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https://www.readbyqxmd.com/read/28721093/gout-mimicking-spondyloarthritis-case-report-and-literature-review
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
https://www.readbyqxmd.com/read/28508104/quercetin-inhibits-gout-arthritis-in-mice-induction-of-an-opioid-dependent-regulation-of-inflammasome
#13
Kenji W Ruiz-Miyazawa, Larissa Staurengo-Ferrari, Sandra S Mizokami, Talita P Domiciano, Fabiana T M C Vicentini, Doumit Camilios-Neto, Wander R Pavanelli, Phileno Pinge-Filho, Flávio A Amaral, Mauro M Teixeira, Rubia Casagrande, Waldiceu A Verri
We investigated the anti-inflammatory and analgesic effects of quercetin in monosodium urate crystals (MSU)-induced gout arthritis, and the sensitivity of quercetin effects to naloxone, an opioid receptor antagonist. Mice were treated with quercetin, and mechanical hyperalgesia was assessed at 1-24 h after MSU injection. In vivo, leukocyte recruitment, cytokine levels, oxidative stress, NFκB activation, and gp91(phox) and inflammasome components (NLRP3, ASC, Pro-caspase-1, and Pro-IL-1β) mRNA expression by qPCR were determined in the knee joints at 24 h after MSU injection...
May 15, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28484006/uric-acid-priming-in-human-monocytes-is-driven-by-the-akt-pras40-autophagy-pathway
#14
Tania O Crişan, Maartje C P Cleophas, Boris Novakovic, Kathrin Erler, Frank L van de Veerdonk, Hendrik G Stunnenberg, Mihai G Netea, Charles A Dinarello, Leo A B Joosten
Metabolic triggers are important inducers of the inflammatory processes in gout. Whereas the high serum urate levels observed in patients with gout predispose them to the formation of monosodium urate (MSU) crystals, soluble urate also primes for inflammatory signals in cells responding to gout-related stimuli, but also in other common metabolic diseases. In this study, we investigated the mechanisms through which uric acid selectively lowers human blood monocyte production of the natural inhibitor IL-1 receptor antagonist (IL-1Ra) and shifts production toward the highly inflammatory IL-1β...
May 23, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28480171/pathogenicity-in-polg-syndromes-dna-polymerase-gamma-pathogenicity-prediction-server-and-database
#15
Anssi Nurminen, Gregory A Farnum, Laurie S Kaguni
DNA polymerase gamma (POLG) is the replicative polymerase responsible for maintaining mitochondrial DNA (mtDNA). Disorders related to its functionality are a major cause of mitochondrial disease. The clinical spectrum of POLG syndromes includes Alpers-Huttenlocher syndrome (AHS), childhood myocerebrohepatopathy spectrum (MCHS), myoclonic epilepsy myopathy sensory ataxia (MEMSA), the ataxia neuropathy spectrum (ANS) and progressive external ophthalmoplegia (PEO). We have collected all publicly available POLG-related patient data and analyzed it using our pathogenic clustering model to provide a new research and clinical tool in the form of an online server...
June 2017: BBA Clinical
https://www.readbyqxmd.com/read/28479906/factors-associated-with-community-acquired-urinary-tract-infections-among-adults-attending-assessment-centre-mulago-hospital-uganda
#16
Deus Kabugo, Samuel Kizito, Dave Dhara Ashok, Kiwanuka Alexander Graham, Ronald Nabimba, Sandra Namunana, M Richard Kabaka, Beatrice Achan, Florence C Najjuka
BACKGROUND: Urinary tract infections (UTI) are a common medical problem affecting the general population and thus commonly encountered in medical practice, with the global burden of UTIs at about 150 million people. Because uropathogens largely originate from colonic flora, they are easy to predict, and this is the rationale for empirical treatment in Community Acquired-UTI (CA-UTIs). With the increasing prevalence of drug-resistant bacteria among adults with CA-UTI in Uganda, it is no longer adequate to manage CA-UTIs on empiric regimen without revising the susceptibility patterns of common CA-UTI causative agents...
December 2016: African Health Sciences
https://www.readbyqxmd.com/read/28467984/neutrophil-extracellular-traps-stimulate-proinflammatory-responses-in-human-airway-epithelial-cells
#17
Florencia Sabbione, Irene A Keitelman, Leonardo Iula, Mariana Ferrero, Mirta N Giordano, Pablo Baldi, Martín Rumbo, Carolina Jancic, Analía S Trevani
Tissue injury leads to the release of uric acid (UA). At high local concentrations, UA can form monosodium urate crystals (MSU). MSU and UA stimulate neutrophils to release extracellular traps (NET). Here, we investigated whether these NET could be involved in the development of inflammation by stimulating cytokine release by airway epithelial cells. We found that NET significantly increased the secretion of CXCL8/IL-8 and IL-6 by alveolar and bronchial epithelial cells. These effects were not observed when NETosis was inhibited by Diphenyleneiodonium, elastase inhibitor, or Cl-amidine...
2017: Journal of Innate Immunity
https://www.readbyqxmd.com/read/28464949/monosodium-urate-crystal-deposition-associated-with-the-progress-of-radiographic-grade-at-the-sacroiliac-joint-in-axial-spa-a-dual-energy-ct-study
#18
Junqing Zhu, Aiwu Li, Ertao Jia, Yi Zhou, Juan Xu, Shixian Chen, Yinger Huang, Xiang Xiao, Juan Li
BACKGROUND: Previous studies have revealed that ankylosing spondylitis (AS), as the progenitor of axial spondyloarthritis (AxSpA), has been characterized by the insidiously progressive nature of sacroiliitis and spondylitis. Dual-energy computed tomography (DECT) has recently been used to analyse the deposition of monosodium urate (MSU) crystals with higher sensitivity and specificity. However, it remains unclear whether the existence of the MSU crystal deposition detected by DECT at the sacroiliac joint in patients with AxSpA also is associated with the existing structural damage...
May 2, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28463826/a-case-controlled-study-examining-the-bladder-microbiome-in-women-with-overactive-bladder-oab-and-healthy-controls
#19
Natasha Curtiss, Aswini Balachandran, Louise Krska, Claire Peppiatt-Wildman, Scott Wildman, Jonathan Duckett
OBJECTIVE: To characterise the microbiome in healthy women with no bladder symptoms and to compare this to the bladder microbiome in patients with overactive bladder syndrome (OAB). STUDY DESIGN: MSU specimens from 63 women with OAB were compared to urine from 35 controls. Urine was centrifuged and the resulting sediment pellet was re-suspended in supernatant and plated under aerobic conditions for 48h and anaerobic conditions for 7days. Each morphologically distinct colony was purity plated...
July 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28456576/influence-of-the-total-saponin-fraction-from-dioscorea-nipponica-makino-on-tlr2-4-il1r-receptor-singnal-pathway-in-rats-of-gouty-arthritis
#20
Qi Zhou, Fang Fang Lin, Shu Min Liu, Xiao Fang Sui
ETHNOPHARMACOLOGICAL RELEVANCE: Dioscorea nipponica Makino have been extensively used in traditional medicine for the treatment of arthritic diseases, particularly gouty arthritis (GA). MATERIALS AND METHODS: Sixty male Wistar rats were divided into six groups: the normal group, model group, colchicine group (COL) and three total saponin groups (RDN) (high dose [160mg/kg], middle dose [80mg/kg] and low dose [40mg/kg]). The mRNA and protein expression levels of TLR2, TLR4, IRAK1, TRAF6, TAK1, IKKα, IκBα and NF-κB in the synovial tissue of joint were detected by realtime PCR and WB methods respectively...
July 12, 2017: Journal of Ethnopharmacology
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