This study is a prospective observational study. The study will explore the correlation between advanced glycation end products and gastric motility disorder in diabetic gastroparesis（DGP) through the collection of blood and gastric tissue samples and relevant data of patients with DGP and control group patients without diabetes history and gastroparesis symptoms.
Meet the diagnostic criteria for diabetes
Presence of symptoms (see assessment of Gastroparesis Cardinal Symptom Index)
Age range from 18 to 75 years old
Voluntarily participate and sign an informed consent form
Currently taking prokinetic drugs, anticholinergic drugs, and dopamine drugs that may affect gastric motility
Has a history of gastrointestinal surgery
Pregnant or preparing to conceive
There are neurological disorders such as Parkinson's disease that affect gastrointestinal function