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https://www.readbyqxmd.com/read/28102172/dr-j%C3%A3-zef-aleksiewicz-activity-in-support-of-the-development-of-orthopedics-and-rehabilitation-in-iwonicz-zdr%C3%A3-j-1921-1957
#1
Sławomir Jandziś, Stanisław Zaborniak
Based on source materials in the possession of Józef Aleksiewicz family (typescripts, manuscripts, photographs, other documents) and articles published in professional medical journals and newspapers, the authors present the contribution of Dr. J. Aleksiewicz to the development of orthopedics and rehabilitation in Iwonicz-Zdrój. In May 1921, he was appointed Surgeon General of the Spa Commission in Iwonicz-Zdrój. After holding several scholarly trips abroad in 1925 to sanatoriums treating cases of osteo-articular tuberculosis, he commenced the construction of "Sanato", a modern sanatorium...
August 30, 2016: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28068081/peptide-decorated-nanofibrous-niche-augments-in-vitro-directed-osteogenic-conversion-of-human-pluripotent-stem-cells
#2
Yi Deng, Yuanyi Yang, Shicheng Wei
Realization of clinical potential of human pluripotent stem cells (hPSCs) in bone regenerative medicine requires development of simple and safe biomaterials for expansion of hPSCs followed by directing their lineage commitment to osteoblasts. In the present study, a chemically defined peptide-decorated polycaprolactone (PCL) nanofibrous microenvironment was prepared through electrospinning technology and subsequent conjugation with vitronectin peptide to promote the culture and osteogenic potential of hPSCs in vitro...
January 9, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28064220/gene-expression-analysis-of-cultured-rat-endothelial-cells-after-nd-yag-laser-irradiation-by-affymetrix-genechip-array
#3
Yoshiko Masuda, Satoshi Yokose, Hiroshi Sakagami
Endothelial cells and dental pulp cells enhance osteo-/odontogenic and angiogenic differentiation. In our previous study, rat pulp cells migrated to Nd:YAG laser-irradiated endothelial cells in an insert cell culture system. The purpose of this study was to examine the possible changes in the gene expression of cultured rat aortic endothelial cells after Nd:YAG laser irradiation using affymetrix GeneChip Array. Total RNA was extracted from the cells at 5 h after laser irradiation. Gene expressions were evaluated by DNA array chip...
January 2017: In Vivo
https://www.readbyqxmd.com/read/28060333/mesenchymal-stromal-cell-culture-and-delivery-in-autologous-conditions-a-smart-approach-for-orthopedic-applications
#4
Luisa Trombi, Serena Danti, Sara Savelli, Stefania Moscato, Delfo D'Alessandro, Claudio Ricci, Stefano Giannotti, Mario Petrini
Human Mesenchymal Stromal Cells (hMSCs) are cultured in vitro with different media. Limits on their use in clinical settings, however, mainly depend on potential biohazard and inflammation risks exerted by xenogeneic nutrients for their culture. Human derivatives or recombinant materials are the first choice candidates to reduce these reactions. Therefore, culture supplements and materials of autologous origin represent the best nutrients and the safest products. Here, we describe a new protocol for the isolation and culture of bone marrow hMSCs in autologous conditions - namely, patient-derived serum as a supplement for the culture medium and fibrin as a scaffold for hMSC administration...
December 8, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28054496/tailoring-exercise-interventions-to-comorbidities-and-treatment-induced-adverse-effects-in-patients-with-early-stage-breast-cancer-undergoing-chemotherapy-a-framework-to-support-clinical-decisions
#5
Marike van der Leeden, Rosalie J Huijsmans, Edwin Geleijn, Mariëtte de Rooij, Inge R Konings, Laurien M Buffart, Joost Dekker, Martijn M Stuiver
PURPOSE: Delivery of exercise interventions to patients with early-stage breast cancer undergoing chemotherapy requires complex clinical decisions. The purpose of this study was to develop a framework to support clinical decisions for tailoring exercise interventions to common comorbidities and cancer treatment-induced adverse effects. METHOD: Tailored exercise prescriptions were developed in four steps, following the i3-S strategy. All steps were based on current best available evidence, complemented with expert opinions...
January 5, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28027822/semaphorin-4d-enhances-angiogenic-potential-and-suppresses-osteo-odontogenic-differentiation-of-human-dental-pulp-stem-cells
#6
Ting Zou, Waruna Lakmal Dissanayaka, Shan Jiang, Shuai Wang, Boon Chin Heng, Xiaojing Huang, Chengfei Zhang
INTRODUCTION: To investigate the roles of semaphorin 4D (Sema4D)/plexin-B1 signaling on the angiogenic potential and osteo-/odontogenic differentiation of human dental pulp stem cells (DPSCs) and to uncover the corresponding molecular mechanisms. METHODS: DPSCs were treated with Sema4D (10 μg/mL) for different time durations. Osteo-/odontogenic differentiation was assessed by quantifying alkaline phosphatase activity, mineralized nodule formation, and osteo-/odontogenic gene (ALP, Col1A1, BSP, RUNX2, and DSPP) and protein (Col1A1 and DSPP) expression...
December 24, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/28027692/comparison-of-3d-printed-poly-%C3%AE%C2%B5-caprolactone-scaffolds-functionalized-with-tricalcium-phosphate-hydroxyapatite-bio-oss-or-decellularized-bone-matrix
#7
Ethan Nyberg, Alexandra Rindone, Amir Dorafshar, Warren L Grayson
3D-printing facilitates rapid, custom manufacturing of bone scaffolds with a wide range of material choices. Recent studies have demonstrated the potential for 3D-printing bioactive (i.e. osteo-inductive) scaffolds for use in bone regeneration applications. In this study, we 3D-printed porous poly-ϵ-caprolactone (PCL) scaffolds using a fused deposition modeling (FDM) process and functionalized them with mineral additives that have been widely used commercially and clinically: tricalcium phosphate (TCP), hydroxyapatite (HA), Bio-Oss (BO) or decellularized bone matrix (DCB)...
December 27, 2016: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28003071/editorial-commentary-bulk-osteochondral-talar-grafts-compromise-future-arthrodesis-or-prosthesis
#8
EDITORIAL
C Niek van Dijk
In general, osteochondral allograft should include minimal "osteo" or bone. In cases that require a bulk allograft, even after creeping substitution and healing, most of the graft remains dead bone. Bulk dead bone is a particular problem in the talus, should a patient need revision to a prosthesis or arthrodesis. As an alternative, drilling, bone grafting, and fixation of existing cartilage, when possible, is preferred.
January 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27990446/the-superior-regenerative-potential-of-muscle-derived-stem-cells-for-articular-cartilage-repair-is-attributed-to-high-cell-survival-and-chondrogenic-potential
#9
Hongshuai Li, Aiping Lu, Ying Tang, Sarah Beckman, Naoki Nakayama, Minakshi Poddar, MaCalus V Hogan, Johnny Huard
Three populations of muscle-derived cells (PP1, PP3, and PP6) were isolated from mouse skeletal muscle using modified preplate technique and retrovirally transduced with BMP4/GFP.  In vitro, the PP1 cells (fibroblasts) proliferated significantly slower than the PP3 (myoblasts) and PP6 cells (muscle-derived stem cells); the PP1 and PP6 cells showed a superior rate of survival compared with PP3 cells under oxidative stress; and the PP6 cells showed significantly superior chondrogenic capabilities than PP1 and PP3 cells...
2016: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/27987073/comparison-of-four-protocols-to-generate-chondrocyte-like-cells-from-human-induced-pluripotent-stem-cells-hipscs
#10
Wiktoria Maria Suchorska, Ewelina Augustyniak, Magdalena Richter, Tomasz Trzeciak
Stem cells (SCs) are a promising approach to regenerative medicine, with the potential to treat numerous orthopedic disorders, including osteo-degenerative diseases. The development of human-induced pluripotent stem cells (hiPSCs) has increased the potential of SCs for new treatments. However, current methods of differentiating hiPSCs into chondrocyte-like cells are suboptimal and better methods are needed. The aim of the present study was to assess four different chondrogenic differentiation protocols to identify the most efficient method of generating hiPSC-derived chondrocytes...
December 16, 2016: Stem Cell Reviews
https://www.readbyqxmd.com/read/27984337/inhibition-of-osteo-chondrogenic-transformation-of-vascular-smooth-muscle-cells-by-mgcl2-via-calcium-sensing-receptor
#11
Ioana Alesutan, Rashad Tuffaha, Tilman Auer, Martina Feger, Burkert Pieske, Florian Lang, Jakob Voelkl
OBJECTIVES: The progression of vascular calcification, an active process promoted by osteo/chondrogenic transformation of vascular smooth muscle cells (VSMCs) is attenuated by activation of the calcium-sensing receptor (CASR). Recent in-vitro studies revealed that vascular calcification could be blunted by Mg, but the underlying mechanisms remained elusive. The present study explored whether the effects of MgCl2 on vascular calcification involve the CASR. METHODS: Experiments were performed in primary human aortic smooth muscle cells (HAoSMCs) and in the mouse vascular calcification model of vitamin D3 overload...
December 15, 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27981785/morphological-study-ultrastructural-aspects-of-articular-cartilage-and-sub-chondral-bone-in-patients-affected-by-post-traumatic-shoulder-instability
#12
Paolo Baudi, Fabio Catani, Manuela Rebuzzi, Marzia Ferretti, Alberto Smargiassi, Gabriele Campochiaro, Fabio Serafini, Carla Palumbo
Post-traumatic shoulder instability is a frequent condition in active population, representing one of most disabling pathologies, due to altered balance involving joints. No data are so far available on early ultrastructural osteo-chondral damages, associated with the onset of invalidating pathologies, like osteoarthritis-OA. Biopsies of glenoid articular cartilage and sub-chondral bone were taken from 10 adult patients underwent arthroscopic stabilization. Observations were performed under Transmission Electron Microscopy-TEM in tangential, arcuate and radial layers of the articular cartilage and in the sub-chondral bone...
December 16, 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27971683/medical-costs-attributable-to-obesity-in-working-osteo-arthritis-patients-in-the-us
#13
Y C Choi, S H Lee, Y J Lee, S Lee, S J Lim, D Suh
No abstract text is available yet for this article.
November 2016: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/27959374/nanoporous-microstructures-mediate-osteogenesis-by-modulating-the-osteo-immune-response-of-macrophages
#14
Zetao Chen, Siyu Ni, Shengwei Han, Ross Crawford, Shifeier Lu, Fei Wei, Jiang Chang, Chengtie Wu, Yin Xiao
The osteoimmune environment plays indispensable roles in bone regeneration because the early immune environment that exists during the regenerative process promotes the recruitment and differentiation of osteoblastic lineage cells. The response of immune cells growing on nanotopographic surfaces and the microenvironment they generate should be considered when evaluating nanotopography-mediated osteogenesis, which are topics that are generally neglected in the field. In this study, we investigated the modulatory effects of nanoporous anodic alumina with different sized pores on macrophage responses and their subsequent effects on the osteogenic differentiation of bone marrow stromal cells (BMSCs)...
December 13, 2016: Nanoscale
https://www.readbyqxmd.com/read/27935005/preoperative-low-level-laser-therapy-in-dogs-undergoing-tibial-plateau-levelling-osteotomy-a-blinded-prospective-randomized-clinical-trial
#15
Cleo P Rogatko, Wendy I Baltzer, Rachel Tennant
OBJECTIVES: To evaluate the influence of preoperative low-level laser therapy (LLLT) on therapeutic outcomes of dogs undergoing tibial plateau levelling osteotomy (TPLO). METHODS: Healthy dogs undergoing TPLO were randomly assigned to receive either a single preoperative LLLT treatment (800-900 nm dual wavelength, 6 W, 3.5 J/cm(2), 100 cm(2) area) or a sham treatment. Lameness assessment and response to manipulation, as well as force plate analysis, were performed preoperatively, then again at 24 hours, two weeks, and eight weeks postoperatively...
December 9, 2016: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/27906060/discrete-adipose-derived-stem-cell-subpopulations-may-display-differential-functionality-after-in-vitro-expansion-despite-convergence-to-a-common-phenotype-distribution
#16
Frederik Mølgaard Nielsen, Simone Elkjær Riis, Jens Isak Andersen, Raphaëlle Lesage, Trine Fink, Cristian Pablo Pennisi, Vladimir Zachar
BACKGROUND: Complex immunophenotypic repertoires defining discrete adipose-derived stem cell (ASC) subpopulations may hold a key toward identifying predictors of clinical utility. To this end, we sorted out of the freshly established ASCs four subpopulations (SPs) according to a specific pattern of co-expression of six surface markers, the CD34, CD73, CD90, CD105, CD146, and CD271, using polychromatic flow cytometry. METHOD: Using flow cytometry-associated cell sorting and analysis, gating parameters were set to select for a CD73(+)CD90(+)CD105(+) phenotype plus one of the four following combinations, CD34(-)CD146(-)CD271(-) (SP1), CD34(-)CD146(+)CD271(-) (SP2), CD34(+)CD146(+)CD271(-) (SP3), and CD34(-)CD146(+)CD271(+) (SP4)...
December 1, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27905670/induced-pluripotent-stem-cells-as-a-new-getaway-for-bone-tissue-engineering-a-systematic-review
#17
REVIEW
Farshid Bastami, Pantea Nazeman, Hamidreza Moslemi, Maryam Rezai Rad, Kazem Sharifi, Arash Khojasteh
OBJECTIVES: Mesenchymal stem cells (MSCs) are frequently used for bone regeneration, however, they are limited in quantity. Moreover, their proliferation and differentiation capabilities reduce during cell culture expansion. Potential application of induced pluripotent stem cells (iPSCs) has been reported as a promising alternative source for bone regeneration. This study aimed to systematically review the available literature on osteogenic potential of iPSCs and to discuss methods applied to enhance their osteogenic potential...
December 1, 2016: Cell Proliferation
https://www.readbyqxmd.com/read/27897128/defining-the-limits-of-endoscopic-access-to-internal-auditory-canal
#18
Adam Master, Mickie Hamiter, Maura Cosetti
OBJECTIVE: To quantify surgical access to the internal auditory canal (IAC) using an exclusively endoscopic transcanal approach (EETA) and investigate surgically relevant relationships with neurovascular and osseous landmarks of the temporal bone. MATERIALS AND METHODS: Anatomical dissection of two paired temporal bones and 15 unpaired temporal bones was performed using an exclusively endoscopic approach to IAC. The dissection proceeded until the cerebellopontine angle (CPA) could be accessed...
November 28, 2016: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/27892651/fumarate-copolymer-chitosan-cross-linked-scaffold-directed-to-osteochondrogenic-tissue-engineering
#19
María Laura Lastra, María Silvina Molinuevo, Ana María Cortizo, María Susana Cortizo
Natural and synthetic cross-linked polymers allow the improvement of cytocompatibility and mechanical properties of the individual polymers. In osteochondral lesions of big size it will be required the use of scaffolds to repair the lesion. In this work a borax cross-linked scaffold based on fumarate-vinyl acetate copolymer and chitosan directed to osteochondrondral tissue engineering is developed. The cross-linked scaffolds and physical blends of the polymers are analyzed in based on their morphology, glass transition temperature, and mechanical properties...
November 28, 2016: Macromolecular Bioscience
https://www.readbyqxmd.com/read/27891511/diagnostic-value-of-ct-arthrography-for-evaluation-of-osteochondral-lesions-at-the-ankle
#20
Jan S Kirschke, Sepp Braun, Thomas Baum, Christian Holwein, Christoph Schaeffeler, Andreas B Imhoff, Ernst J Rummeny, Klaus Woertler, Pia M Jungmann
Background. To retrospectively determine the diagnostic value of computed tomography arthrography (CTA) of the ankle in the evaluation of (osteo)chondral lesions in comparison to conventional magnetic resonance imaging (MRI) and intraoperative findings. Methods. A total of N = 79 patients had CTAs and MRI of the ankle; in 17/79 cases surgical reports with statements on cartilage integrity were available. Cartilage lesions and bony defects at talus and tibia were scored according to defect depth and size by two radiologists...
2016: BioMed Research International
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