keyword
MENU ▼
Read by QxMD icon Read
search

Monosodium urate crystal

keyword
https://www.readbyqxmd.com/read/28508104/quercetin-inhibits-gout-arthritis-in-mice-induction-of-an-opioid-dependent-regulation-of-inflammasome
#1
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
#2
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 8, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28467984/neutrophil-extracellular-traps-stimulate-proinflammatory-responses-in-human-airway-epithelial-cells
#3
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...
May 4, 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
#4
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/28457098/crystal-induced-arthropathy-in-elderly-patients-hospitalized-for-acute-conditions
#5
Andrew Villion, Zeev Arinzon, Jacob Feldman, Oded Kimchi, Yitshal Berner
BACKGROUND: Arthritis and arthralgia are painful symptoms experienced by many elderly patients during hospitalization. Crystal-induced arthritis (CIA) is one of the most common causes of arthritis worldwide and represents the most common cause of acute arthritis in the elderly. OBJECTIVES: To determine the incidence of both acute new onset or acute exacerbation of CIA among elderly patients hospitalized due to an acute medical illness. METHODS: This study comprised 85 patients...
March 2017: Israel Medical Association Journal: IMAJ
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
#6
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 [160 mg/kg], middle dose [80 mg/kg] and low dose [40 mg/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 respetively...
April 26, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28456346/management-of-gout-and-hyperuricemia-in-ckd
#7
Ana Beatriz Vargas-Santos, Tuhina Neogi
Hyperuricemia and gout, the clinical manifestation of monosodium urate crystal deposition, are common in patients with chronic kidney disease (CKD). Although the presence of CKD poses additional challenges in gout management, effective urate lowering is possible for most patients with CKD. Initial doses of urate-lowering therapy are lower than in the non-CKD population, whereas incremental dose escalation is guided by regular monitoring of serum urate levels to reach the target level of <6mg/dL (or <5mg/dL for patients with tophi)...
April 26, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28425217/the-release-of-pro-inflammatory-cytokines-is-mediated-via-map-kinases-rather-than-inflammasome-signaling-pathway-in-keratinocytes
#8
Thomas Ondet, Béatrice Muscatelli-Groux, Cédric Coulouarn, Sacha Robert, Thomas Gicquel, Aude Bodin, Vincent Lagente, Jean-Alexis Grimaud
Toll like receptors (TLRs) are expressed in the skin and airway epithelial tissues, which are the most important sites of host-pathogen interactions. TLRs recognize the three-dimensional structure of pathogen associated molecules and are thus useful markers of the innate immune response. Here, we investigated the role of lipopolysaccharides (LPS) and monosodium urate (MSU) crystals in the activation of the TLR and Nod Like Receptors (NLR) pathways in human keratinocytes. Analysis of the inflammasome compounds revealed that NLRP3 and TLR4, both of which are components of inflammasome complexes involved in the activation of IL-1β, were not expressed in keratinocytes...
April 20, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28424907/the-added-value-of-synovial-fluid-centrifugation-for-monosodium-urate-and-calcium-pyrophosphate-crystal-detection
#9
D Boumans, M E Hettema, H E Vonkeman, R G Maatman, M A van de Laar
The aim of the study was to assess the added value of synovial fluid (SF) centrifugation for microscopic monosodium urate (MSU) and calcium pyrophosphate (CPP) crystal detection in patients with arthritis. This is a prospective observational study using SF samples from joints of patients undergoing joint arthrocentesis. Two blinded observers assessed the SF smears by polarized light microscopy for the presence of crystals before as well as after centrifugation. SF samples were collected from 98 patients with arthritis...
April 19, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28422890/an-unusual-location-of-gouty-panniculitis-a-case-report
#10
David Martin, Gaëtan-Romain Joliat, Pierre Fournier, Christophe Brunel, Nicolas Demartines, Olivier Gié
RATIONALE: Gouty panniculitis, characterised by the deposition of monosodium urate crystals in subcutaneous tissue, is a rare clinical manifestation of gout. PATIENT CONCERNS: The case of a 67-year-old man is reported, who presented an erythematous nodule on the upper part of the right buttock suspicious for an abscess. This was in the context of chemotherapy for non-Hodgkin's lymphoma. DIAGNOSES: Histopathologic examination demonstrated gouty panniculitis...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28390941/effects-of-gnaphalium-affine-d-don-on-hyperuricemia-and-acute-gouty-arthritis
#11
Hong-Jian Zhang, Ling-Nan Li, Jie Zhou, Qin-Qin Yang, Pei-Gang Liu, Pan Xu, Wei-Qing Liang, Lin Cheng, Ying-Qi Zhang, Jin-Bao Pu, Yi-Juan Hu
ETHNOPHARMACOLOGICAL RELEVANCE: The Gnaphalium affine D. Don is used in China as a folk medicine to treat gout, anti-inflammatory, antitussive and expectorant activities. The aim of this study was to evaluate the potential of the extract of G. affine to treat hyperuricemia and acute gouty arthritis in animal model. MATERIALS AND METHODS: G. affine 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...
May 5, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28376889/grape-seed-derived-procyanidins-alleviate-gout-pain-via-nlrp3-inflammasome-suppression
#12
Hai-Jiao Liu, Xiu-Xiu Pan, Bing-Qian Liu, Xuan Gui, Liang Hu, Chun-Yi Jiang, Yuan Han, Yi-Xin Fan, Yu-Lin Tang, Wen-Tao Liu
BACKGROUND: Gout is one of the common inflammatory arthritis which affects many people for inflicting unbearable pain. Macrophage-mediated inflammation plays an important role in gout. The uptake of monosodium urate (MSU) crystals by macrophages can lead to activation of NOD-like receptors containing a PYD 3 (NLRP3) inflammasome, thus accelerating interleukin (IL)-1β production. Reactive oxygen species (ROS) promoted development of the inflammatory process through NLRP3 inflammasome...
April 4, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28373994/neutrophil-extracellular-traps-and-microcrystals
#13
REVIEW
Balázs Rada
Neutrophil extracellular traps represent a fascinating mechanism by which PMNs entrap extracellular microbes. The primary purpose of this innate immune mechanism is thought to localize the infection at an early stage. Interestingly, the ability of different microcrystals to induce NET formation has been recently described. Microcrystals are insoluble crystals with a size of 1-100 micrometers that have different composition and shape. Microcrystals have it in common that they irritate phagocytes including PMNs and typically trigger an inflammatory response...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28349197/performance-of-the-2015-american-college-of-rheumatology-european-league-against-rheumatism-gout-classification-criteria-in-thai-patients
#14
Worawit Louthrenoo, Kanon Jatuworapruk, Panomkorn Lhakum, Nuttaya Pattamapaspong
To evaluate the sensitivity and specificity of the 2015 American College of Rheumatology/European League Against Rheumatism (ACR/EULAR) gout classification criteria in Thai patients presenting with acute arthritis in a real-life setting. Data were analyzed on consecutive patients presenting with arthritis of less than 2 weeks duration. Sensitivity and specificity were calculated by using the presence of monosodium urate (MSU) crystals in the synovial fluid or tissue aspirate as gold standard for gout diagnosis...
May 2017: Rheumatology International
https://www.readbyqxmd.com/read/28329594/perforating-gout-of-the-ear
#15
Leigh Sutton, Palak Parekh
Gout is the most common cause of inflammatory arthritis in men over 40 [1]. The prevalence of gout in the US is approximately 3.9%. Tophus is a characteristic sign of gout and results when monosodium urate deposits at the joint, skin, or cartilage. Tophi develop in 12-35% of patients who are diagnosed with gout [2]. We report a case of a 70-year-old man who was diagnosed with squamous cell carcinoma of the helix via shave biopsy. During Mohs micrographic surgery, a vigorous foreign-body reaction was noted. Review of the initial biopsy slides identified crystals with pseudoepitheliomatous hyperplasia (PEH) rendering a diagnosis of gout...
October 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28304005/cubital-tunnel-syndrome-secondary-to-gouty-tophi-a-case-report
#16
Hatice Resorlu, Coskun Zateri, Ayla Akbal, Ferhat Gokmen, Gurhan Adam, Serhad Bilim, Emre Bozkurt
Gout is a chronic rheumatic disease resulting from accumulation of monosodium urate crystals in tissues. The most important risk factor for the disease is hyperuricaemia. Precipitation of uric acid in the joint in the form of monosodium urate crystals is the main factor responsible for triggering attacks of arthritis. Tophi occur as a result of urate crystals that precipitate into joints and surrounding tissues. Tophi can erode the bone where they are located and cause compression in soft tissue due to a mass effect...
March 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28248892/a-repeated-carpal-tunnel-syndrome-due-to-tophaceous-gout-in-flexor-tendon-a-case-report
#17
Hui Lu, Qiang Chen, Hui Shen
RATIONALE: Gouty tophi is a rare cause of CTS. We first report a unique case of repeated CTS with gouty tophi in flexor tendon. In the previous literature, the symptoms cases of CTS were gradually increased. PATIENT CONCERNS: We report a 44-year-old male porter presented with mass on his left distal forearm combined a repeated carpal tunnel syndrome for 5 years. He felt numbness in fingers and his left palmar. The CTS symptoms had been eased through rest and dugs medication...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28240795/combining-hyperechoic-aggregates-and-the-double-contour-sign-increases-the-sensitivity-of-sonography-for-detection-of-monosodium-urate-deposits-in-gout
#18
Liang Zhu, Shengzhou Zheng, Wenwen Wang, Qijing Zhou, Huaxiang Wu
OBJECTIVES: To compare the sensitivities of individual and combined sonography of hyperechoic aggregates and the double-contour sign in detecting monosodium urate (MSU) crystal deposits in gouty joints. METHODS: Monosodium urate crystal deposits in symptomatic and contralateral asymptomatic joints of 70 patients with acute gout were evaluated by sonography of hyperechoic aggregates and the double-contour sign individually and in combination. All patients with acute gout in this study had at least 1 symptomatic joint with MSU deposits determined by dual-energy computed tomography...
May 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28238226/dual-energy-ct-in-gout-a-review-of-current-concepts-and-applications
#19
REVIEW
Hong Chou, Teck Yew Chin, Wilfred C G Peh
Dual-energy computed tomography (DECT) is a relatively recent development in the imaging of gouty arthritis. Its availability and usage have become increasingly widespread in recent years. DECT is a non-invasive method for the visualisation, characterisation and quantification of monosodium urate crystal deposits which aids the clinician in the early diagnosis, treatment and follow-up of this condition. This article aims to give an up to date review and summary of existing literature on the role and accuracy of DECT in the imaging of gout...
March 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/28229032/role-of-dual-energy-computed-tomography-imaging-in-the-diagnosis-of-gout
#20
REVIEW
Divya Jayakumar, Shiv T Sehra, Suneesh Anand, Gary W Stallings, Abhijeet Danve
Gout is a well-known inflammatory arthritis and affects four percent of the United States population. It results from the deposition of uric acid crystals in joints, tendons, bursae, and other surrounding tissues. Prevalence of gout has increased in the recent decade. Gout is usually seen in conjunction with other chronic comorbid conditions like cardiac disease, metabolic syndrome, and renal disease. The diagnosis of this inflammatory arthritis is confirmed by visualization of monosodium urate (MSU) crystals in the synovial fluid...
January 20, 2017: Curēus
keyword
keyword
38912
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"