期刊
ONCOTARGET
卷 8, 期 70, 页码 115701-115708出版社
IMPACT JOURNALS LLC
DOI: 10.18632/oncotarget.22273
关键词
cervical cancer; serum gamma-glutamyltransferase; GGT; survival
This study was performed to evaluate the prognostic significance of the pretreatment serum gamma-glutamyltransferase (GGT) levels in a Chinese cohort of patients with early-stage or locally advanced cervical cancer. The pretreatment serum GGT levels were examined in 290 cervical cancer patients with stage I-III disease and 230 healthy controls selected from a cancer-free population in the same region. Patients were assigned to normal or high-risk GGT groups, as previously described, and the GGT levels were correlated to clinicopathologic parameters and survival data. The GGT levels in cervical cancer patients were significantly higher than those in healthy controls (35.6 +/- 29.1 vs. 24.1 +/- 14.7 U/L, P < 0.001). In addition, the pretreatment serum GGT levels were associated with the histology type (P = 0.023), lymph node involvement (P = 0.040), stage (P = 0.029), recurrence (P = 0.015) and death (P = 0.005), but not with age (P = 0.432), tumor size (P = 0.067) or degree of differentiation (P = 0.901). Moreover, univariate survival analysis revealed that patients with high GGT levels tended to have poorer disease-free survival (DFS) [hazard ratio (HR), 1.721; 95% confidence interval (CI), 1.189-2.491; P = 0.004] and overall survival (OS) (HR, 1.929; 95% CI, 1.294-2.876; P = 0.001) compared to those with normal GGT levels. However, a multivariate Cox-regression model did not support these data (HR, 1.373; 95% CI, 0.925-2.039; P = 0.116 for DFS and HR, 1.357; 95% CI, 0.887-2.078; P = 0.160 for OS, respectively) after adjusting for other confounding variables. High pretreatment serum GGT was associated with more advanced tumor behavior, but could not serve as an independent prognostic indicator in patients with early-stage or locally advanced cervical cancer.
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