Causal Relationship Between Colorectal Cancer and Common Psychiatric Disorders: A Two-sample Mendelian Randomization Study

ObjectiveTo elucidate the causal relationships between colorectal cancer (CRC) and prevalent psychiatric disorders through a two-sample Mendelian randomization approach. MethodsUtilizing publicly available genome-wide association study data, we explored the connections between CRC and various psychi...

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Bibliographic Details
Main Authors: Yuan YAO, Mingze YANG, Chen LI, Haibo CHENG
Format: Article
Language:zho
Published: Magazine House of Cancer Research on Prevention and Treatment 2025-06-01
Series:Zhongliu Fangzhi Yanjiu
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Online Access:http://www.zlfzyj.com/cn/article/doi/10.3971/j.issn.1000-8578.2025.24.1154
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Summary:ObjectiveTo elucidate the causal relationships between colorectal cancer (CRC) and prevalent psychiatric disorders through a two-sample Mendelian randomization approach. MethodsUtilizing publicly available genome-wide association study data, we explored the connections between CRC and various psychiatric disorders, including depression, anxiety, bipolar disorder, and schizophrenia. We applied three statistical analyses: inverse variance weighting, MR-Egger, and median weighting. Sensitivity analyses were conducted to ensure the reliability and validity of the results. ResultsInverse variance weighting analysis showed no significant links between CRC and depression (P=0.090), anxiety (P=0.099), or schizophrenia (P=0.899). Conversely, a significant inverse relationship was found with bipolar disorder (P=0.010). ConclusionNo causal connection exists between CRC and the psychiatric conditions of depression, anxiety, or schizophrenia. However, CRC may have a causal association with a reduced risk of bipolar disorder, further supporting the existence of the gut-brain axis.
ISSN:1000-8578