Effect of Mutations in T2DM Susceptibility Genes on the Expression of Susceptibility Genes in Patients With T2DM and Controls

The Affiliated Hospital of Xuzhou Medical University300 enrolled

Overview

In this study, investigators wanted to determine the effect of T2DM susceptibility gene mutations on self-expression. Participants (T2DM patients and controls) were recruited to identify genotypes and detect the levels of T2DM susceptibility genes expression in the fresh peripheral plasma. The normal pancreatic tissues or adjacent tissues of pancreatic cancer were also collected to identify the expression differences of T2DM susceptibility genes under different genotypes.

The primary objective of this study was to investigate the changes of the expression of T2DM susceptible genes (NOS1AP, KCNQ1, TCF7L2, WSF1, GLP-1R, etc.) in participants (newly diagnosed T2DM patients and controls) after gene mutation. Secondly, the expression differences of T2DM susceptible genes in T2DM patients with different genotypes were compared, and the relationship between the expression differences and clinicopathological characteristics of T2DM patients was analyzed. Participants (newly diagnosed T2DM patients and healthy subjects) were screened from the department of endocrinology and health management center, whose fresh peripheral blood were collected. The normal pancreatic tissues or adjacent tissues of pancreatic cancer were collected in the department of general surgery. The DNA genome was extracted for genotyping, and then the expression levels of T2DM related susceptibility genes under different genotypes were detected by ELISA kits, PCR, WB,HE staining, IHC staining, ect. The basic information of T2DM patients was collected, including demographic characteristics, physiological and biochemical data.Then investigators further compared the differences in the expression of susceptible genes between newly diagnosed T2DM patients and controls.

Study Type

INTERVENTIONAL

Allocation

Purpose

PREVENTION

Masking

NONE

Enrollment

300

Interventions

Fresh normal pancreatic tissues or adjacent tissues of pancreatic cancer were collected from controls and T2DM patients without hypoglycemic drugsDRUG

Compared with newly diagnosed T2DM patients, healthy subjects in the control group had normal levels of blood glucose, lipids, glycated hemoglobin levels, etc. Fresh normal pancreatic tissues or adjacent tissues of pancreatic cancer were collected before taking antidiabetic drugs in both groups.

Fresh blood samples were collected from healthy subjects and T2DM patients without hypoglycemic drugsDRUG

The newly diagnosed T2DM group should not have taken antidiabetic drugs and meet the diagnosis of T2DM. Fresh blood samples were collected before medication for detection. In the control group (healthy subjects), the indicators of physical examination were within the normal range and no hypoglycemic drugs were taken. Similarly, fresh blood samples should be taken for testing.

Eligibility

Sex: ALLMin age: 25 YearsMax age: 70 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: 1. no drug therapy; 25 to 70 years old; Hemoglobin A1c (HbA1c) 7%-12%; BMI 20-35 kg/m2; Stable body weight (≤10% change within 3 months)（For newly diagnosed patients with T2DM）. 2. 25 to 60 years old; BMI 19-26 kg/m2; in good health, with no abnormalities of motor system, digestive system, respiratory system, urogenital system, blood system, circulatory system, nervous/mental system, endocrine system, etc（For healthy subjects）. 3. 20-80 years old; surgical resection of part or all of the pancreas; pancreatic lesions confirmed by enhanced CT or magnetic resonance (MR) examination or confirmed by intraoperative and postoperative pathology（For the patients in general surgical）. Exclusion Criteria: 1. had taken antidiabetic drugs; 2. had a history of pancreatic surgery; 3. Complicated with severe organ lesions; 4. Long-term use of drugs that affect pancreatic function.

Locations (1)

China, Jiangsu, Department of Endocrinology

Xuzhou, China

RECRUITING

Outcomes

Primary Outcomes

Detection of T2DM susceptibility gene expression in newly diagnosed T2DM patients

To detect the expression levels of susceptible genes in the plasma and the pancreatic tissues of newly diagnosed T2DM patients and compared with those in healthy subjects.

Time frame: 1 month after fresh sample collection

Detection of T2DM susceptibility gene expression in controls

To detect the expression levels of susceptible genes in the plasma and the pancreatic tissues of controls and compared with those in newly diagnosed T2DM patients.

Time frame: 1 month after fresh sample collection

Correlation between T2DM susceptibility gene expression and clinicopathological features

Incidence of clinical pancreatic diseases under expression differences in T2DM susceptibility genes

Time frame: 6 months after obtaining the clinicopathological results