Preliminary Comparison of Oral and Intestinal Human Microbiota in Patients with Colorectal Cancer: A Pilot Study/Experiment 1

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Reviewed Marked as Reviewed by Folakunmi on 2024-1-10

Curated date: 2022/01/04

Curator: Itslanapark

Revision editor(s): Itslanapark, WikiWorks, Atrayees, Peace Sandy


Location of subjects
Host species Species from which microbiome was sampled. Contact us to have more species added.
Homo sapiens
Body site Anatomical site where microbial samples were extracted from according to the Uber Anatomy Ontology
Feces Cow dung,Cow pat,Droppings,Dung,Excrement,Excreta,Faeces,Fecal material,Fecal matter,Fewmet,Frass,Guano,Matières fécales@fr,Merde@fr,Ordure,Partie de la merde@fr,Piece of shit,Porción de mierda@es,Portion of dung,Portion of excrement,Portion of faeces,Portion of fecal material,Portion of fecal matter,Portion of feces,Portion of guano,Portion of scat,Portionem cacas,Scat,Spoor,Spraint,Stool,Teil der fäkalien@de,Feces,feces
Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
Colorectal cancer cancer of colorectum,cancer of large bowel,cancer of large intestine,cancer of the large bowel,colon cancer,colorectal cancer,colorectum cancer,CRC,large intestine cancer,malignant colorectal neoplasm,malignant colorectal tumor,malignant colorectum neoplasm,malignant large bowel neoplasm,malignant large bowel tumor,malignant large intestine neoplasm,malignant large intestine tumor,malignant neoplasm of colorectum,malignant neoplasm of large bowel,malignant neoplasm of large intestine,malignant neoplasm of the large bowel,malignant neoplasm of the large intestine,malignant tumor of large bowel,malignant tumor of large intestine,malignant tumor of the large bowel,malignant tumor of the large intestine,Colorectal cancer
Group 0 name Corresponds to the control (unexposed) group for case-control studies
Healthy Controls
Group 1 name Corresponds to the case (exposed) group for case-control studies
Colorectal Cancer Patients
Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
Italian patients aged 71-95 with colorectal adenocarcinoma confirmed by histological analysis undergoing surgical resections
Group 0 sample size Number of subjects in the control (unexposed) group
Group 1 sample size Number of subjects in the case (exposed) group
Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
3 months

Lab analysis

Sequencing type
16S variable region One or more hypervariable region(s) of the bacterial 16S gene
Sequencing platform Manufacturer and experimental platform used for quantifying microbial abundance

Statistical Analysis

Data transformation Data transformation applied to microbial abundance measurements prior to differential abundance testing (if any).
relative abundances
Statistical test
Significance threshold p-value or FDR threshold used for differential abundance testing (if any)
MHT correction Have statistical tests be corrected for multiple hypothesis testing (MHT)?

Alpha Diversity

Shannon Estimator of species richness and species evenness: more weight on species richness
Chao1 Abundance-based estimator of species richness

Signature 1

Reviewed Marked as Reviewed by Folakunmi on 2024-1-10

Curated date: 2022/01/12

Curator: Itslanapark

Revision editor(s): Itslanapark, Peace Sandy, Atrayees, Folakunmi

Source: Figure 7A

Description: Linear discriminant analysis of association between sampling sites and microbial taxa. A linear discriminant analysis was performed using Lefse and considering the three body sites sampled in this study, namely: biopsy (red), saliva (green), and stool (blue). (A) Different body sites showed a characteristic taxonomic composition with major clades strongly associated with a particular site. Proteobacteria were mostly associated with biopsy samples whereas Fusobacteria and Bacteroidetes were mainly associated with saliva and stool samples, respectively.

Abundance in Group 1: increased abundance in Colorectal Cancer Patients

NCBI Quality ControlLinks
unclassified Bacteria
unclassified Clostridiales Family XVII.

Revision editor(s): Itslanapark, Peace Sandy, Atrayees, Folakunmi