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Osteoarthritis and Cartilage

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https://www.readbyqxmd.com/read/28642164/joint-loading-and-proximal-tibia-subchondral-trabecular-bone-microarchitecture-differ-with-walking-gait-patterns-in-end-stage-knee-osteoarthritis
#1
Bryant C Roberts, Lucian B Solomon, Graham Mercer, Karen J Reynolds, Dominic Thewlis, Egon Perilli
OBJECTIVES: To (1) stratify subgroups according to their distinct walking gait patterns in end-stage knee osteoarthritis (OA) patients; (2) compare measures of joint loading and proximal tibia subchondral trabecular bone (STB) microarchitecture among subgroups. DESIGN: Twenty-five knee OA patients undergoing total knee arthroplasty had pre-operative gait analysis. Following surgery, excised tibial plateaus were micro-CT-scanned and STB microarchitecture analysed in four tibial condylar regions of interest...
June 19, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28602782/associations-between-serum-ghrelin-and-knee-symptoms-joint-structures-and-cartilage-or-bone-biomarkers-in-patients-with-knee-osteoarthritis
#2
J Wu, K Wang, J Xu, G Ruan, Q Zhu, J Cai, J Ren, S Zheng, Z Zhu, P Otahal, C Ding
OBJECTIVE: The roles of ghrelin in knee osteoarthritis (OA) are unclear. This study aimed to examine cross-sectional associations of ghrelin with knee symptoms, joint structures and cartilage or bone biomarkers in patients with knee OA. METHODS: This study included 146 patients with symptomatic knee OA. Serum levels of ghrelin and cartilage or bone biomarkers including cartilage oligomeric matrix protein (COMP), cross linked C-telopeptide of type I collagen (CTXI), cross linked N-telopeptide of type I collagen (NTXI), N-terminal procollagen III propeptide (PIIINP), and matrix metalloproteinase (MMP)-3, 10, 13 were measured using Enzyme-linked immunosorbent assay (ELISA)...
June 15, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28602781/systematic-review-of-non-surgical-therapies-for-osteoarthritis-of-the-hand-an-update
#3
REVIEW
S Lue, S Koppikar, K Shaikh, D Mahendira, T E Towheed
OBJECTIVE: To update our earlier systematic reviews which evaluated all published randomized controlled trials (RCTs) evaluating pharmacological and non-pharmacological therapies in patients with hand osteoarthritis (OA). Surgical therapies were not evaluated. DESIGN: RCTs published between March 2008 and December 2015 were added to the previous systematic reviews. RESULTS: A total of 95 RCTs evaluating various pharmacological and non-pharmacological therapies in hand OA were analyzed in this update...
June 15, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28624294/patient-decision-aids-for-patients-considering-total-joint-replacement-a-cost-effectiveness-analysis-alongside-a-randomised-controlled-trial
#4
Logan Trenaman, Dawn Stacey, Stirling Bryan, Monica Taljaard, Gillian Hawker, Geoff Dervin, Peter Tugwell, Nick Bansback
BACKGROUND: Shared decision-making (SDM) is a key priority to improve patient-centred care, and can play an important role in helping patients decide whether to undergo total joint arthroplasty (TJA). Patient decision aids can support SDM; however, they may incur an upfront cost. We aimed to estimate the health and economic effects of patient decision aids for TJA. METHODS: A cost-effectiveness analysis of a randomised controlled trial with 2-year follow-up. 343 patients were recruited from two orthopedic screening clinics in Ottawa, Canada...
June 14, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28627466/patterns-of-intra-articular-injection-use-after-initiation-of-treatment-in-patients-with-knee-osteoarthritis-data-from-the-osteoarthritis-initiative
#5
Shao-Hsien Liu, Catherine E Dubé, Jeffrey B Driban, Timothy E McAlindon, Charles B Eaton, Kate L Lapane
OBJECTIVE: We sought to describe and evaluate longitudinal use of intra-articular injections after treatment initiation among adults with radiographically confirmed knee osteoarthritis (OA). METHOD: Using data from the Osteoarthritis Initiative, we included participants with radiographically confirmed OA (Kellgren-Lawrence grade (K-L) ≥ 2) in ≥ 1 knee at baseline. With 9 years of data, 412 participants newly initiating hyaluronic acid or corticosteroid injections with their index visit were identified...
June 13, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28606558/3d-histopathological-grading-of-osteochondral-tissue-using-contrast-enhanced-micro-computed-tomography
#6
H J Nieminen, H K Gahunia, K P H Pritzker, T Ylitalo, L Rieppo, S S Karhula, P Lehenkari, E Hæggström, S Saarakkala
OBJECTIVE: Histopathological grading of osteochondral (OC) tissue is widely used in osteoarthritis (OA) research, and it is relatively common in post-surgery in vitro diagnostics. However, relying on thin tissue section, this approach includes a number of limitations, such as: (1) destructiveness, (2) sample processing artefacts, (3) 2D section does not represent spatial 3D structure and composition of the tissue, and (4) the final outcome is subjective. To overcome these limitations, we recently developed a contrast-enhanced μCT (CEμCT) imaging technique to visualize the collagenous extracellular matrix (ECM) of articular cartilage (AC)...
June 9, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28606557/is-superolateral-hoffa-s-fat-pad-hyperintensity-a-marker-of-local-patellofemoral-joint-disease-the-most-study
#7
M Jarraya, A Guermazi, D T Felson, F W Roemer, M C Nevitt, J Torner, C E Lewis, J Stefanik
PURPOSE: To determine the relation of superolateral Hoffa's fat pad (SHFP) hyperintensity to cartilage damage and bone marrow lesions (BMLs) in the patellofemoral joint (PFJ) and tibiofemoral joint (TFJ). METHODS: We used data from the 60 and 84-month study visits from the Multicenter Osteoarthritis (MOST) study. SHFP hyperintensity and Hoffa-synovitis were graded from 0 to 3. Cartilage damage and BMLs were scored in the PFJ and TFJ. Structural damage was defined as: any cartilage damage, full-thickness cartilage damage and any BML...
June 9, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28606556/is-the-atrophic-phenotype-of-tibiofemoral-osteoarthritis-associated-with-faster-progression-of-disease-the-most-study
#8
M D Crema, D T Felson, A Guermazi, M C Nevitt, J Niu, J A Lynch, M D Marra, J Torner, C E Lewis, F W Roemer
OBJECTIVE: To assess the associations of atrophic tibiofemoral osteoarthritis (OA) with progression of radiographic joint space narrowing (JSN) and magnetic resonance imaging (MRI)-defined progression of cartilage damage. DESIGN: Participants of the Multicenter Osteoarthritis (MOST) Study with available radiographic and MRI assessments at baseline and 30 months were included. The atrophic OA phenotype was defined as OARSI grades 1 or 2 for JSN and grade 0 for osteophytes...
June 9, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28591564/effect-of-a-model-consultation-informed-by-guidelines-on-recorded-quality-of-care-of-osteoarthritis-mosaics-a-cluster-randomised-controlled-trial-in-primary-care
#9
K P Jordan, J J Edwards, M Porcheret, E L Healey, C Jinks, J Bedson, K Clarkson, E M Hay, K S Dziedzic
OBJECTIVE: To determine the effect of a model osteoarthritis (OA) consultation (MOAC) informed by National Institute for Health and Care Excellence (NICE) recommendations compared with usual care on recorded quality of care of clinical OA in general practice. DESIGN: Two-arm cluster randomised controlled trial. SETTING: Eight general practices in Cheshire, Shropshire, or Staffordshire UK. PARTICIPANTS: General practitioners and nurses with patients consulting with clinical OA...
June 4, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28587781/wnt5a-induces-catabolic-signaling-and-matrix-metalloproteinase-production-in-human-articular-chondrocytes
#10
G Huang, S Chubinskaya, W Liao, R F Loeser
OBJECTIVE: Aberrant Wnt signaling may contribute to osteoarthritis (OA) but the Wnt family members involved have not been fully identified. The purpose of this study was to investigate the role of Wnt5a as a potential mediator of cartilage destruction in OA. DESIGN: Immunohistochemistry to detect Wnt5a was performed using normal and OA human articular cartilage. Cultured normal human chondrocytes were treated with fibronectin fragments (FN-f) as a catabolic stimulus or recombinant Wnt5a protein with or without pretreatment using a panel of signaling inhibitors...
June 3, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28583899/statins-do-not-inhibit-the-fgfr-signaling-in-chondrocytes
#11
B Fafilek, M Hampl, N Ricankova, I Vesela, L Balek, M Kunova Bosakova, I Gudernova, M Varecha, M Buchtova, P Krejci
OBJECTIVE: Statins are widely used drugs for cholesterol lowering, which were recently found to counteract the effects of aberrant fibroblast growth factor receptor (FGFR3) signaling in cell and animal models of FGFR3-related chondrodysplasia. This opened an intriguing therapeutic possibility for human dwarfing conditions caused by gain-of-function mutations in FGFR3, although the mechanism of statin action on FGFR3 remains unclear. Here, we determine the effect of statins on FGFR signaling in chondrocytes...
June 3, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28583898/associations-between-proximal-tibiofibular-joint-ptfj-types-and-knee-osteoarthritic-changes-in-older-adults
#12
M Lu, W Han, K Wang, Z Zhu, B Antony, F Cicuttini, Z Yin, G Jones, C Ding
PURPOSE: To describe the cross-sectional associations between proximal tibiofibular joint (PTFJ) type configurations and knee joint structural abnormalities in older adults. METHODS: A total of 967 community-based participants were studied. T1-weighted fat-suppressed magnetic resonance image (MRI) with spoiled gradient recalled echo sequence was utilized to assess the PTFJ type configurations. Knee cartilage volume, cartilage defects, bone marrow lesions and osteophytes were measured...
June 3, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28579418/early-genetic-restoration-of-lubricin-expression-in-transgenic-mice-mitigates-chondrocyte-peroxynitrite-release-and-caspase-3-activation
#13
K M Larson, L Zhang, G J Badger, G D Jay
OBJECTIVE: This study investigated the ability of endogenous lubricin secretion to restore joint health following a brief <21 day, postnatal lubricin-null state, in a C57BL/6J Prg4 gene trap (GT) mouse under the control of cre-recombinase. Previously we showed that re-expression of lubricin at 21 days was partly restorative of joint lubrication. DESIGN: The tibio-femoral joints of adult C57BL/6J mice containing lubricin, lacking lubricin, and postnatally lacking lubricin until restoration of lubricin expression at 7 days or 14 days of age were evaluated ex vivo...
June 1, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28554001/corrigendum-to-synovial-volume-vs-synovial-measurements-from-dynamic-contrast-enhanced-mri-as-measures-of-response-in-osteoarthritis-osteoarthritis-cartilage-24-2017-790-798
#14
J K Sarin, H Brommer, D Argüelles, P H Puhakka, S I Inkinen, I O Afara, S Saarakkala, J Töyräs
No abstract text is available yet for this article.
May 26, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28545881/high-fat-diet-and-saturated-fatty-acid-palmitate-inhibits-igf-1-function-in-chondrocytes
#15
S A Nazli, R F Loeser, S Chubinskaya, J S Willey, R R Yammani
INTRODUCTION: Insulin-like growth factor-1 (IGF-1) promotes matrix synthesis and cell survival in cartilage. Chondrocytes from aged and osteoarthritic cartilage have a reduced response to IGF-1. The purpose of this study was to determine the effect of free fatty acids (FFA) present in a high-fat diet on IGF-1 function in cartilage and the role of endoplasmic reticulum (ER) stress. METHODS: C57BL/6 male mice were maintained on either a high-fat (60% kcal from fat) or a low-fat (10% kcal from fat) diet for 4 months...
May 22, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28545880/stepwise-preconditioning-enhances-mesenchymal-stem-cell-based-cartilage-regeneration-through-epigenetic-modification
#16
S Lin, W Y W Lee, L Xu, Y Wang, Y Chen, K K W Ho, L Qin, X Jiang, L Cui, G Li
OBJECTIVE: This study is to investigate the functions and underlying mechanisms of mesenchymal stem cells (MSCs) underwent stepwise preconditioning in chondrogenic medium before expansion, then further explore their therapeutic effects in a surgically induced osteoarthritis (OA) model. METHODS: MSCs isolated from the adult rats expressing Green Fluorescence Protein (GFP) were incubated in basal medium or primed in chondrogenic medium before expansion. The multipotency including cell proliferation, differentiation, and survivability was compared between chondrogenic manipulated MSCs (M-MSCs) and untreated MSCs...
May 22, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28532603/matrix-replenishing-by-bmscs-is-beneficial-for-osteoarthritic-temporomandibular-joint-cartilage
#17
M Zhang, H Yang, L Lu, X Wan, J Zhang, H Zhang, X Liu, X Huang, G Xiao, M Wang
OBJECTIVES: The present goal was to explore whether matrix replenishment is the primary requirement for osteoarthritic (OA) cartilage. METHODS: Cells isolated from the superficial and deep zone cartilage of a pig temporomandibular joint (TMJ) were exposed to fluid flow shear stress (FFSS). Differences in matrix production and cellular differentiation were detected. Unilateral anterior crossbite (UAC) was applied to C57BL/6J female mice. Green fluorescent protein-labeled exogenous bone marrow stromal cells (GFP-BMSCs) were injected weekly into TMJs, starting from 3 weeks of UAC stimulation and continuing for 4-, 8- and 12-weeks...
May 19, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28531381/corrigendum-to-synovial-volume-vs-synovial-measurements-from-dynamic-contrast-enhanced-mri-as-measures-of-response-in-osteoarthritis-osteoarthritis-cartilage-24-2016-1392-1398
#18
A D Gait, R Hodgson, M J Parkes, C E Hutchinson, T W O'Neill, N Maricar, E J Marjanovic, T F Cootes, D T Felson
No abstract text is available yet for this article.
May 19, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28529161/genome-editing-for-human-osteoarthritis-a-perspective
#19
EDITORIAL
D Almarza, M Cucchiarini, J Loughlin
No abstract text is available yet for this article.
May 18, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28522220/surgical-reconstruction-of-ruptured-anterior-cruciate-ligament-prolongs-trauma-induced-increase-of-inflammatory-cytokines-in-synovial-fluid-an-exploratory-analysis-in-the-kanon-trial
#20
S Larsson, A Struglics, L S Lohmander, R Frobell
OBJECTIVE: Prospectively monitor how treatment of acutely ruptured anterior cruciate ligament (ACL) affects biomarkers of inflammation and proteolytic degradation over 5 years. DESIGN: We studied 119 subjects with acute ACL injury from the randomized controlled KANON-trial (Clinical trial ISRCTN 84752559) who had synovial fluid, serum and urine samples available from at least two out of six visits over 5 years after acute ACL rupture. All subjects followed a similar rehabilitation protocol where, according to randomization, 60 also had early ACL reconstruction and 59 had the option to undergo a delayed ACL reconstruction if needed...
May 15, 2017: Osteoarthritis and Cartilage
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