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https://www.readbyqxmd.com/read/28533541/development-of-a-novel-chronic-kidney-disease-mouse-model-to-evaluate-the-progression-of-hyperphosphatemia-and-associated-mineral-bone-disease
#1
Takashi Tani, Hideo Orimo, Akira Shimizu, Shuichi Tsuruoka
Medial arterial calcification (MAC) and renal osteodystrophy are complications of mineral bone disease (MBD) associated with chronic kidney disease (CKD). Our aim was to develop a novel mouse model to investigate the clinical course of CKD-MBD. Eight-week-old C57BL/6 J male mice were assigned to the following groups: the control group, fed a standard chow for 6 or 12 weeks; the CKD-normal phosphorus (NP) group, fed a chow containing 0.2% adenine, with normal (0.8%) phosphorus, for 6 or 12 weeks; and the CKD-high phosphorus (HP) group, fed 6 weeks with the 0...
May 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28531918/protective-effect-of-ethanolic-extract-of-urtica-urens-l-against-the-toxicity-of-imidacloprid-on-bone-remodeling-in-rats-and-antioxidant-activities
#2
Massara Mzid, Riadh Badraoui, Sameh Ben Khedir, Zouheir Sahnoun, Tarek Rebai
Imidacloprid (IMI) is very harmful to human health and cause problems. Recently, plants have been considered as potential agents for protection against these disorders. Urtica urens L. (UU) is very useful for relieving rheumatic pains and there is no scientific evidence justifying its use, which lets us think of its direct effect on the bone. This study aimed to investigate the protective effect of UU against toxicity effects of IMI in female rat. Rats were divided into control group, 3 groups treated with IMI at 50, 200 or 300mg/kg/day and 3 groups co-treated with IMI (50, 200 or 300mg/kg/day)+100mg/kg/day of UU...
May 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28508128/the-cardiothoracic-ratio-and-all-cause-and-cardiovascular-disease-mortality-in-patients-undergoing-maintenance-hemodialysis-results-of-the-mbd-5d-study
#3
Hiroaki Ogata, Junji Kumasawa, Shingo Fukuma, Masahide Mizobuchi, Eriko Kinugasa, Masafumi Fukagawa, Shunichi Fukuhara, Tadao Akizawa
BACKGROUND: The cardiothoracic ratio (CTR) is a non-invasive left ventricular hypertrophy index. However, whether CTR associates with cardiovascular disease (CVD) and mortality in hemodialysis (HD) populations is unclear. METHODS: Using a Mineral and Bone disorder Outcomes Study for Japanese CKD Stage 5D Patients (MBD-5D Study) subcohort, 2266 prevalent HD patients (age 62.8 years, female 38.0%, HD duration 9.4 years) with secondary hyperparathyroidism (SHPT) whose baseline CTR had been recorded were selected...
May 15, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/28501335/obtaining-of-granular-fertilizers-based-on-ashes-from-combustion-of-waste-residues-and-ground-bones-using-phosphorous-solubilization-by-bacteria-bacillus-megaterium
#4
M Rolewicz, P Rusek, K Borowik
The article presents research results on obtaining phosphorus granulated fertilizers on the basis of microbiologically activated sewage sludge ashes, ground bones and dried blood from meat industry. Granulation tests were carried out using a laboratory pan granulator as well as on an experimental pilot plant. The aim of the studies was to select the proper composition of the mixture of raw materials and binding agents to obtain granulated fertilizers from waste materials such as MSSA and MBM and bacteria lyophilisate...
May 10, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28501301/osteocyte-dysfunction-and-renal-osteodystrophy-not-just-calcium-and-phosphorus-anymore
#5
Katherine Wesseling-Perry
In an important new cross-sectional analysis in this issue, Graciolli and colleagues present bone data from 148 adult patients across the spectrum of chronic kidney disease that confirm that disrupted osteocyte function and abnormal bone histology characterize all stages of chronic kidney disease and suggest that osteocytic Wnt signaling and osteocyte maturation may play a role in the pathogenesis of renal osteodystrophy. These concepts may alter how the skeletal, cardiovascular, and infectious complications of chronic kidney disease are managed...
June 2017: Kidney International
https://www.readbyqxmd.com/read/28497224/bone-density-microarchitecture-and-material-strength-in-chronic-kidney-disease-patients-at-the-time-of-kidney-transplantation
#6
M J Pérez-Sáez, S Herrera, D Prieto-Alhambra, L Vilaplana, X Nogués, M Vera, D Redondo-Pachón, M Mir, R Güerri, M Crespo, A Díez-Pérez, J Pascual
Bone health is assessed by bone mineral density (BMD). Other techniques such as trabecular bone score and microindentation could improve the risk of fracture's estimation. Our chronic kidney disease (CKD) patients presented worse bone health (density, microarchitecture, mechanical properties) than controls. More than BMD should be done to evaluate patients at risk of fracture. INTRODUCTION: BMD measured by dual-energy X-ray absorptiometry (DXA) is used to assess bone health in end-stage renal disease (ESRD) patients...
May 11, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28496308/atorvastatin-a-double-weapon-in-osteoporosis-treatment-an-experimental-and-clinical-study
#7
Naglaa El-Nabarawi, Mohamed El-Wakd, Mostafa Salem
OBJECTIVE: The aim of this study was to evaluate the effect of atorvastatin on the bone formation and resorption markers in ovariectomized rats (experimental study), and to study its effect on the bone mineral density (BMD) in postmenopausal osteoporotic women (clinical study). MATERIALS AND METHODS: The study involved experimental and clinical aspects. In the experimental aspect, 42 female Wistar rats were divided into five groups: Group I (n=6; sham-operated), Group II (n=6; 1 mL of carboxymethyl cellulose [CMC] was administered orally), Group III (n=6; 20 mg/kg orally of atorvastatin was administered), Group IV (n=12; untreated ovariectomized [OVX] rats and served as a model of osteoporosis [OP]) and Group V (n=12; 20 mg/kg orally of atorvastatin was administered to ovariectomized rats)...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28492424/a-new-highly-hydrophilic-electrochemical-implant-titanium-surface-a-histological-and-biomechanical-in-vivo-study
#8
Paolo Trisi, Marco Berardini, Antonello Falco, Enrico Sandrini, Michele Podaliri Vulpiani
PURPOSE: The aim was to compare the osseointegration degree and secondary implant stability between implants with different surface treatments. MATERIALS AND METHODS: A novel electrochemical treatment was applied to modify the sandblasted and acid-etched surface (SLA) to obtain the new hydrophilic Feeling (FEL) surface presenting a highly soluble and homogenous film made of calcium and phosphorus nanocrystals. Twenty 3.8 × 10-mm dynamix implants (Cortex) were inserted in sheep iliac crests...
May 10, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28489557/reduced-bone-mineral-density-in-chinese-children-with-phenylketonuria
#9
Kundi Wang, Ming Shen, Honglei Li, Xiaowen Li, Chun He
BACKGROUND: Phenylketonuria (PKU) is an autosomal recessive metabolic disorder. Dietary control of classic PKU needs restriction of natural proteins. The diet results in unbalanced nutrition, which might affect the physical development of the patients. Our aim was to evaluate bone mineral density (BMD) in children with PKU. METHODS: To investigate the BMD of children with PKU, 41 children with PKU and 64 healthy controls were recruited (all 3-4 years of age). Body weight and height, BMD, Phe blood levels, thyroid function, calcium, phosphorus, iron metabolism markers, and vitamin D3 were measured...
May 9, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28487345/association-of-parameters-of-mineral-bone-disorder-with-mortality-in-patients-on-hemodialysis-according-to-level-of-residual-kidney-function
#10
Mengjing Wang, Yoshitsugu Obi, Elani Streja, Connie M Rhee, Wei Ling Lau, Jing Chen, Chuanming Hao, Takayuki Hamano, Csaba P Kovesdy, Kamyar Kalantar-Zadeh
BACKGROUND AND OBJECTIVES: The relationship between mineral and bone disorders and survival according to residual kidney function status has not been previously studied in patients on hemodialysis. We hypothesized that residual kidney function, defined by renal urea clearance, modifies the association between mineral and bone disorder parameters and mortality. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: The associations of serum phosphorus, albumin-corrected calcium, intact parathyroid hormone, and alkaline phosphatase with all-cause mortality were examined across three strata (<1...
May 9, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28482677/subsequent-bone-and-metabolic-responses-of-broilers-to-high-non-phytate-phosphorus-diets-in-the-starter-period
#11
N Baradaran, M H Shahir, Z Asadi Kermani
1. An experiment was performed to elucidate the subsequent effects of high non-phytate phosphorus (NPP) diets on growth performance, blood metabolites, bone characteristics and P retention of broilers fed on low-NPP grower diets. The 42-d study was designed as a 2 × 2 × 2 + 1 factorial, which included 2 starter NPP concentrations (4.5 and 5.5 g/kg; d 0 to 21), 2 grower NPP concentrations (1.5 and 2.3 g/kg; d 22 to 42), with or without phytase (1000 FTU/kg), with a reference diet containing an adequate NPP concentration over the course of the trial...
May 9, 2017: British Poultry Science
https://www.readbyqxmd.com/read/28482560/microwave-assisted-biomimetic-synthesis-of-hydroxyapatite-using-different-sources-of-calcium
#12
S Türk, I Altınsoy, G ÇelebiEfe, M Ipek, M Özacar, C Bindal
In this study, some properties of biomimetic synthesized hydroxyapatite by using different sources of calcium were investigated. Biomimetic synthesis of hydroxyapatite was carried out in microwave oven using 1.5 simulated body fluid (SBF) solution having different calcium sources with 800W power for 15min. As phosphorus source di-ammonium hydrogen phosphate ((NH4)2HPO4) while for each sample as a calcium sources calcium chloride (CaCl2), calcium nitrate tetra hydrate (Ca(NO3)2·4H2O) and calcium hydroxide (Ca(OH)2) were utilized, respectively...
July 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28480654/vitamin-d-status-and-bone-mineral-density-in-children-with-inflammatory-bowel-disease-compared-to-those-with-functional-abdominal-pain
#13
Jenny Sohn, Eun Jae Chang, Hye Ran Yang
Low vitamin D has been implicated in reduced bone mineral density (BMD) in children with inflammatory bowel disease (IBD). Our study aimed to evaluate differences in serum 25-hydroxyvitamin D (25[OH]D) and total body less head (TBLH) BMD z-scores in children with Crohn's disease (CD), ulcerative colitis (UC), and those with abdominal pain-related functional gastrointestinal disorder (AP-FGID) as the control group. We also examined the correlation between serum 25(OH)D and TBLH BMD z-score, and factors that affect each of these parameters...
June 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28473228/corticosteroid-treatment-exacerbates-bone-osteopenia-in-mice-with-gonadal-hormone-deficiency-induced-osteoporosis
#14
Riadh Badraoui, Nahed Amri, Nourhène Zammel, Rim Chaabane, Tarek Rebai
Gonadic deficiency and corticotherapy are important risk factors in the pathogenesis of osteoporosis. This study was outlined to assess the effects of combined orchidectomy (ORX) and corticosteroid (cortisol; CS) administration on bone remodeling and metabolism. Twenty-week-old male Swiss mice were randomized into four groups: either sham operated (sham), ORX, CS injected (CS), or ORX and CS injected (ORX+CS). After 28days, mice were euthanized. Both ORX and CS resulted in reduced trabecular volume, and mineral apposition rate and increased osteoclast number and activity...
May 1, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28473060/zinc-supplementation-reduces-rankl-opg-ratio-and-prevents-bone-architecture-alterations-in-ovariectomized-and-type-1-diabetic-rats
#15
Elaine C S Ferreira, Raul H Bortolin, Francisco P Freire-Neto, Karla S C Souza, João F Bezerra, Marcela A G Ururahy, Ana M O Ramos, Silvia T Himelfarb, Bento J Abreu, Thiago V N Didone, Lucia F C Pedrosa, Aldo C Medeiros, Sonia Q Doi, José Brandão-Neto, Rosário D C Hirata, Luciana A Rezende, Maria G Almeida, Mario H Hirata, Adriana A Rezende
Type 1 diabetes mellitus (T1DM) and estrogen deficiency are associated with several alterations in bone turnover. Zinc (Zn) is required for growth, development, and overall health. Zinc has been used in complementary therapy against bone loss in several diseases. We hypothesized that Zn supplementation represents a potential therapy against severe bone loss induced by the combined effect of estrogen deficiency and T1DM. We evaluated the protective effect of Zn against bone alterations in a chronic model of these disorders...
April 2017: Nutrition Research
https://www.readbyqxmd.com/read/28464092/reducing-mineral-usage-in-feedlot-diets-for-nellore-cattle-ii-impacts-of-calcium-phosphorus-copper-manganese-and-zinc-contents-on-intake-performance-and-liver-and-bone-status
#16
L F Prados, D F T Sathler, B C Silva, D Zanetti, S C Valadares Filho, H M Alhadas, E Detmann, S A Santos, L D S Mariz, M L Chizzotti
Weaned Nellore bulls ( = 36; 274 ± 34 kg) were used in a randomized block design with a 2 × 2 factorial arrangement of treatments to evaluate intake, fecal excretion, and performance with different concentrations of minerals. Experimental diets were formulated with 2 concentrations of Ca and P (macromineral factor; diet supplying 100% of Ca and P according to BR-CORTE () [CaP+] or diet without limestone and dicalcium phosphate [CaP-]) and 2 concentrations of microminerals (micromineral factor; diet with supplementation of microminerals [Zn, Mn, and Cu; CuMnZn+] or diet without supplementation of microminerals [Zn, Mn, and Cu; CuMnZn-])...
April 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28460884/enhanced-therapeutic-benefit-of-quercetin-loaded-phytosome-nanoparticles-in-ovariectomized-rats
#17
Abeer I Abd El-Fattah, Mohamed M Fathy, Zeinab Y Ali, Abd El-Rahman A El-Garawany, Ehsan K Mohamed
Quercetin, a dietary flavonol phytoestrogen, has many health benefits but it is poorly absorbed when administered orally. To improve its bioavailability, we prepared quercetin-loaded phytosome nanoparticles (QP) using the thin film hydration method. The prepared nano-formulations were characterized using different techniques. Transmission electron microscopy revealed the homogeneously spherical, well and uniformly dispersed, nano-sized nature of QP. Dynamic light scattering measurements of QP (70 ± 7.44 nm) also confirmed this...
April 29, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28457398/serum-magnesium-and-related-factors-in-long-term-renal-transplant-recipients-an-observational-study
#18
N Rodrigues, A Santana, J Guerra, M Neves, C Nascimento, J Gonçalves, A G da Costa
BACKGROUND: Low serum magnesium (MgS) is a known risk factor for cardiovascular and mineral bone disease. In renal transplant recipients (RTRs), low MgS levels have been related to higher glomerular filtration rates (GFR) and with calcineurin inhibitors, particularly tacrolimus. We aimed to evaluate MgS in renal transplant recipients with over 1 year of follow-up to establish related risk factors and the impact of the use of cyclosporine versus tacrolimus. METHODS: Cross-sectional study of 94 RTRs with more than 12 months of follow-up...
May 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28450684/the-diagnostic-dilemma-of-tumor-induced-osteomalacia-a-retrospective-analysis-of-144-cases
#19
Juan Feng, Yan Jiang, Ou Wang, Mei Li, Xiaoping Xing, Li Huo, Fang Li, Wei Yu, Ding-Rong Zhong, Jin Jin, Yong Liu, Fang Qi, Wei Lv, Lian Zhou, Xun-Wu Meng, Wei-Bo Xia
Diagnostic delay of tumor induced osteomalacia (TIO) is common in clinic practice. To investigate the diagnostic condition of TIO in China and raise clinicians' awareness of TIO, we retrospectively analyzed clinical manifestations, biochemical features, and specially evaluated missed diagnoses and misdiagnoses among 144 TIO patients from Peking Union Medical College Hospital during December 1982 to December 2014. Clinical presentations of TIO mainly included bone pain, difficulty in walking, pathological fractures, muscle weakness, and height loss...
April 26, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28449252/serum-phosphorus-levels-and-fracture-following-renal-transplantation
#20
Jasna Aleksova, Phillip Wong, William R Mulley, Kay Weng Choy, Robert McLachlan, Peter R Ebeling, Peter G Kerr, Frances Milat
PURPOSE: Increased fracture rates are observed in renal transplant recipients (RTRs) compared with the general population. Risk factors include age, diabetes, dialysis vintage, immunosuppression, and mineral and bone disorders(1). Low serum phosphorus levels occur post-transplantation; however its relationship with fracture risk has not been evaluated. The purpose of this study was to evaluate risk factors for fracture in RTRs at a single tertiary referral centre. METHODS: A retrospective cross-sectional analysis of 146 patients (75M, 71F) who had been referred for dual energy x-ray densitometry (DXA) post-renal transplantation was performed...
April 27, 2017: Clinical Endocrinology
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