Latent Association Between Diets and Glioma Risk: A Mendelian Randomization Analysis

  • 0State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou 510060, China.

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Summary

This summary is machine-generated.

This study used Mendelian randomization to explore diet and glioma risk. Cooked vegetable intake may increase glioblastoma risk, while alcohol intake might protect against non-GBM gliomas, though beer consumption shows an increased risk.

Area Of Science

  • Nutritional epidemiology
  • Cancer research
  • Genetic epidemiology

Background

  • Gliomas, especially glioblastoma, have poor prognoses.
  • Dietary factors are suspected to influence glioma risk, but observational studies face confounding.
  • Mendelian randomization is used to investigate causal links between diet and glioma.

Purpose Of The Study

  • To investigate the causal relationship between various dietary factors and glioma risk.
  • To differentiate risk for glioblastoma (GBM) and non-GBM gliomas.

Main Methods

  • A two-sample Mendelian randomization (MR) framework was employed.
  • Genome-wide association study data for 22 dietary exposures and glioma risk were analyzed.
  • Inverse-variance weighted regression, MR-Egger, and MR-PRESSO were used for causal inference and pleiotropy assessment.

Main Results

  • Cooked vegetable intake showed a positive causal association with glioblastoma risk (OR = 6.55).
  • Alcohol intake was protective for non-GBM glioma risk (OR = 0.770).
  • Beer consumption was linked to increased non-GBM glioma risk (OR = 4.82); other factors were not significant.

Conclusions

  • Cooked vegetable intake, beer consumption, and alcohol intake may causally influence glioma risk.
  • Findings suggest specific dietary components as potential modifiable risk factors.
  • Further research is needed to explore dietary determinants for glioma prevention.