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Osteoarthritis and Cartilage

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https://www.readbyqxmd.com/read/29024802/synovial-and-systemic-pharmacokinetics-of-triamcinolone-acetonide-following-intra-articular-injection-of-an-extended-release-microsphere-based-formulation-fx006-or-standard-crystalline-suspension-in-patients-with-knee-osteoarthritis
#1
Virginia B Kraus, Philip G Conaghan, Hessam A Aazami, Purvi Mehra, Alan J Kivitz, Joelle Lufkin, Jessica Hauben, James R Johnson, Neil Bodick
OBJECTIVE: Intra-articular (IA) corticosteroids relieve osteoarthritis (OA) pain, but rapid absorption into systemic circulation may limit efficacy and produce untoward effects. We compared the pharmacokinetics of IA triamcinolone acetonide (TA) delivered as an extended-release, microsphere-based formulation (FX006) vs a crystalline suspension (TAcs) in knee OA patients. METHOD: This Phase 2 open-label study sequentially enrolled 81 patients who received a single IA injection of FX006 (5 mL, 32mg delivered dose, N=63) or TAcs (1 mL, 40mg, N=18)...
October 9, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29024801/population-based-prevalence-of-multiple-radiographically-defined-hip-morphologies-the-johnston-county-osteoarthritis-project
#2
Reshmi Raveendran, Jamie L Stiller, Carolina Alvarez, Jordan B Renner, Todd A Schwartz, Nigel K Arden, Joanne M Jordan, Amanda E Nelson
OBJECTIVE: To provide the first prevalence estimates of different radiographic hip morphologies relevant to dysplasia and femoroacetabular impingement in a well-characterized U.S. population-based cohort. METHODS: Cross-sectional data were from the baseline examination (1991-1997) of a large population-based prospective longitudinal cohort study (The Johnston County Osteoarthritis Project). HipMorf software (Oxford, UK) was used to assess hip morphology on AP pelvis radiographs...
October 9, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28989115/osteoarthritis-year-in-review-2017-genetics-and-epigenetics
#3
REVIEW
Mandy Peffers, Panagiotis Balaskas, Aibek Smagul
OBJECTIVE: The purpose of this review is to describe highlights from original research publications related to osteoarthritis (OA), epigenetics and genomics with the intention of recognising significant advances. DESIGN: To identify relevant papers a Pubmed literature search was conducted for articles published between April 2016 and April 2017 using the search terms 'osteoarthritis' together with 'genetics', 'genomics', 'epigenetics', 'microrna', 'lncRNA', 'DNA methylation' and 'histone modification'...
October 6, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28964891/association-between-radiography-based-subchondral-bone-structure-and-mri-based-cartilage-composition-in-postmenopausal-women-with-mild-osteoarthritis
#4
J Hirvasniemi, J Thevenot, J Multanen, M Haapea, A Heinonen, M T Nieminen, S Saarakkala
OBJECTIVE: Our aim was to investigate the relation between radiograph-based subchondral bone structure and cartilage composition assessed with delayed gadolinium enhanced magnetic resonance imaging of cartilage (dGEMRIC) and T2 relaxation time. DESIGN: Ninety-three postmenopausal women (Kellgren-Lawrence grade 0: n = 13, 1: n = 26, 2: n = 54) were included. Radiograph-based bone structure was assessed using entropy of the Laplacian-based image (ELap) and local binary patterns (ELBP), homogeneity indices of the local angles (HIAngles,mean, HIAngles,Perp, HIAngles,Paral), and horizontal (FDHor) and vertical fractal dimensions (FDVer)...
September 28, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28964890/safety-tolerability-and-pharmacodynamics-of-an-anti-interleukin-1%C3%AE-%C3%AE-dual-variable-domain-immunoglobulin-in-patients-with-osteoarthritis-of-the-knee-a-randomized-phase-1-study
#5
S X Wang, S B Abramson, M Attur, M A Karsdal, R A Preston, C J Lozada, M P Kosloski, F Hong, P Jiang, M J Saltarelli, B A Hendrickson, J K Medema
OBJECTIVE: To investigate the safety, tolerability, pharmacokinetics, and pharmacodynamics of ABT-981, a human dual variable domain immunoglobulin simultaneously targeting interleukin (IL)-1α and IL-1β, in patients with knee osteoarthritis (OA). METHOD: This was a randomized, double-blind, placebo-controlled, single-center study of multiple subcutaneous (SC) injections of ABT-981 in patients with mild-to-moderate OA of the knee (NCT01668511). Three cohorts received ABT-981 (0...
September 28, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28942368/dxa-derived-hip-shape-is-related-to-osteoarthritis-findings-from-in-the-mros-cohort
#6
B G Faber, D Baird, C L Gregson, J S Gregory, R J Barr, R M Aspden, J Lynch, M C Nevitt, N E Lane, E Orwoll, J H Tobias
OBJECTIVE: Statistical shape modelling (SSM) of radiographs has been used to explore relationships between altered joint shape and hip osteoarthritis (OA). We aimed to apply SSM to Dual-energy X-ray Absorptiometry (DXA) hip scans, and examine associations between resultant hip shape modes (HSMs), radiographic hip OA (RHOA), and hip pain, in a large population based cohort. METHOD: SSM was performed on baseline hip DXA scans from the Osteoporotic Fractures in Men (MrOS) Study...
September 21, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28935436/associations-between-mri-detected-early-osteophytes-and-knee-structure-in-older-adults-a-population-based-cohort-study
#7
Z Zhu, L L Laslett, W Han, B Antony, F Pan, F Cicuttini, G Jones, C Ding
OBJECTIVES: To describe prevalence of osteophytes (OPs) detected only by magnetic resonance imaging (MRI) but not by standard X-ray in older adults and to evaluate longitudinal associations with knee structural changes. METHODS: 837 participants were randomly selected from the local community and had MRI scans to assess knee OPs and other structures. OPs detected only by MRI but not by standard X-ray were defined as MRI-detected early OPs (MRI-OPs for short). OPs detected by both MRI and X-ray were defined as established-OPs...
September 19, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28935435/subchondral-tibial-bone-texture-predicts-the-incidence-of-radiographic-knee-osteoarthritis-data-from-the-osteoarthritis-initiative
#8
T Janvier, R Jennane, H Toumi, E Lespessailles
OBJECTIVES: To evaluate whether trabecular bone texture (TBT) parameters measured on computed radiographs (CR) could predict the onset of radiographic knee osteoarthritis (OA). MATERIALS AND METHODS: Subjects from the Osteoarthritis Initiative (OAI) with no sign of radiographic OA at baseline were included. Cases that developed either a global radiographic OA defined by the Kellgren-Lawrence (KL) scale, a joint space narrowing (JSN) or tibial osteophytes (TOS) were compared with the controls with no changes after 48 months of follow-up...
September 19, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28919430/role-of-subchondral-bone-properties-and-changes-in-development-of-load-induced-osteoarthritis-in-mice
#9
O O Adebayo, F C Ko, P T Wan, S R Goldring, M B Goldring, T M Wright, M C H van der Meulen
OBJECTIVE: Animal models recapitulating post-traumatic osteoarthritis (OA) suggest that subchondral bone (SCB) properties and remodeling may play major roles in disease initiation and progression. Thus, we investigated the role of SCB properties and its effects on load-induced OA progression by applying a tibial loading model on two distinct mouse strains treated with alendronate (ALN). DESIGN: Cyclic compression was applied to the left tibia of 26-week-old male C57Bl/6 (B6, low bone mass) and FVB (high bone mass) mice...
September 14, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28903017/is-a-high-tibial-osteotomy-hto-superior-to-non-surgical-treatment-in-patients-with-varus-malaligned-medial-knee-osteoarthritis-oa-a%C3%A2-propensity-matched-study-using-2-randomized-controlled-trial-rct-datasets
#10
M V van Outeren, J H Waarsing, R W Brouwer, J A N Verhaar, M Reijman, S M A Bierma-Zeinstra
OBJECTIVE: No randomized controlled trial (RCT) has compared the high tibial osteotomy (HTO) with non-surgical treatment in patients with medial knee osteoarthritis (OA) and varus malalignment. The aim was to compare the effectiveness of an unloader brace treatment or a usual care program to the HTO regarding pain severity and knee function. DESIGN: Surgical treatment (HTO) to two non-surgical options was compared by combining the data of two RCTs. One RCT (n = 117) compared an unloader brace to usual care treatment; the other RCT (n = 92) compared closing to opening wedge HTO...
September 10, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28903016/arthroscopic-meniscectomy-for-degenerative-meniscal-tears-reduces-knee-pain-but-is-not-cost-effective-in-a-routine-health-care-setting-a-multi-center-longitudinal-observational-study-using-data-from-the-osteoarthritis-initiative
#11
J J Rongen, T M Govers, P Buma, M M Rovers, G Hannink
OBJECTIVES: It is disputed whether arthroscopic meniscectomy is an (cost-) effective treatment for degenerative meniscus tears in day-to-day clinical practice. The objective of this study was to assess the cost-effectiveness of arthroscopic meniscectomy in subjects with knee osteoarthritis, in routine clinical practice, while taking into account the increased risk for future knee replacement surgery. We compared cost-effectiveness of arthroscopic meniscectomy compared to no surgery. DESIGN: We used a state transition (Markov) simulation model to evaluate the cost-effectiveness of arthroscopic meniscectomy compared to no surgery in subjects with knee osteoarthritis (age range 45-79 years)...
September 10, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28899844/a-new-lipid-formulation-of-low-dose-ibuprofen-shows-non-inferiority-to-high-dose-standard-ibuprofen-the-flare-study-flaring-arthralgia-relief-evaluation-in-episodic-flaring-knee-pain-a-randomised-double-blind-study
#12
S M A Bierma-Zeinstra, J Brew, K Stoner, R Wilson, A Kilbourn, P G Conaghan
OBJECTIVE: To investigate short-term efficacy and safety of a novel lipid ibuprofen formulation 1200 mg/day compared with standard ibuprofen 1200 mg/day and 2400 mg/day in episodic knee arthralgia/flaring pain. DESIGN: Multicentre, randomised, double-blind, 3-arm, non-inferiority trial conducted at 27 primary care centres. Adults with ≥1 knee flare episode within 12 months were recruited within 24 h of new flare with pain severity ≥5 on a 0-10 numerical rating scale (NRS)...
September 9, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28899843/a-machine-learning-approach-for-the-identification-of-new-biomarkers-for-knee-osteoarthritis-development-in-overweight-and-obese-women
#13
N Lazzarini, J Runhaar, A C Bay-Jensen, C S Thudium, S M A Bierma-Zeinstra, Y Henrotin, J Bacardit
OBJECTIVE: Knee osteoarthritis (OA) is among the higher contributors to global disability. Despite its high prevalence, currently, there is no cure for this disease. Furthermore, the available diagnostic approaches have large precision errors and low sensitivity. Therefore, there is a need for new biomarkers to correctly identify early knee OA. METHOD: We have created an analytics pipeline based on machine learning to identify small models (having few variables) that predict the 30-months incidence of knee OA (using multiple clinical and structural OA outcome measures) in overweight middle-aged women without knee OA at baseline...
September 9, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28888905/selective-interference-of-mtorc1-raptor-protects-against-human-disc-cellular-apoptosis-senescence-and-extracellular-matrix-catabolism-with-akt-and-autophagy-induction
#14
M Ito, T Yurube, K Kakutani, K Maeno, T Takada, Y Terashima, Y Kakiuchi, Y Takeoka, S Miyazaki, R Kuroda, K Nishida
OBJECTIVE: The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that integrates nutrients to execute cell growth and protein synthesis. We hypothesized that mTOR is essential for the intervertebral disc, the largest avascular, low-nutrient organ. Our objective was to elucidate roles of mTOR signaling in human disc cells. DESIGN: The mTOR exists in two complexes: mTORC1 containing the regulatory-associated protein of mTOR (RAPTOR) and mTORC2 containing the rapamycin-insensitive companion of mTOR (RICTOR)...
September 6, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28888904/changes-in-biomechanical-risk-factors-for-knee-osteoarthritis-and-their-association-with-5-year-clinically-important-improvement-after-limb-realignment-surgery
#15
T B Birmingham, R Moyer, K Leitch, B Chesworth, D Bryant, K Willits, R Litchfield, P J Fowler, J R Giffin
OBJECTIVE: To evaluate 5-year outcomes after lower limb realignment and test the hypothesis that surgery-induced changes in selected biomechanical risk factors for medial knee osteoarthritis (OA) are associated with clinically important improvements. DESIGN: We prospectively evaluated patient-reported outcomes, full-limb standing radiographs and gait biomechanics before, 6 months (surgery-induced change) and 5 years after medial opening wedge high tibial osteotomy (HTO) in 170 patients (46...
September 6, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28888903/appropriateness-and-total-knee-arthroplasty-an-examination-of-the-american-academy-of-orthopaedic-surgeons-appropriateness-rating-system
#16
D L Riddle, R A Perera
OBJECTIVE: The American Academy of Orthopaedic Surgeons (AAOS) recently published appropriateness criteria for patients with knee osteoarthritis (OA) who are being considered for total knee arthroplasty (TKA). We evaluated the extent to which predictor variables used by the AAOS contribute to final classification, rated as "appropriate," "may be appropriate" or "rarely appropriate." METHODS: The RAND/UCLA Appropriateness method was used by AAOS to develop 864 clinical vignettes, each incorporating eight evidence-based variables associated with TKA outcome or need...
September 6, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28888902/a-small-molecule-inhibitor-of-the-wnt-pathway-sm04690-as-a-potential-disease-modifying-agent-for-the-treatment-of-osteoarthritis-of-the-knee
#17
V Deshmukh, H Hu, C Barroga, C Bossard, S Kc, L Dellamary, J Stewart, K Chiu, M Ibanez, M Pedraza, T Seo, L Do, S Cho, J Cahiwat, B Tam, J R S Tambiah, J Hood, N E Lane, Y Yazici
OBJECTIVES: Osteoarthritis (OA) is a degenerative disease characterized by loss of cartilage and increased subchondral bone within synovial joints. Wnt signaling affects the pathogenesis of OA as this pathway modulates both the differentiation of osteoblasts and chondrocytes, and production of catabolic proteases. A novel small-molecule Wnt pathway inhibitor, SM04690, was evaluated in a series of in vitro and in vivo animal studies to determine its effects on chondrogenesis, cartilage protection and synovial-lined joint pathology...
September 6, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28888901/oral-administration-of-undenatured-native-chicken-type-ii-collagen-uc-ii-diminished-deterioration-of-articular-cartilage-in-a-rat-model-of-osteoarthritis-oa
#18
C M Bagi, E R Berryman, S Teo, N E Lane
OBJECTIVE: The aim of this study was to determine the ability of undenatured native chicken type II collagen (UC-II) to prevent excessive articular cartilage deterioration in a rat model of osteoarthritis (OA). METHODS: Twenty male rats were subjected to partial medial meniscectomy tear (PMMT) surgery to induce OA. Immediately after the surgery 10 rats received vehicle and another 10 rats oral daily dose of UC-II at 0.66 mg/kg for a period of 8 weeks. In addition 10 naïve rats were used as an intact control and another 10 rats received sham surgery...
September 6, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28888900/sliding-enhances-fluid-and-solute-transport-into-buried-articular-cartilage-contacts
#19
B T Graham, A C Moore, D L Burris, C Price
OBJECTIVE: Solutes and interstitial water are naturally transported from cartilage by load-induced interstitial fluid pressures. Fluid and solute recovery during joint articulation have been primarily attributed to passive diffusion and mechanical 'pumping' from dynamic loading. This paper tests if the sliding action of articulation is a significant and independent driver of fluid and solute transport in cartilage. DESIGN: The large osteochondral samples utilized in the present study preserve the convergent wedges necessary for physiological hydrodynamics...
September 6, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28882752/mechanosensitive-ion-channels-in-articular-nociceptors-drive%C3%A2-mechanical-allodynia-in-osteoarthritis
#20
B H He, M Christin, S Mouchbahani-Constance, A Davidova, R Sharif-Naeini
OBJECTIVE: Osteoarthritis (OA) is a disabling and highly prevalent condition affecting millions worldwide. Pain is the major complaint of OA patients and is presently inadequately managed. It manifests as mechanical allodynia, a painful response to innocuous stimuli such as joint movement. Allodynia is due in part to the sensitization of articular nociceptors to mechanical stimuli. These nociceptors respond to noxious mechanical stimuli applied to their terminals via the expression of depolarizing high-threshold mechanosensitive ion channels (MSICs) that convert painful mechanical forces into electrical signals...
September 5, 2017: Osteoarthritis and Cartilage
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