Association of metformin intake with bladder cancer risk and oncologic outcomes in type 2 diabetes mellitus patients: A systematic review and meta-analysis.
Association of metformin intake with bladder cancer risk and oncologic outcomes in type 2 diabetes mellitus patients: A systematic review and meta-analysis.
复制标题
二甲双胍摄入量与 2 型糖尿病患者膀胱癌风险和肿瘤结果的关联:系统评价和荟萃分析
DOI:
10.1097/md.0000000000011596
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发表时间:
2018-07
期刊:
影响因子:
1.6
通讯作者:
Zu XB
中科院分区:
文献类型:
--
作者:
Hu J;Chen JB;Cui Y;Zhu YW;Ren WB;Zhou X;Liu LF;Chen HQ;Zu XB
Supplemental Digital Content is available in the text Recent clinical trials indicated that metformin intake might play a protective role in the incidence and oncologic outcomes of various cancers. However, its protective effect on bladder cancer remains uncertain. We performed a meta-analysis to investigate the association between metformin intake and bladder cancer risk as well as oncologic outcomes in diabetes mellitus (DM) patients. A comprehensive literature search was performed using PubMed, Embase, and the Cochrane Central Search Library in December 2017. Hazard ratio (HR) with 95% confidence interval (CI) was pooled. A total of 9 retrospective cohort studies with 1,270,179 patients were included. A meta-analysis revealed that metformin intake was associated with an increased recurrence-free survival (HR = 0.55, 95% confidence interval [CI] = 0.35–0.88; P = .01; I2 = 64%), improved progression-free survival (HR = 0.70, 95% CI = 0.51–0.96; P = .03; I2 = 33%), and prolonged cancer-specific survival (HR = 0.57, 95% CI = 0.40–0.81; P = .002; I2 = 0%). However, results demonstrated that metformin intake was not associated with a decreased incidence of bladder cancer (HR = 0.82, 95% CI = 0.61–1.09; P = .17; I2 = 85%) or an increased overall survival in bladder cancer patients (HR = 0.83, 95% CI = 0.47–1.44; P = .50; I2 = 64%). The present meta-analysis indicated that metformin intake could improve the prognosis of bladder cancer patients. Further prospective cohort studies and mechanistic studies are still required to determine the precise role of metformin in the initiation and progression of bladder cancer.