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Journal of Bone and Mineral Metabolism

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https://www.readbyqxmd.com/read/28642975/association-of-bone-metabolism-markers-with-coronary-atherosclerosis-and-coronary-artery-disease-in-postmenopausal-women
#1
Yan Ling, Zhen Wang, Bingjie Wu, Xin Gao
This study aimed to evaluate the association of bone metabolism markers with coronary atherosclerosis and coronary artery disease (CAD) in postmenopausal women. Based on the findings of coronary angiography, 111 women with CAD and 116 women without CAD were recruited. Serum calcium, phosphate, parathyroid hormone (PTH), 25-hydroxyvitamin D (25OHD), osteocalcin, N-terminal propeptide of type I procollagen (P1NP) and C-terminal cross-linked telopeptide of type I collagen (CTX) were measured. The Gensini score was used to assess the severity of coronary atherosclerosis...
June 22, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28642974/abdominal-aortic-calcification-and-the-risk-of-bone-fractures-a-meta-analysis-of-prospective-cohort-studies
#2
Dailin Wei, Guanlin Zheng, Yun Gao, Jinying Guo, Tie Zhang
The relationship between abdominal aortic calcification (AAC) and bone fracture has been examined by some observational studies, but the results remain discordant. Therefore, we aimed to assess the link between them by conducting a meta-analysis of prospective studies. Relevant studies were identified by searching PubMed and EMBASE databases until the end of December 2016. Summary relative risks (RRs) and 95% confidence intervals (CIs) for associations between AAC and fracture risk were estimated with fixed- or random- effects models...
June 22, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28616752/effects-of-c-myc-gene-silencing-on-interleukin-1%C3%AE-induced-rat-chondrocyte-cell-proliferation-apoptosis-and-cytokine-expression
#3
Jian Zou, Xiao-Lin Li, Zhong-Min Shi, Jian-Feng Xue
This study explores the effects of C-myc gene silencing on cell proliferation, apoptosis and cytokine expression in interleukin (IL)-1β-induced rat chondrocytes. Primary chondrocytes were obtained from 40 Sprague-Dawley rats. For in vitro C-myc3-shRNA transfection, chondrocytes were assigned to a blank 1, model 1, IL-1β + C-myc3-shRNA, C-myc3-shRNA, (IL-1β + C-myc3-shRNA) + C-myc overexpression, C-myc3-shRNA + C-myc overexpression or IL-1β + C-myc-Con group. Western blotting and quantitative real-time polymerase chain reaction (qRT-PCR) were performed to detect C-myc, PCNA and cyclin D1 mRNA and protein expression...
June 14, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28589412/serum-ctx-levels-and-histomorphometric-analysis-in-src-versus-rankl-knockout-mice
#4
Sunao Takeshita, Toshio Fumoto, Masako Ito, Kyoji Ikeda
Src knockout (KO) and RANKL KO mice both exhibit near complete osteopetrosis in terms of 3D-bone volume (BV) fraction by micro-CT, whereas the serum CTX concentration of Src KO is apparently normal and that of RANKL KO is 30% of wild-type (WT) despite the fact that they lack osteoclasts. By histomorphometry we found that, whereas eroded surface (ES) and osteoid surface (OS) are zero values in RANKL KO, they are indistinguishable from WT in Src KO; because of marked increase in bone surface (BS), ES/BS and OS/BS of Src KO are 30-40% of WT...
June 6, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28589411/accelerated-osteogenic-differentiation-of-human-bone-derived-cells-in-ankylosing-spondylitis
#5
Sungsin Jo, Suman Kang, Jinil Han, Seung Hyun Choi, Ye-Soo Park, Il-Hoon Sung, Tae-Hwan Kim
Ankylosing spondylitis (AS) is characterized by excessive bone formation with syndesmophytes, leading to bony ankylosis. The contribution of osteoblasts to the pathogenesis of ankylosis is poorly understood. The aim of this study was to determine molecular differences between disease controls (Ct) and AS bone-derived cells (BdCs) during osteogenic differentiation with or without inflammation using AS patient serum. We confirmed osteoblastic differentiation of Ct and AS BdCs under osteogenic medium by observing morphological changes and measuring osteoblastic differentiation markers...
June 6, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28589410/computational-segmentation-of-collagen-fibers-in-bone-matrix-indicates-bone-quality-in-ovariectomized-rat-spine
#6
Diaa Eldin S Daghma, Deeksha Malhan, Paul Simon, Sabine Stötzel, Stefanie Kern, Fathi Hassan, Katrin Susanne Lips, Christian Heiss, Thaqif El Khassawna
Bone loss varies according to disease and age and these variations affect bone cells and extracellular matrix. Osteoporosis rat models are widely investigated to assess mechanical and structural properties of bone; however, bone matrix proteins and their discrepant regulation of diseased and aged bone are often overlooked. The current study considered the spine matrix properties of ovariectomized rats (OVX) against control rats (Sham) at 16 months of age. Diseased bone showed less compact structure with inhomogeneous distribution of type 1 collagen (Col1) and changes in osteocyte morphology...
June 6, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28580516/indian-girls-have-higher-bone-mineral-content-per-unit-of-lean-body-than-boys-through-puberty
#7
Anuradha V Khadilkar, Neha Sanwalka, M Zulf Mughal, Shashi Chiplonkar, Vaman Khadilkar
Our aim is to describe changes in the muscle-bone unit assessed as a ratio of bone mineral content (BMC) to lean body mass (LBM) through puberty at total body and various skeletal sites in Indian boys and girls. A cross-sectional study was conducted (888 children, 480 boys, aged 5-17 years) in Pune, India. Pubertal staging was assessed. BMC, LBM and fat percentage at the arms, legs, android, gynoid and total body (less the head) were assessed by dual energy X-ray absorptiometry. The amount of BMC per unit LBM (BMC/LBM) was computed...
June 3, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28528406/responsiveness-to-pamidronate-treatment-is-not-related-to-the-genotype-of-type-i-collagen-in-patients-with-osteogenesis-imperfecta
#8
Junko Kanno, Akiko Saito-Hakoda, Shigeo Kure, Ikuma Fujiwara
Osteogenesis imperfecta (OI) is a heritable disorder characterized by increased bone fragility, low bone mass, dentinogenesis imperfecta, and blue sclerae. Most patients with OI have a mutation in either COL1A1 or COL1A2, which encode type I collagen. We screened these genes in Japanese patients with OI and compared their genotype and phenotype, focusing on the clinical response to treatment with pamidronate. Sequencing analysis of the genes in 19 families revealed 15 mutations, of which ten were missense mutations, thee were nonsense mutations, and two were frameshift mutations...
May 20, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28516219/decreased-sensory-nerve-excitation-and-bone-pain-associated-with-mouse-lewis-lung-cancer-in-trpv1-deficient-mice
#9
Hiroki Wakabayashi, Satoshi Wakisaka, Toru Hiraga, Kenji Hata, Riko Nishimura, Makoto Tominaga, Toshiyuki Yoneda
Bone pain is one of the most common and life-limiting complications of cancer metastasis to bone. Although the mechanism of bone pain still remains poorly understood, bone pain is evoked as a consequence of sensitization and excitation of sensory nerves (SNs) innervating bone by noxious stimuli produced in the microenvironment of bone metastases. We showed that bone is innervated by calcitonin gene-related protein (CGRP)(+) SNs extending from dorsal root ganglia (DRG), the cell body of SNs, in mice. Mice intratibially injected with Lewis lung cancer (LLC) cells showed progressive bone pain evaluated by mechanical allodynia and flinching with increased CGRP(+) SNs in bone and augmented SN excitation in DRG as indicated by elevated numbers of pERK- and pCREB-immunoreactive neurons...
May 17, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28516218/a-high-fat-diet-can-affect-bone-healing-in-growing-rats
#10
Jéssica Suzuki Yamanaka, Gabriela Rezende Yanagihara, Bruna Leonel Carlos, Júnia Ramos, Brígida Batista Brancaleon, Ana Paula Macedo, João Paulo Mardegan Issa, Antônio Carlos Shimano
A high-fat diet (HFD) can have a negative effect on bone quality in young and old people. Although bone healing in children is normally efficient, there is no evidence that children who have a diet rich in fat have compromised bone fracture regeneration compared with children with recommended dietary fat levels. The purpose of the present study was to evaluate the effects of an HFD on bone healing in growing female rats. Twenty-six postweaning female Wistar rats were divided into two groups (13 animals per group): a standard diet (SD) group and an HFD (with 60% of energy from fat) group...
May 17, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28389933/effect-of-radiation-dose-reduction-on-texture-measures-of-trabecular-bone-microstructure-an-in-vitro-study
#11
Muthu Rama Krishnan Mookiah, Thomas Baum, Kai Mei, Felix K Kopp, Georg Kaissis, Peter Foehr, Peter B Noel, Jan S Kirschke, Karupppasamy Subburaj
Osteoporosis is characterized by bone loss and degradation of bone microstructure leading to fracture particularly in elderly people. Osteoporotic bone degeneration and fracture risk can be assessed by bone mineral density and trabecular bone score from 2D projection dual-energy X-ray absorptiometry images. However, multidetector computed tomography image based quantification of trabecular bone microstructure showed significant improvement in prediction of fracture risk beyond that from bone mineral density and trabecular bone score; however, high radiation exposure limits its use in routine clinical in vivo examinations...
April 7, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28389932/monthly-oral-ibandronate-100%C3%A2-mg-is-as-effective-as-monthly-intravenous-ibandronate-1%C3%A2-mg-in-patients-with-various-pathologies-in-the-movest-study
#12
Hiroshi Hagino, Masako Ito, Junko Hashimoto, Masao Yamamoto, Koichi Endo, Kyoko Katsumata, Yoshihiro Asao, Rumiko Matsumoto, Tetsuo Nakano, Hideki Mizunuma, Toshitaka Nakamura
The non-inferiority of oral ibandronate 100 mg to intravenous (i.v.) ibandronate 1 mg in increasing lumbar spine (LS) bone mineral density (BMD) after 12 months of treatment was demonstrated in the randomized, phase III MOVEST study. We conducted subgroup analyses in the per-protocol set of the study (n = 183 oral ibandronate; n = 189 i.v. ibandronate). In patients with LS BMD T score ≥ -3.0 or < -3.0 at screening, LS BMD gains from baseline were 4.42 and 5.79%, respectively, with oral ibandronate, and 4...
April 7, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28389931/physicochemical-characterization-of-mineral-deposits-in-human-ligamenta-flava
#13
Sylwia Orzechowska, Andrzej Wróbel, Marcin Kozieł, Wiesław Łasocha, Eugeniusz Rokita
The aim of our study was the detailed characterization of calcium deposits in ligamenta flava. The use of microcomputed tomography allowed extending the routine medical investigations to characterize mineral grains in the microscopic scale. A possible connection between spinal stenosis and ligament mineralization was investigated. The studies were carried out on 24 surgically removed ligamentum flavum samples divided into control and stenosis groups. Physicochemical characterization of the inorganic material was performed using X-ray fluorescence, X-ray diffraction, and Fourier transform infrared spectroscopy...
April 7, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28365812/serum-levels-of-matrix-metalloproteinase-3-and-autoantibodies-related-to-rheumatoid-arthritis-in-the-general-japanese-population-and-their-association-with-osteoporosis-and-osteoarthritis-the-road-study
#14
Rie Kodama, Shigeyuki Muraki, Toshiko Iidaka, Hiroyuki Oka, Masatoshi Teraguchi, Ryohei Kagotani, Yoshiki Asai, Hiroshi Hashizume, Munehito Yoshida, Hiroshi Kawaguchi, Kozo Nakamura, Toru Akune, Sakae Tanaka, Noriko Yoshimura
To purpose of this study was to reveal the mean levels and positive proportion of serological markers related to rheumatoid arthritis, and clarify their relationship with osteoporosis and hand osteoarthritis (OA). A total of 1546 participants from the third survey of the research on osteoarthritis/osteoporosis against disability study were enrolled in the current study. Using participant blood samples, the levels of anti-cyclic citrullinated protein (CCP) antibody, rheumatoid factor (RF), matrix metalloproteinase-3 (MMP-3), C-reactive protein (CRP), and high-sensitivity CRP (hsCRP) were measured...
April 1, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28365811/disuse-osteopenia-induced-by-botulinum-toxin-is-similar-in-skeletally-mature-young-and-aged-female-c57bl-6j-mice
#15
Jens Bay Vegger, Annemarie Brüel, Mikkel Bo Brent, Jesper Skovhus Thomsen
Osteopenia and osteoporosis predominately occur in the fully grown skeleton. However, it is unknown whether disuse osteopenia in skeletally mature, but growing, mice resembles that of fully grown mice. Twenty-four 16-week-old (young) and eighteen 44-week-old (aged) female C57BL/6J mice were investigated. Twelve young and nine aged mice were injected with botulinum toxin in one hind limb; the remaining mice served as controls. The mice were euthanized after 3 weeks of disuse. The femora were scanned by micro-computed tomography (µCT) and bone strength was determined by mechanically testing the femoral mid-diaphysis and neck...
April 1, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28364325/vitamin-d-status-and-abdominal-aortic-calcification-in-postmenopausal-women
#16
A El Maghraoui, T Hamza, S Sadni, A El Maataoui, A Majjad, A Rezqi, Z Ouzzif, A Mounach
Vitamin D has an important role in bone metabolism and may be involved in the process of vascular calcification. The objective of this study was to evaluate the effect of vitamin D status on the presence of abdominal aortic calcification (AAC). We enrolled, in a cross-sectional study, 429 postmenopausal women [mean age, weight, and BMI of 59.5 ± 8.3 (50-83) years, 75.8 ± 13.3 (35-165) kg, and 29.9 ± 5.2 (14.6-50.8) kg/m(2), respectively]. Lateral vertebral fracture assessment (VFA) images and scans of the lumbar spine and proximal femur were obtained using a Lunar Prodigy densitometer...
March 31, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28364324/primary-hyperparathyroidism-insights-from-the-indian-phpt-registry
#17
Sanjay Kumar Bhadada, Ashutosh Kumar Arya, Satinath Mukhopadhyay, Rajesh Khadgawat, Suja Sukumar, Sailesh Lodha, Deependra N Singh, Anjali Sathya, Priyanka Singh, Anil Bhansali
The presentation of primary hyperparathyroidism (PHPT) is variable throughout the world. The present study explored retrospective data submitted to the Indian PHPT registry ( http://www.indianphptregistry.com ) between July 2005 and June 2015 from 5 centres covering four different geographical regions. The clinical, biochemical, radiological and histopathological characteristics of PHPT patients across India were analysed for similarity and variability across the centres. A total of 464 subjects (137 men and 327 women) with histopathologically proven PHPT were analysed...
March 31, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28357594/knockdown-of-ggps1-in-chondrocyte-expedites-fracture-healing-by-accelerating-the-progression-of-endochondral-ossification-in-mice
#18
Bingyang Dai, Qiangqiang Li, Xiaoxiao Song, Yuxiang Ge, Jing Wu, Kaijia Zhang, Chao Wang, Yifeng Zhang, Huajian Teng, Chaojun Li, Qing Jiang
Bone fracture healing is achieved through the proliferation and differentiation of stem cells, while bone marrow stem cells (BMSCs) contribute to endochondral ossification. During fracture healing, mesenchymal progenitor cells first form a cartilaginous blastema that becomes vascularized to recruit precursor cells of osteoblasts through the bone morphogenetic protein 2 (Bmp2)/Smad-dependent Runx2 pathway. Statins deplete geranylgeranyl diphosphate (GGPP), which participates in the regulation of BMSCs differentiation, through the inhibition of 3-hydroxy-3-methylglutaryl (HMG)-CoA reductase, leading to impaired protein geranylgeranylation, which strongly impacts the bone synthesis induced by Bmp2...
March 29, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28357593/the-relationship-between-subclinical-thyroid-dysfunction-and-the-risk-of-fracture-or-low-bone-mineral-density-a-systematic-review-and-meta-analysis-of-cohort-studies
#19
Ruifei Yang, Liang Yao, Yuan Fang, Jing Sun, Tiankang Guo, Kehu Yang, Limin Tian
Our aim was to assess the risk of fractures or low bone mineral density (BMD) associated with subclinical thyroid dysfunction among cohorts. We systematically searched Medline (via PubMed), EMBASE, Cochrane Library, Web of Science, CENTRAL and SinoMed up to 31 July 2016 to identify cohort studies which have analyzed associations between subclinical thyroid dysfunction and fracture or BMD. A total of 19 population-based cohorts including 79,368 participants with relationships between subclinical thyroid dysfunction and fractures or BMD were identified as eligible for this meta-analysis...
March 29, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28342094/comparison-of-the-use-of-rhbmp-7-versus-iliac-crest-autograft-in-single-level-lumbar-fusion-a-meta-analysis-of-randomized-controlled-trials
#20
Fubiao Ye, Zhiyuan Zeng, Jianru Wang, Hui Liu, Hua Wang, Zhaomin Zheng
The aim of this study was to evaluate the safety and clinical effectiveness of rhBMP-7 (or osteogenic protein-1) versus that of autogenous iliac crest bone graft (ICBG) in single-level posterolateral fusion (PLF) of the lumbar spine. A systematic search of all articles published through July 1, 2016 was conducted in databases such as PubMed, EMBASE, Scopus, and the Cochrane Collaboration Library. Randomized controlled trials (RCTs) that compared rhBMP-7 with ICBG for the treatment of single-level degenerative spondylolisthesis, provided the fusion rate, clinical success rate, safety and adverse events report, operation time, and hospital stay durations as the outcome were assessed...
March 24, 2017: Journal of Bone and Mineral Metabolism
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