RecruitingNot ApplicableNCT06565936

DPA-714 and FDG PET/MRI in Depression

Clinical Application of DPA-714 and FDG PET/MRI Imaging in Patients With Depression

Sponsor

The First Affiliated Hospital of Dalian Medical University

Enrollment

70 participants

Start Date

Aug 23, 2024

Study Type

INTERVENTIONAL

Conditions

Depression

Summary

Depression, a common psychological disorder, is characterized by persistent low mood, loss of interest, and anhedonia, leading to significant dysfunctions and a high suicide risk. Its pathogenesis remains challenging, with recent focus on neuroinflammation-a chronic immune response in the central nervous system-as a potential contributor. PET imaging, using tracers like 18F-FDG and \[18F\]DPA-714, can visualize metabolic and neuroinflammatory changes. Combining these two tracers can explore the correlation between neuroinflammation and glucose metabolism in depression, further elucidating its possible mechanisms. We hypothesize that microglial activation in depression, especially in major gray matter regions of interest (prefrontal cortex, anterior cingulate cortex, and insula) and 12 additional regions and subregions, will show higher TSPO levels and increased glucose metabolism compared to the control group.

Eligibility

Min Age: 35 YearsMax Age: 85 Years

Inclusion Criteria19

For all groups :
No alcohol or psychoactive substances such as coffee had been consumed in the 24 hours prior to the examination
MMSE≥24 points，MOCA≥26 points
No anti-infective drugs in the past 1 month, no cold, fever or other infection history in the past 2 weeks
Patients with diabetes had fasting controlled below 9.0mmol/L before the examination
Volunteer to participate in the study and sign the informed consent
For Recurrent depression patients:
Meet the Diagnostic criteria for recurrent major depressive disorder in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-V)
Age 35-85 years old, gender is not limited
HAMD≥8 points
For first episode depression Patients:
Gender, age and education level were matched with the recurrent depression group
Meet the Diagnostic criteria for the first episode of depressive disorder in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-V)
HAMD≥8 points
For controls:
Healthy people undergoing "DPA-714 or FDG imaging PET/MRI" physical examination in PET/CT room of our hospital
Gender and education level were consistent with both the recurrent depression group and the first-episode depression group
never used any psychotropic drugs
HAMD\<8 points；HAMA\<7 points

Exclusion Criteria10

Have a history of organic mental disorders or other mental disorders
A family history of hereditary diseases
Persons with mental retardation or dementia
A history of psychoactive substance abuse
Can not cooperate with/complete the psychological examination scale
Previously found serious physical diseases (heart, brain, liver, lung and kidney)
MRI contraindications, abnormalities found in head CT or MRI
A history of drug or alcohol abuse
Have a history of metabolic diseases such as hyperthyroidism, hypothyroidism,and rheumatic diseases
are in the state of pregnancy or breastfeeding

Interventions

RADIATIONPET scan with tracer injection [18F] DPA-714 or [18F]F-FDG

Brain PET/MRI imaging will be conducted following the administration of \[18F\] DPA-714 or \[18F\]F-FDG. The radiopharmaceuticals are given intravenously in doses that are safe for the human body, with minimal quantities to reduce potential effects. Additionally, the irradiation levels are kept low, ensuring the procedure is safe and reliable for patients.