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https://www.readbyqxmd.com/read/28528333/effect-of-1-25-oh-2d3-on-proliferation-of-fibroblast-like-synoviocytes-and-expressions-of-pro-inflammatory-cytokines-through-regulating-microrna-22-in-a-rat-model-of-rheumatoid-arthritis
#1
Ping Fan, Lan He, Nan Hu, Jing Luo, Jing Zhang, Ling-Fei Mo, Yan-Hua Wang, Dan Pu, Xiao-Hong Lv, Zhi-Ming Hao, Chang-Hai Ding, Wu-Jun Xue, Yang Li
OBJECTIVE: This study aims to investigate the regulatory mechanism of 1,25-(OH)2D3 on the proliferation of fibroblast-like synoviocytes (FLS) and expressions of pro-inflammatory cytokines in rheumatoid arthritis (RA) rats via microRNA-22 (miR-22). METHODS: A rat model of RA was established with a subcutaneous injection of type II collagen. After treated with different concentrations of 1,25-(OH)2D3 the proliferation of FLS was estimated by the MTT method, and the optimal concentration of 1,25-(OH)2D3 was selected for further experiments...
May 12, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28520776/proteomic-analysis-of-tea-plants-camellia-sinensis-with-purple-young-shoots-during-leaf-development
#2
Qiongqiong Zhou, Zhidan Chen, Jinwook Lee, Xinghui Li, Weijiang Sun
Tea products made from purple leaves are highly preferred by consumers due to the health benefits. This study developed a proteome reference map related to color changes during leaf growth in tea (Camellia sinensis) plant with purple young shoots using two-dimensional electrophoresis (2-DE). Forty-six differentially expressed proteins were detected in the gel and successfully identified by using MALDI-TOF/TOF-MS. The pronounced changes in the proteomic profile between tender purple leaves (TPL) and mature green leaves (MGL) included: 1) the lower activity of proteins associated with CO2 assimilation, energy metabolism and photo flux efficiency and higher content of anthocyanins in TPL than those in MGL may protect tender leaves against photo-damage; 2) the higher abundance of chalcone synthase (CHS), chalcone isomerase (CHI) and flavonol synthase (FLS) likely contributes to the synthesis of anthocyanins, catechins and flavonols in TPL tissues; 3) higher abundance of stress response proteins, such as glutathione S-transferases (GST) and phospholipid hydroperoxide glutathione peroxidase (PHGPx), could enhance the tolerance of TPL tissues to adverse condition in; and 4) the increased abundance of proteins related to protein synthesis, nucleic acids and cell wall proteins should be beneficial for the proliferation and expansion of leaf cell in TPL tissues...
2017: PloS One
https://www.readbyqxmd.com/read/28516302/the-minimally-acceptable-classification-criterion-for-surgical-skill-intent-vectors-and-separability-of-raw-motion-data
#3
Rodney L Dockter, Thomas S Lendvay, Robert M Sweet, Timothy M Kowalewski
PURPOSE: Minimally invasive surgery requires objective methods for skill evaluation and training. This work presents the minimally acceptable classification (MAC) criterion for computational surgery: Given an obvious novice and an obvious expert, a surgical skill evaluation classifier must yield 100% accuracy. We propose that a rigorous motion analysis algorithm must meet this minimal benchmark in order to justify its cost and use. METHODS: We use this benchmark to investigate two concepts: First, how separable is raw, multidimensional dry laboratory laparoscopic motion data between obvious novices and obvious experts? We utilized information theoretic techniques to analytically address this...
May 18, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28509639/factors-associated-with-simulator-assessed-laparoscopic-surgical-skills-of-veterinary-students
#4
Jessica J Kilkenny, Ameet Singh, Carolyn L Kerr, Deep K Khosa, Boel A Fransson
OBJECTIVE To determine whether simulator-assessed laparoscopic skills of veterinary students were associated with training level and prior experience performing nonlaparoscopic veterinary surgery and other activities requiring hand-eye coordination and manual dexterity. DESIGN Experiment. SAMPLE 145 students without any prior laparoscopic surgical or fundamentals of laparoscopic surgery (FLS) simulator experience in years 1 (n = 39), 2 (34), 3 (39), and 4 (33) at a veterinary college. PROCEDURES A questionnaire was used to collect data from participants regarding experience performing veterinary surgery, playing video games, and participating in other activities...
June 1, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28501116/usefulness-of-virtual-reality-in-assessment-of-medical-student-laparoscopic-skill
#5
Josh Matzke, Craig Ziegler, Kevin Martin, Stuart Crawford, Erica Sutton
BACKGROUND: This study evaluates if undergraduate medical trainees' laparoscopic skills acquisition could be assessed using a virtual reality (VR) simulator and how the resultant metrics correlate with performance of Fundamentals of Laparoscopic Surgery (FLS) tasks. Our hypothesis is that the VR simulator metrics will correlate with passing results in a competency-based curriculum (FLS). MATERIALS AND METHODS: Twenty-eight fourth-year medical students applying for surgical residency were recruited to participate in a VR training curriculum comprised of camera navigation, hand eye coordination, and FLS tasks: circle cutting (CC), ligating loop (LL), peg transfer (PT), and intracorporeal knot tying (IKT)...
May 1, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28496447/inosine-released-from-dying-or-dead-cells-stimulates-cell-proliferation-via-adenosine-receptors
#6
Jin Chen, Ricardo A Chaurio, Christian Maueröder, Anja Derer, Manfred Rauh, Andriy Kost, Yi Liu, Xianming Mo, Axel Hueber, Rostyslav Bilyy, Martin Herrmann, Yi Zhao, Luis E Muñoz
INTRODUCTION: Many antitumor therapies induce apoptotic cell death in order to cause tumor regression. Paradoxically, apoptotic cells are also known to promote wound healing, cell proliferation, and tumor cell repopulation in multicellular organisms. We aimed to characterize the nature of the regenerative signals concentrated in the micromilieu of dead and dying cells. METHODS: Cultures of viable melanoma B16F10 cells, mouse fibroblasts, and primary human fibroblast-like synoviocytes (FLS) in the presence of dead and dying cells, their supernatants (SNs), or purified agonists and antagonists were used to evaluate the stimulation of proliferation...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28493970/elevation-of-secondary-metabolites-synthesis-in-brassica-campestris-ssp-chinensis-l-via-exogenous-inoculation-of-piriformospora-indica-with-appropriate-fertilizer
#7
Muhammad Khalid, Danial Hassani, Muhammad Bilal, Jianli Liao, Danfeng Huang
This work evaluated the impact of exogenous soil inoculation of beneficial fungal strain Piriformospora indica on phytochemical changes and the related genes expression of Chinese cabbage (Brassica campestris ssp. chinensis L.) by greenhouse pot experiments. High performance liquid chromatography (HPLC) affirmed that among the different combinations of fungal and organic fertilizer treatments, the phenolic acids and flavonoids were considerably enriched in organic fertilizer and fungi (OP) followed by organic fertilizer, biochar, fungi (OBP) treated plants...
2017: PloS One
https://www.readbyqxmd.com/read/28486517/genetic-diversity-qoi-fungicide-resistance-and-mating-type-distribution-of-cercospora-sojina-implications-for-the-disease-dynamics-of-frogeye-leaf-spot-on-soybean
#8
Sandesh Kumar Shrestha, Alicia Cochran, Alemu Mengistu, Kurt Lamour, Arturo Castro-Rocha, Heather Young-Kelly
Frogeye leaf spot (FLS), caused by Cercospora sojina, causes significant damage to soybean in the U.S. One control strategy is the use of quinone outside inhibitor (QoI) fungicides. QoI resistant isolates were first reported in Tennessee (TN) in 2010. To investigate the disease dynamics of C. sojina, we collected 437 C. sojina isolates in 2015 from Jackson and Milan, TN and used 40 historical isolates collected from 2006-2009 from TN and ten additional states for comparison. A subset of 186 isolates, including historical isolates, were genotyped for 49 single nucleotide polymorphism (SNP) markers and the QoI resistance locus, revealing 35 unique genotypes...
2017: PloS One
https://www.readbyqxmd.com/read/28482921/the-autocrine-role-of-proteoglycan-4-prg4-in-modulating-osteoarthritic-synoviocyte-proliferation-and-expression-of-matrix-degrading-enzymes
#9
Ali Alquraini, Maha Jamal, Ling Zhang, Tannin Schmidt, Gregory D Jay, Khaled A Elsaid
BACKGROUND: Lubricin/proteoglycan 4 (PRG4) is a mucinous glycoprotein secreted by synovial fibroblasts and superficial zone chondrocytes. Recently, we showed that recombinant human PRG4 (rhPRG4) is a putative ligand for CD44 receptor. rhPRG4-CD44 interaction inhibits cytokine-induced rheumatoid arthritis synoviocyte proliferation. The objective of this study is to decipher the autocrine function of PRG4 in regulating osteoarthritic synoviocyte proliferation and expression of catabolic and pro-inflammatory mediators under basal and interleukin-1 beta (IL-1β)-stimulated conditions...
May 8, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28479495/adjusting-frax%C3%A2-on-tbs-for-identification-of-subjects-at-high-risk-of-fractures
#10
G Couraud, C Souffir, E Gaigneux, S Kolta, C Roux, K Briot
The objective of this study was to compare the proportion of patients at high fracture risk according to FRAX® and FRAX® adjusted on TBS in patients hospitalized for a non vertebral fractures. Patients were selected from a Fracture Liaison Service FLS): clinical risk factors, bone mineral density (BMD) and TBS were assessed at the time of the fracture. Without considering the current fracture, we calculated FRAX® and FRAX® adjusted on TBS (TBS-FRAX®), and compared the proportion of patients with a high risk for major osteoporotic fracture (MOF)>20% according to FRAX® and TBS-FRAX®, and the proportion of subjects who should be treated according to current guidelines...
May 4, 2017: Bone
https://www.readbyqxmd.com/read/28463788/caffeic-acid-alleviates-inflammatory-response-in-rheumatoid-arthritis-fibroblast-like-synoviocytes-by-inhibiting-phosphorylation-of-i%C3%AE%C2%BAb-kinase-%C3%AE-%C3%AE-and-i%C3%AE%C2%BAb%C3%AE
#11
Weifeng Wang, Wei Sun, Lixia Jin
Caffeic acid (CA) is a phenolic acid widely found in fruits and plants, which exhibits anti-oxidative, anti-inflammatory, anti-tumor and immunomodulatory properties. Because increased level of reactive oxygen species (ROS) is related to the pathogenesis of rheumatoid arthritis (RA), we treated RA-derived fibroblast-like synoviocytes (RA-FLS) with CA, and investigated its effects on cytokine production, expression levels of prostaglandin E2 (PGE2) and matrix metalloproteinases (MMP)-1. Our results showed that high level of CA induced cell apoptosis in RA-FLS...
April 29, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28458183/metal-enhanced-fluorescence-visual-bimodal-platform-for-multiplexed-ultrasensitive-detection-of-microrna-with-reusable-paper-analytical-devices
#12
Linlin Liang, Feifei Lan, Xuemei Yin, Shenguang Ge, Jinghua Yu, Mei Yan
Convenient biosensor for simultaneous multi-analyte detection was increasingly required in biological analysis. A novel flower-like silver (FLS)-enhanced fluorescence/visual bimodal platform for the ultrasensitive detection of multiple miRNAs was successfully constructed for the first time based on the principle of multi-channel microfluidic paper-based analytical devices (µPADs). Fluorophore-functionalized DNA1 (DNA1-N-CDs) was combined with FLS, which was hybridized with quencher-carrying strand (DNA2-CeO2) to form FLS-enhanced fluorescence biosensor...
September 15, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28443168/an-iranian-version-of-the-fukushima-lumbar-spinal-stenosis-scale-fls-25-a-validation-study
#13
Parisa Azimi, Ali Montazeri
STUDY DESIGN: Cross-sectional study. PURPOSE: To translate and validate the Fukushima lumbar spinal stenosis (LSS) scale 25 (FLS-25) for use in Iran. OVERVIEW OF LITERATURE: Tools measuring patient-reported outcomes should satisfy certain psychometric properties. METHODS: FLS-25 is a self-administered scale for evaluating symptoms of LSS. A forward-backward procedure was applied to translate the questionnaire from English into Persian...
April 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28428266/kca1-1-channels-regulate-%C3%AE-1-integrin-function-and-cell-adhesion-in-rheumatoid-arthritis-fibroblast-like-synoviocytes
#14
Mark R Tanner, Michael W Pennington, Teresina Laragione, Pércio S Gulko, Christine Beeton
Large-conductance calcium-activated potassium channel (KCa1.1; BK, Slo1, MaxiK, KCNMA1) is the predominant potassium channel expressed at the plasma membrane of fibroblast-like synoviocytes isolated from the synovium of patients with rheumatoid arthritis (RA-FLS). It is a critical regulator of RA-FLS migration and invasion and therefore represents an attractive target for the therapy of RA. However, the molecular mechanisms by which KCa1.1 regulates RA-FLS invasiveness have remained largely unknown. Here, we demonstrate that KCa1...
April 20, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28426444/fracture-liaison-services
#15
Karine Briot
PURPOSE OF REVIEW: The purpose of this review is to report the evidence of beneficial effects of Fracture Liaison Service (FLS) including data regarding their impact on subsequent fracture, mortality risk and cost-effectiveness. This review also discusses the limitations of these data and the challenges faced during the implementation of FLS. RECENT FINDINGS: Recent studies showed the beneficial impact of implementation of FLS on the prevention of subsequent fracture risk, reduced mortality and cost-effectiveness...
April 19, 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/28413632/is-in-vivo-laparoscopic-simulation-learning-a-step-forward-in-the-undergraduate-surgical-education
#16
Panteleimon Pantelidis, Michail Sideris, Georgios Tsoulfas, Efstratia-Maria Georgopoulou, Ismini Tsagkaraki, Nikolaos Staikoglou, Georgios Stagias, Nikolaos Psychalakis, Parmenion Tsitsopoulos, Thanos Athanasiou, Georgios Zografos, Apostolos Papalois
BACKGROUND: Essentials Skills in the Management of Surgical Cases - ESMSC is an International Combined Applied Surgical Science and Wet Lab course addressed at the Undergraduate level. Laparoscopic Skills is a fundamental element of Surgical Education and various Simulation-Based Learning (SBL) models have been endorsed. This study aims to explore if there is any significant difference in delegates' performance depending on whether they completed In Vivo module prior to the equivalent in the laparoscopic simulator...
April 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28411340/attainment-and-retention-of-force-moderation-following-laparoscopic-resection-training-with-visual-force-feedback
#17
Rafael Hernandez, Arzu Onar-Thomas, Francesco Travascio, Shihab Asfour
BACKGROUND: Laparoscopic training with visual force feedback can lead to immediate improvements in force moderation. However, the long-term retention of this kind of learning and its potential decay are yet unclear. METHODS: A laparoscopic resection task and force sensing apparatus were designed to assess the benefits of visual force feedback training. Twenty-two male university students with no previous experience in laparoscopy underwent relevant FLS proficiency training...
April 14, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28410619/foxo1-pxk-pycard-and-samd9l-are-differentially-expressed-by-fibroblast-like-cells-in-equine-synovial-membrane-compared-to-joint-capsule
#18
Line Nymann Thomsen, Preben Dybdahl Thomsen, Alison Downing, Richard Talbot, Lise Charlotte Berg
BACKGROUND: The synovial membrane lines the luminal side of the joint capsule in synovial joints. It maintains joint homeostasis and plays a crucial role in equine joint pathology. When trauma or inflammation is induced in a joint, the synovial membrane influences progression of joint damage. Equine synovial membrane research is hampered by a lack of markers of fibroblast-like synoviocytes (FLS) to distinguish FLS from other fibroblast-like cells in musculoskeletal connective tissues...
April 14, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28408914/transcriptome-analysis-reveals-candidate-genes-related-to-color-fading-of-red-bartlett-pyrus-communis-l
#19
Zhigang Wang, Hong Du, Rui Zhai, Linyan Song, Fengwang Ma, Lingfei Xu
The red color of fruit is an attractive plant trait for consumers. Plants with color-faded fruit have a lower commercial value, such as 'Red Bartlett' pears (Pyrus communis L.) that have dark-red fruit in the early stages of fruit development that subsequently fade to red-green at maturity. To identify the reason for color fading, we first analyzed the anthocyanin content of peel from 'Red Bartlett,' which displays the color fading phenomenon, and 'Starkrimson,' which has no color fading. Results showed that the anthocyanin content of 'Red Bartlett' peel decreased significantly late in fruit development, while in 'Starkrimson' there was no significant decrease...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28401267/paeonol-protects-against-tnf-%C3%AE-induced-proliferation-and-cytokine-release-of-rheumatoid-arthritis-fibroblast-like-synoviocytes-by-upregulating-foxo3-through-inhibition-of-mir-155-expression
#20
Ning Liu, Xue Feng, Wenbo Wang, Xingkai Zhao, Xia Li
BACKGROUND: Fibroblast-like synoviocytes (FLS) play an essential role in the pathogenesis of chronic inflammatory diseases, such as rheumatoid arthritis. Paeonol (Pae) is a phenolic compound found in many traditional Chinese medicine remedies. However, the effects of Pae on TNF-α-stimulated FLS and the underlying molecular mechanism are unknown. In this study, we aimed to investigate the anti-proliferative and anti-inflammatory effect of Pae against activated FLS. MATERIALS AND METHODS: Rheumatoid arthritis FLS (RA-FLS) were pre-treated with different doses (25, 50, and 100 µM) of Pae or miR-155 inhibitor for 30 min or transfected with miR-155 mimic, and then treated with 50 ng/mL of tumor necrosis factor alpha (TNF-α) for 1 h...
April 11, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
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