RT info:eu-repo/semantics/article T1 Genetic copy number variants, cognition and psychosis: a meta-analysis and a family study A1 Thygesen, Johan H. A1 Presman, Amelia A1 Harju-Seppänen, Jasmine A1 Irizar, Haritz A1 Jones, Rebecca A1 Kuchenbaecker, Karoline A1 Lin, Kuang A1 Alizadeh, Behrooz Z. A1 Austin-Zimmerman, Isabelle A1 Bartels-Velthuis, Agna A1 Bhat, Anjali A1 Bruggeman, Richard A1 Cahn, Wiepke A1 Calafato, Stella A1 Crespo-Facorro, Benedicto A1 de Haan, Liewe A1 de Zwarte, Sonja M. C. A1 Di Forti, Marta A1 Díez-Revuelta, Álvaro A1 Hall, Jeremy A1 Hall, Mei-Hua A1 Iyegbe, Conrad A1 Jablensky, Assen A1 Kahn, Rene A1 Kalaydjieva, Luba A1 Kravariti, Eugenia A1 Lawrie, Stephen A1 Luykx, Jurjen J. A1 Mata, Igancio A1 McDonald, Colm A1 McIntosh, Andrew M. A1 McQuillin, Andrew A1 Muir, Rebecca A1 Ophoff, Roel A1 Picchioni, Marco A1 Prata, Diana P. A1 Ranlund, Siri A1 Rujescu, Dan A1 Rutten, Bart P. F. A1 Schulze, Katja A1 Shaikh, Madiha A1 Schirmbeck, Frederike A1 Simons, Claudia J. P. A1 Toulopoulou, Timothea A1 van Amelsvoort, Therese A1 van Haren, Neeltje A1 van Os, Jim A1 van Winkel, Ruud A1 Vassos, Evangelos A1 Walshe, Muriel A1 Weisbrod, Matthias A1 Zartaloudi, Eirini A1 Bell, Vaughan A1 Powell, John A1 Lewis, Cathryn M. A1 Murray, Robin M. A1 Bramon, Elvira AB The burden of large and rare copy number genetic variants (CNVs) as well as certain specific CNVs increase the risk of developing schizophrenia. Several cognitive measures are purported schizophrenia endophenotypes and may represent an intermediate point between genetics and the illness. This paper investigates the influence of CNVs on cognition. We conducted a systematic review and meta-analysis of the literature exploring the effect of CNV burden on general intelligence. We included ten primary studies with a total of 18,847 participants and found no evidence of association. In a new psychosis family study, we investigated the effects of CNVs on specific cognitive abilities. We examined the burden of large and rare CNVs (>200 kb, <1% MAF) as well as known schizophrenia-associated CNVs in patients with psychotic disorders, their unaffected relatives and controls (N = 3428) from the Psychosis Endophenotypes International Consortium (PEIC). The carriers of specific schizophrenia-associated CNVs showed poorer performance than non-carriers in immediate (P = 0.0036) and delayed (P = 0.0115) verbal recall. We found suggestive evidence that carriers of schizophrenia-associated CNVs had poorer block design performance (P = 0.0307). We do not find any association between CNV burden and cognition. Our findings show that the known high-risk CNVs are not only associated with schizophrenia and other neurodevelopmental disorders, but are also a contributing factor to impairment in cognitive domains such as memory and perceptual reasoning, and act as intermediate biomarkers of disease risk. PB Nature SN 1359-4184 YR 2020 FD 2020 LK https://uvadoc.uva.es/handle/10324/66445 UL https://uvadoc.uva.es/handle/10324/66445 LA spa NO Molecular Psychiatry 26(9):5307-5319 DS UVaDOC RD 18-nov-2024