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https://www.readbyqxmd.com/read/28089200/limitations-of-the-current-standards-of-care-for-treating-gout-and-crystal-deposition-in-the-primary-care-setting-a-review
#1
Robert T Keenan
PURPOSE: This article outlines several important issues regarding the management of patients with gout. The topics discussed include best practices for gout based on the most current guidelines, opportunities for improving gout management, and current and emerging therapies for gout. METHODS: [PubMed and Google Scholar databases] were search for all articles and trials published before 2016, using the key terms [hyperuricemia, gout, tophi, joint erosion, joint damage, treatment guidelines, American College of Rheumatology (ACR), European League Against Rheumatism (EULAR), flare, comorbidity, epidemiology, adherence, serum uric acid (sUA), monosodium urate (MSU), <6 mg/dL, MSU crystal formation, as well as individual drug names and classes of treatments of interest (allopurinol, febuxostat, colchicine, non-steroidal anti-inflammatories (NSAIDs)]...
January 11, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28068647/berberine-an-isoquinoline-alkaloid-suppresses-txnip-mediated-nlrp3-inflammasome-activation-in-msu-crystal-stimulated-raw-264-7-macrophages-through-the-upregulation-of-nrf2-transcription-factor-and-alleviates-msu-crystal-induced-inflammation-in-rats
#2
Palani Dinesh, MahaboobKhan Rasool
The current study was designed to investigate the therapeutic potential of berberine on monosodium urate (MSU) crystal stimulated RAW 264.7 macrophages and in MSU crystal induced rats. Our results indicate that berberine (25, 50 and 75μM) suppressed the levels of pro-inflammatory cytokines (interleukin-1beta (IL-1β) and tumor necrosis factor alpha (TNFα)) and intracellular reactive oxygen species in MSU crystal stimulated RAW 264.7 macrophages. The mRNA expression levels of IL-1β, caspase 1, nucleotide-binding oligomerization domain-like receptor pyrin domain containing 3 (NLRP3), thioredoxin interacting protein (TXNIP) and kelch-like ECH-associated protein 1 (Keap1) were found downregulated with the upregulation of nuclear factor erythroid-2-related factor 2 (Nrf2) transcription factor and its associated anti-oxidant enzymes: Heme oxygenase I (HO-1), superoxide dismutase (SOD1), glutathione peroxidase (GPx), NADPH quinone oxidoreductase-1 (NQO1) and catalase (CAT) in MSU crystal stimulated RAW 264...
January 6, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28067087/oral-delivery-of-allopurinol-niosomes-in-treatment-of-gout-in-animal-model
#3
Neelu Singh, Poonam Parashar, Chandra Bhushan Tripathi, Jovita Kanoujia, Gaurav Kaithwas, Shubhini A Saraf
CONTEXT: Gout is a painful disorder which does not have an efficient delivery system for its treatment. OBJECTIVE: Development and in vitro, in vivo evaluation of allopurinol loaded nonionic surfactant based niosomes was envisaged. MATERIALS AND METHODS: Niosomes were prepared with Span 20 and Tween 20(1:1 molar ratio) using ether injection method. The formulations were screened for entrapment efficiency, particle size analysis, zeta potential, release kinetics, in vivo activity and stability studies...
January 8, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/28062076/a-taxonomy-of-perioperative-surgical-learning-trending-resident-skill-acquisition
#4
John C Hardaway, Marc D Basson, Muhammad Ali, Alan T Davis, Pam S Haan, Rama N Gupta, Andi N Peshkepija, Cody A Nebeker, Cheryl I Anderson
BACKGROUND: Resident and curriculum evaluation require tracking surgical resident operative performance, yet what and when to measure remains unclear. METHODS: From a multi-institutional database, we reviewed 611 resident/surgeon-paired assessments of ACGME Milestones and modified OPRS ratings for different cases and postgraduate years. RESULTS: Faculty Milestone ratings increased with each PGY (p=<0.001) and correlated with resident self-ratings (ICC = 0...
October 8, 2016: American Journal of Surgery
https://www.readbyqxmd.com/read/28054236/antibiotic-resistance-patterns-of-escherichia-coli-urinary-isolates-and-comparison-with-antibiotic-consumption-data-over-10%C3%A2-years-2005-2014
#5
P J Stapleton, D J Lundon, R McWade, N Scanlon, M M Hannan, F O'Kelly, M Lynch
INTRODUCTION: Escherichia coli is a common cause of urinary tract infections (UTI). Reviews of antibiotic resistance of this organism can inform choice of empiric treatment of UTI and other infections and strategies for combating antimicrobial resistance. We reviewed laboratory and hospital pharmacy records to assess trends in non-susceptibility rates and the effect of antimicrobial stewardship interventions. METHODS: A retrospective observational study of isolates of E...
January 4, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28039413/urat1-inhibition-by-alpk1-is-associated-with-uric-acid-homeostasis-alpk1-and-slc22a12-in-uric-acid-homeostasis
#6
Tzer-Min Kuo, Chung-Ming Huang, Hung-Pin Tu, Albert Min-Shan Ko, Shu-Jung Wang, Chi-Pin Lee, Ying-Chin Ko
OBJECTIVE: The aim of this study was to identify a protein for urate transporter 1 (URAT1) regulation. METHODS: The clinical dataset consisted of 492 case-control samples of Han Chinese (104 gout and 388 controls). Three alpha kinase 1 (ALPK1) and SLC22A12 loci associated with high gout risk and uric acid levels were genotyped. The overexpression of ALPK1 on URAT1 protein expression was evaluated in vivo in hALPK1 transgenic mice. The in vitro protein levels of ALPK1 and URAT1 in ALPK1 small interfering RNA-transfected human kidney-2 cells with MSU crystal stimulation were examined...
December 30, 2016: Rheumatology
https://www.readbyqxmd.com/read/27995621/annexin-a1-promotes-timely-resolution-of-inflammation-in-murine-gout
#7
Izabela Galvão, Juliana P Vago, Livia C Barroso, Luciana P Tavares, Celso M Queiroz-Junior, Vivian V Costa, Fernanda S Carneiro, Tatiana P Ferreira, Patricia M R Silva, Flávio A Amaral, Lirlândia P Sousa, Mauro M Teixeira
Gout is a self-limited inflammatory disease caused by deposition of monosodium urate (MSU) crystals in the joints. Resolution of inflammation is an active process leading to restoration of tissue homeostasis. Here, we studied the role of Annexin A1 (AnxA1), a glucocorticoid-regulated protein that has anti-inflammatory and pro-resolving actions, in resolution of acute gouty inflammation. Injection of MSU crystals in the knee joint of mice induced inflammation that was associated with expression of AnxA1 during the resolving phase of inflammation...
December 19, 2016: European Journal of Immunology
https://www.readbyqxmd.com/read/27934918/targeting-asc-in-nlrp3-inflammasome-by-caffeic-acid-phenethyl-ester-a-novel-strategy-to-treat-acute-gout
#8
Hye Eun Lee, Gabsik Yang, Nam Doo Kim, Seongkeun Jeong, Yunjin Jung, Jae Young Choi, Hyun Ho Park, Joo Young Lee
Gouty arthritis is caused by the deposition of uric acid crystals, which induce the activation of NOD-like receptor family, pyrin domain containing 3(NLRP3) inflammasome. The NLRP3 inflammasome, composed of NLRP3, the adaptor protein ASC, and caspase-1, is closely linked to the pathogenesis of various metabolic diseases including gouty arthritis. We investigated whether an orally administrable inhibitor of NLRP3 inflammasome was effective for alleviating the pathological symptoms of gouty arthritis and what was the underlying mechanism...
December 9, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27931959/imaging-of-gout-new-tools-and-biomarkers
#9
REVIEW
Elizabeth G Araujo, Bernhard Manger, Fernando Perez-Ruiz, Ralf G Thiele
While joint aspiration and crystal identification by polarizing microscopy remain the gold standard for diagnosing tophaceous gout, agreement among medical and ancillary health personnel examining synovial fluid using polarizing microscopy for the detection of monosodium urate (MSU) crystals appears to be poor. Imaging modalities, including conventional radiography (CR), ultrasonography (US), magnetic resonance imaging (MRI), and dual-energy computed tomography (DECT), have been found to provide information on the deposition of MSU crystals in tissues, and the consequences of such deposition...
August 2016: Best Practice & Research. Clinical Rheumatology
https://www.readbyqxmd.com/read/27903743/uric-acid-crystals-induce-placental-inflammation-and-alter-trophoblast-function-via-an-il-1-dependent-pathway-implications-for-fetal-growth-restriction
#10
Marie-Eve Brien, Cyntia Duval, Julia Palacios, Ines Boufaied, Andrée-Anne Hudon-Thibeault, Mathieu Nadeau-Vallée, Cathy Vaillancourt, Colin P Sibley, Vikki M Abrahams, Rebecca L Jones, Sylvie Girard
Excessive placental inflammation is associated with several pathological conditions, including stillbirth and fetal growth restriction. Although infection is a known cause of inflammation, a significant proportion of pregnancies have evidence of inflammation without any detectable infection. Inflammation can also be triggered by endogenous mediators, called damage associated molecular patterns or alarmins. One of these damage-associated molecular patterns, uric acid, is increased in the maternal circulation in pathological pregnancies and is a known agonist of the Nlrp3 inflammasome and inducer of inflammation...
January 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27903742/p2y6-receptor-antagonist-mrs2578-inhibits-neutrophil-activation-and-aggregated-neutrophil-extracellular-trap-formation-induced-by-gout-associated-monosodium-urate-crystals
#11
Payel Sil, Craig P Hayes, Barbara J Reaves, Patrick Breen, Shannon Quinn, Jeremy Sokolove, Balázs Rada
Human neutrophils (polymorphonuclear leukocytes [PMNs]) generate inflammatory responses within the joints of gout patients upon encountering monosodium urate (MSU) crystals. Neutrophil extracellular traps (NETs) are found abundantly in the synovial fluid of gout patients. The detailed mechanism of MSU crystal-induced NET formation remains unknown. Our goal was to shed light on possible roles of purinergic signaling and neutrophil migration in mediating NET formation induced by MSU crystals. Interaction of human neutrophils with MSU crystals was evaluated by high-throughput live imaging using confocal microscopy...
January 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27876888/bph32-a-novel-gene-encoding-an-unknown-scr-domain-containing-protein-confers-resistance-against-the-brown-planthopper-in-rice
#12
Juansheng Ren, Fangyuan Gao, Xianting Wu, Xianjun Lu, Lihua Zeng, Jianqun Lv, Xiangwen Su, Hong Luo, Guangjun Ren
An urgent need exists to identify more brown planthopper (Nilaparvata lugens Stål, BPH) resistance genes, which will allow the development of rice varieties with resistance to BPH to counteract the increased incidence of this pest species. Here, using bioinformatics and DNA sequencing approaches, we identified a novel BPH resistance gene, LOC_Os06g03240 (MSU LOCUS ID), from the rice variety Ptb33 in the interval between the markers RM19291 and RM8072 on the short arm of chromosome 6, where a gene for resistance to BPH was mapped by Jirapong Jairin et al...
November 23, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27863506/interleukin-37-limits-monosodium-urate-crystal-induced-innate-immune-responses-in-human-and-murine-models-of-gout
#13
Lei Liu, Yu Xue, Yingfeng Zhu, Dandan Xuan, Xue Yang, Minrui Liang, Juan Wang, Xiaoxia Zhu, Jiong Zhang, Hejian Zou
BACKGROUND: Interleukin (IL)-37 has emerged as a fundamental inhibitor of innate immunity. Acute gout is a self-limiting inflammatory response to monosodium urate (MSU) crystals. In the current study, we assessed the preventive and therapeutic effect of recombinant human IL-37 (rhIL-37) in human and murine gout models. METHODS: We investigated the expression of IL-37 in patients with active and inactive gouty arthritis and assessed the effect of rhIL-37 in human and murine gout models: a human monocyte cell line (THP-1) and human synovial cells (containing macrophage-like and fibroblast-like synoviocytes) exposed to MSU crystals, a peritoneal murine model of gout and a murine gouty arthritis model...
November 18, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27853847/macrophage-derived-il-1%C3%AE-enhances-monosodium-urate-crystal-triggered-net-formation
#14
Payel Sil, Haley Wicklum, Chandler Surell, Balázs Rada
OBJECTIVE AND DESIGN: Arthritic gout is caused by joint inflammation triggered by the damaging effects of monosodium uric acid (MSU) crystal accumulation in the synovial space. Neutrophils play a major role in mediating joint inflammation in gout. Along with neutrophils, other immune cells, such as macrophages, are present in inflamed joints and contribute to gout pathogenesis. Neutrophils form neutrophil extracellular traps (NETs) in response to MSU crystals. In the presence of MSU crystals, macrophages release IL-1β, a cytokine crucial to initiate gout pathogenesis and neutrophil recruitment...
November 16, 2016: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/27849350/maternal-mental-health-and-infant-mortality-for-healthy-weight-infants
#15
Susan E White, Robert W Gladden
OBJECTIVES: The objective of this study was to determine if severe mental illness and/or a history of substance use in mothers of babies of a healthy weight was associated with infant mortality. STUDY DESIGN: This was a cross-sectional observational study using CareSource historical billed Medicaid Managed Care plan (MMC) claims in Ohio. METHODS: CareSource is Ohio's largest MMCP, serving approximately 1.2 million Medicaid consumers. Claims from 89,159 babies of a healthy weight (≥ 2500 grams) and their mothers were selected from the CareSource Ohio MMCP population from January 2011 through December 2014...
November 1, 2016: American Journal of Managed Care
https://www.readbyqxmd.com/read/27837341/crystal-identification-of-synovial-fluid-aspiration-by-polarized-light-microscopy-an-online-test-suggesting-that-our-traditional-rheumatologic-competence-needs-renewed-attention-and-training
#16
D Berendsen, T Neogi, W J Taylor, N Dalbeth, T L Jansen
Testing a reading exercise for identification of several typical crystal such as the negatively birefringent needle-shaped crystals that are under polarized light microscopy is the gold standard for diagnosing gout. The objective of this study was to assess current performance of crystal identification by professionals involved in examining synovial fluid in routine care. Rheumatologists, trainees, lab technicians, and other physicians with an interest in crystal arthritis completed an online test. The test consisted of 30 images: 8 monosodium urate (MSU) crystals, 5 calcium pyrophosphate (CPP), 4 cholesterol, 2 depot methylprednisolone, 2 calcium oxalate, 2 rice bodies, 1 hydroxyapatite, 1 liquid lipid, 1 fibrin, 1 Charcot-Leyden, and 5 different artifacts...
November 11, 2016: Clinical Rheumatology
https://www.readbyqxmd.com/read/27810326/high-h2o-resistance-cao-mnox-msu-h-sorbents-for-hot-coal-gas-desulfurization
#17
Hong Xia, Bingsi Liu
A series of xMnyCa/MSU-H sorbents with various Mn/Ca molar ratio were first designed and synthesized with a sol-gel method. The desulfurization performance of the new sorbent was investigated at 600-800°C in hot coal gas. 90Mn10Ca/MSU-H exhibited better desulfurization performance at 750°C with a breakthrough sulfur capacity (BSC) of 18.69g S/100g sorbent compared to other supported Mn-based sorbents (13.2g S/100g sorbent) in similar desulfurization condition, and strong durability in multiple sulfidation-regeneration cycles using oxidation/reduction regeneration method which resolved the scientific issue of that CaSO4 is hardly decomposed to CaO...
February 15, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/27807451/lifespan-extension-and-sustained-expression-of-stem-cell-phenotype-of-human-breast-epithelial-stem-cells-in-a-medium-with-antioxidants
#18
Kai-Hung Wang, An-Pei Kao, Chia-Cheng Chang, Ta-Chin Lin, Tsung-Cheng Kuo
We have previously reported the isolation and culture of a human breast epithelial cell type with stem cell characteristics (Type I HBEC) from reduction mammoplasty using the MSU-1 medium. Subsequently, we have developed several different normal human adult stem cell types from different tissues using the K-NAC medium. In this study, we determined whether this low calcium K-NAC medium with antioxidants (N-acetyl-L-cysteine and L-ascorbic acid-2-phosphate) is a better medium to grow human breast epithelial cells...
2016: Stem Cells International
https://www.readbyqxmd.com/read/27802505/diagnosis-of-gout-a-systematic-review-in-support-of-an-american-college-of-physicians-clinical-practice-guideline
#19
Sydne J Newberry, John D FitzGerald, Aneesa Motala, Marika Booth, Margaret A Maglione, Dan Han, Abdul Tariq, Claire E O'Hanlon, Roberta Shanman, Whitney Dudley, Paul G Shekelle
Background: Alternative strategies exist for diagnosing gout that do not rely solely on the documentation of monosodium urate (MSU) crystals. Purpose: To summarize evidence regarding the accuracy of clinical tests and classification algorithms compared with that of a reference standard of MSU crystals in joint aspirate for diagnosing gout. Data Sources: Several electronic databases from inception to 29 February 2016. Study Selection: 21 prospective cohort, cross-sectional, and case-control studies including participants with joint inflammation and no previous definitive gout diagnosis who had MSU analysis of joint aspirate...
January 3, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/27797776/phenocurve-capturing-dynamic-phenotype-environment-relationships-using-phenomics-data
#20
Yifan Yang, Lei Xu, Zheyun Feng, Jeffrey A Cruz, Linda J Savage, David M Kramer, Jin Chen
MOTIVATION: Phenomics is essential for understanding the mechanisms that regulate or influence growth, fitness, and development. Techniques have been developed to conduct high-throughput large-scale phenotyping on animals, plants and humans, aiming to bridge the gap between genomics, gene functions and traits. While new developments in phenotyping techniques are exciting, we are limited by the tools to analyze fully the massive phenotype data, especially the dynamic relationships between phenotypes and environments...
October 24, 2016: Bioinformatics
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