Type 2 diabetes mellitus and cancer: A systematic review and meta-analysis of Mendelian randomization studies - Takeaways - MDSpire

Type 2 diabetes mellitus and cancer: A systematic review and meta-analysis of Mendelian randomization studies

  • By

  • Wei Wu

  • Guo-liang Huang

  • Jia Cui

  • April 15, 2026

  • 0 min

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  • 1

    This study investigates the causal relationship between type 2 diabetes mellitus (T2DM) and 17 site-specific cancers using Mendelian randomization.

  • 2

    The meta-analysis included 44 articles and 131 MR studies, revealing significant associations between T2DM and pancreatic and endometrial cancers.

  • 3

    T2DM was associated with a decreased risk of gastric cancer, melanoma, and esophageal cancer, indicating a tissue-specific relationship.

  • 4

    The study highlights the limitations of previous observational studies, emphasizing the need for high-quality research to clarify these associations.

  • 5

    Mendelian randomization offers a robust method to infer causal links, potentially overcoming confounding biases present in traditional studies.

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