital, Biostatistics Department, University of Lille Nord de France, Lille, France.
| | - Sébastien Verclytte
- Lille Catholic Hospitals, Imaging Department, Lille Catholic University, Lille, France.
| | - Pierre Hardouin
- PMOI Physiopathology of Inflammatory Bone Diseases, EA 4490, University of Lille Nord de France, Lille, France.
| | - Pedro Teixeira
- Nancy Regional University Hospital, Imaging Department, University of Lorraine, Nancy, France.
| | - Anne Cotten
- Lille Catholic Hospitals, Imaging Department, Lille Catholic University, Lille, France; PMOI Physiopathology of Inflammatory Bone Diseases, EA 4490, University of Lille Nord de France, Lille, France.
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El Khoury G, Zouhal H, Cabagno G, El Khoury C, Rizkallah M, Maalouf G, El Hage R. Bone Variables in Active Overweight/Obese Men and Sedentary Overweight/Obese Men. J Clin Densitom 2017; 20:239-246. [PMID: 28034589 DOI: 10.1016/j.jocd.2016.10.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 10/28/2016] [Accepted: 10/31/2016] [Indexed: 12/12/2022]
Abstract
The aim of this study was to compare bone variables in active overweight/obese men and sedentary overweight/obese men. Thirty-seven active overweight/obese men and 45 sedentary overweight/obese men participated in this study. Weight and height were measured, and body mass index was calculated. Body composition and bone variables (bone mineral content [BMC], bone mineral density [BMD], geometric indices of hip bone strength, and trabecular bone score) were measured by DXA. Physical activity level, daily calcium intake, daily protein intake, and sleep duration were measured by validated questionnaires. Maximum oxygen consumption (VO2 max) was determined by direct measurement while exercising on a medical treadmill. One-repetition-maximum half-squat of the lower limbs was measured using a validated protocol. Body weight and body mass index were higher in sedentary overweight/obese men than in active overweight/obese men. In the whole population (n = 82), VO2 max (in liter per minute), lean mass, and one-repetition-maximum half-squat were positively correlated to BMC, BMD, and geometric indices of hip bone strength (cross-sectional area and section modulus [Z] of the femoral neck [FN]). After adjusting for body weight using a 1-way analysis of covariance, active overweight/obese men displayed higher whole-body BMC, lumbar spine BMD, total hip BMD, FN BMD, FN cross-sectional area, and FN Z values than sedentary overweight/obese men. In conclusion, the current study suggests that physical activity level positively affects bone variables in overweight/obese men. Optimizing lean mass and muscular strength of the lower limbs can help to prevent osteoporosis in overweight and obese men.
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Affiliation(s)
- Georges El Khoury
- Department of Physical Education, Faculty of Arts and Social Sciences, University of Balamand, El-Koura, Lebanon; Laboratoire VIP'S, UFR-APS, Campus la Harpe, Université Rennes 2, Rennes, France
| | - Hassane Zouhal
- Laboratoire Mouvement Sport Sante, UFR APS, Rennes, France
| | - Geneviève Cabagno
- Laboratoire VIP'S, UFR-APS, Campus la Harpe, Université Rennes 2, Rennes, France
| | - César El Khoury
- Department of Physical Education, Faculty of Arts and Social Sciences, University of Balamand, El-Koura, Lebanon; I3MTO, EA 4708, Université d'Orléans, Cedex 1, France
| | - Maroun Rizkallah
- Bellevue University Medical Center, Faculty of Medicine, Saint Joseph University, Mansourieh, Lebanon
| | - Ghassan Maalouf
- Bellevue University Medical Center, Faculty of Medicine, Saint Joseph University, Mansourieh, Lebanon
| | - Rawad El Hage
- Department of Physical Education, Faculty of Arts and Social Sciences, University of Balamand, El-Koura, Lebanon.
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45
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Silva BC, Leslie WD. Trabecular Bone Score: A New DXA-Derived Measurement for Fracture Risk Assessment. Endocrinol Metab Clin North Am 2017; 46:153-180. [PMID: 28131130 DOI: 10.1016/j.ecl.2016.09.005] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Trabecular bone score (TBS) is a novel method that assesses skeletal texture from spine dual-energy X-ray absorptiometry (DXA) images. TBS improves fracture-risk prediction beyond that provided by DXA bone mineral density (BMD) and clinical risk factors, and can be incorporated to the Word Health Organization Fracture Risk Assessment tool (FRAX®) to enhance fracture prediction. There is insufficient evidence that TBS can be used to monitor treatment with bisphosphonates. TBS may be particularly helpful to assess fracture risk in diabetes. This article reviews technical and clinical aspects of TBS and its potential utility as a clinical tool to predict fracture risk.
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Affiliation(s)
- Barbara C Silva
- Department of Medicine, UNI-BH, Santa Casa Hospital, Uberaba, 370/705, Belo Horizonte, MG 30180-010, Brazil.
| | - William D Leslie
- Department of Medicine, University of Manitoba, (C5121) 409 Tache Avenue, Winnipeg, MB R2H 2A6, Canada
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46
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Langsetmo L, Vo TN, Ensrud KE, Taylor BC, Cawthon PM, Schwartz AV, Bauer DC, Orwoll ES, Lane NE, Barrett-Connor E, Schousboe JT. The Association Between Trabecular Bone Score and Lumbar Spine Volumetric BMD Is Attenuated Among Older Men With High Body Mass Index. J Bone Miner Res 2016; 31:1820-1826. [PMID: 27147108 PMCID: PMC5253074 DOI: 10.1002/jbmr.2867] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 04/06/2016] [Accepted: 05/04/2016] [Indexed: 01/11/2023]
Abstract
Trabecular bone score (TBS) has been proposed as a dual-energy X-ray absorptiometry (DXA) derived measure of underlying quality of trabecular bone; however, TBS is not considered valid for those with body mass index (BMI) >37 kg/m2 . Our objective was to determine the association between TBS and lumbar spine (trabecular) volumetric BMD (LS-VBMD) and to examine whether the association varied by BMI and body composition among older men below this clinical threshold. We used regression models to study 3479 men age ≥65 years enrolled in the Osteoporotic Fractures in Men (MrOS) study who had TBS from spine DXA scans, LS-VBMD from central quantitative computed tomography, measures of trunk fat and lean mass from DXA, and BMI <37 kg/m2 . TBS was categorized as normal (n = 925), partially degraded (n = 1747), and degraded (n = 807). TBS was inversely related to BMI, trunk fat mass, and trunk lean mass (all p < 0.001). The relationship between TBS and LS-VBMD was nonlinear with magnitude of effect (slope of regression line using standardized variables) ranging from 0.07 (95% CI, -0.02 to 0.15) among those with degraded TBS up to 0.71 (95% CI, 0.54 to 0.89) among those with normal TBS. The relationship was still nonlinear after adjusting for age, clinical site, and either BMI, trunk lean mass, or trunk fat mass. The magnitude of effect relating TBS and LS-VBMD also decreased with increasing BMI (interaction, p = 0.090) and increasing trunk lean mass (interaction, p = 0.001), but not with increasing trunk fat mass (interaction, p = 0.224). In summary, the strength of the association between TBS and LS-VBMD among older men was variable and dependent on BMI and body composition, particularly trunk lean mass. The clinical utility of TBS among older men may be somewhat limited among men with high BMI or high trunk lean mass. © 2016 American Society for Bone and Mineral Research.
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Affiliation(s)
- Lisa Langsetmo
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA.
| | - Tien N Vo
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA
| | - Kristine E Ensrud
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA.,Department of Medicine, University of Minnesota, Minneapolis, MN, USA.,Center for Chronic Disease Outcomes Research, Minneapolis VA Health Care System, Minneapolis, MN, USA
| | - Brent C Taylor
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA.,Department of Medicine, University of Minnesota, Minneapolis, MN, USA.,Center for Chronic Disease Outcomes Research, Minneapolis VA Health Care System, Minneapolis, MN, USA
| | - Peggy M Cawthon
- California Pacific Medical Center Research Institute, San Francisco, CA, USA.,Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA, USA
| | - Ann V Schwartz
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA, USA
| | - Douglas C Bauer
- 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
| | - Eric S Orwoll
- Bone and Mineral Unit, Oregon Health Sciences University, Portland, OR, USA
| | - Nancy E Lane
- Department of Medicine, University of California, Davis, Davis, CA, USA.,Department of Rheumatology, University of California, Davis, Davis, CA, USA
| | - Elizabeth Barrett-Connor
- Department of Family Medicine and Public Health, University of California, San Diego, La Jolla, CA, USA
| | - John T Schousboe
- HealthPartners Institute, HealthPartners, Minneapolis, MN, USA.,Division of Health Policy and Management, University of Minnesota, Minneapolis, MN, USA
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