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Review
. 2022 Jan;43(1):37-55.
doi: 10.1002/hbm.25029. Epub 2020 May 18.

Consortium neuroscience of attention deficit/hyperactivity disorder and autism spectrum disorder: The ENIGMA adventure

Martine Hoogman  1   2 Daan van Rooij  2   3 Marieke Klein  1   2   4 Premika Boedhoe  5 Iva Ilioska  3 Ting Li  1   2 Yash Patel  6 Merel C Postema  7 Yanli Zhang-James  8 Evdokia Anagnostou  9 Celso Arango  10   11 Guillaume Auzias  12 Tobias Banaschewski  13 Claiton H D Bau  14   15   16 Marlene Behrmann  17 Mark A Bellgrove  18 Daniel Brandeis  13   19   20 Silvia Brem  19   20 Geraldo F Busatto  21 Sara Calderoni  22   23   24 Rosa Calvo  25   26   27   28 Francisco X Castellanos  28   29 David Coghill  30   31 Annette Conzelmann  32   33 Eileen Daly  34 Christine Deruelle  12 Ilan Dinstein  35 Sarah Durston  36 Christine Ecker  34   37 Stefan Ehrlich  38   39 Jeffery N Epstein  40   41 Damien A Fair  42   43 Jacqueline Fitzgerald  44 Christine M Freitag  37 Thomas Frodl  44   45   46 Louise Gallagher  44 Eugenio H Grevet  15   16   47 Jan Haavik  48   49 Pieter J Hoekstra  50 Joost Janssen  10 Georgii Karkashadze  51 Joseph A King  38 Kerstin Konrad  52   53 Jonna Kuntsi  54 Luisa Lazaro  24   25   26   27 Jason P Lerch  55   56   57 Klaus-Peter Lesch  58   59   60 Mario R Louza  61 Beatriz Luna  62 Paulo Mattos  63   64 Jane McGrath  44 Filippo Muratori  22   23 Clodagh Murphy  34 Joel T Nigg  42   43 Eileen Oberwelland-Weiss  53   65 Ruth L O'Gorman Tuura  66   67 Kirsten O'Hearn  68 Jaap Oosterlaan  69   70 Mara Parellada  10   11 Paul Pauli  71 Kerstin J Plessen  72   73 J Antoni Ramos-Quiroga  26   74   75   76 Andreas Reif  77 Liesbeth Reneman  78   79 Alessandra Retico  80 Pedro G P Rosa  21 Katya Rubia  81 Philip Shaw  82   83 Tim J Silk  31   84 Leanne Tamm  41   85 Oscar Vilarroya  76   86 Susanne Walitza  19   20 Neda Jahanshad  87 Stephen V Faraone  88 Clyde Francks  2   7 Odile A van den Heuvel  5 Tomas Paus  6   89 Paul M Thompson  87 Jan K Buitelaar  2   3   90 Barbara Franke  1   2   91
Affiliations
Review

Consortium neuroscience of attention deficit/hyperactivity disorder and autism spectrum disorder: The ENIGMA adventure

Martine Hoogman et al. Hum Brain Mapp. 2022 Jan.

Abstract

Neuroimaging has been extensively used to study brain structure and function in individuals with attention deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) over the past decades. Two of the main shortcomings of the neuroimaging literature of these disorders are the small sample sizes employed and the heterogeneity of methods used. In 2013 and 2014, the ENIGMA-ADHD and ENIGMA-ASD working groups were respectively, founded with a common goal to address these limitations. Here, we provide a narrative review of the thus far completed and still ongoing projects of these working groups. Due to an implicitly hierarchical psychiatric diagnostic classification system, the fields of ADHD and ASD have developed largely in isolation, despite the considerable overlap in the occurrence of the disorders. The collaboration between the ENIGMA-ADHD and -ASD working groups seeks to bring the neuroimaging efforts of the two disorders closer together. The outcomes of case-control studies of subcortical and cortical structures showed that subcortical volumes are similarly affected in ASD and ADHD, albeit with small effect sizes. Cortical analyses identified unique differences in each disorder, but also considerable overlap between the two, specifically in cortical thickness. Ongoing work is examining alternative research questions, such as brain laterality, prediction of case-control status, and anatomical heterogeneity. In brief, great strides have been made toward fulfilling the aims of the ENIGMA collaborations, while new ideas and follow-up analyses continue that include more imaging modalities (diffusion MRI and resting-state functional MRI), collaborations with other large databases, and samples with dual diagnoses.

Keywords: ADHD; ASD; ENIGMA; cortex; neuroimaging; subcortical volumes.

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Conflict of interest statement

Paul M. Thompson was supported in part by a research grant from Biogen, Inc. (Boston, USA) for research unrelated to this manuscript. Odile A. van den Heuvel received speaker honorarium from Benecke. David Coghill served in an advisory or consultancy role for Lilly, Medice, Novartis, Oxford outcomes, Shire and Viforpharma. He received conference support or speaker's fee by Janssen McNeil, Lilly, Medice, Novartis, Shire and Sunovian. He is/has been involved in clinical trials conducted by Lilly & Shire. The present work is unrelated to the above grants and relationships. Jonna Kuntsi has given talks at educational events sponsored by and Medicine; all funds are received by King's College London and used for studies of ADHD. Paulo Mattos was on the speakers' bureau and/or acted as consultant for Janssen‐Cilag, Novartis, and Shire in the previous 5 years; he also received travel awards to participate in scientific meetings from those companies. The ADHD outpatient program (Grupo de Estudos do Déficit de Atenção/Institute of Psychiatry) chaired by Dr. Mattos has also received research support from Novartis and Shire.The funding sources had no role in the design and conduct of the study; collection, management, analysis, or interpretation of the data; or preparation, review, or approval of the manuscript. Tobias Banaschewski served in an advisory or consultancy role for Lundbeck, Medice, Neurim Pharmaceuticals, Oberberg GmbH, Shire, and Infectopharm. He received conference support or speaker's fee by Lilly, Medice, and Shire. He received royalities from Hogrefe, Kohlhammer, CIP Medien, Oxford University Press; the present work is unrelated to these relationships. Katya Rubia received a grant from Takeda pharmaceuticals for another project. Jan Haavik has received speaker fees from Lilly, Novartis and Janssen Cilag. Stephen V. Faraone, received income, potential income, travel expenses continuing education support and/or research support from Tris, Otsuka, Arbor, Ironshore, Shire, Akili Interactive Labs, VAYA, Ironshore, Sunovion, Supernus and Genomind. With his institution, he has US patent US20130217707 A1 for the use of sodium‐hydrogen exchange inhibitors in the treatment of ADHD. Kerstin Konrad received speaking fees from Medice, Lilly and Shire. Josep‐Antoni Ramos‐Quiroga Josep‐Antoni Ramos‐Quiroga was on the speakers' bureau and/or acted as a consultant for Eli‐Lilly, Janssen‐Cilag, Novartis, Shire, Lundbeck, Almirall, Braingaze, Sincrolab, Medice and Rubió in the last 5 years. He also received travel awards (air tickets + hotel) for taking part in psychiatric meetings from Janssen‐Cilag, Medice, Rubió, Shire, and Eli‐ Lilly. The Department of Psychiatry chaired by him received unrestricted educational and research support from the following companies in the last 5 years: Eli‐Lilly, Lundbeck, Janssen‐ Cilag, Actelion, Shire, Ferrer, Oryzon, Roche, Psious, and Rubió. Klaus‐Peter Lesch served as a speaker for Eli Lilly and received research support from Medice, and travel support from Shire, all outside the submitted work. Pieter Hoekstra received a research grant from Shire and was part of the advisory board of Shire. Jan Buitelaar has been in the past 3 years a consultant to/member of advisory board of / and/or speaker for Janssen Cilag BV, Eli Lilly, Medice, Shire, Roche, and Servier. He is not an employee of any of these companies, and not a stock shareholder of any of these companies. He has no other financial or material support, including expert testimony, patents, royalties. Barbara Franke has received educational speaking fees from Medice. Susanne Walitza has received lecture honoraria from Eli‐Lilly, Opopharma in the last 5 years and her outside professional activities and interests are declared under the link of the University of Zurich www.uzh.ch/prof/ssl-dir/interessenbindungen/client/web. Daniel Brandeis serves as an unpaid scientific consultant for an EU‐funded neurofeedback trial. Georgii Karkashadze received payment for the authorship of the article and speaker fees from Sanofi and from Pikfarma. Dr. Anagnostou has served as a consultant or advisory board member for Roche and Takeda; she has received funding from the Alva Foundation, Autism Speaks, Brain Canada, the Canadian Institutes of Health Research, the Department of Defense, the National Centers of Excellence, NIH, the Ontario Brain Institute, the Physicians' Services Incorporated (PSI) Foundation, Sanofi‐Aventis, and SynapDx, as well as in‐kind research support from AMO Pharma; she receives royalties from American Psychiatric Press and Springer and an editorial honorarium from Wiley. Her contribution is on behalf of the POND network. Dr. Arango has served as a consultant for or received honoraria or grants from Acadia, Abbott, Amgen, CIBERSAM, Fundación Alicia Koplowitz, Instituto de Salud Carlos III, Janssen‐Cilag, Lundbeck, Merck, Instituto de Salud Carlos III (co‐financed by the European Regional Development Fund “A way of making Europe,” CIBERSAM, the Madrid Regional Government [S2010/BMD‐2422 AGES], the European Union Structural Funds, and the European Union Seventh Framework Programmeunder grant agreements FP7‐HEALTH‐2009‐2.2.1‐2‐241909, FP7‐HEALTH‐2009‐2.2.1‐3‐242114, FP7‐HEALTH‐2013‐2.2.1‐2‐603196, and FP7‐HEALTH‐2013‐2.2.1‐2‐602478), Otsuka, Pfizer, Roche, Servier, Shire, Takeda, and Schering‐Plow. Dr. Freitag has served as a consultant for Desitin regarding issues on ASD.

Figures

FIGURE 1
FIGURE 1
Cohen's d effect sizes for the subcortical volumes and total intracranial volume (ICV) for both ADHD and ASD cohorts as compared to controls. Figures taken and adapted from Hoogman et al. (2017) and van Rooij et al. (2018)
FIGURE 2
FIGURE 2
Cohen's d effect sizes for the cortical measures for both ADHD and ASD cohorts as compared to their controls. Figures taken and adapted from Hoogman et al. (2019) and van Rooij et al. (2018). Only the Freesurfer segmentations which showed a significant effect in either group are depicted, this means that only results of the thickness analyses are depicted here, as none of the surface area results were significant in the ASD analyses

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