{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T01:47:05Z","timestamp":1790128025637,"version":"4.0.1"},"reference-count":28,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2025,2,5]],"date-time":"2025-02-05T00:00:00Z","timestamp":1738713600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Intl J Gynecology &amp; Obste"],"published-print":{"date-parts":[[2025,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>Endometriosis is a chronic disease which has been reported to be associated with distorted immune mechanisms. The alternative pathway is a complement system which plays a role in immune defense. The present study aimed to evaluate whether the level of alternative complement molecules differ in women with endometriosis compared to heathy individuals.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A total of 58 women participated in this prospective research. Women with a diagnosis of endometriosis confirmed by laparoscopy (<jats:italic>n<\/jats:italic>\u2009=\u200932) were compared to healthy women (<jats:italic>n<\/jats:italic>\u2009=\u200926) in terms of serum adipsin, properdin, mannose\u2010binding lectin\u2010associated serine protease\u20103 and complement factor\u2010H (CFH) levels. The peritoneal fluid samples which were taken during the endometriosis surgery were also analyzed in terms of the complement levels. The clinical and demographic data including the serum CA\u2010125 level and pelvic pain were also analyzed. SPSS version 23.0 was used in statistical analysis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The serum levels of adipsin and CFH were found to be significantly increased in women with endometriosis (<jats:italic>P<\/jats:italic>\u2009=\u20090.027 and <jats:italic>P<\/jats:italic>\u2009=\u20090.040, respectively). Serum adipsin level was found to significantly correlate with serum CA\u2010125 level (<jats:italic>r<\/jats:italic>\u2009=\u20090.320, <jats:italic>P<\/jats:italic>\u2009=\u20090.015), serum CFH level (<jats:italic>r<\/jats:italic>\u2009=\u20090.705, <jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001), and degree of the pelvic pain complaint (<jats:italic>r<\/jats:italic>\u2009=\u20090.326, <jats:italic>P<\/jats:italic>\u2009=\u20090.013). A strong, positive correlation was also observed between peritoneal fluid levels of adipsin, and CFH (<jats:italic>r<\/jats:italic>\u2009=\u20090.593; <jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>To the best of our knowledge, the present study is the first to evaluate the alternative complement system in women with endometriosis. The current findings may be noteworthy to elucidate the possible role of the key molecules of the alternative pathway in endometriosis pathogenesis.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ijgo.16195","type":"journal-article","created":{"date-parts":[[2025,2,5]],"date-time":"2025-02-05T12:11:05Z","timestamp":1738757465000},"page":"174-181","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Evaluation of serum and peritoneal fluid mannose\u2010binding lectin associated serine protease\u20103, adipsin, properdin, and complement factor\u2010H levels in endometriosis patients"],"prefix":"10.1002","volume":"170","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4411-1672","authenticated-orcid":false,"given":"Merve Didem","family":"E\u015fkin Tanr\u0131verdi","sequence":"first","affiliation":[{"name":"Department of Gynecology and Obstetrics Ankara Bilkent City Hospital  Ankara 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