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Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research

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https://www.readbyqxmd.com/read/28722766/comparative-analysis-of-the-radiology-of-osteoporotic-vertebral-fractures-in-women-and-men-cross-sectional-and-longitudinal-observations-from-the-canadian-multicentre-osteoporosis-study-camos
#1
Brian C Lentle, Claudie Berger, Linda Probyn, Jacques P Brown, Lisa Langsetmo, Ben Fine, Kevin Lian, Arvind K Shergill, Jacques Trollip, Stuart Jackson, William D Leslie, Jerilynn C Prior, Stephanie M Kaiser, David A Hanley, Jonathan D Adachi, Tanveer Towheed, K Shawn Davison, Angela M Cheung, David Goltzman
We compared two methods for osteoporotic vertebral fracture (VF) assessment on lateral spine radiographs, the Genant semi-quantitative (GSQ) technique and a modified algorithm-based qualitative (mABQ) approach. We evaluated 4465 women and 1771 men > 50 years old from the Canadian Multicentre Osteoporosis Study with available X-ray images at baseline. Observer agreement was lowest for grade 1 VFs determined by GSQ. Among physician readers, agreement was greater for VFs diagnosed by mABQ [ranging from 0...
July 19, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28722129/bone-strength-estimated-by-micro-finite-element-analysis-%C3%A2%C2%B5fea-is-heritable-and-shares-genetic-predisposition-with-areal-bmd-the-framingham-study
#2
David Karasik, Serkalem Demissie, Darlene Lu, Kerry E Broe, Steven K Boyd, Ching-Ti Liu, Yi-Hsiang Hsu, Mary L Bouxsein, Douglas P Kiel
Genetic factors contribute to the risk of bone fractures, partly because of effects on bone strength. High-resolution peripheral quantitative computed tomography (HR-pQCT) estimates bone strength using micro-finite element analysis (µFEA). The goal of this study was to investigate if the bone failure load estimated by HR-pQCT-based µFEA is heritable and to what extent it shares genetic regulation with areal bone mineral density (aBMD). Bone microarchitecture was measured by HR-pQCT at the ultradistal tibia and ultradistal radius in adults from the Framingham Heart Study (n = 1087, mean age 72 years; 57% women)...
July 19, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28719727/the-ability-of-a-single-bmd-and-fracture-history-assessment-to-predict-fracture-over-25-years-in-postmenopausal-women-the-study-of-osteoporotic-fractures
#3
Dennis M Black, Jane A Cauley, Rachel Wagman, Kristine Ensrud, Howard A Fink, Teresa A Hillier, Li-Yung Lui, Steven R Cummings, John T Schousboe, Nicola Napoli
The ability of bone mineral density (BMD) and other risk factors to predict fracture risk is well-established for as long as 5 to 10 years. However, their value to predict risk over a longer term has not been directly studied. We investigated whether a single assessment of femoral neck BMD and fracture history can predict fracture risk over 20 to 25 years. We used data from the Study of Osteoporotic Fractures (SOF) that assessed BMD and risk factors in 7959 women age ≥67 (mean = 73.4) in 1988-1990. Follow-up for fractures continued for 25 years for hip fracture, and for 20 years for any nonvertebral fracture...
July 18, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28719143/osteoporotic-vertebral-fracture-prevalence-varies-widely-between-radiological-assessment-methods-the-rotterdam-study
#4
L Oei, F Koromani, S J Breda, J T Schousboe, E M Clark, Jbj van Meurs, M A Ikram, J H Waarsing, Fja van Rooij, M C Zillikens, G P Krestin, Ehg Oei, F Rivadeneira
BACKGROUND: Accurate diagnosis of vertebral osteoporotic fractures is crucial for the identification of individuals at high risk of future fractures. Different methods for radiological assessment of vertebral fractures exist, but a gold standard is lacking. The aim of our study was to estimate statistical measures of agreement and prevalence of osteoporotic vertebral fractures in the population-based Rotterdam Study, across the two most commonly applied assessment methods. METHODS: The quantitative morphometry (QM) method, evaluates vertebral height loss that affects vertebral shape whereas the algorithm based qualitative (ABQ) method judges endplate integrity and includes guidelines for the differentiation of vertebral fracture and non- fracture deformities...
July 18, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28718983/multimodality-image-guided-cryoablation-for-inoperable-tumor-induced-osteomalacia
#5
Sri Harsha Tella, Hayet Amalou, Bradford J Wood, Richard Chang, Clara C Chen, Cemre Robinson, Michelle Millwood, Guthrie Lori, Sheng Xu, Elliot Levy, Venkatesh Krishnasamy, Rachel I Gafni, Michael T Collins
Tumor-induced osteomalacia (TIO) is a debilitating paraneoplastic condition caused by small phosphaturic mesenchymal tumors (PMTs) that secrete large amounts of the phosphate- and vitamin D-regulating hormone, FGF23. Tumor removal results in cure. However, due to high perioperative comorbidity, either from tumor location or host factors, surgery is sometimes not an option. Tumor destruction via cryoablation may be an effective option for inoperable PMTs. Three subjects with a confirmed diagnosis of TIO were studied...
July 18, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28691759/mortality-after-osteoporotic-fractures-what-proportion-is-caused-by-fracture-and-is-preventable-a-commentary
#6
John T Schousboe
No abstract text is available yet for this article.
July 10, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28686309/absence-of-calcitriol-causes-increased-lactational-bone-loss-and-lower-milk-calcium-but-does-not-impair-post-lactation-bone-recovery-in-cyp27b1-null-mice
#7
Brittany R Gillies, Brittany A Ryan, Brett A Tonkin, Ingrid J Poulton, Yue Ma, Beth J Kirby, René St-Arnaud, Natalie A Sims, Christopher S Kovacs
We hypothesized that adaptation to calcium supply demands of pregnancy and lactation do not require calcitriol. Adult Cyp27b1 null mice lack calcitriol and have hypocalcemia, hypophosphatemia, and rickets. We studied wild-type (WT) and null sister pairs raised on a calcium, phosphorus and lactose-enriched "rescue" diet that prevents hypocalcemia and rickets. Bone mineral content (BMC) increased >30% in pregnant nulls, declined 30% during lactation, and increased 30% by 4 weeks post-weaning. WT showed less marked changes...
July 7, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28686306/adele-ludin-boskey-phd
#8
Adele Ludin Boskey
No abstract text is available yet for this article.
July 7, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28685886/longitudinal-adaptations-of-bone-mass-geometry-and-metabolism-in-adolescent-male-athletes-the-pro-bone-study
#9
Dimitris Vlachopoulos, Alan R Barker, Esther Ubago-Guisado, Ioannis G Fatouros, Karen M Knapp, Craig A Williams, Luis Gracia-Marco
Adolescence is a crucial period for bone development and exercise can enhance bone acquisition during this period of life. However, it is not known how the different loading sports practised can affect bone acquisition in adolescent male athletes. Therefore, the purpose of the present study was to determine the 1 year longitudinal bone acquisition among adolescent males involved in osteogenic (football) and non-osteogenic sports (swimming and cycling) and compared to active controls. 116 adolescent males aged 12-14 years at baseline were monitored 1 year: 37 swimmers, 37 footballers, 29 cyclists and 14 active controls...
July 7, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28678345/the-effect-of-intentional-weight-loss-on-fracture-risk-in-persons-with-diabetes-results-from-the-look-ahead-randomized-clinical-trial
#10
Karen C Johnson, George A Bray, Lawrence J Cheskin, Jeanne M Clark, Caitlin M Egan, John P Foreyt, Katelyn R Garcia, Stephen Glasser, Frank L Greenway, Edward W Gregg, Helen P Hazuda, Andrea Hergenroeder, James O Hill, Edward S Horton, John M Jakicic, Robert W Jeffery, Steven E Kahn, William C Knowler, Cora E Lewis, Marsha Miller, Maria G Montez, David M Nathan, Jennifer L Patricio, Anne L Peters, Xavier Pi-Sunyer, Henry J Pownall, David Reboussin, J Bruce Redmon, Helmut Steinberg, Thomas A Wadden, Lynne E Wagenknecht, Rena R Wing, Catherine R Womack, Susan Z Yanovski, Ping Zhang, Ann V Schwartz
Intentional weight loss is an important treatment option for overweight persons with type 2 diabetes mellitus (DM), but the effects on long term fracture risk are not known. The purpose of this Look AHEAD analysis was to evaluate whether long term intentional weight loss would increase fracture risk in overweight or obese persons with DM. Look AHEAD is a multicenter, randomized clinical trial. Recruitment began in August 2001 and follow-up continued for a median of 11.3 years at 16 academic centers. 5145 persons aged 45 - 76 with DM were randomized to either an intensive lifestyle intervention (ILI) with reduced calorie consumption and increased physical activity designed to achieve and maintain ≥7% weight loss or to diabetes support and education intervention (DSE)...
July 5, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28677166/prediction-of-fractures-and-major-cardiovascular-events-in-men-using-serum-osteoprotegerin-levels-the-prospective-strambo-study
#11
Pawel Szulc, Roland Chapurlat, Lorenz C Hofbauer
Fragility fractures and cardiovascular diseases often coincide. However, data on shared risk factors and markers are scarce. Our aim was to assess the independent associations of serum osteoprotegerin (OPG) levels with the risk of fracture and cardiovascular outcomes (acute coronary syndrome, cardiac death) in older men. A cohort of 819 home-dwelling men aged 60-87 was followed prospectively for 8 years. Serum OPG was measured at baseline by ELISA. Bone mineral density (BMD) at femoral neck and Trabecular Bone Score (TBS) were assessed by DXA...
July 4, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28670771/letter-to-the-editor
#12
LETTER
(no author information available yet)
We have read with great interest the paper by Simon et al "Age- and Sex-Dependent Changes of intra-articular Cortical and Trabecular Bone Structure and the Effects of Rheumatoid Arthritis" (1). Postmenopausal state and Rheumatoid Arthritis (RA) led to significant decrease of both cortical and trabecular intra-articular bone density. This process in RA patients is a sign for a severe disease course predicting erosive disease (2). Bone erosion is an important complication of RA and is associated with deformities and disabilities...
July 2, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28667786/association-between-vertebral-cross-sectional-area-and-vertebral-wedging-in-children-and-adolescents-a-cross-sectional-analysis
#13
Tishya A L Wren, Skorn Ponrartana, Patricia C Aggabao, Ervin Poorghasamians, Vicente Gilsanz
A small vertebral cross-sectional area (CSA) imparts a mechanical disadvantage that escalates the risk for vertebral fractures in elderly populations. We examined whether a small vertebral CSA is also associated with a greater degree of vertebral wedging in children. Measurements of vertebral CSA, lumbar lordosis (LL) or thoracic scoliosis angle and vertebral wedging were obtained in 100 healthy adolescents (50 boys and 50 girls) and 25 girls with adolescent idiopathic scoliosis (AIS) using magnetic resonance imaging...
July 1, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28667785/letter-to-the-editor
#14
LETTER
David Simon, Christoph Simon, Arnd Kleyer, Georg Schett
We thank Rossini and colleagues for their letter (1) commenting on our article (2) "Age- and Sex-Dependent Changes of intra-articular Cortical and Trabecular Bone Structure and the Effects of Rheumatoid Arthritis". In fact, we could not more agree with the view of the authors and congratulate them for this concise summary of the key mechanism involved in bone loss of rheumatoid arthritis. In addition, we think that this letter raises two important points related to inflammatory bone loss: First, Rossini and colleagues point out that bone loss in rheumatoid arthritis arises from a combination of (i) factors specific to rheumatoid arthritis, in particular inflammation and autoimmunity and (ii) more common factors related to age, sex and menopausal status...
July 1, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28667771/long-term-effects-of-severe-burn-injury-on-bone-turnover-and-microarchitecture
#15
Gabriela Katharina Muschitz, Elisabeth Schwabegger, Alexandra Fochtmann, Andreas Baierl, Roland Kocijan, Judith Haschka, Wolfgang Gruther, Jakob E Schanda, Heinrich Resch, Thomas Rath, Peter Pietschmann, Christian Muschitz
Severe burn injury triggers massive alterations in stress hormone levels with a dose-dependent hypermetabolic status including increased bone resorption. This study evaluated bone microarchitecture measured by non-invasive high resolution peripheral quantitative computed tomography (HR-pQCT). Changes of serum bone turnover markers (BTM) as well as regulators of bone signaling pathways involved in skeletal health were assessed. Standardized effect sizes as a quantitative measure regarding the impact of serum changes and the prediction of these changes on bone microarchitecture were investigated...
July 1, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28650589/immediate-initiation-of-antiretroviral-therapy-for-hiv-infection-accelerates-bone-loss-relative-to-deferring-therapy-findings-from-the-start-bone-mineral-density-substudy-a-randomized-trial
#16
Jennifer F Hoy, Birgit Grund, Mollie Roediger, Ann V Schwartz, John Shepherd, Anchalee Avihingsanon, Sharlaa Badal-Faesen, Stephane de Wit, Simone Jacoby, Alberto La Rosa, Sanjay Pujari, Mauro Schechter, David White, Nicole Wyman Engen, Kristine Ensrud, Peer D Aagaard, Andrew Carr
Both HIV infection and antiretroviral therapy (ART) are associated with lower bone mineral density (BMD) and increased fracture risk. Because the relative contributions of ART and untreated HIV to BMD loss are unclear, it is important to quantify the effect of ART on bone. We compared the effect of early ART initiation (CD4 >500 cells/μL) with deferred ART on change in BMD in the START Bone Mineral Density substudy, a randomized trial evaluating the effect of immediate ART initiation versus deferring ART (to CD4 <350 cells/μL)...
June 26, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28650109/inducible-activation-of-fgfr2-in-adult-mice-promotes-bone-formation-after-bone-marrow-ablation
#17
Wei Xu, Fengtao Luo, Quan Wang, Qiaoyan Tan, Junlan Huang, Siru Zhou, Zuqiang Wang, Xianding Sun, Liang Kuang, Min Jin, Nan Su, Wanling Jiang, Liang Chen, Huabing Qi, Ying Zhu, Bo Chen, Hangang Chen, Shuai Chen, Yu Gao, Xiaoling Xu, Chuxia Deng, Lin Chen, Yangli Xie, Xiaolan Du
Apert syndrome is one of the most severe craniosynostoses, resulting from gain-of-function mutations in fibroblast growth factor receptor 2 (FGFR2). Previous studies have shown that gain-of-function mutations of FGFR2 (S252W or P253R) cause skull malformation of human Apert syndrome by affecting both chondrogenesis and osteogenesis, underscoring the key role of FGFR2 in bone development. However, the effects of FGFR2 on bone formation at the adult stage have not been fully investigated. To investigate the role of FGFR2 in bone formation, we generated mice with tamoxifen-inducible expression of mutant FGFR2 (P253R) at the adult stage...
June 26, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28650106/dok3-modulates-bone-remodeling-by-negatively-regulating-osteoclastogenesis-and-positively-regulating-osteoblastogenesis
#18
Xiaofeng Cai, Junjie Xing, Courtney L Long, Qisheng Peng, Mary Beth Humphrey
Osteoclastogenesis is essential for bone remodeling and normal skeletal maintenance. RANKL promotes osteoclast differentiation and function but requires costimulation of immunoreceptor tyrosine-based activation motif (ITAM)-coupled immunoreceptors. Triggering receptor expressed on myeloid cells-2 (TREM2) coupled to ITAM-adaptor protein DNAX activation protein 12kDA (DAP12) provides costimulation of intracellular calcium signaling during osteoclastogenesis. Previously, we found that downstream of kinase-3 (DOK3) physically associates with DAP12 to inhibit toll-like receptor (TLR)-induced inflammatory signaling in macrophages...
June 26, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28650075/isl1-controls-patterning-and-mineralization-of-enamel-in-the-continuously-renewing-mouse-incisor
#19
Adrien Naveau, Bin Zhang, Bo Meng, McGarrett T Sutherland, Michaela Prochazkova, Timothy Wen, Pauline Marangoni, Kyle B Jones, Timothy C Cox, Bernhard Ganss, Andrew H Jheon, Ophir D Klein
Rodents are characterized by continuously renewing incisors whose growth is fueled by epithelial and mesenchymal stem cells housed in the proximal compartments of the tooth. The epithelial stem cells reside in structures known as the labial (toward the lip) and lingual (toward the tongue) cervical loops (laCL and liCL, respectively). An important feature of the rodent incisor is that enamel, the outer, highly mineralized layer, is asymmetrically distributed, as it is normally generated by the laCL but not the liCL...
June 26, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28639740/declining-rates-of-hip-fracture-in-end-stage-renal-disease-analysis-from-the-2003-2011-nationwide-inpatient-sample
#20
Sun Moon Kim, Sai Liu, Jin Long, Maria E Montez-Rath, Mary B Leonard, Glenn M Chertow
The incidence of hip fracture in patients with end-stage renal disease (ESRD) is considerably higher than that in the general age- and sex-matched population. Although medical therapy for chronic kidney disease mineral bone disorder (CKD-MBD) has changed considerably over the last decade, rates of hip fracture in the entire ESRD population have not been well-characterized. Herein, we evaluated temporal trends in rates of hip fracture, in-hospital mortality, and costs of associated hospital stay in ESRD. We identified hospitalizations for hip fracture from 2003 to 2011 using the Nationwide Inpatient Sample, a representative national database inclusive of all ages and payers...
June 22, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
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