{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,11,30]],"date-time":"2023-11-30T08:32:30Z","timestamp":1701333150021},"reference-count":60,"publisher":"Walter de Gruyter GmbH","issue":"9","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2015,1,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The aim of the study was to describe automated immunoassays for autoantibodies to homocitrulline or citrulline containing telopeptides of type I and II collagen in various disease categories in an early arthritis series.<\/jats:p><jats:p>Serum samples were collected from 142 patients over 16 years of age with newly diagnosed inflammatory joint disease. All samples were analyzed with an automated inhibition chemiluminescence immunoassay (CLIA) using four different peptide pairs, each consisting of a biotinylated antigen and an inhibiting peptide. Assays were performed with an IDS-iSYS analyzer. Autoantibodies binding to homocitrulline and citrulline containing C-telopeptides of type I (HTELO-I, TELO-I) and type II collagens (HTELO-II, TELO-II) were analyzed.<\/jats:p><jats:p>The mean ratio of HTELO-I inhibition in seropositive and seronegative rheumatoid arthritis (RA) was 3.07 (95% CI 1.41\u201311.60), p=0.003, and in seropositive and seronegative undifferentiated arthritis (UA) 4.90 (1.85\u201314.49), p&lt;0.001. The respective mean ratios in seropositive and seronegative RA and UA were in TELO-I 8.72 (3.68\u201358.01), p&lt;0.001 and 3.13 (1.49\u20136.16), p=0.008, in HTELO-II 7.57 (3.18\u201356.60), p&lt;0.001 and 2.97 (1.23\u20136.69), p=0.037, and in TELO-II 3.01 (1.30\u20139.51), p=0.002 and 3.64 (1.86\u20137.65), p=0.008. In reactive arthritis, ankylosing spondylitis, psoriatic arthritis and unspecified spondyloarthritis the inhibition levels were similar to those observed in seronegative RA or UA.<\/jats:p><jats:p>Autoantibodies binding to homocitrulline or citrulline containing telopeptides of type I and II collagen did not differ significantly. They were highest among patients with seropositive disease and they differentiated seropositive and seronegative arthritis.<\/jats:p>","DOI":"10.1515\/cclm-2014-0683","type":"journal-article","created":{"date-parts":[[2014,11,11]],"date-time":"2014-11-11T17:01:54Z","timestamp":1415725314000},"source":"Crossref","is-referenced-by-count":3,"title":["Automated immunoassays for the autoantibodies to carbamylated or citrullinated telopeptides of type I and II collagens"],"prefix":"10.1515","volume":"53","author":[{"given":"Jere","family":"H\u00e4yrynen","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maija","family":"K\u00e4rkk\u00e4inen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aulikki","family":"Kononoff","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Leena","family":"Arstila","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pia","family":"Elfving","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Helena","family":"Niinisalo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elina","family":"Savolainen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hannu","family":"Kautiainen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juha","family":"Risteli","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Oili","family":"Kaipiainen-Sepp\u00e4nen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marja-Kaisa","family":"Koivula","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"374","reference":[{"key":"ref161","doi-asserted-by":"crossref","first-page":"3345","DOI":"10.1002\/art.27644","article-title":"Anticitrulline antibodies can be caused by homocitrulline - 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carbamylated protein anti CarP antibodies precede the onset of rheumatoid arthritis","author":"Shi","year":"2014","journal-title":"Ann Rheum Dis"},{"key":"ref01","doi-asserted-by":"crossref","first-page":"188","DOI":"10.3109\/03009747809095652","article-title":"von Essen Incidence of inflammatory rheumatic diseases in Finland","author":"Isom\u00e4ki","year":"1978","journal-title":"Scand J Rheumatol"},{"key":"ref301","first-page":"39","article-title":"factors in early rheumatoid arthritis","volume":"24","author":"Scott","year":"2000","journal-title":"Rheumatology"},{"key":"ref251","doi-asserted-by":"crossref","first-page":"485","DOI":"10.1002\/art.1780280503","article-title":"When does rheumatoid arthritis start","volume":"28","author":"Aho","year":"1985","journal-title":"Arthritis Rheum"},{"key":"ref361","doi-asserted-by":"crossref","first-page":"709","DOI":"10.1002\/art.20044","article-title":"van van de Autoantibodies to cyclic citrullinated peptides predict progression to rheumatoid arthritis in patients with undifferentiated arthritis prospective cohort study","volume":"15","author":"Gaalen","year":"2004","journal-title":"Arthritis Rheum"},{"key":"ref531","first-page":"108","article-title":"der Autoantibodies recognizing carbamylated proteins are present in sera of patients with rheumatoid arthritis and predict joint damage","author":"Shi","year":"2011","journal-title":"Proc Natl Acad Sci USA"},{"key":"ref71","first-page":"333","article-title":"Anti - 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