{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T13:35:26Z","timestamp":1787060126922,"version":"build-2736575974"},"reference-count":26,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2012,12,21]],"date-time":"2012-12-21T00:00:00Z","timestamp":1356048000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int Forum Allergy Rhinol"],"published-print":{"date-parts":[[2013,5]]},"abstract":"\n Background<\/jats:title>\n \n The airway epithelium generates reactive oxygen species (ROS) as a first line of defense. Dual oxidases (DUOX1 and DUOX2) are the H\n 2<\/jats:sub>\n O\n 2<\/jats:sub>\n \u2010producing isoforms of the nicotinamide adenine dinucleotide phosphate (NADPH) oxidase family in the airway epithelium. The purpose of this study was to explore the molecular expression, function, and regulation of DUOXs in chronic rhinosinusitis (CRS).\n <\/jats:p>\n <\/jats:sec>\n \n Methods<\/jats:title>\n \n Human nasal tissue samples and nasal secretions were collected from 3 groups of patients undergoing sinus surgery (normal, n = 7; CRS with polyposis [CRSwP], n\u00a0=\u00a06; CRS without polyposis [CRSsP], n = 6). Nasal secretions were studied for cytokine and H\n 2<\/jats:sub>\n O\n 2<\/jats:sub>\n content. Tissue samples were used to determine DUOX mRNA and protein expression.\n <\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n \n DUOX1 mRNA level (80.7 \u00b1 60.5) was significantly increased in CRSwP compared to normal (2.7 \u00b1 1.2) and CRSsP (2.3 \u00b1 0.5,\n p<\/jats:italic>\n = 0.042). DUOX2 mRNA levels were increased in both CRSwP (18.6 \u00b1 9.9) and CRSsP (4.0 \u00b1 1.3) compared to normal (1.1 \u00b1 0.3;\n p<\/jats:italic>\n = 0.008). DUOX protein was found in the apical portion of the nasal epithelium and protein expression was increased in CRSwP and CRSsP. H\n 2<\/jats:sub>\n O\n 2<\/jats:sub>\n production was significantly higher in CRSwP (160.9 \u00b1 59.4 nM) and CRSsP (81.7 \u00b1 5.6 nM) compared to normal (53.5 \u00b1 11.5 nM,\n p<\/jats:italic>\n = 0.032). H\n 2<\/jats:sub>\n O\n 2<\/jats:sub>\n content of nasal secretions correlated tightly with DUOX expression (\n p<\/jats:italic>\n < 0.001). Cytokines (eotaxin, monokine\u2010induced by interferon \u03b3 [MIG], tumor necrosis factor [TNF]\u2010\u03b1, interleukin [IL]\u20108) showed significantly higher levels in nasal secretions from CRSwP compared to normal (\n p<\/jats:italic>\n < 0.05). Levels of eotaxin, MIG, and TNF\u2010\u03b1 correlated closely with DUOX expression.\n <\/jats:p>\n <\/jats:sec>\n \n Conclusion<\/jats:title>\n \n DUOX1 and DUOX2 were identified as factors upregulated in CRS. Close correlations between DUOX expression and H\n 2<\/jats:sub>\n O\n 2<\/jats:sub>\n release, and correlation between key inflammatory cytokines and DUOX expression, indicate DUOX in the inflammatory response in CRS.\n <\/jats:p>\n <\/jats:sec>","DOI":"10.1002\/alr.21133","type":"journal-article","created":{"date-parts":[[2012,12,22]],"date-time":"2012-12-22T01:04:47Z","timestamp":1356138287000},"page":"376-383","source":"Crossref","is-referenced-by-count":45,"title":["Expression of dual oxidases and secreted cytokines in chronic rhinosinusitis"],"prefix":"10.1002","volume":"3","author":[{"given":"Do\u2010Yeon","family":"Cho","sequence":"first","affiliation":[{"name":"Division of Rhinology, Department of Otolaryngology\u2013Head and Neck Surgery Stanford University School of Medicine Stanford CA"},{"name":"Children's Hospital Oakland Research Institute Oakland CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jayakar V.","family":"Nayak","sequence":"additional","affiliation":[{"name":"Division of Rhinology, Department of Otolaryngology\u2013Head and Neck Surgery Stanford University School of Medicine Stanford CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dawn T.","family":"Bravo","sequence":"additional","affiliation":[{"name":"Division of Rhinology, Department of Otolaryngology\u2013Head and Neck Surgery Stanford University School of Medicine Stanford CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Le","sequence":"additional","affiliation":[{"name":"Division of Rhinology, Department of Otolaryngology\u2013Head and Neck Surgery Stanford University School of Medicine Stanford CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alan","family":"Nguyen","sequence":"additional","affiliation":[{"name":"Division of Rhinology, Department of Otolaryngology\u2013Head and Neck Surgery Stanford University School of Medicine Stanford CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Justin A.","family":"Edward","sequence":"additional","affiliation":[{"name":"Division of Rhinology, Department of Otolaryngology\u2013Head and Neck Surgery Stanford University School of Medicine Stanford CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter H.","family":"Hwang","sequence":"additional","affiliation":[{"name":"Division of Rhinology, Department of Otolaryngology\u2013Head and Neck Surgery Stanford University School of Medicine Stanford CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Beate","family":"Illek","sequence":"additional","affiliation":[{"name":"Children's Hospital Oakland Research Institute Oakland CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Horst","family":"Fischer","sequence":"additional","affiliation":[{"name":"Children's Hospital Oakland Research Institute Oakland 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