https://www.nature.com/articles/s41380-024-02561-1
- Study Focus: Examines monozygotic twins discordant for schizophrenia to understand neurophysiological differences1.
- Schizophrenia Prevalence: Affects approximately 1% of the global population, with genetics, epigenetics, and environmental factors playing roles1.
- Twin Study: Fibroblasts from two pairs of twins discordant for schizophrenia and three pairs of healthy twins were used to create iPSC models1.
- Neurophysiological Findings: Neurons from schizophrenia patients showed less arborization, hypoexcitability, immature spike features, and reduced synaptic activity1.
- Gene Dysregulation: Significant dysregulation in synapse-related genes was observed in schizophrenia patients1.
- Co-Twin Differences: Neurons from the co-twin without schizophrenia formed a distinct group, different from both the affected twin and healthy controls1.
- Synaptic Activity: Unlike the affected twins, the synaptic activity of the co-twins without schizophrenia was not impacted1.
- Conclusion: Points to hippocampal synaptic deficits as a central mechanism in schizophrenia1.
This study provides insights into the synaptic and gene expression differences that may underlie the pathophysiology of schizophrenia in monozygotic twins.