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Chen Y, Li HT, Luo X, Li G, Ide JS, Li CSR. The effects of alcohol use severity and polygenic risk on gray matter volumes in young adults. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2025:2025.01.20.25320842. [PMID: 39974144 PMCID: PMC11838964 DOI: 10.1101/2025.01.20.25320842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 02/21/2025]
Abstract
Genetic factors contribute to alcohol misuse. Chronic alcohol consumption is associated with decreases in gray matter volumes (GMVs) of the brain. However, it remains unclear whether or how genetic risks may alter GMVs independent of the effects of alcohol exposure. Here, we employed the Human Connectome Project data of neurotypical adults (n = 995; age 22-35; 618 women) and, with voxel-based morphometry analysis, computed the GMVs of 166 regions in the automated anatomical atlas 3. Alcohol use behaviors were assessed with the Semi-Structured Assessment for the Genetics of Alcoholism. Alcohol use severity was quantified by the first principal component (PC1) identified of principal component analysis of 15 drinking measures. Polygenic risk scores (PRS) for alcohol dependence were computed for all subjects using the Psychiatric Genomics Consortium study of alcohol dependence as the base sample. With age, sex, race, and total intracranial volume as covariates, we evaluated the relationships of regional GMVs with PC1 and PRS together in a linear regression. PC1 was negatively correlated with GMVs of right insula and Heschl's gyrus, and PRS was positively correlated with GMVs of left posterior orbitofrontal cortex, bilateral intralaminar nuclei of the thalamus and lingual gyri. These findings suggest distinct volumetric neural markers of drinking severity and genetic risks of alcohol misuse. Notably, in contrast to volumetric reduction, the genetic risks of dependent drinking may involve larger regional volumes in the reward, emotion, and saliency circuits.
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Affiliation(s)
- Yu Chen
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06520, U.S.A
| | | | - Xingguang Luo
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06520, U.S.A
| | - Guangfei Li
- Department of Biomedical Engineering, College of Chemistry and Life Science, Beijing University of Technology, Beijing, China
- Beijing International Science and Technology Cooperation Base for Intelligent Physiological Measurement and Clinical Transformation, Beijing, China
| | - Jaime S. Ide
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06520, U.S.A
| | - Chiang-Shan R. Li
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06520, U.S.A
- Department of Neuroscience, Yale University School of Medicine, New Haven, CT 06520, U.S.A
- Inter-department Neuroscience Program, Yale University, New Haven, CT 06520, U.S.A
- Wu Tsai Institute, Yale University, New Haven, CT 06520, U.S.A
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Cservenka A, Azma S. Neural correlates associated with a family history of alcohol use disorder: A narrative review of recent findings. ALCOHOL, CLINICAL & EXPERIMENTAL RESEARCH 2025; 49:62-80. [PMID: 39552054 DOI: 10.1111/acer.15488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2024] [Accepted: 10/22/2024] [Indexed: 11/19/2024]
Abstract
A family history of alcohol use disorder (AUD) is associated with a significantly increased risk of developing AUD in one's lifetime. The previously reviewed literature suggests there are structural and functional neurobiological markers associated with familial AUD, but to our knowledge, no recent review has synthesized the latest findings across neuroimaging studies in this at-risk population. For this narrative review, we conducted keyword searches in electronic databases to find cross-sectional and longitudinal studies (2015-present) that used magnetic resonance imaging (MRI), diffusion tensor imaging, task-based functional MRI (fMRI), and/or resting state functional connectivity MRI. These studies were used to identify gray matter, white matter, and brain activity markers of risk and resilience in family history positive (FHP) individuals with a family history of AUD. FHP individuals have greater early adolescent thinning of executive functioning (frontal lobe) regions; however, some studies have reported null effects or greater gray matter volume and thickness relative to family history negative (FHN) peers without familial AUD. FHP individuals also have white matter microstructure alterations, such as reduced integrity of fronto-striatal pathways. Recent fMRI studies have found greater inhibitory control activity in FHP individuals, while reward-related findings are mixed. A growing interest in identifying intrinsic connectivity differences between FHP and FHN individuals has emerged in recent years. Familial AUD is related to both structural and functional brain alterations. Research should continue to focus on (1) longitudinal analyses with larger samples, (2) assessment of personal substance use and prenatal exposure to alcohol, (3) the effects of comorbid familial psychopathology, (4) examination of sex-specific markers of risk and resilience, (5) neural predictors of alcohol use initiation, and (6) brain-behavior relationships. These efforts would aid the design of neurobiologically informed prevention and intervention efforts focused on this at-risk population.
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Affiliation(s)
| | - Sheeva Azma
- Seeds of Science, New York City, New York, USA
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3
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Moodie JE, Buchanan C, Furtjes A, Conole E, Stolicyn A, Corley J, Ferguson K, Hernandez MV, Maniega SM, Russ TC, Luciano M, Whalley H, Bastin ME, Wardlaw J, Deary I, Cox S. Brain maps of general cognitive function and spatial correlations with neurobiological cortical profiles. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.12.17.628670. [PMID: 39764021 PMCID: PMC11702631 DOI: 10.1101/2024.12.17.628670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/30/2025]
Abstract
In this paper, we attempt to answer two questions: 1) which regions of the human brain, in terms of morphometry, are most strongly related to individual differences in domain-general cognitive functioning (g)? and 2) what are the underlying neurobiological properties of those regions? We meta-analyse vertex-wise g-cortical morphometry (volume, surface area, thickness, curvature and sulcal depth) associations using data from 3 cohorts: the UK Biobank (UKB), Generation Scotland (GenScot), and the Lothian Birth Cohort 1936 (LBC1936), with the meta-analytic N = 38,379 (age range = 44 to 84 years old). These g-morphometry associations vary in magnitude and direction across the cortex (|β| range = -0.12 to 0.17 across morphometry measures) and show good cross-cohort agreement (mean spatial correlation r = 0.57, SD = 0.18). Then, to address (2), we bring together existing - and derive new - cortical maps of 33 neurobiological characteristics from multiple modalities (including neurotransmitter receptor densities, gene expression, functional connectivity, metabolism, and cytoarchitectural similarity). We discover that these 33 profiles spatially covary along four major dimensions of cortical organisation (accounting for 65.9% of the variance) and denote aspects of neurobiological scaffolding that underpin the spatial patterning of MRI-cognitive associations we observe (significant |r| range = 0.21 to 0.56). Alongside the cortical maps from these analyses, which we make openly accessible, we provide a compendium of cortex-wide and within-region spatial correlations among general and specific facets of brain cortical organisation and higher order cognitive functioning, which we hope will serve as a framework for analysing other aspects of behaviour-brain MRI associations.
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Affiliation(s)
- Joanna E. Moodie
- Lothian Birth Cohorts, Department of Psychology, The University of Edinburgh, UK
- Scottish Imaging Network, A Platform for Scientific Excellence (SINAPSE) Collaboration, Edinburgh, UK
| | - Colin Buchanan
- Lothian Birth Cohorts, Department of Psychology, The University of Edinburgh, UK
- Scottish Imaging Network, A Platform for Scientific Excellence (SINAPSE) Collaboration, Edinburgh, UK
| | - Anna Furtjes
- Lothian Birth Cohorts, Department of Psychology, The University of Edinburgh, UK
| | - Eleanor Conole
- Lothian Birth Cohorts, Department of Psychology, The University of Edinburgh, UK
| | - Aleks Stolicyn
- Centre for Clinical Brain Sciences, University of Edinburgh, UK
| | - Janie Corley
- Lothian Birth Cohorts, Department of Psychology, The University of Edinburgh, UK
| | - Karen Ferguson
- Lothian Birth Cohorts, Department of Psychology, The University of Edinburgh, UK
- Centre for Clinical Brain Sciences, University of Edinburgh, UK
| | - Maria Valdes Hernandez
- Centre for Clinical Brain Sciences, University of Edinburgh, UK
- Row Fogo Centre for Research into Small Vessel Diseases
| | - Susana Munoz Maniega
- Lothian Birth Cohorts, Department of Psychology, The University of Edinburgh, UK
- Centre for Clinical Brain Sciences, University of Edinburgh, UK
| | - Tom C. Russ
- Lothian Birth Cohorts, Department of Psychology, The University of Edinburgh, UK
- Centre for Clinical Brain Sciences, University of Edinburgh, UK
- Alzheimer Scotland Dementia Research Centre, University of Edinburgh, UK
- Dementia Network, NHS Research Scotland
| | | | - Heather Whalley
- Centre for Clinical Brain Sciences, University of Edinburgh, UK
| | - Mark E. Bastin
- Lothian Birth Cohorts, Department of Psychology, The University of Edinburgh, UK
| | - Joanna Wardlaw
- Centre for Clinical Brain Sciences, University of Edinburgh, UK
- UK Dementia Research Institute
- Row Fogo Centre for Research into Small Vessel Diseases
| | - Ian Deary
- Lothian Birth Cohorts, Department of Psychology, The University of Edinburgh, UK
| | - Simon Cox
- Lothian Birth Cohorts, Department of Psychology, The University of Edinburgh, UK
- Scottish Imaging Network, A Platform for Scientific Excellence (SINAPSE) Collaboration, Edinburgh, UK
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4
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Narasimha VL, Mukherjee D, Arya S, Parmar A. Alcohol use disorder research in India: An update. Indian J Psychiatry 2024; 66:495-515. [PMID: 39100372 PMCID: PMC11293778 DOI: 10.4103/indianjpsychiatry.indianjpsychiatry_758_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 05/10/2024] [Accepted: 05/21/2024] [Indexed: 08/06/2024] Open
Abstract
Background Despite alcohol use being a risk factor for numerous health-related conditions and alcohol use disorder (AUD) recognized as a disease, there was limited research in India until 2010. This narrative review aims to evaluate AUD-related research in India from 2010 to July 2023. Methods A PubMed search used key terms for AUD in India after 2010. Indian and international journals with regional significance that publish alcohol-related research were searched by each author individually. These were then collated, and duplicates were removed. In addition, we also conducted a gray literature search on focused areas related to AUD. Results The alcohol-related research in India after 2010 focused on diverse areas associated with alcohol use. Some areas of research have received more attention than others. Two major epidemiological surveys conducted in the past decade reveal that around 5% have a problematic alcohol use pattern. Factors associated with alcohol use, like genetic, neurobiological, psychological, and sociocultural, were studied. The studies focused on the clinical profile of AUD, including their correlates, such as craving, withdrawal, alcohol-related harm, and comorbid psychiatric and medical illnesses. During this period, minimal research was conducted to understand AUD's laboratory biomarkers, course, and prognosis. While there was a focus on generating evidence for different psychological interventions for alcohol dependence in management-related research, pharmacological studies centered on anticraving agents like baclofen. Research on noninvasive brain stimulation, such as rTMS, has shown preliminary usefulness in treating alcohol dependence. Very little research has been conducted regarding alcohol policy. Conclusion In the past decade, Indian research on alcohol has focused on diverse areas. Epidemiological and psychological management-related research received maximum attention. Considering the magnitude of the alcohol-related burden, it is essential to prioritize research to other less studied areas like pharmacological management of alcohol dependence and alcohol policy.
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Affiliation(s)
- Venkata Lakshmi Narasimha
- Centre for Addiction Medicine, Department of Psychiatry, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru, Karnataka, India
| | | | - Sidharth Arya
- Institute of Mental Health, Pt BDS University of Health Sciences, Rohtak, Haryana, India
| | - Arpit Parmar
- Department of Psychiatry, All India Institute of Medical Sciences (AIIMS), Bhubaneswar, Odisha, India
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Feeney K, Pintos Lobo R, Hare MM, Morris SSJ, Laird AR, Musser ED. Parental Deprivation- and Threat-Based Factors Associated with Youth Emotion-Based Neurocircuitry and Externalizing Behavior: A Systematic Review. Res Child Adolesc Psychopathol 2024; 52:311-323. [PMID: 37831222 DOI: 10.1007/s10802-023-01138-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2023] [Indexed: 10/14/2023]
Abstract
Parental factors, including negative parenting practices (e.g., family conflict, low monitoring), parental depression, and parental substance use, are associated with externalizing behaviors among youth. However, the ways in which these parental factors are associated with youth brain function and consequent externalizing behavior has been less studied. Both the dimensional and stress acceleration models provide frameworks for understanding how parental factors may be associated with frontolimbic and frontoparietal networks implicated in emotional attention and regulation processes. The current review builds upon this work by examining how deprivation- and threat-based parental factors are associated with youth neurocircuitry involved in emotional functioning and externalizing behaviors. A systematic review using PRISMA guidelines was completed and included five studies assessing parenting behaviors, six studies assessing parental depressive symptoms and/or diagnosis, and 12 studies assessing parental history of substance use. Synthesis of reviewed studies discusses support for the dimensional and stress acceleration models within the context of deprivation and threat. Further, a limited number of studies tested (i.e., six studies) and supported (i.e., three studies) youth neural structure and function as a mediator of the association between parental factors and youth externalizing behavior. Specific recommendations for future work include more deliberate planning related to sample composition, improved clarity related to parental constructs, consistency in methodology, and longitudinal study design in order to better understand associations between contextual parental influences and youth neural and behavioral functioning.
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Affiliation(s)
- Kathleen Feeney
- Department of Psychology, Florida International University, Miami, FL, USA.
| | | | - Megan M Hare
- Department of Psychology, Florida International University, Miami, FL, USA
| | | | - Angela R Laird
- Department of Physics, Florida International University, Miami, FL, USA
| | - Erica D Musser
- Department of Psychology, Florida International University, Miami, FL, USA
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Gonçalves PD, Martins SS, Gebru NM, Ryan-Pettes SR, Allgaier N, Potter A, Thompson WK, Johnson ME, Garavan H, Talati A, Albaugh MD. Associations Between Family History of Alcohol and/or Substance Use Problems and Frontal Cortical Development From 9 to 13 Years of Age: A Longitudinal Analysis of the ABCD Study. BIOLOGICAL PSYCHIATRY GLOBAL OPEN SCIENCE 2024; 4:100284. [PMID: 38312852 PMCID: PMC10837483 DOI: 10.1016/j.bpsgos.2023.100284] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 11/24/2023] [Accepted: 12/02/2023] [Indexed: 02/06/2024] Open
Abstract
Background Previous investigations that have examined associations between family history (FH) of alcohol/substance use and adolescent brain development have been primarily cross-sectional. Here, leveraging a large population-based sample of youths, we characterized frontal cortical trajectories among 9- to 13-year-olds with (FH+) versus without (FH-) an FH and examined sex as a potential moderator. Methods We used data from 9710 participants in the Adolescent Brain Cognitive Development (ABCD) Study (release 4.0). FH+ was defined as having ≥1 biological parents and/or ≥2 biological grandparents with a history of alcohol/substance use problems (n = 2433). Our primary outcome was frontal cortical structural measures obtained at baseline (ages 9-11) and year 2 follow-up (ages 11-13). We used linear mixed-effects models to examine the extent to which FH status qualified frontal cortical development over the age span studied. Finally, we ran additional interactions with sex to test whether observed associations between FH and cortical development differed significantly between sexes. Results For FH+ (vs. FH-) youths, we observed increased cortical thinning from 9 to 13 years across the frontal cortex as a whole. When we probed for sex differences, we observed significant declines in frontal cortical thickness among boys but not girls from ages 9 to 13 years. No associations were observed between FH and frontal cortical surface area or volume. Conclusions Having a FH+ is associated with more rapid thinning of the frontal cortex across ages 9 to 13, with this effect driven primarily by male participants. Future studies will need to test whether the observed pattern of accelerated thinning predicts future substance use outcomes.
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Affiliation(s)
- Priscila Dib Gonçalves
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, New York
- New York State Psychiatric Institute and Department of Psychiatry, Columbia University, New York, New York
| | - Silvia S. Martins
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, New York
| | - Nioud Mulugeta Gebru
- Center for Alcohol and Addiction Studies, Department of Behavioral and Social Sciences, Brown University School of Public Health, Providence, Rhode Island
| | | | - Nicholas Allgaier
- Department of Psychiatry, University of Vermont, Burlington, Vermont
| | - Alexandra Potter
- Department of Psychiatry, University of Vermont, Burlington, Vermont
| | - Wesley K. Thompson
- Center for Population Neuroscience and Genetics, Laureate Institute for Brain Research, Tulsa, Oklahoma
| | - Micah E. Johnson
- Department of Mental Health Law and Policy, College of Behavioral and Community Sciences, University of South Florida, Tampa, Florida
| | - Hugh Garavan
- Department of Psychiatry, University of Vermont, Burlington, Vermont
| | - Ardesheer Talati
- New York State Psychiatric Institute and Department of Psychiatry, Columbia University, New York, New York
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7
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Innate immune tolerance against adolescent intermittent alcohol exposure-induced behavioral abnormalities in adult mice. Int Immunopharmacol 2022; 113:109250. [DOI: 10.1016/j.intimp.2022.109250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/23/2022] [Accepted: 09/09/2022] [Indexed: 11/05/2022]
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8
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Novi M, Paraskevopoulou M, Van Rooij D, Schene AH, Buitelaar JK, Schellekens AFA. Effects of substance misuse and current family history of substance use disorder on brain structure in adolescents and young adults with attention-deficit/hyperactivity disorder. Drug Alcohol Depend 2021; 228:109032. [PMID: 34555690 DOI: 10.1016/j.drugalcdep.2021.109032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 07/03/2021] [Accepted: 07/26/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND Alterations in brain structure in attention-deficit/hyperactivity disorder (ADHD) show considerable overlap with those observed in substance use disorder (SUD). These overlapping structural alterations in ADHD and SUD might be explained by family history (FH-trait) effects of SUD, and/or substance misuse (state) effects. Our aim was to investigate effects of 1) current parental SUD (SUD-FH) and 2) recent substance misuse (SM) on brain structure in a cohort of ADHD patients and controls. DESIGN Cortical thickness and subcortical volumes were measured using structural MRI. We compared ADHD subjects and controls with or without SUD-FH (aim 1) and additionally explored differences between SUD-FH- and SUD-FH + subjects with one versus two parents with SUD. We also compared ADHD groups with and without SM (ADHD + SM and ADHD-only, respectively) and controls (aim 2). FINDINGS There was no association between SUD-FH and brain structure. Exploratory analysis on SUD-FH showed decreased IFG thickness (p = 0.032) and nucleus accumbens (NAcc) volume (p = 0.017) in subjects with two versus one SUD parent, regardless of ADHD. ADHD + SM showed decreased inferior frontal gyrus (IFG) thickness compared to controls (pars opercularis p = 0.025, pars orbitalis p = 0.010, pars triangularis p = 0.049), while no difference was found between ADHD-only and either ADHD + SM or controls. CONCLUSIONS Despite negative findings in the primary trait-analysis, exploratory trait-analysis on SUD-FH loading suggested potential SUD trait-effects on IFG thickness and NAcc volume. Substance misuse state effects in ADHD were linked to lower IFG thickness. Future studies should confirm these findings and investigate their clinical relevance, including the functional consequences of decreased IFG thickness.
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Affiliation(s)
- Martina Novi
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, Pisa, 56100, Italy; Department of Psychiatry, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, the Netherlands.
| | - Maria Paraskevopoulou
- Department of Psychiatry, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Daan Van Rooij
- Donders Centre for Cognitive Neuroimaging, Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, the Netherlands
| | - Aart H Schene
- Department of Psychiatry, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Jan K Buitelaar
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition, and Behaviour, Radboud University Medical Centre, Nijmegen, the Netherlands; Karakter Child and Adolescent Psychiatry University Centre, Nijmegen, the Netherlands
| | - Arnt F A Schellekens
- Department of Psychiatry, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, the Netherlands; Nijmegen Institute for Scientist Practitioners in Addiction, Nijmegen, the Netherlands
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Gazula H, Holla B, Zhang Z, Xu J, Verner E, Kelly R, Jain S, Bharath RD, Barker GJ, Basu D, Chakrabarti A, Kalyanram K, Kumaran K, Singh L, Kuriyan R, Murthy P, Benega V, Plis SM, Sarwate AD, Turner JA, Schumann G, Calhoun VD. Decentralized Multisite VBM Analysis During Adolescence Shows Structural Changes Linked to Age, Body Mass Index, and Smoking: a COINSTAC Analysis. Neuroinformatics 2021; 19:553-566. [PMID: 33462781 PMCID: PMC12077935 DOI: 10.1007/s12021-020-09502-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/17/2020] [Indexed: 12/23/2022]
Abstract
There has been an upward trend in developing frameworks that enable neuroimaging researchers to address challenging questions by leveraging data across multiple sites all over the world. One such open-source framework is the Collaborative Informatics and Neuroimaging Suite Toolkit for Anonymous Computation (COINSTAC) that works on Windows, macOS, and Linux operating systems and leverages containerized analysis pipelines to analyze neuroimaging data stored locally across multiple physical locations without the need for pooling the data at any point during the analysis. In this paper, the COINSTAC team partnered with a data collection consortium to implement the first-ever decentralized voxelwise analysis of brain imaging data performed outside the COINSTAC development group. Decentralized voxel-based morphometry analysis of over 2000 structural magnetic resonance imaging data sets collected at 14 different sites across two cohorts and co-located in different countries was performed to study the structural changes in brain gray matter which linked to age, body mass index (BMI), and smoking. Results produced by the decentralized analysis were consistent with and extended previous findings in the literature. In particular, a widespread cortical gray matter reduction (resembling a 'default mode network' pattern) and hippocampal increase with age, bilateral increases in the hypothalamus and basal ganglia with BMI, and cingulate and thalamic decreases with smoking. This work provides a critical real-world test of the COINSTAC framework in a "Large-N" study. It showcases the potential benefits of performing multivoxel and multivariate analyses of large-scale neuroimaging data located at multiple sites.
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Affiliation(s)
- Harshvardhan Gazula
- Tri-institutional Center for Translational Research in Neuroimaging and Data Science (TReNDS): Georgia State University, Georgia Institute of Technology, Emory University, Atlanta, GA, USA.
| | - Bharath Holla
- Department of Psychiatry, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru, India.
- Department of Integrative Medicine, NIMHANS, Bengaluru, India.
| | - Zuo Zhang
- Centre for Population Neuroscience and Precision Medicine (PONS), Institute of Psychiatry, Psychology and Neuroscience, SGDP Centre, King's College London, London, SE5 8AF, UK
| | - Jiayuan Xu
- Centre for Population Neuroscience and Precision Medicine (PONS), Institute of Psychiatry, Psychology and Neuroscience, SGDP Centre, King's College London, London, SE5 8AF, UK
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, 300052, People's Republic of China
| | - Eric Verner
- Tri-institutional Center for Translational Research in Neuroimaging and Data Science (TReNDS): Georgia State University, Georgia Institute of Technology, Emory University, Atlanta, GA, USA
| | - Ross Kelly
- Tri-institutional Center for Translational Research in Neuroimaging and Data Science (TReNDS): Georgia State University, Georgia Institute of Technology, Emory University, Atlanta, GA, USA
| | - Sanjeev Jain
- Department of Psychiatry, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru, India
| | - Rose Dawn Bharath
- Department of Neuroimaging and Interventional Radiology NIMHANS, Bengaluru, India
| | - Gareth J Barker
- Department of Neuroimaging, Institute of Psychology, Psychiatry & Neuroscience, King's College London, London, UK
| | - Debasish Basu
- Department of Psychiatry, Postgraduate Institute of Medical Education & Research, Chandigarh, India
| | | | | | | | - Lenin Singh
- Regional Institute of Medical Sciences, Imphal, Manipur, India
| | - Rebecca Kuriyan
- Division of Nutrition, St. John's Research Institute, Bengaluru, India
| | - Pratima Murthy
- Department of Psychiatry, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru, India
- Centre for Addiction Medicine, NIMHANS, Bengaluru, India
| | - Vivek Benega
- Department of Psychiatry, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru, India
- Centre for Addiction Medicine, NIMHANS, Bengaluru, India
| | - Sergey M Plis
- Tri-institutional Center for Translational Research in Neuroimaging and Data Science (TReNDS): Georgia State University, Georgia Institute of Technology, Emory University, Atlanta, GA, USA
| | - Anand D Sarwate
- Department of Electrical and Computer Engineering, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Jessica A Turner
- Tri-institutional Center for Translational Research in Neuroimaging and Data Science (TReNDS): Georgia State University, Georgia Institute of Technology, Emory University, Atlanta, GA, USA
| | - Gunter Schumann
- Department of Integrative Medicine, NIMHANS, Bengaluru, India
- PONS Research Group, Department of Psychiatry and Psychotherapy, Campus Charite Mitte, Humboldt University, Berlin, Germany
- Leibniz Institute for Neurobiology, Magdeburg, Germany
- Institute for Science and Technology of Brain-inspired Intelligence (ISTBI), Fudan University, Shanghai, People's Republic of China
| | - Vince D Calhoun
- Tri-institutional Center for Translational Research in Neuroimaging and Data Science (TReNDS): Georgia State University, Georgia Institute of Technology, Emory University, Atlanta, GA, USA.
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10
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Hatoum AS, Johnson EC, Baranger DAA, Paul SE, Agrawal A, Bogdan R. Polygenic risk scores for alcohol involvement relate to brain structure in substance-naïve children: Results from the ABCD study. GENES, BRAIN, AND BEHAVIOR 2021; 20:e12756. [PMID: 34092032 PMCID: PMC8645657 DOI: 10.1111/gbb.12756] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 05/29/2021] [Accepted: 06/02/2021] [Indexed: 05/09/2023]
Abstract
Brain imaging-derived structural correlates of alcohol involvement have largely been speculated to arise as a consequence of alcohol exposure. However, they may also reflect predispositional risk. In substance naïve children of European ancestry who completed the baseline session of the Adolescent Brain Cognitive Development (ABCD) Study (n = 3013), mixed-effects models estimated whether polygenic risk scores (PRS) for problematic alcohol use (PAU-PRS) and drinks per week (DPW-PRS) are associated with magnetic resonance imaging-derived brain structure phenotypes (i.e., total and regional: cortical thickness, surface area and volume; subcortical volume; white matter volume, fractional anisotropy, mean diffusivity). Follow-up analyses evaluated whether any identified regions were also associated with polygenic risk among substance naïve children of African ancestry (n = 898). After adjustment for multiple testing correction, polygenic risk for PAU was associated with lower volume of the left frontal pole and greater cortical thickness of the right supramarginal gyrus (|βs| > 0.009; ps < 0.001; psfdr < 0.046; r2 s < 0.004). PAU PRS and DPW PRS showed nominally significant associations with a host of other regional brain structure phenotypes (e.g., insula surface area and volume). None of these regions showed any, even nominal association among children of African ancestry. Genomic liability to alcohol involvement may manifest as variability in brain structure during middle childhood prior to alcohol use initiation. Broadly, alcohol-related variability in brain morphometry may partially reflect predisposing genomic influence. Larger discovery genome-wide association studies and target samples of diverse ancestries are needed to determine whether observed associations may generalize across ancestral origins.
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Affiliation(s)
- Alexander S Hatoum
- Department of Psychiatry, Washington University St. Louis Medical School, St. Louis, Missouri, USA
| | - Emma C Johnson
- Department of Psychiatry, Washington University St. Louis Medical School, St. Louis, Missouri, USA
| | - David A A Baranger
- Department of Psychiatry, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Sarah E Paul
- Department of Psychology & Brain Sciences, Washington University St. Louis, St. Louis, Missouri, USA
| | - Arpana Agrawal
- Department of Psychiatry, Washington University St. Louis Medical School, St. Louis, Missouri, USA
| | - Ryan Bogdan
- Department of Psychology & Brain Sciences, Washington University St. Louis, St. Louis, Missouri, USA
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11
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Carias AR, Granato TMM. O Sofrimento Emocional de Filhos de Alcoolistas: Uma Compreensão Psicanalítica Winnicottiana. PSICOLOGIA: CIÊNCIA E PROFISSÃO 2021. [DOI: 10.1590/1982-3703003218542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Resumo Os filhos de alcoolistas sofrem com os inúmeros dilemas provenientes da relação conturbada com o progenitor, destacando-se a violência doméstica, a desqualificação moral, a insegurança e as dificuldades financeiras. A fim de acessar os sentidos afetivo-emocionais da experiência de ter convivido com um pai alcoolista ao longo da vida, realizamos uma pesquisa qualitativa psicanalítica. Foram realizadas entrevistas individuais com 12 filhos adultos, iniciadas por uma Narrativa Interativa (NI), usada como recurso investigativo que visa estabelecer um campo lúdico-ficcional para facilitar as associações livres dos participantes. Foi criada uma NI para este estudo, cuja trama se desenrola em torno da expectativa de um filho que aguarda a chegada do pai alcoolizado, momento em que a trama é interrompida para que o participante complete o seu desfecho. Como procedimento de registro, o pesquisador elaborou Narrativas Transferenciais que descrevem cada encontro e sua tonalidade afetiva. A análise interpretativa do material narrativo resultou em quatro campos de sentidos afetivo-emocionais: “Sua Majestade: o Alcoolista!” que descreve o lugar ocupado pelo pai na cena familiar; “Papai, quem é você?”, campo que alude à experiência desorganizadora desencadeada pela imprevisibilidade ambiental; “Só me resta sobreviver!”, o qual descreve as estratégias defensivas mobilizadas pelos filhos de alcoolistas; e “Desejo ter nas mãos a minha história!”, que alude ao resgate de uma vida autêntica e dotada de sentido. As consequências nefastas do alcoolismo parental para a saúde mental dos filhos foram discutidas à luz da psicanálise winnicottiana, o que revelou um profundo sofrimento emocional que interpela os pesquisadores sobre práticas profissionais afinadas às necessidades dessa população.
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12
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Duan Y, Lin Y, Rosen D, Du J, He L, Wang Y. Identifying Morphological Patterns of Hippocampal Atrophy in Patients With Mesial Temporal Lobe Epilepsy and Alzheimer Disease. Front Neurol 2020; 11:21. [PMID: 32038474 PMCID: PMC6989594 DOI: 10.3389/fneur.2020.00021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 01/08/2020] [Indexed: 12/31/2022] Open
Abstract
Purpose: Mesial temporal lobe epilepsy (MTLE) and Alzheimer's disease (AD) are two distinct neurological disorders associated with hippocampal atrophy. Our goal is to analyze the morphologic patterns of hippocampal atrophy to better understand the underlying pathological and clinical characteristics of the two conditions. Methods: Twenty-five patients with AD and 20 healthy controls with matched age and gender were recruited into the AD group. Twenty-three MTLE patients and 28 healthy controls with matched age and gender were recruited into the MTLE group. All subjects were scanned on 3T-MRI scanner. Automated volumetric analysis was applied to measure and compare the hippocampal volume of the two respective groups. Vertex-based morphologic analysis was applied to characterize the morphologic patterns of hippocampal atrophy within and between groups, and a correlation analysis was performed. Results: Volumetric analysis revealed significantly decreased hippocampal volume in both AD and MTLE patients compared to the controls. In the patients with AD, the mean total hippocampal volume was 32.70% smaller than that of healthy controls, without a significant difference between the left and the right hippocampus (p < 0.05). In patients with MTLE, a significant reduction in unilateral hippocampal volume was observed, with a mean volume reduction of 28.38% as compared with healthy controls (p < 0.05). Vertex-based morphologic analysis revealed a generalized shrinkage of the hippocampi in AD patients, especially in bilateral medial and lateral regions. In MTLE group, atrophy was seen in the ipsilateral head, ipsilateral lateral body and slightly contralateral tail of the hippocampus (FWE-corrected, p < 0.05). Conclusions: MTLE and AD have distinctive morphologic patterns of hippocampal atrophy, which provide new insight into the radiology-pathology correlation in these diseases.
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Affiliation(s)
- Yiran Duan
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Yicong Lin
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Dennis Rosen
- Division of Pulmonary Medicine, Boston Children's Hospital, Boston, MA, United States.,Harvard Medical School, Boston, MA, United States
| | - Jialin Du
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Liu He
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Yuping Wang
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Neuromodulation, Beijing, China.,Center of Epilepsy, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
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13
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Sharma E, Jacob P, Murthy P, Jain S, Varghese M, Jayarajan D, Kumar K, Benegal V, Vaidya N, Zhang Y, Desrivieres S, Schumann G, Iyengar U, Holla B, Purushottam M, Chakrabarti A, Fernandes GS, Heron J, Hickman M, Kartik K, Kalyanram K, Rangaswamy M, Bharath RD, Barker G, Orfanos DP, Ahuja C, Thennarasu K, Basu D, Subodh BN, Kuriyan R, Kurpad SS, Kumaran K, Krishnaveni G, Krishna M, Singh RL, Singh LR, Toledano M. Consortium on Vulnerability to Externalizing Disorders and Addictions (cVEDA): A developmental cohort study protocol. BMC Psychiatry 2020; 20:2. [PMID: 31898525 PMCID: PMC6941284 DOI: 10.1186/s12888-019-2373-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 11/26/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Low and middle-income countries like India with a large youth population experience a different environment from that of high-income countries. The Consortium on Vulnerability to Externalizing Disorders and Addictions (cVEDA), based in India, aims to examine environmental influences on genomic variations, neurodevelopmental trajectories and vulnerability to psychopathology, with a focus on externalizing disorders. METHODS cVEDA is a longitudinal cohort study, with planned missingness design for yearly follow-up. Participants have been recruited from multi-site tertiary care mental health settings, local communities, schools and colleges. 10,000 individuals between 6 and 23 years of age, of all genders, representing five geographically, ethnically, and socio-culturally distinct regions in India, and exposures to variations in early life adversity (psychosocial, nutritional, toxic exposures, slum-habitats, socio-political conflicts, urban/rural living, mental illness in the family) have been assessed using age-appropriate instruments to capture socio-demographic information, temperament, environmental exposures, parenting, psychiatric morbidity, and neuropsychological functioning. Blood/saliva and urine samples have been collected for genetic, epigenetic and toxicological (heavy metals, volatile organic compounds) studies. Structural (T1, T2, DTI) and functional (resting state fMRI) MRI brain scans have been performed on approximately 15% of the individuals. All data and biological samples are maintained in a databank and biobank, respectively. DISCUSSION The cVEDA has established the largest neurodevelopmental database in India, comparable to global datasets, with detailed environmental characterization. This should permit identification of environmental and genetic vulnerabilities to psychopathology within a developmental framework. Neuroimaging and neuropsychological data from this study are already yielding insights on brain growth and maturation patterns.
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Affiliation(s)
- Eesha Sharma
- Department of Child and Adolescent Psychiatry, National Institute of Mental Health and Neuro-Sciences (NIMHANS), Bangalore, Karnataka India
| | - Preeti Jacob
- Department of Child and Adolescent Psychiatry, National Institute of Mental Health and Neuro-Sciences (NIMHANS), Bangalore, Karnataka India
| | - Pratima Murthy
- Department of Psychiatry, National Institute of Mental Health and Neuro-Sciences (NIMHANS), Bangalore, Karnataka India
| | - Sanjeev Jain
- Department of Psychiatry, National Institute of Mental Health and Neuro-Sciences (NIMHANS), Bangalore, Karnataka India
| | - Mathew Varghese
- Department of Psychiatry, National Institute of Mental Health and Neuro-Sciences (NIMHANS), Bangalore, Karnataka India
| | - Deepak Jayarajan
- Department of Psychiatry, National Institute of Mental Health and Neuro-Sciences (NIMHANS), Bangalore, Karnataka India
| | - Keshav Kumar
- Department of Child and Adolescent Psychiatry, National Institute of Mental Health and Neuro-Sciences (NIMHANS), Bangalore, Karnataka India
| | - Vivek Benegal
- Department of Psychiatry, National Institute of Mental Health and Neuro-Sciences (NIMHANS), Bangalore, Karnataka India
| | - Nilakshi Vaidya
- Centre for Population Neuroscience and Precision Medicine, Institute of Psychology, Psychiatry & Neuroscience, MRC SGDP Centre, King’s College London, London, UK
| | - Yuning Zhang
- Centre for Population Neuroscience and Precision Medicine, Institute of Psychology, Psychiatry & Neuroscience, MRC SGDP Centre, King’s College London, London, UK
| | - Sylvane Desrivieres
- Centre for Population Neuroscience and Precision Medicine, Institute of Psychology, Psychiatry & Neuroscience, MRC SGDP Centre, King’s College London, London, UK
| | - Gunter Schumann
- Centre for Population Neuroscience and Precision Medicine, Institute of Psychology, Psychiatry & Neuroscience, MRC SGDP Centre, King’s College London, London, UK
| | - Udita Iyengar
- Department of Child & Adolescent Psychiatry, Institute of Psychology, Psychiatry & Neuroscience, King’s College London, London, UK
| | - Bharath Holla
- Department of Psychiatry, National Institute of Mental Health and Neuro-Sciences (NIMHANS), Bangalore, Karnataka India
| | - Meera Purushottam
- Molecular Genetics Laboratory, National Institute of Mental Health and Neuro-Sciences (NIMHANS), Bangalore, Karnataka India
| | - Amit Chakrabarti
- Regional Occupational Health Centre (ROHC), Eastern, ICMR-National Institute of Occupational Health (NIOH), Kolkata, West Bengal India
| | - Gwen Sascha Fernandes
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Jon Heron
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Matthew Hickman
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Kamakshi Kartik
- Rishi Valley Rural Health Centre, Madanapalle, Chittoor, Andhra Pradesh India
| | - Kartik Kalyanram
- Rishi Valley Rural Health Centre, Madanapalle, Chittoor, Andhra Pradesh India
| | | | - Rose Dawn Bharath
- Department of Neuroimaging and Interventional Radiology, National Institute of Mental Health and Neuro-Sciences (NIMHANS), Bangalore, Karnataka India
| | - Gareth Barker
- Department of Neuroimaging, Institute of Psychology, Psychiatry & Neuroscience, King’s College London, London, UK
| | | | - Chirag Ahuja
- Department of Radiodiagnosis and Imaging, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Kandavel Thennarasu
- Department of Biostatistics, National Institute of Mental Health and Neuro-Sciences (NIMHANS), Bangalore, Karnataka India
| | - Debashish Basu
- Department of Psychiatry, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - B. N. Subodh
- Department of Psychiatry, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Rebecca Kuriyan
- Division of Nutrition, St John’s Research Institute, Bengaluru, India
| | - Sunita Simon Kurpad
- Department of Psychiatry and Department of Medical Ethics, St. John’s Medical College and Hospital, Bengaluru, India
| | | | - Ghattu Krishnaveni
- Epidemiology Research Unit, CSI Holdsworth Memorial Hospital, Mysore, India
| | - Murali Krishna
- Foundation for Research and Advocacy in Mental Health, Mysore, India
| | - Rajkumar Lenin Singh
- Department of Psychiatry, Regional Institute of Medical Sciences (RIMS), Imphal, Manipur India
| | - L. Roshan Singh
- Department of Clinical Psychology, Regional Institute of Medical Sciences (RIMS), Imphal, Manipur India
| | - Mireille Toledano
- Faculty of Medicine, School of Public Health, Imperial College, London, UK
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14
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Courtney KE, Li I, Tapert SF. The effect of alcohol use on neuroimaging correlates of cognitive and emotional processing in human adolescence. Neuropsychology 2019; 33:781-794. [PMID: 31448946 DOI: 10.1037/neu0000555] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
OBJECTIVE This article provides an overview of the scientific literature pertaining to the effects of alcohol on neural correlates of cognitive and emotional functioning, including reward processing and cue-reactivity, in adolescence and young adulthood. METHOD Peer-reviewed, original research articles that included a neuroimaging assessment of alcohol effects on subsequent cognitive or emotional processing in adolescent or young adult samples were searched (through November 2018) and summarized in the review. RESULTS Cross-sectional studies provided early evidence of alcohol-related differences in neural processing across a number of cognitive domains. Longitudinal studies have identified neural abnormalities that predate drinking within most domains of cognitive functioning, while a few neural alterations have been observed within the domains of visual working memory, inhibitory control, reward processing, and cue-reactivity that appear to be related to the neurotoxic effect of alcohol use during adolescence. In contrast, neural correlates of emotion functioning appear to be relatively stable to the effects of alcohol. CONCLUSIONS Larger prospective studies are greatly needed to disentangle premorbid factors from neural consequences associated with drinking, and to detect subsets of youth who may be particularly vulnerable to alcohol's effects on cognitive and emotional functioning. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
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15
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Fritz M, Klawonn AM, Zahr NM. Neuroimaging in alcohol use disorder: From mouse to man. J Neurosci Res 2019; 100:1140-1158. [PMID: 31006907 DOI: 10.1002/jnr.24423] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 02/15/2019] [Accepted: 03/14/2019] [Indexed: 02/06/2023]
Abstract
This article provides an overview of recent advances in understanding the effects of alcohol use disorders (AUD) on the brain from the perspective of magnetic resonance imaging (MRI) research in preclinical models and clinical studies. As a noninvasive investigational tool permitting assessment of morphological, metabolic, and hemodynamic changes over time, MRI offers insight into the dynamic course of alcoholism beginning with initial exposure through periods of binge drinking and escalation, sobriety, and relapse and has been useful in differential diagnosis of neurological diseases associated with AUD. Structural MRI has revealed acute and chronic effects of alcohol on both white and gray matter volumes. MR Spectroscopy, able to quantify brain metabolites in vivo, has shed light on biochemical alterations associated with alcoholism. Diffusion tensor imaging permits microstructural characterization of white matter fiber tracts. Functional MRI has allowed for elucidation of hemodynamic responses at rest and during task engagement. Positron emission tomography, a non-MRI imaging tool, has led to a deeper understanding of alcohol-induced receptor and neurotransmitter changes during various stages of drinking and abstinence. Together, such in vivo imaging tools have expanded our understanding of the dynamic course of alcoholism including evidence for regional specificity of the effects of AUD, hints at mechanisms underlying the shift from casual to compulsive use of alcohol, and profound recovery with sustained abstinence.
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Affiliation(s)
- Michael Fritz
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, California
| | - Anna M Klawonn
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, California
| | - Natalie M Zahr
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, California.,Neuroscience Program, SRI International, Menlo Park, California
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16
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Mahadevan J, Kandasamy A, Benegal V. Situating adult attention-deficit/hyperactivity disorder in the externalizing spectrum: Etiological, diagnostic, and treatment considerations. Indian J Psychiatry 2019; 61:3-12. [PMID: 30745648 PMCID: PMC6341912 DOI: 10.4103/psychiatry.indianjpsychiatry_549_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Adult attention-deficit/hyperactivity disorder (ADHD) has a population prevalence of 5%. However, its prevalence is much higher in mental health and substance use treatment settings. It is associated with significant physical and psychiatric morbidity, as well as social, occupational, and legal consequences. Adult ADHD is considered to be a part of the externalizing spectrum with which it shares both homotypic comorbidity and heterotypic continuity across the lifespan. This is attributable to a shared genetic basis, which interacts with environmental risk factors such as nutritional deficiencies and psychosocial adversity to bring about epigenetic changes. This is seen to result in a lag in brain maturation particularly in the areas of the brain related to executive functioning (top-down regulation) such as the prefrontal and cingulate cortices. This delay when coupled with impairments in reward processing, leads to a preference for immediate small rewards and is common to externalizing disorders. Adult ADHD is increasingly understood to not merely be associated with the classically described symptoms of hyperactivity, impulsivity and inattention, but also issues with motivation, emotional recognition and regulation, excessive mind wandering, and behavioral self-regulation. These symptoms are also observed in other disorders which overlap with the externalizing spectrum such as oppositional defiant disorder, conduct disorder, antisocial and borderline personality disorder. It is therefore important to develop both broad-based and specific interventions to be able to target these deficits which can reduce the burden and improve outcomes.
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Affiliation(s)
- Jayant Mahadevan
- Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| | - Arun Kandasamy
- Department of Psychiatry, Centre for Addiction Medicine, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| | - Vivek Benegal
- Department of Psychiatry, Centre for Addiction Medicine, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
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