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Articular cartilage

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https://www.readbyqxmd.com/read/29777422/patellofemoral-cartilage-repair
#1
REVIEW
Alexandre Barbieri Mestriner, Jakob Ackermann, Andreas H Gomoll
PURPOSE OF REVIEW: This review provides an overview of well-established and newly developed cartilage repair techniques for cartilage defects in the patellofemoral joint (PFJ). An algorithm will be presented for approaching cartilage defects considering the distinct anatomy of both the patellar and trochlear articular surfaces. RECENT FINDINGS: Recent studies on cartilage repair in the PFJ have demonstrated improved outcomes in an attempt to delay or obviate the need for arthroplasty, and improve symptoms in young patients...
May 18, 2018: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29777321/how-changes-in-interconnectivity-affect-the-bulk-properties-of-articular-cartilage-a-fibre-network-study
#2
M A Bilton, A Thambyah, R J Clarke
The remarkable compressive strength of articular cartilage arises from the mechanical interactions between the tension-resisting collagen fibrils and swelling proteoglycan proteins within the tissue. These interactions are facilitated by a significant level of interconnectivity between neighbouring collagen fibrils within the extracellular matrix. A reduction in interconnectivity is suspected to occur during the early stages of osteoarthritic degeneration. However, the relative contribution of these interconnections towards the bulk mechanical properties of articular cartilage has remained an open question...
May 18, 2018: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/29775757/molecular-characterization-of-physis-tissue-by-rna-sequencing
#3
Christopher R Paradise, Catalina Galeano-Garces, Daniela Galeano-Garces, Amel Dudakovic, Todd A Milbrandt, Daniel B F Saris, Aaron J Krych, Marcel Karperien, Gabriel B Ferguson, Denis Evseenko, Scott M Riester, Andre J van Wijnen, A Noelle Larson
The physis is a well-established and anatomically distinct cartilaginous structure that is crucial for normal long-bone development and growth. Abnormalities in physis function are linked to growth plate disorders and other pediatric musculoskeletal diseases. Understanding the molecular pathways operative in the physis may permit development of regenerative therapies to complement surgically-based procedures that are the current standard of care for growth plate disorders. Here, we performed next generation RNA sequencing on mRNA isolated from human physis and other skeletal tissues (e...
May 15, 2018: Gene
https://www.readbyqxmd.com/read/29775732/il4-10-fusion-protein-has-chondroprotective-anti-inflammatory-and-potentially-analgesic-effects-in-the-treatment-of-osteoarthritis
#4
C Steen-Louws, J Popov-Celeketic, S C Mastbergen, K Coeleveld, C E Hack, N Eijkelkamp, M Tryfonidou, S Spruijt, J A G van Roon, F P J G Lafeber
OBJECTIVE: Effective disease-modifying drugs for osteoarthritis (DMOAD) should preferably have chondroprotective, anti-inflammatory, and analgesic activity combined in a single molecule. We developed a fusion protein of IL4 and IL10 (IL4-10 FP), in which the biological activity of both cytokines is preserved. The present study evaluates the chondroprotective, anti-inflammatory, and analgesic activity of IL4-10 FP in in vitro and in vivo models of osteoarthritis. METHODS: Human osteoarthritic cartilage tissue and synovial tissue were cultured with IL4-10 FP...
May 15, 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29774751/evaluation-of-articular-cartilage-injury-using-computed-tomography-with-axial-traction-in-the-ankle-joint
#5
Tomoyuki Nakasa, Yasunari Ikuta, Mikiya Sawa, Masahiro Yoshikawa, Yusuke Tsuyuguchi, Yuki Ota, Munekazu Kanemitsu, Nobuo Adachi
BACKGROUND: Although chondral or osteochondral injuries are usually assessed by magnetic resonance imaging, its accuracy can be low, presumably related to the relatively thin cartilage layer and the close apposition of the cartilage of the talus and tibial plafond. We hypothesized that axial traction could provide a contrast between the articular cartilage and joint cavity, and it enabled the simultaneous evaluation of cartilage and subchondral bone. The purpose of this study was to assess the feasibility of using computed tomography (CT) imaging with axial traction for the diagnosis of articular cartilage injuries...
May 1, 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/29773097/polymorphism-in-rs2229783-of-the-alpha-1-xi-collagen-gene-is-associated-with-susceptibility-to-but-not-severity-of-kashin-beck-disease-in-a-northwest-chinese-han-population
#6
Xiao Wei Shi, Feng Zhang, Zhi Yan Li, Ai Li Lyu, Xiong Guo
A case-control study was conducted to investigate associations between organophosphate pesticide (OP) exposure, aggression, impulsivity, and attempted suicide. The purpose of this study was to explore whether genomic polymorphisms in the alpha 1(XI) collagen gene (COL11A1) were associated with the risk and severity of Kashin-Beck disease (KBD). Twenty-two single nucleotide polymorphisms (SNPs) in COL11A1 were genotyped in 274 KBD cases and 249 healthy controls using the Sequenom MassARRAY system. The expression of type XI collagen (COL11A) in the knee articular cartilage of 22 KBD patients and 21 controls was analyzed by immunohistochemistry...
April 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29772993/shoulder-lesion-in-a-69-year-old-woman
#7
Andrew J Hayden, Srinivas Kolla, Adele L Boskey, Steven Burekhovich, Chuanyong Lu, Michael Stracher, Aditya V Maheshwari
Milwaukee Shoulder Syndrome (MSS) is a painful progressive arthropathy in which hydroxyapatite crystal deposition in synovial tissue induces lysosomal release of collagenase and neutral proteases. These enzymes are destructive to periarticular tissue, including the synovium, articular cartilage, rotator cuff muscles, and the intrasynovial cortical bone. MSS predominantly occurring in women (90%) over the age of 70 years of age with a clinical history marked by recurrent joint effusions and pain, which classically worsens at night...
2018: Journal of Long-term Effects of Medical Implants
https://www.readbyqxmd.com/read/29772932/recent-advances-in-kartogenin-for-cartilage-regeneration
#8
Gaorui Cai, Wei Liu, Yong He, Jianghong Huang, Li Duan, Jianyi Xiong, Lijun Liu, Daping Wang
Either osteoarthritisor sports-related injuries can lead to cartilage defects,whereas both chondrocyte self-renewal and conventional treatments face limitations. In cartilage regenerative medicine, growth factors are commonly used to induce chondrogenic differentiation of stem cells. However, application of growth factors is confined by some drawbacks. Emerging small molecules are regarded as an alternative for cartilage regeneration. A recently discovered small-molecule compound, kartogenin (KGN), has been proven to be a chondrogenic and chondroprotective agent and is more effective in inducing cartilage regeneration when compared with growth factors...
May 18, 2018: Journal of Drug Targeting
https://www.readbyqxmd.com/read/29772338/hyaluronic-acid-an-efficient-biomacromolecule-for-treatment-of-inflammatory-skin-and-joint-diseases-a-review-of-recent-developments-and-critical-appraisal-of-preclinical-and-clinical-investigations
#9
REVIEW
Li Hui Chen, Jian Feng Xue, Zhi Yong Zheng, Muhammad Shuhaidi, Hnin Ei Thu, Zahid Hussain
Hyaluronic acid (HA) plays multifaceted role in regulating various biological processes and maintaining homeostasis into the body. Numerous researches evidenced the biomedical implications of HA in skin repairmen, cancer prognosis, wound healing, tissue regeneration, anti-inflammatory, immunomodulation. The present review was aimed to summarize and critically appraise the recent developments and efficacy of HA for treatment of inflammatory skin and joint diseases. A thorough analysis of the literature revealed that HA based formulations (i...
May 14, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29771996/annexin-a6-regulates-catabolic-events-in-articular-chondrocytes-via-the-modulation-of-nf-%C3%AE%C2%BAb-and-wnt-%C3%A3-catenin-signaling
#10
Takeshi Minashima, Thorsten Kirsch
Annexin A6 (AnxA6) is expressed in articular chondrocytes at levels higher than in other mesenchymal cell types. However, the role of AnxA6 in articular chondrocytes is not known. Here we show that complete lack of AnxA6 functions resulted in increased ß-catenin activation in Wnt3a-treated murine articular chondrocytes, whereas AnxA6 expressing articular chondrocytes showed decreased ß-catenin activation. High expression of AnxA6 in human articular chondrocytes showed the highest inhibition of Wnt/ß-catenin signaling...
2018: PloS One
https://www.readbyqxmd.com/read/29770844/effect-of-arthroscopic-resection-for-discoid-lateral-meniscus-on-the-axial-alignment-of-the-lower-limb
#11
Puyan Zhang, Qichun Zhao, Xifu Shang, Yingming Wang
PURPOSE: This study was designed to investigate the changes in the lower limb axial alignment and knee joint function after arthroscopic resection of discoid lateral menisci. METHODS: Pre-operative and post-operative full-length weight-bearing radiographs of the lower limb were obtained from 60 patients with discoid lateral menisci from August 2015 to August 2016. Twenty-four patients were treated with meniscectomy and 36 cases were treated with meniscoplasty. The axial alignment of the lower limb was measured, and changes in the lower limb axial alignment before and after surgery were analyzed...
May 16, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29770595/repair-potential-of-non-surgically-delivered-induced-pluripotent-stem-cell-derived-chondrocytes-in-a-rat-osteochondral-defect-model
#12
Yeri Alice Rim, Yoojun Nam, Narae Park, Jennifer Lee, Sung-Hwan Park, Ji Hyeon Ju
Human induced pluripotent stem cells (hiPSCs) are thought to be an alternative cell source for future regenerative medicine. hiPSCs may allow unlimited production of cell types that have low turnover rates and are difficult to obtain such as autologous chondrocytes. In this study, we generated hiPSC-derived chondrogenic pellets and chondrocytes were isolated. To confirm the curative effects, chondrogenic pellets and isolated chondrocytes were transplanted into rat joints with osteochondral defects. Isolated hiPSC-derived chondrocytes were delivered in the defect by a single intra-articular injection...
May 16, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29769537/a-co-culture-system-of-rat-synovial-stem-cells-and-meniscus-cells-promotes-cell-proliferation-and-differentiation-as-compared-to-mono-culture
#13
Xing Xie, Jingxian Zhu, Xiaoqing Hu, Linghui Dai, Xin Fu, Jiying Zhang, Xiaoning Duan, Yingfang Ao
A meniscus tear often happens during active sports. It needs to be repaired or replaced surgically to avoid further damage to the articular cartilage. To address the shortage of autologous meniscal cells, we designed a co-culture system of synovial stem cells (SMSCs) and meniscal cells (MCs) to produce a large cell number and to maintain characteristics of MCs. Different ratios of SMSCs and MCs at 3:1, 1:1, and 1:3 were tested. Mono-culture of SMSCs or MCs served as control groups. Proliferation and differentiation abilities were compared...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29766751/overcoming-challenges-in-engineering-large-scaffold-free-neocartilage-with-functional-properties
#14
Brian J Huang, Wendy E Brown, Thomas Keown, Jerry C Hu, Kyriacos A Athanasiou
Although numerous cartilage engineering methods have been described, few report generation of constructs greater than 4 cm2, which is the typical lesion size considered for cell-based therapies. Furthermore, current cell-based therapies only target focal lesions, while treatment of large non-isolated lesions remains an area of great demand. The objective of this study was to scale-up fabrication of self-assembled neocartilage from standard sizes of 0.2 cm2 to greater than 8 cm2. Passaged sheep articular chondrocytes were self-assembled into 5 mm or 25 mm dia...
May 16, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29766025/isoliquiritigenin-inhibits-il-1%C3%AE-induced-production-of-matrix-metalloproteinase-in-articular-chondrocytes
#15
Lei Zhang, Shiyun Ma, Hang Su, Jiaxiang Cheng
Osteoarthritis (OA) is a major joint disease in which inflammatory cytokine interleukin-1β (IL-1β) and matrix metalloproteinases (MMPs) play a pivotal role. Isoliquiritigenin has been reported to have anti-inflammation activity. In this study, the effect of isoliquiritigenin on IL-1β-induced production of matrix metalloproteinase and nuclear factor κB (NF-κB) activation was analyzed. We treated primary cultured articular chondrocytes with isoliquiritigenin and the expressions of MMPs were analyzed on mRNA and protein level...
June 15, 2018: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/29765416/combating-osteoarthritis-through-stem-cell-therapies-by-rejuvenating-cartilage-a-review
#16
REVIEW
Navneet Kumar Dubey, Viraj Krishna Mishra, Rajni Dubey, Shabbir Syed-Abdul, Joseph R Wang, Peter D Wang, Win-Ping Deng
Knee osteoarthritis (OA) is a chronic degenerative disorder which could be distinguished by erosion of articular cartilage, pain, stiffness, and crepitus. Not only aging-associated alterations but also the metabolic factors such as hyperglycemia, dyslipidemia, and obesity affect articular tissues and may initiate or exacerbate the OA. The poor self-healing ability of articular cartilage due to limited regeneration in chondrocytes further adversely affects the osteoarthritic microenvironment. Traditional and current surgical treatment procedures for OA are limited and incapable to reverse the damage of articular cartilage...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29765405/recent-progress-of-fabrication-of-cell-scaffold-by-electrospinning-technique-for-articular-cartilage-tissue-engineering
#17
REVIEW
Yingge Zhou, Joanna Chyu, Mimi Zumwalt
As a versatile nanofiber manufacturing technique, electrospinning has been widely employed for the fabrication of tissue engineering scaffolds. Since the structure of natural extracellular matrices varies substantially in different tissues, there has been growing awareness of the fact that the hierarchical 3D structure of scaffolds may affect intercellular interactions, material transportation, fluid flow, environmental stimulation, and so forth. Physical blending of the synthetic and natural polymers to form composite materials better mimics the composition and mechanical properties of natural tissues...
2018: International Journal of Biomaterials
https://www.readbyqxmd.com/read/29762847/effects-of-fibroblast-growth-factors-2-and-low-intensity-pulsed-ultrasound-on-the-repair-of-knee-articular-cartilage-in-rabbits
#18
Z-F Tang, H-Y Li
OBJECTIVE: To investigate the effect of low intensity ultrasound irradiation combine with fibroblast growth factors (FGF2) on the repair of the knee articular cartilage and to explore its mechanism in rabbit. MATERIALS AND METHODS: The model of the rabbit knee joint injury was established. 40 rabbits were divided into four groups, including control group, model group, FGF2 group and FGF2 + low intensity pulsed ultrasound group (FGF2 + LIPU). The knee joints of rabbits were taken at 4 and 8 weeks, respectively...
April 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29761549/sprifermin-treatment-enhances-cartilage-integration-in-an-in-vitro-repair-model
#19
Mackenzie L Sennett, Gregory R Meloni, Alexandra J E Farran, Hans Guehring, Robert L Mauck, George R Dodge
Cartilage integration remains a clinical challenge for treatment of focal articular defects. Cartilage exhibits limited healing capacity that declines with tissue maturation. Many approaches have been investigated for their ability to stimulate healing of mature cartilage or integration of repair tissue or tissue-engineered constructs with native cartilage. Growth factors present in immature tissue may enhance chondrogenesis and promote integrative repair of cartilage defects. In this study, we assessed the role of one such factor, fibroblast growth factor 18 (FGF18)...
May 14, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29761471/the-infrapatellar-fat-pad-and-the-synovial-membrane-an-anatomo-functional-unit
#20
REVIEW
Veronica Macchi, Elena Stocco, Carla Stecco, Elisa Belluzzi, Marta Favero, Andrea Porzionato, Raffaele De Caro
The infrapatellar pad, a fibro-adipose tissue with peculiar microscopic and mechanical features, is gaining wide attention in the field of rheumatological research. The purpose of this descriptive review is to summarize the most recent published evidence on the anatomic, physiologic and biomechanical inter-relationship between the infrapatellar fat pad and the knee synovial membrane. As an extrasynovial tissue, the infrapatellar fat pad does not directly interact with the articular cartilage; based on its location in close contact with the synovial membrane, and due to the metabolic properties of adipose tissue, it may influence the behavior of the synovial membrane...
May 14, 2018: Journal of Anatomy
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