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Bone and Mineral Disease

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https://www.readbyqxmd.com/read/29164325/effects-of-recreational-football-on-women-s-fitness-and-health-adaptations-and-mechanisms
#1
REVIEW
Peter Krustrup, Eva Wulff Helge, Peter R Hansen, Per Aagaard, Marie Hagman, Morten B Randers, Maysa de Sousa, Magni Mohr
The review describes the fitness and health effects of recreational football in women aged 18-65 years. The review documents that 2 × 1 h of recreational football training for 12-16 weeks causes marked improvements in maximal oxygen uptake (5-15%) and myocardial function in women. Moreover, mean arterial blood pressure was shown to decrease by 2-5 mmHg in normotensive women and 6-8 mmHg in hypertensive women. This review also show that short-term (< 4 months) and medium-term (4-16 months) recreational football training has major beneficial impact on metabolic health profile in women, with fat losses of 1-3 kg and improvements in blood lipid profile...
November 21, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29164001/paradoxical-elevation-of-serum-tracp5b-levels-despite-increase-in-lumbar-spine-bone-mineral-density-during-anti-tnf%C3%AE-therapy-in-patients-with-inflammatory-rheumatic-disease-a-2-year-prospective-assessment-of-bone-mass-bone-metabolism-and-the-trabecular-bone
#2
Éric Toussirot, Laurent Mourot, Barbara Dehecq, Fabrice Michel, Daniel Wendling, Émilie Grandclément, Gilles Dumoulin
Objective: To examine the impact of long-term anti-TNFα therapy on bone mass, bone metabolism, and the trabecular bone score (TBS) in patients with rheumatoid arthritis (RA) or ankylosing spondylitis (AS). Material and Methods: In eight patients with RA and 12 with AS, bone mineral densities (BMDs) of the lumbar spine (LS), left and right femoral neck, and total skeleton were measured using dual X-ray absorptiometry at baseline and then at 6, 12, and 24 months after anti TNFα therapy...
September 2017: European Journal of Rheumatology
https://www.readbyqxmd.com/read/29163188/elevated-levels-of-peripheral-kynurenine-decrease-bone-strength-in-rats-with-chronic-kidney-disease
#3
Bartlomiej Kalaska, Krystyna Pawlak, Tomasz Domaniewski, Ewa Oksztulska-Kolanek, Beata Znorko, Alicja Roszczenko, Joanna Rogalska, Malgorzata M Brzoska, Pawel Lipowicz, Michal Doroszko, Anna Pryczynicz, Dariusz Pawlak
The diagnosis and treatment of bone disorders in patients with chronic kidney disease (CKD) represent a clinical challenge. CKD leads to mineral and bone complications starting early in the course of renal failure. Recently, we have observed the positive relationship between intensified central kynurenine turnover and bone strength in rats with subtotal 5/6 nephrectomy (5/6 Nx)-induced CKD. The aim of the present study was to determine the association between peripheral kynurenine pathway metabolites and bone strength in rats with 5/6 Nx-induced CKD...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29162238/nanostructure-in-the-trabecular-bone-of-postmenopausal-women-mechanical-and-chemical-analysis
#4
Manuel Toledano, Raquel Osorio, Enrique Guerado, Enrique Caso, Estrella Osorio
The possibility of diagnosis and prediction of multiple disorders in trabecular bone through nano-biomechanics and chemical analysis are summarized. Improvements to the understating of the compositional contributors of bone mineral and organic components to mechanical competence are crucial. Viscoelastic properties and Raman characterization have been used to evaluate possible alterations of the trabecular bone associated with aging, disease, or injury. In this study, the trabecular bone of postmenopausal women has been analyzed throughout...
November 2017: Injury
https://www.readbyqxmd.com/read/29161692/association-between-extreme-values-of-markers-of-chronic-kidney-disease-mineral-and-bone-disorder-and-5-year-mortality-among-prevalent-hemodialysis-patients
#5
Jin-Gang Zhu, Jin-Bor Chen, Ben-Chung Cheng, Chih-Hsiung Lee, Gang Long, Yu-Shu Chien
BACKGROUND/AIMS: We examined the association between markers of chronic kidney disease - mineral and bone disorder (CKD-MBD) and mortality in hemodialysis (HD) patients. METHODS: We retrospectively reviewed the association between markers of CKD-MBD and mortality in 1,126 HD patients from 2009 to 2013 with baseline (B), time-average (TA), and time-dependent (TD) Cox regression models. RESULTS: Hypercalcemia (10.9-11.9 mg/dL) indicated an increased risk of all-cause mortality (TA: hazard ratio [HR] 3...
November 22, 2017: Blood Purification
https://www.readbyqxmd.com/read/29160901/dietary-advanced-glycation-end-products-have-sex-and-age-dependent-effects-on-vertebral-bone-microstructure-and-mechanical-function-in-mice
#6
Svenja Illien-Jünger, Paolo Palacio-Mancheno, William F Kindschuh, Xue Chen, Grazyna E Sroga, Deepak Vashishth, James C Iatridis
Back pain is a leading cause of global disability that can arise from vertebral fracture and osteoporosis. While poor general health and obesity are among the strongest risk factors for back pain, there is remarkably little known about how diet influences spinal diseases. Advanced glycation endproducts (AGEs) are implicated in increased fracture risk, yet no studies investigated how dietary AGEs affect spinal health. We tested the hypothesis that high dietary AGE ingestion will diminish vertebral structure and function in a sex- and age-dependent manner...
November 21, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29158666/tenofovir-alafenamide-in-the-treatment-of-chronic-hepatitis-b-design-development-and-place-in-therapy
#7
REVIEW
Eiichi Ogawa, Norihiro Furusyo, Mindie H Nguyen
Tenofovir alafenamide (TAF), a novel prodrug of tenofovir (TFV), has been approved for the treatment of chronic hepatitis B virus (HBV) infection. TAF has been shown to be a potent inhibitor of HBV replication at a low dose, with high intracellular concentration and more than 90% lower systemic TFV concentration than tenofovir disoproxil fumarate (TDF). In two randomized, double-blind, multinational, Phase 3, non-inferiority trials for hepatitis B e antigen (HBeAg)-positive and -negative patients (primary analysis: 48 weeks), TAF 25 mg orally once-daily was not inferior to TDF 300 mg in achieving an HBV DNA level <29 IU/mL at week 48...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29155868/tocilizumab-potentially-prevents-bone-loss-in-patients-with-anticitrullinated-protein-antibody-positive-rheumatoid-arthritis
#8
Yi-Ming Chen, Hsin-Hua Chen, Wen-Nan Huang, Tsai-Ling Liao, Jun-Peng Chen, Wen-Cheng Chao, Ching-Tsai Lin, Wei-Ting Hung, Chia-Wei Hsieh, Tsu-Yi Hsieh, Yi-Hsing Chen, Der-Yuan Chen
Rheumatoid arthritis (RA) is associated with a high risk of osteoporosis and fracture. Interleukin (IL)-6 inhibitors may suppress osteoclast activation. Anticitrullinated protein antibody (ACPA) titers are inversely associated with bone mineral density (BMD). However, the differential effect of ACPA on bone turnover marker (BTM) and BMD changes after IL-6 inhibition remains unclear. This prospective study recruited patients with active RA with inadequate response to methotrexate or biologics. BMD was measured before and after 2-year tocilizumab (TCZ) treatment...
2017: PloS One
https://www.readbyqxmd.com/read/29155253/the-association-of-inflammatory-bowel-disease-and-immediate-postoperative-outcomes-following-lumbar-fusion
#9
Joseph E Tanenbaum, Stephanie T Kha, Edward C Benzel, Michael P Steinmetz, Thomas E Mroz
BACKGROUND CONTEXT: The United States Centers for Disease Control estimates the prevalence of inflammatory bowel disease (IBD) at over 3.1 million people. As diagnostic techniques and treatment options for IBD improve, the prevalence of IBD is expected to increase. For spine surgeons, patients with IBD have a unique complication profile because IBD patients may present with poor nutritional status and because the medications used to manage IBD have been associated with poor vertebral bone mineralization and immunosuppression...
November 15, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29154967/bone-marrow-mechanotransduction-in-porcine-explants-alters-kinase-activation-and-enhances-trabecular-bone-formation-in-the-absence-of-osteocyte-signaling
#10
Kimberly J Curtis, Thomas R Coughlin, Devon E Mason, Joel D Boerckel, Glen L Niebur
Bone is a dynamic tissue that can adapt its architecture in response to mechanical signals under the control of osteocytes, which sense mechanical deformation of the mineralized bone. However, cells in the marrow are also mechanosensitive and may contribute to load-induced bone adaptation, as marrow is subjected to mechanical stress during bone deformation. We investigated the contribution of mechanotransduction in marrow cells to trabecular bone formation by applying low magnitude mechanical stimulation (LMMS) to porcine vertebral trabecular bone explants in an in situ bioreactor...
November 14, 2017: Bone
https://www.readbyqxmd.com/read/29153145/ketteler-m-block-ga-evenepoel-p-et%C3%A2-al-executive-summary-of-the-2017-kdigo-chronic-kidney-disease-mineral-and-bone-disorder-ckd-mbd-guideline-update-what-s-changed-and-why-it-matters-kidney%C3%A2-int-2017-92-26-36
#11
https://www.readbyqxmd.com/read/29150107/pre-sarcopenia-and-bone-mineral-density-in-adults-submitted-to-hematopoietic-stem-cell-transplantation
#12
Cristiane Pavan Pereira, Denise Johnsson Campos Amaral, Vaneuza Araujo Moreira Funke, Victória Zeghbi Cochenski Borba
BACKGROUND: The aim of this study was to evaluate the prevalence of pre-sarcopenia and bone mineral density after hematopoietic stem cell transplantation. METHODS: The study group consisted of over 18-year-old patients who had been submitted to allogeneic transplantation at least one year previously. Patients and healthy controls were matched by sex, ethnic background, age, and body mass index. Body composition and bone mineral density were measured by dual-energy X-ray absorptiometry...
October 2017: Revista Brasileira de Hematologia e Hemoterapia
https://www.readbyqxmd.com/read/29145609/the-differential-effects-of-hiv-and-hcv-on-bone-micro-architecture-and-fracture-risk
#13
Roger J Bedimo, Beverley Adams-Huet, John Poindexter, Geri Brown, Irfan Farukhi, Rosinda Castanon, Diana Turner, Teresa Moore, Pablo Tebas, Naim M Maalouf
Background: HIV/HCV co-infected subjects have a significantly greater osteoporotic fracture risk than HIV-infected, despite the fact that HIV/HCV co-infection has not been associated with lower bone mineral density (BMD) than HIV or HCV alone. We evaluated if changes in bone microarchitecture , measured by trabecular bone score (TBS) could explain these differences. Design: We performed a prospective, cross-sectional cohort study of virologically suppressed HIV, untreated HCV, HIV/HCV co-infected and non-infected controls...
November 14, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29144803/endocrine-manifestations-of-primary-hyperoxaluria
#14
Shatha Murad, Yuval Eisenberg
OBJECTIVE: Primary hyperoxaluria type 1 (PH1) is a rare metabolic disorder of oxalate overproduction. It is associated with urolithiasis and nephrocalcinosis which progress to ESRD and systemic oxalosis. As oxalate deposits in tissues, non-parathyroid hormone (nonPTH) mediated hypercalcemia, oxalate osteopathy, primary hypothyroidism and primary hypogonadism develop. In this review, we will present a case of PH1 and provide an overview of this clinical entity and its endocrine manifestations...
November 16, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/29142975/sclerostin%C3%A2-a-debutant-on-the-autosomal-dominant-polycystic-kidney-disease-scene
#15
Magdalena Jankowska, Mathias Haarhaus, Abdul Rashid Qureshi, Bengt Lindholm, Pieter Evenepoel, Peter Stenvinkel
Introduction: Autosomal dominant polycystic kidney disease (ADPKD) is a genetic disease originating from a mutation in genes encoding polycystin 1 and 2. Recent evidence suggests that these polycystins mediate mechanosensation not only in the primary cilium of kidney cells but also in bone cells. The Wnt/β-catenin signaling pathway plays a central role in mechanotransduction in osteocytes. Mechanical unloading causes the upregulation of the Wnt inhibitor sclerostin. We tested the hypothesis that ADPKD associates with higher circulating sclerostin levels...
May 2017: KI Reports
https://www.readbyqxmd.com/read/29137893/advances-in-the-evaluation-of-bone-health-in-kidney-transplant-patients
#16
María José Pérez-Sáez, Daniel Prieto-Alhambra, Adolfo Díez-Pérez, Julio Pascual
Bone disease related to chronic kidney disease and, particularly, to kidney transplant patients is a common cause or morbidity and mortality, especially due to a higher risk of osteoporotic fractures. Despite the fact that this has been known for decades, to date, an appropriate diagnostic strategy has yet to be established. Apart from bone biopsy, which is invasive and scarcely used, no other technique is available to accurately establish the risk of fracture in kidney patients. Techniques applied to the general population, such as bone densitometry, have not been subjected to sufficient external validation and their use is not systematic...
November 11, 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/29137726/mineralized-collagen-fibril-network-spatial-arrangement-influences-cortical-bone-fracture-behavior
#17
Yaohui Wang, Ani Ural
Bone is a hierarchical material exhibiting different fracture mechanisms at each length scale. At the submicroscale, the bone is composed of mineralized collagen fibrils (MCF). At this scale, the fracture processes in cortical bone have not been extensively studied in the literature. In this study, the influence of MCF size and orientation on the fracture behavior of bone under both transverse and longitudinal loading was investigated using novel 3D models of MCF networks with explicit representation of extra-fibrillar matrix...
November 4, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29137107/effect-of-lanthanum-carbonate-on-coronary-artery-calcification-and-bone-mineral-density-in-maintenance-hemodialysis-patients-with-diabetes-complicated-with-adynamic-bone-disease-a-prospective-pilot-study
#18
Chunhua Zhang, Shixiang Wang, Sumei Zhao, Xiaodong Zhang
BACKGROUND: The incidence of adynamic bone disease (ABD) is increasing. Coronary artery calcification (CAC) may be severe in patients with ABD on maintenance hemodialysis (MHD). The aim of this study was to evaluate the effect of lanthanum carbonate (LC) on CAC and bone mineral density (BMD) in MHD patients with diabetes complicated with ABD. METHODS: A total of 92 MHD cases were divided into the calcium carbonate (CC) and LC groups. Primary outcome measure was the changes in the degree of CAC score (CACS) and BMD in forearm from baseline to 12 months...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29137106/trabecular-bone-score-as-a-supplementary-tool-for-the-discrimination-of-osteoporotic-fractures-in-postmenopausal-women-with-rheumatoid-arthritis
#19
Yong Jun Choi, Yoon-Sok Chung, Chang-Hee Suh, Ju-Yang Jung, Hyoun-Ah Kim
Rheumatoid arthritis (RA) is a risk factor for bone fragility, and its effect on fracture risk is independent of bone mineral density (BMD). The trabecular bone score (TBS) is a new indirect parameter of bone quality. In this study, BMD and the TBS were compared between female postmenopausal RA patients with and those without vertebral fractures (VFs).This study had a cross-sectional design. Two hundred seventy-nine postmenopausal women with RA aged 50 years or older were included in this study. TBS measurements were performed on the same vertebrae as those for the BMD measurements...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29137040/a-multicenter-open-label-phase-iii-study-of-abcertin-in-gaucher-disease
#20
Beom Hee Lee, Ahmed Fathy Abdalla, Jin-Ho Choi, Amal El Beshlawy, Gu-Hwan Kim, Sun Hee Heo, Ahmed Megahed Hassan Megahed, Mona Abdel Latif Elsayed, Tarik El-Sayed Mohammad Barakat, Khaled Mohamed Abd El-Azim Eid, Mona Hassan El-Tagui, Mona Mohamed Hamdy Mahmoud, Ekram Fateen, June-Young Park, Han-Wook Yoo
BACKGROUND: Gaucher disease (GD) is caused by a deficiency in the lysosomal enzyme glucocerebrosidase. Enzyme replacement therapy (ERT) is recommended for clinical improvement. METHODS: The efficacy and safety of a new imiglucerase, Abcertin, were assessed in 7 Egyptian patients with treatment-naïve type 1 GD. Each patient was administered a biweekly 60 U/kg dose of Abcertin for 6 months. The primary endpoint was the change in hemoglobin concentration. The secondary endpoints were changes from baseline in platelet counts, spleen and liver volumes, biomarker levels, skeletal parameters, and bone mineral density...
November 2017: Medicine (Baltimore)
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