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Osteoporosis calcium

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https://www.readbyqxmd.com/read/28339498/enhancement-of-osteogenic-differentiation-of-rat-adipose-tissue-derived-mesenchymal-stem-cells-by-zinc-sulphate-under-electromagnetic-field-via-the-pka-erk1-2-and-wnt-%C3%AE-catenin-signaling-pathways
#1
Ezzatollah Fathi, Raheleh Farahzadi
Zinc ion as an essential trace element and electromagnetic fields (EMFs) has been reported to be involved in the regulation of bone metabolism. The aim of this study was to elucidate the effects of zinc sulphate (ZnSO4) on the osteogenic differentiation of adipose tissue-derived mesenchymal stem cells (ADSCs) in the presence of EMF as a strategy in osteoporosis therapy. Alkaline phophatase (ALP) activity measurement, calcium assay and expression of several osteoblastic marker genes were examined to assess the effect of ZnSO4 on the osteogenic differentiation of ADSCs under EMF...
2017: PloS One
https://www.readbyqxmd.com/read/28326297/coronary-artery-calcium-score-and-bone-metabolism-a-pilot-study-in-postmenopausal-women
#2
Pooneh Salari, Abbasali Keshtkar, Shapour Shirani, Leila Mounesan
BACKGROUND: Since 1991 many studies evaluated the link between cardiovascular diseases and osteoporosis, two age-related conditions, but the main common pathologic pathway has not been determined yet. The histological similarity between arterial calcified plaque and bone matrix and involvement of similar cells and mediators provide a special field of research. Therefore in the present study, we aimed to evaluate the relationship between coronary artery calcium score (CACS) as a surrogate marker of atherosclerosis and bone mediators and parameters in postmenopausal women...
February 2017: Journal of Bone Metabolism
https://www.readbyqxmd.com/read/28324248/incorporation-of-flaxseed-flour-as-a-dietary-source-for-ala-increases-bone-density-and-strength-in-post-partum-female-rats
#3
Danielle Cavalcante Ribeiro, Aline D'Avila Pereira, Fernanda Carvalho de Santana, Jorge Mancini-Filho, Eduardo Moreira da Silva, Carlos Alberto Soares da Costa, Gilson Teles Boaventura
In women, bone mass undergoes changes during pregnancy and the postpartum period, which has a risk for subsequent development of osteoporosis. Thus, the present study aims to evaluate the effects of flaxseed flour in femur quality during post-weaning of dam rats. After weaning, the rats were divided into control (C, n = 7) and experimental (F, n = 7) groups treated with a diet containing 25 g of flaxseed flour in the lactating period and 15 g in the maintenance period. After 51 days post-partum, serum hormone, fatty acids composition, bone compartments, computed tomography, and biomechanical analyses were determined...
March 21, 2017: Lipids
https://www.readbyqxmd.com/read/28324039/unique-regenerative-mechanism-to-replace-bone-lost-during-dietary-bone-depletion-in-weanling-mice
#4
Matilda H-C Sheng, Kin-Hing William Lau, Ram Lakhan, Abu Shufian Ishtiaq Ahmed, Charles H Rundle, Patra Biswanath, David J Baylink
This study was undertaken to determine the mechanism whereby calcitropic hormones and mesenchymal stem cell progeny changes involved in bone repletion, a regenerative bone process that restores the bone lost to calcium deficiency. To initiate depletion, weanling mice with a mixed C57BL/6 (75%) and CD1 (25%) genetic background were fed a calcium-deficient diet (0.01%) for 14 days. For repletion, the mice were re-fed a control diet containing 1.2% calcium for 14 days. Depletion decreased plasma calcium and increased plasma PTH, 1,25(OH)2D, and CTX...
January 26, 2017: Endocrinology
https://www.readbyqxmd.com/read/28315346/inhibition-of-osteoporosis-by-the-%C3%AE-v%C3%AE-3-integrin-antagonist-of-rhodostomin-variants
#5
Tzu-Hung Lin, Rong-Sen Yang, Huang-Ju Tu, Houng-Chi Liou, Yen-Ming Lin, Woie-Jer Chuang, Wen-Mei Fu
Integrins are heterodimeric cell surface receptors that mediate cell-cell and cell-matrix interaction. The vitronectin and osteopontin receptor αvβ3 integrin has increased expression levels and is implicated in the adhesion, activation, and migration of osteoclasts on the bone surface as well as osteoclast polarization. αvβ3 integrin plays an important role in osteoclast differentiation and resorption. In addition, Arg-Gly-Asp (RGD)-containing peptides, small molecular inhibitors, and antibodies to αvβ3 integrin have been shown to inhibit bone resorption in vitro and in vivo...
March 14, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28314478/osteoinductive-effects-of-glyceollins-on-adult-mesenchymal-stromal-stem-cells-from-adipose-tissue-and-bone-marrow
#6
Marjorie E Bateman, Amy L Strong, Ryan S Hunter, Melyssa R Bratton, Rajesh Komati, Jayalakshmi Sridhar, Kevin E Riley, Guangdi Wang, Daniel J Hayes, Stephen M Boue, Matthew E Burow, Bruce A Bunnell
BACKGROUND: While current therapies for osteoporosis focus on reducing bone resorption, the development of therapies to regenerate bone may also be beneficial. Promising anabolic therapy candidates include phytoestrogens, such as daidzein, which effectively induce osteogenesis of adipose-derived stromal cells (ASCs) and bone marrow stromal cells (BMSCs). PURPOSE: To investigate the effects of glyceollins, structural derivatives of daidzein, on osteogenesis of ASCs and BMSCs...
April 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28293641/functional-effects-of-prebiotic-fructans-in-colon-cancer-and-calcium-metabolism-in-animal-models
#7
Marisol Rivera-Huerta, Vania Lorena Lizárraga-Grimes, Ibrahim Guillermo Castro-Torres, Mabel Tinoco-Méndez, Lucía Macías-Rosales, Francisco Sánchez-Bartéz, Graciela Guadalupe Tapia-Pérez, Laura Romero-Romero, María Isabel Gracia-Mora
Inulin-type fructans are polymers of fructose molecules and are known for their capacity to enhance absorption of calcium and magnesium, to modulate gut microbiota and energy metabolism, and to improve glycemia. We evaluated and compared the effects of Chicory inulin "Synergy 1®" and inulin from Mexican agave "Metlin®" in two experimental models of colon cancer and bone calcium metabolism in mice and rats. Inulins inhibited the development of dextran sulfate sodium-induced colitis and colon cancer in mice; these fructans reduced the concentration of tumor necrosis factor alpha and prevented the formation of intestinal polyps, villous atrophy, and lymphoid hyperplasia...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28290112/protecting-bone-health-in-pediatric-rheumatic-diseases-pharmacological-considerations
#8
REVIEW
Yujuan Zhang, Diana Milojevic
Bone health in children with rheumatic conditions may be compromised due to several factors related to the inflammatory disease state, delayed puberty, altered life style, including decreased physical activities, sun avoidance, suboptimal calcium and vitamin D intake, and medical treatments, mainly glucocorticoids and possibly some disease-modifying anti-rheumatic drugs. Low bone density or even fragility fractures could be asymptomatic; therefore, children with diseases of high inflammatory load, such as systemic onset juvenile idiopathic arthritis, juvenile dermatomyositis, systemic lupus erythematosus, and those requiring chronic glucocorticoids may benefit from routine screening of bone health...
March 13, 2017: Paediatric Drugs
https://www.readbyqxmd.com/read/28286988/exercise-and-nutritional-approaches-to-prevent-frail-bones-falls-and-fractures-an-update
#9
REVIEW
R M Daly
Osteoporosis (low bone strength) and sarcopenia (low muscle mass, strength and/or impaired function) often co-exist (hence the term 'sarco-osteoporosis') and have similar health consequences with regard to disability, falls, frailty and fractures. Exercise and adequate nutrition, particularly with regard to vitamin D, calcium and protein, are key lifestyle approaches that can simultaneously optimize bone, muscle and functional outcomes in older people, if they are individually tailored and appropriately prescribed in terms of the type and dose...
April 2017: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/28283937/effect-of-bisphosphonate-initiation-at-week-2-versus-week-12-on-short-term-functional-recovery-after-femoral-neck-fracture-a-randomized-controlled-trial
#10
Aasis Unnanuntana, Panai Laohaprasitiporn, Atthakorn Jarusriwanna
The appropriate time to initiate bisphosphonate treatment after a fragility fracture has not yet been established. In this study, we found no significant differences in short-term functional recovery between femoral neck fracture patients who received bisphosphonate treatment at 2 versus 12 weeks after hemiarthroplasty. INTRODUCTION: Bisphosphonate is the mainstay therapy for prevention and treatment of osteoporosis. The aim of this study was to investigate the effect of bisphosphonate initiation on short-term functional recovery in femoral neck fracture patients at 2 versus 12 weeks after hemiarthroplasty...
December 2017: Archives of Osteoporosis
https://www.readbyqxmd.com/read/28275812/urinary-stone-disease-in-pediatric-and-adult-metabolic-bone-clinic-patients
#11
Andrew L Schwaderer, Abimbola Oduguwa, Kirsten Kusumi
Kidney stones are increasing in the pediatric and adult populations; similarly osteoporosis is increasingly recognized in children. While kidney stone formers are known to suffer from low bone density, metabolic bone patients have not been considered a high risk population for kidney stones. Retrospective chart review of Nationwide Children's Hospital Metabolic Bone Clinic patients from October 2009-2013. Patients were identified by ICD 9 codes for osteoporosis, osteopenia, low bone density and kidney stones...
March 8, 2017: Urolithiasis
https://www.readbyqxmd.com/read/28274898/association-of-benign-paroxysmal-positional-vertigo-with-osteoporosis-and-vitamin-d-deficiency-a-case-controlled-study
#12
Abdullah Karataş, Gülşah Acar Yüceant, Turgut Yüce, Cemal Hacı, Işıl Taylan Cebi, Mehti Salviz
OBJECTIVE: Benign paroxysmal positional vertigo (BPPV) is a common type of vertigo caused by the peripheral vestibular system. The majority of cases are accepted as idiopathic. Calcium metabolism also plays a primary role in the synthesis/absorption of otoconia made of calcium carbonate and thus might be an etiological factor in the onset of BPPV. In this study, we aimed to investigate the role of osteoporosis and vitamin D in the etiology of BPPV by comparing BPPV patients with hospital-based controls...
March 9, 2017: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/28270379/development-and-testing-of-a-mobile-phone-app-for-self-monitoring-of-calcium-intake-in-young-women
#13
Ilona Tay, Suzanne Garland, Alexandra Gorelik, John Dennis Wark
BACKGROUND: Interventions to prevent osteoporosis by increasing dairy intake or physical activity in young women have been limited to increasing osteoporosis knowledge and awareness. However, findings have shown that this does not always lead to a change in behaviors. Self-monitoring using mobile devices in behavioral interventions has yielded significant and positive outcomes. Yet, to our knowledge, mobile self-monitoring has not been used as an intervention strategy to increase calcium intake, particularly in young women, for better bone health outcomes...
March 7, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28268173/improvement-of-osteoporosis-by-lycium-chinense-administration-in-ovariectomized-mice
#14
Mi Hye Kim, Ji Eun Lee, Jae Sung Lee, Woong Mo Yang
BACKGROUND: The fruit of Lycium chinense (LC), one of the most popular natural materials, has been used to counter the effects of musculoskeletal diseases in oriental medicine. In particular, this fruit is known to have antiaging effects, which is of significant interest to the research community. The purpose of our investigation was to observe and confirm the ameliorative effect of LC on osteoporosis, which was verified in this in vivo study. METHODS: Female ICR mice aged 5 weeks were surgically ovariectomized (OVX) to induce osteoporosis...
March 3, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28258366/risk-factors-for-distal-radius-fracture-in-postmenopausal-women
#15
Wenting Xu, Cheng Ni, Ren Yu, Guoqing Gu, Zheren Wang, Guoqing Zheng
PURPOSE: The aim of this work was to explore the risk factors for distal radius fracture in postmenopausal women. PATIENTS AND METHODS: A total of 611 postmenopausal women with distal radius fractures were included. In all, 173 patients with unstable distal radius fractures were included (unstable fracture group), while there were 438 patients with stable distal radius fractures (stable fracture group). The control group comprised 800 postmenopausal women with no fracture...
March 3, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28254481/effects-of-the-combined-herba-epimedii-and-fructus-ligustri-lucidi-on-bone-turnover-and-tgf-%C3%AE-1-smads-pathway-in-giop-rats
#16
Yan Yang, Honglei Nian, Xiufeng Tang, Xiujuan Wang, Renhui Liu
ETHNOPHARMACOLOGICAL RELEVANCE: Kidney deficiency is the main pathogenesis of osteoporosis based on the theory of "kidney governing bones" in traditional Chinese medicine (TCM). Combined Herba Epimedii and Fructus Ligustri Lucidi, based on traditional Chinese formula Er-Zhi pills, were frequently used in TCM formulas that were prescribed for kidney tonifying and bone strengthening. However, it is unclear whether the combination of the two herbs may have a protective influence on glucocorticoid-induced osteoporosis (GIOP)...
February 27, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28253597/-the-effect-of-long-term-low-dose-prednisone-on-bone-mineral-density-in-patients-with-systemic-lupus-erythematosus
#17
G Wang, X P Li, X M Li, G S Wang, J H Tao, Y Ma
Objective: To investigate the effect of long-term low dose prednisone administration on bone mineral density (BMD) in patients with inactive systemic lupus erythematosus (SLE). Methods: A total of 118 inactive female SLE patients with long-term administration of low dose prednisone were recruited from the Department of Rheumatology and Immunology at An hui Provincial Hospital.All patients were given low dose prednisone for long-term (≤10 mg/d, more than half a year). According to prednisone doses, subjects were divided into two groups, namely group A (≤7...
March 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/28242067/denosumab-is-effective-in-the-treatment-of-bone-marrow-oedema-syndrome
#18
Tim Rolvien, Tobias Schmidt, Sebastian Butscheidt, Michael Amling, Florian Barvencik
Bone marrow oedema (BMO) syndrome describes a painful condition with increase of interstitial fluid within bone and is often lately diagnosed due to unspecific symptoms. The underlying causes are diverse while it is widely assumed that in cases of BMO local bone resorption is increased. Denosumab, a human monoclonal antibody that binds to the receptor activator of nuclear factor kappa-B ligand (RANKL) inhibits osteoclastic bone resorption and is commonly administered in the treatment of osteoporosis. Besides one previous case report, its clinical effectiveness in the treatment of bone marrow oedema has not been elucidated...
February 22, 2017: Injury
https://www.readbyqxmd.com/read/28241420/antiosteoporotic-activity-of-genistein-aglycone-in-postmenopausal-women-evidence-from-a-post-hoc-analysis-of-a-multicenter-randomized-controlled-trial
#19
Vincenzo Arcoraci, Marco Atteritano, Francesco Squadrito, Rosario D'Anna, Herbert Marini, Domenico Santoro, Letteria Minutoli, Sonia Messina, Domenica Altavilla, Alessandra Bitto
Genistein has a preventive role against bone mass loss during menopause. However, experimental data in animal models of osteoporosis suggest an anti-osteoporotic potential for this isoflavone. We performed a post-hoc analysis of a previously published trial investigating the effects of genistein in postmenopausal women with low bone mineral density. The parent study was a randomized, double-blind, placebo-controlled trial involving postmenopausal women with a femoral neck (FN) density <0.795 g/cm². A cohort of the enrolled women was, in fact, identified at the baseline as osteoporotic (n = 121) on the basis of their T-score and analyzed thereafter for the 24 months' treatment with either 1000 mg of calcium and 800 IU vitamin D3 (placebo; n = 59); or calcium, vitamin D3, and Genistein aglycone (54 mg/day; genistein; n = 62)...
February 22, 2017: Nutrients
https://www.readbyqxmd.com/read/28238166/the-effect-of-parathyroid-hormone-1-84-treatment-on-serum-bone-morphogenetic-protein-4-and-vascular-endothelial-growth-factor-in-postmenopausal-women-with-established-osteoporosis
#20
J Pepe, C Cipriani, F P Cantatore, A Fabbri, E Pola, V Vinicola, O Raimo, F Biamonte, R Pascone, C Ferrara, S Minisola
PURPOSE: To investigate the effect of 18 months' parathyroid hormone 1-84 (PTH 1-84) treatment on serum levels of bone morphogenetic protein 4 (BMP4) and vascular endothelial growth factor (VEGF), in postmenopausal women with established osteoporosis. METHODS: Thirty-seven postmenopausal women with osteoporosis (mean age 72.9 ± 8.1 years old) and 23 healthy controls (mean age 68.9 ± 9.9 years old) were enrolled. Patients were treated with daily subcutaneous injections of PTH (1-84) 100 mcg for 18 months, plus calcium 1 gr and vitamin D 800 IU per os daily...
February 25, 2017: Journal of Endocrinological Investigation
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