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Igf1 Ca-Repeat Polymorphism and Prostate Cancer Development in Isfahan Province of Iran



Bazafkan H1 ; Javadirad SM1 ; Tavasoli M1 ; Hemati S2
Authors
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Authors Affiliations
  1. 1. Department of Biology, Faculty of Sciences, University of Isfahan, Isfahan, Iran
  2. 2. Radiotherapy and Oncology Department, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran

Source: Journal of Kerman University of Medical Sciences Published:2018

Abstract

Background: Prostate cancer is increasing among Iranian men and gene polymorphisms may play a role in the development of prostate cancer. Insulin-like growth factor 1 (IGF1) gene polymorphisms have been deeply explored in different malignancies. In this study, we aimed to explore the association of IGF1 CA repeat length polymorphism with the risk of prostate cancer development in Isfahan province of Iran. Method: The total blood of 100 prostate cancer patients and the equivalent matched control individuals were collected. DNA extraction was followed by IGF1 promoter polymorphism amplification. Genotyping was performed using polyacrylamide gel electrophoresis and sequencing was performed. Results: According to the results, IGF1 promoter polymorphic site showed six different alleles ranging from 17-22 CA repeats among our studied population. Comparing SL heterozygotes with both homozygotes, a significant increase in RR value (RR=4.5, p=0.031) was observed. Although age adjustment and family history did not elevate the RR value, but a significantly elevated risk of prostate cancer (RR= 3.143, p=0.002) was shown when we compared SS patients with LL ones according to their BPH history. Conclusion: In conclusion, carriers of (CA)17 allele could be at a higher risk of prostate cancer development and being SL heterozygotes could increase the risk of BPH development in our studied population. © 2018, Kerman University of Medical Scienc. All rights reserved.
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