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Bone specific alkaline phosphatase

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https://www.readbyqxmd.com/read/28522163/lncrna-malat1-sponges-mir-204-to-promote-osteoblast-differentiation-of-human-aortic-valve-interstitial-cells-through-up-regulating-smad4
#1
Xiaoxiong Xiao, Tingwen Zhou, Shichao Guo, Chao Guo, Qiao Zhang, Nianguo Dong, Yongjun Wang
BACKGROUND: Emerging evidences have indicated that long non-coding RNAs (lncRNAs) play vital roles in cardiovascular physiology and pathology. The lncRNA MALAT1, a highly abundant and conserved imprinted gene, has been implicated in many cardiovascular diseases. However, the function of MALAT1 in calcific aortic valve disease (CAVD) remains unknown. This study sought to document the function and underlying mechanism of MALAT1 in regulating CAVD. METHODS: Protein level was determined by immunoblotting and immunofluorescence staining...
May 10, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28508565/menaquinone-4-enhances-osteogenic-potential-of-human-amniotic-fluid-mesenchymal-stem-cells-cultured-in-a-2d-and-3d-dynamic-culture-system
#2
Domitilla Mandatori, Letizia Penolazzi, Caterina Pipino, Pamela Di Tomo, Sara Di Silvestre, Natalia Di Pietro, Sara Trevisani, Marco Angelozzi, Mariangela Ucci, Roberta Piva, Assunta Pandolfi
Menaquinones, also known as Vitamin K2 family, regulate calcium homeostasis in a "bone-vascular cross talk" and recently received particular attention for their positive effect on bone formation. Since the correlation between menaquinones and bone metabolism to date is still unclear, the objective of our study was to investigate the possible role of menaquinone-4 (MK-4), an isoform of the menaquinones family, in the modulation of osteogenesis. For this reason we used a model of human Amniotic Fluid Mesenchymal Stem Cells (hAFMSCs) cultured both in two-dimensional (2D) and three-dimensional (3D, RCCS™bioreactor) in vitro culture systems...
May 16, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28503694/detection-of-early-osteogenic-commitment-in-primary-cells-using-raman-spectroscopy
#3
Stephanie J Smith, Roger Emery, Andrew Pitsillides, Claire E Clarkin, Sumeet Mahajan
Major challenges in the development of novel implant surfaces for artificial joints include osteoblast heterogeneity and the lack of a simple and sensitive in vitro assay to measure early osteogenic responses. Raman spectroscopy is a label-free, non-invasive and non-destructive vibrational fingerprinting optical technique that is increasingly being applied to detect biochemical changes in cells. In this study Raman spectroscopy has been used to obtain bone cell-specific spectral signatures and to identify any changes therein during osteoblast commitment and differentiation of primary cells in culture...
May 15, 2017: Analyst
https://www.readbyqxmd.com/read/28502983/alkaline-phosphatase-a-novel-treatment-target-for-cardiovascular-disease-in-ckd
#4
REVIEW
Mathias Haarhaus, Vincent Brandenburg, Kamyar Kalantar-Zadeh, Peter Stenvinkel, Per Magnusson
Cardiovascular disease is the main cause of early death in the settings of chronic kidney disease (CKD), type 2 diabetes mellitus (T2DM), and ageing. Cardiovascular events can be caused by an imbalance between promoters and inhibitors of mineralization, which leads to vascular calcification. This process is akin to skeletal mineralization, which is carefully regulated and in which isozymes of alkaline phosphatase (ALP) have a crucial role. Four genes encode ALP isozymes in humans. Intestinal, placental and germ cell ALPs are tissue-specific, whereas the tissue-nonspecific isozyme of ALP (TNALP) is present in several tissues, including bone, liver and kidney...
May 15, 2017: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/28501773/trpv4-functions-in-flow-shear-stress-induced-early-osteogenic-differentiation-of-human-bone-marrow-mesenchymal-stem-cells
#5
Kongzu Hu, Heyan Sun, Binjie Gui, Cong Sui
Mechanical cues have been shown to induce osteogenic differentiation of bone marrow stromal cells (MSCs). The TRPV4 channel, a Ca(2+)-permeable membrane ion channel, is implicated in the transduction of external mechanical stimulation into specific intracellular responses in a wide variety of bone cells. However, the role of TRPV4 in transducing and regulating the differentiation of human MSCs in response to flow shear stress (FSS) is unclear. In this study, using FSS and calcium imaging, we demonstrated that FSS activated early osteogenic differentiation, as shown by the early osteogenic differentiation marker osterix (Osx) and alkaline phosphatase (ALP) staining...
May 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28496198/bone-forming-peptide-2-derived-from-bmp-7-enhances-osteoblast-differentiation-from-multipotent-bone-marrow-stromal-cells-and-bone-formation
#6
Hyung Keun Kim, Jun Sik Lee, Ji Hyun Kim, Jong Keun Seon, Kyung Soon Park, Myung Ho Jeong, Taek Rim Yoon
Strategies for efficient osteogenic differentiation and bone formation from stem cells would have clinical applications in treating nonunion fracture healing. Many researchers have attempted to develop adjuvants as specific stimulators of bone formation for therapeutic use in patients with bone resorption. Therefore, development of specific stimulators of bone formation has therapeutic significance in the treatment of osteoporosis. To date, investigations of the mature forms of bone morphogenetic proteins (BMPs) have focused on regulation of bone generation...
May 12, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28493412/reassessment-of-alkaline-phosphatase-as-serum-tumor-marker-with-high-specificity-in-osteosarcoma
#7
Seung Hyun Kim, Kyoo-Ho Shin, Seong-Hwan Moon, Jinyoung Jang, Hyo Song Kim, Jin-Suck Suh, Woo-Ick Yang
The goal of this study was to reassess serum alkaline phosphatase (ALP) as tumor marker in osteosarcoma. We retrospectively examined serum ALP levels at diagnosis, every therapeutic step (neoadjuvant chemotherapy, surgery, and adjuvant chemotherapy), metastasis, and follow-up and analyzed the role of ALP as tumor marker in 210 osteosarcomas. The diagnostic performances of ALP were validated with pathology-proven 899 other primary bone lesions. Elevated ALP at diagnosis was associated with inferior overall survival (OS) (Log Rank P < 0...
May 11, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28484088/radium-223-for-primary-bone-metastases-in-patients-with-hormone-sensitive-prostate-cancer-after-radical-prostatectomy
#8
Vera Wenter, Annika Herlemann, Wolfgang P Fendler, Harun Ilhan, Natalia Tirichter, Peter Bartenstein, Christian G Stief, Christian la Fougère, Nathalie L Albert, Axel Rominger, Christian Gratzke
Radium-223 dichloride (Ra-223) is the first bone-targeting agent showing improvement in overall survival in patients with castration-resistant prostate cancer (CRPC) and bone metastases. We aimed to assess feasibility of Ra-223 treatment in patients with metastatic hormone-sensitive prostate cancer (mHSPC). Ten patients with primary bone metastases received Ra-223 following radical prostatectomy (RP). Changes in alkaline phosphatase (ALP) and prostate-specific antigen (PSA) were recorded, while pain intensity was evaluated using the self-reporting Brief Pain Inventory (BPI) questionnaire...
April 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28482581/novel-layered-double-hydroxides-hydroxyapatite-gelatin-bone-tissue-engineering-scaffolds-fabrication-characterization-and-in-vivo-study
#9
Fateme Fayyazbakhsh, Mehran Solati-Hashjin, Abbas Keshtkar, Mohammad Ali Shokrgozar, Mohammad Mehdi Dehghan, Bagher Larijani
Developing porous biodegradable scaffolds through simple methods is one of the main approaches of bone tissue engineering (BTE). In this work, a novel BTE composite containing layered double hydroxides (LDH), hydroxyapatite (HA) and gelatin (GEL) was fabricated using co-precipitation and solvent-casting methods. Physiochemical characterizations showed that the chemical composition and microstructure of the scaffolds were similar to the natural spongy bone. Interconnected macropores ranging over 100 to 600μm were observed for both scaffolds while the porosity of 90±0...
July 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28482552/alkaline-phosphatase-binds-tenaciously-to-titanium-implications-for-biological-surface-evaluation-following-bone-implant-retrieval
#10
J P Mansell, A I Shiel, C Harwood, D Stephens
Enhancing the performance and longevity of titanium (Ti) implants continues to be a significant developmental theme in contemporary biomaterials design. Our specific focus pertains to the surface functionalisation of Ti using the bioactive lipid, lysophosphatidic acid (LPA) and certain phosphatase-resistant analogues of LPA. Coating survivorship to a plethora of testing regimens is required to align with due regulatory process before novel biomaterials can enter clinical trials. One of the key acceptance criteria is coating retention to the physical stresses experienced during implantation...
July 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28473963/rank-ligand-and-osteoprotegerin-as-biomarkers-in-the-differentiation-between-periprosthetic-joint-infection-and-aseptic-prosthesis-loosening
#11
Max J Friedrich, Matthias D Wimmer, Jan Schmolders, Andreas C Strauss, Milena M Ploeger, Hendrik Kohlhof, Dieter C Wirtz, Sascha Gravius, Thomas M Randau
AIM: To assess serum levels of RANK-ligand (RANKL) and osteoprotegerin (OPG) as biomarkers for periprosthetic joint infection (PJI) and compare their accuracy with standard tests. METHODS: One hundred and twenty patients presenting with a painful total knee or hip arthroplasty with indication for surgical revision were included in this prospective clinical trial. Based on standard diagnostics (joint aspirate, microbiological, and histological samples) and Musculoskeletal Infection Society consensus classification, patients were categorized into PJI, aseptic loosening, and control groups...
April 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28455660/radial-artery-sclerostin-expression-in-chronic-kidney-disease-stage-5-predialysis-patients-a-cross-sectional-observational-study
#12
Hua Zhou, Min Yang, Min Li, Li Cui
PURPOSE: Bone metabolism disorder is often associated with cardiovascular calcification in patients with chronic kidney disease (CKD). Sclerostin, a novel candidate protein, has been identified to be involved in the bone-vascular axis. The aims of the current investigation were to assess vessel sclerostin expression and its relationship with circulating sclerostin levels. METHODS: A cross-sectional observational study was conducted from January 2012 to December 2014...
April 28, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28453701/an-exploratory-analysis-of-alkaline-phosphatase-lactate-dehydrogenase-and-prostate-specific-antigen-dynamics-in-the-phase-3-alsympca-trial-with-radium-223
#13
O Sartor, R E Coleman, S Nilsson, D Heinrich, S I Helle, J M O'Sullivan, N J Vogelzang, Ø Bruland, S Kobina, S Wilhelm, L Xu, M Shan, M W Kattan, C Parker
Background: Baseline clinical variables are prognostic for overall survival (OS) in patients with castration-resistant prostate cancer (CRPC). Their prognostic and predictive value with agents targeting bone metastases, such as radium-223, is not established. Patients and methods: The radium-223 ALSYMPCA trial enrolled patients with CRPC and symptomatic bone metastases. Prognostic potential of baseline variables was assessed using Cox models. Percentage changes in biomarker levels from baseline were evaluated during the trial period; changes from baseline to week 12 were evaluated for association with OS and surrogacy...
May 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28448457/effects-of-vitamin-d-supplementation-on-bone-turnover-markers-a-randomized-controlled-trial
#14
Verena Schwetz, Christian Trummer, Marlene Pandis, Martin R Grübler, Nicolas Verheyen, Martin Gaksch, Armin Zittermann, Winfried März, Felix Aberer, Angelika Lang, Gerlies Treiber, Claudia Friedl, Barbara Obermayer-Pietsch, Thomas R Pieber, Andreas Tomaschitz, Stefan Pilz
Bone turnover markers (BTMs) are used to evaluate bone health together with bone mineral density and fracture assessment. Vitamin D supplementation is widely used to prevent and treat musculoskeletal diseases but existing data on vitamin D effects on markers of bone resorption and formation are inconsistent. We therefore examined the effects of vitamin D supplementation on bone-specific alkaline phosphatase (bALP), osteocalcin (OC), C-terminal telopeptide (CTX), and procollagen type 1 N-terminal propeptide (P1NP)...
April 27, 2017: Nutrients
https://www.readbyqxmd.com/read/28445604/investigating-the-effect-of-fibulin-1-on-the-differentiation-of-human-nasal-inferior-turbinate-derived-mesenchymal-stem-cells-into-osteoblasts
#15
Le B Hang Pham, Yie-Ri Yoo, Sun Hwa Park, Sang A Back, Sung Won Kim, Isabel Bjørge, Jun-Hyeog Jang
Many extracellular matrix proteins have positive influences on the adhesion, proliferation and differentiation of stem cells into specific cell linages. Fibulin-1 (FBLN1), a member of a growing family of extracellular glycoproteins, contributes to the structure of the extracellular matrix. Here, we investigated the effect of FBLN1 on the ability of human nasal inferior turbinate-derived mesenchymal stem cells (hTMSCs) to undergo osteogenic differentiation. After we generated recombinant FBLN1, the characteristics of FBLN1-treated hTMSCs were evaluated using MTT assay, ALP and mineralization activities, and quantitative real-time PCR...
April 26, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28445262/dose-dependence-of-pth-related-peptide-1-on-the-osteogenic-induction-of-mc3t3-e1-cells-in-vitro
#16
Jianping Wang, Jingfeng Li, Liang Yang, Yichi Zhou, Yi Wang
Parathyroid hormone (PTH), an 84-amino acid peptide, is an endocrine hormone that is secreted by parathyroid glands. PTH performs important functions in calcium regulation and bone remodeling. The PTH (1-34) named teriparatide, a 34-amino acid peptide derived from the N-terminus of PTH, conserves most of the functions of PTH, specifically the osteogenic capability. However, teriparatide is only used by injection and exhibits short duration. In addition, this PTH could not thoroughly expose active sites. In this study, a novel PTH-related peptide (designated PTHrP-1) derived from the N-terminus of PTH was added into the complete medium at different concentrations of PTHrP-1 (0, 50, 100, and 200 ng/mL) to induce the MC3T3-E1 cells...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28442927/mechanical-factors-and-vitamin-d-deficiency-in-schoolchildren-with-low-back-pain-biochemical-and-cross-sectional-survey-analysis
#17
Ahmad H Alghadir, Sami A Gabr, Einas S Al-Eisa
OBJECTIVE: This study was designed to evaluate the role of vitamin D, muscle fatigue biomarkers, and mechanical factors in the progression of low back pain (LBP) in schoolchildren. BACKGROUND: Children and adolescents frequently suffer from LBP with no clear clinical causes, and >71% of schoolchildren aged 12-17 years will show at least one episode of LBP. MATERIALS AND METHODS: A total of 250 schoolchildren aged 12-16 years were randomly enrolled in this study...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28436937/efficacy-of-anti-sclerostin-monoclonal-antibody-bps804-in-adult-patients-with-hypophosphatasia
#18
Lothar Seefried, Jasmin Baumann, Sarah Hemsley, Christine Hofmann, Erdmute Kunstmann, Beate Kiese, Yue Huang, Simon Chivers, Marie-Anne Valentin, Babul Borah, Ronenn Roubenoff, Uwe Junker, Franz Jakob
BACKGROUND: Hypophosphatasia (HPP) is a rare genetic disorder resulting in variable alterations of bone formation and mineralization that are caused by mutations in the ALPL gene, encoding the tissue-nonspecific alkaline phosphatase (ALP) enzyme. METHODS: In this phase IIA open-label, single-center, intra-patient, dose-escalating study, adult patients with HPP received 3 ascending intravenous doses of 5, 10, and 20 mg/kg BPS804, a fully human anti-sclerostin monoclonal antibody, on days 1, 15, and 29, respectively...
April 24, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28431568/a-case-report-of-severe-calciphylaxis-suggested-approach-for-diagnosis-and-treatment
#19
Margret Patecki, Gabriele Lehmann, Jan Hinrich Bräsen, Jessica Schmitz, Anna Bertram, Lars Daniel Berthold, Hermann Haller, Wilfried Gwinner
BACKGROUND: Calciphylaxis is a serious complication in patients with chronic kidney disease associated mineral and bone disorder. It can occur in conditions with low and high bone turnover. So far, there are no definite diagnostic and therapeutic guidelines which may prevent the devastating outcome in many calciphylaxis patients. We report a case which clearly illustrates that knowledge of the underlying bone disorder is essential for a directed treatment. Based on this experience we discuss a systematic diagnostic and therapeutic approach in patients with calciphylaxis...
April 21, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28429547/the-use-of-bone-turnover-markers-in-chronic-kidney-disease-mineral-and-bone-disorders
#20
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
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