Genetic variants of calcium sensing receptor gene and risk of colorectal cancer: A case-control study

Author:

Al-Ghafari Ayat Badr

Abstract

Objectives: To determine the role of two genetic variants, (rs3804594) and (rs1801725), in calcium sensing receptor (CASR) gene with colorectal cancer (CRC) risk in patients visited King Abdulaziz University hospital (KAUH) in Jeddah, Saudi Arabia. Methods: Genomic DNA was extracted, by commercial DNA extraction kit, from whole blood of 100 CRC patients and 124 controls who visited KAUH from January 2016 to September 2016. Then genotype and allele distributions of both variants were determined by PCR-RFLP and DNA sequencing techniques. All statistical analyses were performed by unpaired t-test and P-values <0.05 were considered statistically significant. Results: Data obtained from χ2 test showed that intron 4 variant in CASR gene was distributed 100% normally in the 224 participants, however, exon 7 variant showed 100% homozygous distribution in the controls; whereas, in CRC patients it was distributed equally into 50% heterozygous and 50% homozygous with no detection for wild type. Conclusion: Intron 4 variant (rs3804594) in CASR gene is not correlated to CRC risk. However, more investigations are needed to elucidate the role of CASR gene exon 7 (rs1801725) variant in CRC development as the current results are not definitive. How to cite this:Al-Ghafari AB. Genetic variants of calcium sensing receptor gene and risk of colorectal cancer: A case-control study . Pak J Med Sci. 2019;35(2):448-453. doi: https://doi.org/10.12669/pjms.35.2.38 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Publisher

Pakistan Journal of Medical Sciences

Subject

General Medicine

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