Study on the Molecular Mechanism of Berberine to Improve Type 2 Diabetes Mellitus Complicated With Depression

Summary

The incidence of type 2 diabetes with comorbid depression (T2DD) is notably high, characterized by prolonged disease duration and susceptibility to recurrence. The preliminary experiments identified 5-AVAB, a gut microbiota-derived metabolite, as a potential novel biomarker for T2DD progression. Given the absence of existing research in this area, it warrants in-depth investigation. The investigators plan to collect fecal and serum samples from participants with type 2 diabetes and those with T2DD to quantify 5-AVAB levels, as well as conduct in vitro gut microbiota culturing and sequencing studies.

Eligibility

Inclusion Criteria:

1. Aged 18-65 years (including the critical value), regardless of gender;
2. The Con group was diagnosed with type 2 diabetes and had no history of mental disorders such as depression;
3. The T2DD patient group was diagnosed with type 2 diabetes and depression, where depression met the DSM-5 diagnostic criteria for recurrent depression without psychotic symptoms or single-episode MDD, and the total score of the HAMD-17 scale was ≥22 points;
4. The subjects read and fully understood the patient instructions and signed the informed consent form.

Exclusion Criteria:

1. Those who do not meet the inclusion criteria;
2. Those who have not used antibiotics, prebiotics, probiotics, enteral nutrition drugs, etc. within 3 months before diagnosis, and those who do not use antibiotics, prebiotics, probiotics, enteral nutrition drugs, etc. during treatment;
3. Those with progressive serious diseases (such as cancer);
4. Those with severe aphasia, agnosia, and apraxia;
5. Those who have used psychotropic drugs for a long time within 1 month before the study or have received new drug research in the past 3 months;
6. Pregnant or breastfeeding women;
7. Alcoholics or drug addicts;
8. Those with poor mental condition and unable to cooperate;
9. Those who are considered unsuitable for inclusion in the study.

Conditions3

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