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Yan Lin, Pei-Gang Liu, Wei-Qing Liang, Yi-Juan Hu, Pan Xu, Jie Zhou, Jin-Bao Pu, Hong-Jian Zhang
BACKGROUND: Gnaphalium affine D. Don is a folk medicine of China believed to be efficacious in the treatment of many ailments, including hyperuricemia and gout. PURPOSE: Based on a previous study, we isolated two flavones, luteolin and luteolin-4'-O-glucoside, from G. affine. Our aim was to assess the potential beneficial effects of treatment and mechanisms of these two flavones on hyperuricemia and acute gouty arthritis. METHODS: The model of potassium oxonate (PO)-induced hyperuricemia and monosodium urate (MSU) crystal-induced inflammation in mice has been established...
March 1, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
Kristi G Bache, Maren Ranhoff Hov, Karianne Larsen, Volker Moræus Solyga, Christian G Lund
BACKGROUND: Acute ischemic stroke (AIS) is a medical emergency. The outcome is closely linked to the time elapsing from symptom onset to treatment, and seemingly small delays can mean the difference between full recovery and physical and cognitive dysfunction. Recanalization to allow blood to reenter the affected area is most efficient immediately after symptoms occur, and intravenous thrombolysis must be initiated no later than 4.5 hours after the symptom onset. A liable diagnosis is mandatory to administer the appropriate treatment...
February 28, 2018: JMIR Research Protocols
Teng Ma, Xiao Liu, Zhifu Cen, Chuan Xin, Mingfeng Guo, Chaoyu Zou, Wenpeng Song, Rou Xie, Kailun Wang, Hong Zhou, Jun Zhang, Zhen Wang, Ce Bian, Kaijun Cui, Jiong Li, Yu-Quan Wei, Jing Li, Xikun Zhou
BACKGROUND: Interleukin-1β (IL-1β) is a pivotal proinflammatory cytokine that is strongly associated with the inflammation of gout. However, the underlying mechanism through which the production of IL-1β is regulated has not been fully elucidated. Our previous work identified that miR-302b had an important immune regulatory role in bacterial lung infections. This study was conducted to evaluate the function of miR-302b on monosodium urate (MSU) crystal-induced inflammation and its mechanism...
February 26, 2018: Arthritis Research & Therapy
Yachun Han, Xiaoxuan Xu, Chengyuan Tang, Peng Gao, Xianghui Chen, Xiaofen Xiong, Ming Yang, Shikun Yang, Xuejing Zhu, Shuguang Yuan, Fuyou Liu, Li Xiao, Yashpal S Kanwar, Lin Sun
NLRP3/IL-1β activation via thioredoxin (TRX)/thioredoxin-interacting protein (TXNIP) following mitochondria ROS (mtROS) overproduction plays a key role in inflammation. However, the involvement of this process in tubular damage in the kidneys of patients with diabetic nephropathy (DN) is unclear. Here, we demonstrated that mtROS overproduction is accompanied by decreases in TRX expression and TXNIP up-regulation. In addition, we discovered that mtROS overproduction is also associated with increases in NLRP3/IL-1β and TGF-β expression in the kidneys of patients with DN and db/db mice...
February 15, 2018: Redox Biology
Kiren Gill, Ryoon Kang, Sanchutha Sathiananthamoorthy, Rajvinder Khasriya, James Malone-Lee
INTRODUCTION AND HYPOTHESIS: This study sought to characterise the microbial ecology of the lower urinary tract in patients with symptoms of overactive bladder (OAB) using culture of the urinary urothelial cell sediment. The pathological significance of the microbiome was assessed through its relationship with known urothelial inflammatory markers and patient reported symptoms. METHODS: Adult female patients with OAB symptoms and asymptomatic controls were assessed at 12 study visits scheduled every 4 weeks...
February 17, 2018: International Urogynecology Journal
In-Gu Lee, Heejin Lee, Bo Sung Kang, Young-Min Kim, Sang Chai Kim, Sang-Chul Jung, Chang Hyun Ko, Young-Kwon Park
The catalytic hydrodeoxygenation (HDO) of bio-oil over Ni-supported mesoporous materials was performed using a high pressure autoclave reactor. The actual pyrolysis oil of cork oak wood was used as a sample, and Ni/Al-SBA-15 and Ni/Al-MSU-F were used as catalysts. In addition, supercritical ethanol was added as solvent. Both Ni-supported mesoporous catalysts showed efficient HDO reaction ability. A higher heating value and pH of bio-oil were achieved by the HDO reaction over both catalysts and upgraded bio-oil had a lower viscosity...
February 1, 2018: Journal of Nanoscience and Nanotechnology
Yuan Yuan, Chang Liu, Xi Xiang, Tong-Ling Yuan, Li Qiu, Yi Liu, Yu-Bin Luo, Y Zhao, Martin Herrmann
OBJECTIVE: The present study was performed to localize the articular deposition of monosodium urate (MSU) crystal in joints. We compare the detection efficiencies of dual-energy CT (DECT) and ultrasound scans. METHODS: Analyses by DECT and ultrasound were performed with 184 bilateral joints of the lower limbs of 54 consecutive gout patients. All joints were categorized into (1) knee, (2) ankle, (3) MTP1, and (4) MTP2, and sorted into those with and those without detectable MSU deposition...
February 13, 2018: Rheumatology International
Young-Eun Ji, Xiao Sun, Myong-Ki Kim, Wan Yi Li, Sang Woo Lee, Sushruta Koppula, Sang-Hyeun Yu, Han-Bi Kim, Tae-Bong Kang, Kwang-Ho Lee
Eucalyptus globulus Labill. (E. globulus, Myrtaceae) is used in Europe as a traditional folk remedy for inflammation-related disorders such as arthritis, diabetes, asthma, and gout. We investigated this study to evaluate the protective effects of E. globulus extract (EG) on inflammatory responses, and provide scientific and mechanistic evidence in in vitro and in vivo experimental models. LPS-stimulated murine bone marrow-derived macrophages (BMDMs) were used to study the regulatory effect of EG on inflammasome activation in vitro...
February 12, 2018: American Journal of Chinese Medicine
Benjamin R Kummer, Michael P Lerario, Babak B Navi, Adam C Ganzman, Daniel Ribaudo, Saad A Mir, Sammy Pishanidar, Tim Lekic, Olajide Williams, Hooman Kamel, Randolph S Marshall, George Hripcsak, Mitchell S V Elkind, Matthew E Fink
BACKGROUND:  Mobile stroke units (MSUs) reduce time to thrombolytic therapy in acute ischemic stroke. These units are widely used, but the clinical information systems underlying MSU operations are understudied. OBJECTIVE:  The first MSU on the East Coast of the United States was established at New York Presbyterian Hospital (NYP) in October 2016. We describe our program's 7-month pilot, focusing on the integration of our hospital's clinical information systems into our MSU to support patient care and research efforts...
January 2018: Applied Clinical Informatics
Xiaole Yin, Xiao-Tao Jiang, Benli Chai, Liguan Li, Ying Yang, James R Cole, James M Tiedje, Tong Zhang
Motivation: Much global attention has been paid to antibiotic resistance in monitoring its emergence, accumulation and dissemination. For rapid characterization and quantification of antibiotic resistance genes (ARGs) in metagenomic datasets, an online analysis pipeline, ARGs-OAP has been developed consisting of a database termed Structured Antibiotic Resistance Genes (the SARG) with a hierarchical structure (ARGs type-subtype-reference sequence). Results: The new release of the database, termed SARG version 2...
February 2, 2018: Bioinformatics
M Gamala, S P Linn-Rasker, M Nix, B G F Heggelman, J M van Laar, P C M Pasker-de Jong, J W G Jacobs, R Klaasen
To establish whether dual-energy CT (DECT) is a diagnostic tool, i.e., associated with initiation or discontinuation of a urate lowering drug (ULD). Secondly, to determine whether DECT results (gout deposition y/n) can be predicted by clinical and laboratory variables. Digital medical records of 147 consecutive patients with clinical suspicion of gout were analyzed retrospectively. Clinical data including medication before and after DECT, lab results, and results from diagnostic joint aspiration and DECT were collected...
January 27, 2018: Clinical Rheumatology
Xiaoliang Wang, Shida Yousefi, Hans-Uwe Simon
Necroptosis is a form of regulated necrosis and is dependent on a signaling pathway involving receptor interacting protein kinase-3 (RIPK3) and mixed lineage kinase domain-like protein (MLKL). Necroptosis is considered to have important functions in inflammation and, based on studies with animal disease models, is believed likely to be involved in the pathogenesis of many human inflammatory diseases. In neutrophils, necroptosis has recently been reported to be triggered by tumor necrosis factor (TNF) stimulation, ligation of adhesion receptors, exposure to monosodium urate (MSU) crystals, or phagocytosis of Staphylococcus aureus (S...
January 25, 2018: Cell Death & Disease
Alexander Hk Montoye, Bradford S Westgate, Morgan R Fonley, Karin A Pfeiffer
Wrist-worn accelerometers are gaining popularity for measurement of physical activity. However, few methods for predicting physical activity intensity from wrist-worn accelerometer data have been tested on data not used to create the methods (out-of-sample data). This study utilized two previously collected datasets (BSU and MSU) in which participants wore a GENEActiv accelerometer on the left wrist while performing sedentary, lifestyle, ambulatory, and exercise activities in simulated free-living settings...
January 25, 2018: Journal of Applied Physiology
Simon M Chatfield, Kathrin Grebe, Lachlan W Whitehead, Kelly L Rogers, Thomas Nebl, James M Murphy, Ian P Wicks
Neutrophil extracellular traps (NETs) and the cell death associated with it (NETosis) have been implicated in numerous diseases. Mechanistic studies of NETosis have typically relied on nonphysiological stimuli, such as PMA. The human disease of gout is caused by monosodium urate (MSU) crystals. We observed that DNA consistent with NETs is present in fluid from acutely inflamed joints of gout patients. NETs also coat the crystals found in uninflamed tophi of chronic gout patients. We developed a quantitative, live cell imaging assay, which measures the key features of NETosis, namely, cell death and chromatin decondensation...
March 1, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
Kuang-Hui Yu, Der-Yuan Chen, Jiunn-Horng Chen, Shih-Yang Chen, Shyh-Ming Chen, Tien-Tsai Cheng, Song-Chou Hsieh, Tsu-Yi Hsieh, Pai-Feng Hsu, Chang-Fu Kuo, Mei-Chuan Kuo, Hing-Chung Lam, I-Te Lee, Toong-Hua Liang, Hsiao-Yi Lin, Shih-Chang Lin, Wen-Pin Tsai, Gregory J Tsay, James Cheng-Chung Wei, Chung-Han Yang, Wen-Chan Tsai
Gout is an inflammatory disease manifested by the deposition of monosodium urate (MSU) crystals in joints, cartilage, synovial bursa, tendons or soft tissues. Gout is not a new disease, which was first documented nearly 5,000 years ago. The prevalence of gout has increased globally in recent years, imposing great disease burden worldwide. Moreover, gout or hyperuricemia is clearly associated with a variety of comorbidities, including cardiovascular diseases, chronic kidney disease, urolithiasis, metabolic syndrome, diabetes mellitus, thyroid dysfunction, and psoriasis...
January 24, 2018: International Journal of Rheumatic Diseases
Dmitry Suplatov, Yana Sharapova, Daria Timonina, Kirill Kopylov, Vytas Švedas
The visualCMAT web-server was designed to assist experimental research in the fields of protein/enzyme biochemistry, protein engineering, and drug discovery by providing an intuitive and easy-to-use interface to the analysis of correlated mutations/co-evolving residues. Sequence and structural information describing homologous proteins are used to predict correlated substitutions by the Mutual information-based CMAT approach, classify them into spatially close co-evolving pairs, which either form a direct physical contact or interact with the same ligand (e...
December 28, 2017: Journal of Bioinformatics and Computational Biology
Cory Iverson, Andrew Bacong, Sha Liu, Scott Baumgartner, Torbjörn Lundström, Jan Oscarsson, Jeffrey N Miner
This study assesses the efficacy and exposure-response relationship of omega-3-carboxylic acids (OM-3 CA) in models of crystal-based inflammation. Human THP-1 macrophages and primary peripheral blood mononuclear cells exposed to multiple inflammatory crystal types were used to determine the anti-inflammatory potential of omega-3 (OM-3) fatty acids in vitro. Anti-inflammatory effects of OM-3 CA in vivo were tested in rat monosodium urate (MSU) crystal air pouch and rat knee intra-articular MSU injection models...
January 19, 2018: Scientific Reports
André Ramon, Amélie Bohm-Sigrand, Pierre Pottecher, Pascal Richette, Jean-Francis Maillefert, Herve Devilliers, Paul Ornetti
The aim of this systematic review was to determine the potential role of dual-energy CT in the diagnosis and follow-up of gout with regard to the Outcome Measures in Rheumatology (OMERACT) filter. A systematic analysis of the literature was conducted using the MEDLINE and Cochrane databases and published abstracts of international congresses, according to the criteria of the OMERACT filter: feasibility, reproducibility, validity versus laboratory (serum urate, MSU synovial fluid aspirate) and other imaging modalities for gout, and its sensitivity to change in patients on urate lowering therapy (ULT)...
January 19, 2018: Clinical Rheumatology
Sandeep Sharma, Alex Z Zaccaron, John B Ridenour, Tom W Allen, Kassie Conner, Vinson P Doyle, Trey Price, Edward Sikora, Raghuwinder Singh, Terry Spurlock, Maria Tomaso-Peterson, Tessie Wilkerson, Burton H Bluhm
The draft genome of Xylaria sp. isolate MSU_SB201401, causal agent of taproot decline of soybean in the southern U.S., is presented here. The genome assembly was 56.7 Mb in size with an L50 of 246. A total of 10,880 putative protein-encoding genes were predicted, including 647 genes encoding carbohydrate-active enzymes and 1053 genes encoding secreted proteins. This is the first draft genome of a plant-pathogenic Xylaria sp. associated with soybean. The draft genome of Xylaria sp. isolate MSU_SB201401 will provide an important resource for future experiments to determine the molecular basis of pathogenesis...
April 2018: Data in Brief
Gabsik Yang, Sang Hyeon Yeon, Hye Eun Lee, Han Chang Kang, Yong Yeon Cho, Hye Suk Lee, Joo Young Lee
Objective: The aetiology of gout is closely linked to the deposition of monosodium uric acid (MSU) crystals and the consequent activation of the NOD-like receptor family, pyrin domain containing 3 (NLRP3) inflammasome. In this study, we investigated whether oral administration of an NLRP3 inhibitor would be effective to attenuate the symptoms of gout. Methods: The effects of oral administration with sulforaphane (SFN) were examined in two mouse models of acute gout induced by injection of MSU crystals into footpads or air pouch...
January 10, 2018: Rheumatology
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