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Journal of Bone and Mineral Metabolism

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https://www.readbyqxmd.com/read/28884422/less-strict-intervention-thresholds-for-the-frax-and-tbs-adjusted-frax-predict-clinical-fractures-in-osteopenic-postmenopausal-women-with-no-prior-fractures
#1
Martin Kužma, Didier Hans, Tomáš Koller, Eva Némethová, Peter Jackuliak, Zdenko Killinger, Heinrich Resch, Juraj Payer
Little is known about the clinical relevance of treating post-menopausal women with no prior history of fragility fracture and bone mineral densities (BMD) within the osteopenic range. In recent years, in addition to BMD and FRAX fracture probability assessments, a surrogate measure of bone micro-architecture quality, called the trabecular bone score (TBS), has been proven to predict future fragility fractures independently of both BMD and the FRAX. In this retrospective analysis of a follow-up study, we compared three risk assessment instruments-the FRAX, the TBS, and a TBS-adjusted FRAX score-in their ability, to predict future fragility fractures over a minimum of five years of follow-up among post-menopausal osteopenic women with no prior fragility fractures...
September 7, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28884394/a-decrease-in-the-number-and-incidence-of-osteoporotic-hip-fractures-among-elderly-individuals-in-niigata-japan-from-2010-to-2015
#2
Norio Imai, Naoto Endo, Yugo Shobugawa, Shinya Ibuchi, Hayato Suzuki, Dai Miyasaka, Mayumi Sakuma
We investigated the incidence of hip fracture in patients aged ≥50 years in 2015 in Niigata Prefecture, Japan. We also determined the long-term trend in hip fracture incidence from 1985 to 2015. In 2015, 3214 hip fractures occurred in Niigata Prefecture. The crude incidence rate of hip fracture was 282.7 per 100,000 persons per year (122.9 in men and 416.4 in women). The incidence of hip fracture decreased from 2010 to 2015 in all age groups except in men aged 65-69 years and women aged 60-64 years. The percentage of patients who took anti-osteoporotic medication before their hip fractures increased from 10...
September 7, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28884379/genetic-interaction-of-purinergic-p2x7-receptor-and-er-%C3%AE-polymorphisms-in-susceptibility-to-osteoporosis-in-chinese-postmenopausal-women
#3
Hui Wang, Chengxin Gong, Xingzi Liu, Shenqiang Rao, Tao Li, Luling He, Yijun Nie, Shuo Wang, Peipei Zhong, Yansong Xue, Jihong Wang, Jiani Zhao, Yuru Zhou, Lu Ding, Yunming Tu, Yuping Yang, Chaopeng Xiong, Shangdong Liang, Hong Xu
Osteoporosis (OP) is an increasing public health problem worldwide. Genetic factors are considered to be major contributors to the pathogenesis of OP. The aim of this study was to investigate the association of the purinergic P2X7 receptor (P2X7R) and estrogen receptor-α (ER-α) genes with OP risk, and the effect of the possible interaction between the two genes on predisposition to OP in Chinese postmenopausal women. A total of 596 subjects, including 350 OP patients and 246 controls, were recruited in this case-control study...
September 7, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28779404/effects-of-interventions-with-a-physical-activity-component-on-bone-health-in-obese-children-and-adolescents-a-systematic-review-and-meta-analysis
#4
REVIEW
Elodie Chaplais, Geraldine Naughton, David Greene, Frederic Dutheil, Bruno Pereira, David Thivel, Daniel Courteix
Given the rise in pediatric obesity, clarifications on the relationship between obesity and bone health and on the impact of structured intervention on this relationship are needed. This systematic review and meta-analysis investigated the effect of obesity on bone health and assessed the effect of structured intervention in children and adolescents with obesity. Medline complete, OVID, CINAHL, EMBASE and PubMed databases were searched for studies on obesity and bone health variables up to September 2016, then an update occurred in March 2016...
August 4, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28770354/thrap3-interacts-with-and-inhibits-the-transcriptional-activity-of-sox9-during-chondrogenesis
#5
Takashi Sono, Haruhiko Akiyama, Shigenori Miura, Jian Min Deng, Chisa Shukunami, Yuji Hiraki, Yu Tsushima, Yoshiaki Azuma, Richard R Behringer, Shuichi Matsuda
Sex-determining region Y (Sry)-box (Sox)9 is required for chondrogenesis as a transcriptional activator of genes related to chondrocyte proliferation, differentiation, and cartilage-specific extracellular matrix. Although there have been studies investigating the Sox9-dependent transcriptional complexes, not all their components have been identified. In the present study, we demonstrated that thyroid hormone receptor-associated protein (THRAP)3 is a component of a SOX9 transcriptional complex by liquid chromatography mass spectrometric analysis of FLAG-tagged Sox9-binding proteins purified from FLAG-HA-tagged Sox9 knock-in mice...
August 2, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28766140/assessment-of-the-effects-of-switching-oral-bisphosphonates-to-denosumab-or-daily-teriparatide-in-patients-with-rheumatoid-arthritis
#6
Kosuke Ebina, Makoto Hirao, Jun Hashimoto, Keisuke Hagihara, Masafumi Kashii, Kazuma Kitaguchi, Hozo Matsuoka, Toru Iwahashi, Ryota Chijimatsu, Hideki Yoshikawa
The aim of this observational, non-randomized study was to clarify the unknown effects of switching oral bisphosphonates (BPs) to denosumab (DMAb) or daily teriparatide (TPTD) in patients with rheumatoid arthritis (RA). The characteristics of the 194 female patients included in the study were 183 postmenopausal, age 65.9 years, lumbar spine (LS) T score -1.8, femoral neck (FN) T score -2.3, dose and rate of taking oral prednisolone (3.6 mg/day) 75.8%, and prior BP treatment duration 40.0 months. The patients were allocated to (1) the BP-continue group (n = 80), (2) the switch-to-DMAb group (n = 74), or (3) the switch-to-TPTD group (n = 40)...
August 1, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28766139/extracellular-vesicle-mediated-bone-metabolism-in-the-bone-microenvironment
#7
REVIEW
Qi Li, Qiu-Ping Huang, Yi-Lin Wang, Qing-Sheng Huang
Extracellular vesicles (EVs) are phospholipid membrane-enclosed entities containing specific proteins, RNA, miRNA, and lncRNA. EVs are released by various cells and play a vital role in cell communication by transferring their contents from the host cells to the recipient cells. The role of EVs has been characterized in a wide range of physiological and pathophysiological processes. In this context, we highlight recent advances in our understanding of the regulatory effects of EVs, with a focus on bone metabolism and the bone microenvironment...
August 1, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28766138/allogeneic-yet-major-histocompatibility-complex-matched-bone-marrow-transplantation-in-mice-results-in-an-impairment-of-osteoblasts-and-a-significantly-reduced-trabecular-bone
#8
Anja Osterberg, Robby Engelmann, Brigitte Müller-Hilke
Secondary osteopenia following allogeneic bone marrow or stem cell transplantation (BMT or HSCT) is a significant source of morbidity in patients. It is believed to be caused by a number of factors related to the myeloablative conditioning and subsequent therapy regimen. We here aimed to investigate whether the allogeneic bone marrow by itself directly impacts on the bone mass of the patient. We thus performed syn- and allogeneic BMT between two inbred mouse strains, which share an identical major histocompatibility complex background yet differ in their bone phenotypes...
August 1, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28766137/inhaled-glucocorticoids-are-associated-with-vertebral-fractures-in-copd-patients
#9
Pedro Assed Gonçalves, Rafael Dos Santos Neves, Leonardo Vieira Neto, Miguel Madeira, Fernando Silva Guimarães, Laura Maria Carvalho Mendonça, Agnaldo Jose Lopes, Maria Lucia Fleiuss Farias
Chronic obstructive pulmonary disease (COPD) is an independent risk factor for osteoporosis. Oral glucocorticoids are deleterious to bone; however, the impact of inhaled glucocorticoids (ICS) remains unclear. Our objective was to determine whether ICS contribute to osteoporosis and fragility fractures. Sixty-one COPD patients, 35 current users of ICS and 26 who had never received glucocorticoids, were evaluated for bone mineral density (BMD) and body composition and underwent vertebral fracture assessment (VFA)...
August 1, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28766136/zoledronic-acid-and-bone-cellular-respiration
#10
Mohammed T Alsamri, Suleiman Al-Hammadi, Barira Islam, Abdul-Kader Souid
Phosphorescence O2 analyzer was used to measure calvarial bone cellular respiration (cellular mitochondrial O2 consumption) in Taylor Outbred mice in the presence and absence of zoledronic acid. This potent bisphosphonate inhibits osteoclast-mediated calcium resorption, and its effects on bone respiration have not been previously investigated. The change of O2 concentration with time was measured in closed vials containing phosphate-buffered saline (PBS), 5 mM glucose and 5-25 mg calvarial bone fragments, and it was complex for t = 0-30 h...
August 1, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28766135/low-serum-osteocalcin-concentration-is-associated-with-incident-type-2-diabetes-mellitus-in-japanese-women
#11
Tomohiko Urano, Masataka Shiraki, Tatsuhiko Kuroda, Shiro Tanaka, Fumihiko Urano, Kazuhiro Uenishi, Satoshi Inoue
Increasing evidence suggests that osteocalcin is involved in the regulation of glucose homeostasis. However, the relationship between serum osteocalcin levels and risk of incident type 2 diabetes mellitus is not clear. The objective of this study is to investigate whether serum osteocalcin levels are associated with the risk of incident type 2 diabetes mellitus. This study included 1691 Japanese postmenopausal women, 61 incident diabetes cases, and 1630 non-diabetic control subjects in the observation period...
August 1, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28766134/bone-health-in-long-term-gastric-cancer-survivors-a-prospective-study-of-high-dose-vitamin-d-supplementation-using-an-easy-administration-scheme
#12
Marta Climent, Manuel Pera, Isabel Aymar, José M Ramón, Luis Grande, Xavier Nogués
Bone disease in long-term survivors after gastric cancer resection has received little research attention. This study aimed to investigate bone health after curative resection of gastric cancer and the consequences of high-dose vitamin D supplementation in patients with low levels of 25-(OH)-vitamin D. Disease-free patients at least 24 months after gastric cancer resection represented the study cohort. Serum markers of bone metabolism were assessed at baseline and at 3 and 12 months. Bone mineral density and presence of fractures were assessed by X-ray at baseline...
August 1, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28681148/effects-of-denosumab-treatment-on-bone-mineral-density-and-joint-destruction-in-patients-with-rheumatoid-arthritis
#13
Takeshi Mochizuki, Koichiro Yano, Katsunori Ikari, Kosei Kawakami, Ryo Hiroshima, Naoko Koenuma, Mina Ishibashi, Shigeki Momohara
We aimed to investigate the efficacy of denosumab for rheumatoid arthritis (RA). This study enrolled 70 RA patients who received denosumab 60 mg subcutaneous injection at baseline and at 6 months. Bone mineral densities (BMD) of the lumbar spine, total hip, femoral neck, and hand were measured by dual energy X-ray absorptiometry. Changes in total modified Sharp score (mTSS), erosion (EN) score, and joint space narrowing score at baseline from 12 months before and at 12 months from baseline. The mean values of BMD of the lumbar spine, total hip, femoral neck, and hand significantly increased by 7...
July 5, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28681147/therapeutic-effect-of-icariin-combined-with-stem-cells-on-postmenopausal-osteoporosis-in-rats
#14
Dao Tang, Cuiling Ju, Yanjie Liu, Fei Xu, Zhengguang Wang, Dongbo Wang
Osteoporosis is characterized by skeletal fragility and microarchitectural deterioration. The side effects of drugs to treat osteoporosis will negatively affect the health of patients. This study aimed to investigate the therapeutic effects of icariin combined with adipose-derived stem cells on osteoporosis in a postmenopausal osteoporosis model after ovariectomy in rats. After ovariectomy the rats were treated with icariin combined with adipose-derived stem cell transplantation. The levels of alkaline phosphatase, tartrate-resistant acid phosphatase, osteoprotegerin, and bone γ-carboxyglutamate protein in serum were determined by ELISA...
July 5, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28664247/association-between-leg-bowing-and-serum-alkaline-phosphatase-level-regardless-of-the-presence-of-a-radiographic-growth-plate-abnormality-in-pediatric-patients-with-genu-varum
#15
Yuko Sakamoto, Muneaki Ishijima, Mayuko Kinoshita, Lizu Liu, Mitsuyoshi Suzuki, Sung-Gon Kim, Koichi Kamata, Akifumi Tokita, Haruka Kaneko, Toshiaki Shimizu, Kazuo Kaneko, Masahiko Nozawa
When children around 2 years of age show leg bowing and diseases are ruled out based on radiographic findings without conducting blood tests, they are classified as "physiologic" genu varum. Since whether or not physiologic genu varum is associated with bone metabolism is unclear, this study was conducted to clarify the association between genu varum and bone metabolism in children. Thirty-five pediatric patients with genu varm who visited our out-patient clinic were enrolled. While two of the 35 children had nutritional rickets, showing abnormalities on both blood test (ALP, ≥1000 IU/L; iPTH, >65 pg/mL and 25(OH)D, ≤20 ng/mL) and radiographs (such as cupping, fraying or splaying), five of 35 children showed abnormalities on blood tests but not radiographs...
June 29, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28660377/local-administration-of-wp9qy-w9-peptide-promotes-bone-formation-in-a-rat-femur-delayed-union-model
#16
Mikiya Sawa, Shigeyuki Wakitani, Naosuke Kamei, Shinji Kotaka, Nobuo Adachi, Mitsuo Ochi
The WP9QY peptide (W9) consists of nine amino acids. It binds to RANKL and blocks RANKL-induced increases in bone resorption and osteoclastogenesis. W9 has a unique effect on the coupling mechanism between osteoclasts and osteoblasts, which promotes bone formation while working to suppress bone resorption. In this study, with the aim of clinical application of W9 for fracture treatment, we aimed to clarify the bone repair-promoting effect of W9 when administered locally to a rat femur model of delayed union...
June 28, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28660376/bone-metabolism-markers-and-angiogenic-cytokines-as-regulators-of-human-hematopoietic-stem-cell-mobilization
#17
Pantelis Tsirkinidis, Evangelos Terpos, Georgios Boutsikas, Athanasios Papatheodorou, Konstantinos Anargyrou, Eleni Lalou, Aglaia Dimitrakopoulou, Christina Kalpadakis, Konstantinos Konstantopoulos, Marina Siakantaris, Panayiotis Panayiotidis, Gerassimos Pangalis, Marie-Christine Kyrtsonis, Theodoros Vassilakopoulos, Maria K Angelopoulou
Hematopoietic stem cell (HSC) mobilization involves cleavage of ligands between HSC and niche components. However, there are scarce data regarding the role of bone cells in human HSC mobilization. We studied biochemical markers of bone metabolism and angiogenic cytokines during HSC mobilization in 46 patients' sera with lymphoma and multiple myeloma, by ELISA. Significant changes between pre-mobilization and collection samples were found: (1) Bone alkaline phosphatase (BALP) increased, indicating augmentation of bone formation; (2) Receptor activator of Nf-κB ligand/osteoprotegerin ratio (RANKL/OPG) increased, showing osteoclastic differentiation and survival; however, there was no evidence of increased osteoclastic activity; and (3) Angiopoietin-1/Angiopoietin-2 ratio (ANGP-1/ANGP-2) decreased, consistent with vessel destabilization...
June 28, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27628044/genetic-admixture-and-body-composition-in-puerto-rican-adults-from-the-boston-puerto-rican-osteoporosis-study
#18
Sabrina E Noel, Sandra Arevalo, Caren E Smith, Chao-Qiang Lai, Bess Dawson-Hughes, Jose M Ordovas, Katherine L Tucker
Population admixture plays a role in the risk of chronic conditions that are related to body composition; however, our understanding of these associations in Puerto Ricans, a population characterized by multiple ancestries, is limited. This study investigated the relationship between genetic admixture and body composition in 652 Puerto Ricans from the Boston Puerto Rican Osteoporosis Study. Genetic ancestry was estimated from 100 ancestry-informative markers. Body composition measures were obtained from dual-energy X-ray absorptiometry...
July 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28647818/assessment-of-the-effect-of-systemic-delivery-of-sclerostin-antibodies-on-wnt-signaling-in-distraction-osteogenesis
#19
Mohammad M Alzahrani, Asim M Makhdom, Frank Rauch, Dominique Lauzier, Maria Kotsiopriftis, Saber Ghadakzadeh, Reggie C Hamdy
Sclerostin is a known inhibitor of the Wnt signaling pathway which is involved in osteogenesis and, when inactivated, stimulates bone formation. To our knowledge, this effect has not been studied in the context of distraction osteogenesis (DO). Tibial DO was conducted on a total of 24 wild-type mice, which were then divided into 2 groups-a saline injection group (control) and an anti-sclerostin (Scl-Ab) injection group (treatment). The mice in the treatment group received 100 mg/kg intravenous injections of the antibody weekly until killing...
June 24, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28642975/association-of-bone-metabolism-markers-with-coronary-atherosclerosis-and-coronary-artery-disease-in-postmenopausal-women
#20
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
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