Gastric Cancer
Conditions
Interventions
Observation group:None
Sponsors
Zhujiang Hospital, Southern Medical University
Eligibility
Sex/Gender
All
Age
18 Years to 75 Years
Inclusion criteria
Inclusion criteria: 1.No prior history of tumors. 2.Age between 18 and 75 years. 3.Male or non-pregnant, non-lactating female. 4.Patients have not received radiotherapy or chemotherapy prior to surgery. 5.Can provide adequate and qualified blood samples. 6.Patient resources have signed informed consent. For the Gastric Cancer Group: 7.Preoperative endoscopic examination with pathological diagnosis of colorectal adenocarcinoma or high-grade adenoma. For the Control Group: 8.Some individuals have certain digestive tract symptoms, and doctors recommend endoscopic examination; endoscopic examination with pathological diagnosis of benign gastric diseases. 9.Some individuals are healthy with endoscopic examination showing no significant lesions. 10.Other confirmed tumors not related to gastric cancer, including colorectal cancer, liver cancer, esophageal cancer, bile duct cancer, pancreatic cancer, and common non-digestive tract tumors such as lung cancer, breast cancer, cervical cancer, thyroid cancer, etc.
Exclusion criteria
Exclusion criteria: 1.Patients who participated in other clinical trials within 30 days prior to enrollment. 2.Women who are pregnant or lactating. 3.History of tumors and corresponding tumor treatments. 4.Received blood transfusion within 30 days prior to blood draw. 5.History of organ, bone marrow, or stem cell transplants. 6.Individuals whose health condition is unsuitable for blood collection. 7.Patients with incomplete clinical data (including TNM staging, tumor volume, pathological classification, site of occurrence, vascular invasion, age, sex, invasion depth, degree of differentiation, alcohol history, smoking history, etc.). 8.Diseases deemed unsuitable for the study by other researchers.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Methylation level; | — |
Countries
China
Contacts
Public ContactCui Chunhui
Zhujiang Hospital, Southern Medical University
Outcome results
None listed