Gastrointestinal Microflora and Serum Metabolomics in Patients With Pancreatic Cancer and Chronic Pancreatitis

Gastrointestinal Microflora and Serum Metabolomics in Patients With Pancreatic Cancer and Chronic Pancreatitis

The investigators plan to collect throat swabs, saliva, feces and serum samples from pancreatic cancer patients, chronic pancreatitis patients and healthy people and clarify the characteristics of oral flora and serum metabolome of pancreatic cancer patients.

Inclusion Criteria:

1.Pathologic diagnosis of pancreatic ductal adenocarcinoma；Diagnosis of CP defined as having obvious morphological features of CP (i.e., the presence of pancreatic calcifications on CT scan and/or magnetic resonance cholangiopancreatography)；Other benign disease populations without pancreatic lesions.

Exclusion Criteria:

1. Pregnant women.
2. Patients with coagulation disorders who are unable to undergo blood tests.
3. Have a history of using antibiotics or probiotics within the past 3 months.