A major PET imaging study reveals widespread, non-random synaptic loss in schizophrenia, distinct from brain volume changes seen on MRI.
Key Details
- 1Study used specialized PET imaging to directly measure synaptic connections in the human brain.
- 2122 subjects participated, including 29 with schizophrenia—one of the largest synaptic density PET studies.
- 3Schizophrenia patients showed widespread synaptic loss, especially in the left frontal lobe and regions rich in neurotransmitter receptors.
- 4Patterns of synaptic loss were distinct from MRI-detected brain volume changes, indicating separate biological processes.
- 5Computer modeling suggested synaptic loss originates and spreads from specific brain regions.
- 6Findings may guide future targeted interventions to preserve or restore brain function.
Why It Matters
This is a significant advance in understanding the neurobiological basis of schizophrenia using advanced imaging beyond standard MRI. The results may support more precise and personalized imaging biomarkers—and potentially intervention targets—for psychiatric disease.
Source
EurekAlert
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