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Nutrients 2017, 9(4), 394; doi:10.3390/nu9040394

Serum Insulin-Like Growth Factor Axis and the Risk of Pancreatic Cancer: Systematic Review and Meta-Analysis

1
Department of Hepatobiliary Surgery, The Affiliated Cancer Hospital& Institute of Guangzhou Medical University, Guangzhou 510095, China
2
Department of Ultrasound, the First People’s Hospital of Yichang, China Three Gorges University, Yichang 443000, China
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 29 December 2016 / Revised: 2 March 2017 / Accepted: 12 April 2017 / Published: 18 April 2017
(This article belongs to the Special Issue Nutrients, Infectious and Inflammatory Diseases)
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Abstract

Objective: To investigate the association between serum concentration of insulin-like growth factor (IGF) and the risk of pancreatic cancer (PaC). Methods: We identified eligible studies in Medline and EMBASE databases (no reference trials from 2014 to 2016) in addition to the reference lists of original studies and review articles on this topic. A summary of relative risks with 95% confidence intervals (CI) was calculated using a random-effects model. The heterogeneity between studies was assessed using Cochran Q and I2 statistics. Results: Ten studies (seven nested case-control studies and three retrospective case-control studies) were selected as they met our inclusion criteria in this meta-analysis. All these studies were published between 1997 and 2013. The current data suggested that serum concentrations of IGF-I, IGF-II and insulin-like growth factor binding protein-3 (IGFBP-3)in addition to the IGF-I/IGFBP-3 ratio were not associated with an increased risk of PaC (Summary relative risks (SRRs) = 0.92, 95% CI: 0.67–1.16 for IGF-I; SRRs = 0.84, 95% CI: 0.54–1.15 for IGF-II; SRRs = 0.93, 95% CI: 0.69–1.17 for IGFBP-3; SRRs = 0.97, 95% CI: 0.71–1.23 for IGF-I/IGFBP-3 ratio). There was no publication bias in the present meta-analysis. Conclusion: Serum concentrations of IGF-I, IGF-II, IGFBP-1 and IGFBP-3 as well as the IGF-I/IGFBP-3 ratio were not associated with increased risk of PaC. View Full-Text
Keywords: insulin-like growth factor; insulin-like growth factor binding protein; pancreatic cancer; morbidity; meta-analysis insulin-like growth factor; insulin-like growth factor binding protein; pancreatic cancer; morbidity; meta-analysis
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Gong, Y.; Zhang, B.; Liao, Y.; Tang, Y.; Mai, C.; Chen, T.; Tang, H. Serum Insulin-Like Growth Factor Axis and the Risk of Pancreatic Cancer: Systematic Review and Meta-Analysis. Nutrients 2017, 9, 394.

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