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Journal of Bone and Mineral Metabolism

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https://www.readbyqxmd.com/read/29134283/investigation-of-the-relation-between-bone-mass-density-and-serum-preptin-levels-in-pre-and-postmenopausal-women
#1
Saeed Nazari Soltan Aahmad, Sajjad Nourollahi, Faranak Kazerouni, Nahid Kianmehr, Hamed Hajipour, Davoud Sanajou, Vahid Hosseini
Preptin is a peptide hormone co-secreted with insulin and amylin from pancreatic β cells. It has been demonstrated to have osteogenic effects both in vitro and in vivo. In the present study, serum preptin levels were measured in pre- and postmenopausal women with similar body mass indexes (BMIs) to elucidate its link with bone mineral density (BMD). Sixty women (30 premenopausal and 30 postmenopausal) with low bone mineral density were studied. The BMD scores, serum preptin levels and serum estradiol levels were measured...
November 13, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29128970/cord-serum%C3%A2-25-hydroxyvitamin-d-is-not-associated-with-cranial-anthropometrics-in-infants-up-to-6%C3%A2-months-of-age-an-odense-child-cohort-study
#2
Sissil Egge, Nikolas Christensen, Sine Lykkedegn, Tina Kold Jensen, Henrik Thybo Christesen
Skull changes are poorly described in vitamin D insufficiency [serum 25-hydroxyvitamin D (s-25(OH)D) 25-50 nmol/L]. We aimed to investigate factors associated with cranial anthropometrics in infants, especially s-25(OH)D. In infants 2.5-6 months old from the Odense Child Cohort, associations between cord and pregnancy s-25(OH)D and anterior fontanel area (n = 765), head circumference (HC, n = 1776) and head shape (n = 1527) were investigated along with other factors. Age was corrected for preterm birth...
November 11, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29124437/optimal-vitamin-d-intake-for-preventing-serum-25-hydroxyvitamin-d-insufficiency-in-young-japanese-women
#3
Hiroaki Ohta, Tatsuhiko Kuroda, Naoko Tsugawa, Yoshiko Onoe, Toshio Okano, Masataka Shiraki
Populations of East Asian countries have been known to have low calcium intakes and low serum 25(OH)D concentrations, suggesting that Ca and vitamin D (VitD)-deficiencies are commonly observed. These nutritional imbalances may lead to low peak bone mass (PBM). The low PBM seen in Ca/VitD-deficient individuals may lead to osteoporosis, as well as an increased risk of fracture. A survey was conducted in young Japanese women (n = 296, 21.2 ± 2.3 years old) on their Ca/VitD intakes and serum 25(OH)D levels, which demonstrated a significant positive correlation between VitD intake and serum 25(OH)D levels (R (2) = 0...
November 9, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29124436/postnatal-deletion-of-%C3%AE-catenin-in-osterix-expressing-cells-is-necessary-for-bone-growth-and-intermittent-pth-induced-bone-gain
#4
Caixia Yu, Miao Xuan, Mingzhu Zhang, Qianqian Yao, Keqin Zhang, Xiuzhen Zhang, Jun Guo, Lige Song
wnt/β-catenin signaling has been shown to influence bone homeostasis and is important for parathyroid hormone (PTH)-induced bone gain. To further understand the role of β-catenin in the early stages of osteoblastic lineage cells for postnatal bone homeostasis and the anabolic actions of PTH on bone, we examined mice with postnatal disruption of β-catenin in osterix-expressing cells (β-catenin KO mice) by mating floxed β-catenin mice with transgenic mice expressing cre under the control of the osterix promoter suppressible by doxycycline...
November 9, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29124435/vitamin-d-deficiency-an-unrecognized-cause-of-flank-pain
#5
Dina O Abdulazim, Mona M Salem, Mohammed Hassan, Ahmed Abdo, Esam Rashad, Usama A A Sharaf El Din
Loin pain is frequently not associated with any urinary abnormality. Musculoskeletal abnormalities are not uncommon as alternative cause of flank pain. Osteomalacia of the ribs was infrequently encountered as the cause of flank pain. Vitamin D deficiency has been reported as a common problem worldwide with special predilection to the Middle East area. In this study, we looked for vitamin D deficiency in patients with flank pain associated with tenderness over the tips of the lowermost ribs. Out of 783 patients presenting with unilateral or bilateral flank pain to a single center over a period of 3 years, 316 did not have a definite urologic cause (group B)...
November 9, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29124434/effect-of-prednisone-treatment-for-30-and-90%C3%A2-days-on-bone-metabolism-in-collagen-induced-arthritis-cia-rats
#6
Xinle Zhang, Xuna Wu, Yalin Min, Jiaqi Lu, Xuemei Zhang, Wenshuang Chen, Liyi Zou, Xiaohua Lv, Liao Cui, Bilian Xu
Glucocorticoids (GCs) are often prescribed to treat rheumatoid arthritis (RA) in the long term, but there is still controversy in the administration of GCs, mainly because of the adverse reactions such as osteoporosis. Numerous studies have demonstrated that osteoporosis could be induced by GCs in normal rats. However, few experiments have focused on whether osteoporosis could be induced or aggravated by GCs in collagen induced arthritis (CIA) rats. We have investigated bone changes in CIA rats treated with prednisone at 4...
November 9, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29124433/positive-association-between-serum-uric-acid-and-bone-mineral-density-in-chinese-type-2-diabetes-mellitus-stratified-by-gender-and-bmi
#7
Mingxin Xu, Junlei Su, Jie Hao, Ni Zhong, Zhiyin Zhang, Ran Cui, Feng Li, Chunjun Sheng, Ge Zhang, Hui Sheng, Shen Qu
Accumulating evidence has demonstrated that serum uric acid (UA), a natural powerful antioxidant, plays a beneficial role in bone health in the general population. However, few reports are available on the association between serum UA and bone in patients with type 2 diabetes mellitus (T2DM). We therefore investigated whether the benefit of serum UA for bone health was still present in those patients. 626 males and 609 postmenopausal females with T2DM were enrolled in this cross-sectional study. Serum UA concentrations and bone mineral density (BMD) measured at lumbar spine, femoral neck and total hip by dual-energy X-ray absorptiometry were obtained from all subjects...
November 9, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29116414/effect-of-denosumab-administration-on-low-bone-mineral-density-t-score-1-0-to-2-5-in-postmenopausal-japanese-women-receiving-adjuvant-aromatase-inhibitors-for-non-metastatic-breast-cancer
#8
Katsuhiko Nakatsukasa, Hiroshi Koyama, Yoshimi Ouchi, Kouichi Sakaguchi, Yoshifumi Fujita, Takayuki Matsuda, Makoto Kato, Eiichi Konishi, Tetsuya Taguchi
Although adjuvant aromatase inhibitor (AI) therapy is widely used in postmenopausal women with hormone receptor-positive breast cancer, it is known to be associated with bone loss and increased fracture risk. Denosumab, a fully human monoclonal antibody against the receptor activator of nuclear factor-κB ligand, has been shown to protect against AI-induced bone loss. However, the efficacy of denosumab in the treatment of AI-associated bone loss has not been prospectively evaluated in Japan. We prospectively monitored bone mineral density (BMD) of the lumbar spine and bilateral femoral necks in 100 postmenopausal women with hormone receptor-positive postoperative breast cancer of clinical stage I-IIIA in whom treatment with AI as adjuvant endocrine therapy was planned or had been ongoing...
November 7, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29052005/journal-of-bone-and-mineral-metabolism-best-paper-award-2017
#9
(no author information available yet)
No abstract text is available yet for this article.
October 19, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29043461/effect-of-anti-angiogenesis-induced-by-chemotherapeutic-monotherapy-chemotherapeutic-bisphosphonate-combination-therapy-and-anti-vegfa-mab-therapy-on-tooth-extraction-socket-healing-in-mice
#10
Yuri Akita, Shinichiro Kuroshima, Kazunori Nakajima, Hiroki Hayano, Riho Kanai, Muneteru Sasaki, Takashi Sawase
Osteonecrosis of the jaw (ONJ), which is a rare but severe adverse effect, mainly occurs in oncology patients receiving chemotherapeutic agents and bisphosphonates. However, the combined impact of chemotherapy and bisphosphonates on wound healing after tooth extraction remains unknown. The aim of this study was to determine the precise etiology of ONJ induced by chemotherapy and bisphosphonate combination therapy. Mice received zoledronate (ZA) monotherapy, cyclophosphamide (CY) monotherapy or CY/ZA combination therapy...
October 17, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29027045/characteristics-of-patients-with-fragility-hip-fractures-in-the-northern-kyushu-district-in-japan-a-multicenter-prospective-registry-based-on-an-electronic-data-capture-system
#11
Akiko Oyamada, Yoshihiro Matsumoto, Yoshifumi Wakata, Atsushi Kimura, Ko Ikuta, Kuniyoshi Tsuchiya, Naohisa Tayama, Shinji Tomari, Hisaaki Miyahara, Takao Mae, Hirokazu Shiraishi, Taichi Saito, Takeshi Arizono, Kozo Kaji, Taro Mawatari, Masami Fujiwara, Riku Sakimura, Kunichika Shin, Kenichi Ninomiya, Kazutoshi Nakaie, Yasuaki Antoku, Shoji Tokunaga, Naoki Nakashima, Yukihide Iwamoto, Yasuharu Nakashima
Osteoporosis has become a worldwide public health problem, in part due to the fact that it increases the risk of fragility hip fractures (FHFs). The epidemiological assessment of FHFs is critical for their prevention; however, datasets for FHFs in Japan remain scarce. This was a multicenter, prospective, observational study in the northern district of Kyushu Island. Inclusion criteria were age > 60 years with a diagnosis of FHF and acquisition of clinical data by an electronic data capture system. Of 1294 registered patients, 1146 enrolled in the study...
October 12, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29027021/bortezomib-prevents-ovariectomy-induced-osteoporosis-in-mice-by-inhibiting-osteoclast-differentiation
#12
Sung-Hyun Kim, Myoung Ok Kim, Hyo Jeong Kim, Sanjiv Neupane, Hyung Joon Kim, Ji Hye Lee, Hong-Hee Kim, Jae-Young Kim, Youngkyun Lee
Bone homeostasis is achieved through coordinated activities of bone-forming osteoblasts and bone-resorbing osteoclasts. When the balance is skewed in favor of osteoclasts due to hormonal or inflammatory issues, pathologic bone loss occurs leading to conditions such as osteoporosis, rheumatoid arthritis, and periodontitis. Bortezomib is the first in-class of proteasome inhibitors used as an anti-myeloma agent. In the present study, we show that bortezomib directly inhibited the receptor activator of nuclear factor κB ligand (RANKL)-dependent osteoclast differentiation of mouse bone marrow macrophages...
October 12, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29027020/analysis-of-ca-2-response-of-osteocyte-network-by-three-dimensional-time-lapse-imaging-in-living-bone
#13
Tomoyo Tanaka, Mitsuhiro Hoshijima, Junko Sunaga, Takashi Nishida, Mana Hashimoto, Naoya Odagaki, Ryuta Osumi, Taiji Aadachi, Hiroshi Kamioka
Osteocytes form a three-dimensional (3D) cellular network within the mineralized bone matrix. The cellular network has important roles in mechanosensation and mechanotransduction related to bone homeostasis. We visualized the embedded osteocyte network in chick calvariae and observed the flow-induced Ca(2+) signaling in osteocytes using 3D time-lapse imaging. In response to the flow, intracellular Ca(2+) ([Ca(2+)]i) significantly increased in developmentally mature osteocytes in comparison with young osteocytes in the bone matrix...
October 12, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29027016/impact-of-flow-shear-stress-on-morphology-of-osteoblast-like-idg-sw3-cells
#14
Huiyun Xu, Jing Duan, Li Ren, Pengfei Yang, Ruixin Yang, Wenbin Li, Dongdong Zhao, Peng Shang, Jean X Jiang
This study constructed an in situ cell culture, real-time observation system based originally on a microfluidic channel, and reported the morphological changes of late osteoblast-like IDG-SW3 cells in response to flow shear stress (FSS). The effects of high (1.2 Pa) and low (0.3 Pa) magnitudes of unidirectional FSS and three concentrations of extracellular Type I collagen (0.1, 0.5, and 1 mg/mL) coating on cell morphology were investigated. IDG-SW3 cells were cultured in polydimethylsiloxane microfluidic channels...
October 12, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28983705/comparative-adherence-to-weekly-oral-and-quarterly-intravenous-bisphosphonates-among-patients-with-limited-heath-literacy-who-sustained-distal-radius-fractures
#15
Young Hak Roh, Jung Ho Noh, Hyun Sik Gong, Goo Hyun Baek
Individuals with limited health literacy (HL) are less likely to obtain preventive care. We designed a study to compare adherence to weekly oral and quarterly intravenous bisphosphonates among patients with low HL. The study enrolled a total of 432 female patients who presented with a distal radius fracture caused by low-energy trauma. Participant HL was measured using the Newest Vital Sign tool, and patients were randomized to weekly oral or quarterly intravenous bisphosphonate groups. Subjects in the intravenous bisphosphonate group received intravenous injections of 3 mg ibandronate every 3 months, and those in the oral bisphosphonate group self-administered 70 mg alendronate orally once each week for 12 months...
October 5, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28983699/teriparatide-rapidly-improves-pain-like-behavior-in-ovariectomized-mice-in-association-with-the-downregulation-of-inflammatory-cytokine-expression
#16
Takayuki Dohke, Kousuke Iba, Megumi Hanaka, Kumiko Kanaya, Shunichiro Okazaki, Toshihiko Yamashita
Recent studies have indicated that teriparatide, an anti-osteoporosis agent, significantly improves back pain regardless of the presence of vertebral fracture in osteoporosis patients. The aims of this study were to examine whether teriparatide improves pain-like behavior in an ovariectomized (OVX) mouse model, and to evaluate changes in osteoclast marker levels and inflammatory cytokine expression levels induced by teriparatide treatment in bone tissue in association with improvements in pain-like behavior...
October 5, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28983668/yc-1-alleviates-bone-loss-in-ovariectomized-rats-by-inhibiting-bone-resorption-and-inducing-extrinsic-apoptosis-in-osteoclasts
#17
Jin-Wen Wang, Chin-Bin Yeh, Shao-Jiun Chou, Kuo-Cheng Lu, Tzu-Hui Chu, Wei-Yu Chen, Jui-Lin Chien, Mao-Hsiung Yen, Tien-Hua Chen, Jia-Fwu Shyu
Osteoporosis is a major health problem in postmenopausal women and the elderly that leads to fractures associated with substantial morbidity and mortality. Current osteoporosis therapies have significant drawbacks, and the risk of fragility fractures has not yet been eliminated. There remains an unmet need for a broader range of therapeutics. Previous studies have shown that YC-1 has important regulatory functions in the cardiovascular and nervous systems. Many of the YC-1 effector molecules in platelets, smooth muscle cells and neurons, such as cGMP and μ-calpain, also have important functions in osteoclasts...
October 5, 2017: Journal of Bone and Mineral Metabolism
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
#18
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
#19
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
#20
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
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