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Cartilage repair and damage

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https://www.readbyqxmd.com/read/28629234/healing-of-osteochondral-defects-via-endochondral-ossification-in-an-ovine-model
#1
Helen Lydon, Alan Getgood, Frances M D Henson
OBJECTIVE: The objective of this study was to describe the mechanism of healing of osteochondral defects of the distal femur in the sheep, a commonly used translational model. Information on the healing mechanism be useful to inform the design of tissue engineering devices for joint surface defect repair. DESIGN: A retrospective study was conducted examining 7-mm diameter osteochondral defects made in the distal medial femoral condyle of 40 adult female sheep, comprising control animals from 3 separate structures...
June 1, 2017: Cartilage
https://www.readbyqxmd.com/read/28623328/platelet-rich-plasma-induces-post-natal-maturation-of-immature-articular-cartilage-and-correlates-with-loxl1-activation
#2
Yadan Zhang, Ben J Morgan, Rachel Smith, Christopher R Fellows, Catherine Thornton, Martyn Snow, Lewis W Francis, Ilyas M Khan
Platelet-rich plasma (PRP) is used to stimulate the repair of acute and chronic cartilage damage even though there is no definitive evidence of how this is achieved. Chondrocytes in injured and diseased situations frequently re-express phenotypic biomarkers of immature cartilage so tissue maturation is a potential pathway for restoration of normal structure and function. We used an in vitro model of growth factor-induced maturation to perform a comparative study in order to determine whether PRP can also induce this specific form of remodeling that is characterised by increased cellular proliferation and tissue stiffness...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28612705/treatment-of-acetabular-chondral-lesions-with-microfracture-technique
#3
Claudio Mella, Alvaro Nuñez, Ignacio Villalón
INTRODUCTION: Acetabular cartilage lesions are frequently found during hip arthroscopy. In the hip joint they mostly occur secondary to a mechanical overload resulting from a pre-existing deformity as hip dysplasia or femoroacetabular impingement (FAI). Lesions identified during arthroscopy can vary greatly from the earliest stages to the most advanced (full-thickness lesions). These lesions occur in the acetabulum in the early stages of joint damage. Microfractures are indicated in full-thickness chondral defects...
2017: SICOT-J
https://www.readbyqxmd.com/read/28612704/cartilage-status-in-fai-patients-results-from-the-danish-hip-arthroscopy-registry-dhar
#4
Bent Lund, Torsten Grønbech Nielsen, Martin Lind
INTRODUCTION: The femoroacetabular impingement (FAI) morphology is associated with specific cartilage lesions, which are suspected to be early stages of the osteoarthritic development, which can be the end result of FAI. The cartilage status of FAI afflicted hip joints at the time of arthroscopic management is not fully elucidated. This study from the Danish Hip Arthroscopy Registry (DHAR) will try to show data on the cartilage status from a large cohort. Data from a national registry potentially represent large amounts of population-based epidemiological information from multiple centres and surgeons...
2017: SICOT-J
https://www.readbyqxmd.com/read/28605000/hip-arthroscopy-in-patients-less-than-25-years-of-age-in-the-treatment-of-labral-tears-aetiology-and-clinical-outcomes
#5
Gillian Bayley, Stephane Poitras, Gillian Parker, Paul E Beaulé
BACKGROUND: Hip arthroscopy has evolved into a well-established and rapidly growing field of orthopedic surgery for the management of labral tears. The purpose of this study was to review clinical outcomes of patients less than 25 years of age undergoing hip arthroscopy for treatment of a labral tear. METHODS: From 2005 to 2013, 82 hips in 76 patients with mean age of 20.4 (16-25 range) underwent hip arthroscopy for treatment of labral-chondral damage. The Western Ontario McMaster Universities Osteoarthritis Index (WOMAC) and hip disability and osteoarthritis outcome score (HOOS) were recorded at latest follow-up...
June 7, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28602577/fabrication-of-porous-scaffolds-with-decellularized-cartilage-matrix-for-tissue-engineering-application
#6
Bita Nasiri, Shohreh Mashayekhan
Due to the avascular nature of articular cartilage, damaged tissue has little capacity for spontaneous healing. Three-dimensional scaffolds have potential for use in tissue engineering approach for cartilage repair. In this study, bovine cartilage tissue was decellularized and chemically crosslinked hybrid chitosan/extracellular matrix (ECM) scaffolds were fabricated with different ECM weight ratios by simple freeze drying method. Various properties of chitosan/ECM scaffolds such as microstructure, mechanical strength, swelling ratio, and biodegradability rate were investigated to confirm improved structural and biological characteristics of chitosan scaffolds in the presence of ECM...
June 8, 2017: Biologicals: Journal of the International Association of Biological Standardization
https://www.readbyqxmd.com/read/28597211/characterization-and-use-of-equine-bone-marrow-mesenchymal-stem-cells-in-equine-cartilage-engineering-study-of-their-hyaline-cartilage-forming-potential-when-cultured-under-hypoxia-within-a-biomaterial-in-the-presence-of-bmp-2-and-tgf-%C3%A3-1
#7
Thomas Branly, Lélia Bertoni, Romain Contentin, Rodolphe Rakic, Tangni Gomez-Leduc, Mélanie Desancé, Magalie Hervieu, Florence Legendre, Sandrine Jacquet, Fabrice Audigié, Jean-Marie Denoix, Magali Demoor, Philippe Galéra
Articular cartilage presents a poor capacity for self-repair. Its structure-function are frequently disrupted or damaged upon physical trauma or osteoarthritis in humans. Similar musculoskeletal disorders also affect horses and are the leading cause of poor performance or early retirement of sport- and racehorses. To develop a therapeutic solution for horses, we tested the autologous chondrocyte implantation technique developed on human bone marrow (BM) mesenchymal stem cells (MSCs) on horse BM-MSCs. This technique involves BM-MSC chondrogenesis using a combinatory approach based on the association of 3D-culture in collagen sponges, under hypoxia in the presence of chondrogenic factors (BMP-2 + TGF-β1) and siRNA to knockdown collagen I and HtrA1...
June 9, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28597065/cellular-and-molecular-pathways-of-structural-damage-in-rheumatoid-arthritis
#8
REVIEW
Ulrike Harre, Georg Schett
Structural damage of cartilage and bone tissue is a hallmark of rheumatoid arthritis (RA). The resulting joint destruction constitutes one of the major disease consequences for patients and creates a significant burden for the society. The main cells executing bone and cartilage degradation are osteoclasts and fibroblast-like synoviocytes, respectively. The function of both cell types is heavily influenced by the immune system. In the last decades, research has identified several mediators of structural damage, ranging from infiltrating immune cells and inflammatory cytokines to autoantibodies...
June 8, 2017: Seminars in Immunopathology
https://www.readbyqxmd.com/read/28595567/cartilage-tissue-regeneration-the-roles-of-cells-stimulating-factors-and-scaffolds
#9
Kui Huang, Qing Li, Yong Li, Zhihao Yao, Daowen Luo, Pengcheng Rao, Jingang Xiao
Cartilage tissue engineering is an emerging technique for the regeneration of cartilage tissue damaged as a result of trauma or disease. As the propensity for healing and regenerative capabilities of articular cartilage are limited, its repair remains one of the most challenging issues of musculoskeletal medicine. Clinical treatments intended to promote the success and complete repair of partial- and full-thickness articular cartilage defects are still unpredictable. However, one of the most exciting theories is that treatment of damaged articular cartilage can be realized with cartilage tissue engineering...
June 7, 2017: Current Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28589876/short-term-results-after-arthroscopic-resection-of-synovial-plicae-in-the-radiohumeral-joint-a-case-series-of-64-procedures
#10
Jens Brahe Pedersen, Pia Kjær Kristensen, Peter Mønsted, Theis Muncholm Thillemann
INTRODUCTION: Painful Synovial Plicae (SP) in the posterolateral corner of the radiohumeral joint may be confused with lateral epicondylitis. The SP may impinge between the radial head and the humeral capitellum causing pain and snapping. The aim of this study was to evaluate the short-term results after arthroscopic plica resection of the elbow. METHODS: In this case series, we included a consecutive series of 64 arthroscopies (60 patients) with arthroscopic plica resection of the elbow...
2017: SICOT-J
https://www.readbyqxmd.com/read/28584674/injectable-hydrogels-for-cartilage-and-bone-tissue-engineering
#11
REVIEW
Mei Liu, Xin Zeng, Chao Ma, Huan Yi, Zeeshan Ali, Xianbo Mou, Song Li, Yan Deng, Nongyue He
Tissue engineering has become a promising strategy for repairing damaged cartilage and bone tissue. Among the scaffolds for tissue-engineering applications, injectable hydrogels have demonstrated great potential for use as three-dimensional cell culture scaffolds in cartilage and bone tissue engineering, owing to their high water content, similarity to the natural extracellular matrix (ECM), porous framework for cell transplantation and proliferation, minimal invasive properties, and ability to match irregular defects...
2017: Bone Research
https://www.readbyqxmd.com/read/28557557/subsequent-surgery-after-revision-anterior-cruciate-ligament-reconstruction-rates-and-risk-factors-from-a-multicenter-cohort
#12
David Y Ding, Alan L Zhang, Christina R Allen, Allen F Anderson, Daniel E Cooper, Thomas M DeBerardino, Warren R Dunn, Amanda K Haas, Laura J Huston, Brett Brick A Lantz, Barton Mann, Kurt P Spindler, Michael J Stuart, Rick W Wright, John P Albright, Annunziato Ned Amendola, Jack T Andrish, Christopher C Annunziata, Robert A Arciero, Bernard R Bach, Champ L Baker, Arthur R Bartolozzi, Keith M Baumgarten, Jeffery R Bechler, Jeffrey H Berg, Geoffrey A Bernas, Stephen F Brockmeier, Robert H Brophy, Charles A Bush-Joseph, J Brad Butler, John D Campbell, James L Carey, James E Carpenter, Brian J Cole, Jonathan M Cooper, Charles L Cox, R Alexander Creighton, Diane L Dahm, Tal S David, David C Flanigan, Robert W Frederick, Theodore J Ganley, Elizabeth A Garofoli, Charles J Gatt, Steven R Gecha, James Robert Giffin, Sharon L Hame, Jo A Hannafin, Christopher D Harner, Norman Lindsay Harris, Keith S Hechtman, Elliott B Hershman, Rudolf G Hoellrich, Timothy M Hosea, David C Johnson, Timothy S Johnson, Morgan H Jones, Christopher C Kaeding, Ganesh V Kamath, Thomas E Klootwyk, Bruce A Levy, C Benjamin Ma, G Peter Maiers, Robert G Marx, Matthew J Matava, Gregory M Mathien, David R McAllister, Eric C McCarty, Robert G McCormack, Bruce S Miller, Carl W Nissen, Daniel F O'Neill, Brett D Owens, Richard D Parker, Mark L Purnell, Arun J Ramappa, Michael A Rauh, Arthur C Rettig, Jon K Sekiya, Kevin G Shea, Orrin H Sherman, James R Slauterbeck, Matthew V Smith, Jeffrey T Spang, Steven J Svoboda, Timothy N Taft, Joachim J Tenuta, Edwin M Tingstad, Armando F Vidal, Darius G Viskontas, Richard A White, James S Williams, Michelle L Wolcott, Brian R Wolf, James J York
BACKGROUND: While revision anterior cruciate ligament reconstruction (ACLR) can be performed to restore knee stability and improve patient activity levels, outcomes after this surgery are reported to be inferior to those after primary ACLR. Further reoperations after revision ACLR can have an even more profound effect on patient satisfaction and outcomes. However, there is a current lack of information regarding the rate and risk factors for subsequent surgery after revision ACLR. PURPOSE: To report the rate of reoperations, procedures performed, and risk factors for a reoperation 2 years after revision ACLR...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28551055/fresh-osteochondral-allografts-procurement-and-tissue-donation-in-europe
#13
S Schmidt, A Schulte, S Schwarz, N Hofmann, S Tietz, M Boergel, S U Sixt
Fresh osteochondral allografts are a well-established treatment for large, full-thickness cartilage defects. The clinical outcome for carefully selected patients is very favorable, especially for the young and active and graft survival up to 25 years has been described in the literature. Furthermore, a high patient satisfaction rate has been reported, but the biggest obstacle to overcome is the availability of tissue for transplantation. Large fresh bone allografts for cartilage damage repair only can be harvested from organ donors following organ removal or cadaveric donors, preferably in the setting of an operation room to minimize possible contamination of the tissue...
May 11, 2017: Injury
https://www.readbyqxmd.com/read/28548713/co-culture-systems-based-strategies-for-articular-cartilage-tissue-engineering
#14
REVIEW
Yu Zhang, Shuyun Liu, Weimin Guo, Mingjie Wang, Chunxiang Hao, Shuang Gao, Xueliang Zhang, Li Xu, Mingxue Chen, Li Penghao, Peng Jiang, Shibi Lu, Quanyi Guo
Cartilage engineering facilitates repair and regeneration of damaged cartilage using engineered tissue that restores the functional properties of the impaired joint. The seed cells used most frequently in tissue engineering, are chondrocytes and mesenchymal stem cells. Seed cells activity plays a key role in the regeneration of functional cartilage tissue. However, seed cells undergo undesirable changes after in vitro processing procedures, such as degeneration of cartilage cells and induced hypertrophy of mesenchymal stem cells, which hinder cartilage tissue engineering...
May 26, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28542924/effects-of-mechanical-loading-on-human-mesenchymal-stem-cells-for-cartilage-tissue-engineering
#15
REVIEW
Jane Ru Choi, Kar Wey Yong, Jean Yu Choi
Today, articular cartilage damage is a major health problem, affecting people of all ages. The existing conventional articular cartilage repair techniques, such as autologous chondrocyte implantation (ACI), microfracture, and mosaicplasty, have many shortcomings which negatively affect their clinical outcomes. Therefore, it is essential to develop an alternative and efficient articular repair technique that can address those shortcomings. Cartilage tissue engineering, which aims to create a tissue-engineered cartilage derived from human mesenchymal stem cells (MSCs), shows great promise for improving articular cartilage defect therapy...
May 19, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28513840/histomorphology-and-innate-immunity-during-the-progression-of-osteoarthritis-does-synovitis-affect-cartilage-degradation
#16
Huan Wang, Qingguo Wang, Meijuan Yang, Lili Yang, Weili Wang, Haobin Ding, Dong Zhang, Jing Xu, Xuezhang Tang, Haitao Ding, Qingfu Wang
Osteoarthritis (OA) is a common chronic degenerative disease that affects all joints. At present, the pathological processes and mechanisms of OA are still unclear. Innate immunity, a key player in damage to the structure of the joint and the mechanism by which the host attempts to repair OA, affects all pathological stages of the disease. In the present study, our aim was to assess changes in innate immunity during the pathological processes of OA in articular cartilage (AC) and the synovial membrane (SM), which are the major structures in joints, and to systematically examine the histological changes in AC and SM in mild, moderate and severe cases of OA, in order to further speculate about the manner in which the interactions of AC and SM are facilitated by innate immunity...
May 17, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28492349/a-novel-compressive-stress-based-osteoarthritis-like-chondrocyte-system
#17
In-Chi Young, Sung-Ting Chuang, Amit Gefen, Wei-Ting Kuo, Chun-Ting Yang, Chia-Hsien Hsu, Feng-Huei Lin
Mechanical stress damage and insufficient self-repair can contribute to osteoarthritis (OA) in the affected joint. As the effects of stress on chondrocyte metabolism can regulate cartilage homeostasis, the specific stress-response condition is therefore a key to the generation of an OA disease model. We aimed to produce a specific stress- and cell-based OA model after evaluating the metabolic responses of chondrocytes in response to a series of static and cyclic compression stressors. A static load exceeding 40 psi initiated extracellular matrix (ECM) degradation through a decrease in the sulphated-glycosaminoglycan (GAG) content, upregulation of catabolic matrix metalloproteinase (MMP)-13 encoding gene expression, and downregulation of the ECM-related aggrecan and type II collagen encoding genes within 24 h...
May 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28474632/correlation-of-cartilage-metabolic-markers-antioxidants-with-the-severity-of-knee-osteoarthritis
#18
Sonam Choden Bhutia, Mingma Lhamu Sherpa, S K Dewan, T A Singh
Osteoarthritis is characterized by the degeneration of articular cartilage. Cartilage metabolic markers have been explored as possible markers for osteoarthritis, and osteogenic protein -1 (OP-1) has emerged out to play a major role in cartilage repair. Oxidative stress has been implicated as a mediator of cartilage damage in patients with osteoarthritis. The aim of this study was to correlate the cartilage metabolic markers and antioxidants with the severity of knee osteoarthritis.
December 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28469777/medial-tibial-subchondral-bone-is-the-key-target-for-extracorporeal-shockwave-therapy-in-early-osteoarthritis-of-the-knee
#19
Ching-Jen Wang, Jai-Hong Cheng, Chien-Yiu Huang, Shan-Ling Hsu, Fan-Yen Lee, Hon-Kan Yip
Extracorporeal shockwave therapy (ESWT) is a new non-invasive method to induce tissue regeneration and repair the damaged osteoarthritis (OA) of knee. Previous studies suggested subchondral bone as the key target for OA treatment. However, the relationship of the effect and different locations of subchondral bone is unknown. The purpose of the study was to investigate whether the subchondral bone of medial tibia as the target for ESWT in early OA knee treatment and compared with various locations on lateral tibia and femur condyles...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28434038/emerging-potential-of-gene-silencing-approaches-targeting-anti-chondrogenic-factors-for-cell-based-cartilage-repair
#20
REVIEW
Andrea Lolli, Letizia Penolazzi, Roberto Narcisi, Gerjo J V M van Osch, Roberta Piva
The field of cartilage repair has exponentially been growing over the past decade. Here, we discuss the possibility to achieve satisfactory regeneration of articular cartilage by means of human mesenchymal stem cells (hMSCs) depleted of anti-chondrogenic factors and implanted in the site of injury. Different types of molecules including transcription factors, transcriptional co-regulators, secreted proteins, and microRNAs have recently been identified as negative modulators of chondroprogenitor differentiation and chondrocyte function...
April 22, 2017: Cellular and Molecular Life Sciences: CMLS
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