Author: "Vassos E" - Searchworks@Jio Institute Digital Library Search Results

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275 results on '"Vassos E"'

1. The influence of risk factors on the onset and outcome of psychosis: What we learned from the GAP study

Author: Murray, R.M., Mondelli, V., Stilo, S.A., Trotta, A., Sideli, L., Ajnakina, O., Ferraro, L., Vassos, E., Iyegbe, C., Schoeler, T., Bhattacharyya, S., Marques, T.R., Dazzan, P., Lopez-Morinigo, J., Colizzi, M., O'Connor, J., Falcone, M.A., Quattrone, D., Rodriguez, V., Tripoli, G., La Barbera, D., La Cascia, C., Alameda, L., Trotta, G., Morgan, C., Gaughran, F., David, A., and Di Forti, M.
Published: 2020
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2. First-Episode Psychosis Patients Who Deteriorated in the Premorbid Period Do Not Have Higher Polygenic Risk Scores Than Others: A Cluster Analysis of EU-GEI Data

Author: Ferraro, L, Quattrone, D, La Barbera, D, La Cascia, C, Morgan, C, Kirkbride, JB, Cardno, AG, Sham, P, Tripoli, G, Sideli, L, Seminerio, F, Sartorio, C, Szoke, A, Tarricone, I, Bernardo, M, Rodriguez, V, Stilo, SA, Gayer-Anderson, C, de Haan, L, Velthorst, E, Jongsma, H, Bart, RBP, Richards, A, Arango, C, Menezez, PR, Lasalvia, A, Tosato, S, Tortelli, A, Del Ben, CM, Selten, J-P, Jones, PB, van Os, J, The WP2 EU-GEI Group, Di Forti, M, Vassos, E, Murray, RM, Adult Psychiatry, APH - Mental Health, Amsterdam Neuroscience - Complex Trait Genetics, Amsterdam Neuroscience - Mood, Anxiety, Psychosis, Stress & Sleep, Ferraro, Laura, Quattrone, Diego, La Barbera, Daniele, La Cascia, Caterina, Morgan, Craig, Kirkbride, James B, Cardno, Alastair G, Sham, Pak, Tripoli, Giada, Sideli, Lucia, Seminerio, Fabio, Sartorio, Crocettarachele, Szoke, Andrei, Tarricone, Ilaria, Bernardo, Miquel, Rodriguez, Victoria, Stilo, Simona A, Gayer-Anderson, Charlotte, de Haan, Lieuwe, Velthorst, Eva, Jongsma, Hannah, Bart, Rutten B P, Richards, Alexander, Arango, Celso, Menezez, Paulo Rossi, Lasalvia, Antonio, Tosato, Sarah, Tortelli, Andrea, Del Ben, Cristina Marta, Selten, Jean-Paul, Jones, Peter B, van Os, Jim, Di Forti, Marta, Vassos, Evangelo, Murray, Robin M, Psychiatrie & Neuropsychologie, MUMC+: MA Psychiatrie (3), and RS: MHeNs - R3 - Neuroscience
Subjects: cannabis, cannabi, Adolescent, BIPOLAR DISORDER, ADJUSTMENT, GENE-ENVIRONMENT INTERACTIONS, CLASSIFICATION, bipolar, schizophrenia, Psychiatry and Mental health, Psychotic Disorders, Risk Factors, IQ, ONSET, premorbid, Humans, Cluster Analysis, GENOME-WIDE ASSOCIATION, TRAJECTORIES, deterioration
Abstract: Cluster studies identified a subgroup of patients with psychosis whose premorbid adjustment deteriorates before the onset, which may reflect variation in genetic influence. However, other studies reported a complex relationship between distinctive patterns of cannabis use and cognitive and premorbid impairment that is worthy of consideration. We examined whether: (1) premorbid social functioning (PSF) and premorbid academic functioning (PAF) in childhood and adolescence and current intellectual quotient (IQ) define different clusters in 802 first-episode of psychosis (FEP) patients; resulting clusters vary in (2) polygenic risk scores (PRSs) for schizophrenia (SCZ_PRS), bipolar disorder (BD_PRS), major depression (MD_PRS), and IQ (IQ_PRS), and (3) patterns of cannabis use, compared to 1,263 population-based controls. Four transdiagnostic clusters emerged (BIC = 2268.5): (1) high-cognitive-functioning (n = 205), with the highest IQ (Mean = 106.1, 95% CI: 104.3, 107.9) and PAF, but low PSF. (2) Low-cognitive-functioning (n = 223), with the lowest IQ (Mean = 73.9, 95% CI: 72.2, 75.7) and PAF, but normal PSF. (3) Intermediate (n = 224) (Mean_IQ = 80.8, 95% CI: 79.1, 82.5) with low-improving PAF and PSF. 4) Deteriorating (n = 150) (Mean_IQ = 80.6, 95% CI: 78.5, 82.7), with normal-deteriorating PAF and PSF. The PRSs explained 7.9% of between-group membership. FEP had higher SCZ_PRS than controls [F(4,1319) = 20.4, P
Published: 2022

3. Depression, anxiety and PTSD symptoms before and during the COVID-19 pandemic in the UK.

Author: Young, K. S., Purves, K. L., Hübel, C., Davies, M. R., Thompson, K. N., Bristow, S., Krebs, G., Danese, A., Hirsch, C., Parsons, C. E., Vassos, E., Adey, B. N., Bright, S., Hegemann, L., Lee, Y. T., Kalsi, G., Monssen, D., Mundy, J., Peel, A. J., and Rayner, C.
Subjects: POST-traumatic stress disorder, RETROSPECTIVE studies, PSYCHOLOGICAL tests, MENTAL depression, RESEARCH funding, QUESTIONNAIRES, ANXIETY, COVID-19 pandemic, LONGITUDINAL method
Abstract: Background: The impact of the coronavirus disease 2019 (COVID-19) pandemic on mental health is still being unravelled. It is important to identify which individuals are at greatest risk of worsening symptoms. This study aimed to examine changes in depression, anxiety and post-traumatic stress disorder (PTSD) symptoms using prospective and retrospective symptom change assessments, and to find and examine the effect of key risk factors. Method: Online questionnaires were administered to 34 465 individuals (aged 16 years or above) in April/May 2020 in the UK, recruited from existing cohorts or via social media. Around one-third (n = 12 718) of included participants had prior diagnoses of depression or anxiety and had completed pre-pandemic mental health assessments (between September 2018 and February 2020), allowing prospective investigation of symptom change. Results: Prospective symptom analyses showed small decreases in depression (PHQ-9: −0.43 points) and anxiety [generalised anxiety disorder scale – 7 items (GAD)-7: −0.33 points] and increases in PTSD (PCL-6: 0.22 points). Conversely, retrospective symptom analyses demonstrated significant large increases (PHQ-9: 2.40; GAD-7 = 1.97), with 55% reported worsening mental health since the beginning of the pandemic on a global change rating. Across both prospective and retrospective measures of symptom change, worsening depression, anxiety and PTSD symptoms were associated with prior mental health diagnoses, female gender, young age and unemployed/student status. Conclusions: We highlight the effect of prior mental health diagnoses on worsening mental health during the pandemic and confirm previously reported sociodemographic risk factors. Discrepancies between prospective and retrospective measures of changes in mental health may be related to recall bias-related underestimation of prior symptom severity. [ABSTRACT FROM AUTHOR]
Published: 2023
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4. Schizophrenia patients with high intelligence: A clinically distinct sub-type of schizophrenia?

Author: Černis, E., Vassos, E., Brébion, G., McKenna, P.J., Murray, R.M., David, A.S., and MacCabe, J.H.
Published: 2015
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5. Cannabis use as a potential mediator between childhood adversity and first-episode psychosis: results from the EU-GEI case-control study

Author: Trotta, G, Rodriguez, V, Quattrone, D, Spinazzola, E, Tripoli, G, Gayer-Anderson, C, Freeman, Tp, Jongsma, He, Sideli, L, Aas, M, Stilo, Sa, La Cascia, C, Ferraro, L, La Barbera, D, Lasalvia, A, Tosato, S, Tarricone, I, D'Andrea, G, Tortelli, A, Schurhoff, F, Szoke, A, Pignon, B, Selten, Jp, Velthorst, E, de Haan, L, Llorca, Pm, Menezes, Pr, Del Ben, Cm, Santos, Jl, Arrojo, M, Bobes, J, Sanjuan, J, Bernardo, M, Arango, C, Kirkbride, Jb, Jones, Pb, Richards, A, Rutten, Bp, Van Os, J, Austin-Zimmerman, I, Zk, Li, Morgan, C, Sham, Pc, Vassos, E, Wong, C, Bentall, R, Fisher, Hl, Murray, Rm, Alameda, L, and Di Forti, M
Subjects: trauma, psychotic disorders, childhood experience, mediation, Cannabis use
Published: 2023

6. Depression, anxiety and PTSD symptoms before and during the COVID-19 pandemic in the UK

Author: Young, K. S., primary, Purves, K. L., additional, Hübel, C., additional, Davies, M. R., additional, Thompson, K. N., additional, Bristow, S., additional, Krebs, G., additional, Danese, A., additional, Hirsch, C., additional, Parsons, C. E., additional, Vassos, E., additional, Adey, B. N., additional, Bright, S., additional, Hegemann, L., additional, Lee, Y. T., additional, Kalsi, G., additional, Monssen, D., additional, Mundy, J., additional, Peel, A. J., additional, Rayner, C., additional, Rogers, H. C., additional, ter Kuile, A., additional, Ward, C., additional, York, K., additional, Lin, Y., additional, Palmos, A. B., additional, Schmidt, U., additional, Veale, D., additional, Nicholson, T. R., additional, Pollak, T. A., additional, Stevelink, S. A. M., additional, Moukhtarian, T., additional, Martineau, A. R., additional, Holt, H., additional, Maughan, B., additional, Al-Chalabi, A., additional, Chaudhuri, K. Ray, additional, Richardson, M. P., additional, Bradley, J. R., additional, Chinnery, P. F., additional, Kingston, N., additional, Papadia, S., additional, Stirrups, K. E., additional, Linger, R., additional, Hotopf, M., additional, Eley, T. C., additional, and Breen, G., additional
Published: 2022
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7. Genetic variants associated with longitudinal changes in brain structure across the lifespan

Author: Brouwer, RM, Klein, M, Grasby, KL, Schnack, HG, Jahanshad, N, Teeuw, J, Thomopoulos, SI, Sprooten, E, Franz, CE, Gogtay, N, Kremen, WS, Panizzon, MS, Olde Loohuis, LM, Whelan, CD, Aghajani, M, Alloza, C, Alanaes, D, Artiges, E, Ayesa-Arriola, R, Barker, GJ, Bastin, ME, Blok, E, Boen, E, Breukelaar, IA, Bright, JK, Buimer, EEL, Bulow, R, Cannon, DM, Ciufolini, S, Crossley, NA, Damatac, CG, Dazzan, P, de Mol, CL, de Zwarte, SMC, Desrivieres, S, Diaz-Caneja, CM, Doan, NT, Dohm, K, Froehner, JH, Goltermann, J, Grigis, A, Grotegerd, D, Han, LKM, Harris, MA, Hartman, CA, Heany, SJ, Heindel, W, Heslenfeld, DJ, Hohmann, S, Ittermann, B, Jansen, PR, Janssen, J, Jia, T, Jiang, J, Jockwitz, C, Karali, T, Keeser, D, Koevoets, MGJC, Lenroot, RK, Malchow, B, Mandl, RCW, Medel, V, Meinert, S, Morgan, CA, Muehleisen, TW, Nabulsi, L, Opel, N, de la Foz, VO-G, Overs, BJ, Paillere Martinot, M-L, Redlich, R, Marques, TR, Repple, J, Roberts, G, Roshchupkin, GV, Setiaman, N, Shumskaya, E, Stein, F, Sudre, G, Takahashi, S, Thalamuthu, A, Tordesillas-Gutierrez, D, van der Lugt, A, van Haren, NEM, Wardlaw, JM, Wen, W, Westeneng, H-J, Wittfeld, K, Zhu, AH, Zugman, A, Armstrong, NJ, Bonfiglio, G, Bralten, J, Dalvie, S, Davies, G, Di Forti, M, Ding, L, Donohoe, G, Forstner, AJ, Gonzalez-Penas, J, Guimaraes, JPOFT, Homuth, G, Hottenga, J-J, Knol, MJ, Kwok, JBJ, Le Hellard, S, Mather, KA, Milaneschi, Y, Morris, DW, Noethen, MM, Papiol, S, Rietschel, M, Santoro, ML, Steen, VM, Stein, JL, Streit, F, Tankard, RM, Teumer, A, van 't Ent, D, van der Meer, D, van Eijk, KR, Vassos, E, Vazquez-Bourgon, J, Witt, SH, Adams, HHH, Agartz, I, Ames, D, Amunts, K, Andreassen, OA, Arango, C, Banaschewski, T, Baune, BT, Belangero, SI, Bokde, ALW, Boomsma, DI, Bressan, RA, Brodaty, H, Buitelaar, JK, Cahn, W, Caspers, S, Cichon, S, Crespo-Facorro, B, Cox, SR, Dannlowski, U, Elvsashagen, T, Espeseth, T, Falkai, PG, Fisher, SE, Flor, H, Fullerton, JM, Garavan, H, Gowland, PA, Grabe, HJ, Hahn, T, Heinz, A, Hillegers, M, Hoare, J, Hoekstra, PJ, Ikram, MA, Jackowski, AP, Jansen, A, Jonsson, EG, Kahn, RS, Kircher, T, Korgaonkar, MS, Krug, A, Lemaitre, H, Malt, UF, Martinot, J-L, McDonald, C, Mitchell, PB, Muetzel, RL, Murray, RM, Nees, F, Nenadic, I, Oosterlaan, J, Ophoff, RA, Pan, PM, Penninx, BWJH, Poustka, L, Sachdev, PS, Salum, GA, Schofield, PR, Schumann, G, Shaw, P, Sim, K, Smolka, MN, Stein, DJ, Trollor, JN, van den Berg, LH, Veldink, JH, Walter, H, Westlye, LT, Whelan, R, White, T, Wright, MJ, Medland, SE, Franke, B, Thompson, PM, Hulshoff Pol, HE, Brouwer, RM, Klein, M, Grasby, KL, Schnack, HG, Jahanshad, N, Teeuw, J, Thomopoulos, SI, Sprooten, E, Franz, CE, Gogtay, N, Kremen, WS, Panizzon, MS, Olde Loohuis, LM, Whelan, CD, Aghajani, M, Alloza, C, Alanaes, D, Artiges, E, Ayesa-Arriola, R, Barker, GJ, Bastin, ME, Blok, E, Boen, E, Breukelaar, IA, Bright, JK, Buimer, EEL, Bulow, R, Cannon, DM, Ciufolini, S, Crossley, NA, Damatac, CG, Dazzan, P, de Mol, CL, de Zwarte, SMC, Desrivieres, S, Diaz-Caneja, CM, Doan, NT, Dohm, K, Froehner, JH, Goltermann, J, Grigis, A, Grotegerd, D, Han, LKM, Harris, MA, Hartman, CA, Heany, SJ, Heindel, W, Heslenfeld, DJ, Hohmann, S, Ittermann, B, Jansen, PR, Janssen, J, Jia, T, Jiang, J, Jockwitz, C, Karali, T, Keeser, D, Koevoets, MGJC, Lenroot, RK, Malchow, B, Mandl, RCW, Medel, V, Meinert, S, Morgan, CA, Muehleisen, TW, Nabulsi, L, Opel, N, de la Foz, VO-G, Overs, BJ, Paillere Martinot, M-L, Redlich, R, Marques, TR, Repple, J, Roberts, G, Roshchupkin, GV, Setiaman, N, Shumskaya, E, Stein, F, Sudre, G, Takahashi, S, Thalamuthu, A, Tordesillas-Gutierrez, D, van der Lugt, A, van Haren, NEM, Wardlaw, JM, Wen, W, Westeneng, H-J, Wittfeld, K, Zhu, AH, Zugman, A, Armstrong, NJ, Bonfiglio, G, Bralten, J, Dalvie, S, Davies, G, Di Forti, M, Ding, L, Donohoe, G, Forstner, AJ, Gonzalez-Penas, J, Guimaraes, JPOFT, Homuth, G, Hottenga, J-J, Knol, MJ, Kwok, JBJ, Le Hellard, S, Mather, KA, Milaneschi, Y, Morris, DW, Noethen, MM, Papiol, S, Rietschel, M, Santoro, ML, Steen, VM, Stein, JL, Streit, F, Tankard, RM, Teumer, A, van 't Ent, D, van der Meer, D, van Eijk, KR, Vassos, E, Vazquez-Bourgon, J, Witt, SH, Adams, HHH, Agartz, I, Ames, D, Amunts, K, Andreassen, OA, Arango, C, Banaschewski, T, Baune, BT, Belangero, SI, Bokde, ALW, Boomsma, DI, Bressan, RA, Brodaty, H, Buitelaar, JK, Cahn, W, Caspers, S, Cichon, S, Crespo-Facorro, B, Cox, SR, Dannlowski, U, Elvsashagen, T, Espeseth, T, Falkai, PG, Fisher, SE, Flor, H, Fullerton, JM, Garavan, H, Gowland, PA, Grabe, HJ, Hahn, T, Heinz, A, Hillegers, M, Hoare, J, Hoekstra, PJ, Ikram, MA, Jackowski, AP, Jansen, A, Jonsson, EG, Kahn, RS, Kircher, T, Korgaonkar, MS, Krug, A, Lemaitre, H, Malt, UF, Martinot, J-L, McDonald, C, Mitchell, PB, Muetzel, RL, Murray, RM, Nees, F, Nenadic, I, Oosterlaan, J, Ophoff, RA, Pan, PM, Penninx, BWJH, Poustka, L, Sachdev, PS, Salum, GA, Schofield, PR, Schumann, G, Shaw, P, Sim, K, Smolka, MN, Stein, DJ, Trollor, JN, van den Berg, LH, Veldink, JH, Walter, H, Westlye, LT, Whelan, R, White, T, Wright, MJ, Medland, SE, Franke, B, Thompson, PM, and Hulshoff Pol, HE
Abstract: Human brain structure changes throughout the lifespan. Altered brain growth or rates of decline are implicated in a vast range of psychiatric, developmental and neurodegenerative diseases. In this study, we identified common genetic variants that affect rates of brain growth or atrophy in what is, to our knowledge, the first genome-wide association meta-analysis of changes in brain morphology across the lifespan. Longitudinal magnetic resonance imaging data from 15,640 individuals were used to compute rates of change for 15 brain structures. The most robustly identified genes GPR139, DACH1 and APOE are associated with metabolic processes. We demonstrate global genetic overlap with depression, schizophrenia, cognitive functioning, insomnia, height, body mass index and smoking. Gene set findings implicate both early brain development and neurodegenerative processes in the rates of brain changes. Identifying variants involved in structural brain changes may help to determine biological pathways underlying optimal and dysfunctional brain development and aging.
Published: 2022

8. P.0170 Distinct polygenic risk scores in clusters of psychotic subjects with different premorbid trajectories and current IQ

Author: Ferraro, L., Vassos, E., La Cascia, C., La Barbera, D., Tripoli, G., Sideli, L., Quattrone, D., Forti, M. Di, Murray, R. M., Ferraro, L., Vassos, E., La Cascia, C., La Barbera, D., Tripoli, G., Sideli, L., Quattrone, D., Forti, M. Di, and Murray, R.M.
Subjects: Pharmacology, Psychiatry and Mental health, Neurology, Pharmacology (medical), Neurology (clinical), polygenic risk score, psychosis, IQ, Biological Psychiatry
Published: 2021

9. Effects of copy number variations on brain structure and risk for psychiatric illness: Large-scale studies from the ENIGMA working groups on CNVs

Author: Sønderby, I.E., Ching, CRK, Thomopoulos, S.I., van der Meer, D., Sun, D., Villalon-Reina, J.E., Agartz, I., Amunts, K., Arango, C., Armstrong, N.J., Ayesa-Arriola, R., Bakker, G., Bassett, A.S., Boomsma, D.I., Bülow, R., Butcher, N.J., Calhoun, V.D., Caspers, S., Chow, EWC, Cichon, S., Ciufolini, S., Craig, M.C., Crespo-Facorro, B., Cunningham, A.C., Dale, A.M., Dazzan, P., de Zubicaray, G.I., Djurovic, S., Doherty, J.L., Donohoe, G., Draganski, B., Durdle, C.A., Ehrlich, S., Emanuel, B.S., Espeseth, T., Fisher, S.E., Ge, T., Glahn, D.C., Grabe, H.J., Gur, R.E., Gutman, B.A., Haavik, J., Håberg, A.K., Hansen, L.A., Hashimoto, R., Hibar, D.P., Holmes, A.J., Hottenga, J.J., Hulshoff Pol, H.E., Jalbrzikowski, M., Knowles, EEM, Kushan, L., Linden, DEJ, Liu, J., Lundervold, A.J., Martin-Brevet, S., Martínez, K., Mather, K.A., Mathias, S.R., McDonald-McGinn, D.M., McRae, A.F., Medland, S.E., Moberget, T., Modenato, C., Monereo Sánchez, J., Moreau, C.A., Mühleisen, T.W., Paus, T., Pausova, Z., Prieto, C., Ragothaman, A., Reinbold, C.S., Reis Marques, T., Repetto, G.M., Reymond, A., Roalf, D.R., Rodriguez-Herreros, B., Rucker, J.J., Sachdev, P.S., Schmitt, J.E., Schofield, P.R., Silva, A.I., Stefansson, H., Stein, D.J., Tamnes, C.K., Tordesillas-Gutiérrez, D., Ulfarsson, M.O., Vajdi, A., van 't Ent, D., van den Bree, MBM, Vassos, E., Vázquez-Bourgon, J., Vila-Rodriguez, F., Walters, G.B., Wen, W., Westlye, L.T., Wittfeld, K., Zackai, E.H., Stefánsson, K., Jacquemont, S., Thompson, P.M., Bearden, C.E., Andreassen, O.A., ENIGMA-CNV Working Group, ENIGMA 22q11.2 Deletion Syndrome Working Group, Bernard, M., Blackburn, N.B., Bøen, R., de Geus, E., de Zwarte, SMC, Forti, M.D., Frei, O., Fukunaga, M., Hehir-Kwa, J.Y., Hillegers, MHJ, Hoffmann, P., Homuth, G., Jahanshad, N., Koops, S., Kumar, K., Kikuchi, M., Le Hellard, S., Leu, C., Murray, R.M., Naerland, T., Nyberg, L., Ophoff, R.A., Pike, G.B., Sando, S.B., Shin, J., Shumskaya, E., Sisodiya, S.M., Steen, V.M., Teumer, A., Uhlmann, A., Wright, M.J., Antshel, K.M., Campbell, L.E., Crossley, N.A., Crowley, T.B., Daly, E., Fiksinski, A.M., Forsyth, J.K., Fremont, W., Goodrich-Hunsaker, N.J., Gudbrandsen, M., Jonas, R.K., Kates, W.R., Lin, A., McCabe, K.L., Moss, H., Murphy, D.G., Murphy, K.C., Owen, M.J., Ruparel, K., Simon, T.J., van Amelsvoort, T., and Vorstman, JAS
Subjects: brain structural imaging, copy number variant, diffusion tensor imaging, evolution, genetics-first approach, neurodevelopmental disorders, psychiatric disorders
Abstract: The Enhancing NeuroImaging Genetics through Meta-Analysis copy number variant (ENIGMA-CNV) and 22q11.2 Deletion Syndrome Working Groups (22q-ENIGMA WGs) were created to gain insight into the involvement of genetic factors in human brain development and related cognitive, psychiatric and behavioral manifestations. To that end, the ENIGMA-CNV WG has collated CNV and magnetic resonance imaging (MRI) data from ~49,000 individuals across 38 global research sites, yielding one of the largest studies to date on the effects of CNVs on brain structures in the general population. The 22q-ENIGMA WG includes 12 international research centers that assessed over 533 individuals with a confirmed 22q11.2 deletion syndrome, 40 with 22q11.2 duplications, and 333 typically developing controls, creating the largest-ever 22q11.2 CNV neuroimaging data set. In this review, we outline the ENIGMA infrastructure and procedures for multi-site analysis of CNVs and MRI data. So far, ENIGMA has identified effects of the 22q11.2, 16p11.2 distal, 15q11.2, and 1q21.1 distal CNVs on subcortical and cortical brain structures. Each CNV is associated with differences in cognitive, neurodevelopmental and neuropsychiatric traits, with characteristic patterns of brain structural abnormalities. Evidence of gene-dosage effects on distinct brain regions also emerged, providing further insight into genotype-phenotype relationships. Taken together, these results offer a more comprehensive picture of molecular mechanisms involved in typical and atypical brain development. This "genotype-first" approach also contributes to our understanding of the etiopathogenesis of brain disorders. Finally, we outline future directions to better understand effects of CNVs on brain structure and behavior.
Published: 2022

10. P.0171 The independent and joint effect of the endocannabinoid system and daily cannabis use on the risk of psychosis

Author: Quattrone, D., primary, Vassos, E., additional, Ferraro, L., additional, Tripoli, G., additional, Quattrone, A., additional, Reininghaus, U., additional, Murray, R., additional, and Forti, M. Di, additional
Published: 2021
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11. Common variant at 16p11.2 conferring risk of psychosis

Author: Steinberg, S, de Jong, S, Mattheisen, M, Costas, J, Demontis, D, Jamain, S, Pietiläinen, O P H, Lin, K, Papiol, S, Huttenlocher, J, Sigurdsson, E, Vassos, E, Giegling, I, Breuer, R, Fraser, G, Walker, N, Melle, I, Djurovic, S, Agartz, I, Tuulio-Henriksson, A, Suvisaari, J, Lönnqvist, J, Paunio, T, Olsen, L, Hansen, T, Ingason, A, Pirinen, M, Strengman, E, Hougaard, D M, Ørntoft, T, Didriksen, M, Hollegaard, M V, Nordentoft, M, Abramova, L, Kaleda, V, Arrojo, M, Sanjuán, J, Arango, C, Etain, B, Bellivier, F, Méary, A, Schürhoff, F, Szoke, A, Ribolsi, M, Magni, V, Siracusano, A, Sperling, S, Rossner, M, Christiansen, C, Kiemeney, L A, Franke, B, van den Berg, L H, Veldink, J, Curran, S, Bolton, P, Poot, M, Staal, W, Rehnstrom, K, Kilpinen, H, Freitag, C M, Meyer, J, Magnusson, P, Saemundsen, E, Martsenkovsky, I, Bikshaieva, I, Martsenkovska, I, Vashchenko, O, Raleva, M, Paketchieva, K, Stefanovski, B, Durmishi, N, Pejovic Milovancevic, M, Lecic Tosevski, D, Silagadze, T, Naneishvili, N, Mikeladze, N, Surguladze, S, Vincent, J B, Farmer, A, Mitchell, P B, Wright, A, Schofield, P R, Fullerton, J M, Montgomery, G W, Martin, N G, Rubino, I A, van Winkel, R, Kenis, G, De Hert, M, Réthelyi, J M, Bitter, I, Terenius, L, Jönsson, E G, Bakker, S, van Os, J, Jablensky, A, Leboyer, M, Bramon, E, Powell, J, Murray, R, Corvin, A, Gill, M, Morris, D, O'Neill, F A, Kendler, K, Riley, B, Craddock, N, Owen, M J, O'Donovan, M C, Thorsteinsdottir, U, Kong, A, Ehrenreich, H, Carracedo, A, Golimbet, V, Andreassen, O A, Børglum, A D, Mors, O, Mortensen, P B, Werge, T, Ophoff, R A, Nöthen, M M, Rietschel, M, Cichon, S, Ruggeri, M, Tosato, S, Palotie, A, St Clair, D, Rujescu, D, Collier, D A, Stefansson, H, and Stefansson, K
Published: 2014
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12. Impact of childhood adversities on specific symptom dimensions in first-episode psychosis

Author: Ajnakina, O., Trotta, A., Oakley-Hannibal, E., Di Forti, M., Stilo, S. A., Kolliakou, A., Gardner-Sood, P., Gaughran, F., David, A. S., Dazzan, P., Pariante, C., Mondelli, V., Morgan, C., Vassos, E., Murray, R. M., and Fisher, H. L.
Published: 2016
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13. GENE AND ENVIRONMENT INTERPLAY AMONG DIAGNOSTIC CATEGORIES IN THE EUGEI STUDY

Author: Rodriguez, V, Alameda, L, Quattrone, D, Tripoli, G, Gayer-Anderson, C, Morgan, C, Di Forti, M, Vassos, E, Murray, R, Rodriguez, V, Alameda, L, Quattrone, D, Tripoli, G, Gayer-Anderson, C, Morgan, C, Di Forti, M, Vassos, E, and Murray, R
Subjects: schizophrenia, bipolar, GxE
Published: 2020

14. Daily use of high-potency cannabis is associated with more positive symptoms in first-episode psychosis patients: The EU-GEI case-control study

Author: Quattrone, D, Ferraro, L, Tripoli, G, La Cascia, C, Quigley, H, Quattrone, A, Jongsma, HE, Del Peschio, S, Gatto, G, EU-GEI group, Gayer-Anderson, C, Jones, PB, Kirkbride, JB, La Barbera, D, Tarricone, I, Berardi, D, Tosato, S, Lasalvia, A, Szöke, A, Arango, C, Bernardo, M, Bobes, J, Del Ben, CM, Menezes, PR, Llorca, P-M, Santos, JL, Sanjuán, J, Tortelli, A, Velthorst, E, de Haan, L, Rutten, BPF, Lynskey, MT, Freeman, TP, Sham, PC, Cardno, AG, Vassos, E, van Os, J, Morgan, C, Reininghaus, U, Lewis, CM, Murray, RM, Di Forti, M, Adult Psychiatry, ANS - Complex Trait Genetics, ANS - Mood, Anxiety, Psychosis, Stress & Sleep, APH - Mental Health, Quattrone, Diego [0000-0002-6051-8309], Apollo - University of Cambridge Repository, Quattrone D., Ferraro L., Tripoli G., La Cascia C., Quigley H., Quattrone A., Jongsma H.E., Del Peschio S., Gatto G., EU-GEI group, Gayer-Anderson C., Jones P.B., Kirkbride J.B., La Barbera D., Tarricone I., Berardi D., Tosato S., Lasalvia A., Szoke A., Arango C., Bernardo M., Bobes J., Del Ben C.M., Menezes P.R., Llorca P.-M., Santos J.L., Sanjuan J., Tortelli A., Velthorst E., De Haan L., Rutten B.P.F., Lynskey M.T., Freeman T.P., Sham P.C., Cardno A.G., Vassos E., Van Os J., Morgan C., Reininghaus U., Lewis C.M., Murray R.M., Di Forti M., RS: MHeNs - R3 - Neuroscience, Psychiatrie & Neuropsychologie, MUMC+: MA Psychiatrie (3), RS: MHeNs - R2 - Mental Health, and MUMC+: Hersen en Zenuw Centrum (3)
Subjects: Marijuana Abuse, IMPACT, Poison control, Cannabis use, cannabis-associated psychosis, 0302 clinical medicine, SCHIZOPHRENIA, Settore MED/48 -Scienze Infermierist. e Tecn. Neuro-Psichiatriche e Riabilitat, health care economics and organizations, Applied Psychology, RISK, OUTCOMES, biology, Human factors and ergonomics, psychopathology, first episode psychosis, psychotic experiences, symptom dimensions, 3. Good health, Psychiatry and Mental health, Schizophrenia, HEALTH, Psychopathology, Psychosis, medicine.medical_specialty, DISORDERS, education, 03 medical and health sciences, Injury prevention, medicine, Humans, Psychiatry, ABUSE, Settore MED/25 - Psichiatria, SUBSTANCE USE, METAANALYSIS, Cannabis, business.industry, Case-control study, Original Articles, medicine.disease, biology.organism_classification, 030227 psychiatry, psychotic experience, Psychotic Disorders, first episode psychosi, Case-Control Studies, ONSET, Gene-Environment Interaction, business, cannabis-associated psychosi, 030217 neurology & neurosurgery
Abstract: The work was supported by: Clinician Scientist Medical Research Council fellowship (project reference MR/M008436/1) to MDF; the National Institute for Health Research (NIHR) Collaboration for Leadership in Applied Health Research and Care South London at King’s College Hospital NHS Foundation Trust to DQ; DFG Heisenberg professorship (no. 389624707) to UR. National Institute for Health Research (NIHR) Biomedical Research Centre for Mental Health at South London and Maudsley NHS Foundation Trust and King’s College London. The views expressed are those of the author(s) and not necessarily those of the NHS, the NIHR or the Department of Health and Social Care. The EU-GEI Project is funded by the European Community’s Seventh Framework Programme under grant agreement No. HEALTH-F2-2010-241909 (Project EU-GEI). The Brazilian study was funded by the São Paulo Research Foundation under grant number 2012/0417-0., Quattrone, D., Ferraro, L., Tripoli, G., La Cascia, C., Quigley, H., Quattrone, A., Jongsma, H.E., Del Peschio, S., Gatto, G., Gayer-Anderson, C., Jones, P.B., Kirkbride, J.B., La Barbera, D., Tarricone, I., Berardi, D., Tosato, S., Lasalvia, A., Szöke, A., Arango, C., Bernardo, M., Bobes, J., Del Ben, C.M., Menezes, P.R., Llorca, P.-M., Santos, J.L., Sanjuán, J., Tortelli, A., Velthorst, E., De Haan, L., Rutten, B.P.F., Lynskey, M.T., Freeman, T.P., Sham, P.C., Cardno, A.G., Vassos, E., Van Os, J., Morgan, C., Reininghaus, U., Lewis, C.M., Murray, R.M., Di Forti, M.
Published: 2020

15. Duration of Untreated Psychosis in First-Episode Psychosis is not Associated With Common Genetic Variants for Major Psychiatric Conditions: Results From the Multi-Center EU-GEI Study

Author: Ajnakina O, Rodriguez V, Quattrone D, di Forti M, Vassos E, Arango C, Berardi D, Bernardo M, Bobes J, de Haan L, Del-Ben C, Gayer-Anderson C, Jongsma H, Lasalvia A, Tosato S, Llorca P, Menezes P, Rutten B, Santos J, Sanjuan J, Selten J, Szoke A, Tarricone I, D'Andrea G, Richards A, Tortelli A, Velthorst E, Jones P, Arrojo Romero M, La Cascia C, Kirkbride J, van Os J, O'Donovan M, Murray R, and EU-GEI WP2 Group
Subjects: congenital, hereditary, and neonatal diseases and abnormalities, lipids (amino acids, peptides, and proteins)
Abstract: Duration of untreated psychosis (DUP) is associated with clinical outcomes in people with a diagnosis of first-episode psychosis (FEP), but factors associated with length of DUP are still poorly understood. Aiming to obtain insights into the possible biological impact on DUP, we report genetic analyses of a large multi-center phenotypically well-defined sample encompassing individuals with a diagnosis of FEP recruited from 6 countries spanning 17 research sites, as part of the European Network of National Schizophrenia Networks Studying Gene-Environment Interactions (EU-GEI) study. Genetic propensity was measured using polygenic scores for schizophrenia (SZ-PGS), bipolar disorder (BD-PGS), major depressive disorder (MDD-PGS), and intelligence (IQ-PGS), which were calculated based on the results from the most recent genome-wide association meta-analyses. Following imputation for missing data and log transformation of DUP to handle skewedness, the association between DUP and polygenic scores (PGS), adjusting for important confounders, was investigated with multivariable linear regression models. The sample comprised 619 individuals with a diagnosis of FEP disorders with a median age at first contact of 29.0 years (interquartile range [IQR] = 22.0-38.0). The median length of DUP in the sample was 10.1 weeks (IQR = 3.8-30.8). One SD increases in SZ-PGS, BD-PGS, MDD-PGS or IQ-PGS were not significantly associated with the length of DUP. Our results suggest that genetic variation does not contribute to the DUP in patients with a diagnosis of FEP disorders. © Crown copyright 2021.
Published: 2021

16. 1q21.1 distal copy number variants are associated with cerebral and cognitive alterations in humans

Author: Sønderby, I.E., van der Meer, D., Moreau, C., Kaufmann, T., Walters, G.B., Ellegaard, M., Abdellaoui, A., Ames, D., Amunts, K., Andersson, M., Armstrong, N.J., Bernard, M., Blackburn, N.B., Blangero, J., Boomsma, D.I., Brodaty, H., Brouwer, R.M., Bülow, R., Bøen, R., Cahn, W., Calhoun, V.D., Caspers, S., Ching, C.R.K., Cichon, S., Ciufolini, S., Crespo-Facorro, B., Curran, J.E., Dale, A.M., Dalvie, S., Dazzan, P., de Geus, E.J.C., de Zubicaray, G.I., de Zwarte, S.M.C., Desrivières, S., Doherty, J.L., Donohoe, G., Draganski, B., Ehrlich, S., Eising, E., Espeseth, T., Fejgin, K., Fisher, S.E., Fladby, T., Frei, O., Frouin, V., Fukunaga, M., Gareau, T., Ge, T., Glahn, D.C., Grabe, H.J., Groenewold, N.A., Gústafsson, Ó., Haavik, J., Håberg, A.K., Hall, J., Hashimoto, R., Hehir-Kwa, J.Y., Hibar, D.P., Hillegers, M.H.J., Hoffmann, P., Holleran, L., Holmes, A.J., Homuth, G., Hottenga, J-J, Hulshoff Pol, H.E., Ikeda, M., Jahanshad, N., Jockwitz, C., Johansson, S., Jönsson, E.G., Jørgensen, N.R., Kikuchi, M., Knowles, E.E.M., Kumar, K., Le Hellard, S., Leu, C., Linden, D.E.J., Liu, J., Lundervold, A., Lundervold, A.J., Maillard, A.M., Martin, N.G., Martin-Brevet, S., Mather, K.A., Mathias, S.R., McMahon, K.L., McRae, A.F., Medland, S.E., Meyer-Lindenberg, A., Moberget, T., Modenato, C., Sánchez, J.M., Morris, D.W., Mühleisen, T.W., Murray, R.M., Nielsen, J., Nordvik, J.E., Nyberg, L., Loohuis, L.M.O., Ophoff, R.A., Owen, M.J., Paus, T., Pausova, Z., Peralta, J.M., Pike, G.B., Prieto, C., Quinlan, E.B., Reinbold, C.S., Marques, T.R., Rucker, J.J.H., Sachdev, P.S., Sando, S.B., Schofield, P.R., Schork, A.J., Schumann, G., Shin, J., Shumskaya, E., Silva, A.I., Sisodiya, S.M., Steen, V.M., Stein, D.J., Strike, L.T., Suzuki, I.K., Tamnes, C.K., Teumer, A., Thalamuthu, A., Tordesillas-Gutierrez, D., Uhlmann, A., Ulfarsson, M.O., van ‘t Ent, D., van den Bree, M.B.M., Vanderhaeghen, P., Vassos, E., Wen, W., Wittfeld, K., Wright, M.J., Agartz, I., Djurovic, S., Westlye, L.T., Stefánsson, H., Stefánsson, K., Jacquemont, S., Thompson, P.M., Andreassen, O.A., Sønderby, I.E., van der Meer, D., Moreau, C., Kaufmann, T., Walters, G.B., Ellegaard, M., Abdellaoui, A., Ames, D., Amunts, K., Andersson, M., Armstrong, N.J., Bernard, M., Blackburn, N.B., Blangero, J., Boomsma, D.I., Brodaty, H., Brouwer, R.M., Bülow, R., Bøen, R., Cahn, W., Calhoun, V.D., Caspers, S., Ching, C.R.K., Cichon, S., Ciufolini, S., Crespo-Facorro, B., Curran, J.E., Dale, A.M., Dalvie, S., Dazzan, P., de Geus, E.J.C., de Zubicaray, G.I., de Zwarte, S.M.C., Desrivières, S., Doherty, J.L., Donohoe, G., Draganski, B., Ehrlich, S., Eising, E., Espeseth, T., Fejgin, K., Fisher, S.E., Fladby, T., Frei, O., Frouin, V., Fukunaga, M., Gareau, T., Ge, T., Glahn, D.C., Grabe, H.J., Groenewold, N.A., Gústafsson, Ó., Haavik, J., Håberg, A.K., Hall, J., Hashimoto, R., Hehir-Kwa, J.Y., Hibar, D.P., Hillegers, M.H.J., Hoffmann, P., Holleran, L., Holmes, A.J., Homuth, G., Hottenga, J-J, Hulshoff Pol, H.E., Ikeda, M., Jahanshad, N., Jockwitz, C., Johansson, S., Jönsson, E.G., Jørgensen, N.R., Kikuchi, M., Knowles, E.E.M., Kumar, K., Le Hellard, S., Leu, C., Linden, D.E.J., Liu, J., Lundervold, A., Lundervold, A.J., Maillard, A.M., Martin, N.G., Martin-Brevet, S., Mather, K.A., Mathias, S.R., McMahon, K.L., McRae, A.F., Medland, S.E., Meyer-Lindenberg, A., Moberget, T., Modenato, C., Sánchez, J.M., Morris, D.W., Mühleisen, T.W., Murray, R.M., Nielsen, J., Nordvik, J.E., Nyberg, L., Loohuis, L.M.O., Ophoff, R.A., Owen, M.J., Paus, T., Pausova, Z., Peralta, J.M., Pike, G.B., Prieto, C., Quinlan, E.B., Reinbold, C.S., Marques, T.R., Rucker, J.J.H., Sachdev, P.S., Sando, S.B., Schofield, P.R., Schork, A.J., Schumann, G., Shin, J., Shumskaya, E., Silva, A.I., Sisodiya, S.M., Steen, V.M., Stein, D.J., Strike, L.T., Suzuki, I.K., Tamnes, C.K., Teumer, A., Thalamuthu, A., Tordesillas-Gutierrez, D., Uhlmann, A., Ulfarsson, M.O., van ‘t Ent, D., van den Bree, M.B.M., Vanderhaeghen, P., Vassos, E., Wen, W., Wittfeld, K., Wright, M.J., Agartz, I., Djurovic, S., Westlye, L.T., Stefánsson, H., Stefánsson, K., Jacquemont, S., Thompson, P.M., and Andreassen, O.A.
Abstract: Low-frequency 1q21.1 distal deletion and duplication copy number variant (CNV) carriers are predisposed to multiple neurodevelopmental disorders, including schizophrenia, autism and intellectual disability. Human carriers display a high prevalence of micro- and macrocephaly in deletion and duplication carriers, respectively. The underlying brain structural diversity remains largely unknown. We systematically called CNVs in 38 cohorts from the large-scale ENIGMA-CNV collaboration and the UK Biobank and identified 28 1q21.1 distal deletion and 22 duplication carriers and 37,088 non-carriers (48% male) derived from 15 distinct magnetic resonance imaging scanner sites. With standardized methods, we compared subcortical and cortical brain measures (all) and cognitive performance (UK Biobank only) between carrier groups also testing for mediation of brain structure on cognition. We identified positive dosage effects of copy number on intracranial volume (ICV) and total cortical surface area, with the largest effects in frontal and cingulate cortices, and negative dosage effects on caudate and hippocampal volumes. The carriers displayed distinct cognitive deficit profiles in cognitive tasks from the UK Biobank with intermediate decreases in duplication carriers and somewhat larger in deletion carriers—the latter potentially mediated by ICV or cortical surface area. These results shed light on pathobiological mechanisms of neurodevelopmental disorders, by demonstrating gene dose effect on specific brain structures and effect on cognitive function.
Published: 2021

17. Effects of copy number variations on brain structure and risk for psychiatric illness: Large‐scale studies from the ENIGMA working groups on CNVs

Author: Sønderby, I.E., Ching, C.R.K., Thomopoulos, S.I., Meer, D., Sun, D., Villalon‐Reina, J.E., Agartz, I., Amunts, K., Arango, C., Armstrong, N.J., Ayesa‐Arriola, R., Bakker, G., Bassett, A.S., Boomsma, D.I., Bülow, R., Butcher, N.J., Calhoun, V.D., Caspers, S., Chow, E.W.C., Cichon, S., Ciufolini, S., Craig, M.C., Crespo‐Facorro, B., Cunningham, A.C., Dale, A.M., Dazzan, P., Zubicaray, G.I., Djurovic, S., Doherty, J.L., Donohoe, G., Draganski, B., Durdle, C.A., Ehrlich, S., Emanuel, B.S., Espeseth, T., Fisher, S.E., Ge, T., Glahn, D.C., Grabe, H.J., Gur, R.E., Gutman, B.A., Haavik, J., Håberg, A.K., Hansen, L.A., Hashimoto, R., Hibar, D.P., Holmes, A.J., Hottenga, J‐J, Hulshoff Pol, H.E., Jalbrzikowski, M., Knowles, E.E.M., Kushan, L., Linden, D.E.J., Liu, J., Lundervold, A.J., Martin‐Brevet, S., Martinez, K., Mather, K.A., Mathias, S.R., McDonald‐McGinn, D.M., McRae, A.F., Medland, S.E., Moberget, T., Modenato, C., Monereo Sánchez, J., Moreau, C.A., Mühleisen, T.W., Paus, T., Pausova, Z., Prieto, C., Ragothaman, A., Reinbold, C.S., Reis Marques, T., Repetto, G.M., Reymond, A., Roalf, D.R., Rodriguez‐Herreros, B., Rucker, J.J., Sachdev, P.S., Schmitt, J.E., Schofield, P.R., Silva, A.I., Stefánsson, H., Stein, D.J., Tamnes, C.K., Tordesillas‐Gutiérrez, D., Ulfarsson, M.O., Vajdi, A., Ent, D., Bree, M.B.M., Vassos, E., Vázquez‐Bourgon, J., Vila‐Rodriguez, F., Walters, G.B., Wen, W., Westlye, L.T., Wittfeld, K., Zackai, E.H., Stefánsson, K., Jacquemont, S., Thompson, P.M., Bearden, C.E., Andreassen, O.A., Sønderby, I.E., Ching, C.R.K., Thomopoulos, S.I., Meer, D., Sun, D., Villalon‐Reina, J.E., Agartz, I., Amunts, K., Arango, C., Armstrong, N.J., Ayesa‐Arriola, R., Bakker, G., Bassett, A.S., Boomsma, D.I., Bülow, R., Butcher, N.J., Calhoun, V.D., Caspers, S., Chow, E.W.C., Cichon, S., Ciufolini, S., Craig, M.C., Crespo‐Facorro, B., Cunningham, A.C., Dale, A.M., Dazzan, P., Zubicaray, G.I., Djurovic, S., Doherty, J.L., Donohoe, G., Draganski, B., Durdle, C.A., Ehrlich, S., Emanuel, B.S., Espeseth, T., Fisher, S.E., Ge, T., Glahn, D.C., Grabe, H.J., Gur, R.E., Gutman, B.A., Haavik, J., Håberg, A.K., Hansen, L.A., Hashimoto, R., Hibar, D.P., Holmes, A.J., Hottenga, J‐J, Hulshoff Pol, H.E., Jalbrzikowski, M., Knowles, E.E.M., Kushan, L., Linden, D.E.J., Liu, J., Lundervold, A.J., Martin‐Brevet, S., Martinez, K., Mather, K.A., Mathias, S.R., McDonald‐McGinn, D.M., McRae, A.F., Medland, S.E., Moberget, T., Modenato, C., Monereo Sánchez, J., Moreau, C.A., Mühleisen, T.W., Paus, T., Pausova, Z., Prieto, C., Ragothaman, A., Reinbold, C.S., Reis Marques, T., Repetto, G.M., Reymond, A., Roalf, D.R., Rodriguez‐Herreros, B., Rucker, J.J., Sachdev, P.S., Schmitt, J.E., Schofield, P.R., Silva, A.I., Stefánsson, H., Stein, D.J., Tamnes, C.K., Tordesillas‐Gutiérrez, D., Ulfarsson, M.O., Vajdi, A., Ent, D., Bree, M.B.M., Vassos, E., Vázquez‐Bourgon, J., Vila‐Rodriguez, F., Walters, G.B., Wen, W., Westlye, L.T., Wittfeld, K., Zackai, E.H., Stefánsson, K., Jacquemont, S., Thompson, P.M., Bearden, C.E., and Andreassen, O.A.
Abstract: The Enhancing NeuroImaging Genetics through Meta‐Analysis copy number variant (ENIGMA‐CNV) and 22q11.2 Deletion Syndrome Working Groups (22q‐ENIGMA WGs) were created to gain insight into the involvement of genetic factors in human brain development and related cognitive, psychiatric and behavioral manifestations. To that end, the ENIGMA‐CNV WG has collated CNV and magnetic resonance imaging (MRI) data from ~49,000 individuals across 38 global research sites, yielding one of the largest studies to date on the effects of CNVs on brain structures in the general population. The 22q‐ENIGMA WG includes 12 international research centers that assessed over 533 individuals with a confirmed 22q11.2 deletion syndrome, 40 with 22q11.2 duplications, and 333 typically developing controls, creating the largest‐ever 22q11.2 CNV neuroimaging data set. In this review, we outline the ENIGMA infrastructure and procedures for multi‐site analysis of CNVs and MRI data. So far, ENIGMA has identified effects of the 22q11.2, 16p11.2 distal, 15q11.2, and 1q21.1 distal CNVs on subcortical and cortical brain structures. Each CNV is associated with differences in cognitive, neurodevelopmental and neuropsychiatric traits, with characteristic patterns of brain structural abnormalities. Evidence of gene‐dosage effects on distinct brain regions also emerged, providing further insight into genotype–phenotype relationships. Taken together, these results offer a more comprehensive picture of molecular mechanisms involved in typical and atypical brain development. This “genotype‐first” approach also contributes to our understanding of the etiopathogenesis of brain disorders. Finally, we outline future directions to better understand effects of CNVs on brain structure and behavior.
Published: 2021

18. 1q21.1 distal copy number variants are associated with cerebral and cognitive alterations in humans

Author: Sonderby, IE, van der Meer, D, Moreau, C, Kaufmann, T, Walters, GB, Ellegaard, M, Abdellaoui, A, Ames, D, Amunts, K, Andersson, M, Armstrong, NJ, Bernard, M, Blackburn, NB, Blangero, J, Boomsma, DI, Brodaty, H, Brouwer, RM, Buelow, R, Boen, R, Cahn, W, Calhoun, VD, Caspers, S, Ching, CRK, Cichon, S, Ciufolini, S, Crespo-Facorro, B, Curran, JE, Dale, AM, Dalvie, S, Dazzan, P, de Geus, EJC, de Zubicaray, GI, de Zwarte, SMC, Desrivieres, S, Doherty, JL, Donohoe, G, Draganski, B, Ehrlich, S, Eising, E, Espeseth, T, Fejgin, K, Fisher, SE, Fladby, T, Frei, O, Frouin, V, Fukunaga, M, Gareau, T, Ge, T, Glahn, DC, Grabe, HJ, Groenewold, NA, Gustafsson, O, Haavik, J, Haberg, AK, Hall, J, Hashimoto, R, Hehir-Kwa, JY, Hibar, DP, Hillegers, MHJ, Hoffmann, P, Holleran, L, Holmes, AJ, Homuth, G, Hottenga, J-J, Hulshoff Pol, HE, Ikeda, M, Jahanshad, N, Jockwitz, C, Johansson, S, Joensson, EG, Jorgensen, NR, Kikuchi, M, Knowles, EEM, Kumar, K, Le Hellard, S, Leu, C, Linden, DEJ, Liu, J, Lundervold, A, Lundervold, AJ, Maillard, AM, Martin, NG, Martin-Brevet, S, Mather, KA, Mathias, SR, McMahon, KL, McRae, AF, Medland, SE, Meyer-Lindenberg, A, Moberget, T, Modenato, C, Sanchez, JM, Morris, DW, Muehleisen, TW, Murray, RM, Nielsen, J, Nordvik, JE, Nyberg, L, Loohuis, LMO, Ophoff, RA, Owen, MJ, Paus, T, Pausova, Z, Peralta, JM, Pike, GB, Prieto, C, Quinlan, EB, Reinbold, CS, Marques, TR, Rucker, JJH, Sachdev, PS, Sando, SB, Schofield, PR, Schork, AJ, Schumann, G, Shin, J, Shumskaya, E, Silva, AI, Sisodiya, SM, Steen, VM, Stein, DJ, Strike, LT, Suzuki, IK, Tamnes, CK, Teumer, A, Thalamuthu, A, Tordesillas-Gutierrez, D, Uhlmann, A, Ulfarsson, MO, van 't Ent, D, van den Bree, MBM, Vanderhaeghen, P, Vassos, E, Wen, W, Wittfeld, K, Wright, MJ, Agartz, I, Djurovic, S, Westlye, LT, Stefansson, H, Stefansson, K, Jacquemont, S, Thompson, PM, Andreassen, OA, Sonderby, IE, van der Meer, D, Moreau, C, Kaufmann, T, Walters, GB, Ellegaard, M, Abdellaoui, A, Ames, D, Amunts, K, Andersson, M, Armstrong, NJ, Bernard, M, Blackburn, NB, Blangero, J, Boomsma, DI, Brodaty, H, Brouwer, RM, Buelow, R, Boen, R, Cahn, W, Calhoun, VD, Caspers, S, Ching, CRK, Cichon, S, Ciufolini, S, Crespo-Facorro, B, Curran, JE, Dale, AM, Dalvie, S, Dazzan, P, de Geus, EJC, de Zubicaray, GI, de Zwarte, SMC, Desrivieres, S, Doherty, JL, Donohoe, G, Draganski, B, Ehrlich, S, Eising, E, Espeseth, T, Fejgin, K, Fisher, SE, Fladby, T, Frei, O, Frouin, V, Fukunaga, M, Gareau, T, Ge, T, Glahn, DC, Grabe, HJ, Groenewold, NA, Gustafsson, O, Haavik, J, Haberg, AK, Hall, J, Hashimoto, R, Hehir-Kwa, JY, Hibar, DP, Hillegers, MHJ, Hoffmann, P, Holleran, L, Holmes, AJ, Homuth, G, Hottenga, J-J, Hulshoff Pol, HE, Ikeda, M, Jahanshad, N, Jockwitz, C, Johansson, S, Joensson, EG, Jorgensen, NR, Kikuchi, M, Knowles, EEM, Kumar, K, Le Hellard, S, Leu, C, Linden, DEJ, Liu, J, Lundervold, A, Lundervold, AJ, Maillard, AM, Martin, NG, Martin-Brevet, S, Mather, KA, Mathias, SR, McMahon, KL, McRae, AF, Medland, SE, Meyer-Lindenberg, A, Moberget, T, Modenato, C, Sanchez, JM, Morris, DW, Muehleisen, TW, Murray, RM, Nielsen, J, Nordvik, JE, Nyberg, L, Loohuis, LMO, Ophoff, RA, Owen, MJ, Paus, T, Pausova, Z, Peralta, JM, Pike, GB, Prieto, C, Quinlan, EB, Reinbold, CS, Marques, TR, Rucker, JJH, Sachdev, PS, Sando, SB, Schofield, PR, Schork, AJ, Schumann, G, Shin, J, Shumskaya, E, Silva, AI, Sisodiya, SM, Steen, VM, Stein, DJ, Strike, LT, Suzuki, IK, Tamnes, CK, Teumer, A, Thalamuthu, A, Tordesillas-Gutierrez, D, Uhlmann, A, Ulfarsson, MO, van 't Ent, D, van den Bree, MBM, Vanderhaeghen, P, Vassos, E, Wen, W, Wittfeld, K, Wright, MJ, Agartz, I, Djurovic, S, Westlye, LT, Stefansson, H, Stefansson, K, Jacquemont, S, Thompson, PM, and Andreassen, OA
Abstract: Low-frequency 1q21.1 distal deletion and duplication copy number variant (CNV) carriers are predisposed to multiple neurodevelopmental disorders, including schizophrenia, autism and intellectual disability. Human carriers display a high prevalence of micro- and macrocephaly in deletion and duplication carriers, respectively. The underlying brain structural diversity remains largely unknown. We systematically called CNVs in 38 cohorts from the large-scale ENIGMA-CNV collaboration and the UK Biobank and identified 28 1q21.1 distal deletion and 22 duplication carriers and 37,088 non-carriers (48% male) derived from 15 distinct magnetic resonance imaging scanner sites. With standardized methods, we compared subcortical and cortical brain measures (all) and cognitive performance (UK Biobank only) between carrier groups also testing for mediation of brain structure on cognition. We identified positive dosage effects of copy number on intracranial volume (ICV) and total cortical surface area, with the largest effects in frontal and cingulate cortices, and negative dosage effects on caudate and hippocampal volumes. The carriers displayed distinct cognitive deficit profiles in cognitive tasks from the UK Biobank with intermediate decreases in duplication carriers and somewhat larger in deletion carriers-the latter potentially mediated by ICV or cortical surface area. These results shed light on pathobiological mechanisms of neurodevelopmental disorders, by demonstrating gene dose effect on specific brain structures and effect on cognitive function.
Published: 2021

19. Expanding the range of ZNF804A variants conferring risk of psychosis

Author: Steinberg, S, Mors, O, Børglum, A D, Gustafsson, O, Werge, T, Mortensen, P B, Andreassen, O A, Sigurdsson, E, Thorgeirsson, T E, Böttcher, Y, Olason, P, Ophoff, R A, Cichon, S, Gudjonsdottir, I H, Pietiläinen, O P H, Nyegaard, M, Tuulio-Henriksson, A, Ingason, A, Hansen, T, Athanasiu, L, Suvisaari, J, Lonnqvist, J, Paunio, T, Hartmann, A, Jürgens, G, Nordentoft, M, Hougaard, D, Norgaard-Pedersen, B, Breuer, R, Möller, H-J, Giegling, I, Glenthøj, B, Rasmussen, H B, Mattheisen, M, Bitter, I, Réthelyi, J M, Sigmundsson, T, Fossdal, R, Thorsteinsdottir, U, Ruggeri, M, Tosato, S, Strengman, E, Kiemeney, L A, Melle, I, Djurovic, S, Abramova, L, Kaleda, V, Walshe, M, Bramon, E, Vassos, E, Li, T, Fraser, G, Walker, N, Toulopoulou, T, Yoon, J, Freimer, N B, Cantor, R M, Murray, R, Kong, A, Golimbet, V, Jönsson, E G, Terenius, L, Agartz, I, Petursson, H, Nöthen, M M, Rietschel, M, Peltonen, L, Rujescu, D, Collier, D A, Stefansson, H, St Clair, D, and Stefansson, K
Published: 2011
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20. Copy number variations of chromosome 16p13.1 region associated with schizophrenia

Author: Ingason, A, Rujescu, D, Cichon, S, Sigurdsson, E, Sigmundsson, T, Pietiläinen, O P H, Buizer-Voskamp, J E, Strengman, E, Francks, C, Muglia, P, Gylfason, A, Gustafsson, O, Olason, P I, Steinberg, S, Hansen, T, Jakobsen, K D, Rasmussen, H B, Giegling, I, Möller, H-J, Hartmann, A, Crombie, C, Fraser, G, Walker, N, Lonnqvist, J, Suvisaari, J, Tuulio-Henriksson, A, Bramon, E, Kiemeney, L A, Franke, B, Murray, R, Vassos, E, Toulopoulou, T, Mühleisen, T W, Tosato, S, Ruggeri, M, Djurovic, S, Andreassen, O A, Zhang, Z, Werge, T, Ophoff, R A, Rietschel, M, Nöthen, M M, Petursson, H, Stefansson, H, Peltonen, L, Collier, D, Stefansson, K, and Clair, D M St
Published: 2011
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21. Systematic meta-analyses and field synopsis of genetic association studies of violence and aggression

Author: Vassos, E, Collier, D A, and Fazel, S
Published: 2014
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22. ENVIRONMENTAL RISK FACTORS DIFFERENCES AMONG DIAGNOSTIC CATEGORIES IN EU-GEI STUDY

Author: Rodriguez, V, Alameda, L, Quattrone, D, Tripoli, G, Gayer-Anderson, C, Morgan, C, Di Forti, M, Vassos, E, Murray, R, Rodriguez, V, Alameda, L, Quattrone, D, Tripoli, G, Gayer-Anderson, C, Morgan, C, Di Forti, M, Vassos, E, and Murray, R
Subjects: schizophrenia, major depression, environment, bipolar
Published: 2019

23. CAN PRS FOR SCHIZOPHRENIA, BIPOLAR DISORDER AND MAJOR DEPRESSION DISTINGUISH AFFECTIVE PSYCHOSIS DIAGNOSTIC CATEGORIES? THE EU-GEI STUDY

Author: Rodriguez, V, Quattrone, D, Tripoli, G, Alameda, L, Di Forti, M, Murray, R, Vassos, E, Rodriguez, V, Quattrone, D, Tripoli, G, Alameda, L, Di Forti, M, Murray, R, and Vassos, E
Subjects: schizophrenia, PRS, major depression, bipolar
Published: 2019

24. Dose response of the 16p11.2 distal copy number variant on intracranial volume and basal ganglia

Author: Sønderby, I.E., Gústafsson, Ó., Doan, N.T., Hibar, D.P., Martin-Brevet, S., Abdellaoui, A., Ames, D., Amunts, K., Andersson, M., Armstrong, N.J., Bernard, M., Blackburn, N., Blangero, J., Boomsma, D.I., Bralten, J., Brattbak, H-R, Brodaty, H., Brouwer, R.M., Bülow, R., Calhoun, V., Caspers, S., Cavalleri, G., Chen, C-H, Cichon, S., Ciufolini, S., Corvin, A., Crespo-Facorro, B., Curran, J.E., Dale, A.M., Dalvie, S., Dazzan, P., de Geus, E.J.C., de Zubicaray, G.I., de Zwarte, S.M.C., Delanty, N., den Braber, A., Desrivières, S., Donohoe, G., Draganski, B., Ehrlich, S., Espeseth, T., Fisher, S.E., Franke, B., Frouin, V., Fukunaga, M., Gareau, T., Glahn, D.C., Grabe, H., Groenewold, N.A., Haavik, J., Håberg, A., Hashimoto, R., Hehir-Kwa, J.Y., Heinz, A., Hillegers, M.H.J., Hoffmann, P., Holleran, L., Hottenga, J-J, Hulshoff, H.E., Ikeda, M., Jahanshad, N., Jernigan, T., Jockwitz, C., Johansson, S., Jonsdottir, G.A., Jönsson, E.G., Kahn, R., Kaufmann, T., Kelly, S., Kikuchi, M., Knowles, E.E.M., Kolskår, K.K., Kwok, J.B., Hellard, S.L., Leu, C., Liu, J., Lundervold, A.J., Lundervold, A., Martin, N.G., Mather, K., Mathias, S.R., McCormack, M., McMahon, K.L., McRae, A., Milaneschi, Y., Moreau, C., Morris, D., Mothersill, D., Mühleisen, T.W., Murray, R., Nordvik, J.E., Nyberg, L., Olde Loohuis, L.M., Ophoff, R., Paus, T., Pausova, Z., Penninx, B., Peralta, J.M., Pike, B., Prieto, C., Pudas, S., Quinlan, E., Quintana, D.S., Reinbold, C.S., Marques, T.R., Reymond, A., Richard, G., Rodriguez-Herreros, B., Roiz-Santiañez, R., Rokicki, J., Rucker, J., Sachdev, P., Sanders, A-M, Sando, S.B., Schmaal, L., Schofield, P.R., Schork, A.J., Schumann, G., Shin, J., Shumskaya, E., Sisodiya, S., Steen, V.M., Stein, D.J., Steinberg, S., Strike, L., Teumer, A., Thalamuthu, A., Tordesillas-Gutierrez, D., Turner, J., Ueland, T., Uhlmann, A., Ulfarsson, M.O., van ’t Ent, D., van der Meer, D., van Haren, N.E.M., Vaskinn, A., Vassos, E., Walters, G.B., Wang, Y., Wen, W., Whelan, C.D., Wittfeld, K., Wright, M., Yamamori, H., Zayats, T., Agartz, I., Westlye, L.T., Jacquemont, S., Djurovic, S., Stefánsson, H., Stefánsson, K., Thompson, P., Andreassen, O.A., Sønderby, I.E., Gústafsson, Ó., Doan, N.T., Hibar, D.P., Martin-Brevet, S., Abdellaoui, A., Ames, D., Amunts, K., Andersson, M., Armstrong, N.J., Bernard, M., Blackburn, N., Blangero, J., Boomsma, D.I., Bralten, J., Brattbak, H-R, Brodaty, H., Brouwer, R.M., Bülow, R., Calhoun, V., Caspers, S., Cavalleri, G., Chen, C-H, Cichon, S., Ciufolini, S., Corvin, A., Crespo-Facorro, B., Curran, J.E., Dale, A.M., Dalvie, S., Dazzan, P., de Geus, E.J.C., de Zubicaray, G.I., de Zwarte, S.M.C., Delanty, N., den Braber, A., Desrivières, S., Donohoe, G., Draganski, B., Ehrlich, S., Espeseth, T., Fisher, S.E., Franke, B., Frouin, V., Fukunaga, M., Gareau, T., Glahn, D.C., Grabe, H., Groenewold, N.A., Haavik, J., Håberg, A., Hashimoto, R., Hehir-Kwa, J.Y., Heinz, A., Hillegers, M.H.J., Hoffmann, P., Holleran, L., Hottenga, J-J, Hulshoff, H.E., Ikeda, M., Jahanshad, N., Jernigan, T., Jockwitz, C., Johansson, S., Jonsdottir, G.A., Jönsson, E.G., Kahn, R., Kaufmann, T., Kelly, S., Kikuchi, M., Knowles, E.E.M., Kolskår, K.K., Kwok, J.B., Hellard, S.L., Leu, C., Liu, J., Lundervold, A.J., Lundervold, A., Martin, N.G., Mather, K., Mathias, S.R., McCormack, M., McMahon, K.L., McRae, A., Milaneschi, Y., Moreau, C., Morris, D., Mothersill, D., Mühleisen, T.W., Murray, R., Nordvik, J.E., Nyberg, L., Olde Loohuis, L.M., Ophoff, R., Paus, T., Pausova, Z., Penninx, B., Peralta, J.M., Pike, B., Prieto, C., Pudas, S., Quinlan, E., Quintana, D.S., Reinbold, C.S., Marques, T.R., Reymond, A., Richard, G., Rodriguez-Herreros, B., Roiz-Santiañez, R., Rokicki, J., Rucker, J., Sachdev, P., Sanders, A-M, Sando, S.B., Schmaal, L., Schofield, P.R., Schork, A.J., Schumann, G., Shin, J., Shumskaya, E., Sisodiya, S., Steen, V.M., Stein, D.J., Steinberg, S., Strike, L., Teumer, A., Thalamuthu, A., Tordesillas-Gutierrez, D., Turner, J., Ueland, T., Uhlmann, A., Ulfarsson, M.O., van ’t Ent, D., van der Meer, D., van Haren, N.E.M., Vaskinn, A., Vassos, E., Walters, G.B., Wang, Y., Wen, W., Whelan, C.D., Wittfeld, K., Wright, M., Yamamori, H., Zayats, T., Agartz, I., Westlye, L.T., Jacquemont, S., Djurovic, S., Stefánsson, H., Stefánsson, K., Thompson, P., and Andreassen, O.A.
Abstract: Carriers of large recurrent copy number variants (CNVs) have a higher risk of developing neurodevelopmental disorders. The 16p11.2 distal CNV predisposes carriers to e.g., autism spectrum disorder and schizophrenia. We compared subcortical brain volumes of 12 16p11.2 distal deletion and 12 duplication carriers to 6882 non-carriers from the large-scale brain Magnetic Resonance Imaging collaboration, ENIGMA-CNV. After stringent CNV calling procedures, and standardized FreeSurfer image analysis, we found negative dose-response associations with copy number on intracranial volume and on regional caudate, pallidum and putamen volumes (β = −0.71 to −1.37; P < 0.0005). In an independent sample, consistent results were obtained, with significant effects in the pallidum (β = −0.95, P = 0.0042). The two data sets combined showed significant negative dose-response for the accumbens, caudate, pallidum, putamen and ICV (P = 0.0032, 8.9 × 10−6, 1.7 × 10−9, 3.5 × 10−12 and 1.0 × 10−4, respectively). Full scale IQ was lower in both deletion and duplication carriers compared to non-carriers. This is the first brain MRI study of the impact of the 16p11.2 distal CNV, and we demonstrate a specific effect on subcortical brain structures, suggesting a neuropathological pattern underlying the neurodevelopmental syndromes.
Published: 2020

25. Genetic copy number variants, cognition and psychosis: a meta-analysis and a family study

Author: Thygesen, J.H. (Johan H.), Presman, A. (Amelia), Harju-Seppänen, J. (Jasmine), Irizar, H. (Haritz), Jones, R. (Rebecca), Kuchenbaecker, K.B. (Karoline), Lin, K. (Kuang), Alizadeh, B.Z. (Behrooz), Austin-Zimmerman, I. (Isabelle), Bartels-Velthuis, A. (Agna), Bhat, A. (Anjali), Bruggeman, R. (Richard), Cahn, W. (Wiepke), Calafato, S. (Stella), Crespo-Facorro, B. (Benedicto), de Haan, L. (Liewe), de Zwarte, S.M.C. (Sonja M. C.), Di Forti, M. (Marta), Díez-Revuelta, Á. (Álvaro), Hall, J. (Jeremy), Hall, M.-H. (Mei-Hua), Iyegbe, C. (Conrad), Jablensky, A. (Assen), Kahn, R. (René), Kalaydjieva, L. (Luba), Kravariti, E. (Eugenia), Lawrie, S. (Stephen), Luykx, J.J. (Jurjen J.), Mata, I. (Igancio), McDonald, C. (Colm), McIntosh, A.M. (Andrew), McQuillin, A. (Andrew), Muir, R. (Rebecca), Ophoff, R.A. (Roel), Picchioni, M. (Marco), Prata, D.P. (Diana P.), Ranlund, S. (Siri), Rujescu, D. (Dan), Rutten, B.P.F., Schulze, K. (Katja), Shaikh, M. (Madiha), Schirmbeck, F. (Frederike), Simons, C.J.P. (Claudia J. P.), Toulopoulou, T. (Timothea), Amelsvoort, T.A.M.J. (Therese) van, van Haren, N. (Neeltje), Os, J. (Jim) van, van Winkel, R. (Ruud), Vassos, E. (Evangelos), Walshe, M. (Muriel), Weisbrod, M. (Matthias), Zartaloudi, E. (Eirini), Bell, V. (Vaughan), Powell, J. (John), Lewis, C.M. (Cathryn), Murray, R.M. (Robin M.), Bramon, E. (Elvira), Thygesen, J.H. (Johan H.), Presman, A. (Amelia), Harju-Seppänen, J. (Jasmine), Irizar, H. (Haritz), Jones, R. (Rebecca), Kuchenbaecker, K.B. (Karoline), Lin, K. (Kuang), Alizadeh, B.Z. (Behrooz), Austin-Zimmerman, I. (Isabelle), Bartels-Velthuis, A. (Agna), Bhat, A. (Anjali), Bruggeman, R. (Richard), Cahn, W. (Wiepke), Calafato, S. (Stella), Crespo-Facorro, B. (Benedicto), de Haan, L. (Liewe), de Zwarte, S.M.C. (Sonja M. C.), Di Forti, M. (Marta), Díez-Revuelta, Á. (Álvaro), Hall, J. (Jeremy), Hall, M.-H. (Mei-Hua), Iyegbe, C. (Conrad), Jablensky, A. (Assen), Kahn, R. (René), Kalaydjieva, L. (Luba), Kravariti, E. (Eugenia), Lawrie, S. (Stephen), Luykx, J.J. (Jurjen J.), Mata, I. (Igancio), McDonald, C. (Colm), McIntosh, A.M. (Andrew), McQuillin, A. (Andrew), Muir, R. (Rebecca), Ophoff, R.A. (Roel), Picchioni, M. (Marco), Prata, D.P. (Diana P.), Ranlund, S. (Siri), Rujescu, D. (Dan), Rutten, B.P.F., Schulze, K. (Katja), Shaikh, M. (Madiha), Schirmbeck, F. (Frederike), Simons, C.J.P. (Claudia J. P.), Toulopoulou, T. (Timothea), Amelsvoort, T.A.M.J. (Therese) van, van Haren, N. (Neeltje), Os, J. (Jim) van, van Winkel, R. (Ruud), Vassos, E. (Evangelos), Walshe, M. (Muriel), Weisbrod, M. (Matthias), Zartaloudi, E. (Eirini), Bell, V. (Vaughan), Powell, J. (John), Lewis, C.M. (Cathryn), Murray, R.M. (Robin M.), and Bramon, E. (Elvira)
Abstract: 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.
Published: 2020
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26. Genome-wide gene-environment analyses of major depressive disorder and reported lifetime traumatic experiences in UK Biobank

Author: Coleman, JRI, Peyrot, WJ, Purves, KL, Davis, KAS, Rayner, C, Choi, SW, Hubel, C, Gaspar, HA, Kan, C, Van der Auwera, S, Adams, MJ, Lyall, DM, Choi, KW, Dunn, EC, Vassos, E, Danese, A, Maughan, B, Grabe, HJ, Lewis, CM, O'Reilly, PF, McIntosh, AM, Smith, DJ, Wray, NR, Hotopf, M, Eley, TC, Breen, G, Ripke, S, Mattheisen, M, Trzaskowski, M, Byrne, EM, Abdellaoui, A, Agerbo, E, Air, TM, Andlauer, TFM, Bacanu, S-A, Baekvad-Hansen, M, Beekman, ATF, Bigdeli, TB, Binder, EB, Bryois, J, Buttenschon, HN, Bybjerg-Grauholm, J, Cai, N, Castelao, E, Christensen, JH, Clarke, T-K, Colodro-Conde, L, Couvy-Duchesne, B, Craddock, N, Crawford, GE, Davies, G, Deary, IJ, Degenhardt, F, Derks, EM, Direk, N, Dolan, CV, Escott-Price, V, Kiadeh, FFH, Finucane, HK, Foo, JC, Forstner, AJ, Frank, J, Gill, M, Goes, FS, Gordon, SD, Grove, J, Hall, LS, Hansen, CS, Hansen, TF, Herms, S, Hickie, IB, Hoffmann, P, Homuth, G, Horn, C, Hottenga, J-J, Hougaard, DM, Howard, DM, Ising, M, Jansen, R, Jones, I, Jones, LA, Jorgenson, E, Knowles, JA, Kohane, IS, Kraft, J, Kretzschmar, WW, Kutalik, Z, Li, Y, Lind, PA, MacIntyre, DJ, MacKinnon, DF, Maier, RM, Maier, W, Marchini, J, Mbarek, H, McGrath, P, McGuffin, P, Medland, SE, Mehta, D, Middeldorp, CM, Mihailov, E, Milaneschi, Y, Milani, L, Mondimore, FM, Montgomery, GW, Mostafavi, S, Mullins, N, Nauck, M, Ng, B, Nivard, MG, Nyholt, DR, Oskarsson, H, Owen, MJ, Painter, JN, Pedersen, CB, Pedersen, MG, Peterson, RE, Pettersson, E, Pistis, G, Posthuma, D, Quiroz, JA, Qvist, P, Rice, JP, Riley, BP, Rivera, M, Mirza, SS, Schoevers, R, Schulte, EC, Shen, L, Shi, J, Shyn, SI, Sigurdsson, E, Sinnamon, GCB, Smit, JH, Stefansson, H, Steinberg, S, Streit, F, Strohmaier, J, Tansey, KE, Teismann, H, Teumer, A, Thompson, W, Thomson, PA, Thorgeirsson, TE, Traylor, M, Treutlein, J, Trubetskoy, V, Uitterlinden, AG, Umbricht, D, van Hemert, AM, Viktorin, A, Visscher, PM, Wang, Y, Webb, BT, Weinsheimer, SM, Wellmann, J, Willemsen, G, Witt, SH, Wu, Y, Xi, HS, Yang, J, Zhang, F, Arolt, V, Baune, BT, Berger, K, Boomsma, DI, Cichon, S, Dannlowski, U, de Geus, EJC, DePaulo, JR, Domenici, E, Domschke, K, Esko, T, Hamilton, SP, Hayward, C, Heath, AC, Kendler, KS, Kloiber, S, Lewis, G, Li, QS, Lucae, S, Madden, PAF, Magnusson, PK, Martin, NG, Metspalu, A, Mors, O, Mortensen, PB, Mueller-Myhsok, B, Nordentoft, M, Noethen, MM, O'Donovan, MC, Paciga, SA, Pedersen, NL, Penninx, BWJH, Perlis, RH, Porteous, DJ, Potash, JB, Preisig, M, Rietschel, M, Schaefer, C, Schulze, TG, Smoller, JW, Stefansson, K, Tiemeier, H, Uher, R, Volzke, H, Weissman, MM, Werge, T, Levinson, DF, Borglum, AD, Sullivan, PF, Coleman, JRI, Peyrot, WJ, Purves, KL, Davis, KAS, Rayner, C, Choi, SW, Hubel, C, Gaspar, HA, Kan, C, Van der Auwera, S, Adams, MJ, Lyall, DM, Choi, KW, Dunn, EC, Vassos, E, Danese, A, Maughan, B, Grabe, HJ, Lewis, CM, O'Reilly, PF, McIntosh, AM, Smith, DJ, Wray, NR, Hotopf, M, Eley, TC, Breen, G, Ripke, S, Mattheisen, M, Trzaskowski, M, Byrne, EM, Abdellaoui, A, Agerbo, E, Air, TM, Andlauer, TFM, Bacanu, S-A, Baekvad-Hansen, M, Beekman, ATF, Bigdeli, TB, Binder, EB, Bryois, J, Buttenschon, HN, Bybjerg-Grauholm, J, Cai, N, Castelao, E, Christensen, JH, Clarke, T-K, Colodro-Conde, L, Couvy-Duchesne, B, Craddock, N, Crawford, GE, Davies, G, Deary, IJ, Degenhardt, F, Derks, EM, Direk, N, Dolan, CV, Escott-Price, V, Kiadeh, FFH, Finucane, HK, Foo, JC, Forstner, AJ, Frank, J, Gill, M, Goes, FS, Gordon, SD, Grove, J, Hall, LS, Hansen, CS, Hansen, TF, Herms, S, Hickie, IB, Hoffmann, P, Homuth, G, Horn, C, Hottenga, J-J, Hougaard, DM, Howard, DM, Ising, M, Jansen, R, Jones, I, Jones, LA, Jorgenson, E, Knowles, JA, Kohane, IS, Kraft, J, Kretzschmar, WW, Kutalik, Z, Li, Y, Lind, PA, MacIntyre, DJ, MacKinnon, DF, Maier, RM, Maier, W, Marchini, J, Mbarek, H, McGrath, P, McGuffin, P, Medland, SE, Mehta, D, Middeldorp, CM, Mihailov, E, Milaneschi, Y, Milani, L, Mondimore, FM, Montgomery, GW, Mostafavi, S, Mullins, N, Nauck, M, Ng, B, Nivard, MG, Nyholt, DR, Oskarsson, H, Owen, MJ, Painter, JN, Pedersen, CB, Pedersen, MG, Peterson, RE, Pettersson, E, Pistis, G, Posthuma, D, Quiroz, JA, Qvist, P, Rice, JP, Riley, BP, Rivera, M, Mirza, SS, Schoevers, R, Schulte, EC, Shen, L, Shi, J, Shyn, SI, Sigurdsson, E, Sinnamon, GCB, Smit, JH, Stefansson, H, Steinberg, S, Streit, F, Strohmaier, J, Tansey, KE, Teismann, H, Teumer, A, Thompson, W, Thomson, PA, Thorgeirsson, TE, Traylor, M, Treutlein, J, Trubetskoy, V, Uitterlinden, AG, Umbricht, D, van Hemert, AM, Viktorin, A, Visscher, PM, Wang, Y, Webb, BT, Weinsheimer, SM, Wellmann, J, Willemsen, G, Witt, SH, Wu, Y, Xi, HS, Yang, J, Zhang, F, Arolt, V, Baune, BT, Berger, K, Boomsma, DI, Cichon, S, Dannlowski, U, de Geus, EJC, DePaulo, JR, Domenici, E, Domschke, K, Esko, T, Hamilton, SP, Hayward, C, Heath, AC, Kendler, KS, Kloiber, S, Lewis, G, Li, QS, Lucae, S, Madden, PAF, Magnusson, PK, Martin, NG, Metspalu, A, Mors, O, Mortensen, PB, Mueller-Myhsok, B, Nordentoft, M, Noethen, MM, O'Donovan, MC, Paciga, SA, Pedersen, NL, Penninx, BWJH, Perlis, RH, Porteous, DJ, Potash, JB, Preisig, M, Rietschel, M, Schaefer, C, Schulze, TG, Smoller, JW, Stefansson, K, Tiemeier, H, Uher, R, Volzke, H, Weissman, MM, Werge, T, Levinson, DF, Borglum, AD, and Sullivan, PF
Abstract: Depression is more frequent among individuals exposed to traumatic events. Both trauma exposure and depression are heritable. However, the relationship between these traits, including the role of genetic risk factors, is complex and poorly understood. When modelling trauma exposure as an environmental influence on depression, both gene-environment correlations and gene-environment interactions have been observed. The UK Biobank concurrently assessed Major Depressive Disorder (MDD) and self-reported lifetime exposure to traumatic events in 126,522 genotyped individuals of European ancestry. We contrasted genetic influences on MDD stratified by reported trauma exposure (final sample size range: 24,094-92,957). The SNP-based heritability of MDD with reported trauma exposure (24%) was greater than MDD without reported trauma exposure (12%). Simulations showed that this is not confounded by the strong, positive genetic correlation observed between MDD and reported trauma exposure. We also observed that the genetic correlation between MDD and waist circumference was only significant in individuals reporting trauma exposure (rg = 0.24, p = 1.8 × 10-7 versus rg = -0.05, p = 0.39 in individuals not reporting trauma exposure, difference p = 2.3 × 10-4). Our results suggest that the genetic contribution to MDD is greater when reported trauma is present, and that a complex relationship exists between reported trauma exposure, body composition, and MDD.
Published: 2020

27. S175. CLINICAL OUTCOMES IN PEOPLE AT HIGH RISK FOR PSYCHOSIS RELATED TO INTERACTIONS BETWEEN POLYGENIC RISK SCORES AND CHILDHOOD ADVERSITY

Author: Richter, A, Vassos, E, Kempton, MJ, van der Gaag, M, de Haan, L, Nelson, B, Riecher-Rössler, A, Bressan, R, Barrantes-Vidal, N, Krebs, M-O, Nordentoft, M, Ruhrmann, S, Sachs, G, Rutten, B, Van Os, J, Valmaggia, L, McGuire, P, Richter, A, Vassos, E, Kempton, MJ, van der Gaag, M, de Haan, L, Nelson, B, Riecher-Rössler, A, Bressan, R, Barrantes-Vidal, N, Krebs, M-O, Nordentoft, M, Ruhrmann, S, Sachs, G, Rutten, B, Van Os, J, Valmaggia, L, and McGuire, P
Abstract: Background Genetic vulnerability to psychosis is polygenic, involving multiple genes with small individual effects (Psychiatric Genomics Consortium (PGC), 2014). The risk of psychosis is also related to environmental factors, such as childhood trauma (Lardinois et al, 2011). Although the onset of psychosis is thought to result from the interaction of genetic and environmental risk factors (Walker & Diforio, 1997), the extent to which the influence of childhood trauma depends on genetic susceptibility remains unclear. We sought to address this issue in a large prospective study of people at clinical high risk (CHR) for psychosis. These individuals present with psychotic and affective symptoms, and are at increased risk of developing both schizophreniform and affective psychoses. Methods We studied subjects of European ancestry, drawn from EU-GEI, a large multi-centre prospective study of people at CHR for psychosis. At baseline, DNA was obtained from subjects who met the CAARMS criteria for the CHR state (n=266) and healthy controls (HC; n=42). Childhood trauma was assessed using the childhood trauma questionnaire (CTQ), which comprises 5 subdomains: emotional abuse, physical abuse, sexual abuse, physical neglect, and emotional neglect. Polygenic risk scores (PRSs) for schizophrenia (SCZ), bipolar disorder (BD) and major depressive disorder (MDD) were constructed separately, using results from meta-analyses by the corresponding Disorder Working Groups of the PGC. The CHR subjects were clinically monitored for up to 5 years and clinical outcomes were assessed in terms of transition to psychosis (as defined by the CAARMS), remission from the CHR state (subject no longer meets CAARMS inclusion criteria) and level of functioning (GAF Disability Scale). Logistic regression models were used to investigate the association between each PRSs and childhood trauma as predictors of transition and remission, adjusted by population stratification using the first 10 pr
Published: 2020

28. Huntingtonʼs disease in Greece: the experience of 14 years

Author: Panas, M, Karadima, G, Vassos, E, Kalfakis, N, Kladi, A, Christodoulou, K, and Vassilopoulos, D
Published: 2011
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29. The impact of the CACNA1C gene polymorphism on frontolimbic function in bipolar disorder

Author: Jogia, J, Ruberto, G, Lelli-Chiesa, G, Vassos, E, Maierú, M, Tatarelli, R, Girardi, P, Collier, D, and Frangou, S
Published: 2011
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30. Genetic overlap between episodic memory deficits and schizophrenia: results from The Maudsley Twin Study

Author: Owens, S. F., Picchioni, M. M., Rijsdijk, F. V., Stahl, D., Vassos, E., Rodger, A. K., Collier, D. A., Murray, R. M., and Toulopoulou, T.
Published: 2011

31. Association of Neuregulin 1 rs3924999 genotype with antisaccades and smooth pursuit eye movements

Author: Schmechtig, A., Vassos, E., Kumari, V., Hutton, S. B., Collier, D. A., Morris, R. G., Williams, S. C. R., and Ettinger, U.
Published: 2010
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32. Correction: Dose response of the 16p11.2 distal copy number variant on intracranial volume and basal ganglia

Author: Sønderby, I.E., Gústafsson, Ó., Doan, N.T., Hibar, D.P., Martin-Brevet, S., Abdellaoui, A., Ames, D., Amunts, K., Andersson, M., Armstrong, N.J., Bernard, M., Blackburn, N., Blangero, J., Boomsma, D.I., Bralten, J., Brattbak, H-R, Brodaty, H., Brouwer, R.M., Bülow, R., Calhoun, V., Caspers, S., Cavalleri, G., Chen, C-H, Cichon, S., Ciufolini, S., Corvin, A., Crespo-Facorro, B., Curran, J.E., Dale, A.M., Dalvie, S., Dazzan, P., de Geus, E.J.C., de Zubicaray, G.I., de Zwarte, S.M.C., Delanty, N., den Braber, A., Desrivières, S., Donohoe, G., Draganski, B., Ehrlich, S., Espeseth, T., Fisher, S.E., Franke, B., Frouin, V., Fukunaga, M., Gareau, T., Glahn, D.C., Grabe, H., Groenewold, N.A., Haavik, J., Håberg, A., Hashimoto, R., Hehir-Kwa, J.Y., Heinz, A., Hillegers, M.H.J., Hoffmann, P., Holleran, L., Hottenga, J-J, Hulshoff, H.E., Ikeda, M., Jahanshad, N., Jernigan, T., Jockwitz, C., Johansson, S., Jonsdottir, G.A., Jönsson, E.G., Kahn, R., Kaufmann, T., Kelly, S., Kikuchi, M., Knowles, E.E.M., Kolskår, K.K., Kwok, J.B., Hellard, S.L., Leu, C., Liu, J., Lundervold, A.J., Lundervold, A., Martin, N.G., Mather, K., Mathias, S.R., McCormack, M., McMahon, K.L., McRae, A., Milaneschi, Y., Moreau, C., Morris, D., Mothersill, D., Mühleisen, T.W., Murray, R., Nordvik, J.E., Nyberg, L., Olde Loohuis, L.M., Ophoff, R., Paus, T., Pausova, Z., Penninx, B., Peralta, J.M., Pike, B., Prieto, C., Pudas, S., Quinlan, E., Quintana, D.S., Reinbold, C.S., Marques, T.R., Reymond, A., Richard, G., Rodriguez-Herreros, B., Roiz-Santiañez, R., Rokicki, J., Rucker, J., Sachdev, P., Sanders, A-M, Sando, S.B., Schmaal, L., Schofield, P.R., Schork, A.J., Schumann, G., Shin, J., Shumskaya, E., Sisodiya, S., Steen, V.M., Stein, D.J., Steinberg, S., Strike, L., Teumer, A., Thalamuthu, A., Tordesillas-Gutierrez, D., Turner, J.S., Ueland, T., Uhlmann, A., Ulfarsson, M.O., van ’t Ent, D., van der Meer, D., van Haren, N.E.M., Vaskinn, A., Vassos, E., Walters, G.B., Wang, Y., Wen, W., Whelan, C.D., Wittfeld, K., Wright, M., Yamamori, H., Zayats, T., Agartz, I., Westlye, L.T., Jacquemont, S., Djurovic, S., Stefánsson, H., Stefánsson, K., Thompson, P., Andreassen, O.A., Sønderby, I.E., Gústafsson, Ó., Doan, N.T., Hibar, D.P., Martin-Brevet, S., Abdellaoui, A., Ames, D., Amunts, K., Andersson, M., Armstrong, N.J., Bernard, M., Blackburn, N., Blangero, J., Boomsma, D.I., Bralten, J., Brattbak, H-R, Brodaty, H., Brouwer, R.M., Bülow, R., Calhoun, V., Caspers, S., Cavalleri, G., Chen, C-H, Cichon, S., Ciufolini, S., Corvin, A., Crespo-Facorro, B., Curran, J.E., Dale, A.M., Dalvie, S., Dazzan, P., de Geus, E.J.C., de Zubicaray, G.I., de Zwarte, S.M.C., Delanty, N., den Braber, A., Desrivières, S., Donohoe, G., Draganski, B., Ehrlich, S., Espeseth, T., Fisher, S.E., Franke, B., Frouin, V., Fukunaga, M., Gareau, T., Glahn, D.C., Grabe, H., Groenewold, N.A., Haavik, J., Håberg, A., Hashimoto, R., Hehir-Kwa, J.Y., Heinz, A., Hillegers, M.H.J., Hoffmann, P., Holleran, L., Hottenga, J-J, Hulshoff, H.E., Ikeda, M., Jahanshad, N., Jernigan, T., Jockwitz, C., Johansson, S., Jonsdottir, G.A., Jönsson, E.G., Kahn, R., Kaufmann, T., Kelly, S., Kikuchi, M., Knowles, E.E.M., Kolskår, K.K., Kwok, J.B., Hellard, S.L., Leu, C., Liu, J., Lundervold, A.J., Lundervold, A., Martin, N.G., Mather, K., Mathias, S.R., McCormack, M., McMahon, K.L., McRae, A., Milaneschi, Y., Moreau, C., Morris, D., Mothersill, D., Mühleisen, T.W., Murray, R., Nordvik, J.E., Nyberg, L., Olde Loohuis, L.M., Ophoff, R., Paus, T., Pausova, Z., Penninx, B., Peralta, J.M., Pike, B., Prieto, C., Pudas, S., Quinlan, E., Quintana, D.S., Reinbold, C.S., Marques, T.R., Reymond, A., Richard, G., Rodriguez-Herreros, B., Roiz-Santiañez, R., Rokicki, J., Rucker, J., Sachdev, P., Sanders, A-M, Sando, S.B., Schmaal, L., Schofield, P.R., Schork, A.J., Schumann, G., Shin, J., Shumskaya, E., Sisodiya, S., Steen, V.M., Stein, D.J., Steinberg, S., Strike, L., Teumer, A., Thalamuthu, A., Tordesillas-Gutierrez, D., Turner, J.S., Ueland, T., Uhlmann, A., Ulfarsson, M.O., van ’t Ent, D., van der Meer, D., van Haren, N.E.M., Vaskinn, A., Vassos, E., Walters, G.B., Wang, Y., Wen, W., Whelan, C.D., Wittfeld, K., Wright, M., Yamamori, H., Zayats, T., Agartz, I., Westlye, L.T., Jacquemont, S., Djurovic, S., Stefánsson, H., Stefánsson, K., Thompson, P., and Andreassen, O.A.
Abstract: Prior to and following the publication of this article the authors noted that the complete list of authors was not included in the main article and was only present in Supplementary Table 1. The author list in the original article has now been updated to include all authors, and Supplementary Table 1 has been removed. All other supplementary files have now been updated accordingly. Furthermore, in Table 1 of this Article, the replication cohort for the row Close relative in data set, n (%) was incorrect. All values have now been corrected to 0(0%). The publishers would like to apologise for this error and the inconvenience it may have caused.
Published: 2019

33. Use of schizophrenia and bipolar disorder polygenic risk scores to identify psychotic disorders

Author: Calafato, MS, Thygesen, JH, Ranlund, S, Zartaloudi, E, Cahn, W, Crespo-Facorro, B, Díez-Revuelta, Á, Di Forti, M, Consortium, Genetic Risk And Outcome Of Psychosis (Group), Hall, M-H, Iyegbe, C, Jablensky, A, Kahn, R, Kalaydjieva, L, Kravariti, E, Lin, K, McDonald, C, McIntosh, AM, McQuillin, A, (PEIC), Psychosis Endophenotypes International Consortium, Picchioni, M, Rujescu, D, Shaikh, M, Toulopoulou, T, Os, JV, Vassos, E, Walshe, M, Powell, J, Lewis, CM, Murray, RM, Bramon, E, (WTCCC2), Wellcome Trust Case Control Consortium 2, Toulopoulou, Timothea, Genetic Risk and Outcome of Psychosis (GROUP) consortium, Psychosis Endophenotypes International Consortium (PEIC), Universidad de Cantabria, RS: MHeNs - R2 - Mental Health, MUMC+: MA Psychiatrie (3), MUMC+: Hersen en Zenuw Centrum (3), and Psychiatrie & Neuropsychologie
Subjects: 0301 basic medicine, Male, Multifactorial Inheritance, LOCI, polygenic, Disease, FAMILY-HISTORY, DISEASE, 0302 clinical medicine, Risk Factors, psychotic disorders, EMERGING MOLECULAR ARCHITECTURE, Family history, POPULATION, education.field_of_study, Psychotic disorders, PSYCHIATRIC-DISORDERS, Middle Aged, 3. Good health, Europe, Psychiatry and Mental health, polygenic risk scores, Schizophrenia, Female, CLINICAL-IMPLICATIONS, Risk assessment, Adult, Psychosis, medicine.medical_specialty, Bipolar disorder, Population, Polymorphism, Single Nucleotide, Article, 03 medical and health sciences, Young Adult, mental disorders, medicine, Genetic predisposition, Humans, Genetic Predisposition to Disease, GXE RESEARCH, GENOME-WIDE ASSOCIATION, education, Psychiatry, business.industry, Australia, prediction, medicine.disease, schizophrenia, Polygenic risk scores, 030104 developmental biology, Logistic Models, Case-Control Studies, Polygenic, business, ROC CURVE, Prediction, 030217 neurology & neurosurgery, Genome-Wide Association Study
Abstract: BACKGROUND: There is increasing evidence for shared genetic susceptibility between schizophrenia and bipolar disorder. Although genetic variants only convey subtle increases in risk individually, their combination into a polygenic risk score constitutes a strong disease predictor.AimsTo investigate whether schizophrenia and bipolar disorder polygenic risk scores can distinguish people with broadly defined psychosis and their unaffected relatives from controls. METHOD: Using the latest Psychiatric Genomics Consortium data, we calculated schizophrenia and bipolar disorder polygenic risk scores for 1168 people with psychosis, 552 unaffected relatives and 1472 controls. RESULTS: Patients with broadly defined psychosis had dramatic increases in schizophrenia and bipolar polygenic risk scores, as did their relatives, albeit to a lesser degree. However, the accuracy of predictive models was modest. CONCLUSIONS: Although polygenic risk scores are not ready for clinical use, it is hoped that as they are refined they could help towards risk reduction advice and early interventions for psychosis.Declaration of interestR.M.M. has received honoraria for lectures from Janssen, Lundbeck, Lilly, Otsuka and Sunovian. Funding: This work was funded by the Medical Research Council (G0901310), the Wellcome Trust (grants 085475/B/08/Z, 085475/Z/08/Z), the European Union’s Seventh Framework Programme for research, technological development and demonstration (grant 602450). This study was also supported by the NIHR Biomedical Research Centre at University College London (mental health theme) and by the NIHR Biomedical Research Centre at the South London and Maudsley NHS Foundation Trust and Institute of Psychiatry – Kings College London. Further support: NHIR Academic Clinical fellowship awarded to M.S.C.. E.B. acknowledges research funding from: BMA Margaret Temple grants 2016 and 2006, MRC – Korean Health Industry Development Institute Partnering Award (MC_PC_16014), MRC New Investigator Award and a MRC Centenary Award (G0901310), National Institute of Health Research UK post-doctoral fellowship, the Psychiatry Research Trust, the Schizophrenia Research Fund, the Brain and Behaviour Research foundation’s NARSAD Young Investigator Awards 2005, 2008, Wellcome Trust Research Training Fellowship and the NIHR Biomedical Research Centre for Mental Health at the South London and Maudsley NHS Foundation Trust and Institute of Psychiatry Kings College London. The Brain and Behaviour Research foundation’s (NARSAD’s) Young Investigator Award (Grant 22604, awarded to C.I.). The BMA Margaret Temple grant 2016 to J. H.T. European Research Council Marie Curie award to A.D.-R. The infrastructure for the GROUP consortium is funded through the Geestkracht programme of the Dutch Health Research Council (ZON-MW, grant number 10-000-1001), and matching funds from participating pharmaceutical companies (Lundbeck, AstraZeneca, Eli Lilly, Janssen Cilag) and universities and mental healthcare organisations. Amsterdam: Academic Psychiatric Centre of the Academic Medical Center and the mental health institutions: GGZ Ingeest, Arkin, Dijk en Duin, GGZ Rivierduinen, Erasmus Medical Centre, GGZ Noord Holland Noord. Maastricht: Maastricht University Medical Centre and the mental health institutions: GGZ Eindhoven en de kempen, GGZ Breburg, GGZ Oost-Brabant, Vincent van Gogh voor Geestelijke Gezondheid, Mondriaan Zorggroep, Prins Clauscentrum Sittard, RIAGG Roermond, Universitair Centrum Sint-Jozef Kortenberg, CAPRI University of Antwerp, PC Ziekeren Sint-Truiden, PZ Sancta Maria Sint-Truiden, GGZ Overpelt, OPZ Rekem. Groningen: University Medical Center Groningen and the mental health institutions: Lentis, GGZ Friesland, GGZ Drenthe, Dimence, Mediant, GGNet Warnsveld, Yulius Dordrecht and Parnassia psychomedical center (The Hague). Utrecht: University Medical Center Utrecht and the mental health institutions Altrecht, GGZ Centraal, Riagg Amersfoort and Delta. The sample from Spain was collected at the Hospital Universitario Marqués de Valdecilla, University of Cantabria, Santander, Spain, under the following grant support: Carlos III Health Institute PI020499, PI050427, PI060507, Plan Nacional de Drugs Research Grant 2005- Orden sco/3246/2004, SENY Fundació Research Grant CI 2005-0308007 and Fundación Marqués de Valdecilla API07/011. The present data were obtained at the Hospital Marqués de Valdecilla, University of Cantabria, Santander, Spain, under the following grant support: MINECO Exp.: SAF2013-46292-R.
Published: 2018

34. Design of a low-THz linear-to-circular polarization conversion metasurface

Author: Vassos, E., primary, Churm, J., additional, and Feresidis, A., additional
Published: 2019
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35. A locus on barley chromosome 5H affects adult plant resistance to powdery mildew

Author: Gupta, S., Vassos, E., Sznajder, B., Fox, R., Khoo, K.H.P., Loughman, R., Chalmers, K.J., Mather, D.E., Gupta, S., Vassos, E., Sznajder, B., Fox, R., Khoo, K.H.P., Loughman, R., Chalmers, K.J., and Mather, D.E.
Abstract: Adult plant resistance against plant pathogens is of interest as a means to achieve durable resistance. Prior to this research, the barley lines CLE210 (from Uruguay) and Denar (from the Czech Republic) had been reported to exhibit adult-plant resistance against powdery mildew. Here, populations of doubled haploid lines from crosses of these lines with the susceptible cultivar Baudin were evaluated for powdery mildew resistance in field experiments. Using linkage maps constructed from genotyping-by-sequencing (GBS) data, it was determined that differences in resistance were largely attributable to a region on the long arm of chromosome 5H (5HL). Therefore, KASP™ assays were developed based on GBS tag sequences mapped on that chromosome, providing more reliable genetic maps. In each population, a large-effect QTL was mapped on 5HL. As no sequence variation was detected between CLE210 and Denar in this region of 5HL, the two sources of resistance may be identical by descent in the QTL region and carry the same resistance gene. Marker assays from the QTL region were evaluated on a panel of barley lines, providing information that breeders could use to select assays for use in marker-assisted selection.
Published: 2018

36. A polygenic risk score analysis of psychosis endophenotypes across brain functional, structural, and cognitive domains.

Author: Ranlund, S, Calafato, S, Thygesen, JH, Lin, K, Cahn, W, Crespo-Facorro, B, de Zwarte, SMC, Díez, Á, Di Forti, M, GROUP, Iyegbe, C, Jablensky, A, Jones, R, Hall, M-H, Kahn, R, Kalaydjieva, L, Kravariti, E, McDonald, C, McIntosh, AM, McQuillin, A, PEIC, Picchioni, M, Prata, DP, Rujescu, D, Schulze, K, Shaikh, M, Toulopoulou, T, van Haren, N, van Os, J, Vassos, E, Walshe, M, WTCCC2, Lewis, C, Murray, RM, Powell, J, Bramon, E, Ranlund, S, Calafato, S, Thygesen, JH, Lin, K, Cahn, W, Crespo-Facorro, B, de Zwarte, SMC, Díez, Á, Di Forti, M, GROUP, Iyegbe, C, Jablensky, A, Jones, R, Hall, M-H, Kahn, R, Kalaydjieva, L, Kravariti, E, McDonald, C, McIntosh, AM, McQuillin, A, PEIC, Picchioni, M, Prata, DP, Rujescu, D, Schulze, K, Shaikh, M, Toulopoulou, T, van Haren, N, van Os, J, Vassos, E, Walshe, M, WTCCC2, Lewis, C, Murray, RM, Powell, J, and Bramon, E
Abstract: This large multi-center study investigates the relationships between genetic risk for schizophrenia and bipolar disorder, and multi-modal endophenotypes for psychosis. The sample included 4,242 individuals; 1,087 patients with psychosis, 822 unaffected first-degree relatives of patients, and 2,333 controls. Endophenotypes included the P300 event-related potential (N = 515), lateral ventricular volume (N = 798), and the cognitive measures block design (N = 3,089), digit span (N = 1,437), and the Ray Auditory Verbal Learning Task (N = 2,406). Data were collected across 11 sites in Europe and Australia; all genotyping and genetic analyses were done at the same laboratory in the United Kingdom. We calculated polygenic risk scores for schizophrenia and bipolar disorder separately, and used linear regression to test whether polygenic scores influenced the endophenotypes. Results showed that higher polygenic scores for schizophrenia were associated with poorer performance on the block design task and explained 0.2% (p = 0.009) of the variance. Associations in the same direction were found for bipolar disorder scores, but this was not statistically significant at the 1% level (p = 0.02). The schizophrenia score explained 0.4% of variance in lateral ventricular volumes, the largest across all phenotypes examined, although this was not significant (p = 0.063). None of the remaining associations reached significance after correction for multiple testing (with alpha at 1%). These results indicate that common genetic variants associated with schizophrenia predict performance in spatial visualization, providing additional evidence that this measure is an endophenotype for the disorder with shared genetic risk variants. The use of endophenotypes such as this will help to characterize the effects of common genetic variation in psychosis.
Published: 2018

37. Design of a novel polarization converter based on artificial materials with metallic meta-atoms

Author: Vassos, E., primary, Whittow, W., additional, and Feresidis, A., additional
Published: 2018
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38. Systematic meta-analyses and field synopsis of genetic association studies of violence and aggression

Author: Vassos, E, Collier, DA, and Fazel, S
Subjects: meta-analysis, Aggression, violence, association studies, Databases, Factual, Humans, Original Article, genetics, Genetic Association Studies
Abstract: A large number of candidate gene studies for aggression and violence have been conducted. Successful identification of associations between genetic markers and aggression would contribute to understanding the neurobiology of antisocial behavior and potentially provide useful tools for risk prediction and therapeutic targets for high-risk groups of patients and offenders. We systematically reviewed the literature and assessed the evidence on genetic association studies of aggression and related outcomes in order to provide a field synopsis. We searched PubMed and Huge Navigator databases and sought additional data through reviewing reference lists and correspondence with investigators. Genetic association studies were included if outcome data on aggression or violent behavior either as a binary outcome or as a quantitative trait were provided. From 1331 potentially relevant investigations, 185 studies constituting 277 independent associations on 31 genes fulfilled the predetermined selection criteria. Data from variants investigated in three or more samples were combined in meta-analyses and potential sources of heterogeneity were investigated using subgroup analyses. In the primary analyses, which used relaxed inclusion criteria, we found no association between any polymorphism analyzed and aggression at the 5% level of significance. Subgroup analyses, including by severity of outcome, age group, characteristics of the sample and ethnicity, did not demonstrate any consistent findings. Current evidence does not support the use of such genes to predict dangerousness or as markers for therapeutic interventions.
Published: 2013

39. Effects of stimulants and atomoxetine on emotional lability in adults: A systematic review and meta-analysis

Author: Moukhtarian, T.R., primary, Cooper, R.E., additional, Vassos, E., additional, Moran, P., additional, and Asherson, P., additional
Published: 2017
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40. Interplay between Schizophrenia Polygenic Risk Score and Childhood Adversity in First-Presentation Psychotic Disorder: A Pilot Study.

Author: Walss-Bass, C, Trotta, A, Iyegbe, C, Di Forti, M, Sham, PC, Campbell, DD, Cherny, SS, Mondelli, V, Aitchison, KJ, Murray, RM, Vassos, E, Fisher, HL, Walss-Bass, C, Trotta, A, Iyegbe, C, Di Forti, M, Sham, PC, Campbell, DD, Cherny, SS, Mondelli, V, Aitchison, KJ, Murray, RM, Vassos, E, and Fisher, HL
Abstract: A history of childhood adversity is associated with psychotic disorder, with an increase in risk according to number or severity of exposures. However, it is not known why only some exposed individuals go on to develop psychosis. One possibility is pre-existing genetic vulnerability. Research on gene-environment interaction in psychosis has primarily focused on candidate genes, although the genetic effects are now known to be polygenic. This pilot study investigated whether the effect of childhood adversity on psychosis is moderated by the polygenic risk score for schizophrenia (PRS). Data were utilised from the Genes and Psychosis (GAP) study set in South London, UK. The GAP sample comprises 285 first-presentation psychosis cases and 256 unaffected controls with information on childhood adversity. We studied only white subjects (80 cases and 110 controls) with PRS data, as the PRS has limited predictive ability in patients of African ancestry. The occurrence of childhood adversity was assessed with the Childhood Experience of Care and Abuse Questionnaire (CECA.Q) and the PRS was based on genome-wide meta-analysis results for schizophrenia from the Psychiatric Genomics Consortium. Higher schizophrenia PRS and childhood adversities each predicted psychosis status. Nevertheless, no evidence was found for interaction as departure from additivity, indicating that the effect of polygenic risk scores on psychosis was not increased in the presence of a history of childhood adversity. These findings are compatible with a multifactorial threshold model in which both genetic liability and exposure to environmental risk contribute independently to the etiology of psychosis.
Published: 2016

41. Genome-wide significant association between a 'negative mood delusions' dimension in bipolar disorder and genetic variation on chromosome 3q26.1

Author: Meier, S., Mattheisen, M., Steffens, M., Schmael, C., McMahon, F. J., Study, Bipolar Disorder Genome, Nöthen, M. M., Cichon, S., Schulze, T. G., Rietschel, M., Kelsoe, John R, Greenwood, Tiffany A, Vassos, E., Nievergelt, Caroline M, Barrett, Thomas B, McKinney, Rebecca, Shilling, Paul D, Schork, Nicholas J, Smith, Erin N, Bloss, Cinnamon S, Nurnberger, John, Edenberg, Howard J, Foroud, Tatiana, Strohmaier, J., Koller, Daniel L, Gershon, Elliot S, Liu, Chun-Yu, Badner, Judith A, Scheftner, William, Lawson, William B, Nwulia, Evaristus A, Hipolito, Maria, Coryell, William, Rice, John, Treutlein, J., Byerley, William, McMahon, Francis, Chen, David T W, Schulze, Thomas G, Berrettini, Wade, Potash, James B, Zandi, Peter P, Mahon, Pamela B, McInnis, Melvin, Craig, David, Josef, F., Szelinger, Szabolcs, Breuer, R., Degenhardt, F., Mühleisen, T. W., and Müller-Myhsok, B.
Subjects: Adult, Male, medicine.medical_specialty, SLC2A2, Genome-wide association study, Delusions, genome-wide, 03 medical and health sciences, Cellular and Molecular Neuroscience, 0302 clinical medicine, medicine, Humans, Bipolar disorder, ddc:610, Allele, diagnosis [Bipolar Disorder], Psychiatry, psychology [Bipolar Disorder], Alleles, Biological Psychiatry, Genetic association, Glucose Transporter Type 2, bipolar disorder, factor dimensions, 1. No poverty, Case-control study, SLC2A2 protein, human, Odds ratio, Middle Aged, medicine.disease, 030227 psychiatry, Psychiatry and Mental health, Schizophrenia, Case-Control Studies, Behavioral medicine, genetics [Delusions], Female, Original Article, genetics [Glucose Transporter Type 2], subphenotype, Factor Analysis, Statistical, Psychology, genetics [Bipolar Disorder], 030217 neurology & neurosurgery, Genome-Wide Association Study, Clinical psychology
Abstract: Research suggests that clinical symptom dimensions may be more useful in delineating the genetics of bipolar disorder (BD) than standard diagnostic models. To date, no study has applied this concept to data from genome-wide association studies (GWAS). We performed a GWAS of factor dimensions in 927 clinically well-characterized BD patients of German ancestry. Rs9875793, which is located in an intergenic region of 3q26.1 and in the vicinity of the solute carrier family 2 (facilitated glucose transporter), member 2 gene (SLC2A2), was significantly associated with the factor analysis-derived dimension 'negative mood delusions' (n=927; P=4.65 × 10(-8), odds ratio (OR)=2.66). This dimension was comprised of the symptoms delusions of poverty, delusions of guilt and nihilistic delusions. In case-control analyses, significant association with the G allele of rs9875793 was only observed in the subgroup of BD patients who displayed symptoms of 'negative mood delusions' (allelic χ(2) model: P(G)=0.0001, OR=1.92; item present, n=89). Further support for the hypothesis that rs9875793 is associated with BD in patients displaying 'negative mood delusions' symptom, such as delusions of guilt, was obtained from an European American sample (GAIN/TGEN), which included 1247 BD patients and 1434 controls (P(EA)=0.028, OR=1.27).
Published: 2012

42. Huntington's disease in Greece: The experience of 14 years

Author: Panas, M. Karadima, G. Vassos, E. Kalfakis, N. Kladi, A. Christodoulou, K. Vassilopoulos, D.
Abstract: A large scale genetic and epidemiological study of Huntington's disease (HD) was carried out in Greece from January 1995 to December 2008. Diagnostic testing was carried out in 461 symptomatic individuals, while 256 were tested for presymptomatic purposes. The diagnosis of HD with a CAG expansion ≥36 was confirmed in 278 symptomatic individuals. The prevalence of HD in Greece was estimated at approximately 2.5 to 5.4:100,000, while the mean minimum incidence was estimated at 2.2 to 4.4 per million per year. The molecular diagnosis of HD was confirmed in the majority of patients (84.4%) sent for confirmation. The false-positive cases 15.6% were characterized by the absence of a family history of HD and the presence of an atypical clinical picture. The uptake of predictive testing for HD was 8.6%. A prenatal test was requested in six pregnancies. The findings of our study do not differ significantly from those of similar studies from other European countries despite the relative genetic isolation of Greece. Of interest is the identification of clusters of HD in Greece. The presence or absence of a family history of HD should be interpreted cautiously, during the diagnostic process. © 2010 John Wiley & Sons A/S.
Published: 2011

43. Common variants at VRK2 and TCF4 conferring risk of schizophrenia

Author: Steinberg, S., Jong, S. d., Genomics, I. S., Andreassen, O. A., Werge, T., Børglum, A. D., Mors, O., Mortensen, P. B., Gustafsson, O., Costas, J., O. P. H., Demontis, D., Papiol, S., Huttenlocher, J., Mattheisen, M., Breuer, R., Vassos, E., Giegling, I., Fraser, G., Walker, N., Tuulio Henriksson, A., Suvisaari, J., Lönnqvist, J., Paunio, T., Agartz, I., Melle, I., Djurovic, S., Strengman, E., G. R. O., Jürgens, G., Glenthøj, B., Terenius, L., Hougaard, D. M., Orntoft, T., Wiuf, C., Didriksen, M., Hollegaard, M. V., Nordentoft, M., Winkel, R. v., Kenis, G., Abramova, L., Kaleda, V., Arrojo, M., Sanjuán, J., Arango, C., Sperling, S., Rossner, M., Ribolsi, M., Magni, V., Siracusano, A., Christiansen, C., Kiemeney, L. A., Veldink, J., Den, L. v., Ingason, A., Muglia, P., Murray, R., Nöthen, M. M., Sigurdsson, E., Petursson, H., Thorsteinsdottir, U., Kong, A., Rubino, I. A., Hert, M. D., Réthelyi, J. M., Bitter, I., Jönsson, E. G., Golimbet, V., Carracedo, A., Ehrenreich, H., Craddock, N., Owen, M. J., O'Donovan, M. C., Case, W. T., Ruggeri, Mirella, Tosato, Sarah, Peltonen, L., Ophoff, R. A., Collier, D. A., Clair, D. S., Rietschel, M., Cichon, S., Stefansson, H., Rujescu, D., Stefansson, K., Psychiatrie & Neuropsychologie, RS: MHeNs School for Mental Health and Neuroscience, Amsterdam Neuroscience, Adult Psychiatry, and deCODE Genetics, IS-101 Reykjavik, Iceland.
Subjects: schizophrenia, sequence variants, TCF4, Genome-wide association study, Transcription Factor 4, 0302 clinical medicine, VRK2 protein, human, Polymorphism (computer science), Genotype, genetics [Schizophrenia], Neurogranin, Genetics (clinical), Schizophrenia, Risk, Alleles, Polymorphism, Single Nucleotide, Transcription Factors, Humans, Basic Helix-Loop-Helix Leucine Zipper Transcription Factors, Genetic Predisposition to Disease, Protein-Serine-Threonine Kinases, Genome-Wide Association Study, Genetics, 0303 health sciences, Association Studies Articles, Single Nucleotide, General Medicine, genetics [Transcription Factors], 3. Good health, Protein Serine-Threonine Kinases, Biology, genetics [Protein-Serine-Threonine Kinases], Molecular epidemiology [NCEBP 1], 03 medical and health sciences, ddc:570, Polymorphism, Allele, genetics [Basic Helix-Loop-Helix Leucine Zipper Transcription Factors], Settore MED/25 - Psichiatria, Molecular Biology, Molecular epidemiology Aetiology, screening and detection [NCEBP 1], 030304 developmental biology, Intron, Odds ratio, Molecular biology, TCF4 protein, human, 030217 neurology & neurosurgery
Abstract: To access publisher full text version of this article. Please click on the hyperlink in Additional Links field. Common sequence variants have recently joined rare structural polymorphisms as genetic factors with strong evidence for association with schizophrenia. Here we extend our previous genome-wide association study and meta-analysis (totalling 7 946 cases and 19 036 controls) by examining an expanded set of variants using an enlarged follow-up sample (up to 10 260 cases and 23 500 controls). In addition to previously reported alleles in the major histocompatibility complex region, near neurogranin (NRGN) and in an intron of transcription factor 4 (TCF4), we find two novel variants showing genome-wide significant association: rs2312147[C], upstream of vaccinia-related kinase 2 (VRK2) [odds ratio (OR) = 1.09, P = 1.9 × 10(-9)] and rs4309482[A], between coiled-coiled domain containing 68 (CCDC68) and TCF4, about 400 kb from the previously described risk allele, but not accounted for by its association (OR = 1.09, P = 7.8 × 10(-9)). European Union LSHM-CT-2006-037761 PIAP-GA-2008-218251 HEALTH-F2-2009-223423 National Genome Research Network of the German Federal Ministry of Education and Research (BMBF) 01GS08144 01GS08147 National Institute of Mental Health R01 MH078075 N01 MH900001 MH074027 Centre of Excellence for Complex Disease Genetics of the Academy of Finland 213506 129680 Biocentrum Helsinki Foundation Faculty of Medicine, University of Helsinki Stanley Medical Research Institute Danish Council for Strategic Research 2101-07-0059 H. Lundbeck A/S Research Council of Norway 163070/V50 South-East Norway Health Authority 2004-123 Medical Research Council Ministerio de Sanidad y Consumo, Spain PI081522 Xunta de Galicia 08CSA005208PR Swedish Research Council Wellcome Trust 083948/Z/07/Z Max Planck Society Eli Lilly and Company info:eu-repo/grantAgreement/EC/FP7/218251
Published: 2011

44. Impact of childhood adversities on specific symptom dimensions in first-episode psychosis

Author: Ajnakina, O., primary, Trotta, A., additional, Oakley-Hannibal, E., additional, Di Forti, M., additional, Stilo, S. A., additional, Kolliakou, A., additional, Gardner-Sood, P., additional, Gaughran, F., additional, David, A. S., additional, Dazzan, P., additional, Pariante, C., additional, Mondelli, V., additional, Morgan, C., additional, Vassos, E., additional, Murray, R. M., additional, and Fisher, H. L., additional
Published: 2015
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45. Common variant at 16p11.2 conferring risk of psychosis

Author: Steinberg, S., Jong, S. de, Mattheisen, M., Costas, J., Demontis, D., Jamain, S., Pietilainen, O.P.H., Lin, K., Papiol, S., Huttenlocher, J., Sigurdsson, E., Vassos, E., Giegling, I., Breuer, R., Fraser, G., Walker, N., Melle, I., Djurovic, S., Agartz, I., Tuulio-Henriksson, A., Suvisaari, J., Lonnqvist, J., Paunio, T., Olsen, L., Hansen, T., Ingason, A., Pirinen, M., Strengman, E., Hougaard, D.M., Orntoft, T., Didriksen, M., Hollegaard, M.V., Nordentoft, M., Abramova, L.I., Kaleda, V., Arrojo, M., Sanjuan, J., Arango, C., Etain, B., Bellivier, F., Meary, A., Schurhoff, F., Szoke, A., Ribolsi, M., Magni, V., Siracusano, A., Sperling, S., Rossner, M., Christiansen, C., Kiemeney, B., Franke, B., Berg, L.H. van den, Veldink, J., Curran, S., Bolton, P., Poot, M., Staal, W., Rehnstrom, K., Kilpinen, H., Freitag, C.M., Meyer, J., Magnusson, P., Saemundsen, E., Martsenkovsky, I., Bikshaieva, I., Martsenkovska, I., Vashchenko, O., Raleva, M., Paketchieva, K., Stefanovski, B., Durmishi, N., Milovancevic, M.P., Tosevski, D.L., Silagadze, T., Naneishvili, N., Mikeladze, N., Surguladze, S., Vincent, J.B., Farmer, A., Mitchell, P.B., Wright, A., Schofield, P.R., Fullerton, J.M., Montgomery, G.W., Martin, N.G., Rubino, I.A., Winkel, R. van, Kenis, G., Hert, M. de, Rethelyi, J.M., Bitter, I., Terenius, L., Jonsson, E.G., Bakker, S., Os, J. van, Jablensky, A., Leboyer, M., Bramon, E., et al., Steinberg, S., Jong, S. de, Mattheisen, M., Costas, J., Demontis, D., Jamain, S., Pietilainen, O.P.H., Lin, K., Papiol, S., Huttenlocher, J., Sigurdsson, E., Vassos, E., Giegling, I., Breuer, R., Fraser, G., Walker, N., Melle, I., Djurovic, S., Agartz, I., Tuulio-Henriksson, A., Suvisaari, J., Lonnqvist, J., Paunio, T., Olsen, L., Hansen, T., Ingason, A., Pirinen, M., Strengman, E., Hougaard, D.M., Orntoft, T., Didriksen, M., Hollegaard, M.V., Nordentoft, M., Abramova, L.I., Kaleda, V., Arrojo, M., Sanjuan, J., Arango, C., Etain, B., Bellivier, F., Meary, A., Schurhoff, F., Szoke, A., Ribolsi, M., Magni, V., Siracusano, A., Sperling, S., Rossner, M., Christiansen, C., Kiemeney, B., Franke, B., Berg, L.H. van den, Veldink, J., Curran, S., Bolton, P., Poot, M., Staal, W., Rehnstrom, K., Kilpinen, H., Freitag, C.M., Meyer, J., Magnusson, P., Saemundsen, E., Martsenkovsky, I., Bikshaieva, I., Martsenkovska, I., Vashchenko, O., Raleva, M., Paketchieva, K., Stefanovski, B., Durmishi, N., Milovancevic, M.P., Tosevski, D.L., Silagadze, T., Naneishvili, N., Mikeladze, N., Surguladze, S., Vincent, J.B., Farmer, A., Mitchell, P.B., Wright, A., Schofield, P.R., Fullerton, J.M., Montgomery, G.W., Martin, N.G., Rubino, I.A., Winkel, R. van, Kenis, G., Hert, M. de, Rethelyi, J.M., Bitter, I., Terenius, L., Jonsson, E.G., Bakker, S., Os, J. van, Jablensky, A., Leboyer, M., Bramon, E., and et al.
Abstract: Item does not contain fulltext, Epidemiological and genetic data support the notion that schizophrenia and bipolar disorder share genetic risk factors. In our previous genome-wide association study, meta-analysis and follow-up (totaling as many as 18 206 cases and 42 536 controls), we identified four loci showing genome-wide significant association with schizophrenia. Here we consider a mixed schizophrenia and bipolar disorder (psychosis) phenotype (addition of 7469 bipolar disorder cases, 1535 schizophrenia cases, 333 other psychosis cases, 808 unaffected family members and 46 160 controls). Combined analysis reveals a novel variant at 16p11.2 showing genome-wide significant association (rs4583255[T]; odds ratio=1.08; P=6.6 x 10(-11)). The new variant is located within a 593-kb region that substantially increases risk of psychosis when duplicated. In line with the association of the duplication with reduced body mass index (BMI), rs4583255[T] is also associated with lower BMI (P=0.0039 in the public GIANT consortium data set; P=0.00047 in 22 651 additional Icelanders).
Published: 2014

46. Disruption of the neurexin 1 gene is associated with schizophrenia

Author: Toulopoulou, T, Wiersma, D, Murray, R, Ruggeri, M, Tosato, S, Bonetto, C, Steinberg, S, Sigurdsson, E, Sigmundsson, T, Petursson, H, Gylfason, A, Olason, PI, Hardarsson, G, Jonsdottir, GA, Cahn, W, de Haan, L, Krabbendam, L, MyinGermeys, I, Werge, T, Kiemeney, LA, Franke, B, Pietiläinen, OPH, Picchioni, M, Vassos, E, Ettinger, U, Rietschel, M, Gustafsson, O, BuizerVoskamp, JE, Fossdal, R, Giegling, I, Sabatti, C, Ophoff, RA, Möller, HJ, Hartmann, AM, Hoffmann, P, Crombie, C, Rujescu, D, Veltman, J, Fraser, G, St Clair, D, Peltonen, L, Stefansson, K, Barnes, MR, Ingason, A, Stefansson, H, Nöthen, MM, Walker, N, Lonnqvist, J, Suvisaari, J, TuulioHenriksson, A, Djurovic, S, Collier, DA, Kahn, RS, Melle, I, Andreassen, OA, Hansen, T, Linszen, D, von Os, J, Bramon, E, Cichon, S, Bruggeman, R, ANS - Amsterdam Neuroscience, Adult Psychiatry, Germeys, Inez, Clinical Child and Family Studies, LEARN! - Brain, learning and development, and Faculteit Medische Wetenschappen/UMCG
Subjects: Male, Genetics and epigenetic pathways of disease [NCMLS 6], Gene Dosage, Aetiology, screening and detection [ONCOL 5], CARDIO-FACIAL SYNDROME, 0302 clinical medicine, Gene Duplication, Gene duplication, Perception and Action [DCN 1], HUMAN GENOME, Copy-number variation, European Continental Ancestry Group/genetics, Neural Cell Adhesion Molecules, POPULATION, Genetics (clinical), RISK, Genetics, 0303 health sciences, education.field_of_study, Schizophrenia/*genetics, REARRANGEMENTS, General Medicine, Exons, Nerve Tissue Proteins/*genetics, Penetrance, 3. Good health, Female, Molecular Sequence Numbers, Functional Neurogenomics [DCN 2], Adult, Psychosis, Adolescent, Cell Adhesion Molecules, Neuronal, Population, European Continental Ancestry Group, Nerve Tissue Proteins, COPY-NUMBER VARIATION, Biology, Gene dosage, Article, White People, STRUCTURAL VARIANTS, Genomic disorders and inherited multi-system disorders [IGMD 3], Molecular epidemiology [NCEBP 1], 03 medical and health sciences, Young Adult, Translational research [ONCOL 3], mental disorders, medicine, Humans, MICRODELETION, Genetic Predisposition to Disease, Gene Silencing, education, Molecular Biology, 030304 developmental biology, Genetic association, Hereditary cancer and cancer-related syndromes [ONCOL 1], AUTISM SPECTRUM DISORDER, Calcium-Binding Proteins, Case-Control Studies, Gene Deletion, Breakpoint, ADVANCING PATERNAL AGE, medicine.disease, Schizophrenia, 030217 neurology & neurosurgery
Abstract: Deletions within the neurexin 1 gene (NRXN1; 2p16.3) are associated with autism and have also been reported in two families with schizophrenia. We examined NRXN1, and the closely related NRXN2 and NRXN3 genes, for copy number variants (CNVs) in 2977 schizophrenia patients and 33 746 controls from seven European populations (Iceland, Finland, Norway, Germany, The Netherlands, Italy and UK) using microarray data. We found 66 deletions and 5 duplications in NRXN1, including a de novo deletion: 12 deletions and 2 duplications occurred in schizophrenia cases (0.47%) compared to 49 and 3 (0.15%) in controls. There was no common breakpoint and the CNVs varied from 18 to 420 kb. No CNVs were found in NRXN2 or NRXN3. We performed a Cochran-Mantel-Haenszel exact test to estimate association between all CNVs and schizophrenia (P = 0.13; OR = 1.73; 95% CI 0.81-3.50). Because the penetrance of NRXN1 CNVs may vary according to the level of functional impact on the gene, we next restricted the association analysis to CNVs that disrupt exons (0.24% of cases and 0.015% of controls). These were significantly associated with a high odds ratio (P = 0.0027; OR 8.97, 95% CI 1.8-51.9). We conclude that NRXN1 deletions affecting exons confer risk of schizophrenia. © The Author 2008. Published by Oxford University Press. All rights reserved., link_to_OA_fulltext
Published: 2009

47. Common variants conferring risk of schizophrenia

Author: Stefansson, H., Ophoff, R. A., Steinberg, S., Andreassen, O. A., Chichon, S., Rujescu, D., Werge, T., Pietilainen, O. P., Mors, O., Mortensen, P. B., Sigurdsson, E., Gustafsson, O., Nyegaard, M., Tuulio Henriksson, A., Ingason, A., Hansen, T., Suvisaari, J., Lonnqvist, J., Paunio, T., Borglum, A. D., Hartmann, A., Fink Jensen, A., Nordentoft, M., Hougaard, D., Norgaard Petersen, B., Bottcher, J., Olesen, J., Breuer, R., Moller, H. J., Giegling, I., Rasmussen, H. B., Timm, S., Mattheisen, M., Bitter, I., Rethelyi, J. M., Magnusdottir, B. B., Sigmundsson, T., Olason, P. I., Masson, G., Gulcher, J. R., Haraldsson, M., Fossdal, R., Thorgeirsson, T. E., Thorsteinsdottir, U., Ruggeri, Mirella, Tosato, Sarah, Franke, B., Strengman, E., Kiemeney, L. A., Group, Melle, I., Djurovic, S., Abramova, I., Kaleda, V., Sanjuan, J., de Frutos, R., Bramon, E., Vassos, E., Fraser, G., Ettinger, U., Picchioni, M., Walker, N., Toulopoulou, T., Need, A. C., Ge, D., Lim Yoon, J., Shianna, K. V., Freimer, N. B., Cator, R. M., Murray, R., Kong, A., Golimbet, V., Carracedo, A., Arango, C., Costas, J., Jonsson, E. G., Terenius, L., Agartz, I., Petursson, H., Nothen, M. M., Rietschel, M., Matthews, P. M., Muglia, P., Peltonen, L., St Clair, D., Goldstein, D. B., Collier, D., Genetic, Risk, Outcome in Psychosis, Kahn, R. S., Linszen, D. H., Van Os, J., Wiersma, D., Bruggeman, R., Cahn, H., de Haan, L., Krabbendam, L., Myin Germeys, I., ANS - Amsterdam Neuroscience, Adult Psychiatry, deCODE genetics, Sturlugata 8, IS-101 Reykjavik, Iceland., Clinical Child and Family Studies, LEARN! - Brain, learning and development, and Germeys, Inez
Subjects: Pair 6/genetics, Genetics and epigenetic pathways of disease [NCMLS 6], Genome-wide association study, Aetiology, screening and detection [ONCOL 5], 1Q21.1, Major Histocompatibility Complex/genetics, Major Histocompatibility Complex, Transcription Factor 4, 0302 clinical medicine, Chemicals And Cas Registry Numbers, Perception and Action [DCN 1], Copy-number variation, POPULATION, Genetics, Pair 18/genetics, 0303 health sciences, education.field_of_study, Genome, Human/genetics, Multidisciplinary, Basic Helix-Loop-Helix Leucine Zipper Transcription Factors, Schizophrenia/*genetics/immunology, Genetic Predisposition to Disease/*genetics, 3. Good health, DNA-Binding Proteins, Neurogranin/genetics, DISEASES, Chromosomes, Human, Pair 6, Single Nucleotide/*genetics, Functional Neurogenomics [DCN 2], Zinc finger protein 804A, Human, Genetic Markers, Psychosis, Genotype, Population, Transcription Factors/genetics, Single-nucleotide polymorphism, Biology, Polymorphism, Single Nucleotide, Chromosomes, Pair 11/genetics, Article, DNA-Binding Proteins/genetics, Genetic Markers/genetics, Genome-Wide Association Study, Humans, Polymorphism, Genomic disorders and inherited multi-system disorders [IGMD 3], Molecular epidemiology [NCEBP 1], 03 medical and health sciences, Translational research [ONCOL 3], medicine, SNP, Genetic Predisposition to Disease, GENOME-WIDE ASSOCIATION, education, 030304 developmental biology, Genetic association, Hereditary cancer and cancer-related syndromes [ONCOL 1], Genome, Human, Chromosomes, Human, Pair 11, MEMORY, medicine.disease, GENE, NEUROGRANIN, DELETIONS, Schizophrenia, biology.protein, Neurogranin, Chromosomes, Human, Pair 18, MENTAL-RETARDATION, SCAN, 030217 neurology & neurosurgery, Transcription Factors
Abstract: Schizophrenia is a complex disorder, caused by both genetic and environmental factors and their interactions. Research on pathogenesis has traditionally focused on neurotransmitter systems in the brain, particularly those involving dopamine. Schizophrenia has been considered a separate disease for over a century, but in the absence of clear biological markers, diagnosis has historically been based on signs and symptoms. A fundamental message emerging from genome-wide association studies of copy number variations (CNVs) associated with the disease is that its genetic basis does not necessarily conform to classical nosological disease boundaries. Certain CNVs confer not only high relative risk of schizophrenia but also of other psychiatric disorders. The structural variations associated with schizophrenia can involve several genes and the phenotypic syndromes, or the ĝ€ genomic disordersĝ€™, have not yet been characterized. Single nucleotide polymorphism (SNP)-based genome-wide association studies with the potential to implicate individual genes in complex diseases may reveal underlying biological pathways. Here we combined SNP data from several large genome-wide scans and followed up the most significant association signals. We found significant association with several markers spanning the major histocompatibility complex (MHC) region on chromosome 6p21.3-22.1, a marker located upstream of the neurogranin gene (NRGN) on 11q24.2 and a marker in intron four of transcription factor 4 (TCF4) on 18q21.2. Our findings implicating the MHC region are consistent with an immune component to schizophrenia risk, whereas the association with NRGN and TCF4 points to perturbation of pathways involved in brain development, memory and cognition. © 2009 Macmillan Publishers Limited., link_to_OA_fulltext
Published: 2009

48. Initial evidence for the role of CACNA1C on subcortical brain morphology in patients with bipolar disorder

Author: Perrier, E., Pompei, F., Ruberto, G., Vassos, E., Collier, D., and Frangou, S.
Published: 2011
Full Text: View/download PDF

49. Large recurrent microdeletions associated with schizophrenia

Author: Toulopoulou, T, Franke, B, Crombie, C, Fossdal, R, Sigmundsson, T, BuizerVoskamp, JE, Hansen, T, Jakobsen, KD, Muglia, P, Francks, C, Matthews, PM, Murray, R, Ruggeri, M, Sabatti, C, Gylfason, A, Halldorsson, BV, Vassos, E, Tosato, S, Walshe, M, Freimer, NB, Gulcher, JR, Gudbjartsson, D, Thorsteinsdottir, U, Kong, A, Thorgeirsson, TE, Olesen, J, Vasilescu, C, Andreassen, OA, Melle, I, Mühleisen, TW, Wang, AG, Ullum, H, Need, AC, Sigurdsson, A, Jonasdottir, A, Djurovic, S, Ophoff, RA, Georgi, A, Rietschel, M, Werge, T, Bjornsson, A, Mattiasdottir, S, Blondal, T, Haraldsson, M, Petursson, H, MyinGermeys, I, Krabbendam, L, De Haan, L, Cahn, W, Bruggeman, R, Wiersma, D, Goldstein, DB, Nöthen, MM, Peltonen, L, Van Os, J, Linszen, DH, Kahn, RS, Stefansson, K, Magnusdottir, BB, Di Forti, M, Bramon, E, Paunio, T, TuulioHenriksson, A, Giegling, I, Möller, HJ, Suvisaari, J, Hartmann, A, Shianna, KV, Ge, D, Lonnqvist, J, Collier, DA, Walker, N, Li, T, Fraser, G, Ingason, A, Steinberg, S, Sigurdsson, E, St Clair, D, Kiemeney, LA, Stefansson, H, Rujescu, D, Cichon, S, Pietiläinen, OPH, ANS - Amsterdam Neuroscience, and Adult Psychiatry
Subjects: Schizophrenia/genetics, Genetics and epigenetic pathways of disease [NCMLS 6], Loss of Heterozygosity, Aetiology, screening and detection [ONCOL 5], Bioinformatics, China, Chromosomes, Human, Pair 1/genetics, Pair 15/genetics, Europe, Gene Dosage/genetics, Genetic Predisposition to Disease/genetics, Genome, Human/genetics, Genotype, Models, Genetic, Polymorphism, Single Nucleotide/genetics, Psychotic Disorders/genetics, Sequence Deletion/genetics, Perception and Action [DCN 1], Determinants in Health and Disease [EBP 1], Copy-number variation, Molecular diagnosis, prognosis and monitoring [UMCN 1.2], Genetics, education.field_of_study, Multidisciplinary, biology, CHRNA7, Fragile X syndrome, References (31) View In Table Layout, Schizophrenia, Functional Neurogenomics [DCN 2], Psychosis, Population, Single-nucleotide polymorphism, Article, Genomic disorders and inherited multi-system disorders [IGMD 3], Molecular epidemiology [NCEBP 1], Cognitive neurosciences [UMCN 3.2], Translational research [ONCOL 3], mental disorders, medicine, education, Hereditary cancer and cancer-related syndromes [ONCOL 1], medicine.disease, Genetic defects of metabolism [UMCN 5.1], biology.protein, Autism
Abstract: Reduced fecundity, associated with severe mental disorders, places negative selection pressure on risk alleles and may explain, in part, why common variants have not been found that confer risk of disorders such as autism, schizophrenia and mental retardation. Thus, rare variants may account for a larger fraction of the overall genetic risk than previously assumed. In contrast to rare single nucleotide mutations, rare copy number variations (CNVs) can be detected using genome-wide single nucleotide polymorphism arrays. This has led to the identification of CNVs associated with mental retardation and autism. In a genome-wide search for CNVs associating with schizophrenia, we used a population-based sample to identify de novo CNVs by analysing 9,878 transmissions from parents to offspring. The 66 de novo CNVs identified were tested for association in a sample of 1,433 schizophrenia cases and 33,250 controls. Three deletions at 1q21.1, 15q11.2 and 15q13.3 showing nominal association with schizophrenia in the first sample (phase I) were followed up in a second sample of 3,285 cases and 7,951 controls (phase II). All three deletions significantly associate with schizophrenia and related psychoses in the combined sample. The identification of these rare, recurrent risk variants, having occurred independently in multiple founders and being subject to negative selection, is important in itself. CNV analysis may also point the way to the identification of additional and more prevalent risk variants in genes and pathways involved in schizophrenia. ©2008 Macmillan Publishers Limited. All rights reserved., link_to_OA_fulltext
Published: 2008

50. Large recurrent microdeletions associated with schizophrenia [Letter to Nature]

Author: Stefansson, H., Rujescu, D., Cichon, S., Pietilainen, O., Ingason, A., Steinberg, S., Fossdal, R., Sigurdsson, E., Sigmundsson, T., Buizer-Voskamp, J., Hansen, T., Jakobsen, K., Muglia, P., Francks, C., Matthews, P., Gylfason, A., Halldorsson, B., Gudbjartsson, D., Thorgeirsson, T., Sigurdsson, A., Jonasdottir, A., Bjornsson, A., Mattiasdottir, S., Blondal, T., Haraldsson, M., Magnusdottir, B., Giegling, I., Möller, H., Hartmann, A., Shianna, K., Ge, D., Need, A., Crombie, C., Fraser, G., Walker, N., Lonnqvist, J., Suvisaari, J., Tuulio-Henriksson, A., Paunio, T., Toulopoulou, T., Bramon, E., Forti, M., Murray, R., Ruggeri, M., Vassos, E., Tosato, S., Walshe, M., Li, T., Vasilescu, C., Muhleisen, T., Wang, A., Ullum, H., Djurovic, S., Melle, I., Olesen, J., Kiemeney, L., Franke, B., Sabatti, C., Freimer, N., Gulcher, J., Thorsteinsdottir, U., Kong, A., Andreassen, O., Ophoff, R., Georgi, A., Rietschel, M., Werge, T., Petursson, H., Goldstein, D., Nothen, M., Peltonen, L., Collier, D., St. Clair, D., and Stefansson, K.
Subjects: mental disorders
Abstract: Reduced fecundity, associated with severe mental disorders, places negative selection pressure on risk alleles and may explain, in part, why common variants have not been found that confer risk of disorders such as autism, schizophrenia and mental retardation. Thus, rare variants may account for a larger fraction of the overall genetic risk than previously assumed. In contrast to rare single nucleotide mutations, rare copy number variations (CNVs) can be detected using genome-wide single nucleotide polymorphism arrays. This has led to the identification of CNVs associated with mental retardation and autism. In a genome-wide search for CNVs associating with schizophrenia, we used a population-based sample to identify de novo CNVs by analysing 9,878 transmissions from parents to offspring. The 66 de novo CNVs identified were tested for association in a sample of 1,433 schizophrenia cases and 33,250 controls. Three deletions at 1q21.1, 15q11.2 and 15q13.3 showing nominal association with schizophrenia in the first sample (phase I) were followed up in a second sample of 3,285 cases and 7,951 controls (phase II). All three deletions significantly associate with schizophrenia and related psychoses in the combined sample. The identification of these rare, recurrent risk variants, having occurred independently in multiple founders and being subject to negative selection, is important in itself. CNV analysis may also point the way to the identification of additional and more prevalent risk variants in genes and pathways involved in schizophrenia.
Published: 2008

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