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Related Experiment Video

Updated: Jan 25, 2026

Direct Protein Delivery to Mammalian Cells Using Cell-permeable Cys2-His2 Zinc-finger Domains
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Association between zinc and chronic hepatitis: A 2-sample Mendelian randomization study.

ZhengHao Zhang1, TianYang Chen2, Yong Qi3

  • 1The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China.

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|January 24, 2026
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Summary

This study found that higher zinc levels offer a protective effect against chronic hepatitis (CH). This research used Mendelian randomization to establish a significant causal link, advancing understanding of CH pathogenesis.

Keywords:
Mendelian randomization analysiscausal researchchronic hepatitismicronutrientszinc

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Area of Science:

  • Nutritional Science
  • Hepatology
  • Genetic Epidemiology

Background:

  • Micronutrients are crucial in chronic hepatitis (CH) development and progression.
  • Variations in nutrient levels impact CH patient outcomes.
  • Understanding these relationships is key for effective CH management.

Purpose of the Study:

  • To investigate the causal relationships between 14 key micronutrients and chronic hepatitis (CH) pathogenesis.
  • To identify specific micronutrients influencing CH development.
  • To establish a scientific basis for nutritional interventions in CH.

Main Methods:

  • Utilized Mendelian randomization (MR) to assess causality between 14 micronutrients and CH.
  • Employed multiple MR methods including inverse-variance weighting, MR-Egger, and weighted median.
  • Instrumental variables from large-scale GWAS, CH outcome data from FinnGen database, and sensitivity analyses for robustness.

Main Results:

  • A significant protective causal association was found between higher zinc levels and reduced risk of chronic hepatitis (CH).
  • Inverse-variance weighting analysis showed P=0.022, OR=0.806 (95% CI: 0.670-0.970).
  • Sensitivity analyses confirmed the robustness of the zinc-CH association, with no significant heterogeneity or pleiotropy detected.

Conclusions:

  • Zinc demonstrates a significant protective effect against chronic hepatitis (CH).
  • This establishes a causal link, advancing the understanding of CH pathogenesis.
  • Findings support the development of targeted nutritional strategies for CH management.