title: Relationship between serum uric acid and metastatic and nonmetastatic rectal cancer patients with undergoing no chemotherapy.
abstract: The aim of this study was to investigate the role of uric acid (UA) in assessing rectal cancer metastasis.There were 475 newly diagnosed patients with complete data in our study, a total of 475 cases were reviewed, and divided into patients with metastasis and without metastasis.There were several statistical differences in age, tumor diameter, carcino-embryonic antigen (CEA), and C-reactive protein (CRP) between the 2 groups. Importantly, serum concentrations of UA in patients with lymphatic metastasis were found to be increased compared with patients without lymphatic metastasis (270.9 ± 52.99 vs 215.8 ± 43.55; P < 0.001). There were positive correlations of serum UA with creatinine (Cr), CRP, and CEA (r = 0.281, P = 0.023; r = 0.312, P = 0.001; r = 0.294, P = 0.017) in rectal cancer patients with metastasis. Multivariate analysis model revealed that elevated serum levels of UA were significant prognostic marker for lymphatic metastasis in patients with rectal cancer, independently of CRP, CEA, and tumor diameter (odds ratio 1.035, 95% CI 1.013-1.057, P = 0.002). In receiver-operating characteristic curve analysis, the area under the curve of serum UA in assessing metastatic rectal cancer patients was 0.803, with sensitivity of 0.864 and specificity of 0.739.Our results suggest that serum UA may be a novel marker in assessing tumor metastasis in patients with rectal cancer.
authors.affiliation: The First College of Clinical Medical Science Department of Oncology, China Three Gorges University and Yichang Central People's Hospital, Yichang, Hubei, China Klinikum rechts der Isar Technical University of Munich, München, Germany.
authors.forename: Cheng
authors.initials: C
authors.lastname: Yuan
authors.forename: Xin-Hua
authors.initials: XH
authors.lastname: Xu
authors.forename: Xiao-Long
authors.initials: XL
authors.lastname: Wang
authors.forename: Lu
authors.initials: L
authors.lastname: Xu
authors.forename: Zhuo
authors.initials: Z
authors.lastname: Chen
authors.forename: Yuan-Qiang
authors.initials: YQ
authors.lastname: Li
mesh_terms: D014408:Biomarkers, Tumor / Q000097:blood; D002097:C-Reactive Protein / Q000378:metabolism; D002272:Carcinoembryonic Antigen / Q000097:blood; D002681:China; D003404:Creatinine / Q000097:blood; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis / Q000473:pathology*; D012004:Rectal Neoplasms / Q000097:blood* / Q000473:pathology*; D012189:Retrospective Studies; D014527:Uric Acid / Q000097:blood*
chemical_list: D014408:Biomarkers, Tumor; D002272:Carcinoembryonic Antigen; D014527:Uric Acid; D002097:C-Reactive Protein; D003404:Creatinine