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Journal Article
Meta-Analysis
Prognostic value of cyclin E expression in patients with ovarian cancer: a Meta-analysis.
PURPOSE: Cell cycle is mainly mediated by cyclins, cyclin- dependent kinases (CDK), and CDK inhibitors. Cyclin E is the main regulator for transition from G1 to S phase, and is involved in cancer pathogenesis, progression and metastasis. Nevertheless, there is still a controversy of the prognostic value of cyclin E overexpression in ovarian cancer patients. This meta-analysis is the first study aimed at analyzing the effect of cyclin E overexpression on the prognosis of ovarian cancer.
METHODS: By systematically searching the PUBMED, EMBASE and MEDLINE databases for relevant articles with publication dates up to January 2016 and selection following inclusion and exclusion criteria, 8 studies with 1470 patients were enrolled in our meta-analysis. The overall survival (OS) of patients with cyclin E overexpression was calculated using hazard ratio (HR) with 95% confidence intervals (CIs). The studies were categorized according to the author and year, demographic data in each study, ovarian cancer related information, and cyclin E cut-off value.
RESULTS: Cyclin E overexpression in ovarian cancer was a poor prognostic factor with statistical significance for OS (HR=1.48, 95%CI: 1.12,1.85). Using confunnel, we found no publication bias in our analysis.
CONCLUSION: Cyclin E might be considered as a prognostic factor for ovarian cancer, as supported by our meta-analysis. However, more high-quality studies should be conducted to find better clinical use of cyclin E in ovarian cancer.
METHODS: By systematically searching the PUBMED, EMBASE and MEDLINE databases for relevant articles with publication dates up to January 2016 and selection following inclusion and exclusion criteria, 8 studies with 1470 patients were enrolled in our meta-analysis. The overall survival (OS) of patients with cyclin E overexpression was calculated using hazard ratio (HR) with 95% confidence intervals (CIs). The studies were categorized according to the author and year, demographic data in each study, ovarian cancer related information, and cyclin E cut-off value.
RESULTS: Cyclin E overexpression in ovarian cancer was a poor prognostic factor with statistical significance for OS (HR=1.48, 95%CI: 1.12,1.85). Using confunnel, we found no publication bias in our analysis.
CONCLUSION: Cyclin E might be considered as a prognostic factor for ovarian cancer, as supported by our meta-analysis. However, more high-quality studies should be conducted to find better clinical use of cyclin E in ovarian cancer.
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