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https://www.readbyqxmd.com/read/28633866/tea-consumption-may-decrease-the-risk-of-osteoporosis-an-updated-meta-analysis-of-observational-studies
#1
REVIEW
Ming Guo, Hua Qu, Lin Xu, Da-Zhuo Shi
Several epidemiological investigations have evaluated the correlation between tea consumption and risk of osteoporosis, but the results are inconsistent. Therefore, we conducted an updated meta-analysis of observational studies to assess this association. We searched for all relevant studies including cohort, cross-sectional, and case-control studies published from database inception to July 15, 2016, using MEDLINE EMBASE, and Cochrane Library. Polled odds ratios (ORs) were calculated using the random-effect model...
June 2017: Nutrition Research
https://www.readbyqxmd.com/read/28632666/change-in-calcaneal-bone-strength-in-long-term-care-residents-treated-with-low-intensity-pulsed-ultrasound
#2
Hiroyasu Okuizumi, Kiyoshi Koyano, Kazuya Kurosawa, Naoto Kamide, Ayako Soyano
OBJECTIVE: We examined the effect of low-intensity pulsed ultrasound (LIPUS) on bone strength in osteoporotic elderly residents. MATERIALS AND METHODS: This was a randomized controlled trial. Elderly residents with osteoporosis in a long-term care facility were treated with LIPUS (oscillation frequency 100 KHz) that involved treatment of the heel bone for 2 minutes a day. The selection of the treated heel was decided randomly with a personal computer. The heel bone mineral density before and after treatment was measured by calcaneal quantitative ultrasound (GE-1000 Express)...
July 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28631706/-osteoporosis-current-state-of-the-art
#3
A F Verbovoy, A V Pashentseva, L A Sharonova
As of now, osteoporosis (OP) is one of the most important sociomedical problems because of its high prevalence and resultant disability, as well as significant mortality attributable to complications. The current strategy for providing care for patients of OP is its early diagnosis, by determining the high risk of fractures, and early pathogenetic treatment. The article gives an update on the epidemiology, risk factors, diagnosis, and treatment of OP.
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28631583/dietary-magnesium-intake-and-fracture-risk-data-from-a-large-prospective-study
#4
Nicola Veronese, Brendon Stubbs, Marco Solmi, Marianna Noale, Alberto Vaona, Jacopo Demurtas, Stefania Maggi
Research considering the relationship between dietary Mg and osteoporosis as well as fractures are sparse and conflicting. We therefore aimed to investigate Mg intake and the onset of fractures in a large cohort of American men and women involved in the Osteoarthritis Initiative over a follow-up period of 8 years. Dietary Mg intake (including that derived from supplementation) was evaluated through a FFQ at baseline and categorised using sex-specific quintiles (Q); osteoporotic fractures were evaluated through self-reported history...
June 20, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28631442/osteoblast-migration-in-vertebrate-bone
#5
Antonia Thiel, Marie K Reumann, Adele Boskey, Johannes Wischmann, Rüdiger von Eisenhart-Rothe, Philipp Mayer-Kuckuk
Bone formation, for example during bone remodelling or fracture repair, requires mature osteoblasts to deposit bone with remarkable spatial precision. As osteoblast precursors derive either from circulation or resident stem cell pools, they and their progeny are required to migrate within the three-dimensional bone space and to navigate to their destination, i.e. to the site of bone formation. An understanding of this process is emerging based on in vitro and in vivo studies of several vertebrate species. Receptors on the osteoblast surface mediate cell adhesion and polarization, which induces osteoblast migration...
June 19, 2017: Biological Reviews of the Cambridge Philosophical Society
https://www.readbyqxmd.com/read/28631236/use-of-ctx-i-and-pinp-as-bone-turnover-markers-national-bone-health-alliance-recommendations-to-standardize-sample-handling-and-patient-preparation-to-reduce-pre-analytical-variability
#6
P Szulc, K Naylor, N R Hoyle, R Eastell, E T Leary
N-terminal propeptide of type I procollagen and C-terminal telopeptide of type I collagen are the reference standards for bone turnover markers for monitoring osteoporosis treatment. We provide recommendations for standardized sample handling and encompassing aspects of preanalytical variability to improve the reproductibility of their measurements, their reliability, and clinical interpretation. The International Osteoporosis Foundation and International Federation of Clinical Chemistry bone turnover marker standards working group have identified N-terminal propeptide of type I procollagen (PINP) and C-terminal telopeptide of type I collagen (CTX-I) in the blood to be the international reference standards for bone turnover markers for the prediction of fracture risk and monitoring of osteoporosis treatment...
June 19, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28631217/24-month-open-label-teriparatide-once-weekly-efficacy-research-trial-examining-bone-mineral-density-in-subjects-with-primary-osteoporosis-and-high-fracture-risk
#7
Toshitsugu Sugimoto, Masataka Shiraki, Masao Fukunaga, Hiroshi Hagino, Teruki Sone, Tetsuo Nakano, Hideaki Kishimoto, Masako Ito, Hideki Yoshikawa, Mitsukazu Kishida, Chika Irie, Toshitaka Nakamura
INTRODUCTION: To clarify the additional efficacy and safety benefits of 24 months' treatment with the once-weekly formulation of teriparatide, which is currently used for 72 weeks. METHODS: This was a multicenter, open-label, single-arm study conducted in Japan. Subjects who were 65 years or older with prevalent vertebral fractures received once-weekly subcutaneous injection of 56.5 μg teriparatide for 24 months. The main outcome measure was percentage change from baseline in lumbar (L2-L4) BMD measured by dual-energy X-ray absorptiometry...
June 19, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28630761/partial-proximal-tibia-fractures
#8
Michael J Raschke, Christoph Kittl, Christoph Domnick
Partial tibial plateau fractures may occur as a consequence of either valgus or varus trauma combined with a rotational and axial compression component.High-energy trauma may result in a more complex and multi-fragmented fracture pattern, which occurs predominantly in young people. Conversely, a low-energy mechanism may lead to a pure depression fracture in the older population with weaker bone density.Pre-operative classification of these fractures, by Müller AO, Schatzker or novel CT-based methods, helps to understand the fracture pattern and choose the surgical approach and treatment strategy in accordance with estimated bone mineral density and the individual history of each patient...
May 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28630637/evaluation-of-circulating-srage-in-osteoporosis-according-to-bmi-adipokines-and-fracture-risk-a-pilot-observational-study
#9
Emanuela Galliera, Monica Gioia Marazzi, Carmine Gazzaruso, Pietro Gallotti, Adriana Coppola, Tiziana Montalcini, Arturo Pujia, Massimiliano M Corsi Romanelli
BACKGROUND: Osteoporosis is a systemic metabolic disease based on age-dependent imbalance between the rates of bone formation and bone resorption. Recent studies on the pathogenesis of this disease identified that bone remodelling impairment, at the base of osteoporotic bone fragility, could be related to protein glycation, in association to oxidative stress. The glycation reactions lead to the generation of glycation end products (AGEs) which, in turn, accumulates into bone, where they binds to the receptor for AGE (RAGE)...
2017: Immunity & Ageing: I & A
https://www.readbyqxmd.com/read/28629885/-prevalence-of-osteoporosis-estimation-of-probability-of-fracture-and-bone-metabolism-study-in-patients-with-newly-diagnosed-prostate-cancer-in-the-health-area-of-lugo
#10
Jonatan Miguel-Carrera, Carlos García-Porrua, Francisco Javier de Toro Santos, Jose Antonio Picallo-Sánchez
OBJECTIVE: To study the prevalence of osteoporosis and fracture probability in patients diagnosed with prostate cancer. DESIGN: Observational descriptive transversal study. SITE: Study performed from Primary Care of Lugo in collaboration with Rheumatology and Urology Services of our referral hospital. PARTICIPANTS: Patients diagnosed with prostate cancer without bone metastatic disease from January to December 2012. MAIN MEASUREMENTS: Epidemiologic, clinical, laboratory and densitometric variables involved in osteoporosis were collected...
June 16, 2017: Atencion Primaria
https://www.readbyqxmd.com/read/28629592/measurement-and-clinical-utility-of-%C3%AE-ctx-in-serum-and-plasma
#11
Stephen A P Chubb, Samuel D Vasikaran
Biochemical markers of bone turnover (BTM) are released during bone remodeling and can be measured in blood or urine as noninvasive surrogate markers for the bone remodeling rate. The C-terminal cross-linked telopeptide of type I collagen (βCTX) is released during bone resorption and is specific to bone tissue. Assays have been developed to measure βCTX in blood and in urine; most current use of βCTX measurement for research and in clinical practice is performed on a blood sample. Method-specific differences for serum and plasma βCTX have led to initiatives to standardize or harmonize βCTX commercial assays...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28629115/osthole-enhances-osteogenesis-in-osteoblasts-by-elevating-transcription-factor-osterix-via-camp-creb-signaling-in-vitro-and-in-vivo
#12
Zhong-Rong Zhang, Wing Nang Leung, Gang Li, Siu Kai Kong, Xiong Lu, Yin Mei Wong, Chun Wai Chan
Anabolic anti-osteoporotic agents are desirable for treatment and prevention of osteoporosis and fragility fractures. Osthole is a coumarin derivative extracted from the medicinal herbs Cnidium monnieri (L.) Cusson and Angelica pubescens Maxim.f. Osthole has been reported with osteogenic and anti-osteoporotic properties, whereas the underlying mechanism of its benefit still remains unclear. The objective of the present study was to investigate the osteopromotive action of osthole on mouse osteoblastic MC3T3-E1 cells and on mouse femoral fracture repair, and to explore the interaction between osthole-induced osteopromotive effect and cyclic adenosine monophosphate (cAMP) elevating effect...
June 8, 2017: Nutrients
https://www.readbyqxmd.com/read/28628032/osteocyte-specific-wnt1-regulates-osteoblast-function-during-bone-homeostasis
#13
Kyu Sang Joeng, Yi-Chien Lee, Joohyun Lim, Yuqing Chen, Ming-Ming Jiang, Elda Munivez, Catherine Ambrose, Brendan H Lee
Mutations in WNT1 cause osteogenesis imperfecta (OI) and early-onset osteoporosis, identifying it as a key Wnt ligand in human bone homeostasis. However, how and where WNT1 acts in bone are unclear. To address this mechanism, we generated late-osteoblast-specific and osteocyte-specific WNT1 loss- and gain-of-function mouse models. Deletion of Wnt1 in osteocytes resulted in low bone mass with spontaneous fractures similar to that observed in OI patients. Conversely, Wnt1 overexpression from osteocytes stimulated bone formation by increasing osteoblast number and activity, which was due in part to activation of mTORC1 signaling...
June 19, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28626166/efficacy-of-denosumab-for-osteoporosis-in-three-female-patients-with-osteogenesis-imperfecta
#14
Masashi Uehara, Yukio Nakamura, Jun Takahashi, Mikio Kamimura, Shota Ikegami, Takako Suzuki, Shigeharu Uchiyama, Tomomi Yamaguchi, Tomoki Kosho, Hiroyuki Kato
Osteogenesis imperfecta (OI) is an inherited bone disorder that causes fractures due to impaired production of collagen type I. In recent years, denosumab, a human monoclonal antibody against receptor activator of nuclear factor κB ligand (RANKL), has become widely used as an anti-osteoclastic agent for osteoporosis. This study investigated osteoporotic cases of OI to examine effects of denosumab on bone fragility. This was a retrospective, consecutive case series that included 3 female patients aged 42, 40, and 14 years, respectively...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28625602/frax-score-can-be-used-to-avoid-superfluous-dxa-scans-in-detecting-osteoporosis-in-celiac-disease-accuracy-of-the-frax-score-in-celiac-patients
#15
Raffaella Tortora, Nicola Imperatore, Pietro Capone, Nicolò Gerbino, Matilde Rea, Giovanna Affinito, Nicola Caporaso, Antonio Rispo
The Fracture Risk Assessment (FRAX) tool has been developed to estimate patients' 10-yr probability of fracture, thus establishing which patients should undergo dual-energy X-ray Absorptiometry (DXA) scan. This study aimed to evaluate if the FRAX tool can replace or optimize the use of DXA scan in celiac disease (CD). We prospectively enrolled all CD patients aged over 40 yr diagnosed at our third-level unit. At time of CD diagnosis, all patients underwent FRAX score calculation for risk of major osteoporotic and hip fractures and DXA scan (used as gold standard) to assess the accuracy of the FRAX score...
June 15, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28624872/abaloparatide-first-global-approval
#16
Matt Shirley
Abaloparatide (Tymlos™) is a synthetic peptide analogue of human parathyroid hormone-related protein that was developed by Radius Health as an osteoanabolic agent for the treatment of postmenopausal osteoporosis. Abaloparatide acts through selective activation of the parathyroid hormone type 1 receptor signalling pathway. In April 2017, subcutaneous abaloparatide received its first global approval, in the USA, for the treatment of postmenopausal women with osteoporosis at high risk for fracture, defined as a history of osteoporotic fracture, multiple risk factors for fracture, or patients who have failed or are intolerant to other available osteoporosis therapy...
June 17, 2017: Drugs
https://www.readbyqxmd.com/read/28624339/structural-parameters-of-the-proximal-femur-by-3-dimensional-dual-energy-x-ray-absorptiometry-software-comparison-with-quantitative-computed-tomography
#17
Jordi Clotet, Yves Martelli, Silvana Di Gregorio, Luis Miguel Del Río Barquero, Ludovic Humbert
Structural parameters of the proximal femur evaluate the strength of the bone and its susceptibility to fracture. These parameters are computed from dual-energy X-ray absorptiometry (DXA) or from quantitative computed tomography (QCT). The 3-dimensional (3D)-DXA software solution provides 3D models of the proximal femur shape and bone density from anteroposterior DXA scans. In this paper, we present and evaluate a new approach to compute structural parameters using 3D-DXA software. A cohort of 60 study subjects (60...
June 14, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28624135/effectiveness-of-vitamin-k2-on-osteoporosis-in-adults-with-cerebral-palsy
#18
Yuichi Kodama, Yasuhiro Okamoto, Tomohiro Kubota, Yoshifumi Hiroyama, Hiroshi Fukami, Kensuke Matsushita, Yoshifumi Kawano
BACKGROUND: Osteoporosis can lead to spontaneous fractures in adults with cerebral palsy (CP). Undercarboxylated osteocalcin (ucOC) is a useful marker for vitamin K insufficiency in osteoporosis. The primary objective of this study was to determine the effect of vitamin K2 on bone mineral density (BMD) in adults with CP and vitamin K insufficiency. METHODS: Sixteen adults, median age of 56years, with CP and osteoporosis in whom the serum ucOC concentration exceeded 4...
June 14, 2017: Brain & Development
https://www.readbyqxmd.com/read/28621568/presenting-a-method-to-improve-bone-quality-through-stimulation-of-osteoporotic-mesenchymal-stem-cells-by-low-level-laser-therapy
#19
Mohammad Bayat, Ali Jalalifirouzkouhi
OBJECTIVE: This review aims to present a method to improve bone quality through stimulation of osteoporotic mesenchymal stem cells (MSCs) by low-level laser therapy (LLLT). BACKGROUND: Osteoporosis (OP) is characterized by decreased bone mass and bone strength, which results in an increased incidence of bone fractures. These fractures often lead to additional disability and mortality. Osteoporotic MSCs have reduced osteogenic differentiation when cultured in their standard differentiation media...
June 15, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28620868/osteoporosis-in-children-with-chronic-illnesses-diagnosis-monitoring-and-treatment
#20
REVIEW
Monica Grover, Laura K Bachrach
PURPOSE OF REVIEW: Osteoporosis is an under-recognized complication of chronic illness in childhood. This review will summarize recent literature addressing the risk factors, evaluation, and treatment for early bone fragility. RECENT FINDINGS: Criteria for the diagnosis of pediatric osteoporosis include the presence of low trauma vertebral fractures alone or the combination of low bone mineral density and several long bone fractures. Monitoring for bone health may include screening for vertebral fractures that are common but often asymptomatic...
June 15, 2017: Current Osteoporosis Reports
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