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Osteoarthritis AND biomarker

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https://www.readbyqxmd.com/read/28940779/knee-alignment-is-quantitatively-related-to-periarticular-bone-morphometry-and-density-especially-in-those-with-osteoarthritis
#1
Grace H Lo, Mehveen Merchant, Jeffrey B Driban, Jeffrey Duryea, Lori Lyn Price, Charles B Eaton, Timothy E McAlindon
OBJECTIVE: Static alignment influences knee loading and predicts osteoarthritis (OA) progression. Periarticular bone is important in dispersing forces across the knee. And there is substantial evidence for molecular crosstalk between cartilage and subchondral bone. Our objective was to evaluate the relationship of periarticular trabecular morphology and bone mineral density (BMD) with knee alignment. METHODS: This was a cross-sectional analysis of Osteoarthritis Initiative (OAI) Bone Ancillary Study participants...
September 21, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28929915/is-synovitis-detected-on-non-contrast-enhanced-magnetic-resonance-imaging-associated-with-serum-biomarkers-and-clinical-signs-of-effusion-data-from-the-osteoarthritis-initiative
#2
L A Deveza, V B Kraus, J E Collins, A Guermazi, F W Roemer, M C Nevitt, D J Hunter
OBJECTIVES: To determine the relationship between synovitis detected on non-contrast-enhanced (non-CE) magnetic resonance imaging (MRI), biochemical markers of inflammation, and clinical assessment of effusion in people with knee osteoarthritis (OA). METHOD: We examined data from the OA Biomarkers Consortium within the Osteoarthritis Initiative (n = 600). Non-CE MRIs were semi-quantitatively scored (grades 0-3) for severity of Hoffa synovitis and effusion synovitis...
September 20, 2017: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/28921609/biomarkers-for-equine-joint-injury-and-osteoarthritis
#3
REVIEW
C Wayne McIlwraith, Christopher E Kawcak, David D Frisbie, Christopher B Little, Peter D Clegg, Mandy J Peffers, Morten A Karsdal, Stina Ekman, Sheila Laverty, Richard A Slayden, Linda J Sandell, L Stefan Lohmander, Virginia B Kraus
We report the results of a symposium aimed at identifying validated biomarkers that can be used to complement clinical observations for diagnosis and prognosis of joint injury leading to equine osteoarthritis (OA). Biomarkers might also predict pre-fracture change that could lead to catastrophic bone failure in equine athletes. The workshop was attended by leading scientists in the fields of equine and human musculoskeletal biomarkers to enable cross-disciplinary exchange and improve knowledge in both. Detailed proceedings with strategic planning was written, added to, edited and referenced to develop this manuscript...
September 16, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28917712/toward-classification-criteria-for-early-osteoarthritis-of-the-knee
#4
F P Luyten, S Bierma-Zeinstra, F Dell'Accio, V B Kraus, K Nakata, I Sekiya, N K Arden, L S Lohmander
OBJECTIVE: To propose draft classification criteria for early stage osteoarthritis (OA) of the knee for use in a primary care setting. METHODS: A group of basic scientists, physician-scientists, rheumatologists, orthopedic surgeons, and physiotherapists in a workshop setting discussed potential classification criteria for early osteoarthritis of the knee. The workshop was divided into sessions around relevant topics with short state of the art presentations followed by breakout sessions, consensus discussions, and consolidation into a consensus document...
August 9, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28912864/evaluation-of-the-chondroprotective-action-of-n-acetylglucosamine-in-a-rat-experimental-osteoarthritis-model
#5
Daiki Kubomura, Tomoya Ueno, Masanori Yamada, Isao Nagaoka
It has been demonstrated that oral administration of N-acetylglucosamine (GlcNAc) alleviates the symptoms of osteoarthritis (OA). The aim of the present study was to elucidate the molecular mechanisms for the chondroprotective action of GlcNAc in OA. Biomarkers for type II collagen degradation and synthesis were evaluated, as were histopathological changes, using a rat anterior cruciate ligament transection (ACLT)-induced OA model. Changes in the expression of genes in the cartilage were assessed via DNA microarray and reverse transcription-quantitative polymerase chain reaction (RT-qPCR)...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28903010/effect-of-loading-on-in-vivo-tibiofemoral-and-patellofemoral-kinematics-of-healthy-and-acl-reconstructed-knees
#6
Jarred M Kaiser, Michael F Vignos, Richard Kijowski, Geoffrey Baer, Darryl G Thelen
BACKGROUND: Although knees that have undergone anterior cruciate ligament reconstruction (ACLR) often exhibit normal laxity on clinical examination, abnormal kinematic patterns have been observed when the joint is dynamically loaded during whole body activity. This study investigated whether abnormal knee kinematics arise with loading under isolated dynamic movements. HYPOTHESIS: Tibiofemoral and patellofemoral kinematics of ACLR knees will be similar to those of the contralateral uninjured control knee during passive flexion-extension, with bilateral differences emerging when an inertial load is applied...
September 1, 2017: American Journal of Sports Medicine
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
#7
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/28890892/microrna-profiling-in-cartilage-ageing
#8
Panagiotis Balaskas, Katarzyna Goljanek-Whysall, Peter Clegg, Yongxiang Fang, Andy Cremers, Pieter Emans, Tim Welting, Mandy Peffers
Osteoarthritis (OA) is the most common age-related joint disorder in man. MicroRNAs (miRNA), a class of small noncoding RNAs, are potential therapeutic targets for regulating molecular mechanisms in both disease and ageing. Whilst there is an increasing amount of research on the roles of miRNAs in ageing, there has been scant research on age-related changes in miRNA in a cartilage. We undertook a microarray study on young and old human cartilages. Findings were validated in an independent cohort. Contrasts between these samples identified twenty differentially expressed miRNAs in a cartilage from old donors, derived from an OA environment which clustered based on OA severity...
2017: International Journal of Genomics
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
#9
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
#10
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/28870784/isotypes-of-autoantibodies-against-differentially-expressed-novel-malondialdehyde-modified-peptide-adducts-in-serum-of-taiwanese-women-with-rheumatoid-arthritis
#11
Chen-Chung Liao, Yu-Sheng Chang, Chao-Wen Cheng, Wei-Ming Chi, Kai-Leun Tsai, Wei-Jung Chen, Ting-Shuan Kung, Chih-Chun Tai, Yi-Fang Lin, Hung-Tse Lin, Yi-Ying Lu, Ching-Yu Lin
This study identified and validated four differentially expressed novel malondialdehyde (MDA)-modified peptide adducts and evaluated autoantibodies against native and MDA-modified peptides among Taiwanese women patients with rheumatoid arthritis (RA), osteoarthritis (OA) and healthy controls (HCs). Ig kappa chain C region(76-99), alpha-1-antitrypsin(284-298), alpha-2-macroglobulin(824-841), and apolipoprotein B-100(4022-4040) exhibiting 2-fold differences in relative modification ratios were identified by concanavalin A (Con A) affinity chromatography, 1D SDS-PAGE, in-gel digestion, nano-LC/MS/MS and nano-LC/MS using pooled serum-derived Con A-captured proteins from 9 RA and 9 age-matched HCs...
September 1, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28865395/factors-influencing-knee-adduction-moment-measurement-a-systematic-review-and-meta-regression-analysis
#12
REVIEW
Scott Telfer, Moritz J Lange, Amanda S M Sudduth
The external knee adduction moment has been identified as a key biomarker in biomechanics research, with associations with this variable and degenerative diseases such as knee osteoarthritis. Heterogeneity in participant characteristics and the protocols used to measure this variable may however complicate its interpretation. Previous reviews have focused on interventions or did not control for potential moderator variables in their analysis. In this meta-regression analysis, we aimed to determine the influence of factors including the cohort type, footwear, and walking speed on the measurement of knee adduction moment...
August 24, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28862360/mechanically-stimulated-biomarkers-signal-cartilage-changes-over-5-years-consistent-with-disease-progression-in-medial-knee-osteoarthritis-patients
#13
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 five 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-minute 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/28846633/strawberries-improve-pain-and-inflammation-in-obese-adults-with-radiographic-evidence-of-knee-osteoarthritis
#14
Jace Schell, R Hal Scofield, James R Barrett, Biji T Kurien, Nancy Betts, Timothy J Lyons, Yan Daniel Zhao, Arpita Basu
Osteoarthritis (OA), the most common form of arthritis, is a significant public health burden in U.S. adults. Among its many risk factors, obesity is a key player, causing inflammation, pain, impaired joint function, and reduced quality of life. Dietary polyphenols and other bioactive compounds in berries, curcumin, and tea have shown effects in ameliorating pain and inflammation in OA, but few clinical studies have been reported. The purpose of the present study was to examine the effects of dietary strawberries on pain, markers of inflammation, and quality of life indicators in obese adults with OA of the knee...
August 28, 2017: Nutrients
https://www.readbyqxmd.com/read/28840578/bone-mineral-density-is-lower-in-patients-with-severe-knee-osteoarthritis-and-attrition
#15
Karina Nørgaard Linde, Katriina Bøcker Puhakka, Bente Lomholt Langdahl, Kjeld Søballe, Inger Krog-Mikkelsen, Frank Madsen, Maiken Stilling
Bone quality is probably important for the survival of knee arthroplasty (KA), but little is known about systemic bone mineral density and bone turnover in patients prior to KA surgery. The aim of this study was to explore the prevalence of osteoporosis and bone turnover in relation to knee osteoarthritis (OA) grade in patients scheduled for KA surgery. Prospective preoperative evaluation of 450 patients (259 females) prior to KA between 2014 and 2016 with standing knee radiography, Dual-energy X-ray absorptiometry (DXA), biomarkers for bone turnover (CTX, P1NP), and vitamin D...
August 24, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28838858/predictive-and-concurrent-validity-of-cartilage-thickness-change-as-a-marker-of-knee-osteoarthritis-progression-data-from-the-osteoarthritis-initiative
#16
W Wirth, D J Hunter, M C Nevitt, L Sharma, C K Kwoh, C Ladel, F Eckstein
OBJECTIVE: To investigate the predictive and concurrent validity of magnetic resonance imaging (MRI)-based cartilage thickness change between baseline (BL) and year-two (Y2) follow-up (predictive validity) and between Y2 and Y4 follow-up (concurrent validity) for symptomatic and radiographic knee osteoarthritis (OA) progression during Y2→Y4. METHODS: 777 knees from 777 Osteoarthritis Initiative (OAI) participants (age: 61.3 ± 9.0 years, BMI: 30.1 ± 4.8 kg/m(2)) with Kellgren Lawrence (KL) grade 1-3 at Y2 (visit before progression interval) had cartilage thickness measurements from 3T MRI at BL, Y2 (n = 777), and Y4 (n = 708)...
August 31, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28834244/striking-a-new-path-in-reducing-cartilage-breakdown-combination-of-antioxidative-therapy-and-chondroanabolic-stimulation-after-blunt-cartilage-trauma
#17
Jana Riegger, Helga Joos, Hans-Georg Palm, Benedikt Friemert, Heiko Reichel, Anita Ignatius, Rolf E Brenner
Cartilage injury can trigger crucial pathomechanisms, including excessive cell death and expression of matrix-destructive enzymes, which contribute to the progression of a post-traumatic osteoarthritis (PTOA). With the intent to create a novel treatment strategy for alleviating trauma-induced cartilage damage, we complemented a promising antioxidative approach based on cell and chondroprotective N-acetyl cysteine (NAC) by chondroanabolic stimulation. Overall, three potential pro-anabolic growth factors - IGF-1, BMP7 and FGF18 - were tested comparatively with and without NAC in an ex vivo human cartilage trauma-model...
August 22, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28831330/impact-of-traumatic-lower-extremity-injuries-beyond-acute-care-movement-based-considerations-for-resultant-longer-term-secondary-health-conditions
#18
REVIEW
Courtney M Butowicz, Christopher L Dearth, Brad D Hendershot
Significance: Advances in field-based trauma care, surgical techniques, and protective equipment have collectively facilitated the survival of a historically large number of service members (SMs) following combat trauma, although many sustained significant composite tissue injuries to the extremities, including limb loss (LL) and limb salvage (LS). Beyond the acute surgical and rehabilitative efforts that focus primarily on wound care and restoring mobility, traumatic LL and LS are associated with several debilitating longer term secondary health conditions (e...
August 1, 2017: Advances in Wound Care
https://www.readbyqxmd.com/read/28816972/low-second-to-fourth-digit-ratio-in-dupuytren-disease
#19
Takuya Yokoi, Takuya Uemura, Kenichi Kazuki, Ema Onode, Kosuke Shintani, Mitsuhiro Okada, Hiroaki Nakamura
The ratio of the lengths of the second and fourth digits (2D:4D) has been described as reflecting endogenous prenatal androgen exposure. In general, 2D:4D is lower in men than in women and has potential as a biomarker or predictor for various diseases, athletic ability, and academic performance. Dupuytren disease has digital flexion contractures and is known to predominate in men, but the pathogenesis of the disease remains unclear. To clarify the relationships between Dupuytren disease and endogenous androgens, we performed a retrospective analysis of hand radiographs to investigate 2D:4D in Dupuytren disease...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28810626/expression-of-synovial-fluid-biomarkers-in-patients-with-knee-osteoarthritis-and-meniscus-injury
#20
Jian Ding, Xin Niu, Yan Su, Xiaolin Li
In the present study, the levels of synovial fluid biomarkers of patients with knee osteoarthritis (OA) and those with meniscus injury (MI) were compared to associate the levels of synovial fluid biomarkers with the degree of OA and MI. Synovial fluid samples were obtained from 51 cases with OA and 40 patients with MI. Severity of OA and MI were evaluated using the Kellgren-Lawrence (K-L) classification and Magnetic Resonance Imaging Osteoarthritis Knee Score, respectively. A comparative analysis of the levels of matrix metalloproteinase-13 (MMP-13), vascular endothelial growth factor (VEGF), interleukin (IL)-10, IL-8, IL-6, IL-1, tumor necrosis factor-α (TNF-α), as well as collagenase 2 in synovial fluid was made between patients with OA and MI...
August 2017: Experimental and Therapeutic Medicine
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