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https://www.readbyqxmd.com/read/29258883/cartilage-regeneration-and-ageing-targeting-cellular-plasticity-in-osteoarthritis
#1
REVIEW
Marta Varela-Eirin, Jesus Loureiro, Eduardo Fonseca, Silvia Corrochano, Jose R Caeiro, Manuel Collado, Maria D Mayan
Ageing processes play a major contributing role for the development of Osteoarthritis (OA). This prototypic degenerative condition of ageing is the most common form of arthritis and is accompanied by a general decline, chronic pain and mobility deficits. The disease is primarily characterized by articular cartilage degradation, followed by subchondral bone thickening, osteophyte formation, synovial inflammation and joint degeneration. In the early stages, osteoarthritic chondrocytes undergo phenotypic changes that increase cell proliferation and cluster formation and enhance the production of matrix-remodelling enzymes...
December 16, 2017: Ageing Research Reviews
https://www.readbyqxmd.com/read/29245931/silibinin-protects-against-osteoarthritis-through-inhibiting-the-inflammatory-response-and-cartilage-matrix-degradation-in-vitro-and-in-vivo
#2
Wenhao Zheng, Zhenhua Feng, Yiting Lou, Chunhui Chen, Chuanxu Zhang, Zhenyu Tao, Hang Li, Liang Cheng, Xiaozhou Ying
Osteoarthritis (OA) is a degenerative joint disease characterized by cartilage degradation and inflammation. Silibinin, a polyphenolic flavonoid derived from fruits and seeds of Silybum marianum, has been reported to possess various potent beneficial biological effects, such as antioxidant, anti-cancer, hepatoprotective and anti-inflammatory activities. However, the anti-inflammatory effects of silibinin on OA have not been reported. This study aimed to assess the effects of silibinin on OA both in vitro and in vivo...
November 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/29237324/systemic-lupus-erythematosus-arthropathy-the-sonographic-perspective
#3
A Di Matteo, R De Angelis, E Cipolletta, E Filippucci, W Grassi
Background Despite being promising, the use of ultrasound (US) in the assessment of musculoskeletal manifestations of systemic lupus erythematosus (SLE) is still limited. Literature on this topic is scarce and the spectrum and clinical relevance of US abnormalities has not yet been outlined. With this paper, we aim to explore the panel of joint and tendon US findings in a group of SLE patients. Methods Twenty-five consecutive SLE patients, with current or medical history of musculoskeletal symptoms, were studied...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/29205379/in-vivo-measurement-of-swallowing-by-monitoring-thyroid-cartilage-movement-in-healthy-subjects-using-thickened-liquid-samples-and-its-comparison-with-sensory-evaluation
#4
Takahiro Funami, Shingo Matsuyama, Akira Ikegami, Makoto Nakauma, Kazuhiro Hori, Takahiro Ono
This research aimed to investigate the relationship between in vivo measurement of swallowing and sensory evaluation using thickened liquids as model foods. Healthy subjects (8 male and average 29.6-year old) participated in both tests, in which the subjects were asked to swallow the whole amount of sample (10 ml) at one time. In vivo measurement monitored thyroid cartilage movement during swallowing using a bendable pressure sensor synchronously with suprahyoid electromyography, whereas sensory evaluation measured perceived cohesiveness and adhesiveness on a visual analogue scale...
December 2017: Journal of Texture Studies
https://www.readbyqxmd.com/read/29168867/the-protective-effect-of-phloretin-in-osteoarthritis-an-in-vitro-and-in-vivo-study
#5
Wenhao Zheng, Chunhui Chen, Chuanxu Zhang, Leyi Cai, Hua Chen
Osteoarthritis (OA) is a degenerative joint disease characterized by the degradation and inflammation of cartilage. Phloretin, a type of dihydrochalcone mainly found in apples and apple-derived products, has been reported to possess various potent biological effects such as antioxidant, anticancer, anti-inflammatory, and immunomodulatory. However, the anti-inflammatory effects of phloretin on OA have not been reported. This study was aimed at assessing the effects of phloretin on human OA chondrocytes. Human OA chondrocytes were pretreated with phloretin (10, 30, and 100 μM) for 2 h and subsequently stimulated with IL-1β for 24 h...
November 23, 2017: Food & Function
https://www.readbyqxmd.com/read/29135880/histological-osteoarthritic-changes-in-the-human-cervical-spine-facet-joints-related-to-age-and-gender
#6
Lars Uhrenholt, Annie Vesterby Charles, Markil Gregersen, Jan Hartvigsen, Ellen-Margrethe Hauge
STUDY DESIGN: Cross-sectional autopsy study. OBJECTIVE: Quantify histological changes in the lower cervical spine facet joints with regard to age and gender using systematic random sampling of entire joints. SUMMARY OF BACKGROUND DATA: Neck pain is a common debilitating musculoskeletal condition and one of the highest ranked causes of years lived with disability. The cause of neck pain is multifactorial and osteoarthritis is one potential cause...
November 10, 2017: Spine
https://www.readbyqxmd.com/read/29098448/incidence-of-airway-complications-in-patients-using-endotracheal-tubes-with-continuous-aspiration-of-subglottic-secretions
#7
Jordi Vallés, Susana Millán, Emili Díaz, Eva Castanyer, Xavier Gallardo, Ignacio Martín-Loeches, Marta Andreu, Mario Prenafeta, Paula Saludes, Jorge Lema, Montse Batlle, Néstor Bacelar, Antoni Artigas
BACKGROUND: Continuous aspiration of subglottic secretions is effective in preventing ventilator-associated pneumonia, but it involves a risk of mucosal damage. The main objective of our study was to determine the incidence of airway complications related to continuous aspiration of subglottic secretions. METHODS: In consecutive adult patients with continuous aspiration of subglottic secretions, we prospectively recorded clinical airway complications during the period after extubation...
November 2, 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/29094382/low-intensity-vibration-increases-cartilage-thickness-in-obese-mice
#8
Tee Pamon, Vincent Bhandal, Benjamin J Adler, M Ete Chan, Clinton T Rubin
Obesity is associated with an elevated risk of osteoarthritis (OA). We examined here whether high fat diet administered in young mice, compromised the attainment of articular cartilage thickness. Further, we sought to determine if low intensity vibration (LIV) could protect the retention of articular cartilage in a mouse model of diet induced obesity. Five-week-old, male, C57BL/6 mice were separated into 3 groups (n = 10): Regular diet (RD), High fat diet (HF), and HF + LIV (HFv; 90Hz, 0.2g, 30 min/d, 5 d/w) administered for 6 weeks...
November 2, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29093250/-values-of-fat-saturation-sequence-in-mri-for-juvenile-arthritis
#9
Jiapei Wang, Ling Wu, Shiling Zhong, Hanchun Yu, Yazhen Di, Mengjiao Shen, Nan Sun
To explore the values of fat saturation sequence in MRI for juvenile arthritis.
 Methods: A total of 1 131 cases with juvenile arthritis and 1 601 with symptomatic arthritis were examined by MRI normal T1 weighted imaging (T1WI) and T2 weighted imaging (T2WI) sequence and spectral presaturation attenuatedinversion recovery (SPAIR) T2 fat saturation sequence. All the images were independently evaluated by two senior doctors from the Department of Radiology and the Department of Pediatric Rheumatology and Immunology respectively to confirm the types and degree of pathological changes of joint tissues...
October 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29045420/inhibition-of-apoptosis-signal-regulating-kinase-1-alters-the-wound-epidermis-and-enhances-auricular-cartilage-regeneration
#10
Qian-Shi Zhang, Deepa S Kurpad, My G Mahoney, Marla J Steinbeck, Theresa A Freeman
Why regeneration does not occur in mammals remains elusive. In lower vertebrates, epimorphic regeneration of the limb is directed by the wound epidermis, which controls blastema formation to promote regrowth of the appendage. Herein, we report that knockout (KO) or inhibition of Apoptosis Signal-regulated Kinase-1 (ASK1), also known as mitogen-activated protein kinase kinase kinase 5 (MAP3K5), after full thickness ear punch in mice prolongs keratinocyte activation within the wound epidermis and promotes regeneration of auricular cartilage...
2017: PloS One
https://www.readbyqxmd.com/read/29044705/subchondral-trabecular-rod-loss-and-plate-thickening-in-the-development-of-osteoarthritis
#11
Yan Chen, Yizhong Hu, Y Eric Yu, Xingjian Zhang, Tezita Watts, Bin Zhou, Ji Wang, Ting Wang, Weiwei Zhao, Kwong Yuen Chiu, Frankie K L Leung, Xu Cao, William W Lu, William Macaulay, Kyle K Nishiyama, Elizabeth Shane, X Edward Guo
Developing effective treatment for osteoarthritis (OA), a prevalent and disabling disease, has remained a challenge, primarily due to limited understanding of its pathogenesis and late diagnosis. In the subchondral bone, rapid bone loss following traumatic injuries and bone sclerosis at the advanced stage of OA are well-recognized hallmarks of the disease. Recent studies have further demonstrated the crucial contribution of subchondral bone in the development of OA. However, the microstructural basis of these bone changes has not been examined thoroughly, and the paradox of how abnormal resorption can eventually lead to bone sclerosis remains unanswered...
October 17, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28862360/mechanically-stimulated-biomarkers-signal-cartilage-changes-over-5-years-consistent-with-disease-progression-in-medial-knee-osteoarthritis-patients
#12
Constance R Chu, Shikha Sheth, Jennifer C Erhart-Hledik, Bao Do, Matthew R Titchenal, Thomas P Andriacchi
Using serum biomarkers to assess osteoarthritis (OA) disease state and risks of progression remain challenging. This study tested the hypothesis that changes to serum biomarkers in response to a mechanical stimulus in patients with medial knee OA signal cartilage thickness changes 5 years later. Specifically, serum concentrations of a collagen degradation marker (C1,2C) and a chondroitin sulfate synthesis marker (CS846) were measured 0.5 and 5.5 hours after a 30-min walk in 16 patients. Regional cartilage thickness changes measured from magnetic resonance images obtained at study entry and at 5-year follow-up were tested for correlations with baseline biomarker changes after mechanical stimulus, and for differences between groups stratified based on whether biomarker levels increased or decreased...
September 1, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28666239/cryptotanshinone-protects-against-il-1%C3%AE-induced-inflammation-in-human-osteoarthritis-chondrocytes-and-ameliorates-the-progression-of-osteoarthritis-in-mice
#13
Zhenhua Feng, Wenhao Zheng, Xiaobin Li, Jian Lin, Chenglong Xie, Hang Li, Liang Cheng, Aimin Wu, Wenfei Ni
Osteoarthritis (OA) is a common degenerative disease characterized by progressive erosion of articular cartilage, subchondral bone sclerosis and synovitis. Cryptotanshinone (CTS), an active component extracted from the root of Salvia miltiorrhiza Bunge, has been shown to have potent anti-inflammatory effects. However, its effects on OA have not been clearly elucidated. This study aimed to assess the effect of CTS on human OA chondrocytes and mice OA models. Human OA chondrocytes were pretreated with CTS (5, 10 and 20μM) for 2h and subsequently stimulated with IL-1β for 24h...
June 27, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28572469/magnetic-resonance-imaging-mri-of-the-knee-as-an-outcome-measure-in-juvenile-idiopathic-arthritis-an-omeract-reliability-study-on-mri-scales
#14
Robert Hemke, Nikolay Tzaribachev, Charlotte M Nusman, Marion A J van Rossum, Mario Maas, Andrea S Doria
OBJECTIVE: There is increasing evidence that early therapeutic intervention improves longterm joint outcome in juvenile idiopathic arthritis (JIA). Given the existence of highly effective treatments, there is an urgent need for reliable and accurate measures of disease activity and joint damage in JIA. Our objective was to assess the reliability of 2 magnetic resonance imaging (MRI) scoring methods: the Juvenile Arthritis MRI Scoring (JAMRIS) system and the International Prophylaxis Study Group (IPSG) consensus score, for evaluating disease status of the knee in patients with JIA...
June 1, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28508007/five-year-outcomes-after-treatment-for-acute-instability-of-the-tibiofibular-syndesmosis-using-a-suture-button-fixation-system
#15
Paul F Förschner, Knut Beitzel, Andreas B Imhoff, Stefan Buchmann, Georg Feuerriegel, Felix Hofmann, Dimitrios C Karampinos, Pia Jungmann, Jonas Pogorzelski
BACKGROUND: Suture-button repair is a widely accepted surgical treatment for acute and isolated ankle syndesmosis injuries. To our knowledge, midterm results have not previously been reported. PURPOSE: To evaluate the clinical, qualitative, and quantitative radiological midterm outcomes of suture-button repair after acute isolated ankle syndesmosis injuries. STUDY DESIGN: Retrospective case series; Level of evidence, 4. METHODS: Clinical outcomes were measured using the Foot and Ankle Disability Index (FADI) and the American Orthopaedic Foot and Ankle Society (AOFAS) score...
April 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28500930/micro-computed-tomography-scanning-electron-microscopy-and-energy-x-ray-spectroscopy-studies-of-facet-joint-degeneration-a-comparison-to-clinical-imaging
#16
Felix Goehre, Christopher Ludtka, Melanie Hamperl, Andrea Friedmann, Anja Straube, Thomas Mendel, Andreas Heilmann, Hans Jörg Meisel, Stefan Schwan
Segmental degeneration in the human lumbar spine affects both the intervertebral discs and facet joints. Facet joint degeneration not only affects the cartilage surface, but also alters the cellular properties of the cartilage tissue and the structure of the subchondral bone. The primary focus of this study is the investigation of these microstructural changes that are caused by facet joint degeneration. Microstructural analyses of degenerated facet joint samples, obtained from patients following operative lumbar interbody fusion, have not previously been extensively investigated...
September 2017: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/28460415/articular-cartilage-surface-roughness-as-an-imaging-based-morphological-indicator-of-osteoarthritis-a-preliminary-investigation-of-osteoarthritis-initiative-subjects
#17
Michael D Newton, Jeffrey Osborne, Karissa Gawronski, Kevin C Baker, Tristan Maerz
Current imaging-based morphometric indicators of osteoarthritis (OA) using whole-compartment mean cartilage thickness (MCT) and volume changes can be insensitive to mild degenerative changes of articular cartilage (AC) due to areas of adjacent thickening and thinning. The purpose of this preliminary study was to evaluate cartilage thickness-based surface roughness as a morphometric indicator of OA. 3D magnetic resonance imaging (MRI) datasets were collected from osteoarthritis initiative (OAI) subjects with Kellgren-Lawrence (KL) OA grades of 0, 2, and 4 (n = 10/group)...
April 29, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28438606/cell-origin-volume-and-arrangement-are-drivers-of-articular-cartilage-formation-morphogenesis-and-response-to-injury-in-mouse-limbs
#18
Rebekah S Decker, Hyo-Bin Um, Nathaniel A Dyment, Naiga Cottingham, Yu Usami, Motomi Enomoto-Iwamoto, Mark S Kronenberg, Peter Maye, David W Rowe, Eiki Koyama, Maurizio Pacifici
Limb synovial joints are composed of distinct tissues, but it is unclear which progenitors produce those tissues and how articular cartilage acquires its functional postnatal organization characterized by chondrocyte columns, zone-specific cell volumes and anisotropic matrix. Using novel Gdf5(CreERT2) (Gdf5-CE), Prg4-CE and Dkk3-CE mice mated to R26-Confetti or single-color reporters, we found that knee joint progenitors produced small non-migratory progenies and distinct local tissues over prenatal and postnatal time...
June 1, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28370591/mefenamic-acid-decreases-inflammation-but-not-joint-lesions-in-experimental-osteoarthritis
#19
Grazielle C Aguiar, Celso M Queiroz-Junior, Giovana L Sitta, Flávio A Amaral, Mauro M Teixeira, Marcelo V Caliari, Anderson J Ferreira
Mefenamic acid is a non-steroidal anti-inflammatory drug able to control the symptoms of osteoarthritis (OA), but its effects on protection of cartilage and bone are still unclear. This study aimed to investigate whether the control of inflammation by mefenamic acid translates into decreased joint lesions in experimental OA in rats. OA was induced by injecting 1 mg of monosodium iodoacetate (MIA) into the joints of rats. The animals were treated with mefenamic acid (50 mg/kg, daily, oral gavage) either pre-MIA injection (preventive) or post-MIA injection (therapeutic)...
December 2016: International Journal of Experimental Pathology
https://www.readbyqxmd.com/read/28365462/toward-understanding-the-role-of-cartilage-particulates-in-synovial-inflammation
#20
A M Silverstein, R M Stefani, E Sobczak, E L Tong, M G Attur, R P Shah, J C Bulinski, G A Ateshian, C T Hung
OBJECTIVE: Arthroscopy with lavage and synovectomy can remove tissue debris from the joint space and the synovial lining to provide pain relief to patients with osteoarthritis (OA). Here, we developed an in vitro model to study the interaction of cartilage wear particles with fibroblast-like synoviocytes (FLS) to better understand the interplay of cartilage particulates with cytokines on cells of the synovium. METHOD: In this study sub-10 μm cartilage particles or 1 μm latex particles were co-cultured with FLS ±10 ng/mL interleukin-1α (IL-1α) or tumor necrosis factor-α (TNF-α)...
August 2017: Osteoarthritis and Cartilage
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