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7. Genome-wide Association Meta-analysis of Childhood and Adolescent Internalizing Symptoms

Author

Jami, Eshim S, Hammerschlag, Anke R, Ip, Hill F, Allegrini, Andrea G, Benyamin, Beben, Border, Richard, Diemer, Elizabeth W, Jiang, Chang, Karhunen, Ville, Lu, Yi, Lu, Qing, Mallard, Travis T, Mishra, Pashupati P, Nolte, Ilja M, Palviainen, Teemu, Peterson, Roseann E, Sallis, Hannah M, Shabalin, Andrey A, Tate, Ashley E, Thiering, Elisabeth, Vilor-Tejedor, Natàlia, Wang, Carol, Zhou, Ang, Adkins, Daniel E, Alemany, Silvia, Ask, Helga, Chen, Qi, Corley, Robin P, Ehli, Erik A, Evans, Luke M, Havdahl, Alexandra, Hagenbeek, Fiona A, Hakulinen, Christian, Henders, Anjali K, Hottenga, Jouke Jan, Korhonen, Tellervo, Mamun, Abdullah, Marrington, Shelby, Neumann, Alexander, Rimfeld, Kaili, Rivadeneira, Fernando, Silberg, Judy L, van Beijsterveldt, Catharina E, Vuoksimaa, Eero, Whipp, Alyce M, Tong, Xiaoran, Andreassen, Ole A, Boomsma, Dorret I, Brown, Sandra A, Burt, S Alexandra, Copeland, William, Dick, Danielle M, Harden, K Paige, Harris, Kathleen Mullan, Hartman, Catharina A, Heinrich, Joachim, Hewitt, John K, Hopfer, Christian, Hypponen, Elina, Jarvelin, Marjo-Riitta, Kaprio, Jaakko, Keltikangas-Järvinen, Liisa, Klump, Kelly L, Krauter, Kenneth, Kuja-Halkola, Ralf, Larsson, Henrik, Lehtimäki, Terho, Lichtenstein, Paul, Lundström, Sebastian, Maes, Hermine H, Magnus, Per, Munafò, Marcus R, Najman, Jake M, Njølstad, Pål R, Oldehinkel, Albertine J, Pennell, Craig E, Plomin, Robert, Reichborn-Kjennerud, Ted, Reynolds, Chandra, Rose, Richard J, Smolen, Andrew, Snieder, Harold, Stallings, Michael, Standl, Marie, Sunyer, Jordi, Tiemeier, Henning, Wadsworth, Sally J, Wall, Tamara L, Whitehouse, Andrew JO, Williams, Gail M, Ystrøm, Eivind, Nivard, Michel G, Bartels, Meike, and Middeldorp, Christel M

Subjects
Biological Psychology, Psychology, Genetics, Pediatric, Brain Disorders, Serious Mental Illness, Mental Health, Human Genome, Depression, Mental Illness, Behavioral and Social Science, 2.1 Biological and endogenous factors, 2.3 Psychological, social and economic factors, Mental health, Adolescent, Adult, Aggression, Anxiety, Attention Deficit Disorder with Hyperactivity, Autistic Disorder, Bipolar Disorder, Child, Child, Preschool, Genome-Wide Association Study, Humans, Loneliness, Polymorphism, Single Nucleotide, Schizophrenia, Sleep Initiation and Maintenance Disorders, depression, anxiety, repeated measures, genetic epidemiology, molecular genetics, Medical and Health Sciences, Psychology and Cognitive Sciences, Developmental & Child Psychology, Clinical sciences, Paediatrics, Applied and developmental psychology
Abstract

ObjectiveTo investigate the genetic architecture of internalizing symptoms in childhood and adolescence.MethodIn 22 cohorts, multiple univariate genome-wide association studies (GWASs) were performed using repeated assessments of internalizing symptoms, in a total of 64,561 children and adolescents between 3 and 18 years of age. Results were aggregated in meta-analyses that accounted for sample overlap, first using all available data, and then using subsets of measurements grouped by rater, age, and instrument.ResultsThe meta-analysis of overall internalizing symptoms (INToverall) detected no genome-wide significant hits and showed low single nucleotide polymorphism (SNP) heritability (1.66%, 95% CI = 0.84-2.48%, neffective = 132,260). Stratified analyses indicated rater-based heterogeneity in genetic effects, with self-reported internalizing symptoms showing the highest heritability (5.63%, 95% CI = 3.08%-8.18%). The contribution of additive genetic effects on internalizing symptoms appeared to be stable over age, with overlapping estimates of SNP heritability from early childhood to adolescence. Genetic correlations were observed with adult anxiety, depression, and the well-being spectrum (|rg| > 0.70), as well as with insomnia, loneliness, attention-deficit/hyperactivity disorder, autism, and childhood aggression (range |rg| = 0.42-0.60), whereas there were no robust associations with schizophrenia, bipolar disorder, obsessive-compulsive disorder, or anorexia nervosa.ConclusionGenetic correlations indicate that childhood and adolescent internalizing symptoms share substantial genetic vulnerabilities with adult internalizing disorders and other childhood psychiatric traits, which could partially explain both the persistence of internalizing symptoms over time and the high comorbidity among childhood psychiatric traits. Reducing phenotypic heterogeneity in childhood samples will be key in paving the way to future GWAS success.

Published
2022

8. IntEgrating Smoking Cessation treAtment into usual online Psychological care for people with common mEntal illness: Protocol for an online randomised feasibility and pilot study (ESCAPE digital)

Author

Blackwell, Anna K.M., Daryan, Shadi, Roy, Deborah, Duffy, Daniel, Hisler, Garrett, Sawyer, Katherine, Ainsworth, Ben, Richards, Derek, Hiscock, Douglas, Papadakis, Sophia, Brown, Jamie, Munafò, Marcus R., Jacobsen, Pamela, Aveyard, Paul, and Taylor, Gemma

Published
2024
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11. Consensus-based guidance for conducting and reporting multi-analyst studies

Author

Aczel, Balazs, Szaszi, Barnabas, Nilsonne, Gustav, van den Akker, Olmo R, Albers, Casper J, van Assen, Marcel ALM, Bastiaansen, Jojanneke A, Benjamin, Daniel, Boehm, Udo, Botvinik-Nezer, Rotem, Bringmann, Laura F, Busch, Niko A, Caruyer, Emmanuel, Cataldo, Andrea M, Cowan, Nelson, Delios, Andrew, van Dongen, Noah NN, Donkin, Chris, van Doorn, Johnny B, Dreber, Anna, Dutilh, Gilles, Egan, Gary F, Gernsbacher, Morton Ann, Hoekstra, Rink, Hoffmann, Sabine, Holzmeister, Felix, Huber, Juergen, Johannesson, Magnus, Jonas, Kai J, Kindel, Alexander T, Kirchler, Michael, Kunkels, Yoram K, Lindsay, D Stephen, Mangin, Jean-Francois, Matzke, Dora, Munafò, Marcus R, Newell, Ben R, Nosek, Brian A, Poldrack, Russell A, van Ravenzwaaij, Don, Rieskamp, Jörg, Salganik, Matthew J, Sarafoglou, Alexandra, Schonberg, Tom, Schweinsberg, Martin, Shanks, David, Silberzahn, Raphael, Simons, Daniel J, Spellman, Barbara A, St-Jean, Samuel, Starns, Jeffrey J, Uhlmann, Eric Luis, Wicherts, Jelte, and Wagenmakers, Eric-Jan

Subjects
Biological Sciences, Biomedical and Clinical Sciences, Health Sciences, Consensus, Data Analysis, Datasets as Topic, Research, multi-analyst, metascience, statistical practice, science forum, expert consensus, analytical variability, None, medicine, neuroscience, none, Biochemistry and Cell Biology, Biological sciences, Biomedical and clinical sciences, Health sciences
Abstract

Any large dataset can be analyzed in a number of ways, and it is possible that the use of different analysis strategies will lead to different results and conclusions. One way to assess whether the results obtained depend on the analysis strategy chosen is to employ multiple analysts and leave each of them free to follow their own approach. Here, we present consensus-based guidance for conducting and reporting such multi-analyst studies, and we discuss how broader adoption of the multi-analyst approach has the potential to strengthen the robustness of results and conclusions obtained from analyses of datasets in basic and applied research.

Published
2021

17. Genetic diversity fuels gene discovery for tobacco and alcohol use

Author

Saunders, Gretchen R. B., Wang, Xingyan, Chen, Fang, Jang, Seon-Kyeong, Liu, Mengzhen, Wang, Chen, Gao, Shuang, Jiang, Yu, Khunsriraksakul, Chachrit, Otto, Jacqueline M., Addison, Clifton, Akiyama, Masato, Albert, Christine M., Aliev, Fazil, Alonso, Alvaro, Arnett, Donna K., Ashley-Koch, Allison E., Ashrani, Aneel A., Barnes, Kathleen C., Barr, R. Graham, Bartz, Traci M., Becker, Diane M., Bielak, Lawrence F., Benjamin, Emelia J., Bis, Joshua C., Bjornsdottir, Gyda, Blangero, John, Bleecker, Eugene R., Boardman, Jason D., Boerwinkle, Eric, Boomsma, Dorret I., Boorgula, Meher Preethi, Bowden, Donald W., Brody, Jennifer A., Cade, Brian E., Chasman, Daniel I., Chavan, Sameer, Chen, Yii-Der Ida, Chen, Zhengming, Cheng, Iona, Cho, Michael H., Choquet, Hélène, Cole, John W., Cornelis, Marilyn C., Cucca, Francesco, Curran, Joanne E., de Andrade, Mariza, Dick, Danielle M., Docherty, Anna R., Duggirala, Ravindranath, Eaton, Charles B., Ehringer, Marissa A., Esko, Tõnu, Faul, Jessica D., Silva, Lilian Fernandes, Fiorillo, Edoardo, Fornage, Myriam, Freedman, Barry I., Gabrielsen, Maiken E., Garrett, Melanie E., Gharib, Sina A., Gieger, Christian, Gillespie, Nathan, Glahn, David C., Gordon, Scott D., Gu, Charles C., Gu, Dongfeng, Gudbjartsson, Daniel F., Guo, Xiuqing, Haessler, Jeffrey, Hall, Michael E., Haller, Toomas, Harris, Kathleen Mullan, He, Jiang, Herd, Pamela, Hewitt, John K., Hickie, Ian, Hidalgo, Bertha, Hokanson, John E., Hopfer, Christian, Hottenga, JoukeJan, Hou, Lifang, Huang, Hongyan, Hung, Yi-Jen, Hunter, David J., Hveem, Kristian, Hwang, Shih-Jen, Hwu, Chii-Min, Iacono, William, Irvin, Marguerite R., Jee, Yon Ho, Johnson, Eric O., Joo, Yoonjung Y., Jorgenson, Eric, Justice, Anne E., Kamatani, Yoichiro, Kaplan, Robert C., Kaprio, Jaakko, Kardia, Sharon L. R., Keller, Matthew C., Kelly, Tanika N., Kooperberg, Charles, Korhonen, Tellervo, Kraft, Peter, Krauter, Kenneth, Kuusisto, Johanna, Laakso, Markku, Lasky-Su, Jessica, Lee, Wen-Jane, Lee, James J., Levy, Daniel, Li, Liming, Li, Kevin, Li, Yuqing, Lin, Kuang, Lind, Penelope A., Liu, Chunyu, Lloyd-Jones, Donald M., Lutz, Sharon M., Ma, Jiantao, Mägi, Reedik, Manichaikul, Ani, Martin, Nicholas G., Mathur, Ravi, Matoba, Nana, McArdle, Patrick F., McGue, Matt, McQueen, Matthew B., Medland, Sarah E., Metspalu, Andres, Meyers, Deborah A., Millwood, Iona Y., Mitchell, Braxton D., Mohlke, Karen L., Moll, Matthew, Montasser, May E., Morrison, Alanna C., Mulas, Antonella, Nielsen, Jonas B., North, Kari E., Oelsner, Elizabeth C., Okada, Yukinori, Orrù, Valeria, Palmer, Nicholette D., Palviainen, Teemu, Pandit, Anita, Park, S. Lani, Peters, Ulrike, Peters, Annette, Peyser, Patricia A., Polderman, Tinca J. C., Rafaels, Nicholas, Redline, Susan, Reed, Robert M., Reiner, Alex P., Rice, John P., Rich, Stephen S., Richmond, Nicole E., Roan, Carol, Rotter, Jerome I., Rueschman, Michael N., Runarsdottir, Valgerdur, Saccone, Nancy L., Schwartz, David A., Shadyab, Aladdin H., Shi, Jingchunzi, Shringarpure, Suyash S., Sicinski, Kamil, Skogholt, Anne Heidi, Smith, Jennifer A., Smith, Nicholas L., Sotoodehnia, Nona, Stallings, Michael C., Stefansson, Hreinn, Stefansson, Kari, Stitzel, Jerry A., Sun, Xiao, Syed, Moin, Tal-Singer, Ruth, Taylor, Amy E., Taylor, Kent D., Telen, Marilyn J., Thai, Khanh K., Tiwari, Hemant, Turman, Constance, Tyrfingsson, Thorarinn, Wall, Tamara L., Walters, Robin G., Weir, David R., Weiss, Scott T., White, Wendy B., Whitfield, John B., Wiggins, Kerri L., Willemsen, Gonneke, Willer, Cristen J., Winsvold, Bendik S., Xu, Huichun, Yanek, Lisa R., Yin, Jie, Young, Kristin L., Young, Kendra A., Yu, Bing, Zhao, Wei, Zhou, Wei, Zöllner, Sebastian, Zuccolo, Luisa, Batini, Chiara, Bergen, Andrew W., Bierut, Laura J., David, Sean P., Gagliano Taliun, Sarah A., Hancock, Dana B., Jiang, Bibo, Munafò, Marcus R., Thorgeirsson, Thorgeir E., Liu, Dajiang J., and Vrieze, Scott

Published
2022
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18. Uncovering the genetic architecture of broad antisocial behavior through a genome-wide association study meta-analysis

Author

Tielbeek, Jorim J., Uffelmann, Emil, Williams, Benjamin S., Colodro-Conde, Lucía, Gagnon, Éloi, Mallard, Travis T., Levitt, Brandt E., Jansen, Philip R., Johansson, Ada, Sallis, Hannah M., Pistis, Giorgio, Saunders, Gretchen R. B., Allegrini, Andrea G., Rimfeld, Kaili, Konte, Bettina, Klein, Marieke, Hartmann, Annette M., Salvatore, Jessica E., Nolte, Ilja M., Demontis, Ditte, Malmberg, Anni L. K., Burt, S. Alexandra, Savage, Jeanne E., Sugden, Karen, Poulton, Richie, Harris, Kathleen Mullan, Vrieze, Scott, McGue, Matt, Iacono, William G., Mota, Nina Roth, Mill, Jonathan, Viana, Joana F., Mitchell, Brittany L., Morosoli, Jose J., Andlauer, Till F. M., Ouellet-Morin, Isabelle, Tremblay, Richard E., Côté, Sylvana M., Gouin, Jean-Philippe, Brendgen, Mara R., Dionne, Ginette, Vitaro, Frank, Lupton, Michelle K., Martin, Nicholas G., Castelao, Enrique, Räikkönen, Katri, Eriksson, Johan G., Lahti, Jari, Hartman, Catharina A., Oldehinkel, Albertine J., Snieder, Harold, Liu, Hexuan, Preisig, Martin, Whipp, Alyce, Vuoksimaa, Eero, Lu, Yi, Jern, Patrick, Rujescu, Dan, Giegling, Ina, Palviainen, Teemu, Kaprio, Jaakko, Harden, Kathryn Paige, Munafò, Marcus R., Morneau-Vaillancourt, Geneviève, Plomin, Robert, Viding, Essi, Boutwell, Brian B., Aliev, Fazil, Dick, Danielle M., Popma, Arne, Faraone, Stephen V., Børglum, Anders D., Medland, Sarah E., Franke, Barbara, Boivin, Michel, Pingault, Jean-Baptiste, Glennon, Jeffrey C., Barnes, J. C., Fisher, Simon E., Moffitt, Terrie E., Caspi, Avshalom, Polderman, Tinca J. C., and Posthuma, Danielle

Published
2022
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20. Author Correction: GWAS of lifetime cannabis use reveals new risk loci, genetic overlap with psychiatric traits, and a causal effect of schizophrenia liability

Author

Pasman, Joëlle A, Verweij, Karin JH, Gerring, Zachary, Stringer, Sven, Sanchez-Roige, Sandra, Treur, Jorien L, Abdellaoui, Abdel, Nivard, Michel G, Baselmans, Bart ML, Ong, Jue-Sheng, Ip, Hill F, van der Zee, Matthijs D, Bartels, Meike, Day, Felix R, Fontanillas, Pierre, Elson, Sarah L, de Wit, Harriet, Davis, Lea K, MacKillop, James, Derringer, Jaime L, Branje, Susan JT, Hartman, Catharina A, Heath, Andrew C, van Lier, Pol AC, Madden, Pamela AF, Mägi, Reedik, Meeus, Wim, Montgomery, Grant W, Oldehinkel, AJ, Pausova, Zdenka, Ramos-Quiroga, Josep A, Paus, Tomas, Ribases, Marta, Kaprio, Jaakko, Boks, Marco PM, Bell, Jordana T, Spector, Tim D, Gelernter, Joel, Boomsma, Dorret I, Martin, Nicholas G, MacGregor, Stuart, Perry, John RB, Palmer, Abraham A, Posthuma, Danielle, Munafò, Marcus R, Gillespie, Nathan A, Derks, Eske M, and Vink, Jacqueline M

Subjects
Biological Psychology, Pharmacology and Pharmaceutical Sciences, Biomedical and Clinical Sciences, Psychology, Drug Abuse (NIDA only), Human Genome, Brain Disorders, Serious Mental Illness, Genetics, Schizophrenia, Substance Misuse, Mental Health, 2.1 Biological and endogenous factors, Aetiology, Mental health, 23andMe Research Team, Substance Use Disorders Working Group of the Psychiatric Genomics Consortium, International Cannabis Consortium, Neurosciences, Cognitive Sciences, Neurology & Neurosurgery, Biological psychology
Abstract

Several occurrences of the word 'schizophrenia' have been re-worded as 'liability to schizophrenia' or 'schizophrenia risk', including in the title, which should have been "GWAS of lifetime cannabis use reveals new risk loci, genetic overlap with psychiatric traits, and a causal effect of schizophrenia liability," as well as in Supplementary Figures 1-10 and Supplementary Tables 7-10, to more accurately reflect the findings of the work.

Published
2019

22. Investigating causal effects of income on health using two-sample Mendelian randomisation.

Author

Igelström, Erik, Munafò, Marcus R., Brumpton, Ben M., Davies, Neil M., Davey Smith, George, Martikainen, Pekka, Campbell, Desmond, Craig, Peter, Lewsey, Jim, and Katikireddi, S. Vittal

Subjects
*INCOME inequality, *MENDELIAN randomization, *GENETIC epidemiology, *SUBJECTIVE well-being (Psychology), *HEALTH behavior
Abstract

Background: Income is associated with many health outcomes, but it is unclear how far this reflects a causal relationship. Mendelian randomisation (MR) uses genetic variation between individuals to investigate causal effects and may overcome some of the confounding issues inherent in many observational study designs. Methods: We used two-sample MR using data from unrelated individuals to estimate the effect of log occupational income on indicators of mental health, physical health, and health-related behaviours. We investigated pleiotropy (direct effects of genotype on the outcome) using robust MR estimators, CAUSE, and multivariable MR including education as a co-exposure. We also investigated demographic factors and dynastic effects using within-family analyses, and misspecification of the primary phenotype using bidirectional MR and Steiger filtering. Results: We found that a 10% increase in income lowered the odds of depression (OR 0.92 [95% CI 0.86–0.98]), death (0.91 [0.86–0.96]), and ever-smoking (OR 0.91 [0.86–0.96]), and reduced BMI (− 0.06 SD [− 0.11, − 0.003]). We found little evidence of an effect on alcohol consumption (− 0.02 SD [− 0.01, 0.05]) or subjective wellbeing (0.02 SD [− 0.003, 0.04]), or on two negative control outcomes, childhood asthma (OR 0.99 [0.87, 1.13]) and birth weight (− 0.02 SD, [− 0.01, 0.05]). Within-family analysis and multivariable MR including education and income were imprecise, and there was substantial overlap between the genotypes associated with income and education: out of 36 genetic variants significantly associated with income, 29 were also significantly associated with education. Conclusions: MR evidence provides some limited support for causal effects of income on some mental health outcomes and health behaviours, but the lack of reliable evidence from approaches accounting for family-level confounding and potential pleiotropic effects of education places considerable caveats on this conclusion. MR may nevertheless be a useful complement to other observational study designs since its assumptions and limitations are radically different. Further research is needed using larger family-based genetic cohorts, and investigating the overlap between income and other socioeconomic measures. [ABSTRACT FROM AUTHOR]

Published
2025
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23. Applying Mendelian randomization to appraise causality in relationships between nutrition and cancer

Author

Wade, Kaitlin H., Yarmolinsky, James, Giovannucci, Edward, Lewis, Sarah J., Millwood, Iona Y., Munafò, Marcus R., Meddens, Fleur, Burrows, Kimberley, Bell, Joshua A., Davies, Neil M., Mariosa, Daniela, Kanerva, Noora, Vincent, Emma E., Smith-Byrne, Karl, Guida, Florence, Gunter, Marc J., Sanderson, Eleanor, Dudbridge, Frank, Burgess, Stephen, Cornelis, Marilyn C., Richardson, Tom G., Borges, Maria Carolina, Bowden, Jack, Hemani, Gibran, Cho, Yoonsu, Spiller, Wes, Richmond, Rebecca C., Carter, Alice R., Langdon, Ryan, Lawlor, Deborah A., Walters, Robin G., Vimaleswaran, Karani Santhanakrishnan, Anderson, Annie, Sandu, Meda R., Tilling, Kate, Davey Smith, George, Martin, Richard M., and Relton, Caroline L.

Published
2022
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24. Overview of CAPICE—Childhood and Adolescence Psychopathology: unravelling the complex etiology by a large Interdisciplinary Collaboration in Europe—an EU Marie Skłodowska-Curie International Training Network

Author

Rajula, Hema Sekhar Reddy, Manchia, Mirko, Agarwal, Kratika, Akingbuwa, Wonuola A., Allegrini, Andrea G., Diemer, Elizabeth, Doering, Sabrina, Haan, Elis, Jami, Eshim S., Karhunen, Ville, Leone, Marica, Schellhas, Laura, Thompson, Ashley, van den Berg, Stéphanie M., Bergen, Sarah E., Kuja-Halkola, Ralf, Hammerschlag, Anke R., Järvelin, Marjo Riitta, Leval, Amy, Lichtenstein, Paul, Lundstrom, Sebastian, Mauri, Matteo, Munafò, Marcus R., Myers, David, Plomin, Robert, Rimfeld, Kaili, Tiemeier, Henning, Ystrom, Eivind, Fanos, Vassilios, Bartels, Meike, and Middeldorp, Christel M.

Published
2022
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25. Genome‐wide association meta‐analysis of age at first cannabis use

Author

Minică, Camelia C, Verweij, Karin JH, van der Most, Peter J, Mbarek, Hamdi, Bernard, Manon, van Eijk, Kristel R, Lind, Penelope A, Liu, Meng Zhen, Maciejewski, Dominique F, Palviainen, Teemu, Sánchez‐Mora, Cristina, Sherva, Richard, Taylor, Michelle, Walters, Raymond K, Abdellaoui, Abdel, Bigdeli, Timothy B, Branje, Susan JT, Brown, Sandra A, Casas, Miguel, Corley, Robin P, Davey‐Smith, George, Davies, Gareth E, Ehli, Erik A, Farrer, Lindsay, Fedko, Iryna O, Garcia‐Martínez, Iris, Gordon, Scott D, Hartman, Catharina A, Heath, Andrew C, Hickie, Ian B, Hickman, Matthew, Hopfer, Christian J, Hottenga, Jouke Jan, Kahn, René S, Kaprio, Jaakko, Korhonen, Tellervo, Kranzler, Henry R, Krauter, Ken, van Lier, Pol AC, Madden, Pamela AF, Medland, Sarah E, Neale, Michael C, Meeus, Wim HJ, Montgomery, Grant W, Nolte, Ilja M, Oldehinkel, Albertine J, Pausova, Zdenka, Ramos‐Quiroga, Josep A, Richarte, Vanesa, Rose, Richard J, Shin, Jean, Stallings, Michael C, Wall, Tamara L, Ware, Jennifer J, Wright, Margaret J, Zhao, Hongyu, Koot, Hans M, Paus, Tomas, Hewitt, John K, Ribasés, Marta, Loukola, Anu, Boks, Marco P, Snieder, Harold, Munafò, Marcus R, Gelernter, Joel, Boomsma, Dorret I, Martin, Nicholas G, Gillespie, Nathan A, Vink, Jacqueline M, and Derks, Eske M

Subjects
Biological Psychology, Epidemiology, Health Sciences, Psychology, Cannabinoid Research, Substance Misuse, Brain Disorders, Human Genome, Clinical Research, Prevention, Drug Abuse (NIDA only), Pediatric, Genetics, 2.1 Biological and endogenous factors, Mental health, Good Health and Well Being, Adolescent, Adult, Age of Onset, Calcium-Transporting ATPases, Female, Genome-Wide Association Study, Humans, Male, Marijuana Use, Middle Aged, Polymorphism, Single Nucleotide, Twins, Young Adult, Age at first use, ATP2C2, cannabis initiation, genome-wide association, heritability, substance use, Medical and Health Sciences, Psychology and Cognitive Sciences, Substance Abuse, Public health, Clinical and health psychology
Abstract

Background and aimsCannabis is one of the most commonly used substances among adolescents and young adults. Earlier age at cannabis initiation is linked to adverse life outcomes, including multi-substance use and dependence. This study estimated the heritability of age at first cannabis use and identified associations with genetic variants.MethodsA twin-based heritability analysis using 8055 twins from three cohorts was performed. We then carried out a genome-wide association meta-analysis of age at first cannabis use in a discovery sample of 24 953 individuals from nine European, North American and Australian cohorts, and a replication sample of 3735 individuals.ResultsThe twin-based heritability for age at first cannabis use was 38% [95% confidence interval (CI) = 19-60%]. Shared and unique environmental factors explained 39% (95% CI = 20-56%) and 22% (95% CI = 16-29%). The genome-wide association meta-analysis identified five single nucleotide polymorphisms (SNPs) on chromosome 16 within the calcium-transporting ATPase gene (ATP2C2) at P  0.8), with the strongest association at the intronic variant rs1574587 (P = 4.09E-09). Gene-based tests of association identified the ATP2C2 gene on 16q24.1 (P = 1.33e-06). Although the five SNPs and ATP2C2 did not replicate, ATP2C2 has been associated with cocaine dependence in a previous study. ATP2B2, which is a member of the same calcium signalling pathway, has been associated previously with opioid dependence. SNP-based heritability for age at first cannabis use was non-significant.ConclusionAge at cannabis initiation appears to be moderately heritable in western countries, and individual differences in onset can be explained by separate but correlated genetic liabilities. The significant association between age of initiation and ATP2C2 is consistent with the role of calcium signalling mechanisms in substance use disorders.

Published
2018

26. GWAS of lifetime cannabis use reveals new risk loci, genetic overlap with psychiatric traits, and a causal effect of schizophrenia liability

Author

Pasman, Joëlle A, Verweij, Karin JH, Gerring, Zachary, Stringer, Sven, Sanchez-Roige, Sandra, Treur, Jorien L, Abdellaoui, Abdel, Nivard, Michel G, Baselmans, Bart ML, Ong, Jue-Sheng, Ip, Hill F, van der Zee, Matthijs D, Bartels, Meike, Day, Felix R, Fontanillas, Pierre, Elson, Sarah L, the 23andMe Research Team, de Wit, Harriet, Davis, Lea K, MacKillop, James, The Substance Use Disorders Working Group of the Psychiatric Genomics Consortium, International Cannabis Consortium, Derringer, Jaime L, Branje, Susan JT, Hartman, Catharina A, Heath, Andrew C, van Lier, Pol AC, Madden, Pamela AF, Mägi, Reedik, Meeus, Wim, Montgomery, Grant W, Oldehinkel, AJ, Pausova, Zdenka, Ramos-Quiroga, Josep A, Paus, Tomas, Ribases, Marta, Kaprio, Jaakko, Boks, Marco PM, Bell, Jordana T, Spector, Tim D, Gelernter, Joel, Boomsma, Dorret I, Martin, Nicholas G, MacGregor, Stuart, Perry, John RB, Palmer, Abraham A, Posthuma, Danielle, Munafò, Marcus R, Gillespie, Nathan A, Derks, Eske M, and Vink, Jacqueline M

Subjects
Biological Psychology, Pharmacology and Pharmaceutical Sciences, Biomedical and Clinical Sciences, Psychology, Behavioral and Social Science, Human Genome, Prevention, Serious Mental Illness, Brain Disorders, Clinical Research, Schizophrenia, Women's Health, Drug Abuse (NIDA only), Cannabinoid Research, Mental Health, Substance Misuse, Genetics, Mental Illness, 2.1 Biological and endogenous factors, Mental health, Good Health and Well Being, Adolescent, Adult, Aged, Aged, 80 and over, Cell Adhesion Molecules, Databases, Genetic, Female, Gene Expression Regulation, Genetic Predisposition to Disease, Genome-Wide Association Study, Genotype, Humans, Male, Marijuana Abuse, Mendelian Randomization Analysis, Middle Aged, Polymorphism, Single Nucleotide, Risk-Taking, Young Adult, 23andMe Research Team, Substance Use Disorders Working Group of the Psychiatric Genomics Consortium, International Cannabis Consortium, Neurosciences, Cognitive Sciences, Neurology & Neurosurgery, Biological psychology
Abstract

Cannabis use is a heritable trait that has been associated with adverse mental health outcomes. In the largest genome-wide association study (GWAS) for lifetime cannabis use to date (N = 184,765), we identified eight genome-wide significant independent single nucleotide polymorphisms in six regions. All measured genetic variants combined explained 11% of the variance. Gene-based tests revealed 35 significant genes in 16 regions, and S-PrediXcan analyses showed that 21 genes had different expression levels for cannabis users versus nonusers. The strongest finding across the different analyses was CADM2, which has been associated with substance use and risk-taking. Significant genetic correlations were found with 14 of 25 tested substance use and mental health-related traits, including smoking, alcohol use, schizophrenia and risk-taking. Mendelian randomization analysis showed evidence for a causal positive influence of schizophrenia risk on cannabis use. Overall, our study provides new insights into the etiology of cannabis use and its relation with mental health.

Published
2018

27. GWAS of lifetime cannabis use reveals new risk loci, genetic overlap with psychiatric traits, and a causal influence of schizophrenia.

Author

Pasman, Joëlle A, Verweij, Karin JH, Gerring, Zachary, Stringer, Sven, Sanchez-Roige, Sandra, Treur, Jorien L, Abdellaoui, Abdel, Nivard, Michel G, Baselmans, Bart ML, Ong, Jue-Sheng, Ip, Hill F, van der Zee, Matthijs D, Bartels, Meike, Day, Felix R, Fontanillas, Pierre, Elson, Sarah L, 23andMe Research Team, de Wit, Harriet, Davis, Lea K, MacKillop, James, Substance Use Disorders Working Group of the Psychiatric Genomics Consortium, International Cannabis Consortium, Derringer, Jaime L, Branje, Susan JT, Hartman, Catharina A, Heath, Andrew C, van Lier, Pol AC, Madden, Pamela AF, Mägi, Reedik, Meeus, Wim, Montgomery, Grant W, Oldehinkel, AJ, Pausova, Zdenka, Ramos-Quiroga, Josep A, Paus, Tomas, Ribases, Marta, Kaprio, Jaakko, Boks, Marco PM, Bell, Jordana T, Spector, Tim D, Gelernter, Joel, Boomsma, Dorret I, Martin, Nicholas G, MacGregor, Stuart, Perry, John RB, Palmer, Abraham A, Posthuma, Danielle, Munafò, Marcus R, Gillespie, Nathan A, Derks, Eske M, and Vink, Jacqueline M

Subjects
23andMe Research Team, Substance Use Disorders Working Group of the Psychiatric Genomics Consortium, International Cannabis Consortium, Humans, Marijuana Abuse, Genetic Predisposition to Disease, Cell Adhesion Molecules, Risk-Taking, Mental Health, Schizophrenia, Gene Expression Regulation, Genotype, Polymorphism, Single Nucleotide, Databases, Genetic, Adolescent, Adult, Aged, Aged, 80 and over, Middle Aged, Female, Male, Genome-Wide Association Study, Young Adult, Mendelian Randomization Analysis, Polymorphism, Single Nucleotide, Databases, Genetic, and over, Prevention, Human Genome, Brain Disorders, Drug Abuse, Substance Abuse, Genetics, Clinical Research, 2.1 Biological and endogenous factors, Cardiovascular, Neurology & Neurosurgery, Neurosciences, Cognitive Sciences, Psychology
Abstract

Cannabis use is a heritable trait that has been associated with adverse mental health outcomes. In the largest genome-wide association study (GWAS) for lifetime cannabis use to date (N = 184,765), we identified eight genome-wide significant independent single nucleotide polymorphisms in six regions. All measured genetic variants combined explained 11% of the variance. Gene-based tests revealed 35 significant genes in 16 regions, and S-PrediXcan analyses showed that 21 genes had different expression levels for cannabis users versus nonusers. The strongest finding across the different analyses was CADM2, which has been associated with substance use and risk-taking. Significant genetic correlations were found with 14 of 25 tested substance use and mental health-related traits, including smoking, alcohol use, schizophrenia and risk-taking. Mendelian randomization analysis showed evidence for a causal positive influence of schizophrenia risk on cannabis use. Overall, our study provides new insights into the etiology of cannabis use and its relation with mental health.

Published
2018

30. Genome-Wide Meta-Analyses of FTND and TTFC Phenotypes

Author

Chen, Jingchun, Loukola, Anu, Gillespie, Nathan A., Peterson, Roseann, Jia, Peilin, Riley, Brien, Maes, Hermine, Dick, Daniella M., Kendler, Kenneth S., Damaj, M. Imad, Miles, Michael F., Zhao, Zhongming, Li, Ming D., Vink, Jacqueline M., Minica, Camelia C., Willemsen, Gonneke, Boomsma, Dorret I., Qaiser, Beenish, Madden, Pamela A. F., Korhonen, Tellervo, Jousilahti, Pekka, Hällfors, Jenni, Gelernter, Joel, Kranzler, Henry R., Sherva, Richard, Farrer, Lindsay, Maher, Brion, Vanyukov, Michael, Taylor, Michelle, Ware, Jenifer J., Munafò, Marcus R., Lutz, Sharon M., Hokanson, John E., Gu, Fangyi, Landi, Maria T., Caporaso, Neil E., Hancock, Dana B., Gaddis, Nathan C., Baker, Timothy B., Bierut, Laura J., Johnson, Eric O., Chenoweth, Meghan, Lerman, Caryn, Tyndale, Rachel, Kaprio, Jaakko, and Chen, Xiangning

Published
2020

32. Mendelian randomization

Author

Sanderson, Eleanor, Glymour, M. Maria, Holmes, Michael V., Kang, Hyunseung, Morrison, Jean, Munafò, Marcus R., Palmer, Tom, Schooling, C. Mary, Wallace, Chris, Zhao, Qingyuan, and Davey Smith, George

Published
2022
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33. Investigating the effect of sexual behaviour on oropharyngeal cancer risk: a methodological assessment of Mendelian randomization

Author

Gormley, Mark, Dudding, Tom, Kachuri, Linda, Burrows, Kimberley, Chong, Amanda H. W., Martin, Richard M., Thomas, Steven J., Tyrrell, Jessica, Ness, Andrew R., Brennan, Paul, Munafò, Marcus R., Pring, Miranda, Boccia, Stefania, Olshan, Andrew F., Diergaarde, Brenda, Hung, Rayjean J., Liu, Geoffrey, Tajara, Eloiza H., Severino, Patricia, Toporcov, Tatiana N., Lacko, Martin, Waterboer, Tim, Brenner, Nicole, Smith, George Davey, Vincent, Emma E., and Richmond, Rebecca C.

Published
2022
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38. Grassroots Training for Reproducible Science: A Consortium-Based Approach to the Empirical Dissertation

Author

Button, Katherine S., Chambers, Christopher D., Lawrence, Natalia, and Munafò, Marcus R.

Abstract

There is a widely acknowledged need to improve the reliability and efficiency of scientific research to increase the credibility of the published scientific literature and accelerate discovery. Widespread improvement requires a cultural shift in both thinking and practice, and better education will be instrumental to achieve this. Here we argue that education in reproducible science should start at the grassroots. We present our model of consortium-based student projects to train undergraduates in reproducible team science. We discuss how with careful design we have aligned collaboration with the current conventions for individual student assessment. We reflect on our experiences of several years running the GW4 Undergraduate Psychology Consortium offering insights we hope will be of practical use to others wishing to adopt a similar approach. We consider the pedagogical benefits of our approach in equipping students with 21st-century skills. Finally, we reflect on the need to shift incentives to reward to team science in global research and how this applies to the reward structures of student assessment.

Published
2020
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41. Impaired Recognition of Basic Emotions from Facial Expressions in Young People with Autism Spectrum Disorder: Assessing the Importance of Expression Intensity

Author

Griffiths, Sarah, Jarrold, Christopher, Penton-Voak, Ian S., Woods, Andy T., Skinner, Andy L., and Munafò, Marcus R.

Abstract

It has been proposed that impairments in emotion recognition in ASD are greater for more subtle expressions of emotion. We measured recognition of 6 basic facial expressions at 8 intensity levels in young people (6-16 years) with ASD (N = 63) and controls (N = 64) via an Internet platform. Participants with ASD were less accurate than controls at labelling expressions across intensity levels, although differences at very low levels were not detected due to floor effects. Recognition accuracy did not correlate with parent-reported social functioning in either group. These findings provide further evidence for an impairment in recognition of basic emotion in ASD and do not support the idea that this impairment is limited solely to low intensity expressions.

Published
2019
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