colorectal cancer
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Cases group: 1. Diagnosed as colorectal cancer by colonoscopy biopsy; 2. to obtain informed consent; 3. ASA Class I-II; 4. First discovered without any treatment and surgical indications; Control group: Chinese healthy subjects without heart, liver, kidney, gastrointestinal, and nervous system and other chronic diseases.
Exclusion criteria
Exclusion criteria: 1. cannot be informed consent; 2. Patients with severe heart, lung, kidney, brain and blood disease; 3. Patients with severe psychosis (such as Depression, mania, seizures, schizophrenia).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Hydrogen sulfide;Pathological diagnosis; | — |
Secondary
| Measure | Time frame |
|---|---|
| imaging findings; | — |