# MiRNA polymorphisms affect the prognosis of gastric cancer: insights from Xianyou, Fujian

## TL;DR

This study shows that certain miRNA genetic variations are linked to the prognosis of gastric cancer patients in Xianyou, Fujian.

## Contribution

The study identifies specific miRNA SNPs as independent predictors of gastric cancer prognosis in a regional population.

## Key findings

- The GG genotype at MSH2 rs17502941 independently increases gastric cancer risk.
- Several miRNA SNPs (rs17502941, rs884225, rs1468063, rs7143252, rs2271738) are associated with patient prognosis.
- miRNA polymorphisms significantly affect survival time in gastric cancer patients.

## Abstract

Gastric cancer, characterized by high incidence and substantial disease burden, has drawn continuous attention regarding its occurrence and prognosis. Genetics plays a crucial role in influencing the prognosis of gastric cancer, and single nucleotide polymorphisms are closely associated with the occurrence, development, and prognosis of this malignant tumor. Our study aims to conduct survival analysis on patients carrying different single nucleotide polymorphisms, exploring the relationship between miRNA single nucleotide polymorphisms and the prognosis of gastric cancer.

Genetic data from 344 patients in Xianyou, Fujian, formed the basis of our study. We delineated the survival rate and median survival time, utilizing the log-rank test and COX regression analysis as statistical tools.

Upon stratifying the data by sex or operation, it was discerned that the GG genotype at MSH2 rs17502941 independently posed a heightened risk for gastric cancer. Other stratification analyses suggested that the subsequent single nucleotide polymorphisms were correlated with patient prognosis: rs17502941, rs884225, rs1468063, rs7143252, and rs2271738.

The outcomes of this study strongly suggest that miRNA polymorphisms significantly influence the survival time of gastric cancer patients and can serve as effective predictors for the prognosis of gastric cancer.