The impact of long-term (≥5 years) cholecystectomy on gut microbiota changes and its influence on colorectal cancer risk: based on 16S rDNA sequencing analysis.
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引用次数: 0
Abstract
Background: Colorectal cancer (CRC) continues to be a major global health concern. Recent advances in molecular biology have highlighted the gut microbiota's role in CRC. This study investigates long-term (≥5 years) gut microbiota changes in patients postcholecystectomy, comparing them with CRC patients and healthy controls to assess their impact on CRC development.
Methods: Sixty participants were divided into three groups: 20 healthy controls, 20 postcholecystectomy (PCE) patients, and 20 CRC patients. Demographic data and stool samples were collected. Gut microbiota composition, abundance, and diversity were analyzed using high-throughput 16S rDNA sequencing.
Results: Significant differences in microbial community, α-diversity ( P < 0.05) and β-diversity ( P = 0.006), were observed among the three groups. At the phylum level, Firmicutes abundance was significantly reduced in PCE and CRC groups compared with the control group ( P = 0.002), while changes in other phyla were not significant ( P >0.05). At the genus level, Bacteroides , Dialister , and Parabacteroides increased progressively from control to PCE to CRC groups ( P = 0.004, 0.001, and 0.002). Prevotella decreased across these groups ( P = 0.041). Faecalibacterium and Roseburia abundances were reduced in PCE and CRC groups compared with controls ( P = 0.001 and 0.003). The Random Forest algorithm identified Parabacteroides , Bacteroides , Roseburia , and Dialister as key distinguishing genera.
Conclusion: The gut microbiota of long-term (≥5 years) PCE patients significantly differs from that of controls and resembles that of CRC patients, suggesting a potential link between cholecystectomy and CRC development through key microbial changes.
期刊介绍:
European Journal of Gastroenterology & Hepatology publishes papers reporting original clinical and scientific research which are of a high standard and which contribute to the advancement of knowledge in the field of gastroenterology and hepatology.
The journal publishes three types of manuscript: in-depth reviews (by invitation only), full papers and case reports. Manuscripts submitted to the journal will be accepted on the understanding that the author has not previously submitted the paper to another journal or had the material published elsewhere. Authors are asked to disclose any affiliations, including financial, consultant, or institutional associations, that might lead to bias or a conflict of interest.