{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T06:59:25Z","timestamp":1785394765312,"version":"3.55.0"},"reference-count":33,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2024,11,3]],"date-time":"2024-11-03T00:00:00Z","timestamp":1730592000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J Hepato Biliary Pancreat"],"published-print":{"date-parts":[[2024,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Creatine kinase (CK) levels decrease with cancer progression and muscle wasting, but its association with pancreatic ductal adenocarcinoma (PDAC) remains unclear. The aim of this study was to investigate CK as a prognostic biomarker and surrogate marker for muscle mass in patients with PDAC.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A retrospective analysis of 476 patients with PDAC was conducted. CK levels were categorized into low and high groups using receiver\u2010operating characteristic (ROC) curve analysis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Among the 476 patients, 200 (42.0%) and 276 (58.0%) were classified into the low and high CK groups, respectively. The low CK group had significantly poorer overall survival (<jats:italic>p<\/jats:italic>\u2009&lt;\u2009.001) and recurrence\u2010free survival (<jats:italic>p<\/jats:italic>\u2009&lt;\u2009.001) compared to the high CK group. Multivariate analysis identified low CK as an independent poor prognostic factor (<jats:italic>p<\/jats:italic>\u2009&lt;\u2009.001). The low CK group had significantly lower skeletal muscle index (<jats:italic>p<\/jats:italic>\u2009=\u2009.048) than the high CK group; however, the difference was slight and not significantly associated with sarcopenia. Additionally, combined risk assessment incorporating CK and resectability facilitated a more nuanced prognostic stratification.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>CK served as a reliable prognostic marker independent from resectability but was less effective as a marker for sarcopenia in PDAC.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jhbp.12081","type":"journal-article","created":{"date-parts":[[2024,11,4]],"date-time":"2024-11-04T02:34:35Z","timestamp":1730687675000},"page":"906-916","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Prognostic significance of creatine kinase in resected pancreatic cancer"],"prefix":"10.1002","volume":"31","author":[{"given":"Yuichiro","family":"Kohara","sequence":"first","affiliation":[{"name":"Department of Surgery Nara Medical University  Nara Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4323-7422","authenticated-orcid":false,"given":"Satoshi","family":"Yasuda","sequence":"additional","affiliation":[{"name":"Department of Surgery Nara Medical University  Nara Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2102-1276","authenticated-orcid":false,"given":"Minako","family":"Nagai","sequence":"additional","affiliation":[{"name":"Department of Surgery Nara Medical University  Nara Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kota","family":"Nakamura","sequence":"additional","affiliation":[{"name":"Department of Surgery Nara Medical University  Nara Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasuko","family":"Matsuo","sequence":"additional","affiliation":[{"name":"Department of Surgery Nara Medical University  Nara Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2161-9158","authenticated-orcid":false,"given":"Taichi","family":"Terai","sequence":"additional","affiliation":[{"name":"Department of Surgery Nara Medical University  Nara Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shunsuke","family":"Doi","sequence":"additional","affiliation":[{"name":"Department of Surgery Nara Medical University  Nara Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takeshi","family":"Sakata","sequence":"additional","affiliation":[{"name":"Department of Surgery Nara Medical University  Nara Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6208-7661","authenticated-orcid":false,"given":"Masayuki","family":"Sho","sequence":"additional","affiliation":[{"name":"Department of Surgery Nara Medical University  Nara Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,11,3]]},"reference":[{"key":"e_1_2_7_2_1","unstructured":"National Cancer Institute.Bethesda. 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