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https://www.readbyqxmd.com/read/29233793/licochalcone-a-activates-keap1-nrf2-signaling-to-suppresses-arthritis-via-phosphorylation-of-p62-at-serine-349
#1
Xiaohui Su, Ting Li, Zhongqiu Liu, Qingchun Huang, Kangsheng Liao, Rutong Ren, Linlin Lu, Xiaoxiao Qi, Maojie Wang, Jianyu Chen, Hua Zhou, Elaine Lai-Han Leung, Hudan Pan, Juan Liu, Hui Wang, Lufen Huang, Liang Liu
Licochalcone A (LCA) is derived from glycyrrhizae radix with antimicrobial, antitumor and anti-inflammatory activities. However, the anti-arthritic function of LCA and underlying mechanism has not been yet explored. The current study investigated the anti-arthritic effect of LCA and elucidated the underlying mechanism. The results showed that LCA significantly suppressed arthritis via the activation of QSTM1 (p62)/nuclear factor-erythroid 2-related factor 2 (Nrf2) signaling in the collage-induced arthritis (CIA) model of DBA mice...
December 9, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29233772/genetic-toxicological-assessment-and-anti-arthritic-effects-of-an-ethanolic-extract-obtained-from-salvia-lachnostachys-benth-leaves-in-mice
#2
Joyce Alencar Santos, Fernanda da Silva Graciani, Claudia Rodrigues Berno, Maicon Matos Leitão, Elide Pereira Dos Santos, Rodrigo Juliano Oliveira, Cândida Aparecida Leite Kassuya
In the present study, mice were subjected to prolonged treatment with ethanolic extract of Salvia lachnostachys Benth leaves (SLEE), and the inflammatory and arthritic parameters were evaluated using the Complete Freund's Adjuvant (CFA) model. The genotoxicity of SLEE were also assayed using genetic toxicological tests. For the CFA model, 30 male C57BL/6 mice were distributed randomly into four groups (control, 50 mg/kg of SLEE, 100 mg/kg of SLEE and dexamethasone) for the evaluation of hyperalgesia and paw edema for 21 days after injection of CFA into the paw...
December 9, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/29228993/programmed-cell-death-5-transgenic-mice-attenuates-adjuvant-induced-arthritis-by-2-modifying-the-t-lymphocytes-balance
#3
Feng Yuan, Junfeng Wang, Keshi Zhang, Zhao Li, Zhenpeng Guan
BACKGROUND: Programmed cell death 5 (PDCD5) is an apoptosis-related gene cloned from TF-1 cells whose primary biological functions are to promote apoptosis and immune regulation. The effects and mechanisms exerted by key mediators of arthritic inflammation remain unclear in PDCD5 transgenic (PDCD5 tg) mice. RESULTS: In the current study, PDCD5 tg mice inhibited the progression of adjuvant-induced arthritis, specifically decreasing clinical signs and histological damage, compared with arthritis control mice...
December 11, 2017: Biological Research
https://www.readbyqxmd.com/read/29228558/1-palmitoyl-2-linoleoyl-3-acetyl-rac-glycerol-ameliorates-arthritic-joints-through-reducing-neutrophil-infiltration-mediated-by-il-6-stat3-and-mip-2-activation
#4
Young-Jun Kim, Jae Min Shin, Su-Hyun Shin, Joo Heon Kim, Ki-Young Sohn, Heung-Jae Kim, Jong-Koo Kang, Sun Young Yoon, Jae Wha Kim
The pathogenesis of rheumatoid arthritis (RA) has been implicated neutrophil extracellular traps (NETs) formation which could generate autoantigen. Neutrophil contributes to initiate and maintain the inflammatory process in the joint. In this study, we show that 1-palmitoyl-2-linoleoyl-3-acetyl-rac-glycerol (PLAG) decreases neutrophil migration by regulating the activity of STAT3, a regulator of IL-6 and MIP-2 expression. PLAG caused a decrease in IL-6 production in the RAW264.7 macrophage cell line and in rheumatoid arthritis-fibroblast-like synoviocytes via the regulation of STAT3 signaling without affecting NF-κB signaling...
November 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/29227460/neuropathic-like-ocular-pain-and-nonocular-comorbidities-correlate-with-dry-eye-symptoms
#5
Victoria S Chang, Terri P Rose, Carol L Karp, Roy C Levitt, Constantine Sarantopoulos, Anat Galor
OBJECTIVE: To evaluate the association between dry eye (DE) symptoms and neuropathic-like ocular pain (NOP) features, chronic pain conditions, depression, and anxiety in patients presenting for routine ophthalmic examinations. METHODS: Two hundred thirty-three consecutive patients ≥18 years of age presenting to a comprehensive eye clinic between January and August 2016 were included in this study. Information on demographics, chronic pain conditions, medication use, DE symptoms (dry eye questionnaire, DEQ5), NOP complaints (burning; wind, light, and temperature sensitivity), depression, and anxiety indices (patient health questionnaire 9, PHQ-9 and symptom checklist 90-revised, SCL-90-R) were collected for each individual...
December 7, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29226739/rutin-phospholipid-complex-in-polymer-matrix-for-long-term-delivery-of-rutin-via-skin-for-the-treatment-of-inflammatory-diseases
#6
Bhupen Kalita, Malay K Das
The drug with poor oral bioavailability necessitates the development of novel carrier for efficient drug delivery. This paper reports the rutin-phospholipid complex in polymer matrix for sustained delivery of rutin via the skin for the treatment of acute and chronic inflammatory diseases. Rutin in phospholipid complex (RNPs) are better soluble and permeable than the free rutin. The RNPs-loaded polymeric matrix patch with moderate adhesiveness was developed for convenient means of long term drug application on the skin...
December 9, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29226162/relationship-between-age-at-onset-of-symptoms-and-intraoperative-findings-in-hip-arthroscopic-surgery
#7
Carlos Suarez-Ahedo, Chengcheng Gui, Stephanie M Rabe, John P Walsh, Sivashankar Chandrasekaran, Benjamin G Domb
Background: Hip arthroscopic surgery is intended to treat multiple abnormalities in an effort to delay the progression to osteoarthritis, especially in young patients. However, the length of time in which patients experience joint pain before seeking a specialist for a diagnosis can delay hip preservation surgery and influence clinical outcomes. Purpose: To investigate the relationship between age at symptom onset and findings during hip arthroscopic surgery as well as outcomes after 2 years of clinical follow-up...
November 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29225423/adiposity-measures-and-plasma-adipokines-in-females-with-rheumatoid-and-osteoarthritis
#8
Vanessa DeClercq, Yunsong Cui, Cynthia Forbes, Scott A Grandy, Melanie Keats, Louise Parker, Ellen Sweeney, Zhijie Michael Yu, Trevor J B Dummer
The objective of this study was to examine the relationship between adipokines and adiposity in individuals with rheumatoid and osteoarthritis in the Atlantic PATH cohort. Using a nested case-control analysis, participants in the Atlantic PATH cohort with rheumatoid or osteoarthritis were matched for measures of adiposity with participants without a history of arthritis. Both measured and self-reported data were used to examine disease status, adiposity, and lifestyle factors. Immunoassays were used to measure plasma markers...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/29221756/characterization-of-the-binding-site-for-d-deprenyl-in-human-inflamed-synovial-membrane
#9
Anna Lesniak, Mikko Aarnio, Shanti Diwakarla, Thomas Norberg, Fred Nyberg, Torsten Gordh
AIMS: d-Deprenyl when used as a positron emission tomography tracer visualizes peripheral inflammation. The major aim of the current study was to identify and investigate the properties of the binding target for d-deprenyl in synovial membrane explants from arthritic patients. MAIN METHODS: Thirty patients diagnosed with arthritis or osteoarthritis were enrolled into the study. Homologous and competitive radioligand binding assays utilizing [3H]d-deprenyl were performed to investigate the biochemical characteristics of the binding site and assess differences in the binding profile in synovial membranes exhibiting varying levels of inflammation...
December 5, 2017: Life Sciences
https://www.readbyqxmd.com/read/29221187/selection-and-characterization-of-a-human-ovarian-cancer-cell-line-resistant-to-auranofin
#10
Ida Landini, Andrea Lapucci, Alessandro Pratesi, Lara Massai, Cristina Napoli, Gabriele Perrone, Pamela Pinzani, Luigi Messori, Enrico Mini, Stefania Nobili
The anti-arthritic drug auranofin exerts also potent antitumour activity in in vitro and in vivo models, whose mechanisms are not yet well defined. From an auranofin-sensitive human ovarian cancer cell line A2780, a highly resistant (>20-fold) subline (A2780/AF-R) was developed and characterized. Marked reduction of gold accumulation occurred in auranofin-resistant A2780 cells. Also, moderately higher thioredoxin reductase activity in A2780/AF-R cells was observed while no changes in intracellular glutathione content occurred...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29218684/feasibility-of-arthroscopic-autologous-chondrocyte-implantation-in-the-hip-using-an-injectable-hydrogel
#11
Steffen Thier, Florian Baumann, Christel Weiss, Stefan Fickert
INTRODUCTION: In the long term the treatment of articular cartilage defects of the hip has the most direct impact on the postoperative outcome and should diminish degenerative changes caused by different pathologies. The purpose of this prospective feasibility study is to describe technical aspects of arthroscopic, injectable autologous chondrocyte implantation in the hip and to report the short-term outcome. METHODS: Full-thickness cartilage defects of 13 patients were treated arthroscopically with an injectable autologous chondrocyte transplantation product (Novocart Inject, Tetec) in a 2-step surgical procedure...
December 8, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29218683/comparison-of-mri-ct-dunn-45%C3%A2-and-dunn-90%C3%A2-alpha-angle-measurements-in-femoroacetabular-impingement
#12
Kevin M Smith, Brayden J Gerrie, Patrick C McCulloch, David M Lintner, Joshua D Harris
PURPOSE: To determine if a significant difference existed among alpha angle measurements between 4 imaging techniques, axial oblique CT and MRI, Dunn 45° and Dunn 90° plain radiographs, in patients with symptomatic cam femoroacetabular impingement (FAI) and labral tear. METHODS: A single-surgeon prospective radiographic analysis of consecutive non-arthritic and non-dysplastic patients with symptomatic FAI and labral tears who underwent surgery was performed. Alpha angle was measured using standard techniques as described by Nötzli...
December 4, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29218573/dual-neutralization-of-tnfr-2-and-mmp-2-regulates-the-severity-of-s-aureus-induced-septic-arthritis-correlating-alteration-in-the-level-of-interferon-gamma-and-interleukin-10-in-terms-of-tnfr2-blocking
#13
Sahin Sultana, Rajen Dey, Biswadev Bishayi
Severity of S. aureus septic arthritis is correlated to prolonged inflammation by inflammatory cytokines like TNF-α, IL-1β, and IL-6 even after successful elimination of bacteria. Role of TNF-α via TNFR2 is not well established in this aspect. IFN-γ induces TNF-α release from the macrophages augmenting the inflammatory arthritis. IL-10 modulates the levels of pro-inflammatory cytokines promoting resolution of inflammation. TNF-α-TNFR2 signaling upregulates both of these cytokines. Higher level of MMP-2 induction by inflammatory cytokines during arthritis promotes tissue destruction...
December 7, 2017: Immunologic Research
https://www.readbyqxmd.com/read/29216931/vista-deficiency-attenuates-antibody-induced-arthritis-and-alters-macrophage-gene-expression-in-response-to-simulated-immune-complexes
#14
Sabrina Ceeraz, Susan K Eszterhas, Petra A Sergent, David A Armstrong, Alix Ashare, Thomas Broughton, Li Wang, Dov Pechenick, Christopher M Burns, Randolph J Noelle, Matthew P Vincenti, Roy A Fava
BACKGROUND: In addition to activated T cells, the immune checkpoint inhibitor "V domain-containing Ig suppressor of T-cell activation" (VISTA) is expressed by myeloid cell types, including macrophages and neutrophils. The importance of VISTA expression by myeloid cells to antibody-induced arthritis and its potential for relevance in human disease was evaluated. METHODS: VISTA was immunolocalized in normal and arthritic human synovial tissue sections and synovial tissue lysates were subjected to western blot analysis...
December 8, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29208963/enhanced-cd25-foxp3-regulatory-t-cell-development-by-amodiaquine-through-activation-of-nuclear-receptor-4a
#15
Hee Yeon Won, Ji Hyun Shin, Sera Oh, Hana Jeong, Eun Sook Hwang
CD4+ T cells play key roles in the regulation of immune responses against pathogenic infectious antigens via development into effector T helper and induced regulatory T (iTreg) cells. Particularly, CD4+CD25+Foxp3+ iTreg cells are crucial for maintaining immune homeostasis and controlling inflammatory diseases. Anti-inflammatory drugs that enhance iTreg cell generation would be effective at preventing and treating inflammatory and autoimmune diseases. In this study, we examined whether anti-malarial and anti-arthritic amodiaquine (AQ) could affect iTreg cell development...
December 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29193895/inflammatory-cytokines-stabilize-soxc-transcription-factors-to-mediate-the-transformation-of-fibroblast-like-synoviocytes-in-arthritic-disease
#16
Pallavi Bhattaram, George Muschler, Viktor Wixler, Véronique Lefebvre
OBJECTIVES: Fibroblast-like synoviocytes (FLS) produce key synovial fluid and tissue components to ensure joint integrity under healthy conditions, whereas they become cancer-like and aggressively contribute to joint degeneration in inflammatory arthritis. Here we asked whether the SOXC transcription factors SOX4 and SOX11, whose functions are critical in joint development and many cancer types, contribute to FLS activities under normal and inflammatory conditions. METHODS: We inactivated the SOXC genes in FLS of adult mice and studied consequences on joint homeostasis and tumor necrosis factor-alpha (TNFα)-induced arthritis...
November 28, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29192804/hecogenin-exhibits-anti-arthritic-activity-in-rats-through-suppression-of-pro-inflammatory-cytokines-in-complete-freund-s-adjuvant-induced-arthritis
#17
Deepa K Ingawale, Snehal S Patel
Hecogenin is a steroidal sapogenin isolated from the leaves of Agave genus species that plays an important role in the treatment of a variety of inflammatory diseases. The aim of the present study was to evaluate the anti-arthritic activity of hecogenin in Complete Freund's adjuvant-induced arthritis in rats. The hecogenin (40 µl of 50 µg/kg, orally) and hecogenin + fluticasone (40 µl of 25 µg/kg, each, orally) was tested against Complete Freund's adjuvant-induced arthritis in rats by evaluating various parameters such as paw volume, arthritic score, joint diameter, spleen weight, thymus weight, haematological and biochemical parameters and pro-inflammatory cytokines...
December 1, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29191104/does-prior-spine-surgery-or-instrumentation-affect-surgical-outcomes-following-3-column-osteotomy-for-correction-of-thoracolumbar-deformities
#18
Darryl Lau, Andrew K Chan, Vedat Deverin, Christopher P Ames
OBJECTIVE Adult spinal deformity (ASD) develops in the setting of asymmetrical arthritic degeneration, and can also be due to iatrogenic causes, such as prior surgery. Many patients who present with ASD have undergone prior spine surgery with instrumentation. Unfortunately, contemporary studies that evaluate the effect of prior surgery or instrumentation on perioperative outcomes, readmission rates, and need for reoperation are lacking. METHODS All ASD patients who underwent a 3-column osteotomy performed by the senior author at the authors' institution for correction of thoracolumbar spinal deformity between 2006 and 2016 were identified...
December 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/29190705/arthritic-role-of-porphyromonas-gingivalis-in-collagen-induced-arthritis-mice
#19
Hyerin Jung, Seung Min Jung, Yeri Alice Rim, Narae Park, Yoojun Nam, Jennifer Lee, Sung-Hwan Park, Ji Hyeon Ju
Epidemiological studies show an association between rheumatoid arthritis (RA) and periodontal disease. Porphyromonas gingivalis (P.gingivalis) is a well-known pathogen in periodontitis. This study investigated the pathogenic effects of P.gingivalis on autoimmune arthritis in vivo. Collagen-induced arthritis (CIA) mice were intraperitoneally injected with W83 and 2561 strains of P.gingivalis. Infection with P.gingivalis exacerbated arthritis score in CIA mice. Synovial inflammation and bone destruction in CIA mice infected with P...
2017: PloS One
https://www.readbyqxmd.com/read/29186097/-the-experience-of-the-using-tolperisone-in-a-complex-conservative-therapy-of-an-osteoarthrosis-of-a-hip-joint
#20
O A Kaplunov, K O Kaplunov, E U Nekrasov
AIM: The comparison of the efficiency of the standard scheme of a conservative medicinal therapy of an OA of a hip joint and the modified scheme (with the muscle relaxant of the central action - Tolperisone) was the research objective. MATERIAL AND METHODS: The prospective research of the complex conservative therapy of two pools of patients with initial stages of a coxarthrosis from 2014 for 2017 with the subject assessment articulary treatment components is conducted...
2017: Khirurgiia
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