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Chinese Journal of Hepatic Surgery(Electronic Edition) ›› 2024, Vol. 13 ›› Issue (03): 313-318. doi: 10.3877/cma.j.issn.2095-3232.2024.03.010

• Clinical Research • Previous Articles    

Analysis of the relationship between cholecystectomy and colorectal and anal cancers based on Mendelian randomization

Bin Niu1, Lanying Rao2, Xiaochen Liu1, Longlin He1, Peixin Qin3,()   

  1. 1. Department of General Surgery, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
    2. Infirmary, the Third Middle School of Zhuhai, Zhuhai 519000, China
    3. Department of Radiology, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
  • Received:2024-01-30 Online:2024-06-10 Published:2024-05-24
  • Contact: Peixin Qin

Abstract:

Objective

To analyze the relationship between cholecystectomy and colorectal and anal cancers based on two-sample Mendelian randomization (TSMR).

Methods

The data of single nucleotide polymorphism (SNP) related to colorectal and anal cancers after cholecystectomy were obtained from open biological databases, and all retrieved data were analyzed based on genome-wide association studies (GWAS) database. The genetic loci closely associated with cholecystectomy were selected as instrumental variables. TSMR analysis was performed by using MR-Egger regression method, median weighted (MW) and inverse-variance weighted (IVW) methods, respectively. The causal relationship between cholecystectomy and the risk of colorectal and anal cancers was evaluated by P value.

Results

A total of 32 SNPs related to cholecystectomy were screened. There was no causal relationship between cholecystectomy and cecum cancer (OR=22.222, 95%CI: 6.280e-02, 7.864e+03; P=0.300), no causal relationship between cholecystectomy and the ascending colon cancer (OR=3.176, 95%CI: 1.939e-03, 5.204e+03; P=0.760), and no causal relationship between cholecystectomy and transverse colon cancer (OR=0.093, 95%CI: 6.683e-06, 1.297e+03; P=0.626), and no causal relationship between cholecystectomy and the descending colon cancer (OR=0.093, 95%CI: 6.683e-06, 1.297e+03; P=0.626), and no causal relationship between cholecystectomy and sigmoid colon cancer (OR=2.737, 95%CI: 4.24e-02, 176.696; P=0.636), and no causal relationship between cholecystectomy and rectal cancer (OR=0.306, 95%CI: 7.153e-03, 13.099; P=0.537), and no causal relationship between cholecystectomy and anal cancer (OR=13.14, 95%CI: 6.683e-07, 2.600e+06, P=0.764), respectively. Subsequent sensitivity analysis confirmed the robustness of the correlation.

Conclusions

Based on TSMR analysis, there is no genetic evidence supporting the correlation between cholecystectomy and the risk of colorectal and anal cancers. Cholecystectomy does not lead to the incidence of colorectal and anal cancers.

Key words: Two sample Mendelian randomization, Cholecystectomy, Colorectal neoplasms, Anal canal neoplasms

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