Aim: To examine gastric biopsies with polarization microscopy for detection of sodium monourate crystals (SMC).
Material And Methods: The trial included 20 patients with gout diagnosis (mean age 55.7 years, mean duration of the disease 12.3 years) in whom esophagogastroduodenoscopy was made with biopsy of gastric mucosa from the antral part of the stomach and middle third of the gastric body.
Results: Crystals in the biopsy specimens were detected in 11 of 20 examinees. The crystals were characterized by strong double refraction, length 3-20 mcm, acicular or planiform shape, blue or yellow color depending on position in compensated polarized light. Quantitative distribution of the crystals within one biopsy specimen was uneven and varied from solitary crystals to clusters of 70-80 crystals in sight, up to formation of tophus-like structures. Clinical picture in detection of SMC was characterized by more frequent occurrence of cases with subcutaneous tophuses of various location combined with higher hyperuricemia.
Conclusion: One of the essential lines in the research of gout concerns mechanisms of SMC formation in organs and tissues and microcrystalline gastroduodenal inflammation. Methods of correction of this inflammation are to be designed.
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G Ital Nefrol
February 2022
Division of Heart Surgery, Department of translational Medical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy.
Gout is a common, complex, systemic and well-studied form of chronic inflammatory arthritis in adults. It is due to the deposition of sodium monourate crystals in peripheral joints and periarticular tissues driven by hyperuricemia. Gout is the oldest recorded inflammatory arthritis to affect humankind, with roots stretching back to 2460 BC.
View Article and Find Full Text PDFAnalyst
September 2018
Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt.
The present study was designed to evaluate the potential protective effects of the cysteinyl leukotriene receptor blocker montelukast (MNK) and the xanthine oxidase inhibitor febuxostat (FBX) and their combination on a model of acute gouty arthritis induced by intraarticular injection of monourate sodium crystal (MUC) injection in rats. Additionally, we established an HPTLC method for the quantitative determination of both drugs simultaneously and applied this method to detect this combination in rat plasma. In this study, the treated male Wistar rats were grouped as follows: a negative control group injected with phosphate buffer saline (PBS) and a positive control group injected with MUC in their tibiotarsal joint.
View Article and Find Full Text PDFActa Reumatol Port
February 2014
Serviço de Reumatologia, Hospitais da Universidade de Coimbra, Portugal.
The authors describe a 54 year-old male patient, admitted after presenting in the emergency room with acute oligoarthritis affecting the shoulders and right tibiotarsal and sternoclavicular joints, with a week's duration. He was non-febrile and related a purulent discharge from the stump of a traumatic amputation of the left thumb, starting a few days prior to the presenting complaints. There was a previous history of gouty arthritis and moderate alcoholism.
View Article and Find Full Text PDFReumatismo
January 2012
Apheresis Unit, Blood Transfusion Service, University Hospital of Padova, Italy.
The history of microcrystalline arthritis only began in 1961 when Daniel McCarty and Joseph Lee Hollander demonstrated the presence of sodium monourate crystals in the synovial fluid of gouty patients. However, gout is a historical disease, thanks to the descriptions of Hippocrates, Caelius Aurelianus, Soranus of Ephesus and Araeteus of Cappadocia. The relationship between hyperuricemia and gout was first documented in the nineteenth century by Alfred Baring Garrod, who demonstrated deposits of uric acid crystals on a linen thread held dipped in acidified blood (the so-called "thread method").
View Article and Find Full Text PDFInvest Clin
March 2011
Unit of Investigation in Immunology (UNIVENIN), Department of Physiological Sciences, Faculty of Health Sciences, University of Carabobo, Bárbula.
Non-steroidal anti-inflammatory drugs (NSAIDS) are the first line of therapy in acute gouty arthritis. NSAIDs inhibit the cyclooxygenase pathway, but not the lipooxygenase activity and can have many adverse effects and thus have a limited effect on the control of inflammation in this disease. In this work we studied the effect of montelukast on the cellular inflammatory infiltrate in a model of murine arthritis induced by sodium monourate crystals (SMU), using a subcutaneous air cavity (air pouch) in BALB/c mice.
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