The polygenic architecture of schizophrenia—rethinking pathogenesis and nosology

OB Smeland, O Frei, AM Dale… - Nature Reviews …, 2020 - nature.com
Schizophrenia is a severe psychiatric disorder with considerable morbidity and mortality.
Although the past two decades have seen limited improvement in the treatment of …

Discovery of shared genomic loci using the conditional false discovery rate approach

OB Smeland, O Frei, A Shadrin, K O'Connell, CC Fan… - Human genetics, 2020 - Springer
In recent years, genome-wide association study (GWAS) sample sizes have become larger,
the statistical power has improved and thousands of trait-associated variants have been …

Genome-wide association meta-analysis in 269,867 individuals identifies new genetic and functional links to intelligence

JE Savage, PR Jansen, S Stringer, K Watanabe… - Nature …, 2018 - nature.com
Intelligence is highly heritable and a major determinant of human health and well-being.
Recent genome-wide meta-analyses have identified 24 genomic loci linked to variation in …

New insights from the last decade of research in psychiatric genetics: discoveries, challenges and clinical implications

OA Andreassen, GFL Hindley, O Frei… - World …, 2023 - Wiley Online Library
Psychiatric genetics has made substantial progress in the last decade, providing new
insights into the genetic etiology of psychiatric disorders, and paving the way for precision …

Bivariate causal mixture model quantifies polygenic overlap between complex traits beyond genetic correlation

O Frei, D Holland, OB Smeland, AA Shadrin… - Nature …, 2019 - nature.com
Accumulating evidence from genome wide association studies (GWAS) suggests an
abundance of shared genetic influences among complex human traits and disorders, such …

The relationship between polygenic risk scores and cognition in schizophrenia

AL Richards, AF Pardiñas, A Frizzati… - Schizophrenia …, 2020 - academic.oup.com
Background Cognitive impairment is a clinically important feature of schizophrenia.
Polygenic risk score (PRS) methods have demonstrated genetic overlap between …

Identification of novel genomic risk loci shared between common epilepsies and psychiatric disorders

N Karadag, AA Shadrin, KS O'Connell, GFL Hindley… - Brain, 2023 - academic.oup.com
Psychiatric disorders and common epilepsies are heritable disorders with a high comorbidity
and overlapping symptoms. However, the causative mechanisms underlying this …

Pleiotropic meta-analysis of cognition, education, and schizophrenia differentiates roles of early neurodevelopmental and adult synaptic pathways

M Lam, WD Hill, JW Trampush, J Yu, E Knowles… - The American Journal of …, 2019 - cell.com
Susceptibility to schizophrenia is inversely correlated with general cognitive ability at both
the phenotypic and the genetic level. Paradoxically, a modest but consistent positive genetic …

Identification of genetic loci jointly influencing schizophrenia risk and the cognitive traits of verbal-numerical reasoning, reaction time, and general cognitive function

OB Smeland, O Frei, K Kauppi, WD Hill, W Li… - JAMA …, 2017 - jamanetwork.com
Importance Schizophrenia is associated with widespread cognitive impairments. Although
cognitive deficits are one of the factors most strongly associated with functional outcome in …

Genetic overlap between schizophrenia and volumes of hippocampus, putamen, and intracranial volume indicates shared molecular genetic mechanisms

OB Smeland, Y Wang, O Frei, W Li… - Schizophrenia …, 2018 - academic.oup.com
Schizophrenia (SCZ) is associated with differences in subcortical brain volumes and
intracranial volume (ICV). However, little is known about the underlying etiology of these …