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Orthopedic stem cell

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https://www.readbyqxmd.com/read/28098961/angiogenic-and-osteogenic-regeneration-in-rats-via-calcium-phosphate-scaffold-and-endothelial-cell-coculture-with-hbmscs-hucmscs-hipsc-mscs-and-hesc-mscs
#1
Wenchuan Chen, Xian Liu, Qianmin Chen, Chongyun Bao, Liang Zhao, Zhimin Zhu, Hockin H K Xu
Angiogenesis is a limiting factor in regenerating large bone defects. The objective of this study was to investigate angiogenic and osteogenic effects of coculture on calcium phosphate cement (CPC) scaffold using human umbilical vein endothelial cells (hUVECs) and mesenchymal stem cells (MSCs) from different origins for the first time. hUVECs were cocultured with four types of cells: human umbilical cord MSCs (hUCMSCs), human bone marrow MSCs (hBMSCs), and MSCs from induced pluripotent stem cells (hiPSC-MSCs) and embryonic stem cells (hESC-MSCs)...
January 18, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28093363/alignment-of-collagen-fiber-in-knitted-silk-scaffold-for-functional-massive-rotator-cuff-repair
#2
Zefeng Zheng, Jisheng Ran, Weishan Chen, Yejun Hu, Ting Zhu, Xiao Chen, Zi Yin, Boon Chin Heng, Gang Feng, Huihui Le, Chenqi Tang, Jiayun Huang, Yangwu Chen, Yiting Zhou, Pioletti Dominique, Weiliang Shen, Hong-Wei Ouyang
: Rotator cuff tear is one of the most common types of shoulder injuries, often resulting in pain and physical debilitation. Allogeneic tendon-derived decellularized matrices do not have appropriate pore size and porosity to facilitate cell infiltration, while commercially-available synthetic scaffolds are often inadequate at inducing tenogenic differentiation. The aim of this study is to develop an advanced 3D aligned collagen/silk scaffold (ACS) and investigate its efficacy in a rabbit massive rotator cuff tear model...
January 13, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28018908/partial-cranial-cruciate-ligament-tears-treated-with-stem-cell-and-platelet-rich-plasma-combination-therapy-in-36-dogs-a-retrospective-study
#3
Sherman O Canapp, Christopher S Leasure, Catherine Cox, Victor Ibrahim, Brittany J Carr
OBJECTIVE: To evaluate outcomes in 36 dogs with a partial cranial cruciate ligament (CCL) tear treated with autologous bone marrow aspirate concentrate (BMAC) or adipose-derived progenitor cells (ADPC) with platelet-rich plasma (PRP) combination. MATERIALS AND METHODS: Medical records of client-owned dogs diagnosed with an early partial (≤50%) tear of the craniomedial band of the CCL that was treated with BMAC-PRP or ADPC-PRP were reviewed from 2010 to 2015. Signalment, medical history, physical and orthopedic examination, objective temporospatial gait analyses, radiographs, day 0 and day 90 diagnostic arthroscopy findings, treatment, and outcome were among the data collected...
2016: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/27998240/superparamagnetic-iron-oxide-nanoparticles-in-musculoskeletal-biology
#4
Shama R Iyer, Su Xu, Joseph P Stains, Craig H Bennett, Richard M Lovering
The use of platelet-rich plasma and mesenchymal stem cells has garnered much attention in orthopedic medicine, focusing on the biological aspects of cell function. However, shortly after systemic delivery, or even a local injection, few of the transplanted stem cells or platelets remain at the target site. Improvement in delivery, and the ability to track and monitor injected cells, would greatly improve clinical translation. Nanoparticles can effectively and quickly label most cells in vitro, and evidence to date suggests such labeling does not compromise the proliferation or differentiation of cells...
January 11, 2017: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/27987073/comparison-of-four-protocols-to-generate-chondrocyte-like-cells-from-human-induced-pluripotent-stem-cells-hipscs
#5
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/27986082/mesenchymal-stem-cells-as-therapeutic-target-of-biophysical-stimulation-for-the-treatment-of-musculoskeletal-disorders
#6
REVIEW
Marco Viganò, Valerio Sansone, Maria Cristina d'Agostino, Pietro Romeo, Carlotta Perucca Orfei, Laura de Girolamo
BACKGROUND: Musculoskeletal disorders are regarded as a major cause of worldwide morbidity and disability, and they result in huge costs for national health care systems. Traditional therapies frequently turned out to be poorly effective in treating bone, cartilage, and tendon disorders or joint degeneration. As a consequence, the development of novel biological therapies that can treat more effectively these conditions should be the highest priority in regenerative medicine. Mesenchymal stem cells (MSCs) represent one of the most promising tools in musculoskeletal tissue regenerative medicine, thanks to their proliferation and differentiation potential and their immunomodulatory and trophic ability...
December 16, 2016: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/27932702/incorporation-of-cerium-oxide-into-hydroxyapatite-coating-regulates-osteogenic-activity-of-mesenchymal-stem-cell-and-macrophage-polarization
#7
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/27895107/long-noncoding-rna-h19-accelerates-tenogenic-differentiation-and-promotes-tendon-healing-through-targeting-mir-29b-3p-and-activating-tgf-%C3%AE-1-signaling
#8
Ying-Fei Lu, Yang Liu, Wei-Ming Fu, Jia Xu, Bin Wang, Yu-Xin Sun, Tian-Yi Wu, Liang-Liang Xu, Kai-Ming Chan, Jin-Fang Zhang, Gang Li
Tendon injures are common orthopedic conditions, but tendon development and the pathogenesis of tendon injures, such as tendinopathy, remain largely unknown and have limited the development of clinical therapy. Studies on tenogenic differentiation at the molecular level may help in developing novel therapeutic strategies. As novel regulators, long noncoding RNAs (lncRNAs) have been found to have widespread biological functions, and emerging evidence demonstrates that lncRNAs may play important regulatory roles in cell differentiation and tissue regeneration...
November 28, 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27889558/the-periosteal-microcirculation-in-health-and-disease-an-update-on-clinical-significance
#9
REVIEW
Andrea Szabó, Ágnes Janovszky, Levente Pócs, Mihály Boros
Apart from its nutritive functions, the periosteum critically affects bone regeneration via its stem/osteoprogenitor cell content. Normal healing after bone fractures, trauma-orthopedic interventions and invasive dental procedures is critically linked to the reestablishment of the periosteal microcirculation, but the reconstruction, replacement or repair of lost tissues may also be performed with autologous periosteum. Besides the initiation of cell differentiation during bone repair and remodeling processes, the periosteum together with the endosteum plays significant roles in the pathogenesis of both hormone-related and trauma-induced osteoporotic alterations in the bone metabolism...
November 23, 2016: Microvascular Research
https://www.readbyqxmd.com/read/27871421/mesenchymal-stem-cell-bearing-sutures-for-tendon-repair-and-healing-in-the-foot-and-ankle
#10
REVIEW
Eric W Tan, Lew C Schon
Improving the quality and strength of soft tissue repairs remains an important area of orthopedic research and innovation. The need for immobilization and early motion is an important balance essential for the successful treatment of tendon repair and reconstruction. Mesenchymal stem cell (MSC)-bearing sutures represent an emerging biological augmentation to traditional suture repair. Two previous large studies using stem cell sutures in rat Achilles tendon models have demonstrated early increased biomechanical strength and significantly increased ultimate failure strength...
December 2016: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/27822310/anaphylactic-shock-during-cement-implantation-of-a-total-hip-arthroplasty-in-a-patient-with-underlying-mastocytosis-case-report-of-a-rare-intraoperative-complication
#11
Anita Ten Hagen, Pieter Doldersum, Tom van Raaij
BACKGROUND: Cemented total hip arthroplasty (THA) is a safe and common procedure. In rare cases life threatening bone cement implantation syndrome (BCIS) may occur, which is commonly caused by pulmonary embolism (PE). CASE PRESENTATION: We describe the rare case of a 70-year old patient who underwent an elective total hip replacement. Before surgery he was diagnosed with underlying systemic indolent mastocytosis, a rare pathological disorder that may result in anaphylaxis after massive systemic mast cell activation...
2016: Patient Safety in Surgery
https://www.readbyqxmd.com/read/27811389/hydrogel-fibers-encapsulating-human-stem-cells-in-an-injectable-calcium-phosphate-scaffold-for-bone-tissue-engineering
#12
Lin Wang, Ping Wang, Michael D Weir, Mark A Reynolds, Liang Zhao, Hockin H K Xu
Human induced pluripotent stem cells (hiPSCs), human embryonic stem cells (hESCs) and human umbilical cord mesenchymal stem cells (hUCMSCs) are exciting cell sources for use in regenerative medicine. There have been no reports on long hydrogel fibers encapsulating stem cells inside an injectable calcium phosphate cement (CPC) scaffold for bone tissue engineering. The objectives of this study were: (1) to develop a novel injectable CPC construct containing hydrogel fibers encapsulating cells for bone engineering, and (2) to investigate and compare cell viability, proliferation and osteogenic differentiation of hiPSC-MSCs, hESC-MSCs and hUCMSCs in injectable CPC...
November 4, 2016: Biomedical Materials
https://www.readbyqxmd.com/read/27789947/effects-of-nanoporous-anodic-titanium-oxide-on-human-adipose-derived-stem-cells
#13
Katarzyna Malec, Joanna Góralska, Magdalena Hubalewska-Mazgaj, Paulina Głowacz, Magdalena Jarosz, Pawel Brzewski, Grzegorz D Sulka, Marian Jaskuła, Iwona Wybrańska
The aim of current bone biomaterials research is to design implants that induce controlled, guided, successful, and rapid healing. Titanium implants are widely used in dental, orthopedic, and reconstructive surgery. A series of studies has indicated that cells can respond not only to the chemical properties of the biomaterial, but also, in particular, to the changes in surface topography. Nanoporous materials remain in focus of scientific queries due to their exclusive properties and broad applications. One such material is nanostructured titanium oxide with highly ordered, mutually perpendicular nanopores...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27788908/performing-a-better-bone-marrow-aspiration
#14
REVIEW
Mayo F Friedlis, Christopher J Centeno
Bone marrow aspiration (BMA) is increasingly being used to harvest stem cells for use in regenerative medicine. The focus of BMA in interventional orthopedics is to maximize the yield of mesenchymal stem cells. The authors present an improved method for BMA that involves fluoroscope or ultrasound guidance combined with anesthesia; in the authors' experience, it produces the highest possible stem cell yield and is well tolerated by patients. The authors provide a step-by-step guide to the process, along with a discussion of technical and other considerations and quick reference guides for ultrasound- and fluoroscope-guided BMA...
November 2016: Physical Medicine and Rehabilitation Clinics of North America
https://www.readbyqxmd.com/read/27786165/inflammatory-response-to-dextrin-based-hydrogel-associated-with-human-mesenchymal-stem-cells-urinary-bladder-matrix-and-bonelike-%C3%A2-granules-in-rat-subcutaneous-implants
#15
Dina M Silva, Ana Rita Caseiro, Irina Amorim, Isabel Pereira, Fátima Faria, Tiago Pereira, José Domingos Santos, Francisco Miguel Gama, Ana Colette Maurício
Increasing relevance has been attributed to hydrogels due to their ability to provide an extracellular matrix (ECM)-like environment for cellular adhesion and proliferation, acting as mechanical scaffolds for tissue remodeling or as delivery matrices. In vivo biocompatibility of a hybrid dextrin hydrogel produced from oxidized dextrin and adipic acid dihydrazide and its combinations with human mesenchymal stem cells (hMSCs), ECM from a porcine bladder (urinary bladder matrix) and ceramic granules (Bonelike(®)), was evaluated following ISO 10993 after subcutaneous implantation in a rat model...
October 27, 2016: Biomedical Materials
https://www.readbyqxmd.com/read/27783836/the-present-and-future-for-peripheral-nerve-regeneration
#16
Georgios N Panagopoulos, Panayiotis D Megaloikonomos, Andreas F Mavrogenis
Peripheral nerve injury can have a potentially devastating impact on a patient's quality of life, resulting in severe disability with substantial social and personal cost. Refined microsurgical techniques, advances in peripheral nerve topography, and a better understanding of the pathophysiology and molecular basis of nerve injury have all led to a decisive leap forward in the field of translational neurophysiology. Nerve repair, nerve grafting, and nerve transfers have improved significantly with consistently better functional outcomes...
October 25, 2016: Orthopedics
https://www.readbyqxmd.com/read/27781021/the-use-of-adipose-tissue-derived-progenitors-in-bone-tissue-engineering-a-review
#17
REVIEW
Indranil Bhattacharya, Chafik Ghayor, Franz E Weber
2500 years ago, Hippocrates realized that bone can heal without scaring. The natural healing potential of bone is, however, restricted to small defects. Extended bone defects caused by trauma or during tumor resections still pose a huge problem in orthopedics and cranio-maxillofacial surgery. Bone tissue engineering strategies using stem cells, growth factors, and scaffolds could overcome the problems with the treatment of extended bone defects. In this review, we give a short overview on bone tissue engineering with emphasis on the use of adipose tissue-derived stem cells and small molecules...
September 2016: Transfusion Medicine and Hemotherapy
https://www.readbyqxmd.com/read/27761846/the-effects-of-cerium-oxide-incorporation-in-calcium-silicate-coating-on-bone-mesenchymal-stem-cell-and-macrophage-responses
#18
Kai Li, Jiangming Yu, Youtao Xie, Mingyu You, Liping Huang, Xuebin Zheng
Ideal coatings for orthopedic implants should be able to induce excellent osseointegration with host bone tissue, which requires good osteogenic responses and limited inflammatory reactions. Cerium oxide (CeO2) ceramics have anti-oxidative properties and can be used to decrease mediators of inflammation, making them attractive for biomedical application. In this study, two kinds of CeO2 incorporated calcium silicate coatings (CS-10Ce and CS-30Ce) were prepared via plasma spraying technique, and the effects of CeO2 addition on the responses of bone mesenchymal stem cells (BMSCs) and RAW264...
October 20, 2016: Biological Trace Element Research
https://www.readbyqxmd.com/read/27743540/immobilization-of-alendronate-on-titanium-via-its-different-functional-groups-and-the-subsequent-effects-on-cell-functions
#19
Dong Zheng, Koon Gee Neoh, En-Tang Kang
Immobilization of alendronate on orthopedic implants offers the possibility of enhancing osteogenesis without potentially adverse effects associated with systemic administration of this drug. In this work, alendronate was immobilized on titanium (Ti) via either its phosphate (Method 1) or amino (Method 2) groups, and responses of osteoblasts and human mesenchymal stem cells (hMSCs) on these surfaces were investigated. These modified substrates have similar surface roughness and are negatively charged. With similar amounts of immobilized alendronate, these two types of modified substrates showed comparable osteogenic stimulating effects in enhancing osteoblasts' alkaline phosphatase (ALP) activity and calcium deposition for the first 10days...
February 1, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27725838/mesenchymal-stem-cells-subpopulations-application-for-orthopedic-regenerative-medicine
#20
Vanessa Pérez-Silos, Alberto Camacho-Morales, Lizeth Fuentes-Mera
Research on mesenchymal stem cells (MSCs) continues to progress rapidly. Nevertheless, the field faces several challenges, such as inherent cell heterogeneity and the absence of unique MSCs markers. Due to MSCs' ability to differentiate into multiple tissues, these cells represent a promising tool for new cell-based therapies. However, for tissue engineering applications, it is critical to start with a well-defined cell population. Additionally, evidence that MSCs subpopulations may also feature distinct characteristics and regeneration potential has arisen...
2016: Stem Cells International
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