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https://www.readbyqxmd.com/read/28098740/adult-scoliosis-deformity-surgery-comparison-of-outcomes-between-1-vs-2-attending-surgeons
#1
Jaime A Gomez, Virginie Lafage, Daniel M Scuibba, Shay Bess, Gregory M Mundis, Barthelemy Liabaud, Regina Hanstein, Christopher Shaffrey, Michael Kelly, Christopher Ames, Justin S Smith, Peter G Passias, Thomas Errico, Frank Schwab
STUDY DESIGN: Retrospective review of prospectively collected data. OBJECTIVE: Assess outcomes of adult spinal deformity (ASD) surgery performed by 1 vs. 2 attending surgeons. SUMMARY OF BACKGROUND DATA: ASD centers have developed 2-attending teams in order to improve efficiency; their effects on complications and outcomes have not been reported. METHODS: ASD patients with ≥5 levels fused and > 2-year follow-up were included...
January 16, 2017: Spine
https://www.readbyqxmd.com/read/28094240/ectopic-bone-formation-by-gel-derived-bioactive-glass-poly-l-lactide-co-glycolide-composites-in-a-rabbit-muscle-model
#2
Joanna Filipowska, Katarzyna Cholewa-Kowalska, Jarosław Wieczorek, Danuta Semik, Zbigniew Dąbrowski, Maria Łączka, Anna M Osyczka
In this study we aimed to assess the in vivo osteoinductive properties of two composite scaffolds made of PLGA (poly-L-lactide-co-glycolide) and two types of gel-derived bioactive glasses, namely a high silica S2 bioactive glass (S2-PLGA composites) or high lime A2 bioactive glass (A2-PLGA composites). To achieve that, the potential of the composites to induce ectopic bone formation in a rabbit muscle has been examined along with the control PLGA scaffold. Cylinder-like scaffolds of 7  ×  3 mm (width  ×  height) were implanted into pouches created in the latissimus dorsi muscle of 18 New Zealand rabbits...
January 17, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28060176/bone-morphogenetic-proteins-in-pediatric-spinal-arthrodesis-a-statewide-analysis-of-trends-and-outcome-of-utilization
#3
Benedict U Nwachukwu, William W Schairer, Ting Pan, Roger F Widmann, John S Blanco, Daniel W Green, Stephen Lyman, Emily R Dodwell
INTRODUCTION: Bone morphogenetic protein (BMP) is considered off-label when used to augment spinal arthrodesis in children and adolescents. There is a paucity of longer-term information on BMP use in this population. The purpose of this study was to determine the rate of BMP utilization in pediatric spinal arthrodesis, assess factors associated with BMP use in this population, and evaluate long-term outcome. METHODS: Spinal arthrodeses in patients 18 years and younger performed in New York State between 2004 and 2014 were identified through the Statewide Planning and Research Cooperative System database...
January 5, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28051358/controlled-retention-of-bmp-2-derived-peptide-on-nanofibers-based-on-mussel-inspired-adhesion-for-bone-formation
#4
Jinkyu Lee, Sajeesh Kumar Mp, Taufiq Ahmad, Min Suk Lee, Heeseok Yang, Do-Gyoon Kim, Kyobum Kim, Bosun Kwon, Heungsoo Shin
Although bone morphogenetic protein-2 (BMP-2) has been frequently used to stimulate bone formation, it has several side effects to be addressed, including the difficulty in optimization of clinically relevant doses and unwanted induction of cancerous signaling processes. In this study, an osteogenic peptide (OP) derived from BMP-2 was investigated as a substitute for BMP-2. In vitro studies showed that OP was able to enhance in the osteogenic differentiation and mineralization of human mesenchymal stem cells (hMSCs)...
January 4, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28041327/bone-graft-options-for-spinal-fusion-following-resection-of-spinal-column-tumors-systematic-review-and-meta-analysis
#5
Benjamin D Elder, Wataru Ishida, C Rory Goodwin, Ali Bydon, Ziya L Gokaslan, Daniel M Sciubba, Jean-Paul Wolinsky, Timothy F Witham
OBJECTIVE With the advent of new adjunctive therapy, the overall survival of patients harboring spinal column tumors has improved. However, there is limited knowledge regarding the optimal bone graft options following resection of spinal column tumors, due to their relative rarity and because fusion outcomes in this cohort are affected by various factors, such as radiation therapy (RT) and chemotherapy. Furthermore, bone graft options are often limited following tumor resection because the use of local bone grafts and bone morphogenetic proteins (BMPs) are usually avoided in light of microscopic infiltration of tumors into local bone and potential carcinogenicity of BMP...
January 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28040085/upper-limb-non-unions-treated-with-bmp-7-efficacy-and-clinical-results
#6
Rahul Singh, Sabri Bleibleh, Nikolaos K Kanakaris, Peter V Giannoudis
The management of upper limb non-unions can be challenging and often with unpredictable outcomes. In this study we present our experience with the use of BMP-7 in the treatment of upper limb non-unions. Between 2004 and 2011 all consecutive patients who were treated with BMP-7 were followed up prospectively until fracture union. Fracture union was assessed with regular radiological and clinical assessment. At the final follow up clinical assessment included the short Disabilities of the Arm, Shoulder and Hand (DASH) score...
December 2016: Injury
https://www.readbyqxmd.com/read/28040077/closing-the-gap-a-novel-technique-for-humeral-shaft-nonunions-using-cup-and-cone-reamers
#7
Brian T Nickel, Mitchell R Klement, Marc J Richard, Robert Zura, Grant E Garrigues
INTRODUCTION: Nonunion following closed treatment of humeral shaft fracture is estimated to be 5.5%. Many surgical techniques have been described to address humeral shaft nonunion including: open reduction, internal fixation (ORIF) with compression plating and bone graft, dual plating, cortical strut allograft and autograft, and adding biologic augmentation (BMP). The current standard of care includes ORIF with compression plating and bone grafting, but even this technique has an approximated 10% failure rate...
December 2016: Injury
https://www.readbyqxmd.com/read/28039430/inflammation-and-vascular-smooth-muscle-cell-dedifferentiation-following-carotid-artery-ligation
#8
Brian Paul Herring, April M Hoggatt, Sarah L Griffith, Jeanette N McClintick, Patricia Jane Gallagher
OBJECTIVE: Following vascular injury medial smooth muscle cells dedifferentiate and migrate through the internal elastic lamina where they form a neointima. The goal of the current study was to identify changes in gene expression that occur prior to the development of neointima and are associated with the early response to injury. Approach and Results: Vascular injury was induced in C57Bl/6 mice and in Myh11-creER(T2) mTmG reporter mice by complete ligation of the left carotid artery...
December 30, 2016: Physiological Genomics
https://www.readbyqxmd.com/read/28038401/thermochemical-pretreatment-and-anaerobic-digestion-of-dairy-cow-manure-experimental-and-economic-evaluation
#9
Fabiana Passos, Valentina Ortega, Andrés Donoso-Bravo
The aim of this study was to assess technically and economically the application thermochemical pretreatment in the anaerobic digestion of dairy cow manure. After selecting the optimum substrate to inoculum (S/I) ratio in a preliminary BMP test, the following tests compared 20 different pretreatment conditions varying temperature (100 and 37°C), exposure time (5 and 30min and 12 and 24h) and chemical doses (0.5, 2, 6 and 10% of HCl or NaOH). The highest value of maximum production rate was achieved at an S/I ratio of 0...
March 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28035406/bambi-inhibits-inflammation-through-the-activation-of-autophagy-in-experimental-spinal-cord-injury
#10
Yin Yang, Chunyang Guo, Bo Liao, Junjun Cao, Chen Liang, Xijing He
Autophagy plays an important role in the progression of spinal cord injury (SCI). In this study, we aimed to examine the effects and potential mechanisms of action of BMP and activin membrane-bound inhibitor (BAMBI) in the progression of SCI. A rat model of SCI was established and the rats were injected with pLentiH1-BAMBI shRNA and pAd-BAMBI in the gray and white matter of the spinal cord at T8. After 14 days, motor function evaluation was measured according to the Basso Beattie Bresnahan (BBB) method and the number of motor neuron cell accounts in the anterior horns was measured by Nissl staining...
February 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28032906/3-dimensional-functionalized-polycaprolactone-hyaluronic-acid-hydrogel-constructs-for-bone-tissue-engineering
#11
Stephen M Hamlet, Cedryck Vaquette, Amit Shah, Dietmar W Hutmacher, Saso Ivanovski
AIM: Alveolar bone regeneration remains a significant clinical challenge in periodontology and dental implantology. This study assessed the mineralized tissue forming potential of 3D printed medical grade polycaprolactone (mPCL) constructs containing osteoblasts encapsulated in a hyaluronic acid (HA) hydrogel incorporating bone morphogenetic protein-7 (BMP-7). MATERIALS AND METHODS: HA-hydrogels containing human osteoblasts ± BMP-7 were prepared. Cell viability, osteogenic gene expression, mineralized tissue formation and BMP-7 release in vitro, were assessed by fluorescence staining, RT-PCR, histological / μ-CT examination and ELISA respectively...
December 29, 2016: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28031424/the-dart-study-results-from-the-dose-escalation-and-expansion-cohorts-evaluating-the-combination-of-dalantercept-plus-axitinib-in-advanced-renal-cell-carcinoma
#12
Martin H Voss, Rupal S Bhatt, Elizabeth R Plimack, Brian I Rini, Robert S Alter, J Thaddeus Beck, Dawn Wilson, Xiaosha Zhang, Musa Mutyaba, Chad Glasser, Kenneth M Attie, Matthew L Sherman, Shuchi S Pandya, Michael Atkins
PURPOSE: Activin receptor-like kinase 1 (ALK1) is a novel target in angiogenesis. Concurrent targeting of ALK1 and vascular endothelial growth factor (VEGF) signaling results in augmented inhibition of tumor growth in renal cell carcinoma (RCC) xenograft models. Dalantercept is an ALK1 receptor-fusion protein that acts as a ligand trap for bone morphogenetic proteins (BMP) 9 and 10. The DART Study evaluated the safety, tolerability, pharmacokinetics, pharmacodynamics, and antitumor activity of dalantercept plus axitinib in patients with advanced RCC and determined the optimal dose for further testing...
December 28, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28017615/pharmacological-activation-of-aldehyde-dehydrogenase-2-promotes-osteoblast-differentiation-via-bone-morphogenetic-protein-2-and-induces-bone-anabolic-effect
#13
Monika Mittal, Subhashis Pal, Shyamsundar Pal China, Konica Porwal, Kapil Dev, Richa Shrivastava, Kanumuri Siva Rama Raju, Mamunur Rashid, Arun Kumar Trivedi, Sabyasachi Sanyal, Muhammad Wahajuddin, Smrati Bhaduria, Rakesh Maurya, Naibedya Chattopadhyay
Aldehyde dehydrogenases (ALDHs) are a family of enzymes involved in detoxifying aldehydes. Previously, we reported that an ALDH inhibitor, disulfiram caused bone loss in rats and among ALDHs, osteoblast expressed only ALDH2. Loss-of-function mutation in ALDH2 gene is reported to cause bone loss in humans which suggested its importance in skeletal homeostasis. We thus studied whether activating ALDH2 by N-(1, 3-benzodioxol-5-ylmethyl)-2, 6-dichlorobenzamide (alda-1) had osteogenic effect. We found that alda-1 increased and acetaldehyde decreased the differentiation of rat primary osteoblasts and expressions of ALDH2 and bone morphogenetic protein-2 (BMP-2)...
December 23, 2016: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28004822/mass-spectrometry-imaging-of-biomarker-lipids-for-phagocytosis-and-signalling-during-focal-cerebral-ischaemia
#14
Mette M B Nielsen, Kate L Lambertsen, Bettina H Clausen, Morten Meyer, Dhaka R Bhandari, Søren T Larsen, Steen S Poulsen, Bernhard Spengler, Christian Janfelt, Harald S Hansen
Focal cerebral ischaemia has an initial phase of inflammation and tissue injury followed by a later phase of resolution and repair. Mass spectrometry imaging (desorption electrospray ionization and matrix assisted laser desorption ionization) was applied on brain sections from mice 2 h, 24 h, 5d, 7d, and 20d after permanent focal cerebral ischaemia. Within 24 h, N-acyl-phosphatidylethanolamines, lysophosphatidylcholine, and ceramide accumulated, while sphingomyelin disappeared. At the later resolution stages, bis(monoacylglycero)phosphate (BMP(22:6/22:6)), 2-arachidonoyl-glycerol, ceramide-phosphate, sphingosine-1-phosphate, lysophosphatidylserine, and cholesteryl ester appeared...
December 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27995357/bone-morphogenetic-protein-modulator-bmper-regulates-endothelial-barrier-function
#15
Thomas Helbing, Gwendoline Wiltgen, Alexandra Hornstein, Elena Z Brauers, Linus Arnold, Adrian Bauer, Jennifer S Esser, Philipp Diehl, Sebastian Grundmann, Katrin Fink, Cam Patterson, Christoph Bode, Martin Moser
The endothelium serves as a selective barrier and controls the exchange of nutrients, hormones, and leukocytes between blood and tissues. Molecular mechanisms contributing to the pathogenesis of endothelial barrier dysfunction remain incompletely understood. Accumulating evidence implicates bone morphogenetic protein (BMP)-modulator BMPER as a key regulator in endothelial biology. Herein, we analyze the impact of BMPER in the control of endothelial barrier function. To assess the role of BMPER in vascular barrier function in mice, we measured the leakage of Evans blue dye from blood into interstitial lung tissue...
December 19, 2016: Inflammation
https://www.readbyqxmd.com/read/27994786/bone-morphogenic-protein-is-a-viable-adjunct-for-fusion-in-minimally-invasive-transforaminal-lumbar-interbody-fusion
#16
M Mashfiqul Arafin Siddiqui, Ana Rosario P Sta Ana, William Yeo, Wai-Mun Yue
STUDY DESIGN: Comparison of prospectively collected data of patients undergoing minimally invasive surgery transforaminal lumbar interbody fusion (MIS-TLIF) with and without recombinant human bone morphogenic protein 2 (BMP). PURPOSE: To compare the clinical, radiological outcome and complications of patients undergoing MIS-TLIF with and without BMP. OVERVIEW OF LITERATURE: BMP is an effective fusion enhancer with potential complications. Direct comparison of MIS-TLIF with and without BMP is limited to retrospective studies with short follow-up...
December 2016: Asian Spine Journal
https://www.readbyqxmd.com/read/27988355/agmatine-modulates-melanogenesis-via-mitf-signaling-pathway
#17
Eun-Jeong Kwon, Moon-Moo Kim
Agmatine contained in soybean is also found in Manaca, an anti-aging plant, inhabited in Amazon and induces vasodilation by the promotion of NO synthesis in blood vessel. However, the research of agmatine on melanin synthesis related to hair greying is lacking. The aim of this study was to investigate the melanogenic effect of agmatine via regulation of MITF signaling pathway in B16F1 cells. It was determined whether agmatine regulates melanin synthesis at cellular level in addition to the effect of agmatine on mushroom tyrosinase in vitro in the presence of different concentrations of agmatine...
December 13, 2016: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/27965139/physiological-exercise-loading-suppresses-post-traumatic-osteoarthritis-progression-via-an-increase-in-bone-morphogenetic-proteins-expression-in-an-experimental-rat-knee-model
#18
H Iijima, A Ito, M Nagai, J Tajino, S Yamaguchi, W Kiyan, A Nakahata, J Zhang, T Wang, T Aoyama, K Nishitani, H Kuroki
OBJECTIVE: To evaluate the dose-response relationship of exercise loading in the cartilage-subchondral bone (SB) unit in surgically-induced post-traumatic osteoarthritis (PTOA) of the knee. DESIGN: Destabilized medial meniscus (DMM) surgery was performed on the right knee of 12-week-old male Wistar rats, and sham surgery was performed on the contralateral knee. Four weeks after the surgery, the animals were subjected to moderate (12 m/min) or intense (21 m/min) treadmill exercises for 30 min/day, 5 days/week for 4 weeks...
December 10, 2016: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/27932702/incorporation-of-cerium-oxide-into-hydroxyapatite-coating-regulates-osteogenic-activity-of-mesenchymal-stem-cell-and-macrophage-polarization
#19
Kai Li, Qingyi Shen, Youtao Xie, Mingyu You, Liping Huang, Xuebin Zheng
Biomedical coatings for orthopedic implants should facilitate osseointegration and mitigate implant-induced inflammatory reactions. Cerium oxide (CeO2) ceramics possess anti-oxidative properties and can be used to decrease mediators of inflammation, which makes them attractive for biomedical applications. In our work, two kinds of CeO2 incorporated hydroxyapatite coatings (HA-10Ce and HA-30Ce) were prepared via plasma spraying technique and the effects of CeO2 addition on the responses of bone mesenchymal stem cells (BMSCs) and RAW264...
December 8, 2016: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/27922109/regulation-of-hepcidin-expression-by-inflammation-induced-activin-b
#20
Yohei Kanamori, Makoto Sugiyama, Osamu Hashimoto, Masaru Murakami, Tohru Matsui, Masayuki Funaba
Activin B is induced in response to inflammation in the liver and enhances hepcidin expression, but the source of activin B and the molecular mechanism underlying hepcidin induction are not clear yet. Lipopolysaccharide (LPS)-induced inflammation induced inhibin βB but not inhibin α or inhibin βA expression in the liver, implicating activin B induction. Immunoreactive inhibin βB was detected in endothelial cells and Kupffer cells in LPS-treated liver. Activin B, but not activin A or activin AB, directly increased hepcidin expression...
December 6, 2016: Scientific Reports
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