Dissecting Schizophrenia Biology Using Pleiotropy with Cognitive Genomics
Upasana Bhattacharyya1,2, Jibin John1,2, Todd Lencz1,2,3
1Institute of Behavioral Science, Feinstein Institutes for Medical Research, Manhasset, NY.
Summary
This study identifies distinct genetic loci associated with schizophrenia risk and cognitive function using a novel pleiotropic meta-analysis. Concordant loci link to neurodevelopment, while discordant loci relate to synaptic function, offering new insights into schizophrenia biology.
Area of Science:
- Genetics
- Neuroscience
- Psychiatry
Background:
- Psychiatric Genome-Wide Association Studies (GWAS) have identified numerous loci, necessitating biological pathway specification.
- Previous work differentiated schizophrenia-associated SNPs into 'concordant' (increased risk, reduced cognition) and 'discordant' (decreased risk, reduced cognition) alleles.
Conclusions:
- Schizophrenia risk and cognitive function share distinct genetic underpinnings related to neurodevelopment and synaptic function.
- Prenatal gene expression is more prominent in loci associated with increased schizophrenia risk and reduced cognition.
- Dual loci highlight a novel role for mRNA translation initiation in schizophrenia pathophysiology.
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