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https://www.readbyqxmd.com/read/28803339/dual-energy-computed-tomography-has-limited-diagnostic-sensitivity-for-short-term-gout
#1
Ertao Jia, Junqing Zhu, Wenhui Huang, Xiaoguang Chen, Juan Li
The aim of this study was to discuss the diagnostic value of dual-energy computed tomography (DECT) in patients with gout during different disease phases. Two hundred twenty-one patients (136 with gout and 85 with other arthritic diseases) were recruited to the study. Arthrosis pain was evaluated in all patients by DECT scans. We calculated the sensitivity and specificity of DECT for the diagnosis of gout, including the first onset period, less than 24 months period, and more than 24 months period. We then investigated the related risk factors of urate crystals volume in the foot...
August 12, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28801728/arctium-minus-crude-extract-presents-antinociceptive-effect-in-a-mice-acute-gout-attack-model
#2
Susana Paula Moreira Fischer, Indiara Brusco, Camila Camponogara, Mariana Piana, Henrique Faccin, Luciana Assis Gobo, Leandro Machado de Carvalho, Sara Marchesan Oliveira
Gout is a disorder that triggers a severe inflammatory reaction which generates episodes of intense pain and discomfort to the patient. Arctium minus (Hill) Bernh. (Asteraceae) is known as "burdock" and displays anti-inflammatory, antinociceptive, against rheumatic pain and radical-scavenging activities. Species of the genus Arctium have been used in assistant therapy of gout and other inflammatory processes. We investigated the antinociceptive and anti-edematogenic effects of the crude extract of A. minus seeds in an acute gout attack model induced by intra-articular injection of monosodium urate (MSU) crystals in adult male Swiss mice (25-30 g)...
August 11, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28797095/single-nucleotide-polymorphisms-associated-with-p2x7r-function-regulate-the-onset-of-gouty-arthritis
#3
Jin-Hui Tao, Miao Cheng, Jiang-Ping Tang, Xiao-Juan Dai, Yong Zhang, Xiang-Pei Li, Qin Liu, Ya-Ling Wang
BACKGROUND: Gout is an inflammatory disease that is caused by the increased production of Interleukin-1β (IL-1β) stimulated by monosodium urate (MSU) crystals. However, some hyperuricemia patients, even gouty patients with tophi in the joints, never experience gout attack, which indicates that pathogenic pathways other than MSU participate in the secretion of IL-1β in the pathogenesis of acute gouty arthritis. The ATP-P2X7R-IL-1β axis may be one of these pathways. OBJECTIVE: This study examines the role of Adenosine triphosphate (ATP) in the pathogenesis of gout and the association of ATP receptor (P2X7R) function with single nucleotide polymorphisms and gout arthritis...
2017: PloS One
https://www.readbyqxmd.com/read/28766306/interpretation-of-brain-ct-scans-in-the-field-by-critical-care-physicians-in-a-mobile-stroke-unit
#4
Maren Ranhoff Hov, Erik Zakariassen, Thomas Lindner, Terje Nome, Kristi G Bache, Jo Røislien, Jostein Gleditsch, Volker Solyga, David Russell, Christian G Lund
BACKGROUND AND PURPOSE: In acute stroke, thromboembolism or spontaneous hemorrhage abruptly reduces blood flow to a part of the brain. To limit necrosis, rapid radiological identification of the pathological mechanism must be conducted to allow the initiation of targeted treatment. The aim of the Norwegian Acute Stroke Prehospital Project is to determine if anesthesiologists, trained in prehospital critical care, may accurately assess cerebral computed tomography (CT) scans in a mobile stroke unit (MSU)...
July 27, 2017: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/28749969/topologynet-topology-based-deep-convolutional-and-multi-task-neural-networks-for-biomolecular-property-predictions
#5
Zixuan Cang, Guowei Wei
Although deep learning approaches have had tremendous success in image, video and audio processing, computer vision, and speech recognition, their applications to three-dimensional (3D) biomolecular structural data sets have been hindered by the geometric and biological complexity. To address this problem we introduce the element-specific persistent homology (ESPH) method. ESPH represents 3D complex geometry by one-dimensional (1D) topological invariants and retains important biological information via a multichannel image-like representation...
July 27, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28748116/gout-an-old-disease-in-new-perspective-a-review
#6
REVIEW
Gaafar Ragab, Mohsen Elshahaly, Thomas Bardin
Gout is a picturesque presentation of uric acid disturbance. It is the most well understood and described type of arthritis. Its epidemiology is studied. New insights into the pathophysiology of hyperuricemia and gouty arthritis; acute and chronic allow for an even better understanding of the disease. The role of genetic predisposition is becoming more evident. The clinical picture of gout is divided into asymptomatic hyperuricemia, acute gouty arthritis, intercritical period, and chronic tophaceous gout. Diagnosis is based on laboratory and radiological features...
September 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28746185/clinical-significance-of-delta-neutrophil-index-in-the-differential-diagnosis-between-septic-arthritis-and-acute-gout-attack-within-24-hours-after-hospitalization
#7
Jung Yoon Pyo, Dae Sik Kim, Seung Min Jung, Jason Jungsik Song, Yong-Beom Park, Sang-Won Lee
The most important differential diagnoses of acute monoarticular arthritis are septic arthritis and acute gout attack. Identifying infection is crucial in preventing the devastating outcome of septic arthritis. The delta neutrophil index (DNI) is a value that corresponds to the fraction of circulating immature granulocytes. As DNI reflects the burden of infection, we evaluated this index as a differentiating marker between septic arthritis and acute gout attack.The medical records of 149 patients with septic arthritis and 194 patients with acute gout attack were reviewed...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28732688/molecular-pathophysiology-of-gout
#8
REVIEW
Jyaysi Desai, Stefanie Steiger, Hans-Joachim Anders
Three contradictory clinical presentations of gout have puzzled clinicians and basic scientists for some time: first, the crescendo of sterile inflammation in acute gouty arthritis; second, its spontaneous resolution, despite monosodium urate (MSU) crystal persistence in the synovium; and third, immune anergy to MSU crystal masses observed in tophaceous or visceral gout. Here, we provide an update on the molecular pathophysiology of these gout manifestations, namely, how MSU crystals can trigger the auto-amplification loop of necroinflammation underlying the crescendo of acute gouty arthritis...
July 18, 2017: Trends in Molecular Medicine
https://www.readbyqxmd.com/read/28721093/gout-mimicking-spondyloarthritis-case-report-and-literature-review
#9
Wenji Chen, Yanyan Wang, Yan Li, Zheng Zhao, Lixia Feng, Jian Zhu, Jianglin Zhang, Feng Huang
Gout is clinically characterized by episodes of monoarthritis, which not only typically affects the peripheral joints but also occasionally affect the axial joint, such as the sacroiliac joint (SIJ), and often mimics spondyloarthritis (SpA). Two cases of gout mimicking SpA are presented in the current paper. One patient was a 32-year-old man with a history of asymmetrical oligoarthritis of ankle and metatarsophalangeal joints (MTPJ). He had left gluteal pain for 2 weeks. Computed tomography (CT) and magnetic resonance imaging (MRI) revealed the bone erosion of the left SIJ...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28690186/ccl2-promoter-hypomethylation-is-associated-with-gout-risk-in-chinese-han-male-population
#10
Bin Li, Xiaoying Chen, Yuting Jiang, Yong Yang, Jie Zhong, Cong Zhou, Haochang Hu, Shiwei Duan
OBJECTIVES: C-C motif chemokine ligand 2 (CCL2) encodes a chemokine which amplifies and maintains inflammation through chemokine-cytokine networks. Gout is a type of painful inflammation arthritis in response to the deposition of monosodium urate (MSU) crystals in joints. The purpose of this study was to figure out the role of CCL2 promoter methylation in gout. METHODS: A quantitative methylation-specific polymerase chain reaction (qMSP) was used to measure CCL2 promoter methylation in 93 gout patients and 101 healthy controls, respectively...
July 6, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28678097/the-effect-of-a-community-based-medical-school-on-the-state-and-local-physician-workforce
#11
Julie P Phillips, Andrea L Wendling, Carolyn A Fahey, Brian E Mavis
PURPOSE: To assess the effect of community-based medical education as implemented by Michigan State University College of Human Medicine (MSU-CHM), which has immersed students in diverse communities across Michigan since its founding, on the physician workforce in the six communities in which clinical campuses were initially established. METHOD: The authors used American Medical Association Masterfile data from 2011 to obtain practice locations and specialty data for all MSU-CHM graduates from 1972 through 2006...
July 3, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28644924/intravenous-thrombolysis-for-acute-ischemic-stroke-a-bridge-between-two-centuries
#12
Georgios Tsivgoulis, Odysseas Kargiotis, Andrei Alexandrov
Intravenous tissue-plasminogen activator (tPA) remains the only approved systemic reperfusion therapy suitable for most patients presenting timely with acute ischemic stroke. Accumulating real-word experience for over 20 years regarding tPA safety and effectiveness lead to re-appraisal of original contraindications for intravenous thrombolysis (IVT). Areas covered: This narrative review focuses on fast yet appropriate selection of patients for safe administration of tPA per recently expanded indications. Novel strategies for rapid patient assessment will be discussed...
June 23, 2017: Expert Review of Neurotherapeutics
https://www.readbyqxmd.com/read/28630380/the-immunological-basis-in-the-pathogenesis-of-gout
#13
Junwei Chen, Meng Wu, Jinhua Yang, Jing Wang, Yue Qiao, Xiaofeng Li
Gout is an inflammatory arthritis characterized by red, tender, hot and tumid joints. The development cause and process of gout is very sophisticated; recent studies, notwithstanding, have offered novel perspectives on the mechanism from an immunological viewpoint. The pathological process of gout involves both innate and adaptive immune responses. Other studies have demonstrated that gout development is associated with the presence of monosodium urate (MSU) crystals which serve as a "danger signal" affecting certain immune cells, cytokine production, and effector molecule expression, triggering both types of immune responses...
June 2017: Iranian Journal of Immunology: IJI
https://www.readbyqxmd.com/read/28623927/caffeoylquinic-acid-derivatives-rich-extract-from-gnaphalium-pensylvanicum-willd-ameliorates-hyperuricemia-and-acute-gouty-arthritis-in-animal-model
#14
Yan Jiang, Yan Lin, Yi-Juan Hu, Xiao-Jun Song, Hong-Hua Pan, Hong-Jian Zhang
BACKGROUND: The Gnaphalium pensylvanicum willd. is used in China as a folk medicine to treat anti-inflammatory, cough and rheumatism arthritis. The aim of this study was to evaluate the potential of the extract of G. pensylvanicum to treat hyperuricemia and acute gouty arthritis in animal model. METHODS: G. pensylvanicum extract was evaluated in an experimental model with potassium oxonate (PO) induced hyperuricemia in mice which was used to evaluate anti-hyperuricemia activity and xanthine oxidase (XO) inhibition...
June 17, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28609274/comparison-of-in-vitro-fertilization-outcomes-in-icsi-cycles-after-human-sperm-preparation-by-density-gradient-centrifugation-and-direct-micro-swim-up-without-centrifugation
#15
Simone Palini, Silvia De Stefani, Mariangela Primiterra, Serena Benedetti, Stefano Barone, Luca Carli, Enrico Vaccari, Ulug Murat, Wilfried Feichtinger
OBJECTIVE: The aim of this study was to evaluate the efficacy of a non-expensive, easy and fast technique (direct micro swim-up) for sperm preparation in intracytoplasmic sperm injection (ICSI) treatments without the use of centrifuge. METHODS: We carried out a multicentric study in which a total of 140 ICSI-cycles were included. Sibling oocytes were divided into two groups according to semen preparation procedures: group A, discontinuous gradients (DG) (oocytes n=668), and group B, direct micro swim-up (MSU) (oocytes n=660)...
June 1, 2017: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/28575942/hybrid-znpc-tio2-nanostructures-for-targeted-photodynamic-therapy-bioimaging-and-doxorubicin-delivery
#16
Dorota Flak, Luis Yate, Grzegorz Nowaczyk, Stefan Jurga
In this study ZnPc@TiO2 hybrid nanostructures, both nanoparticles and nanotubes, as potential photosensitizers for the photodynamic therapy, fluorescent bioimaging agents, as well as anti-cancer drug nanocarriers, were prepared via zinc phthalocyanine (ZnPc) deposition on TiO2. In order to provide the selectivity of prepared hybrid nanostructures towards cancer cells they were modified with folic acid molecules (FA). The efficient attachment of both ZnPc and FA molecules was confirmed with dynamic light scattering (DLS), zeta potential measurements and X-ray photoelectron spectroscopy (XPS)...
September 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28553414/esbl-production-among-e-coli-and-klebsiella-spp-causing-urinary-tract-infection-a-hospital-based-study
#17
Pooja Shakya, Dhiraj Shrestha, Elina Maharjan, Vijay K Sharma, Rabin Paudyal
INTRODUCTION: Increase in extended-spectrum β-lactamases (ESBL) producing microbes in recent years has led to limitations of treatment options. This study aimed to assess the prevalence of ESBL producing E. coli and Klebsiella spp. at a tertiary hospital in Nepal. METHODS: A total of 2209 non-repetitive mid-stream urine (MSU) samples were collected during the study period (March to September 2014). Identification of the isolates was done by Gram's staining followed by biochemical tests...
2017: Open Microbiology Journal
https://www.readbyqxmd.com/read/28550118/s100a9-potentiates-the-activation-of-neutrophils-by-the-etiological-agent-of-gout-monosodium-urate-crystals
#18
Louis-Simon Rousseau, Guillaume Paré, Asmaa Lachhab, Paul H Naccache, François Marceau, Philippe Tessier, Martin Pelletier, Maria Fernandes
Gout is one of the most painful types of arthritis that arises when the body mounts an acute inflammatory reaction against a crystallized form of uric acid known as monosodium urate crystals (MSUs). Although MSUs are known to activate neutrophils, the most abundant leukocyte in the synovial fluid of patients with gout, few studies have investigated the effect on neutrophils of the simultaneous stimulation with MSU and proinflammatory mediators in the inflamed joint. Herein, we focused on a protein that is highly expressed in the synovium in gout, S100A9...
May 26, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28539925/cxcl9-derived-peptides-differentially-inhibit-neutrophil-migration-in-vivo-through-interference-with-glycosaminoglycan-interactions
#19
Vincent Vanheule, Daiane Boff, Anneleen Mortier, Rik Janssens, Björn Petri, Elzbieta Kolaczkowska, Paul Kubes, Nele Berghmans, Sofie Struyf, Andreas J Kungl, Mauro Martins Teixeira, Flavio Almeida Amaral, Paul Proost
Several acute and chronic inflammatory diseases are driven by accumulation of activated leukocytes due to enhanced chemokine expression. In addition to specific G protein-coupled receptor-dependent signaling, chemokine-glycosaminoglycan (GAG) interactions are important for chemokine activity in vivo. Therefore, the GAG-chemokine interaction has been explored as target for inhibition of chemokine activity. It was demonstrated that CXCL9(74-103) binds with high affinity to GAGs, competed with active chemokines for GAG binding and thereby inhibited CXCL8- and monosodium urate (MSU) crystal-induced neutrophil migration to joints...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28523573/activation-of-nlrp3-inflammasome-in-inflammatory-bowel-disease-differences-between-crohn-s-disease-and-ulcerative-colitis
#20
Lazaros-Dimitrios Lazaridis, Aikaterini Pistiki, Evangelos J Giamarellos-Bourboulis, Marianna Georgitsi, Georgia Damoraki, Dimitrios Polymeros, George D Dimitriadis, Konstantinos Triantafyllou
BACKGROUND: NLRP3 inflammasome is a multimolecular cytosol complex that, when activated, contributes to the cleavage of pro-interleukin (IL)-1β to IL-1β. AIMS: To investigate NLRP3 inflammasome activation in inflammatory bowel disease. METHODS: Peripheral blood mononuclear cells from Crohn's disease (CD), ulcerative colitis (UC) patients and controls were stimulated with LPS in the absence or presence of MSU. After incubation, concentrations of IL-1β, IL-6, and TNFα were measured in cell supernatants and concentration of pro-IL-1β was measured in cell lysates...
May 18, 2017: Digestive Diseases and Sciences
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