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https://www.readbyqxmd.com/read/28107028/interrelationship-of-clinical-radiographic-and-hematological-features-in-patients-under-bisphosphonate-therapy
#1
Valesca Sander Koth, Maria Antonia Figueiredo, Fernanda Gonçalves Salum, Karen Cherubini
OBJECTIVE: To analyze clinical, radiographic and hematological aspects of patients under bisphosphonate therapy. METHODS: A retrospective study was conducted where the records of patients taking bisphosphonates were analyzed considering the occurrence of bisphosphonate-related osteonecrosis of the jaw (BRONJ). Evaluation included panoramic and periapical radiographies, hematological exams and clinical features. Radiographies were analyzed determining the presence or absence of bone sclerosis, osteolysis, persisting alveolar socket, narrowing of the mandibular canal, widening of the periodontal ligament space, periradicular radiolucency, sequestrum, and thickening of the lamina dura...
January 20, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/28095739/expression-and-localization-of-fibroblast-growth-factor-fgf-23-and-klotho-in-the-spleen-its-physiological-and-functional-implications
#2
Yuri Nakashima, Toru Mima, Mitsuru Yashiro, Tomohiro Sonou, Masaki Ohya, Asuka Masumoto, Shintaro Yamanaka, Daisuke Koreeda, Koichi Tatsuta, Yoshiyuki Hanba, Mari Moribata, Shigeo Negi, Takashi Shigematsu
The FGF23-Klotho signaling axis is known to exert anti-aging effects via calcium-phosphorus metabolism. In mice deficient in FGF23-Klotho signaling, however, the number of splenocytes is reduced. FGF23 is expressed in both bone and spleen, with regulation of its production differing in these organs. As FGF23-Klotho signaling may play an immunological role in the spleen, splenocytes in male C57BL/6J mice were assayed for expression of Klotho or FGF23 by flow cytometry and immunohistochemistry. Cells that expressed Klotho included CD45R/B220(+) CD21/CD35(+) CD1d(+) CD43(-) marginal zone B cells...
January 18, 2017: Growth Factors
https://www.readbyqxmd.com/read/28091752/management-of-secondary-hyperparathyroidism-practice-patterns-and-outcomes-of-cinacalcet-treatment-with-or-without-active-vitamin%C3%A2-d-in-austria-and-switzerland-the-observational-transit-study
#3
Wolfgang Pronai, Alexander R Rosenkranz, Andreas Bock, Renate Klauser-Braun, Christine Jäger, Gunther Pendl, Margit Hemetsberger, Karl Lhotta
Secondary hyperparathyroidism is a complex disorder requiring an individualized multicomponent treatment approach. This study was conducted to identify treatment combinations used in clinical practice in Austria and Switzerland and the potential to control this disorder. A total of 333 adult hemodialysis and peritoneal dialysis patients were analyzed. All patients received conventional care prior to initiation of a cinacalcet-based regimen. During the study, treatment components, e.g. cinacalcet, active vitamin D analogues and phosphate binders, were adapted to individual patient requirements and treatment dynamics were documented...
January 13, 2017: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/28087977/fibroblast-growth-factor-23-fgf23-in-untreated-nephrotic-syndrome
#4
Ashok Kumar Yadav, Raja Ramachandran, Abhinav Aggarwal, Vinod Kumar, Krishan Lal Gupta, Vivekanand Jha
AIM: Despite its importance in bone and cardiovascular disease in subjects with kidney disease, there is no data on fibroblast growth factor 23 (FGF23) perturbations in nephrotic syndrome. We evaluated FGF23 and markers of mineral bone metabolism in subjects with untreated NS. METHODS: In this cross-sectional study, we measured circulating levels of FGF23, 25-hydroxy vitamin D [25(OH)D], 1,25 di-hydroxy vitamin D [1,25(OH)2 D], serum albumin, serum calcium, phosphorus, creatinine and intact parathyroid hormone (iPTH) in 101 patients with adults onset NS and 40 healthy controls...
January 14, 2017: Nephrology
https://www.readbyqxmd.com/read/28081333/bone-mineral-density-and-growth-in-children-with-coeliac-disease-on-a-gluten-free-diet
#5
Ceyda Tuna Kırsaçlıoğlu, Zarife Kuloğlu, Aydan Tanca, Nuriye Özlem Küçük, Zehra Aycan, Gönül Öcal, Arzu Ensari, Ayhan Gazi Kalaycı, Nurten Girgin
BACKGROUND/AIM: To evaluate changes in growth and bone metabolism during consumption of a gluten-free diet (GFD) in children with coeliac disease (CD). MATERIALS AND METHODS: Thirty-seven children with CD (mean age of 8.8 ± 4.6 years, 21 girls) were enrolled. Anthropometric measurements, bone mineral density (BMD) in lumbar 2-4 vertebrae, and serum alkaline phosphatase, calcium, and phosphorus levels at diagnosis and at follow-up were recorded. RESULTS: The mean follow-up period was 3...
December 20, 2016: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28079295/hypophosphatemia-predicts-a-failure-to-recover-from-adefovir-related-renal-injury-after-dose-reduction-in-lamivudine-resistant-hepatitis-b-patients
#6
Tatsuo Yamamoto, Yasuhiko Maruyama, Naro Ohashi, Hideo Yasuda, Masami Shinozaki
AIM: In chronic hepatitis B patients receiving 10 mg adefovir, dose reduction is recommended when renal injury appears. However, recovery is not always achieved and markers that recommend switching to another antiviral agent are unknown. We investigated adefovir-related renal injury, recovery after dose reduction, and their predictors. METHODS: The renal injury in 77 chronic hepatitis B patients receiving 10 mg adefovir and recovery after dose reduction to alternate day administration in those with adefovir-related renal injury were assessed...
January 12, 2017: Hepatology Research: the Official Journal of the Japan Society of Hepatology
https://www.readbyqxmd.com/read/28070260/relationship-between-bone-density-and-biochemical-markers-of-bone-among-two-groups-taking-carbamazepine-and-sodium-valproate-for-epilepsy-in-comparison-with-healthy-individuals-in-yazd
#7
Abolghasem Rahimdel, Ali Dehghan, Mahboubeh Abolhassani Moghadam, Ali Mellat Ardekani
INTRODUCTION: Chronic antiepileptic therapy has been associated with metabolic bone diseases including osteomalacia and osteoporosis. The aim of this study was to determine frequency of changes in biochemical and bone mineral density (BMD) in adults receiving valproaic acid (VPA) & carbamazepine (CBZ). METHODS: In a cross sectional study evaluating adults (age 20-50 y) epileptic patients receiving valproic acid or carbamazepine for at least 2 years. This study was conducted from May 2014 to May 2015 in Shahid Sadoughi Hospital of Yazd University of Medical Science, Yazd, Iran...
November 2016: Electronic Physician
https://www.readbyqxmd.com/read/28068758/strontium-doped-amorphous-calcium-phosphate-porous-microspheres-synthesized-through-a-microwave-hydrothermal-method-using-fructose-1-6-bisphosphate-as-an-organic-phosphorus-source-application-in-drug-delivery-and-enhanced-bone-regeneration
#8
Weilin Yu, Tuan-Wei Sun, Chao Qi, Zhen-Yu Ding, Hua-Kun Zhao, Feng Chen, Dao-Yun Chen, Ying-Jie Zhu, Zhongmin Shi, Yaohua He
Nanostructured calcium phosphate (CaP) porous microspheres are of great potential in drug delivery and bone regeneration due to their large specific surface area, biocompatibility and similarity to inorganic component of osseous tissue. In this work, strontium (Sr)-doped amorphous calcium phosphate porous microspheres (SrAPMs) were synthesized through a microwave-hydrothermal method using fructose 1,6-bisphosphate trisodium salt (FBP) as the source of phosphate ions. The SrAPMs showed a mesoporous structure and a relatively high specific area...
January 10, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28066541/ultrastructural-changes-during-osteogenic-differentiation-in-mesenchymal-stromal-cells-cultured-in-alginate-hydrogel
#9
Jakub Grzesiak, Agnieszka Śmieszek, Krzysztof Marycz
BACKGROUND: Osteogenic differentiation of mesenchymal stem cells has been extensively investigated with regards to different aspects, including the analysis of cell intracellular and extracellular proteome, cell gene expression pattern, and morphology. During the osteogenic differentiation, osteoblasts produce and release specific proteins, like osteocalcin and osteopontin. Simultaneously, cells produce the extracellular matrix (ECM) that resembles the bone ECM, with high quantity of calcium and phosphorus...
2017: Cell & Bioscience
https://www.readbyqxmd.com/read/28046160/requirement-for-digestible-calcium-by-25-to-50-kg-pigs-at-different-dietary-concentrations-of-phosphorus-as-indicated-by-growth-performance-bone-ash-concentration-and-calcium-and-phosphorus-balances
#10
J C González-Vega, C L Walk, M R Murphy, H H Stein
Two experiments were conducted to determine the requirement for standardized total tract digestible (STTD) Ca by 25 to 50 kg pigs at different concentrations of STTD P. Twenty corn-soybean meal based diets were formulated with diets containing 4 concentrations of STTD P (0.15, 0.31, 0.39, or 0.47%) and 5 concentrations of STTD Ca (0.13, 0.27, 0.42, 0.57, or 0.72%). Diets were mixed in 1 batch and were used in both experiments. In Exp. 1, 240 pigs (initial average BW: 24.70 ± 1.27 kg) were randomly allotted to the 20 diets in 6 blocks with 1 pen per diet in each block using a 4 × 5 factorial design...
December 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/28045985/association-of-ckd-mbd-markers-with-all-cause-mortality-in-prevalent-hemodialysis-patients-a-cohort-study-in-beijing
#11
Duo Li, Ling Zhang, Li Zuo, Cheng Gang Jin, Wen Ge Li, Jin-Bor Chen
The relationships between all-cause mortality and serum intact parathyroid hormone (iPTH), calcium, and phosphate are fairly diverse in patients on maintenance hemodialysis according to prior studies. This study evaluated the association of chronic kidney disease-mineral and bone disorder (CKD-MBD) markers with all-cause mortality in prevalent hemodialysis patients from 2007 to 2012 in Beijing, China. A cohort, involving 8530 prevalent hemodialysis patients who had undergone a 6-70 months follow-up program (with median as 40 months) was formed...
2017: PloS One
https://www.readbyqxmd.com/read/28011101/cartilage-mri-t2-%C3%A2-relaxation-time-and-perfusion-changes-of-the-knee-in-a-5-6-nephrectomy-rat-model-of-chronic-kidney-disease
#12
C-Y Wang, Y-J Peng, Y-J Hsu, H-S Lee, Y-C Chang, C-S Chang, S-W Chiang, Y-C Hsu, M-H Lin, G-S Huang
OBJECTIVE: Chronic kidney disease (CKD) is characterized by metabolic disturbances in calcium and phosphorus homeostasis as kidney function declines. Alterations in blood perfusion in bone resulting from arteriosclerosis of bone vessels may relate to the progression of CKD. Herein, change in dynamic contrast enhanced (DCE) MRI parameters (A: amplitude, kel: elimination constant, and kep: permeability rate constant) and MRI T2(∗) relaxation time of the knee cartilage were measured in a rodent nephrectomy model in order to (1) examine the relationship of peripheral blood perfusion to CKD and (2) demonstrate the feasibility of using DCE-MRI parameters and MRI T2(∗) as imaging biomarkers to monitor disease progression...
December 21, 2016: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28005411/a-mutation-in-the-dmp1-gene-alters-phosphate-responsiveness-in-mice
#13
Shoji Ichikawa, Rita Gerard-O'Riley, Dena Acton, Amie K McQueen, Isabel E Strobel, Phillip C Witcher, Jian Q Feng, Michael J Econs
Mutations in the dentin matrix protein 1 (DMP1) gene cause autosomal recessive hypophosphatemic rickets (ARHR). Hypophosphatemia in ARHR results from increased circulating levels of a phosphaturic hormone, fibroblast growth factor 23 (FGF23). Similarly, elevated FGF23, caused by mutations in the PHEX gene, is responsible for the hypophosphatemia in X-linked hypophosphatemic rickets (XLH). Previously, we demonstrated that a Phex mutation in mice creates a lower set point for extracellular phosphate, where an increment in phosphorus further stimulates Fgf23 production to maintain low serum phosphorus levels...
December 22, 2016: Endocrinology
https://www.readbyqxmd.com/read/28002816/associations-of-serum-osteocalcin-and-polymorphisms-of-the-osteocalcin-gene-with-bone-mineral-density-in-postmenopausal-and-elderly-chinese-women
#14
Xiao-Ya Zhang, Jin-Wei He, Wen-Zhen Fu, Yu-Juan Liu, Zhen-Lin Zhang
BACKGROUND: The aims of this study were: (1) to evaluate the association of serum osteocalcin with bone mineral density (BMD) and markers of bone metabolism in postmenopausal and elderly Chinese women, and (2) to observe the relationships of single-nucleotide polymorphisms (SNPs) in and around the osteocalcin gene with osteocalcin and BMD. METHODS: A cross-sectional study was conducted with 725 postmenopausal Chinese women. Five SNPs (rs1543294, rs1800247, rs759330, rs2842880, and rs933489) of the osteocalcin gene were genotyped...
December 22, 2016: Journal of Nutrigenetics and Nutrigenomics
https://www.readbyqxmd.com/read/27996311/evaluating-the-application-of-tissue-specific-dose-kernels-instead-of-water-dose-kernels-in-internal-dosimetry-a-monte-carlo-study
#15
Maryam Khazaee Moghadam, Alireza Kamali Asl, Parham Geramifar, Habib Zaidi
PURPOSE: The aim of this work is to evaluate the application of tissue-specific dose kernels instead of water dose kernels to improve the accuracy of patient-specific dosimetry by taking tissue heterogeneities into consideration. MATERIALS AND METHODS: Tissue-specific dose point kernels (DPKs) and dose voxel kernels (DVKs) for yttrium-90 ((90)Y), lutetium-177 ((177)Lu), and phosphorus-32 ((32)P) are calculated using the Monte Carlo (MC) simulation code GATE (version 7)...
December 2016: Cancer Biotherapy & Radiopharmaceuticals
https://www.readbyqxmd.com/read/27994603/fibroblast-growth-factor-23-and-hypophosphatemia-a-case-of-hypophosphatemia-along-the-rickets-osteomalacia-spectrum
#16
REVIEW
George T Georges, O Nájera, Kurt Sowers, James R Sowers
Phosphorus is a key component of bone, and a deficiency results in poor mineralization along with other systemic symptoms of hypophosphatemia. Various causes of hypophosphatemia with renal wasting of phosphorus have been identified. These include the Fanconi syndrome, various genetic mutations of fibroblast growth factor 23 (FGF23) handling and the sodium/phosphate cotransporter, and those due to FGF23 secretion by mesenchymal tumors. Depending on the cause, vitamin D metabolism may also be impaired, which may amplify the deficiency in phosphorus and render treatment more challenging...
November 2016: Cardiorenal Medicine
https://www.readbyqxmd.com/read/27994294/association-of-beta-2-microglobulin-with-inflammation-and-dislipidemia-in-high-flux-membrane-hemodialysis-patients
#17
Valdete Topçiu-Shufta, Ramë Miftari, Valdete Haxhibeqiri, Shpend Haxhibeqiri
BACKGROUND: Higher than expected cardiovascular mortality in hemodialysis patients, has been attributed to dyslipidemia as well as inflammation. Beta2-Microglobulin (β2M) is an independent predictor of outcome for hemodialysis patients and a representative substance of middle molecules. RESULTS: In 40 patients in high-flux membrane hemodialysis, we found negative correlation of β2M with high density lipoprotein (r=-0.73, p<0.001) and albumin (r= -0.53, p<0...
October 2016: Medical Archives
https://www.readbyqxmd.com/read/27991480/mineral-bone-disorder-and-its-management-among-hemodialysis-patients-in-the-gulf-cooperation-council-initial-findings-from-the-dialysis-outcomes-and-practice-patterns-study-2012-2015
#18
Issa Al Salmi, Mona AlRukhaimi, Ali AlSahow, Faisal A M Shaheen, Saeed M G Al-Ghamdi, Fadwa AlAli, Sumaya AlGhareeb, Yacoub Al Maimani, Mohammed AlGhonaim, Brian Bieber, Francesca Tentori, Ronald L Pisoni
The prospective cohort Dialysis Outcomes and Practice Patterns Study (DOPPS) initiated data collection in national samples of hemodialysis (HD) units (total of 41 study sites) in all six Gulf Cooperation Council (GCC) countries (Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the United Arab Emirates) in late 2012. Here, we report initial results regarding mineral bone disorders (MBDs) and its management in the GCC countries. Forty-one randomly selected HD facilities, treating >23 HD patients each, were sampled and represent care for >95% of GCC HD patients...
November 2016: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/27987763/novel-therapeutic-intervention-for-osteoporosis-prepared-with-strontium-hydroxyapatite-and-zoledronic-acid-in-vitro-and-pharmacodynamic-evaluation
#19
Deepak Kumar Khajuria, Ramakrishna Vasireddi, Martin Trebbin, David Karasik, Rema Razdan
Osteoporosis therapeutics has been monopolized mainly by bisphosphonates, which are potent anti-osteoporotic drugs, while they do not promote bone formation or replenish the already resorbed bone. Although strontium substituted hydroxyapatite (SrHA) has been proclaimed to improve bone properties in an osteoporotic animal model, there is no published data on direct delivery of SrHA nanoparticles by bisphosphonate-like zoledronic acid (ZOL) to the bone. Therefore, this study was designed to investigate the potential of using SrHA/ZOL nanoparticle-based drug formulation in an ovariectomized rat model of postmenopausal osteoporosis...
February 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/27983533/mechanism-of-bushen-jianpi-decoction-in-preventing-and-treating-osteoporosis-caused-by-aromatase-inhibitors-in-breast-cancer-treatment
#20
Xu-Hui Huang, Rong-Hua Liang, Le Su, Wei Guo, Chang-Jun Wang
PURPOSE: Research on the mechanism of Bushen Jianpi decoction (BJD) for preventing and treating osteoporosis caused by aromatase inhibitors (AI) during treatment for breast cancer resection. METHODS: An ovariectomized mouse model was established using random division into 6 groups: a sham ovariectomized group, a blank control group, a control group, an alendronate group, a BJD group, and a drug combination group. Mice breast cancer cell lines (4T1) were cultured and seeded into the armpits of 6 groups of BALB/c mice...
December 9, 2016: Cancer Biomarkers: Section A of Disease Markers
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