Association of Gut Microbiota Dysbiosis with Prolonged Time to First Flatus in Colorectal Cancer Patients: A Perioperative Observational Study Based on 16S rRNA Sequencing
This BioSample set includes 140 fecal samples collected from 60 colorectal cancer patients undergoing laparoscopic radical resection. Patients were divided into a shortened TFF group with TFF less than 66 hours, comprising 30 patients, and a prolonged TFF group with TFF equal to or greater than 66 hours, comprising the other 30 patients. Fecal samples were collected at three time points, preoperatively as T0, 5 plus or minus 1 days postoperatively as T1, and 10 plus or minus 1 days postoperatively as T2. The V3-V4 hypervariable regions of the 16S rRNA gene were sequenced to analyze gut microbiota composition and diversity. All samples were collected at Nanning, China.