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https://www.readbyqxmd.com/read/28432640/osteoporosis-bone-mineral-density-and-ckd-mbd-treatment-considerations
#1
REVIEW
Jordi Bover, Lucía Bailone, Víctor López-Báez, Silvia Benito, Paola Ciceri, Andrea Galassi, Mario Cozzolino
Osteoporosis and chronic kidney disease (CKD) have both independently important potential impact on bone health. A significant number of patients with CKD stages 3a-5D have been shown to have low bone mineral density (BMD), leading to a strikingly elevated risk of fractures (mainly hip fractures) and higher associated morbidity and mortality. Mechanical properties of bone beyond age and menopausal status are additionally affected by intrinsic uremic factors. Therefore, we review in this article not only general concepts of osteoporosis and related consequences, but also the diagnostic and therapeutic implications of low BMD and bone fractures in CKD, beyond increased vascular calcification...
April 21, 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/28432597/t-regulatory-cells-in-bone-remodelling
#2
REVIEW
Aline Bozec, Mario M Zaiss
PURPOSE OF THE REVIEW: In this review, we present the role of regulatory T (Treg) cells in bone remodelling and bone-related disease such as osteoporosis or inflammatory bone loss. We also discuss the cellular and molecular mechanism how Treg cells regulate osteoclastogenesis. RECENT FINDINGS: Treg cells could regulate osteoclastogenesis by secreting TGF-β and IL-10 as well as IL-4 cytokines. Moreover, Treg cells can additionally regulate osteoclast differentiation, in a cell-to-cell contact via the cytotoxic T lymphocyte antigen (CTLA-4)...
April 21, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28432596/exploiting-the-wnt-signaling-pathway-for-clinical-purposes
#3
REVIEW
Mark L Johnson, Robert R Recker
PURPOSE OF REVIEW: The goal of this paper is to evaluate critically the literature published over the past 3 years regarding the Wnt signaling pathway. The Wnt pathway was found to be involved in bone biology in 2001-2002 with the discovery of a (G171V) mutation in the lipoprotein receptor-related protein 5 (LRP5) that resulted in high bone mass and another mutation that completely inactivated Lrp5 function and resulted in osteoporosis pseudoglioma syndrome (OPPG). The molecular biology has been complex, and very interesting...
April 21, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28432574/a-critical-appraisal-of-the-quality-of-adult-dual-energy-x-ray-absorptiometry-guidelines-in-osteoporosis-using-the-agree-ii-tool-an-euroaim-initiative
#4
Carmelo Messina, Bianca Bignotti, Alberto Bazzocchi, Catherine M Phan, Alberto Tagliafico, Giuseppe Guglielmi, Francesco Sardanelli, Luca Maria Sconfienza
OBJECTIVES: Dual energy X-ray absorptiometry (DXA) is the most widely used technique to measure bone mineral density (BMD). Appropriate and accurate use of DXA is of great importance, and several guidelines have been developed in the last years. Our aim was to evaluate the quality of published guidelines on DXA for adults. METHODS: Between June and July 2016 we conducted an online search for DXA guidelines, which were evaluated by four independent readers blinded to each other using the AGREE II instrument...
April 21, 2017: Insights Into Imaging
https://www.readbyqxmd.com/read/28432379/high-resolution-tomography-based-quantification-of-cortical-porosity-and-cortical-thickness-at-the-surgical-neck-of-the-humerus-during-aging
#5
Tobias Helfen, Christoph M Sprecher, Ursula Eberli, Boyko Gueorguiev, Peter E Müller, Robert G Richards, Florian Schmidutz
Fractures of the proximal humerus are highly related to age and osteoporotic bone remodeling. Previous studies have highlighted the cortex as a major side of the bone loss, but the microstructural changes of the humerus have not been evaluated entirely. Sixty-four (n = 64) humeri of a representative collective (18-100 years) were scanned with high-resolution peripheral quantitative computed tomography (82 µm). Bone mineral density (BMD), trabecular bone volume fraction (Tb.BV/TV), cortical thickness (Ct...
April 21, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28431912/osteosarcopenic-obesity-prevalence-and-relation-with-frailty-and-physical-performance-in-middle-aged-and-older-women
#6
Claudia Szlejf, Lorena Parra-Rodríguez, Oscar Rosas-Carrasco
OBJECTIVES: The aims of this study were to determine the prevalence of osteosarcopenic obesity (OSO) and to investigate its association with frailty and physical performance in Mexican community-dwelling middle-aged and older women. DESIGN: Cross-sectional analysis of a prospective cohort. SETTING: The FraDySMex study, a 2-round evaluation of community-dwelling adults from 2 municipalities in Mexico City. PARTICIPANTS: Participants were 434 women aged 50 years or older, living in the designated area in Mexico City...
April 18, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28431765/immune-modulation-by-vitamin-d-special-emphasis-on-its-role-in-prevention-and-treatment-of-cancer
#7
REVIEW
Franco Pandolfi, Laura Franza, Claudia Mandolini, Pio Conti
PURPOSE: Vitamin D has been known to be involved in mineral and bone homeostasis for many years. In the past its main use was in treating osteoporosis and rickets. In recent years it was found that vitamin D is an immune-modulating agent and may also have a role in several diseases, including autoimmune diseases. The immune-modulating effects appear to be mediated by vitamin D interaction with the vitamin D receptor (VDR) that has transcriptional effects and is expressed on various cell types, especially those of the immune system...
April 18, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28431174/opportunities-for-exercise-during-pullet-rearing-part-ii-long-term-effects-on-bone-characteristics-of-adult-laying-hens-at-the-end-of-lay
#8
T M Casey-Trott, D R Korver, M T Guerin, V Sandilands, S Torrey, T M Widowski
Osteoporosis in laying hens has been a production and welfare concern for several decades. The objective of this study was to determine whether differing opportunities for exercise during pullet rearing influences long-term bone quality characteristics in end-of-lay hens. A secondary objective was to assess whether differing opportunities for exercise in adult housing systems alters bone quality characteristics in end-of-lay hens. Four flock replicates of 588 Lohmann Selected Leghorn-Lite pullets were reared in either conventional cages (Conv) or an aviary rearing system (Avi) and placed into conventional cages (CC), 30-bird furnished cages (FC-S), or 60-bird furnished cages (FC-L) for adult housing...
April 18, 2017: Poultry Science
https://www.readbyqxmd.com/read/28429905/maintenance-vitamin-d3-dosage-requirements-in-chinese-women-with-post-menopausal-osteoporosis-living-in-the-tropics
#9
Yogeswari Venugopal, Sharifah F Wan Muhamad Hatta, Nurbazlin Musa, Siti Abdul Rahman, Jeyakantha Ratnasingam, Sharmila Sunita Paramasivam, Lee Ling Lim, Luqman Ibrahim, Karen Choong, Alexander Tb Tan, Karuthan Chinna, Siew Pheng Chan, Shireene R Vethakkan
BACKGROUND AND OBJECTIVES: Vitamin D3 (cholecalciferol) dose required to maintain sufficiency in non- Caucasian women with postmenopausal osteoporosis (PMO) inthe tropics has not been well studied. Some guidelines mandate 800-1000 IU vitamin D/day but the Endocrine Society (US) advocates 1500-2000 IU/day to maintain 25-hydroxyvitamin-D (25(OH)D) concentration at >75 nmol/L. We aimed to establish oral cholecalciferol dose required to maintain 25(OH)D concentration at >75 nmol/L in PMO Chinese Malaysian women, postulating lower dose requirements amongst light-skinned subjects in the tropics...
May 2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28429557/use-of-dual-energy-x-ray-absorptiometry-the-trabecular-bone-score-and-quantitative-computed-tomography-in-the-evaluation-of-chronic-kidney-disease-mineral-and-bone-disorders
#10
Nicholas Pocock
In subjects with chronic kidney disease (CKD) who suffer a minimal trauma fracture, the problem is to differentiate between osteoporosis and the various forms of renal bone disease associated with CKD-mineral and bone disorder. This problem is exacerbated by the fact that renal osteodystrophy may coexist with osteoporosis. The World Health Organization's bone mineral density (BMD) criteria for osteopenia ( -2.5 < T-score < -1.0) and osteoporosis (a T-score ≤ -2.5) may be used in patients with CKD stages 1-3...
March 2017: Nephrology
https://www.readbyqxmd.com/read/28429555/management-of-mineral-and-bone-disorders-in-renal-transplant-recipients
#11
Matthew J Damasiewicz, Peter R Ebeling
The management of post-transplantation bone disease is a complex problem that remains under-appreciated in clinical practice. In these patients, pre-existing metabolic bone disorder is further impacted by the use of immunosuppressive medications (glucocorticoids and calcineurin-inhibitors), variable post-transplantation renal allograft function and post-transplantation diabetes mellitus. The treatment of post-transplantation bone loss should begin pre-transplantation. All patients active on transplant waiting lists should be screened for bone disease...
March 2017: Nephrology
https://www.readbyqxmd.com/read/28429547/the-use-of-bone-turnover-markers-in-chronic-kidney-disease-mineral-and-bone-disorders
#12
Cherie Chiang
Bone turnover markers assist in fracture risk prediction, management and monitoring of osteoporosis in patients without chronic kidney disease (CKD). The use in CKD-mineral bone disorder (MBD) has been limited as many of these markers and breakdown products are renally excreted, including the most commonly used and well standardized procollagen type I N propeptide and C-terminal cross-linking telopeptide of type I collagen. Of the markers unaffected by renal function, bone specific alkaline phosphatase is associated with mortality and fracture rate in CKD subjects and is now available on several automated analysers...
March 2017: Nephrology
https://www.readbyqxmd.com/read/28429336/effects-of-a-curcumin-based-supplementation-in-asymptomatic-subjects-with-low-bone-density-a-preliminary-24-week-supplement-study
#13
A Riva, S Togni, L Giacomelli, F Franceschi, R Eggenhoffner, B Feragalli, G Belcaro, M Cacchio, H Shu, M Dugall
OBJECTIVE: Osteopenia is a chronic bone condition characterized by decreased calcification, density, or bone mass that, if untreated, can lead to osteoporosis and bone fractures. Although its increasing prevalence, nowadays osteopenia is not adequately prevented and managed. In this study, we evaluated the efficacy, in term of changes in bone density, and safety of an oral formulation based on turmeric phytosome (Meriva®), in subjects suffering from low bone density. PATIENTS AND METHODS: 57 otherwise healthy subjects with low bone density were enrolled in this pilot, supplement study...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28428919/tibial-bone-grafting-for-wrist-reconstruction
#14
Schneider K Rancy, Stephanie D Malliaris, Scott W Wolfe
Background Iliac crest bone graft harvesting is routinely performed for upper extremity orthopedic procedures despite high complication rates associated with sensory nerve injury, hematoma, chronic pain, and fracture. Description of Technique Cancellous bone graft is harvested from the proximal tibia using a medial approach, minimizing donor site morbidity. Patients and Methods A retrospective review was undertaken of 14 patients who underwent cancellous proximal tibia bone graft harvesting to augment healing of wrist reconstruction, with 2 months minimum follow-up...
May 2017: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/28428669/risk-factors-for-osteoporosis-in-postmenopausal-women
#15
Radojka Bijelic, Snjezana Milicevic, Jagoda Balaban
INTRODUCTION: Scientific studies show that many factors related to lifestyles affect the reduction of bone mineral density and osteoporosis in postmenopausal women. GOAL: The goal of this study was to determine whether smoking, drinking coffee and alcohol in menopausal women contribute to the reduction of bone mass and osteoporosis, as well as the impact of physical activity on bone mass. MATERIAL AND METHODS: The study was carried out as case study and matched controls...
February 2017: Medical Archives
https://www.readbyqxmd.com/read/28428645/effect-of-tailored-educational-intervention-to-improve-self-care-maintenance-and-quality-of-life-in-postmenopausal-osteoporotic-women-after-a-fragility-fracture-the-guardian-angel-reg-study
#16
Emanuela Basilici Zannetti, Fabio D'Agostino, Noemi Cittadini, Maurizio Feola, Annalisa Pennini, Cecilia Rao, Ercole Vellone, Umberto Tarantino, Rosaria Alvaro
Osteoporosis has a significant impact on affected patients. Healthcare providers should encourage postmenopausal women to improve self-care maintenance behaviors and quality of life following a fragility fracture. The aims of this study were to a) develop two new instruments for measuring, respectively, self-care maintenance and quality of life, in postmenopausal women with osteoporosis; b) evaluate the effectiveness of a tailored educational intervention to improve self-care maintenance and quality of life after a fragility fracture in postmenopausal women...
January 2017: Igiene e Sanità Pubblica
https://www.readbyqxmd.com/read/28428078/kinetic-reconstruction-reveals-time-dependent-effects-of-romosozumab-on-bone-formation-and-osteoblast-function-in-vertebral-cancellous-and-cortical-bone-in-cynomolgus-monkeys
#17
Rogely Waite Boyce, Qing-Tian Niu, Michael S Ominsky
Romosozumab, a humanized monoclonal sclerostin antibody under development for the treatment of osteoporosis, has a unique mechanism of action on bone-increasing bone formation and decreasing bone resorption. The effects on bone formation are transient, eliciting a rapid increase in bone formation that attenuates with continued treatment. Although bone formation attenuates, bone mineral density (BMD) continues to increase. To explore potential tissue-level mechanisms that could contribute to a progressive increase in spine BMD, we used kinetic reconstruction techniques to examine the effects of romosozumab on modeling and remodeling units in vertebral cancellous bone from adult cynomolgus monkeys administered romosozumab for 10 and 28weeks...
April 18, 2017: Bone
https://www.readbyqxmd.com/read/28427810/synthesis-of-novel-5-6-dehydrokawain-analogs-as-osteogenic-inducers-and-their-action-mechanisms
#18
Momochika Kumagai, Keisuke Nishikawa, Takashi Mishima, Izumi Yoshida, Masahiro Ide, Keiko Koizumi, Munetomo Nakamura, Yoshiki Morimoto
An imbalance between bone resorption by osteoclasts and bone formation by osteoblasts can cause bone loss and bone-related disease. In a previous search for natural products that increase osteogenic activity, we found that 5,6-dehydrokawain (1) from Alpinia zerumbet promotes osteoblastogenesis. In this study, we synthesized and evaluated series of 5,6-dehydrokawain analogs. Our structure-activity relationships revealed that alkylation of para or meta position of aromatic ring of 1 promote osteogenic activity...
April 6, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28427808/rapid-microwave-accelerated-synthesis-and-anti-osteoporosis-activities-evaluation-of-morusin-scaffolds-and-morusignin-l-scaffolds
#19
Bing Lin, Jun-Fei Huang, Xiong-Wei Liu, Xi-Tao Ma, Xiong-Li Liu, Yi Lu, Ying Zhou, Feng-Min Guo, Ting-Ting Feng
Described herein is a facile and efficient methodology toward the synthesis of Morusin scaffolds and Morusignin L scaffolds 4-9 and 12via a novel three-step approach (Michael addition or prenylation, cyclization and cyclization) and use a rapid, microwave-accelerated cyclization as the key step. Furthermore, their biological activities have been preliminarily demonstrated by in vitro evaluation for anti-osteoporosis activity. These Morusin, Morusignin L and newly synthesized compounds 5b, 6a, 8e, 8f greatly exhibited the highest potency, especially at the 10(-5)mol/L (P<0...
April 9, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28427101/tanshinol-alleviates-osteoporosis-and-myopathy-in-glucocorticoid-treated-rats
#20
Guanghua Chen, Xinle Zhang, Han Lin, Guizhi Huang, Yahui Chen, Liao Cui
Tanshinol is a major water-soluble active component of Salvia miltiorrhiza. In this study, we aimed to investigate whether tanshinol has potential therapeutic effects against glucocorticoid-induced osteoporosis and glucocorticoid-induced myopathy. Ninety-six female Sprague-Dawley rats were randomly assigned to five groups: a control group, a model group, and three model groups treated with 25 or 50 mg/kg of tanshinol, or calcitriol. All model groups received prednisone acetate for 90 days to induce glucocorticoid-induced osteoporosis...
April 20, 2017: Planta Medica
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