Bone最新文献

{"title":"Age-dependent musculoskeletal changes during mechanical unloading with bisphosphonate treatment.","authors":"Sophie Orr, Natalie K Gilmore, Suraj Pathak, Hodo Ali Edan, Henning Langer, Keith Baar, Blaine A Christiansen","doi":"10.1016/j.bone.2026.117924","DOIUrl":"https://doi.org/10.1016/j.bone.2026.117924","url":null,"abstract":"<p><p>Mechanical unloading (disuse) leads to reductions in bone and muscle mass. Bone and muscle adaptation are often studied together in terms of mechanical stimulus, but non-mechanical (biological) crosstalk during periods of disuse and how this is affected by age and bone-preserving pharmaceuticals has not been assessed. This study aimed to determine how mechanical unloading and concurrent bisphosphonate treatment affect bone and muscle structure and function in young, middle-aged, and old mice. We hypothesized that unloading would cause bone loss in untreated mice, but bisphosphonate treatment would prevent this loss. Additionally, we expected that unloading would result in muscle atrophy and reduced contraction force, but we hypothesized that these reductions would be partially mitigated by bisphosphonate treatment due to decreased release of osteokines, and that this mitigation would decrease with age. To investigate these hypotheses, young (3-mo, n = 40), middle-aged (12-mo, n = 40), and old (20-m, n = 40) male C57BL/6 J mice received biweekly subcutaneous bisphosphonate injections (0.03 mg alendronate/mouse) or vehicle injections starting one week before unloading. Mice underwent hindlimb unloading (HLU) via tail suspension for 14 days. Maximum force production of the hind limb was measured after 14 days of unloading. Femurs were imaged with micro-computed tomography (μCT 35, SCANCO Medical AG); cortical bone was analyzed at the mid-diaphysis, and trabecular bone was analyzed at the distal femur to determine bone microstructural outcomes. Muscle fiber cross-sectional area (CSA) and fiber type were analyzed via IHC. Muscle myostatin and serum TGF-β1 levels were measured via ELISA. Achilles tendon mechanical properties were also assessed using tensile testing. We found that HLU decreased the mass of the triceps surae muscles, and this loss was not recovered during bisphosphonate treatment. Muscle mass in old mice decreased during HLU with bisphosphate treatment. Maximum hindlimb force production and respective force to muscle mass ratio differed between all age groups and did not correlate with bone or muscle changes. Muscle myostatin concentrations increased with age (p = 0.040), bisphosphonate treatment (p = 0.003), and unloading (p = 0.002), as well as due to the interaction of treatment and unloading (p = 0.0239). Serum levels of TGF-β1 increased with age (p < 0.0001) and unloading (p = 0.012), as well as with interactions between both age and treatment (p = 0.006) and age and unloading (p = 0.013). Age impacted muscle, tendon, and bone responses to unloading and/or bisphosphonate treatment. Bone and muscle adaptation to unloading are different across the lifespan, as are the effects of bisphosphonate treatment. Characterizing these changes is essential for understanding clinical outcomes related to periods of disuse and clinical bone and muscle preserving treatments during bedrest, immobilization, or even spaceflight across different a","PeriodicalId":93913,"journal":{"name":"Bone","volume":" ","pages":"117924"},"PeriodicalIF":3.6,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147857968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Renal osteodystrophy in pediatric patients. A systematic review and meta-analysis.","authors":"Leonardo Gonçalves Bedram, Maria Eugênia F Canziani, Amandha Luysa Martins Leal Bittencourt, Marcos Messias, Ana Claudia Morais Godoy Figueiredo, Maria Cristina Andrade, Aluizio Barbosa Carvalho","doi":"10.1016/j.bone.2026.117921","DOIUrl":"https://doi.org/10.1016/j.bone.2026.117921","url":null,"abstract":"<p><p>Chronic kidney disease (CKD) in children is associated with significant comorbidities, including mineral and bone disorder (CKD-MBD). A key manifestation of CKD-MBD is renal osteodystrophy (ROD), diagnosed by bone biopsy followed by histomorphometric analysis. In pediatric patients, ROD can lead to bone deformities and impaired growth. However, the limited use of bone biopsy in this population hampers the understanding of ROD patterns and severity. This systematic review and meta-analysis aimed to evaluate histomorphometric findings in children with CKD. We screened 5082 abstracts published up to 2024 and included 28 eligible studies, encompassing 980 bone biopsies from children in different stages of CKD. Significant heterogeneity in nomenclature, abbreviations, and reference units of histomorphometric parameters was observed, despite the ASBMR recommendations. Osteitis fibrosa was the most prevalent type of ROD. Notably, 36% of the studies did not report dynamic parameters. Meta-analyses revealed substantial variability in both histomorphometric and biochemical measures. Meta-regression identified study design, age, sex, and CKD treatment modality as key contributors to heterogeneity in bone structure, formation, and resorption parameters. In conclusion, most children with CKD exhibit some form of ROD. Standardized biopsy protocols and normative histomorphometric references stratified by age and sex are needed to enhance result interpretation and comparability across future studies.</p>","PeriodicalId":93913,"journal":{"name":"Bone","volume":" ","pages":"117921"},"PeriodicalIF":3.6,"publicationDate":"2026-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147847447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Letter to the editor concerning 'Impact of diabetes on the risk of subsequent fractures in 92,600 patients with an incident hip fracture: A Danish nationwide cohort study 2004-2018'.","authors":"Junqing Miao, Xiaole Kong, Jingzhi Wang","doi":"10.1016/j.bone.2024.117124","DOIUrl":"https://doi.org/10.1016/j.bone.2024.117124","url":null,"abstract":"","PeriodicalId":93913,"journal":{"name":"Bone","volume":"38 23","pages":"117124"},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141045049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Swim training induces distinct osseous gene expression pattern in anosteocytic and osteocytic teleost fish.","authors":"Josephine T Tauer, Tobias Thiele, Catherine Julien, Lior Ofer, P. Zaslansky, Ron Shahar, Bettina M. Willie","doi":"10.1016/j.bone.2024.117125","DOIUrl":"https://doi.org/10.1016/j.bone.2024.117125","url":null,"abstract":"","PeriodicalId":93913,"journal":{"name":"Bone","volume":"210 S650","pages":"117125"},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141040215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effects of synbiotics-glyconutrients on growth performance, nutrient digestibility, gas emission, meat quality, and fatty acid profile of finishing pigs.","authors":"Olivier Munezero, Sungbo Cho, In Ho Kim","doi":"10.5187/jast.2023.e52","DOIUrl":"10.5187/jast.2023.e52","url":null,"abstract":"<p><p>Glyconutrients help in the body's cell communication. Glyconutrients and synbiotics are promising options for improving immune function. Therefore, we hypothesized that combining synbiotics and glyconutrients will enhance pig nutrient utilization. 150 pigs (Landrace × Yorkshire × Duroc), initially weighing 58.85 ± 3.30 kg of live body weight (BW) were utilized to determine the effects of synbiotics-glyconutrients (SGN) on the pigs' performance, feed efficiency, gas emission, pork traits, and composition of fatty acids. The pigs were matched by BW and sex and chosen at random to 1 of 3 diet treatments: control = Basal diet; TRT1 = Basal diet + SGN 0.15%; TRT2 = Basal diet + SGN 0.30%%. The trials were conducted in two phases (weeks 1-5 and weeks 5-10). The average daily gain was increased in pigs fed a basal diet with SGN (<i>p</i> = 0.036) in weeks 5-10. However, the apparent total tract digestibility of dry matter, nitrogen, and gross energy did not differ among the treatments (<i>p</i> > 0.05). Dietary treatments had no effect on NH₃, H₂S, methyl mercaptans, acetic acids, and CO₂ emissions (<i>p</i> > 0.05). Improvement in drip loss on day 7 (<i>p</i> = 0.053) and tendency in the cooking loss were observed (<i>p</i> = 0.070) in a group fed basal diets and SGN at 0.30% inclusion level. The group supplemented with 0.30% of SGN had higher levels of palmitoleic acid (C16:1), margaric acid (C17:0), omega-3 fatty acid, omega-6 fatty acid, and ω-6: ω-3 ratio (<i>p</i> = 0.034, 0.020, 0.025, 0.007, and 0.003, respectively) in the fat of finishing pigs. Furthermore, group supplemented with 0.30% of SGN improved margaric acid (C17:0), linoleic acid (C18:2n6c), arachidic acid (C20:0), omega 6 fatty acid, omega-6 to omega-3 ratio, unsaturated fatty acid, and monounsaturated fatty acid (p = 0.037, 0.05, 0.0142, 0.036, 0.033, 0.020, and 0.045, respectively) in the lean tissues of finishing pigs compared to pigs fed with the control diets. In conclusion, the combination of probiotics, prebiotics, and glyconutrients led to higher average daily gain, improved the quality of pork, and more favorable fatty acid composition. Therefore, these results contributed to a better understanding of the potential of SGN combinations as a feed additive for pigs.</p>","PeriodicalId":93913,"journal":{"name":"Bone","volume":"29 1","pages":"310-325"},"PeriodicalIF":2.3,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11016742/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78886618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"TNF-α promotes osteocyte necroptosis by upregulating TLR4 in postmenopausal osteoporosis","authors":"Hongwang Cui, Ji Li, Xiangtao Li, Tian Su, Peng Wen, Chuanling Wang, Xiaozhong Deng, Yonghua Fu, Weijie Zhao, Changjia Li, Pengbing Hua, Yongjun Zhu, Wei Wan","doi":"10.1016/j.bone.2024.117050","DOIUrl":"https://doi.org/10.1016/j.bone.2024.117050","url":null,"abstract":"","PeriodicalId":93913,"journal":{"name":"Bone","volume":"878 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139831347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bone intrinsic material and compositional properties in postmenopausal women diagnosed with long-term Type-1 diabetes.","authors":"W. Qian, S. Gamsjaeger, E. Paschalis, Laura A Graeff-Armas, S. Bare, J. Turner, J. Lappe, R. Recker, M. Akhter","doi":"10.2139/ssrn.4328036","DOIUrl":"https://doi.org/10.2139/ssrn.4328036","url":null,"abstract":"The incidence of diabetes mellitus and the associated complications are growing worldwide, affecting the patients' quality of life and exerting a considerable burden on health systems. Yet, the increase in fracture risk in type 1 diabetes (T1D) patients is not fully captured by bone mineral density (BMD), leading to the hypothesis that alterations in bone quality are responsible for the increased risk. Material/compositional properties are important aspects of bone quality, yet information on human bone material/compositional properties in T1D is rather sparse. The purpose of the present study is to measure both the intrinsic material behaviour by nanoindentation, and material compositional properties by Raman spectroscopy as a function of tissue age and microanatomical location (cement lines) in bone tissue from iliac crest biopsies from postmenopausal women diagnosed with long-term T1D (N = 8), and appropriate sex-, age-, BMD- and clinically-matched controls (postmenopausal women; N = 5). The results suggest elevation of advanced glycation endproducts (AGE) content in the T1D and show significant differences in mineral maturity / crystallinity (MMC) and glycosaminoglycan (GAG) content between the T1D and control groups. Furthermore, both hardness and modulus by nanoindentation are greater in T1D. These data suggest a significant deterioration of material strength properties (toughness) and compositional properties in T1D compared with controls.","PeriodicalId":93913,"journal":{"name":"Bone","volume":"1 1","pages":"116832"},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45367411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pediatric reference values of alkaline phosphatase: Analysis from a German population-based cohort and influence of anthropometric and blood parameters.","authors":"Jacqueline-Michéle Strauch, M. Vogel, C. Meigen, U. Ceglarek, J. Kratzsch, A. Willenberg, W. Kiess","doi":"10.2139/ssrn.4358797","DOIUrl":"https://doi.org/10.2139/ssrn.4358797","url":null,"abstract":"BACKGROUND\u0000Due to different growth and metabolic processes, reference values of alkaline phosphatase (AP) for children aged 3 month to 18 years are dependent on age and sex. They are not constant and differ from those of adults due to the growth processes taking place. Accordingly, reference levels of AP continuous across these ages were generated for boys and girls based on of a large German health- and population-based study, LIFE Child. We considered AP at different growth and Tanner stages and additionally its association with other anthropometric parameters. The association between AP and BMI was of particulary great interest due to controversial literature on this topic. The role of AP in liver metabolism was investigated by examining ALAT, ASAT, and GGT.\u0000\u0000\u0000METHODS\u00003976 healthy children (12,093 visits) were included from the LIFE Child study from 2011 to 2020. The subjects´ age ranged from 3 months to 18 years. Serum samples from 3704 subjects (10,272 cases, 1952 boys and 1753 girls) were analysed for AP after applying specific exclusion criteria. After calculating of reference percentiles, associations between AP and height-SDS, growth velocity, BMI-SDS, Tanner stage and the liver enzymes ALAT, ASAT and GGT were examined via linear regression models.\u0000\u0000\u0000RESULTS\u0000In the continuous reference levels, AP showed a first peak during the first year of life, followed by a plateau at a lower level until the start of puberty. In girls, AP increased beginning at the age 8, with a peak around 11 years, in boys beginning at the age 9, with a peak around age 13. Afterwards, AP values decreased continuously until age 18. In Tanner stages 1 and 2, AP levels did not differ between the two sexes. We found a strong positive association between AP-SDS and BMI-SDS. We also observed a significantly positive association between AP-SDS and height-SDS, which was stronger in boys than in girls. We found different intensities in the associations of AP with growth velocity depending on age group and sex. Furthermore, we found a significantly positive association between ALAT and AP in girls but not in boys, whereas ASAT-SDS and GGT-SDS were significantly positively associated with AP-SDS in both sexes.\u0000\u0000\u0000CONCLUSION\u0000Sex and age, but also BMI may act as confounding factors for AP reference ranges. Our data confirm the remarkable association between AP and growth velocity (or height-SDS, respectively) during infancy and puberty. In addition, we were able to specify the associations between AP and ALAT, ASAT, and GGT and their differences in both sexes. These relations should be considered when evaluating liver and bone metabolism markers, especially in infancy.","PeriodicalId":93913,"journal":{"name":"Bone","volume":"1 1","pages":"116809"},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41642183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Muscle strength and physical performance contribute to and improve fracture risk prediction in older people: A narrative review.","authors":"Dima A Alajlouni, D. Bliuc, Thach Tran, R. Blank, J. Center","doi":"10.2139/ssrn.4281657","DOIUrl":"https://doi.org/10.2139/ssrn.4281657","url":null,"abstract":"Osteoporotic fractures present a major health problem with an increasing prevalence in older people. Fractures are associated with premature mortality, reduced quality of life, subsequent fracture, and increased costs. Hence, it is crucial to identify those at higher risk of fracture. Fracture risk assessment tools incorporated clinical risk factors to improve fracture predictive power over BMD alone. However, fracture risk prediction using these algorithms remains suboptimal, warranting further improvement. Muscle strength and physical performance measurements have been associated with fracture risk. In contrast, the contribution of sarcopenia, the composite condition of low muscle mass, muscle strength and/or physical performance, to fracture risk is unclear. It is uncertain whether this is due to the problematic definition of sarcopenia per se or limitations of the diagnostic tools and cut-off points of the muscle mass component. The recent position statement from the Sarcopenia Definition and Outcomes Consortium confirmed the inclusion of muscle strength and performance in the definition of sarcopenia but not DXA-assessed lean mass. Therefore, clinicians should focus on functional assessment (muscle strength and performance) rather than muscle mass, at least as assessed by DXA, as predictors of fractures. Muscle strength and performance are modifiable risk factors. Resistance exercise improves muscle parameters in the elderly, potentially leading to reduced risk of falls and fractures in the general population and in those who sustained a fracture. Therapists may consider exercise intervention to improve muscle parameters and potentially reduce the risk of fractures. The aim of this review was to explore 1) the contribution of muscle parameters (i.e., muscle mass, strength, and physical performance) to fracture risk in older adults, and 2) the added predictive accuracy of these parameters beyond the existing fracture assessment tools. These topics provide the rationale for investigating strength and physical performance interventions to reduce fracture risk. Most of the included publications showed that muscle mass is not a good predictor of fracture risk, while poor muscle strength and performance are associated with an increased risk of fracture, particularly in men, independent of age, BMD, and other risk factors for fractures. Muscle strength and performance can potentially improve the predictive accuracy in men beyond that obtained by the fracture risk assessment tools, Garvan FRC and FRAX.","PeriodicalId":93913,"journal":{"name":"Bone","volume":"1 1","pages":"116755"},"PeriodicalIF":0.0,"publicationDate":"2023-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49058704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The influence of diet and physical activity on bone density of children aged 5-7 years: The Belfast HAPO family study.","authors":"C. Casey, B. Kemp, L. Cassidy, Chris Patterson, M. Tully, A. Hill, D. McCance","doi":"10.2139/ssrn.4328034","DOIUrl":"https://doi.org/10.2139/ssrn.4328034","url":null,"abstract":"OBJECTIVE\u0000Osteoporosis is a global health issue, and modifiable behavioural factors need to be identified in childhood to reduce the risk of osteoporosis in later life. The aim of this study was to investigate the influence of diet and physical activity on bone density of children aged 5-7 years participating in the Belfast Hyperglycaemia and Adverse Pregnancy Outcome (HAPO) Family study.\u0000\u0000\u0000DESIGN AND METHODS\u0000Pregnant women were recruited to the Belfast centre of the HAPO study at 24-32 weeks gestation. Offspring were followed up at 5-7 years as part of the Belfast HAPO Family Study. Heel bone mineral density (BMD) and bone mineral apparent density (BMAD) were measured and calculated, respectively. Physical activity in the offspring was measured by accelerometery and dietary intakes were measured using a 4-day food diary.\u0000\u0000\u0000RESULTS\u0000Results from 793 offspring were analysed. Mean age of the offspring ± standard deviation was 6.4 ± 0.5 years. A mean of 48.3 ± 22.4 min each day was spent in moderate to vigorous physical activity (MVPA). Median (interquartile range) dietary calcium and vitamin D intakes were 844 (662-1073) mg/day and 1.7 (1.1-2.5) μg/day, respectively. Neither dietary vitamin D nor calcium intakes were significantly associated with offspring heel BMD or BMAD in multiple regression. However, controlling for confounders, a 30-min greater MVPA was associated with significantly larger heel BMD (0.018 g/cm2 in boys and 0.010 g/cm2 in girls) and BMAD (0.005 g/cm3 in boys and 0.003 g/cm3 in girls).\u0000\u0000\u0000CONCLUSION\u0000Physical activity was associated with better BMD and BMAD in 5-7-year-old children. Dietary calcium and vitamin D were not predictive of BMD and BMAD.","PeriodicalId":93913,"journal":{"name":"Bone","volume":"1 1","pages":"116783"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45127271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}