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Journal of Bone and Mineral Metabolism

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https://www.readbyqxmd.com/read/28035494/antiresorptive-agent-related-osteonecrosis-of-the-jaw-position-paper-2017-of-the-japanese-allied-committee-on-osteonecrosis-of-the-jaw
#1
Toshiyuki Yoneda, Hiroshi Hagino, Toshitsugu Sugimoto, Hiroaki Ohta, Shunji Takahashi, Satoshi Soen, Akira Taguchi, Toshihiko Nagata, Masahiro Urade, Takahiko Shibahara, Satoru Toyosawa
Antiresorptive agent-related osteonecrosis of the jaw (ARONJ) is an intractable, though rare, complication in cancer patients with bone metastases and patients with osteoporosis who are treated with antiresorptive agents, including bisphosphonates and denosumab. Despite the more than 10 years that have passed since the first cases of bisphosphonate-related osteonecrosis of the jaw (BRONJ) were reported, our understanding of the epidemiology and pathophysiology of ARONJ remains limited, and data supported by evidence-based medicine are still sparse...
December 29, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28028633/real-world-evidence-of-raloxifene-versus-alendronate-in-preventing-non-vertebral-fractures-in-japanese-women-with-osteoporosis-retrospective-analysis-of-a-hospital-claims-database
#2
Sakae Tanaka, Takanori Yamamoto, Eisei Oda, Masaki Nakamura, Saeko Fujiwara
We conducted a retrospective cohort study using a de-identified hospital administrative claims database to assess the risk of non-vertebral fracture in Japanese women with osteoporosis treated with raloxifene compared with alendronate. The study included Japanese women ≥50 years of age with newly initiated alendronate or raloxifene treatment between July 2008 and March 2013 (index date was defined as the day of first prescription for alendronate or raloxifene), and had any claim with an osteoporosis definition during the study period...
December 27, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28028632/the-rs3736228-polymorphism-in-the-lrp5-gene-is-associated-with-calcaneal-ultrasound-parameter-but-not-with-body-composition-in-a-cohort-of-young-caucasian-adults
#3
María Correa-Rodríguez, Jacqueline Schmidt-RioValle, Blanca Rueda-Medina
The aim of the present study was to investigate the possible influence of low-density lipoprotein receptor-related protein 5 (LRP5) and sclerostin (SOST) genes as genetic factors contributing to calcaneal quantitative ultrasound (QUS) and body composition variables in a population of young Caucasian adults. The study population comprised a total of 575 individuals (mean age 20.41years; SD 2.36) whose bone mass was assessed through QUS to determine broadband ultrasound attenuation (BUA, dB/MHz). Body composition measurements were performed using a body composition analyser...
December 27, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28012008/bivariate-genome-wide-association-analyses-identified-genetic-pleiotropic-effects-for-bone-mineral-density-and-alcohol-drinking-in-caucasians
#4
Shan Lu, Lan-Juan Zhao, Xiang-Ding Chen, Christopher J Papasian, Ke-Hao Wu, Li-Jun Tan, Zhuo-Er Wang, Yu-Fang Pei, Qing Tian, Hong-Wen Deng
Several studies indicated bone mineral density (BMD) and alcohol intake might share common genetic factors. The study aimed to explore potential SNPs/genes related to both phenotypes in US Caucasians at the genome-wide level. A bivariate genome-wide association study (GWAS) was performed in 2069 unrelated participants. Regular drinking was graded as 1, 2, 3, 4, 5, or 6, representing drinking alcohol never, less than once, once or twice, three to six times, seven to ten times, or more than ten times per week respectively...
December 23, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28000034/safety-pharmacokinetics-and-changes-in-bone-metabolism-associated-with-zoledronic-acid-treatment-in-japanese-patients-with-primary-osteoporosis
#5
Masataka Shiraki, Satoshi Tanaka, Hiroaki Suzuki, Satoko Ueda, Toshitaka Nakamura
Although once-yearly intravenous administration of zoledronic acid has been reported to inhibit bone resorption and increase bone mineral density, no studies have evaluated its effectiveness in treating osteoporosis in Japanese patients. Therefore, the purpose of this study was to investigate the pharmacokinetics and assess the safety of and changes in bone metabolism associated with zoledronic acid treatment in Japanese patients with primary osteoporosis. This was a single-administration study with a single-blind parallel-group design...
December 20, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27942979/use-of-dual-energy-computed-tomography-to-measure-skeletal-wide-marrow-composition-and-cancellous-bone-mineral-density
#6
Luke Arentsen, Karen E Hansen, Masashi Yagi, Yutaka Takahashi, Ryan Shanley, Angela McArthur, Patrick Bolan, Taiki Magome, Douglas Yee, Jerry Froelich, Susanta K Hui
Temporal and spatial variations in bone marrow adipose tissue (MAT) can be indicative of several pathologies and confound current methods of assessing immediate changes in bone mineral remodeling. We present a novel dual-energy computed tomography (DECT) method to monitor MAT and marrow-corrected volumetric BMD (mcvBMD) throughout the body. Twenty-three cancellous skeletal sites in 20 adult female cadavers aged 40-80 years old were measured using DECT (80 and 140 kVp). vBMD was simultaneous recorded using QCT...
December 9, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27942978/dietary-factors-and-fibroblast-growth-factor-23-levels-in-young-adults-with-african-ancestry
#7
Dominique Kosk, Holly Kramer, Amy Luke, Pauline Camacho, Pascal Bovet, Jacob Plange Rhule, Terrence Forrester, Myles Wolf, Chris Sempos, Michal L Melamed, Lara R Dugas, Richard Cooper, Ramon Durazo-Arvizu
Fibroblast growth factor-23 (FGF23), a phosphaturic hormone secreted mainly by osteocytes, maintains serum phosphate levels within a tight range by promoting phosphaturia. Previous studies have mainly focused on the link between FGF23 levels and dietary intake of phosphate, but other dietary factors may also influence FGF23 levels. This cross-sectional study pooled three populations of young adults with African ancestry (452 in Chicago, IL, USA; 477 in Victoria, Seychelles; and 482 in Kumasi, Ghana) with estimated glomerular filtration rate >80 ml/min/1...
December 9, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27928661/nonalcoholic-fatty-liver-disease-and-osteoporosis-a-systematic-review-and-meta-analysis
#8
Sikarin Upala, Veeravich Jaruvongvanich, Karn Wijarnpreecha, Anawin Sanguankeo
Several major risk factors for osteoporosis have been identified. One of these risk factors is chronic inflammation. Several recent studies have supported the association between low bone mineral density (BMD) and nonalcoholic fatty liver disease (NAFLD), which comprises a spectrum of disorders involving liver inflammation. However, conflicting evidence regarding this association has been obtained thus far. We, therefore, conducted a meta-analysis of observational studies to show the association between NAFLD and BMD...
December 7, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27913900/bone-mineral-density-of-extremities-is-associated-with-coronary-calcification-and-biopsy-verified-vascular-calcification-in-living-donor-renal-transplant-recipients
#9
Zhimin Chen, Jia Sun, Mathias Haarhaus, Peter Barany, Lars Wennberg, Jonaz Ripsweden, Torkel B Brismar, Bengt Lindholm, Annika Wernerson, Magnus Söderberg, Peter Stenvinkel, Abdul Rashid Qureshi
Chronic kidney disease (CKD) mineral and bone disorders (CKD-MBD) may lead to low bone mineral density (BMD) and vascular calcification (VC), but links to the latter are unclear. Here we investigated associations between BMD, coronary artery calcium (CAC) scores, and histological signs of VC in end-stage renal disease (ESRD) patients undergoing living-donor kidney transplantation (LD-Rtx). In 66 ESRD patients (median age 45 years, 68% males), BMD (by dual-energy X-ray absorptiometry, DXA), CAC score (by computed tomography, CT; n = 54), and degree of VC score (graded by histological examination of epigastric artery specimens collected at LD-Rtx; n = 55) were assessed at the time of LD-Rtx...
December 2, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27882481/assessment-criteria-for-vitamin-d-deficiency-insufficiency-in-japan-proposal-by-an-expert-panel-supported-by-the-research-program-of-intractable-diseases-ministry-of-health-labour-and-welfare-japan-the-japanese-society-for-bone-and-mineral-research-and-the
#10
Ryo Okazaki, Keiichi Ozono, Seiji Fukumoto, Daisuke Inoue, Mika Yamauchi, Masanori Minagawa, Toshimi Michigami, Yasuhiro Takeuchi, Toshio Matsumoto, Toshitsugu Sugimoto
Vitamin D is indispensable for the maintenance of bone and mineral health. Inadequate vitamin D action increases the risk for various musculoskeletal/mineral events including fracture, fall, secondary hyperparathyroidism, diminished response to antiresorptives, rickets/osteomalacia, and hypocalcemia. Its most common cause in recent years is vitamin D deficiency/insufficiency, clinically defined by a low serum 25-hydroxyvitamin D [25(OH)D] level. Guidelines for vitamin D insufficiency/deficiency defined by serum 25(OH)D concentrations have been published all over the world...
November 23, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27873077/impaired-osteogenic-differentiation-and-enhanced-cellular-receptor-of-advanced-glycation-end-products-sensitivity-in-patients-with-type-2-diabetes
#11
Mattabhorn Phimphilai, Peraphan Pothacharoen, Prachya Kongtawelert, Nipon Chattipakorn
Preclinical studies have demonstrated impaired osteoblast differentiation in type 2 diabetes (T2DM), which is related to skeletal accumulation of advanced glycation end products (AGEs). However, the role of AGE in osteoblast differentiation in patients with T2DM is unclear. This cross-sectional study was performed to investigate osteoblast differentiation and its association with serum pentosidine and soluble receptor of AGEs (sRAGE). Twenty-seven patients with T2DM and 15 age-matched controls were included to measure sRAGE and osteogenic differentiation in mononuclear cells derived from peripheral blood...
November 21, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27873076/the-association-of-testosterone-sex-hormone-binding-globulin-and-insulin-like-growth-factor-1-with-bone-parameters-in-korean-men-aged-50%C3%A2-years-or-older
#12
Hye-Jung Kim, Hyung Suk Koo, Young-Sang Kim, Moon Jong Kim, Kwang-Min Kim, Nam-Seok Joo, Ji-Hee Haam
Testosterone and insulin-like growth factor-1 (IGF-1) are essential factors for the maintenance of bone health in men. However, the results for the association of testosterone and IGF-1 with bone parameters were not consistent in prior studies. We evaluated the relationship of testosterone, sex hormone-binding globulin (SHBG), and IGF-1 with bone mineral density (BMD) and bone turnover markers (BTMs) in Korean men. We enrolled 1227 men aged ≥50 years in this cross-sectional study. Serum levels of total testosterone (TT), SHBG, IGF-1, osteocalcin, and C-terminal cross-linking telopeptide of type I collagen (CTX) were measured...
November 21, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27873075/increased-risk-of-hip-fractures-in-korean-patients-with-type-2-diabetes-a-6-year-nationwide-population-based-study
#13
Se Hwa Kim, Yoo Mee Kim, Jeong Seon Yoo, Eun Yeong Choe, Tae Ho Kim, Young Jun Won
We compared the incidence and risk of hip fractures in Korean patients with type 2 diabetes and non-diabetic subjects in a nationwide population-based study. The study included 17,110 patients diagnosed with type 2 diabetes in 2004 and 34,220 randomly selected age- and sex-matched control subjects drawn from the Korean National Health Insurance Research database. Fracture events occurring between 2004 and 2010 were identified from medical claims data. The adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) for fractures associated with diabetes were calculated...
November 21, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27873074/a-cross-sectional-study-of-the-association-between-adipokine-levels-and-bone-mineral-density-according-to-obesity-and-menopausal-status-in-korean-women
#14
Ji-Hee Haam, Young-Sang Kim, Moon Jong Kim, Hyung Suk Koo, Hyung Yuk Kim, Hye-Jung Kim, Ki Hyun Park, Nam-Seok Joo, Kyung-Chae Park
Results regarding the association between adipokine levels and bone mineral density (BMD) have been inconsistent; the effects of sex, menopause, and central obesity remain unknown. We evaluated the association between serum leptin, adiponectin, and high-molecular-weight (HMW) adiponectin levels and BMD according to menopause and central obesity status in Korean women. This cross-sectional study comprised 255 women undergoing examinations at the CHA Bundang Medical Center. Participants were divided according to menopause, and central obesity status...
November 21, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27873073/mir-5100-promotes-osteogenic-differentiation-by-targeting-tob2
#15
Huaxin Wang, Yazhou Cui, Jing Luan, Xiaoyan Zhou, Chengzhi Li, Haiying Li, Liang Shi, Jinxiang Han
MicroRNAs have emerged as pivotal regulators in various physiological and pathological processes, including osteogenesis. Here we discuss the contribution of miR-5100 to osteoblast differentiation and mineralization. We found that miR-5100 was upregulated during osteoblast differentiation in ST2 and MC3T3-E1 cells. Next, we verified that miR-5100 can promote osteogenic differentiation with gain-of-function and loss-of-function experiments. Target prediction analysis and experimental validation demonstrated that Tob2, which acts as a negative regulator of osteogenesis, was negatively regulated by miR-5100...
November 21, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27873072/cinacalcet-hydrochloride-relieves-hypercalcemia-in-japanese-patients-with-parathyroid-cancer-and-intractable-primary-hyperparathyroidism
#16
Yasuhiro Takeuchi, Shunsuke Takahashi, Daishu Miura, Makoto Katagiri, Noriaki Nakashima, Hiroko Ohishi, Ryutaro Shimazaki, Yoshihiro Tominaga
Pharmacological treatment of hypercalcemia is essential for patients with parathyroid carcinoma and intractable primary hyperparathyroidism (PHPT). Use of the calcimimetic cinacalcet hydrochloride (cinacalcet) is an option to treat such patients. We investigated the efficacy and safety of cinacalcet in Japanese patients with parathyroid carcinoma and intractable PHPT. Five Japanese patients with parathyroid carcinoma and two with intractable PHPT were enrolled in an open-label, single-arm study consisting of titration and maintenance phases...
November 21, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27853940/novel-role-of-ccn3-that-maintains-the-differentiated-phenotype-of-articular-cartilage
#17
Danilo Janune, Tarek Abd El Kader, Eriko Aoyama, Takashi Nishida, Yasuhiko Tabata, Satoshi Kubota, Masaharu Takigawa
Knowledge of the microenvironment of articular cartilage in health and disease is the key to accomplishing fundamental disease-modifying treatments for osteoarthritis. The proteins comprising the CCN Family are matricellular proteins with a remarkable relevance within the context of cartilage metabolism. CCN2 displays a great capability for regenerating articular cartilage, and CCN3 has been shown to activate the expression of genes related to articular chondrocytes and to repress genes related to endochondral ossification in epiphyseal chondrocytes...
November 16, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27848009/the-effects-of-p-gp-and-cyp450-modulated-by-rifampicin-on-the-steroid-induced-osteonecrosis-of-the-femoral-head
#18
Teng Fei, Yunchao Shao, Zuoqin Yan, Liang Zhu, Shuo Li, Jianfeng Pan, Changan Guo
This study investigated the effects of rifampicin-modulated P-glycoprotein (P-gp) and cytochrome P450 (CYP450) activity on the development of steroid-induced osteonecrosis of the femoral head. Thirty-two rabbits were equally divided into four groups: control group, oral administration group, intramuscular injection group, and local release group, in which rifampicin-loaded artificial bone graft was implanted in the left femur cavity and blank bone graft was implanted in the right femur cavity. Dexamethasone was given 1 week after rifampicin administration...
November 15, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27838794/physical-activity-may-be-a-potent-regulator-of-bone-turnover-biomarkers-in-healthy-girls-during-preadolescence
#19
Antonis Kambas, Diamanda Leontsini, Alexandra Avloniti, Athanasios Chatzinikolaou, Theodoros Stampoulis, Konstantinos Makris, Dimitrios Draganidis, Athanasios Z Jamurtas, Symeon Tournis, Ioannis G Fatouros
This study investigated the effects of different levels of habitual physical activity (PA) assessed by pedometry on bone turnover markers of preadolescent girls according to a cross-sectional experimental design. Sixty prepubertal girls of similar chronological age, bone age, maturity level, and nutritional status were assigned to a low PA (LPA; n = 25), a moderate PA (MPA; n = 17), or a high PA (HPA; n = 18) group. Dual-energy X-ray absorptiometry was used to measure areal bone mineral density (BMD) and bone mineral content (BMC) of the lumbar spine (L2-L4) and dominant hip (femoral neck and trochanter)...
November 12, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27837272/body-composition-analysis-by-dxa-dual-x-ray-absorptiometry-in-brazilian-men-normative-data
#20
Marcela Ushida, Marcelo de Medeiros Pinheiro, Charlles Heldan de Moura Castro, Vera Lucia Szejnfeld
Considering ethnic and anthropometric differences, it is important to obtain specific normative data on body composition (BC) for each population. The objectives of this study were to obtain the normative curve for the BC of Brazilian men and to compare them to the North American male population. A total of 403 healthy Brazilian men 20 years and older were included in the study. Data on concomitant diseases and physical activity were investigated using a structured questionnaire. Conditions that could affect lean and fat mass were excluded...
November 11, 2016: Journal of Bone and Mineral Metabolism
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