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Relationship Between Serum Vitamin D and Calcium Levels and Vitamin D Receptor Gene Polymorphisms in Colorectal Cancer

Overview
Journal Biomed Res Int
Publisher Wiley
Date 2019 Sep 20
PMID 31534963
Citations 14
Authors
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Abstract

Background: Many epidemiological studies have shown that vitamin D deficiency is associated with various types of human cancers. The biological action of vitamin D and its metabolites is mediated by the transcription factor vitamin D receptor (VDR). The gene is highly expressed in the colon and is involved in many biological functions. The aim of the current study was to assess the relationship between serum vitamin D metabolite and calcium levels with polymorphisms in normal and colorectal cancer (CRC) patients.

Methods: Fifty Saudi CRC patients and fifty controls were enrolled in the study. The levels of total vitamin D, 25(OH)D, and calcium were measured in serum.

Results: The homozygous genotype (aa) of the polymorphism (rs7975232) was found to correlate with total serum vitamin D levels of CRC patients, while the heterozygous (Tt) polymorphism (rs731236) was associated with serum calcium levels. In contrast, the and polymorphisms (rs1544410 and rs2228570, resp.) did not affect the serum levels of total vitamin D, 25-hydroxyvitamin D, and calcium.

Conclusion: Appropriate vitamin D levels were shown to be important in preventing the onset of CRC.

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Relevance of Serum Levels and Functional Genetic Variants in Vitamin D Receptor Gene among Saudi Women with Gestational Diabetes Mellitus.

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