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Osteoarthritis and light

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https://www.readbyqxmd.com/read/28430129/curcumin-inhibits-apoptosis-of-chondrocytes-through-activation-erk1-2-signaling-pathways-induced-autophagy
#1
Xiaodong Li, Kai Feng, Jiang Li, Degang Yu, Qiming Fan, Tingting Tang, Xiao Yao, Xiaoqing Wang
Osteoarthritis (OA) is an inflammatory disease of load-bearing synovial joints that is currently treated with drugs that exhibit numerous side effects and are only temporarily effective in treating pain, the main symptom of the disease. Consequently, there is an acute need for novel, safe, and more effective chemotherapeutic agents for the treatment of osteoarthritis and related arthritic diseases. Curcumin, the principal curcuminoid and the most active component in turmeric, is a biologically active phytochemical...
April 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28423042/transforming-growth-factor-%C3%AE-1-enhances-heme-oxygenase-1-expression-in-human-synovial-fibroblasts-by-inhibiting-microrna-519b-synthesis
#2
Shu-Jui Kuo, Wei-Hung Yang, Shan-Chi Liu, Chun-Hao Tsai, Horng-Chaung Hsu, Chih-Hsin Tang
BACKGROUND: Osteoarthritis (OA) is manifested by synovial inflammation and cartilage destruction that is directly linked to synovitis, joint swelling and pain. In the light of the role of synovium in the pathogenesis and the symptoms of OA, synovium-targeted therapy is a promising strategy to mitigate the symptoms and progression of OA. Transforming growth factor beta 1 (TGF-β1), a secreted homodimeric protein, possesses unique and potent anti-inflammatory and immune-regulatory properties in many cell types...
2017: PloS One
https://www.readbyqxmd.com/read/28413859/meniscus-articular-cartilage-and-nucleus-pulposus-a-comparative-review-of-cartilage-like-tissues-in-anatomy-development-and-function
#3
REVIEW
Song Chen, Peiliang Fu, Haishan Wu, Ming Pei
The degradation of cartilage in the human body is impacted by aging, disease, genetic predisposition and continued insults resulting from daily activity. The burden of cartilage defects (osteoarthritis, rheumatoid arthritis, intervertebral disc damage, knee replacement surgeries, etc.) is daunting in light of substantial economic and social stresses. This review strives to broaden the scope of regenerative medicine and tissue engineering approaches used for cartilage repair by comparing and contrasting the anatomical and functional nature of the meniscus, articular cartilage (AC) and nucleus pulposus (NP)...
April 17, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28378770/unraveling-the-role-of-calcium-ions-in-the-mechanical-properties-of-individual-collagen-fibrils
#4
Xiangchao Pang, Lijun Lin, Bin Tang
Collagen, the dominating material in the extracellular matrix, provides the strength, elasticity and mechanical stability to the organisms. The mechanical property of collagen is mainly dominated by its surrounding environments. However, the variation and origin of the mechanics of collagen fibril under different concentrations of calcium ions (χCa) remains unknown. By using the atomic force microscopy based nanoindentation, the mechanics and structure of individual type II collagen fibril were first investigated under different χCa in this study...
April 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28345412/effect-of-glucosamine-sulfate-on-osteoarthritis-in-the-cruciate-deficient-canine-model-of-osteoarthritis
#5
Wolfram Wenz, Christian Hornung, Christopher Cramer, Malte Schroeder, Michael Hoffmann
Objective Osteoarthritis (OA) is a major cause of musculoskeletal pain and disability worldwide. The investigation of disease-modifying treatment options for OA has become an important aspect of orthopedic care. To assess the effect of intra-articular and oral glucosamine sulfate (GS) versus placebo on osteoarthritis in a canine model. Materials In this randomized, placebo-controlled, double-blinded study, OA was induced by anterior cruciate ligament transection (ACLT) according to the Pond-Nuki model in 32 canines...
April 2017: Cartilage
https://www.readbyqxmd.com/read/28339018/role-of-autophagy-in-the-progression-of-osteoarthritis-the-autophagy-inhibitor-3-methyladenine-aggravates-the-severity-of-experimental-osteoarthritis
#6
Ni-Tao Cheng, Hai Meng, Li-Feng Ma, Liang Zhang, Hao-Miao Yu, Zhen-Zhong Wang, Ai Guo
Accumulating evidence suggests that autophagy is closely related to the pathogenesis of osteoarthritis (OA). The aim of this study was to determine the changes in autophagy during the progression of OA and to elucidate the specific role of autophagy in OA. For this purpose, a cellular model of OA was generated by stimulating SW1353 cells with interleukin (IL)-1β and a rabbit model of OA was also established by an intra-articular injection of collagenase, followed by treatment with the autophagy specific inhibitor, 3-methyladenine (3-MA)...
March 23, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28338415/hyaluronic-acid-hydrogel-functionalized-with-self-assembled-micelles-of-amphiphilic-pegylated-kartogenin-for-the-treatment-of-osteoarthritis
#7
Mi-Lan Kang, Se-Young Jeong, Gun-Il Im
Synthetic hyaluronic acid (HA) containing a covalently integrated drug is capable of releasing therapeutic molecules and is an attractive candidate for the intra-articular treatment of osteoarthritis (OA). Herein, self-assembled PEGylated kartogenin (PEG/KGN) micelles consisting of hydrophilic polyethylene glycol (PEG) and hydrophobic KGN, which has been shown to induce chondrogenesis in human mesenchymal stem cells, were prepared by covalent crosslinking. HA hydrogels containing PEG/KGN micelles (HA/PEG/KGN) were prepared by covalently bonding PEG chains to HA...
March 24, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28267751/cost-effectiveness-of-adjunct-non-pharmacological-interventions-for-osteoarthritis-of-the-knee
#8
Beth Woods, Andrea Manca, Helen Weatherly, Pedro Saramago, Eleftherios Sideris, Christina Giannopoulou, Stephen Rice, Mark Corbett, Andrew Vickers, Matthew Bowes, Hugh MacPherson, Mark Sculpher
BACKGROUND: There is limited information on the costs and benefits of alternative adjunct non-pharmacological treatments for knee osteoarthritis and little guidance on which should be prioritised for commissioning within the NHS. This study estimates the costs and benefits of acupuncture, braces, heat treatment, insoles, interferential therapy, laser/light therapy, manual therapy, neuromuscular electrical stimulation, pulsed electrical stimulation, pulsed electromagnetic fields, static magnets and transcutaneous electrical nerve Stimulation (TENS), based on all relevant data, to facilitate a more complete assessment of value...
2017: PloS One
https://www.readbyqxmd.com/read/28182736/comparison-of-clinical-and-radiological-outcomes-between-opening-wedge-and-closing-wedge-high-tibial-osteotomy-a-comprehensive-meta-analysis
#9
Lingfeng Wu, Jun Lin, Zhicheng Jin, Xiaobin Cai, Weiyang Gao
High tibial osteotomy (HTO) has been widely used for clinical treatment of osteoarthritis of the medial compartment of the knee, and both opening-wedge and closing-wedge HTO are the most commonly used methods. However, it remains unclear which technique has better clinical and radiological outcomes in practice. To systematically evaluate this issue, we conducted a comprehensive meta-analysis by pooling all available data for the opening-wedge HTO and closing-wedge HTO techniques from the electronic databases including PubMed, Embase, Wed of Science and Cochrane Library...
2017: PloS One
https://www.readbyqxmd.com/read/28148440/-the-pain-must-not-be-taken-lightly
#10
Claire Trochet
Michèle D. is aged 70 and has been suffering from osteoarthritis for many years. She describes her journey.
August 2016: Revue de L'infirmière
https://www.readbyqxmd.com/read/28087904/-protective-effect-of-diosgenin-on-chondrocytes-mediated-by-jak2-stat3-signaling-pathway-in-mice-with-osteoarthritis
#11
Jun Liu, Xiaole He, Ping Zhen, Shenghu Zhou, Xusheng Li
Objective: To investigate the effect of diosgenin (Dgn) on chondrocytes and its relation to JAK2/STAT3 signaling pathway in mice with osteoarthritis (OA).Methods: Fifteen male C57BL/6 mice were randomly divided into three groups:control group, OA group and OA+Dgn group. After 4 weeks of treatment, the histopathological changes of cartilage tissue were observed by toluidine blue staining under light microscopy and the ultrastructure of chondrocytes was observed under electron microscopy. The primarily cultured chondrocytes of OA mice were randomly divided into 4 groups:(1) OA group, (2) Dgn group, (3) Dgn+AG490 group, (4) AG490 group...
May 25, 2016: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/28078252/the-evaluation-of-the-effect-of-herbal-extract-on-osteoarthritis-in-vitro-and-in-vivo-study
#12
Jaeyong Kim, Siyoung Yang, Chul-Yung Choi
In this study, the anti-osteoarthritis effects of Cynanchum wilfordii, Phlomis umbrosa, and Angelica gigas extract (CPAE), observed and confirmed in previously clinical studies were further investigated by in vitro and in vivo studies. Anabolic biomarkers related to healthy cartilage maintenance, such as aggrecan, type II collagen α-1 (Col2a1), sex determining region Y-box-9 (Sox-9), and catabolic biomarkers related to osteoarthritis, such as cyclooxygenase-2 (Cox-2), matrix metalloproteinase-13 (Mmp13), and nuclear factor kappa-light-chain-enhancer of activated B cells (Nfκb), were evaluated by quantitative reverse transcriptase polymerase chain reaction and reporter gene assay...
December 2016: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/28029748/physical-activity-minimum-threshold-predicting-improved-function-in-adults-with-lower-extremity-symptoms
#13
Dorothy D Dunlop, Jing Song, Jungwha Lee, Abigail L Gilbert, Pamela A Semanik, Linda Ehrlich-Jones, Christine A Pellegrini, Daniel Pinto, Barbara Ainsworth, Rowland W Chang
OBJECTIVE: To identify an evidence-based minimum physical activity threshold to predict improved or sustained high function for adults with lower-extremity joint symptoms. METHODS: Prospective multisite data from 1,629 adults, age ≥49 years with symptomatic lower-extremity joint pain/aching/stiffness, participating in the Osteoarthritis Initiative accelerometer monitoring substudy were clinically assessed 2 years apart. Improved/high function in 2-year gait speed and patient-reported outcomes (PROs) were based on improving or remaining in the best (i...
April 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28000846/reduced-mir%C3%A2-26a-and-mir%C3%A2-26b-expression-contributes-to-the-pathogenesis-of-osteoarthritis-via-the-promotion-of-p65-translocation
#14
Xuefeng Yin, Jiang-Quan Wang, Shu-Yi Yan
Osteoarthritis (OA) is a common chronic joint disease, the etiology of which is complex. Disturbance to proinflammatory and anti‑inflammatory signaling pathways is a major cause of OA. MicroRNAs (miRNAs/miR) are a group of endogenous, short, non‑coding RNAs, the expression profile of which is disturbed in the cartilage of patients with OA. To determine the function of miRNAs during the progression of OA, the present study detected the expression levels of nine candidate miRNAs in cartilage samples from 33 patients with OA...
February 2017: Molecular Medicine Reports
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
#15
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/27890430/tar-dna-binding-protein-43-inhibits-inflammatory-response-and-protects-chondrocyte-function-by-modulating-rack1-expression-in-osteoarthritis
#16
Yongming Huang, Qiming Huang, Haitao Su, Xiujun Mai, Enhui Feng, Zhenwu Cao, Xiuyun Zeng
BACKGROUND: TAR DNA-binding protein-43 (TDP-43, transactive response DNA binding protein 43kDa) accumulates in the cytoplasm of affected neurons and glia, as large inclusions of stress granules (SGs). However, the mechanism of TDP-43 interaction with the target genes and its specific role in osteoarthritis (OA) progression is still unknown. The goal of this study was to identify the role of TDP-43 in OA progression by modulating its target genes. METHODS: MSCs were transfected with TDP-43 gene lentivirus...
January 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27845712/the-role-of-mirnas-in-common-inflammatory-arthropathies-osteoarthritis-and-gouty-arthritis
#17
REVIEW
Panagiota Papanagnou, Theodora Stivarou, Maria Tsironi
MicroRNAs (miRNAs) are small, non-coding RNA species that are highly evolutionarily conserved, from higher invertebrates to man. Up to 1000 miRNAs have been identified in human cells thus far, where they are key regulators of the expression of numerous targets at the post-transcriptional level. They are implicated in various processes, including cell differentiation, metabolism, and inflammation. An expanding list of miRNAs is known to be involved in the pathogenesis of common, non-autoimmune inflammatory diseases...
November 11, 2016: Biomolecules
https://www.readbyqxmd.com/read/27820852/osteoarthritis-in-the-knee-joints-of-g%C3%A3-ttingen-minipigs-after-resection-of-the-anterior-cruciate-ligament-missing-correlation-of-mri-gene-and-protein-expression-with-histological-scoring
#18
Gregor Reisig, Michael Kreinest, Wiltrud Richter, Mechthild Wagner-Ecker, Dietmar Dinter, Ulrike Attenberger, Barbara Schneider-Wald, Stefan Fickert, Markus L Schwarz
INTRODUCTION: The Göttingen Minipig (GM) is used as large animal model in articular cartilage research. The aim of the study was to introduce osteoarthritis (OA) in the GM by resecting the anterior cruciate ligament (ACLR) according to Pond and Nuki, verified by histological and magnetic resonance imaging (MRI) scoring as well as analysis of gene and protein expression. MATERIALS AND METHODS: The eight included skeletally mature female GM were assessed after ACLR in the left and a sham operation in the right knee, which served as control...
2016: PloS One
https://www.readbyqxmd.com/read/27808445/chemokines-and-inflammation-in-osteoarthritis-insights-from-patients-and-animal-models
#19
REVIEW
Carla R Scanzello
Evidence has been building that the pathologic drive for development of osteoarthritis (OA) involves more than simple mechanical "wear and tear." Inflammatory mechanisms play an important role in the tissue response to joint injury, and are involved in development of post-traumatic OA. Inflammation also appears integral to the progression of OA, whether post-traumatic or spontaneous, contributing to the evolution of joint tissue degradation and remodeling as well as joint pain. Both patient-based studies and in vivo models of disease have shed light on a number of inflammatory pathways and mediators that impact various aspects of this disease, both structurally and symptomatically...
November 3, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/27727249/microrna-140-inhibits-inflammation-and-stimulates-chondrogenesis-in-a-model-of-interleukin-1%C3%AE-induced-osteoarthritis
#20
Tommy A Karlsen, Gustavo Antonio de Souza, Bjørn Ødegaard, Lars Engebretsen, Jan E Brinchmann
Osteoarthritis is a serious disease of articular cartilage. The pathogenic factors contributing to this disorder are inflammation, extracellular matrix degradation and failure to rebuild the articular cartilage. Preclinical studies suggest that microRNA-140 may play a protective role in osteoarthritis development, but little is known about the mechanism by which this occurs. Here we present the results of forced expression of microRNA-140 in an in vitro model of osteoarthritis, evaluated by global proteomics analysis...
October 11, 2016: Molecular Therapy. Nucleic Acids
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