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Calcified Tissue International

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https://www.readbyqxmd.com/read/29352329/the-advantages-of-bilateral-osteotomy-over-unilateral-osteotomy-for-osteoporotic-bone-healing
#1
M Komrakova, J Fiebig, D B Hoffmann, C Krischek, W Lehmann, K M Stuermer, S Sehmisch
Most models of osteoporotic bone fractures are performed unilaterally (UL). We investigated healing of tibia osteotomy performed either UL or bilaterally (BL) in ovariectomized rats. Behavior of animals and muscle structure were assessed. Three-month-old female Sprague-Dawley rats were ovariectomized (n = 32). After 10 weeks, half the rats underwent UL osteotomy of tibia metaphysis (right limb) with plate osteosynthesis. The other rats were osteotomized BL. Half of the rats in each group received either standard pain treatment with carprofen (5 mg/kg body weight (BW), 1x/day for 2 days) or carprofen and buprenorphine (5 mg/kg BW, 1x/day and 0...
January 19, 2018: Calcified Tissue International
https://www.readbyqxmd.com/read/29340743/recent-trends-and-advances-in-cancer-induced-bone-disease
#2
EDITORIAL
Aymen I Idris
No abstract text is available yet for this article.
January 16, 2018: Calcified Tissue International
https://www.readbyqxmd.com/read/29332162/roles-of-irisin-in-the-linkage-from-muscle-to-bone-during-mechanical-unloading-in-mice
#3
Naoyuki Kawao, Akihiro Moritake, Kohei Tatsumi, Hiroshi Kaji
Mechanical unloading induces disuse muscle atrophy and bone loss, but the details in mechanism involved in those pathophysiological conditions are not fully understood. Interaction between muscle and bone has been recently noted. Here, we investigated the roles of humoral factors linking muscle to bone during mechanical unloading using mice with hindlimb unloading (HU) and sciatic neurectomy (SNX). HU and SNX reduced muscle volume surrounding the tibia, tissue weights of soleus and gastrocnemius muscle, and trabecular bone mineral density (BMD) in the tibia of mice...
January 13, 2018: Calcified Tissue International
https://www.readbyqxmd.com/read/29330560/altered-bone-remodeling-in-psoriatic-disease-new-insights-and-future-directions
#4
REVIEW
Ananta Paine, Christopher Ritchlin
Psoriatic arthritis (PsA) is an inflammatory rheumatic disorder that occurs in patients with psoriasis and predominantly affects musculoskeletal structures, skin, and nails. The etiology of PsA is not well understood but evidence supports an interplay of genetic, immunologic, and environmental factors which promote pathological bone remodeling and joint damage in PsA. Localized and systemic bone loss due to increased activity of osteoclasts is well established in PsA based on animal models and translational studies...
January 12, 2018: Calcified Tissue International
https://www.readbyqxmd.com/read/29327231/loading-of-the-condylar-cartilage-can-rescue-the-effects-of-botox-on-tmj
#5
Eliane H Dutra, Mara H O'Brien, Candice Logan, Aditya Tadinada, Ravindra Nanda, Sumit Yadav
The purpose of this study is to evaluate whether the effects of botulinum neurotoxin (botox) injection into the masseter in the mandibular condylar cartilage (MCC) and subchondral bone could be rescued by compressive loading of the temporomandibular joint (TMJ). Twenty-four 6-week-old female mice (C57BL/6J) were used. Mice were divided in three groups: (1) Botox (n = 8); (2) Botox plus loading (n = 8); (3) Pure control (n = 8). Bone labels (3 and 1 day before sacrifice) and the proliferation marker EdU (2 and 1 day before sacrifice) were intraperitoneally injected into all groups of mice...
January 11, 2018: Calcified Tissue International
https://www.readbyqxmd.com/read/29318330/multiple-vertebral-osteonecroses-k%C3%A1-mmell-s-disease-after-10-years-on-denosumab-is-osteocyte-apoptosis-to-blame-more-evidence-needed
#6
LETTER
Federica Biamonte, Sudhaker D Rao, Cristiana Cipriani, Jessica Pepe, Piergianni Biondi, Salvatore Minisola
No abstract text is available yet for this article.
January 9, 2018: Calcified Tissue International
https://www.readbyqxmd.com/read/29313071/glucocorticoids-inflammation-and-bone
#7
REVIEW
Melek Güler-Yüksel, Jos N Hoes, Irene E M Bultink, Willem F Lems
The current review on glucocorticoids (GCs), inflammation and bone is focused on three aspects: (1) the mutual effects between GCs, inflammation and bone in inflammatory rheumatic diseases, (2) current views on fracture risk assessment in patients using GCs and (3) non-pharmacological and pharmacological treatment to prevent fractures in GC-using patients with inflammatory rheumatic diseases. The use of GCs results in increased risk for fractures due to both direct and indirect negative effects of GCs on bone mass, and on bone and muscle strength...
January 8, 2018: Calcified Tissue International
https://www.readbyqxmd.com/read/29305636/lower-lean-mass-measured-by-dual-energy-x-ray-absorptiometry-dxa-is-not-associated-with-increased-risk-of-hip-fracture-in-women-the-framingham-osteoporosis-study
#8
Robert R McLean, Douglas P Kiel, Sarah D Berry, Kerry E Broe, Xiaochun Zhang, L Adrienne Cupples, Marian T Hannan
Although muscle mass influences strength in older adults, it is unclear whether low lean mass measured by dual-energy X-ray absorptiometry (DXA) is an independent risk factor for hip fracture. Our objective was to determine the association between DXA lean mass and incident hip fracture risk among 1978 women aged 50 years and older participating in the Framingham Study Original and Offspring cohorts. Leg and total body lean mass (kg) were assessed from whole-body DXA scans collected in 1992-2001. Hip fracture follow-up extended from DXA assessment to the occurrence of fracture, death, drop-out, or end of follow-up in 2007...
January 5, 2018: Calcified Tissue International
https://www.readbyqxmd.com/read/29302709/sports-participation-in-high-school-and-college-leads-to-high-bone-density-and-greater-rates-of-bone-loss-in-young-men-results-from-a-population-based-study
#9
Maggie M Minett, Lee Weidauer, Howard E Wey, Teresa L Binkley, Tianna M Beare, Bonny L Specker
Estimated lifetime risk of an osteoporotic fracture in men over the age of 50 years is substantial and lifestyle factors such as physical activity may explain variation in bone mass and bone loss associated with aging. Men (n = 253) aged 20-66 years were followed for 7.5 years and factors that influence changes in means and rates of change in bone mass, density, and size using dual-energy X-ray absorptiometry (DXA) and peripheral quantitative computed tomography (pQCT) were investigated; in particular, seasons of sports participation during high school and college...
January 4, 2018: Calcified Tissue International
https://www.readbyqxmd.com/read/29294148/high-serum-retinol-as-a-relevant-contributor-to-low-bone-mineral-density-in-postmenopausal-osteoporotic-women
#10
Cristina Navarro-Valverde, Javier Caballero-Villarraso, José M Mata-Granados, Antonio Casado-Díaz, Manuel Sosa-Henríquez, Jorge Malouf-Sierra, Xavier Nogués-Solán, Leocadio Rodríguez-Mañas, Xavier Cortés-Gil, Joaquín Delgadillo-Duarte, José Manuel Quesada-Gómez
There is controversial information about the impact of vitamin A on bone. Some epidemiological studies show that excessive intake of vitamin A, or an excess of serum vitamin A, has related with adverse impact on bone mass; however, other studies did not find these links, and some authors have proposed that this vitamin might promote a better bone health. The present work aims to contribute to clarify the real role of vitamin A in bone tissue. For this purpose, a cross-sectional study of 154 osteoporotic non-treated postmenopausal women (> 65 years old) was carried out...
January 2, 2018: Calcified Tissue International
https://www.readbyqxmd.com/read/29290007/bone-geometry-quality-and-bone-markers-in-children-with-type-1-diabetes-mellitus
#11
Roberto Franceschi, Silvia Longhi, Vittoria Cauvin, Angelo Fassio, Giuseppe Gallo, Fiorenzo Lupi, Petra Reinstadler, Antonio Fanolla, Davide Gatti, Giorgio Radetti
Adults with Type 1 diabetes mellitus show a high risk of bone fracture, probably as a consequence of a decreased bone mass and microarchitectural bone alterations. The aim of the study was to investigate the potential negative effects of type 1 diabetes on bone geometry, quality, and bone markers in a group of children and adolescents. 96 children, mean age 10.5 ± 3.1 years, agreed to participate to the study. Bone geometry was evaluated on digitalized X-rays at the level of the 2nd metacarpal bone. The following parameters were investigated and expressed as SDS: outer diameter (D), inner diameter (d), cortical area (CA), and medullary area (MA)...
December 30, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/29285549/geography-of-fracture-incidence-in-postmenopausal-women-with-osteoporosis-treated-with-abaloparatide
#12
Michael R McClung, Gregory C Williams, Gary Hattersley, Lorraine A Fitzpatrick, Yamei Wang, Paul D Miller
Geographic heterogeneity has been observed in fracture risk and efficacy of therapeutic intervention in postmenopausal osteoporosis. The objectives of these analyses were to assess across geographic and ethnic subgroups the heterogeneity of fracture incidence and baseline risk, and consistency of effect of abaloparatide-SC vs placebo on fracture risk reduction in the 18-month, phase 3, multinational, ACTIVE randomized controlled trial. Prespecified exploratory analyses of geographic subgroups (North America, South America, Europe, Asia) and post hoc analyses of ethnic subgroups (Hispanic or Latino, other) of postmenopausal women with osteoporosis enrolled in the abaloparatide-SC and placebo cohorts (n = 1645) were performed...
December 28, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/29249023/cortical-fractal-analysis-and-collagen-crosslinks-content-in-femoral-neck-after-osteoporotic-fracture-in-postmenopausal-women-comparison-with-osteoarthritis
#13
Gustavo Davi Rabelo, Jean-Paul Roux, Nathalie Portero-Muzy, Evelyne Gineyts, Roland Chapurlat, Pascale Chavassieux
The femoral neck (FN) has been previously characterized by thinner cortices in osteoporotic fracture (HF) when compared to hip osteoarthritis (HOA). The purposes of this study were to complete the previous investigations on FNs from HF and HOA by analyzing the complexity of the cortical structure and to approach the intrinsic properties of cortical bone by assessing the collagen crosslink contents. FN samples were obtained during arthroplasty in 35 postmenopausal women (HF; n = 17; mean age 79 ± 2 years; HOA; n = 18; mean age 66 ± 2 years)...
December 16, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/29242963/effect-of-strontium-ranelate-on-the-muscle-and-vertebrae-of-ovariectomized-rats
#14
D Saul, B Harlas, A Ahrabi, R L Kosinsky, D B Hoffmann, M Wassmann, R Wigger, K O Böker, S Sehmisch, M Komrakova
Osteoporosis is often accompanied by sarcopenia. The effect of strontium ranelate (SR) on muscle tissue has not been investigated sufficiently. In this study, the effect of different SR treatments on muscle was studied. Additionally, the lumbar vertebrae were analyzed. Three-month-old female rats were divided into five groups (n = 12): Group 1: untreated (NON-OVX); Group 2: ovariectomized and left untreated (OVX); Group 3: SR after OVX until the study ended (13 weeks, SR prophylaxis and therapy = pr+th); Group 4: OVX and SR for 8 weeks (SR prophylaxis = pr); Group 5: SR for 5 weeks from the 8 week after OVX (SR therapy = SR th)...
December 14, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/29238848/biology-of-bone-sarcomas-and-new-therapeutic-developments
#15
REVIEW
Hannah K Brown, Kristina Schiavone, François Gouin, Marie-Françoise Heymann, Dominique Heymann
Bone sarcomas are tumours belonging to the family of mesenchymal tumours and constitute a highly heterogeneous tumour group. The three main bone sarcomas are osteosarcoma, Ewing sarcoma and chondrosarcoma each subdivided in diverse histological entities. They are clinically characterised by a relatively high morbidity and mortality, especially in children and adolescents. Although these tumours are histologically, molecularly and genetically heterogeneous, they share a common involvement of the local microenvironment in their pathogenesis...
December 13, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/29222689/long-term-quantitative-evaluation-of-muscle-and-bone-wasting-induced-by-botulinum-toxin-in-mice-using-microcomputed-tomography
#16
Hélène Libouban, Claude Guintard, Nicolas Minier, Eric Aguado, Daniel Chappard
Muscle and bone masses are highly correlated and muscles impose large loads on bone. Muscle wasting that accompanies bone loss has been poorly investigated. 21 female mice were spread into seven groups. At day 0, 18 mice received Botulinum toxin (BTX) injection in the quadriceps muscle to induce paralysis of the right hind limb; the left contralateral side was used as control. Mice were sacrificed at 7, 14, 21, 28, 56 and 90 days post-injection. A remaining group was sacrificed at day 0. Trabecular bone volume was determined by microcomputed tomography (microCT) at the distal femur and tibia proximal metaphyses on both sides...
December 8, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/29214457/gut-microbiota-and-host-juvenile-growth
#17
REVIEW
Martin Schwarzer, Maura Strigini, François Leulier
Good genes, good food, good friends. That is what parents hope will sustain and nurture the harmonious growth of their children. The impact of the genetic background and nutrition on postnatal growth has been in the spot light for long, but the good friends have come to the scene only recently. Among the good friends perhaps the most crucial ones are those that we are carrying within ourselves. They comprise the trillions of microbes that collectively constitute each individual's intestinal microbiota. Indeed, recent epidemiological and field studies in humans, supported by extensive experimental data on animal models, demonstrate a clear role of the intestinal microbiota on their host's juvenile growth, especially under suboptimal nutrient conditions...
December 6, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/29204673/the-role-of-autoantibodies-in-bone-metabolism-and-bone-loss
#18
REVIEW
Barbara Hauser, Ulrike Harre
Many autoimmune diseases are associated with deranged bone metabolism. The resulting localized or systemic bone loss can compromise the quality of life of patients by causing local bone deformities or fragility fractures. There is emerging evidence that antibodies have a direct impact on key players of bone homeostasis, in particular osteoclasts. Clinical and pre-clinical studies provide insight into the function of autoantibodies related to Rheumatoid Arthritis (rheumatoid factor, anti-citrullinated protein antibodies, and anti-carbamylated protein antibodies) and their inflammation-independent interaction with bone cells...
December 4, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/29204672/bone-loss-in-rheumatoid-arthritis-basic-mechanisms-and-clinical-implications
#19
REVIEW
Jae-Hyuck Shim, Zheni Stavre, Ellen M Gravallese
Patients with rheumatoid arthritis (RA) have historically developed progressive damage of articular bone and cartilage, which correlates with disability over time. In addition, these patients are prone to periarticular and systemic bone loss, carrying additional morbidity. In contrast to what is seen in many other rheumatic diseases, the impact of inflammation on bone in RA is uniquely destructive. Loss of articular bone (erosions) and periarticular bone (demineralization) is a result of excessive bone resorption and markedly limited bone formation...
December 4, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/29196931/metabolic-syndrome-and-bone-pharmacologically-induced-diabetes-has-deleterious-effect-on-bone-in-growing-obese-rats
#20
Cedo M Bagi, Kristin Edwards, Edwin Berryman
Metabolic syndrome and osteoporosis share similar risk factors. Also, patients with diabetes have a higher risk of osteoporosis and fracture. Liver manifestations, such as non-alcoholic steatohepatitis (NASH), of metabolic syndrome are further aggravated in diabetics and often lead to liver failure. Our objective was to create a rat model of human metabolic syndrome and determine the long-term impact of early-onset T1D on bone structure and strength in obese growing rats. Male rats were given either standard chow and RO water (Controls) or a high-fat, high-cholesterol diet and sugar water containing 55% fructose and 45% glucose (HFD)...
December 1, 2017: Calcified Tissue International
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