ArticleRecent patents on anti-cancer drug discovery2025
Causal Relationships of Chronic Constipation and Irritable Bowel Syndrome with Digestive Tract Cancers: A Mendelian Randomization Study.
Article in Recent patents on anti-cancer drug discovery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed, 2 citations in OpenAlex.
- Genetically proxied risk and protective factors for pancreatic cancer: a systematic review and meta-analysis of Mendelian randomization studies.Journal of gastrointestinal oncology · 2025Article
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6 authors at 1 institution in 1 country.
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Abstract
backgroundChronic constipation and irritable bowel syndrome (IBS) manifest as prevalent gastrointestinal disorders, while digestive tract cancers (DTCs) present formidable challenges to global well-being. However, extant observational studies proffer uncertain insights into potential causal relationships of constipation and IBS with susceptibility to DTCs.
methodsWe executed Mendelian randomization (MR) analysis to establish causal connections between these conditions and seven distinct categories of DTCs, including colorectal carcinoma (CRC), hepatocellular cancer (HCC), esophageal malignancy (ESCA), pancreatic adenocarcinoma (PAAD), biliary tract carcinoma (BTCs), gastric carcinoma (GC), and small intestine neoplasm (SIC). Leveraging instrumental variables (IVs) obtained from GWAS data of the FinnGen database, we employed a range of analytical methodologies, including inverse-variance weighting multiplicative random effects (IVW_MRE), inverse-variance weighting fixed effects (IVW_FE), maximum likelihood (ML), weighted median (WM), MR‒Egger regression, and the MR-PRESSO test.
resultsWe observed a substantial linkage between genetically predicted constipation and increased vulnerability to PAAD (OR = 2.29, 95% CI: 1.422-3.69, P = 0.001) via the IVW method. Following the removal of outlier SNPs through MR-PRESSO, genetically predicted IBS was affiliated with an increased risk of CRC (OR = 1.17, 95% CI: 1-1.37, P = 0.05). Nonetheless, decisive causal correlations of constipation or IBS with other DTCs remain elusive.
conclusionIn summary, genetically predicted constipation was associated with an augmented PAAD risk, and IBS was associated with an increased CRC susceptibility within European cohorts, in agreement with some observational studies. Nevertheless, the causal associations of constipation and IBS with other DTCs remain inconclusive.
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