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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/218504
Schizophrenia polygenic risk score in psychosis proneness
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Schizophrenia (SZ) is a complex disorder with a highly polygenic inheritance. It can be conceived as the extreme expression of a continuum of traits that are present in the general population often broadly referred to as schizotypy. However, it is still poorly understood how these traits overlap genetically with the disorder. We investigated whether polygenic risk for SZ is associated with these disorder-related phenotypes (schizotypy, psychotic-like experiences, and subclinical psychopathology) in a sample of 253 non-clinically identified participants. Polygenic risk scores (PRSs) were constructed based on the latest SZ genome-wide association study using the PRS-CS method. Their association with self-report and interview measures of SZ-related traits was tested. No association with either schizotypy or psychotic-like experiences was found. However, we identified a significant association with the Motor Change subscale of the Comprehensive Assessment of At-Risk Mental States (CAARMS) interview. Our results indicate that the genetic overlap of SZ with schizotypy and psychotic-like experiences is less robust than previously hypothesized. The relationship between high PRS for SZ and motor abnormalities could reflect neurodevelopmental processes associated with psychosis proneness and SZ.
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MAS-BERMEJO, Patricia, PAPIOL, Sergi, VIA I GARCÍA, Marc, ROVIRA, Paula, TORRECILLA, Pilar, KWAPIL, Thomas r., BARRANTES-VIDAL, Neus, ROSA DE LA CRUZ, Araceli. Schizophrenia polygenic risk score in psychosis proneness. _European Archives of Psychiatry and Clinical Neuroscience_. 2023. Vol. 273, núm. 8, pàgs. 1665-1675. [consulta: 21 de gener de 2026]. ISSN: 0940-1334. [Disponible a: https://hdl.handle.net/2445/218504]