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1. Identification of Ralstonia solanacearum resistant rootstocks for tomato grafting

Author

Mbaka Jesca, Kanyua Stella, and Mwangi B. Maina

Subjects
0106 biological sciences, 0301 basic medicine, Ralstonia solanacearum, fungi, food and beverages, Biology, biology.organism_classification, 01 natural sciences, 03 medical and health sciences, Horticulture, 030104 developmental biology, Tomato grafting, Identification (biology), Rootstock, 010606 plant biology & botany
Abstract

Bacterial wilt, caused by Ralstonia solanacearum, causes severe losses to tomato (Solanum lycopersicum L). Current management measures are not fully effective. Grafting with resistant rootstocks may be an effective strategy for managing the disease. However, R. solanacearum populations maintain considerable diversity, and little information is known regarding the efficacy of available rootstocks for use in grafting to reduce bacterial wilt incidence and subsequent crop loss. Tomato belongs to family Solanaceae which includes other well-known species, such as eggplant (aubergine), peppers, tobacco and potato. The objective of this study was to identify bacterial wilt resistant germplasm that can be used as rootstocks in tomato grafting. The potential candidates for the study included species that belong to solanaceae family. Rootstocks included tomato cultivar Mt56, Eggplant (Solanum melongena), Capsicum and Sodom apple (Solanum incarnum). Tomato cultivars Anna F1 and Cal J were used as sources of scions. Diseased plants were collected from farmers’ fields and bacterial inoculum isolated using CPG Medium with TZC used to identify distinct colonies of R.solanacearum. The inoculum was applied on the test plants by injecting into the soil planted with tomatoes. Disease severity data was recorded using 0 to 5 scoring scale. Data was subjected to ANOVA using Genstat version 15 and significantly different treatment means separated using LSD at P < 0.05. Solanum melongena, Solanum incarnum and tomato cultivar (Mt56) did not develop infection while tomato cultivar Anna F1 and Cal J (used as positive controls) and Capsicum developed infection. It was concluded that resistant germplasm to bacterial wilt exists and can be utilized to graft susceptible tomato cultivars and contribute to management of bacterial wilt.

Published
2020

2. Multi-Site Meta-Analysis of Morphometry

Author

Jahanshad, N, Faskowitz, J, Roshchupkin, Gennady, Hibar, DP, Gutman, B A, Tustison, NJ, Adams, Hieab, Niessen, Wiro, Vernooij, Meike, Ikram, Arfan, Zwiers, MP, Vasquez, AA, Franke, B, Kroll, JL, Mwangi, B, Soares, JC, Ing, A, Desrivieres, S, Schumann, G, Hansell, NK, de Zubicaray, GI, McMahon, KL, Martin, NG, Wright, MJ, Thompson, PM, Alzheimer's Dis Neuroimaging, I, Epidemiology, Medical Informatics, Radiology & Nuclear Medicine, and Neurology

Subjects
Adult, Male, Databases, Factual, Imaging genetics, Computer science, 0206 medical engineering, Big data, Neuroimaging, Genome-wide association study, Genomics, 02 engineering and technology, computer.software_genre, Polymorphism, Single Nucleotide, Article, 150 000 MR Techniques in Brain Function, Young Adult, All institutes and research themes of the Radboud University Medical Center, Meta-Analysis as Topic, Alzheimer Disease, Genetics, Humans, Aged, Aged, 80 and over, Neurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7], business.industry, Applied Mathematics, Brain, Computational Biology, 220 Statistical Imaging Neuroscience, Middle Aged, Magnetic Resonance Imaging, Data sharing, Meta-analysis, Female, Data mining, business, computer, 020602 bioinformatics, Genome-Wide Association Study, Biotechnology
Abstract

Genome-wide association studies (GWAS) link full genome data to a handful of traits. However, in neuroimaging studies, there is an almost unlimited number of traits that can be extracted for full image-wide big data analyses. Large populations are needed to achieve the necessary power to detect statistically significant effects, emphasizing the need to pool data across multiple studies. Neuroimaging consortia, e.g., ENIGMA and CHARGE, are now analyzing MRI data from over 30,000 individuals. Distributed processing protocols extract harmonized features at each site, and pool together only the cohort statistics using meta analysis to avoid data sharing. To date, such MRI projects have focused on single measures such as hippocampal volume, yet voxelwise analyses (e.g., tensor-based morphometry; TBM) may help better localize statistical effects. This can lead to $10^{13}$1013 tests for GWAS and become underpowered. We developed an analytical framework for multi-site TBM by performing multi-channel registration to cohort-specific templates. Our results highlight the reliability of the method and the added power over alternative options while preserving single site specificity and opening the doors for well-powered image-wide genome-wide discoveries.

Published
2019

3. Antipyretic Properties of Dichloromethane: Methanolic Leaf and Root Bark Extracts of Carissa edulis in Rats

Author

Njoroge W. Ann, Njagi J. Muriithi, Ngugi M Piero, Aliyu Umar, Gitahi S Maina, Mburu N. David, Mwonjoria K. John, Mworia J. Kiambi, Juma K Kelvin, and Mwangi B. Maina

Subjects
Conventional medicine, Aspirin, Traditional medicine, business.industry, Rectal temperature, visual_art, visual_art.visual_art_medium, medicine, General Materials Science, Bark, Antipyretic, Carissa edulis, Medicinal plants, Adverse effect, business, medicine.drug
Abstract

Although pyrexia benefits the nonspecific immune response to invading microor ganisms and tissue damage, it is also viewed as a source of discomfort and hence is commonly suppressed with some medication. However, conventional medications are expensive and arguably associated with various severe adverse side effects hence the need to develop herbal agents that are effective, cheaply available as alternative and complementary to conventional therapeutic drugs. Today herbal remedies are gaining popularity because the efficacy of conventional medicine is on the wane. Through ages Carissa edulis has been used as folklore remedy for various common ailments afflicting people in various parts of the world. However, although C. edulis (Forssk.)Vahl is widely used for pyrexia in the traditional medicine, an extensive search of the literature reveals no scientifically investigated report of its described effects. Thus, this study was to scientifically evaluate the ethnomedicinal importance of C. edulis (Forssk.)Vahl as an alternative and complementally intervention for the treatment of fever. The experimental groups were treated with leaf and root bark extracts at concentration of 50mg/kg, 100mg/kg and 150mg/kg. Antipyretic activities in rats were compared with aspirin (100mg/kg) as the standard conventional drug. The leaf extracts reduced the rectal temperature by between 0.02% - 2.98% while the root bark extracts reduced it by between 0.15% - 2.55%. Aspirin reduced the elevated rectal temperature by between 1.08% - 2.53%. Results indicate that both leaf and root bark extracts of C. edulis have profound antipyretic activities comparable to the conventional antipyretic drug, aspirin.

Published
2015

4. Antinociceptive properties of dichloromethane: methanolic leaf and root bark extracts of Carissa edulis in rats

Author

Gitahi S. Maina, Juma K. Kelvin, Mwangi B. Maina, Njagi J. Muriithi, Mworia J. Kiambi, Aliyu Umar, Mwonjoria K. John, Njoroge W. Ann, Mburu N. David, and Ngugi M. Piero

Abstract

Conventional medications are expensive and arguably associated with various severe adverse effects, hence the need to develop herbal agents that are effective as alternative. Carissa edulis (Forssk.) Vahl is the herb that has previously made thousands of people flock to a remote Loliondo village in Northern Tanzania, for its cure said to apply to all diseases such as cancer, HIV/AIDS, ulcers, hypertension, and diabetes. Although C. edulis (Forssk.)Vahl is widely used for pain in the traditional system of medicine; review of the literature shows no scientifically investigated report of its described effects. This study was, therefore, designed to bioscreen the DCM: methanolic extract of the leaf and root bark of C. edulis on anti-nociceptive potential. The plant parts were collected from Siakago-Mbeere north sub-county, Embu County, Kenya. Pain was induced into the rats experimentally using formalin. Anti-nociceptive activities in rats were compared with diclofenac (15 mg/kg) as the standard conventional drug. The leaf extract reduced pain by between 47.04% - 47.19% (in the early phase) and 38.96% - 89.26% (in the late phase) while the root bark extracts reduced it by between 21.5% - 41.89% (in the early phase) and between 21.4% - 90.62% (in the later phase). Diclofenac reduced pain by between 27.37% - 34.9% (in the early phase) and 88.24% - 90.28% (in the late phase). Further, the phytochemical screening results showed that the extract had alkaloids, flavonoids, steroids, saponins, phenolics and terpenoids which have been associated with anti-nociceptive activities. Therefore, the study has established that the DCM: methanolic extracts of C. edulis (Forssk.)Vahl are effective in the management of pain.

Published
2015

5. In Vitro Anti-Acetylcholinesterase Activity of Dichloromethane Leaf Extracts of Carphalea glaucescens in Chilo partellus Larvae

Author

Mwangi B. Maina, Njagi J. Muriithi, Matheri Felix, Aliyu Umar, Njoroge W Anne, Ngugi M Piero, Gitahi S Maina, Mworia J. Kiambi, and Ngure G Mutero

Subjects
chemistry.chemical_classification, biology, Aché, fungi, General Medicine, Chilo, biology.organism_classification, Terpenoid, language.human_language, chemistry.chemical_compound, Enzyme, Phytochemical, chemistry, Biochemistry, medicine, language, Phenols, IC50, Acetylcholine, medicine.drug
Abstract

Acetlycholinesterase (AChE) hydrolyses the neurotransmitter acetylcholine resulting in the termination of nerve impulse at the synapse. Anti-acetylcholinesterase activities stop the passage of the nerve impulse at the synapse resulting in continuous stimulation which can lead to death. The manufacturers of many pesticides target the AChE because it interferes with the passage of the nerve impulse. In vitro study revealed that DCM leaf extract of Carphalea glaucescens has anti-acetylcholinesterase activity against crude acetlycholinesterase (AChE) enzyme extracted from Chilo partellus and an IC50 of 12.02 mg/ml was calculated. After qualitative phytochemical screening was carried out the phytochemicals which were present were tannins, phenols, flavonoids, steroids, terpenoids and alkaloids.

Published
2016

6. Bio Efficacy of Aqueous Crude Fruit Sap Extract of Solanum incanum against Green Peach Aphids Myzus persicae Sulzer (Homoptera: Aphididae)

Author

Mworia J. Kiambi, Allan Jalemba Mgutu, Mwonjoria K. John, Aliyu Umar, Gitahi S Maina, Ngugi M Piero, Ngure G Mutero, Njoroge W. Ann, Mwangi B. Maina, and Njagi J. Muriithi

Subjects
Aphid, biology, Homoptera, food and beverages, Aphididae, Pesticide, biology.organism_classification, chemistry.chemical_compound, Horticulture, Phytochemical, chemistry, Solanum incanum, Myzus persicae, Dimethoate
Abstract

Conventional insecticides are expensive and arguably associated with various severe adverse side effects hence the need to develop botanical pesticides that are effective as alternative. Though S. incanum fruits sap has been used by the local farmers to control aphids, literature show no scientifically investigated report of its effectiveness and the mode of its insecticidal action. This study was therefore designed to evaluate anti-aphids properties of crude fruit sap extract of S. incanum. A total of 180 kales were planted in the Plant Transformation Laboratory of Kenyatta University. They were divided into six groups with 10 plant stands each. Each group was subjected to routine spray with 10, 25, 50 and 75% S. incanum extract. Dimethoate was utilized as reference insecticide while the last group was not sprayed. The number of live and dead aphids was counted for two weeks after every pray in each group with an interval of one day to determine the deterrent and insecticidal activity. The extract at different tested concentrations showed some level of insecticidal and deterrent activities against green peach aphid. Further, phytochemical screening results showed that the crude fruits sap extract of S. incanum have phytochemicals associated with insecticidal and deterrent activity. The study has established that the crude fruits sap extract of S. incanum are effective in managing insects’ pest.

Published
2016

7. In Vitro Anti-Acetylcholinesterase Activity of Crude Fruits Sap Extract of Solanum incanum in Green Peach Aphids

Author

Mwonjoria K. John, Njagi J. Muriithi, Aliyu Umar, Ngugi M Piero, Ngure G Mutero, Njoroge W. Ann, Allan Jalemba Mgutu, Mworia J. Kiambi, Mwangi B. Maina, and Gitahi S Maina

Subjects
chemistry.chemical_classification, biology, Aché, food and beverages, biochemical phenomena, metabolism, and nutrition, biology.organism_classification, Acetylcholinesterase, In vitro, language.human_language, chemistry.chemical_compound, Hydrolysis, Enzyme, chemistry, Botany, language, medicine, Solanum incanum, Food science, IC50, Acetylcholine, medicine.drug
Abstract

Acetylcholinesterase is a key enzyme that terminates nerve impulses by catalyzing the hydrolysis of neurotransmitter, acetylcholine, in the nervous system in various organisms. Irreversible inhibitors have been developed as insecticides such as organophosphates and carbamates. Aqueous crude fruit sap extract of S. incanum was evaluated for acetylcholinesterase activity in green peach aphids using Ellman’s method and is found active in inhibiting the ACHe of green peach aphids. All tested concentrations of crude fruits sap extract of S. incanum possessed the ability to inhibit acetylcholinesterase of green peach aphids at dose dependent manner and IC50 of 49.9 was calculated. This study suggest that aqueous crude fruit sap extract of S. incanum inhibit the acetylcholinesterase of the green peach aphids and it is possible the extract has compounds that increase both the level and duration of the neurotransmitter action.

Published
2015

8. Antinociceptive Properties of Dichloromethane:Methanolic Leaf Extracts of Caesalpinia volkensii and Maytenus obscura in Animal Models

Author

Ngure G Mutero, Aliyu Umar, Ngugi M Piero, Mburu N. David, Mwonjoria K. John, Mworia J. Kiambi, Njoroge W. Ann, Juma K Kelvin, Gitahi S Maina, Mwangi B. Maina, and Njagi J. Muriithi

Subjects
biology, business.industry, Maytenus, food and beverages, Pharmacology, biology.organism_classification, Terpenoid, Carrageenan, chemistry.chemical_compound, Nociception, Diclofenac, Caesalpinia volkensii, Phytochemical, chemistry, Medicine, Early phase, business, medicine.drug
Abstract

The purpose of physiological pain is protection. Pain is associated with high morbidity and socioeconomic burden. Conventional medication of pain is expensive and arguably associated with various severe adverse effects hence the need to develop herbal agents that are effective as alternative. This study was designed to evaluate the antinociceptive of C. volkensii and M. obscura growing in Embu County, Kenya. Experimental animals were divided into four groups; normal group, diseased negative control group, diseased reference group and diseased experimental groups. Pain was induced into rats using formalin. The experimental groups were treated with leaf extracts of the plants at dose levels of 50 mg/kg, 100 mg/kg and 150 mg/kg. Anti-nociceptive activities in rats were compared with diclofenac (15 mg/kg) as the standard conventional drug. In antinociceptive study, the leaf extract C. volkensii reduced pain by between 6.82-15.24% only in the early phase while the leaf extracts of M. obscura reduced pain by between 12.39-34.81% (in the early phase) and between 6.4-12.4% (in the late phase). Diclofenac reduced pain by between 7.58-9.66% (in the early phase) and by 69.87% in the late phase. Further, the phytochemical screening results showed that the extracts of C. volkensii had flavonoids, steroids and phenolics while the leaf extracts M. obscura had phenolics, terpenoids and saponins. flavonoids. Therefore, the study has established that the DCM: methanolic leaf extracts of Caesalpinia volkensii and Maytenus obscura are effective in management of pain.

Published
2015

9. Determination of Hematological Effects of Methanolic Leaf Extract of Vernonia lasiopus in Normal Mice

Author

Aliyu Umar, Mworia J. Kiambi, Gitahi S Maina, Njagi Nm Eliud, Njoroge W. Ann, Mwonjoria K. John, Njagi J. Muriithi, Mwangi B. Maina, Juma K Kelvin, and Ngugi M Piero

Subjects
Hematological disorders, Traditional medicine, Phytochemical, business.industry, Chemical constituents, Immunology, Therapeutic effect, Vernonia lasiopus, Medicine, Medicinal plants, business, Thrombopoietin
Abstract

Hematologicarl disordes have attained epidemic proportions worldwide today. As a result, many people turn to medicinal plants for treatment thereby boosting and enhancing health because professional care is not immediately available, is too inconvenient, costly and time consuming. Certain medicinal plants are believed to promote positive health and maintain organic resistance against infection. The use of medicinal plants which are readily available and arguably efficacious would therefore over a better and affordable alternative for boosting and enhancing health. Assessment of hematological parameters can be used to determine the extent of deleterious effect of foreign compounds including plant extracts on the bloodconstituents of an animal. Various chemical constituents of Vernonia lasiopus are believed to possess therapeutic effects on hematological parameters. However, these effects have not been subjected to systematic studies to substantiate the therapeutic claims made regarding their clinical utility. This study was designed to investigate the hematological effects of V. lasiopus (O. Hoffman) in normal mice. The experimental groups were treated with leaf extracts at concentration of 50 mg/kg and 100 mg/kg orally once per two days for a period of fourteen days. Hematological parameters and indices were determined from unclotted blood samples using standard protocols. Presence of various types of phytochemicals was assessed using standard procedures. The leaf extract of V. lasiopus (O. Hoffman) induced changes in erythrocytes and related parameter profiles, total and differential WBC counts, platelets and their related parameters in normal mice at the two tested dose levels of 50 mg/kgbw and 100 mg/kgbw. Further, the phytochemical screening results showed that the leaf extract of V. lasiopus (O. Hoffman) have phytochemicals associated with erythropoietin promoting activity, immunostimulatory activities and thrombopoietin stimulation.

Published
2015

10. The ENIGMA Consortium: large-scale collaborative analyses of neuroimaging and genetic data

Author

Pm, Thompson, Jl, Stein, Se, Medland, Dp, Hibar, Aa, Vasquez, Me, Renteria, Toro R, Jahanshad N, Schumann G, Franke B, Mj, Wright, Ng, Martin, Agartz I, Alda M, Alhusaini S, Almasy L, Almeida J, Alpert K, Nc, Andreasen, Oa, Andreassen, Lg, Apostolova, Appel K, Nj, Armstrong, Aribisala B, Me, Bastin, Bauer M, Ce, Bearden, Bergmann O, Eb, Binder, Blangero J, Hj, Bockholt, Bøen E, Bois C, Di, Boomsma, Booth T, Ij, Bowman, Bralten J, Rm, Brouwer, Hg, Brunner, Dg, Brohawn, Rl, Buckner, Buitelaar J, Bulayeva K, Jr, Bustillo, Vd, Calhoun, Dm, Cannon, Rm, Cantor, Ma, Carless, Caseras X, Gl, Cavalleri, Mm, Chakravarty, Kd, Chang, Cr, Ching, Christoforou A, Cichon S, Vp, Clark, Conrod P, Coppola G, Crespo-Facorro B, Je, Curran, Czisch M, Ij, Deary, Ej, Geus, den Braber A, Delvecchio G, Depondt C, de Haan L, Gi, Zubicaray, Dima D, Dimitrova R, Djurovic S, Dong H, Donohoe G, Duggirala R, Td, Dyer, Ehrlich S, Cj, Ekman, Elvsåshagen T, Emsell L, Erk S, Espeseth T, Fagerness J, Fears S, Fedko I, Fernández G, Se, Fisher, Foroud T, Pt, Fox, Francks C, Frangou S, Em, Frey, Frodl T, Frouin V, Garavan H, Giddaluru S, Dc, Glahn, Godlewska B, Rz, Goldstein, Rl, Gollub, Hj, Grabe, Grimm O, Gruber O, Guadalupe T, Re, Gur, Rc, Gur, Hh, Göring, Hagenaars S, Hajek T, Gb, Hall, Hall J, Hardy J, Ca, Hartman, Hass J, Sn, Hatton, Uk, Haukvik, Hegenscheid K, Heinz A, Ib, Hickie, Bc, Ho, Hoehn D, Pj, Hoekstra, Hollinshead M, Aj, Holmes, Homuth G, Martine Hoogman, Le, Hong, Hosten N, Jj, Hottenga, He, Hulshoff Pol, Ks, Hwang, Cr, Jack Jr, Jenkinson M, Johnston C, Eg, Jönsson, Rs, Kahn, Kasperaviciute D, Kelly S, Kim S, Kochunov P, Koenders L, Krämer B, Jb, Kwok, Lagopoulos J, Laje G, Landen M, Ba, Landman, Lauriello J, Sm, Lawrie, Ph, Lee, Le Hellard S, Lemaître H, Cd, Leonardo, Cs, Li, Liberg B, Dc, Liewald, Liu X, Lm, Lopez, Loth E, Lourdusamy A, Luciano M, Macciardi F, Mw, Machielsen, Gm, Macqueen, Uf, Malt, Mandl R, Ds, Manoach, Jl, Martinot, Matarin M, Ka, Mather, Mattheisen M, Mattingsdal M, Meyer-Lindenberg A, McDonald C, Am, Mcintosh, Fj, Mcmahon, Kl, Mcmahon, Meisenzahl E, Melle I, Milaneschi Y, Mohnke S, Gw, Montgomery, Dw, Morris, Ek, Moses, Ba, Mueller, Muñoz Maniega S, Tw, Mühleisen, Müller-Myhsok B, Mwangi B, Nauck M, Nho K, Te, Nichols, Lg, Nilsson, Ac, Nugent, Nyberg L, Rl, Olvera, Oosterlaan J, Ra, Ophoff, Pandolfo M, Papalampropoulou-Tsiridou M, Papmeyer M, Paus T, Pausova Z, Gd, Pearlson, Bw, Penninx, Cp, Peterson, Pfennig A, Phillips M, Gb, Pike, Jb, Poline, Sg, Potkin, Pütz B, Ramasamy A, Rasmussen J, Rietschel M, Rijpkema M, Sl, Risacher, Jl, Roffman, Roiz-Santiañez R, Romanczuk-Seiferth N, Ej, Rose, Na, Royle, Rujescu D, Ryten M, Ps, Sachdev, Salami A, Td, Satterthwaite, Savitz J, Aj, Saykin, Scanlon C, Schmaal L, Hg, Schnack, Aj, Schork, Sc, Schulz, Schür R, Seidman L, Shen L, Jm, Shoemaker, Simmons A, Sm, Sisodiya, Smith C, Jw, Smoller, Jc, Soares, Sr, Sponheim, Sprooten E, Jm, Starr, Vm, Steen, Strakowski S, Strike L, Sussmann J, Pg, Sämann, Teumer A, Aw, Toga, Tordesillas-Gutierrez D, Trabzuni D, Trost S, Turner J, Van den Heuvel M, Nj, Wee, van Eijk K, Tg, Erp, Ne, Haren, van 't Ent D, Mj, Tol, Mc, Valdés Hernández, Dj, Veltman, Versace A, Völzke H, Walker R, Walter H, Wang L, Jm, Wardlaw, Me, Weale, Mw, Weiner, Wen W, Lt, Westlye, Hc, Whalley, Cd, Whelan, White T, Am, Winkler, Wittfeld K, Woldehawariat G, Wolf C, Zilles D, Mp, Zwiers, Thalamuthu A, Pr, Schofield, Nb, Freimer, Ns, Lawrence, Drevets W, The Alzheimer’s Disease Neuroimaging Initiative, Epigen Consortium, Laboratory of Neuro Imaging [Los Angeles] (LONI), University of California [Los Angeles] (UCLA), University of California-University of California, David Geffen School of Medicine [Los Angeles], Medstar Research Institute, Keck School of Medicine [Los Angeles], University of Southern California (USC), Génétique Humaine et Fonctions Cognitives, Institut Pasteur [Paris]-Centre National de la Recherche Scientifique (CNRS), Institute of Psychiatry, Psychology & Neuroscience, King's College London, King‘s College London, Department of Psychiatry, Donders Centre for Neuroscience, Radboud university [Nijmegen]-Radboud University Medical Center [Nijmegen]-Radboud university [Nijmegen]-Radboud University Medical Center [Nijmegen], Genetic Epidemiology Lab [Brisbane], Queensland Institute of Medical Research, Universidad Complutense de Madrid = Complutense University of Madrid [Madrid] (UCM), KG Jebsen Centre for Psychosis Research, University of Oslo (UiO)-Institute of Clinical Medicine-Oslo University Hospital [Oslo], Dalhousie University [Halifax], Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland (RCSI), Department of Genetics, Southwest Foundation for Biomedical Research, Departamento de Matemática Pura, Faculdade de Ciências (UNIVERSIDADE DO PORTO), Universidade do Porto = University of Porto, Department of Psychiatry and Psychotherapy, University of Edinburgh, Center for Sepsis Control & Care, Jena University Hospital, Division Genetic Epidemiology in Psychiatry, Central Institute of Mental Health [Mannheim], Medical Faculty [Mannheim]-Medical Faculty [Mannheim], Texas Biomedical Research Institute [San Antonio, TX], Donders Institute for Brain, Cognition and Behaviour, Radboud university [Nijmegen], Brain Center Rudolf Magnus, Department of Psychiatry, UMC Utrecht, Utrecht 3584 CX, The Netherlands, Radboud University Medical Center [Nijmegen], Department of Psychiatry [Boston], Massachusetts General Hospital [Boston], Karakter Child and Adolescent Psychiatry University Centre [Nijmegen], N.I. Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow 119333, Russia, Human Genetics Branch, National Institutes of Health [Bethesda] (NIH)-National Institute of Mental Health (NIMH), Department of Genomics, Douglas Mental Health University Institute, McGill University = Université McGill [Montréal, Canada], sans affiliation, Università degli Studi di Salermo, Università degli Studi di Salerno (UNISA), Centro de Investigación Biomédica en Red Salud Mental [Madrid] (CIBER-SAM), Bijvoet Center of Biomolecular Research [Utrecht], Utrecht University [Utrecht], Biological Psychology, Neuroscience Campus Amsterdam & EMGO Institute for Health and Care Research, VU University & VU Medical Center, Amsterdam 1081 BT, The Netherlands, Department of Neurology, Hôpital Erasme [Bruxelles] (ULB), Faculté de Médecine [Bruxelles] (ULB), Université libre de Bruxelles (ULB)-Université libre de Bruxelles (ULB)-Faculté de Médecine [Bruxelles] (ULB), Université libre de Bruxelles (ULB)-Université libre de Bruxelles (ULB), Department of Psychiatry [Pittsburgh], University of Pittsburgh School of Medicine, Pennsylvania Commonwealth System of Higher Education (PCSHE)-Pennsylvania Commonwealth System of Higher Education (PCSHE), School of Psychology, University of Queensland, University of Queensland [Brisbane], Department of Hematology, 'Ion Chiricuta' Cancer Institute, University of Oslo (UiO), The University of Texas Health Science Center at Houston (UTHealth), MetaGenoPolis, Institut National de la Recherche Agronomique (INRA), Department of Psychiatry, Division of Medical Psychology, Champalimaud Neuroscience Programme, Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indiana University System-Indiana University System, Language and Genetics Department [Nijmegen], Max Planck Institute for Psycholinguistics, Max-Planck-Gesellschaft-Max-Planck-Gesellschaft, Icahn School of Medicine at Mount Sinai [New York] (MSSM), Division of Hemato-Oncology, Saint Anna Children's Hospital [Vienne] = St Anna Kinderspital (St. Anna Children's Hospital), Psychiatry and Psychotherapy, Service NEUROSPIN (NEUROSPIN), Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), University of Vermont [Burlington], Haukeland University Hospital, University of Bergen (UiB), Dpt of Psychiatry [New Haven], Yale School of Medicine [New Haven, Connecticut] (YSM), Laboratory of Molecular Neuropsychiatry, Athinoula A. Martinos Center for Biomedical Imaging, Harvard Medical School [Boston] (HMS)-Massachusetts General Hospital [Boston], HELIOS Klinikum Stralsund Hanseatic-Greifswald University Hospital, Department of Geriatric Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, Universität Heidelberg [Heidelberg], International Max Planck Research School for Language Sciences (IMPRS ), Lancaster University, Georgia Institute of Technology [Atlanta], Greifswald University Hospital, Charité - UniversitätsMedizin = Charité - University Hospital [Berlin], Clinical Research Unit, Brain & Mind Research Institute-The University of Sydney, Department of Psychiatry, University of Iowa, University of Iowa [Iowa City], Max Planck Institute of Psychiatry, Max-Planck-Gesellschaft, University Medical Center Groningen [Groningen] (UMCG), Interfaculty Institute for Genetics and Functional Genomics, Universität Greifswald - University of Greifswald, Mental Health Sciences Unit, University College of London [London] (UCL), University Medical Center [Utrecht], Department of Radiology [Rochester], Mayo Clinic [Rochester], Department of Clinical Neurology [Oxford], University of Oxford [Oxford]-FMRIB Centre- John Radcliffe Hospital [Oxford University Hospital], Centre for the Cellular Basis of Behavior, Bureau d'Économie Théorique et Appliquée (BETA), Institut National de la Recherche Agronomique (INRA)-Université de Strasbourg (UNISTRA)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Department of Medicine, Imperial College London, MetaCase [Jyväskylä], Structure et Réactivité des Systèmes Moléculaires Complexes (SRSMC), Institut de Chimie du CNRS (INC)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), University of Maryland [Baltimore County] (UMBC), University of Maryland System-University of Maryland System-University of Maryland School of Medicine, University of Maryland System, Sahlgrenska Academy at University of Gothenburg [Göteborg], Broad Institute of MIT and Harvard (BROAD INSTITUTE), Harvard Medical School [Boston] (HMS)-Massachusetts Institute of Technology (MIT)-Massachusetts General Hospital [Boston], Université de Cergy Pontoise (UCP), Université Paris-Seine, National Institutes of Health [Bethesda] (NIH), Department of Forensic and Neurodevelopmental Sciences, University of California [Irvine] (UCI), University of California, Neuroimagerie en psychiatrie (U1000), Université Paris-Sud - Paris 11 (UP11)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Clinical And Experimental Epilepsy, Centre for Healthy Brain Ageing, School of Psychiatry, Faculty of Medicine, University of New South Wales, Sydney, Australia, Department of Life Sciences, Mathematical Sciences Institute (MSI), Australian National University (ANU), Centre for Advanced Imaging, Division of Mental Health and Addiction, Oslo University Hospital [Oslo], VU University Medical Center [Amsterdam], Metacohorts Consortium, Translational Centre for Regenerative Medicine (TRM), Department of Cell Therapy, Universität Leipzig [Leipzig]-Universität Leipzig [Leipzig], Institute of Clinical Chemistry and Laboratory Medicine, Indiana Alzheimer Disease Center, Department of Statistics [Warwick], University of Warwick [Coventry], Department of Health Science, Division of Health and Rehabilitation, Luleå University of Technology (LUT), University Medical Center [Utrecht]-Brain Center Rudolf Magnus, McConnell Brain Imaging Centre (MNI), Montreal Neurological Institute and Hospital, McGill University = Université McGill [Montréal, Canada]-McGill University = Université McGill [Montréal, Canada], Departments of Physiology and Nutritional Sciences, University of Toronto, Toronto, Canada, Technische Universität Dresden = Dresden University of Technology (TU Dresden), Modelling brain structure, function and variability based on high-field MRI data (PARIETAL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), Statistical Genetics Group, Respiratory Epidemiology and Public Health, Imperial College London-School of public health, The University of Hong Kong (HKU)-The University of Hong Kong (HKU)-MRC-HPA Centre for Environment and Health, Donders Center for Cognitive Neuroimaging, Donders Centre for Cognitive Neuroimaging, Radboud university [Nijmegen]-Radboud university [Nijmegen], Institut Parisien de Chimie Moléculaire (IPCM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Centre for Healthy Brain Ageing, University of New South Wales [Sydney] (UNSW), Umeå Centre for Functional Brain Imaging (UFBI), Umeå University, Umeå 901 87, Sweden, University of Pennsylvania [Philadelphia], Department of Cognitive Sciences [San Diego], University of California [San Diego] (UC San Diego), Indiana University System, Natbrainlab, Department of Forensic and Neurodevelopmental Sciences, Institute of psychiatry-King‘s College London, Institute of Neurology [London], Laboratoire des symbioses tropicales et méditerranéennes (UMR LSTM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Université Montpellier 1 (UM1)-Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Université Montpellier 2 - Sciences et Techniques (UM2)-Université de Montpellier (UM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Stanley Center for Psychiatric Research, Harvard Medical School [Boston] (HMS)-Massachusetts Institute of Technology (MIT)-Massachusetts General Hospital [Boston]-Harvard Medical School [Boston] (HMS)-Massachusetts Institute of Technology (MIT)-Massachusetts General Hospital [Boston], King Faisal Specialist Hospital and Research Centre, Georgia State University, University System of Georgia (USG), Department of Psychiatry and Human Behavior [Irvine], Leiden University Medical Center (LUMC), Institute for Community Medicine, School of Music and Music Education (UNSW), Science & Technology Information Institute, Shandong Academy of Agricultural Science, University of California [San Francisco] (UCSF), Department of Physics [Hong Kong University of Science and Technology], Hong Kong University of Science and Technology (HKUST), Department of Psychology [Oslo], Faculty of Social Sciences [Oslo], University of Oslo (UiO)-University of Oslo (UiO), Research Laboratory for Archaeology & the History of Art, German Research Center for Neurodegenerative Diseases - Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Dundee Technopole, CXR Biosciences Ltd, Georg-August-University [Göttingen], Centre for Healthy Brain Ageing, School of Psychiatry, University of New South Wales, Sydney 2052, Australia, Prince of Wales Medical Research Institute, Center for Neurobehavioral Genetics, Wales Institute of Cognitive Neuroscience, Cardiff University, Complutense University of Madrid (UCM), Universidade do Porto [Porto], Texas Biomedical Research Institute [San Antonio, Texas], Karakter Child and Adolescent Psychiatry University Centre, McGill University, Bijvoet Center of Biomolecular Research, Université Libre de Bruxelles [Bruxelles] (ULB)-Hôpital Erasme (Bruxelles), St. Anna Children's Hospital, Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, University of Bergen (UIB), Yale University School of Medicine, Massachusetts General Hospital [Boston]-Harvard Medical School [Boston] (HMS), Charité - Universitätsmedizin Berlin / Charite - University Medicine Berlin, Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Sud - Paris 11 (UP11), McGill University-McGill University, Technische Universität Dresden (TUD), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Inria Saclay - Ile de France, Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Department of Physics [Kowloon], University of California (UC)-University of California (UC), QIMR Berghofer Medical Research Institute, Institut Pasteur [Paris] (IP)-Centre National de la Recherche Scientifique (CNRS), Department of Clinical Neurosciences, Neurology Division, Karolinska Institutet, Karolinska University Hospital [Stockholm], Pennsylvania Commonwealth System of Higher Education (PCSHE), Northwestern University [Chicago, Ill. USA], Norwegian Centre for Mental Disorders Research [Oslo] (NORMENT), University of Oslo (UiO)-Haukeland University Hospital, University of Bergen (UiB)-University of Bergen (UiB)-Oslo University Hospital [Oslo], Ernst-Moritz-Arndt-Universität Greifswald, School of Mathematics and Statistics, Brain Research Imaging Centre, Imaging Sciences, University Hospital Carl Gustav Carus [Dresden, Germany], Semel Institute for Neuroscience and Human Behavior [Los Angeles, Ca], Institute of Clinical Medicine [Oslo], Faculty of Medicine [Oslo], Royal Hospital for Sick Children [Edinburgh], Department of General Practice/EMGO Institute, Centre for Cognitive Ageing and Cognitive Epidemiology (CCACE), University of Edinburgh-Medical Research Council (MRC), Radboud University [Nijmegen], Brain Centre Rudolf Magnus [Utrecht], Department of Human Genetics [Nijmegen], Psychiatric and Neurodevelopmental Genetics Unit, Harvard University, Russian Academy of Sciences [Moscow] (RAS), The University of New Mexico [Albuquerque], The Mind Research Network, Department of Electrical and Computer Engineering [Albuquerque] (ECE Department), National University of Ireland [Galway] (NUI Galway), University of California (UC), Institute of Psychological Medicine and Clinical Neurosciences, Centre for Addiction and Mental Health [Toronto] (CAMH), Institute of Biomaterials and Biomedical Engineering [Toronto, ON, Canada] (IBBME), University of Toronto, Stanford School of Medicine [Stanford], Stanford Medicine, Stanford University-Stanford University, Universität Bonn = University of Bonn, Jülich Research Centre, University of Basel (Unibas), Centre de recherche du CHU Sainte-Justine / Research Center of the Sainte-Justine University Hospital [Montreal, Canada], Université de Montréal (UdeM)-CHU Sainte Justine [Montréal], Fundación Marqués de Valdecilla-Instituto de Formación e Investigación Marqués de Valdecilla (IFIMAV), Centre for Cognitive Ageing and Cognitive Epidemiology, Trinity College Dublin, Department of Psychiatry Massachusetts General Hospital (MGH), South Texas Veterans Health Care System, San Antonio, Texas 78229, USA, University Hospital Regensburg, Hartford Hospital, University of Oxford, HELIOS Klinikum Stralsund Hanseatic, University of Heidelberg, Medical Faculty, Georg-August-University = Georg-August-Universität Göttingen, University of Pennsylvania, McMaster University [Hamilton, Ontario], UCL, Institute of Neurology [London], Brain and Mind Research Institute, University of Technology Sydney (UTS), Diakonhjemmet Hospital, University of Maryland School of Medicine, Oakland University, University of Rochester School of Medicine, Oxford Centre for Functional Magnetic Resonance Imaging of the Brain (FMRIB), South London and Maudsley NHS Foundation Trust, Institute for Molecular Medicine Finland [Helsinki] (FIMM), Helsinki Institute of Life Science (HiLIFE), Helsingin yliopisto = Helsingfors universitet = University of Helsinki-Helsingin yliopisto = Helsingfors universitet = University of Helsinki, University of Maryland [Baltimore], Neuroscience Research Australia (NeuRA), University of Gothenburg (GU), Karolinska Institutet [Stockholm], Vanderbilt University [Nashville], University of Missouri [Columbia] (Mizzou), University of Missouri System, Service Hospitalier Frédéric Joliot (SHFJ), Université Paris-Sud - Paris 11 (UP11)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de la Santé et de la Recherche Médicale (INSERM), Clinatec - Centre de recherche biomédicale Edmond J.Safra (SCLIN), Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre Hospitalier Universitaire [Grenoble] (CHU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Department of Neuroscience, Yale University School of Medicine, Columbia University Medical Center (CUMC), Columbia University [New York], University of Nottingham, UK (UON), University of California [Irvine] (UC Irvine), Università degli Studi di Milano = University of Milan (UNIMI), Hotchkiss Brain Institute, University of Calgary, Oslo and Akershus University College of Applied Sciences [Oslo] (HiOA), Centre for Healthy Brain Ageing (CHeBA), School of Psychiatry, UNSW Medicine, University of New South Wales, Sydney, Aarhus University [Aarhus], Sorlandet Hospital HF, University Hospital Mannheim | Universitätsmedizin Mannheim, Centre for Advanced Imaging [Brisbane] (CAI), Ludwig Maximilian University [Munich] (LMU), Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, The University of Western Australia (UWA), University of Minnesota [Morris], University of Minnesota System, Munich Cluster for systems neurology [Munich] (SyNergy), Technische Universität Munchen - Université Technique de Munich [Munich, Allemagne] (TUM)-Ludwig-Maximilians-Universität München (LMU), The University of Texas Medical School at Houston, Indiana State University, Stockholm Brain Institute [Stockholm, Sweden], Stockholm University, Umeå University, University of Texas Health Science Center, Department of Clinical Neuropsychology, University of Amsterdam [Amsterdam] (UvA), Rotman Research Institute at the Baycrest Centre (RRI), The Hospital for sick children [Toronto] (SickKids), University of Pittsburgh (PITT), University of California [Berkeley] (UC Berkeley), King's College, Reta Lila Weston Institute, UCL Institute of Neurology, Department of Molecular Neuroscience, University College of London [London] (UCL)-Institute of Neurology, University of Cantabria, Santander, Research Triangle Institute International (RTI International), Martin-Luther-Universität Halle Wittenberg (MLU), Prince of Wales Hospital, Karolinska Institute, Laureate institute for brain research, Tulsa, University of Tulsa, Department of Cognitive Sciences [Univ California San Diego] (CogSci - UC San Diego), University of Minnesota Medical School, Beth Israel Deaconess Medical Center [Boston] (BIDMC), Harvard Medical School [Boston] (HMS), Maudsley NHS Foundation Trust and Institute of Psychiatry, NIHR Biomedical Research Centre [London], Guy's and St Thomas' NHS Foundation Trust-King‘s College London, Edinburgh Dementia Prevention & Centre for Clinical Brain Sciences, Center for Human Genetic Research, VA NY Harbor Health Care System, Alzheimer Scotland Dementia Research Centre, Department of Psychiatry and Behavioral Neuroscience [UC, Cincinnati], University of Cincinnati (UC), University of Cincinnati College of Medicine, Marqués de Valdecilla University Hospital [Santander], King Faisal Specialist Hospital and Resarch Centre [Riyadh, Saudi Arabia] (KFSHRC), Psychiatry and Leiden Institute for Brain and Cognition, Universiteit Leiden-Universiteit Leiden, Universiteit Leiden, Department of Biological Psychology [Amsterdam], Vrije Universiteit Amsterdam [Amsterdam] (VU), The Centre for Regenerative Medicine, Berlin School of Mind and Brain [Berlin], Humboldt University Of Berlin, University of California [San Francisco] (UC San Francisco), School of Chemistry, University of Edinburgh, Department of Public Health, Erasmus University Medical Centre, Rotterdam, Erasmus University Medical Centre, Rotterdam, Department of Psychiatry and Biobehavioral Sciences, University of Exeter, Janssen Research & Development, A complete listing of ADNI investigators is available at http://adni.loni.usc.edu/wp-content/uploads/how_to_apply/ADNI_Acknowledgement_List.pdf The work reviewed here was funded by a large number of federal and private agencies worldwide, listed in Stein et al. (2012), the funding for listed consortia is also itemized in Stein et al. (2012)., Medical Oncology, Epidemiology, Clinical Chemistry, Cardiology, Neurosciences, Child and Adolescent Psychiatry / Psychology, Radboud University Medical Center [Nijmegen]-Radboud university [Nijmegen]-Radboud University Medical Center [Nijmegen]-Radboud university [Nijmegen], Universidade do Porto, FMRIB Centre- John Radcliffe Hospital [Oxford University Hospital]-University of Oxford [Oxford], Université de Lorraine (UL)-Université de Strasbourg (UNISTRA)-Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Sud - Paris 11 (UP11), Inria Saclay - Ile de France, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Service NEUROSPIN (NEUROSPIN), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences, Smoller, Jordan, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre Hospitalier Universitaire [Grenoble] (CHU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), ANS - Amsterdam Neuroscience, Adult Psychiatry, Other departments, University of Oxford [Oxford]- John Radcliffe Hospital [Oxford University Hospital]-FMRIB Centre, and Université Paris-Sud - Paris 11 (UP11)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)

Subjects
endocrine system, Multi-site, Cognitive Neuroscience, [SDV]Life Sciences [q-bio], body-mass index, Clinical Neurology, multivariate parallel ica, Neuroimaging, methods [Genome-Wide Association Study], human brain structure, methods [Brain Mapping], Behavioral Neuroscience, Cellular and Molecular Neuroscience, ddc:150, Meta-Analysis as Topic, cortical surface-area, Genetics, voxel-based morphometry, GWAS, Humans, Cooperative Behavior, disease risk variant, Brain Mapping, MRI, Consortium, Meta-analysis, white-matter microstructure, SI: Genetic Neuroimaging in Aging and Age-Related Diseases, Psychiatry and Mental health, Neurology, Radiology Nuclear Medicine and imaging, quantitative trait loci, RC0321, genome-wide association, [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], tensor-based morphometry, methods [Neuroimaging], Genome-Wide Association Study
Abstract

The Enhancing NeuroImaging Genetics through Meta-Analysis (ENIGMA) Consortium is a collaborative network of researchers working together on a range of large-scale studies that integrate data from 70 institutions worldwide. Organized into Working Groups that tackle questions in neuroscience, genetics, and medicine, ENIGMA studies have analyzed neuroimaging data from over 12,826 subjects. In addition, data from 12,171 individuals were provided by the CHARGE consortium for replication of findings, in a total of 24,997 subjects. By meta-analyzing results from many sites, ENIGMA has detected factors that affect the brain that no individual site could detect on its own, and that require larger numbers of subjects than any individual neuroimaging study has currently collected. ENIGMA’s first project was a genome-wide association study identifying common variants in the genome associated with hippocampal volume or intracranial volume. Continuing work is exploring genetic associations with subcortical volumes (ENIGMA2) and white matter microstructure (ENIGMA-DTI). Working groups also focus on understanding how schizophrenia, bipolar illness, major depression and attention deficit/hyperactivity disorder (ADHD) affect the brain. We review the current progress of the ENIGMA Consortium, along with challenges and unexpected discoveries made on the way. This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.

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