{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T08:04:35Z","timestamp":1790841875141,"version":"4.1.0"},"reference-count":52,"publisher":"Oxford University Press (OUP)","issue":"2","license":[{"start":{"date-parts":[[2006,12,20]],"date-time":"2006-12-20T00:00:00Z","timestamp":1166572800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2007,1,5]]},"abstract":"<jats:title>Summary<\/jats:title>\n                  <jats:p>Some evidence exists that peripheral neutrophils from patients with chronic periodontitis generate higher levels of reactive oxygen species (ROS) after Fc\u03b3-receptor stimulation than those from healthy controls. We hypothesized that peripheral neutrophils in periodontitis also show both hyper-reactivity to plaque organisms and hyperactivity in terms of baseline, unstimulated generation and release of ROS. Peripheral neutrophils from chronic periodontitis patients and age\/sex\/smoking-matched healthy controls (18 pairs) were assayed for total ROS generation and extracellular ROS release, with and without stimulation (Fc\u03b3-receptor and Fusobacterium nucleatum), using luminol and isoluminol chemiluminescence. Assays were performed with and without priming with Escherichia coli lipopolysaccharide (LPS) and granulocyte\u2013macrophage colony-stimulating factor (GM-CSF). Phox gene expression (p22, p47, p67, gp91) was investigated using reverse transcription\u2013polymerase chain reaction (RT\u2013PCR). Neutrophils from patients produced higher mean levels of ROS in all assays. Total generation and extracellular release of ROS by patients' cells were significantly greater than those from controls after Fc\u03b3R-stimulation, with (P\u2003=\u20030\u00b7023) and without (P\u2003\u2264\u20030\u00b7023) priming with GM-CSF. Differences in unstimulated total ROS generation were not significant. By contrast, patients' cells demonstrated greater baseline, extracellular ROS release than those from controls (P\u2003=\u20030\u00b7004). This difference was maintained after priming with LPS (P\u2003=\u20030\u00b7028) but not GM-CSF (P\u2003=\u20030\u00b7217). Phox gene expression was similar in patient and control cells at baseline and stimulation with F. nucleatum (3\u2003h) consistently reduced gp91PHOX transcripts. Our data demonstrate that peripheral neutrophils from periodontitis patients exhibit hyper-reactivity following stimulation (Fc\u03b3-receptor and F. nucleatum) and hyperactivity in terms of excess ROS release in the absence of exogenous stimulation. This hyperactive\/-reactive neutrophil phenotype is not associated with elevated phox gene expression.<\/jats:p>","DOI":"10.1111\/j.1365-2249.2006.03276.x","type":"journal-article","created":{"date-parts":[[2010,8,12]],"date-time":"2010-08-12T10:25:49Z","timestamp":1281608749000},"page":"255-264","source":"Crossref","is-referenced-by-count":183,"title":["Hyperactivity and reactivity of peripheral blood neutrophils in chronic periodontitis"],"prefix":"10.1093","volume":"147","author":[{"given":"J B","family":"Matthews","sequence":"first","affiliation":[{"name":"Periodontal Research Group, School of Dentistry, University of Birmingham, Birmingham, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H J","family":"Wright","sequence":"additional","affiliation":[{"name":"Periodontal Research Group, School of Dentistry, University of Birmingham, Birmingham, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A","family":"Roberts","sequence":"additional","affiliation":[{"name":"Periodontal Research Group, School of Dentistry, University of Birmingham, Birmingham, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P R","family":"Cooper","sequence":"additional","affiliation":[{"name":"Periodontal Research Group, School of Dentistry, University of Birmingham, Birmingham, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"I L C","family":"Chapple","sequence":"additional","affiliation":[{"name":"Periodontal Research Group, School of Dentistry, University of Birmingham, Birmingham, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2006,12,20]]},"reference":[{"key":"2022010415134398300_b1","doi-asserted-by":"crossref","first-page":"523","DOI":"10.1111\/j.1432-1033.1991.tb16312.x","article-title":"The superoxide-generating oxidase of phagocytic cells. 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