{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,27]],"date-time":"2025-11-27T06:34:22Z","timestamp":1764225262283},"reference-count":44,"publisher":"Wiley","issue":"9-10","license":[{"start":{"date-parts":[[2015,5,8]],"date-time":"2015-05-08T00:00:00Z","timestamp":1431043200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"QOPNA research unit","award":["PEst-C\/QUI\/UI0062\/2013"],"award-info":[{"award-number":["PEst-C\/QUI\/UI0062\/2013"]}]},{"name":"RNEM","award":["EXPL\/BBB-BEP\/0317\/2012"],"award-info":[{"award-number":["EXPL\/BBB-BEP\/0317\/2012"]}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Proteomics Clinical Apps"],"published-print":{"date-parts":[[2015,10]]},"abstract":"<jats:sec><jats:title>Purpose<\/jats:title><jats:p>Chronic periodontitis (CP) is a complex immuno\u2010inflammatory disease that results from preestablished gingivitis. We investigated potential differences in salivary peptidome in health and CP.<\/jats:p><\/jats:sec><jats:sec><jats:title>Experimental design<\/jats:title><jats:p>Saliva was collected from nine CP patients and ten healthy subjects, from which five CP and five healthy were enriched following endoProteoFASP approach, separated and identified by nanoHPLC\u2010MALDI\u2010TOF\/TOF. Protease prediction was carried out in silico with Proteasix. Parallel gelatin and collagen (I) zymographies were performed to study proteolytic activity in CP.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>An association of CP with increased gelatinolytic and collagenolytic activity was observed, which is mainly attributed to metalloproteases, remarkably MMP9. Protease prediction revealed distinct protease profiles in CP and in health. Peptidomic data corroborated the inflammatory status, and demonstrated that intact histatin 1 may play an important role in the defense response against oral pathogens. The application of the endoProteoFASP approach to study the salivary peptidome of CP subjects resulted in the identification of eight surrogate peptide markers, which may be used in multiplex to identify CP. These peptides belong to acidic PRP and to P\u2010B peptide. Particularly, P\u2010B peptide fragments exhibited domains with potential predicted antimicrobial activity, corroborating an antimicrobial function.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions and clinical relevance<\/jats:title><jats:p>The comparison between the salivary peptidome obtained by control and CP samples showed a specific association of eight peptides to CP, with remarkable predicted antimicrobial activity, which should be further validated in studies with large number of subjects.<\/jats:p><\/jats:sec>","DOI":"10.1002\/prca.201400191","type":"journal-article","created":{"date-parts":[[2015,2,9]],"date-time":"2015-02-09T03:39:30Z","timestamp":1423453170000},"page":"917-927","update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":24,"title":["Toward the definition of a peptidome signature and protease profile in chronic periodontitis"],"prefix":"10.1002","volume":"9","author":[{"given":"F\u00e1bio","family":"Trindade","sequence":"first","affiliation":[{"name":"QOPNA Mass spectrometry center Department of Chemistry University of Aveiro  Aveiro Portugal"}]},{"given":"Francisco","family":"Amado","sequence":"additional","affiliation":[{"name":"QOPNA Mass spectrometry center Department of Chemistry University of Aveiro  Aveiro Portugal"}]},{"given":"Rui P.","family":"Oliveira\u2010Silva","sequence":"additional","affiliation":[{"name":"QOPNA Mass spectrometry center Department of Chemistry University of Aveiro  Aveiro Portugal"},{"name":"CICECO Department of Chemistry Aveiro Institute of Nanotechnology University of Aveiro  Aveiro Portugal"}]},{"given":"Ana L.","family":"Daniel\u2010da\u2010Silva","sequence":"additional","affiliation":[{"name":"CICECO Department of Chemistry Aveiro Institute of Nanotechnology University of Aveiro  Aveiro Portugal"}]},{"given":"Rita","family":"Ferreira","sequence":"additional","affiliation":[{"name":"QOPNA Mass spectrometry center Department of Chemistry University of Aveiro  Aveiro Portugal"}]},{"given":"Julie","family":"Klein","sequence":"additional","affiliation":[{"name":"Mosaiques\u2010Diagnostics GmbH  Hannover Germany"}]},{"given":"Ricardo","family":"Faria\u2010Almeida","sequence":"additional","affiliation":[{"name":"Faculty of Dental Medicine University of Porto  Porto Portugal"}]},{"given":"Pedro S.","family":"Gomes","sequence":"additional","affiliation":[{"name":"Laboratory for Bone Metabolism and Regeneration\u2013Faculty of Dental Medicine University of Porto  Porto Portugal"},{"name":"MedInUP\u2014Center for Drug Discovery and Innovative Medicines University of Porto  Porto Portugal"}]},{"given":"Rui","family":"Vitorino","sequence":"additional","affiliation":[{"name":"QOPNA Mass spectrometry center Department of Chemistry University of Aveiro  Aveiro Portugal"},{"name":"iBiMED Institute for Research in Biomedicine University of Aveiro  Portugal"}]}],"member":"311","published-online":{"date-parts":[[2015,5,8]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600-0757.2001.22250102.x"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.2008.080213"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/prd.12011"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0757.1997.tb00189.x"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1155\/2013\/503754"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0757.2009.00307.x"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.bbadis.2013.01.003"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2249.2006.03156.x"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1042\/BJ20081469"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1902\/annals.1999.4.1.1"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.0906-6713.2002.003421.x"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.4103\/0976-237X.96815"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.humimm.2013.08.009"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.5051\/jpis.2012.42.5.151"},{"key":"e_1_2_8_16_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1601-0825.2011.01872.x"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0765.2010.01327.x"},{"key":"e_1_2_8_18_1","first-page":"3042","article-title":"Endothelial nitric oxide synthase gene polymorphisms associated with periodontal diseases in Turkish adults","volume":"9","author":"Erciyas K.","year":"2010","journal-title":"African J. 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