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https://www.readbyqxmd.com/read/27934918/targeting-asc-in-nlrp3-inflammasome-by-caffeic-acid-phenethyl-ester-a-novel-strategy-to-treat-acute-gout
#1
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
#2
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
#3
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...
November 30, 2016: 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
#4
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...
November 30, 2016: 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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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...
October 26, 2016: 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
#11
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
#12
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...
November 1, 2016: Annals of Internal Medicine
https://www.readbyqxmd.com/read/27797776/phenocurve-capturing-dynamic-phenotype-environment-relationships-using-phenomics-data
#13
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
https://www.readbyqxmd.com/read/27761841/adverse-working-events-in-patients-with-multiple-sclerosis
#14
Chiara Concetta Incerti, Ornella Argento, Giuseppe Magistrale, Elisabetta Ferraro, Carlo Caltagirone, Valerio Pisani, Ugo Nocentini
Multiple sclerosis (MS) and working status have recently arisen great interest. Fatigue, physical disability, cognition, and psychological disturbances have been linked to unemployment, as well to accidents during daily activities. The aim of our study was to determine frequency of different types of accidents at workplace (AWE) and possible clinical differences among employed (MSe) and unemployed (MSu) MS patients. Sixty MS patients (31 employed, 29 unemployed) and twenty healthy control subjects were recruited...
October 19, 2016: Neurological Sciences
https://www.readbyqxmd.com/read/27754647/ammonium-fluoride-mediated-synthesis-of-anhydrous-metal-fluoride-mesoporous-carbon-nanocomposites-for-high-performance-lithium-ion-battery-cathodes
#15
Jinyoung Chun, Changshin Jo, Sunhye Sahgong, Min Gyu Kim, Eunho Lim, Dong Hyeon Kim, Jongkook Hwang, Eunae Kang, Keun Ah Ryu, Yoon Seok Jung, Youngsik Kim, Jinwoo Lee
Metal fluorides (MFx) are one of the most attractive cathode candidates for Li-ion batteries (LIBs) due to their high conversion potentials with large capacities. However, only a limited number of synthetic method, generally involving highly toxic or inaccessible reagents, currently exist, which has made it difficult to produce well-designed nanostructures suitable for cathodes; consequently, harnessing their potential cathodic properties has been a challenge. Herein, we report a new bottom-up synthetic method utilizing ammonium fluoride (NH4F) for the preparation of anhydrous MFx(CuF2, FeF3, and CoF2)/mesoporous carbon(MSU-F-C) nanocomposites, whereby a series of metal precursor nanoparticles pre-confined in mesoporous carbon were readily converted to anhydrous MFx through simple heat treatment with NH4F under solventless conditions...
October 18, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27748084/performance-of-ultrasound-in-the-diagnosis-of-gout-in-a-multi-center-study-comparison-with-monosodium-urate-crystal-analysis-as-the-gold-standard
#16
Alexis Ogdie, William J Taylor, Tuhina Neogi, Jaap Fransen, Tim L Jansen, H Ralph Schumacher, Worawit Louthrenoo, Janitzia Vazquez-Mellado, Maxim Eliseev, Geraldine McCarthy, Lisa K Stamp, Fernando Perez-Ruiz, Francisca Sivera, Hang-Korng Ea, Martijn Gerritsen, Giovanni Cagnotto, Lorenzo Cavagna, Chingtsai Lin, Yin-Yi Chou, Anne-Kathrin Tausche, Manuella Lima Gomes Ochtrop, Matthijs Janssen, Jiunn-Horng Chen, Ole Slot, Juris Lazovskis, Douglas White, Marco A Cimmino, Till Uhlig, Nicola Dalbeth
OBJECTIVES: To examine the performance of ultrasound for the diagnosis of gout using presence of monosodium urate (MSU) crystals as the gold standard. METHODS: We analyzed data from the Study for Updated Gout Classification Criteria (SUGAR), a large, multi-center observational cross-sectional study of consecutive subjects with at least one swollen joint who conceivably may have gout. All subjects underwent arthrocentesis; cases were subjects with MSU crystal confirmation...
October 16, 2016: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/27747142/differential-effects-of-estrogen-and-progesterone-on-genetic-and-environmental-risk-for-emotional-eating-in-women
#17
Kelly L Klump, Shannon M O'Connor, Britny A Hildebrandt, Pamela K Keel, Michael Neale, Cheryl L Sisk, Steven Boker, S Alexandra Burt
Recent data show shifts in genetic and environmental influences on emotional eating across the menstrual cycle, with significant shared environmental influences during pre-ovulation, and primarily genetic effects during post-ovulation. Factors driving differential effects are unknown, although increased estradiol during pre-ovulation and increased progesterone during post-ovulation are thought to play a role. We indirectly investigated this possibility by examining whether overall levels of estradiol and progesterone differentially impact genetic and environmental risk for emotional eating in adult female twins (N = 571) drawn from the MSU Twin Registry...
September 2016: Clinical Psychological Science
https://www.readbyqxmd.com/read/27713960/hypouricemic-effects-of-mesona-procumbens-hemsl-through-modulating-xanthine-oxidase-activity-in-vitro-and-in-vivo
#18
Jhih-Jia Jhang, Jia-Wei Ong, Chi-Cheng Lu, Chin-Lin Hsu, Jia-Hong Lin, Jiunn-Wang Liao, Gow-Chin Yen
Uric acid is a metabolite obtained from purine by xanthine oxidase activity (XO) and high levels of serum uric acid leads to hyperuricemia and gout. Mesona procumbens Hemsl. has been used as a healthy beverage and a traditional remedy. In this study, the hypouricemic effects of M. procumbens extracts were evaluated in vitro and in vivo. The 50% ethanol extract of M. procumbens (EE50) showed the strongest inhibitory effect on monosodium urate (MSU)-induced XO activity in THP-1 cells. However, the phenolics and flavonoids in EE50 may not serve as inhibitors of XO...
October 12, 2016: Food & Function
https://www.readbyqxmd.com/read/27697392/development-of-a-new-palpation-method-using-alternative-landmarks-for-the-determination-of-thoracic-transverse-processes-an-in-vitro-study
#19
Isabelle Pagé, Martin Descarreaux, Stéphane Sobczak
Palpation methods (PMs) have been proposed to guide clinicians in locating the thoracic transverse processes (TTPs). However, no studies have assessed the validity of TTPs palpation or the added value of musculoskeletal ultrasound (MSU). The objectives of the present study were (1) to explore the validity of TTPs location using palpation as commonly performed by clinicians, (2) to develop an accurate and valid PM, and (3) to assess the added value of MSU. A standardized procedure was used on six cadavers. It consisted in the insertion of markers through the T3, T5, T6 and T8 TTPs and spinous processes, which were identified using palpation and MSU...
September 20, 2016: Manual Therapy
https://www.readbyqxmd.com/read/27694988/monosodium-urate-crystal-induced-pro-interleukin-1%C3%AE-production-is-post-transcriptionally-regulated-via-the-p38-signaling-pathway-in-human-monocytes
#20
Yeon-Ho Chung, Dong-Hyun Kim, Won-Woo Lee
IL-1β is a key mediator of sterile inflammation in response to endogenous particulates, a type of damage-associated molecular pattern (DAMPs) molecule derived from damaged cells. Despite the well-known role of sterile particulates such as monosodium urate (MSU) crystals as inflammasome inducers in monocytes/macrophages, little is known regarding how pro-IL-1β synthesis is induced under sterile inflammatory conditions. We provide evidence that MSU crystals post-transcriptionally induce the rapid production of pro-IL-1β in human primary monocytes...
October 3, 2016: Scientific Reports
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