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Cao Z, McCabe M, Callas P, Cupertino RB, Ottino-González J, Murphy A, Pancholi D, Schwab N, Catherine O, Hutchison K, Cousijn J, Dagher A, Foxe JJ, Goudriaan AE, Hester R, Li CSR, Thompson WK, Morales AM, London ED, Lorenzetti V, Luijten M, Martin-Santos R, Momenan R, Paulus MP, Schmaal L, Sinha R, Solowij N, Stein DJ, Stein EA, Uhlmann A, van Holst RJ, Veltman DJ, Wiers RW, Yücel M, Zhang S, Conrod P, Mackey S, Garavan H. Recalibrating single-study effect sizes using hierarchical Bayesian models. Front Neuroimaging 2023; 2:1138193. [PMID: 38179200 PMCID: PMC10764546 DOI: 10.3389/fnimg.2023.1138193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 11/27/2023] [Indexed: 01/06/2024]
Abstract
Introduction There are growing concerns about commonly inflated effect sizes in small neuroimaging studies, yet no study has addressed recalibrating effect size estimates for small samples. To tackle this issue, we propose a hierarchical Bayesian model to adjust the magnitude of single-study effect sizes while incorporating a tailored estimation of sampling variance. Methods We estimated the effect sizes of case-control differences on brain structural features between individuals who were dependent on alcohol, nicotine, cocaine, methamphetamine, or cannabis and non-dependent participants for 21 individual studies (Total cases: 903; Total controls: 996). Then, the study-specific effect sizes were modeled using a hierarchical Bayesian approach in which the parameters of the study-specific effect size distributions were sampled from a higher-order overarching distribution. The posterior distribution of the overarching and study-specific parameters was approximated using the Gibbs sampling method. Results The results showed shrinkage of the posterior distribution of the study-specific estimates toward the overarching estimates given the original effect sizes observed in individual studies. Differences between the original effect sizes (i.e., Cohen's d) and the point estimate of the posterior distribution ranged from 0 to 0.97. The magnitude of adjustment was negatively correlated with the sample size (r = -0.27, p < 0.001) and positively correlated with empirically estimated sampling variance (r = 0.40, p < 0.001), suggesting studies with smaller samples and larger sampling variance tended to have greater adjustments. Discussion Our findings demonstrate the utility of the hierarchical Bayesian model in recalibrating single-study effect sizes using information from similar studies. This suggests that Bayesian utilization of existing knowledge can be an effective alternative approach to improve the effect size estimation in individual studies, particularly for those with smaller samples.
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Affiliation(s)
- Zhipeng Cao
- Shanghai Xuhui Mental Health Center, Shanghai, China
- Department of Psychiatry, University of Vermont College of Medicine, Burlington, VT, United States
| | - Matthew McCabe
- Department of Psychiatry, University of Vermont College of Medicine, Burlington, VT, United States
| | - Peter Callas
- Department of Mathematics and Statistics, University of Vermont College of Engineering and Mathematical Sciences, Burlington, VT, United States
| | - Renata B. Cupertino
- Department of Psychiatry, University of Vermont College of Medicine, Burlington, VT, United States
| | - Jonatan Ottino-González
- Department of Psychiatry, University of Vermont College of Medicine, Burlington, VT, United States
| | - Alistair Murphy
- Department of Psychiatry, University of Vermont College of Medicine, Burlington, VT, United States
| | - Devarshi Pancholi
- Department of Psychiatry, University of Vermont College of Medicine, Burlington, VT, United States
| | - Nathan Schwab
- Department of Psychiatry, University of Vermont College of Medicine, Burlington, VT, United States
| | - Orr Catherine
- Department of Psychological Sciences, School of Health Sciences, Swinburne University, Melbourne, VIC, Australia
| | - Kent Hutchison
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO, United States
| | - Janna Cousijn
- Department of Psychology, Education and Child Studies, Erasmus University Rotterdam, Rotterdam, Netherlands
| | - Alain Dagher
- Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, QC, Canada
| | - John J. Foxe
- Department of Neuroscience, The Ernest J. Del Monte Institute for Neuroscience, University of Rochester School of Medicine and Dentistry, Rochester, NY, United States
| | - Anna E. Goudriaan
- Department of Psychiatry, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Robert Hester
- Melbourne School of Psychological Sciences, University of Melbourne, Melbourne, VIC, Australia
| | - Chiang-Shan R. Li
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
| | | | - Angelica M. Morales
- Department of Psychiatry at Oregon Health and Science University, Portland, OR, United States
| | - Edythe D. London
- David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, United States
| | - Valentina Lorenzetti
- Neuroscience of Addiction and Mental Health Program, Healthy Brain and Mind Research Centre, School of Behavioural & Health Sciences, Faculty of Health Sciences, Australian Catholic University, Australia
| | - Maartje Luijten
- Behavioural Science Institute, Radboud University, Nijmegen, Netherlands
| | - Rocio Martin-Santos
- Department of Psychiatry and Psychology, University of Barcelona, Barcelona, Spain
| | - Reza Momenan
- Clinical NeuroImaging Research Core, Division of Intramural Clinical and Biological Research, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, United States
| | - Martin P. Paulus
- Laureate Institute for Brain Research, Tulsa, OK, United States
- VA San Diego Healthcare System and Department of Psychiatry, University of California San Diego, La Jolla, CA, United States
| | - Lianne Schmaal
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Melbourne, VIC, Australia
| | - Rajita Sinha
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
| | - Nadia Solowij
- School of Psychology and Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, NSW, Australia
| | - Dan J. Stein
- SA MRC Unit on Risk and Resilience in Mental Disorders, Department of Psychiatry and Neuroscience Institute, University of Cape Town, Cape Town, South Africa
| | - Elliot A. Stein
- Neuroimaging Research Branch, Intramural Research Program, National Institute on Drug Abuse, Baltimore, MD, United States
| | - Anne Uhlmann
- Department of Child and Adolescent Psychiatry and Psychotherapy, Technische Universität Dresden, Dresden, Germany
| | - Ruth J. van Holst
- Department of Psychiatry, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Dick J. Veltman
- Department of Psychiatry, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Reinout W. Wiers
- Addiction Development and Psychopathology (ADAPT)-Lab, Department of Psychology and Center for Urban Mental Health, University of Amsterdam, Amsterdam, Netherlands
| | - Murat Yücel
- BrainPark, Turner Institute for Brain and Mental Health, School of Psychological Sciences, and Monash Biomedical Imaging Facility, Monash University, Melbourne, VIC, Australia
| | - Sheng Zhang
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
| | - Patricia Conrod
- Department of Psychiatry, Université de Montreal, CHU Ste Justine Hospital, Montreal, QC, Canada
| | - Scott Mackey
- Department of Psychiatry, University of Vermont College of Medicine, Burlington, VT, United States
| | - Hugh Garavan
- Department of Psychiatry, University of Vermont College of Medicine, Burlington, VT, United States
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Jones SA, Morales AM, Harman G, Dominguez-Savage KA, Gilbert S, Baker FC, de Zambotti M, Goldston DB, Nooner KB, Clark DB, Luna B, Thompson WK, Brown SA, Tapert SF, Nagel BJ. Associations between alcohol use and sex-specific maturation of subcortical gray matter morphometry from adolescence to adulthood: Replication across two longitudinal samples. Dev Cogn Neurosci 2023; 63:101294. [PMID: 37683327 PMCID: PMC10497992 DOI: 10.1016/j.dcn.2023.101294] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 08/28/2023] [Accepted: 09/01/2023] [Indexed: 09/10/2023] Open
Abstract
Subcortical brain morphometry matures across adolescence and young adulthood, a time when many youth engage in escalating levels of alcohol use. Initial cross-sectional studies have shown alcohol use is associated with altered subcortical morphometry. However, longitudinal evidence of sex-specific neuromaturation and associations with alcohol use remains limited. This project used generalized additive mixed models to examine sex-specific development of subcortical volumes and associations with recent alcohol use, using 7 longitudinal waves (n = 804, 51% female, ages 12-21 at baseline) from the National Consortium on Alcohol and Neurodevelopment in Adolescence (NCANDA). A second, independent, longitudinal dataset, with up to four waves of data (n = 467, 43% female, ages 10-18 at baseline), was used to assess replicability. Significant, replicable non-linear normative volumetric changes with age were evident in the caudate, putamen, thalamus, pallidum, amygdala and hippocampus. Significant, replicable negative associations between subcortical volume and alcohol use were found in the hippocampus in all youth, and the caudate and thalamus in female but not male youth, with significant interactions present in the caudate, thalamus and putamen. Findings suggest a structural vulnerability to alcohol use, or a predisposition to drink alcohol based on brain structure, with female youth potentially showing heightened risk, compared to male youth.
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Affiliation(s)
- Scott A Jones
- Department of Psychiatry, Oregon Health & Science University, Portland, OR, USA
| | - Angelica M Morales
- Department of Psychiatry, Oregon Health & Science University, Portland, OR, USA
| | - Gareth Harman
- Department of Psychiatry, Oregon Health & Science University, Portland, OR, USA; Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University, Portland, OR, USA
| | | | - Sydney Gilbert
- Department of Psychiatry, Oregon Health & Science University, Portland, OR, USA
| | - Fiona C Baker
- Center for Health Sciences, SRI International, Menlo Park, CA, USA
| | | | - David B Goldston
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA
| | - Kate B Nooner
- Department of Psychology, University of North Carolina Wilmington, Wilmington, NC, USA
| | - Duncan B Clark
- Departments of Psychiatry, Psychology and Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Beatriz Luna
- Departments of Psychiatry, Psychology and Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Wesley K Thompson
- Population Neuroscience and Genetics Lab, University of California, San Diego, CA, USA
| | - Sandra A Brown
- Department of Psychology and Psychiatry, University of California, San Diego, La Jolla, CA, USA
| | - Susan F Tapert
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, USA
| | - Bonnie J Nagel
- Department of Psychiatry, Oregon Health & Science University, Portland, OR, USA.
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Morales AM, Gilbert S, Hart E, Jones SA, Boyd SJ, Mitchell SH, Nagel BJ. Alcohol-induced changes in mesostriatal resting-state functional connectivity are linked to sensation seeking in young adults. Alcohol Clin Exp Res (Hoboken) 2023; 47:659-667. [PMID: 36799331 PMCID: PMC10149605 DOI: 10.1111/acer.15032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 01/25/2023] [Accepted: 01/31/2023] [Indexed: 02/18/2023]
Abstract
BACKGROUND Studies in animals and humans suggest that greater levels of sensation seeking and alcohol use are related to individual differences in drug-induced dopamine release. However, it remains unclear whether drug-induced alterations in the functional synchrony between mesostriatal regions are related to sensation seeking and alcohol use. METHODS In this within-subject masked-design study, 21-year-old participants (n = 34) underwent functional magnetic resonance imaging to measure ventral tegmental area (VTA) resting-state functional connectivity to the striatum after receiving alcohol (target blood alcohol concentration 0.08 g/dL) or placebo. Participants also completed the UPPS-P Impulsive Behavior Scale to assess sensation seeking, the Young Adult Alcohol Consequences Questionnaire, and self-reported patterns of alcohol and drug use. RESULTS Voxel-wise analyses within the striatum demonstrated that during the alcohol condition (compared with placebo) young adults had less connectivity between the VTA and bilateral caudate (p < 0.05 corrected). However, young adults exhibiting smaller alcohol-induced decreases or increases in VTA-left caudate connectivity reported greater sensation seeking. CONCLUSION These findings provide novel information about how acute alcohol impacts resting-state connectivity, an effect that may be driven by the complex pre and postsynaptic effects of alcohol on various neurotransmitters including dopamine. Further, alcohol-induced differences in VTA connectivity represent a plausible mechanistic substrate underlying sensation seeking.
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Affiliation(s)
| | - Sydney Gilbert
- Departments of Psychiatry, Oregon Health & Science University
| | - Elijah Hart
- Departments of Psychiatry, Oregon Health & Science University
| | - Scott A. Jones
- Departments of Psychiatry, Oregon Health & Science University
| | - Stephen J. Boyd
- Departments of Anesthesiology and Perioperative Medicine, Oregon Health & Science University
| | - Suzanne H. Mitchell
- Departments of Psychiatry, Oregon Health & Science University
- Departments of Behavioral Neuroscience, Oregon Health & Science University
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University
| | - Bonnie J. Nagel
- Departments of Psychiatry, Oregon Health & Science University
- Departments of Behavioral Neuroscience, Oregon Health & Science University
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Del Giacco AC, Jones SA, Morales AM, Kliamovich D, Nagel BJ. Adolescent novelty seeking is associated with greater ventral striatal and prefrontal brain response during evaluation of risk and reward. Cogn Affect Behav Neurosci 2022; 22:123-133. [PMID: 34342865 PMCID: PMC8792307 DOI: 10.3758/s13415-021-00937-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/22/2021] [Indexed: 01/14/2023]
Abstract
Adolescence is a period during which reward sensitivity is heightened. Studies suggest that there are individual differences in adolescent reward-seeking behavior, attributable to a variety of factors, including temperament. This study investigated the neurobiological underpinnings of risk and reward evaluation as they relate to self-reported pleasure derived from novel experiences on the revised Early Adolescent Temperament Questionnaire (EATQ-R). Healthy participants (N = 265, ~50% male), aged 12-17 years, underwent functional magnetic resonance imaging during a modified Wheel of Fortune task, where they evaluated choices with varying probability of winning different monetary rewards. Across all participants, there was increased brain response in salience, reward, and cognitive control circuitry when evaluating choices with larger (compared with moderate) difference in risk/reward. Whole brain and a priori region-of-interest regression analyses revealed that individuals reporting higher novelty seeking had greater activation in bilateral ventral striatum, left middle frontal gyrus, and bilateral posterior cingulate cortex when evaluating the choices for largest difference in risk/reward. These novelty seeking associations with brain response were seen in the absence of temperament-related differences in decision-making behavior. Thus, while heightened novelty seeking in adolescents might be associated with greater neural sensitivity to risk/reward, accompanying increased activation in cognitive control regions might regulate reward-driven risk-taking behavior. More research is needed to determine whether individual differences in brain activation associated with novelty seeking are related to decision making in more ecologically valid settings.
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Affiliation(s)
- Amanda C Del Giacco
- Department of Psychiatry, Oregon Health & Science University, Portland, OR, USA
| | - Scott A Jones
- Department of Psychiatry, Oregon Health & Science University, Portland, OR, USA
| | - Angelica M Morales
- Department of Psychiatry, Oregon Health & Science University, Portland, OR, USA
| | - Dakota Kliamovich
- Department of Behavioral Neuroscience, Oregon Health & Science University, 3181 SW Sam Jackson Park Road UHN-80R1, Portland, OR, 97239, USA
| | - Bonnie J Nagel
- Department of Psychiatry, Oregon Health & Science University, Portland, OR, USA.
- Department of Behavioral Neuroscience, Oregon Health & Science University, 3181 SW Sam Jackson Park Road UHN-80R1, Portland, OR, 97239, USA.
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Dean AC, Nurmi EL, Morales AM, Cho AK, Seaman LC, London ED. CYP2D6 genotype may moderate measures of brain structure in methamphetamine users. Addict Biol 2021; 26:e12950. [PMID: 32767519 PMCID: PMC7865018 DOI: 10.1111/adb.12950] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 06/19/2020] [Accepted: 07/17/2020] [Indexed: 01/04/2023]
Abstract
Chronic methamphetamine use is linked to abnormalities in brain structure, which may reflect neurotoxicity related to metabolism of the drug. As the cytochrome P450 2D6 (CYP2D6) enzyme is central to the metabolism of methamphetamine, genotypic variation in its activity may moderate effects of methamphetamine on brain structure and function. This study explored the relationship between CYP2D6 genotype and measures of brain structure and cognition in methamphetamine users. Based on the function of genetic variants, a CYP2D6 activity score was determined in 82 methamphetamine-dependent (Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition [DSM-IV] criteria) and 79 healthy-control participants who completed tests of cognitive function (i.e., attention, memory, and executive function); most were also evaluated with structural magnetic resonance imaging (MRI) (66 methamphetamine-dependent and 52 controls). The relationship between CYP2D6 activity score and whole brain cortical thickness differed by group (interaction p = 0.024), as increasing CYP2D6 activity was associated with thinner cortical thickness in the methamphetamine users (β = -0.254; p = 0.035), but not in control subjects (β = 0.095; p = 0.52). Interactions between CYP2D6 activity and group were nonsignificant for hippocampal volume (ps > 0.05), but both hippocampi showed trends similar to those observed for cortical thickness (negative relationships in methamphetamine users [ps < 0.05], and no relationships in controls [ps > 0.50]). Methamphetamine users had lower cognitive scores than control subjects (p = 0.007), but there was no interaction between CYP2D6 activity score and group on cognition (p > 0.05). Results suggest that CYP2D6 genotypes linked to higher enzymatic activity may confer risk for methamphetamine-induced deficits in brain structure. The behavioral consequences of these effects are unclear and warrant additional investigation.
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Affiliation(s)
- Andy C. Dean
- Department of Psychiatry and Biobehavioral Sciences, UCLA Semel Institute for Neuroscience, David Geffen School of Medicine, Los Angeles, CA, 90024, USA
- Brain Research Institute, David Geffen School of Medicine, Los Angeles, CA, 90024, USA
| | - Erika L. Nurmi
- Department of Psychiatry and Biobehavioral Sciences, UCLA Semel Institute for Neuroscience, David Geffen School of Medicine, Los Angeles, CA, 90024, USA
- Brain Research Institute, David Geffen School of Medicine, Los Angeles, CA, 90024, USA
- Department of Mental Health, VA Greater Los Angeles Healthcare System, Los Angeles, CA, 90073, USA
| | - Angelica M. Morales
- Department of Psychiatry, Oregon Health & Science University, Portland, OR 97239, USA
| | - Arthur K. Cho
- Environmental Health Sciences, UCLA Fielding School of Public Health, Los Angeles, CA 90024, USA
| | - Lauren C. Seaman
- Department of Psychiatry and Biobehavioral Sciences, UCLA Semel Institute for Neuroscience, David Geffen School of Medicine, Los Angeles, CA, 90024, USA
| | - Edythe D. London
- Department of Psychiatry and Biobehavioral Sciences, UCLA Semel Institute for Neuroscience, David Geffen School of Medicine, Los Angeles, CA, 90024, USA
- Brain Research Institute, David Geffen School of Medicine, Los Angeles, CA, 90024, USA
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, Los Angeles, CA, 90024 USA
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Zhao Q, Sullivan EV, Műller‐Oehring EM, Honnorat N, Adeli E, Podhajsky S, Baker FC, Colrain IM, Prouty D, Tapert SF, Brown SA, Meloy MJ, Brumback T, Nagel BJ, Morales AM, Clark DB, Luna B, De Bellis MD, Voyvodic JT, Nooner KB, Pfefferbaum A, Pohl KM. Adolescent alcohol use disrupts functional neurodevelopment in sensation seeking girls. Addict Biol 2021; 26:e12914. [PMID: 32428984 DOI: 10.1111/adb.12914] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 02/20/2020] [Accepted: 04/17/2020] [Indexed: 01/11/2023]
Abstract
Exogenous causes, such as alcohol use, and endogenous factors, such as temperament and sex, can modulate developmental trajectories of adolescent neurofunctional maturation. We examined how these factors affect sexual dimorphism in brain functional networks in youth drinking below diagnostic threshold for alcohol use disorder (AUD). Based on the 3-year, annually acquired, longitudinal resting-state functional magnetic resonance imaging (MRI) data of 526 adolescents (12-21 years at baseline) from the National Consortium on Alcohol and Neurodevelopment in Adolescence (NCANDA) cohort, developmental trajectories of 23 intrinsic functional networks (IFNs) were analyzed for (1) sexual dimorphism in 259 participants who were no-to-low drinkers throughout this period; (2) sex-alcohol interactions in two age- and sex-matched NCANDA subgroups (N = 76 each), half no-to-low, and half moderate-to-heavy drinkers; and (3) moderating effects of gender-specific alcohol dose effects and a multifactorial impulsivity measure on IFN connectivity in all NCANDA participants. Results showed that sex differences in no-to-low drinkers diminished with age in the inferior-occipital network, yet girls had weaker within-network connectivity than boys in six other networks. Effects of adolescent alcohol use were more pronounced in girls than boys in three IFNs. In particular, girls showed greater within-network connectivity in two motor networks with more alcohol consumption, and these effects were mediated by sensation-seeking only in girls. Our results implied that drinking might attenuate the naturally diminishing sexual differences by disrupting the maturation of network efficiency more severely in girls. The sex-alcohol-dose effect might explain why women are at higher risk of alcohol-related health and psychosocial consequences than men.
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Affiliation(s)
- Qingyu Zhao
- Department of Psychiatry & Behavioral Sciences Stanford University School of Medicine Stanford CA USA
| | - Edith V. Sullivan
- Department of Psychiatry & Behavioral Sciences Stanford University School of Medicine Stanford CA USA
| | - Eva M. Műller‐Oehring
- Department of Psychiatry & Behavioral Sciences Stanford University School of Medicine Stanford CA USA
- Center for Health Sciences SRI International Menlo Park CA USA
| | | | - Ehsan Adeli
- Department of Psychiatry & Behavioral Sciences Stanford University School of Medicine Stanford CA USA
| | - Simon Podhajsky
- Center for Health Sciences SRI International Menlo Park CA USA
| | - Fiona C. Baker
- Center for Health Sciences SRI International Menlo Park CA USA
| | - Ian M. Colrain
- Center for Health Sciences SRI International Menlo Park CA USA
| | - Devin Prouty
- Center for Health Sciences SRI International Menlo Park CA USA
| | - Susan F. Tapert
- Department of Psychiatry University of California San Diego CA USA
| | - Sandra A. Brown
- Department of Psychiatry University of California San Diego CA USA
- Department of Psychology University of California San Diego CA USA
| | - Mary J. Meloy
- Department of Psychiatry University of California San Diego CA USA
| | - Ty Brumback
- Department of Psychological Science Northern Kentucky University Highland Heights KY USA
| | - Bonnie J. Nagel
- Departments of Psychiatry and Behavioral Neuroscience Oregon Health & Sciences University Portland OR USA
| | - Angelica M. Morales
- Departments of Psychiatry and Behavioral Neuroscience Oregon Health & Sciences University Portland OR USA
| | - Duncan B. Clark
- Department of Psychiatry University of Pittsburgh Pittsburgh PA USA
| | - Beatriz Luna
- Department of Psychiatry University of Pittsburgh Pittsburgh PA USA
| | - Michael D. De Bellis
- Department of Psychiatry & Behavioral Sciences Duke University School of Medicine Durham NC USA
| | - James T. Voyvodic
- Department of Radiology Duke University School of Medicine Durham NC USA
| | - Kate B. Nooner
- Department of Psychology University of North Carolina Wilmington Wilmington NC USA
| | - Adolf Pfefferbaum
- Department of Psychiatry & Behavioral Sciences Stanford University School of Medicine Stanford CA USA
- Center for Health Sciences SRI International Menlo Park CA USA
| | - Kilian M. Pohl
- Department of Psychiatry & Behavioral Sciences Stanford University School of Medicine Stanford CA USA
- Center for Health Sciences SRI International Menlo Park CA USA
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7
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Morales AM, Jones SA, Kliamovich D, Harman G, Nagel BJ. Identifying Early Risk Factors for Addiction Later in Life: A Review of Prospective Longitudinal Studies. Curr Addict Rep 2020; 7:89-98. [PMID: 33344103 DOI: 10.1007/s40429-019-00282-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Purpose of Review To review prospective longitudinal studies that have identified risk factors for the development of substance use disorders in adulthood from individual differences during childhood and adolescence. Recent Findings Risk factors during childhood and adolescence that have been consistently linked to increased risk for addiction include externalizing and internalizing symptoms, early substance use, and environmental influences, such as parental behavior and exposure to traumatic experiences. Summary Since the etiology of substance use disorders is complex and likely is attributable to many causal pathways, systematic examination of the associations between risk factors will be necessary to understand the mixed findings in the existing literature, to determine which individuals should be targeted for prevention efforts, and to design interventions that address risk factors that are most likely to improve outcomes.
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Affiliation(s)
- Angelica M Morales
- Department of Psychiatry, Oregon Health & Science University, Portland, OR, USA
| | - Scott A Jones
- Department of Psychiatry, Oregon Health & Science University, Portland, OR, USA
| | - Dakota Kliamovich
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, USA
| | - Gareth Harman
- Department of Psychiatry, Oregon Health & Science University, Portland, OR, USA
| | - Bonnie J Nagel
- Department of Psychiatry, Oregon Health & Science University, Portland, OR, USA.,Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, USA
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Piantino J, Boespflug EL, Schwartz DL, Luther M, Morales AM, Lin A, Fossen RV, Silbert L, Nagel BJ. Characterization of MR Imaging-Visible Perivascular Spaces in the White Matter of Healthy Adolescents at 3T. AJNR Am J Neuroradiol 2020; 41:2139-2145. [PMID: 33033050 DOI: 10.3174/ajnr.a6789] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 07/17/2020] [Indexed: 01/30/2023]
Abstract
BACKGROUND AND PURPOSE Perivascular spaces play a role in cerebral waste removal and neuroinflammation. Our aim was to provide data regarding the burden of MR imaging-visible perivascular spaces in white matter in healthy adolescents using an automated segmentation method and to establish relationships between common demographic characteristics and perivascular space burden. MATERIALS AND METHODS One hundred eighteen 12- to 21-year-old subjects underwent T1- and T2-weighted 3T MR imaging as part of the National Consortium on Alcohol and Neurodevelopment in Adolescence. Perivascular spaces were identified in WM on T2-weighted imaging using a local heterogeneity approach coupled with morphologic constraints, and their spatial distribution and geometric characteristics were assessed. RESULTS MR imaging-visible perivascular spaces were identified in all subjects (range, 16-287). Males had a significantly higher number of perivascular spaces than females: males, mean, 98.4 ± 50.5, versus females, 70.7 ± 36.1, (P < .01). Perivascular space burden was bilaterally symmetric (r > 0.4, P < .01), and perivascular spaces were more common in the frontal and parietal lobes than in the temporal and occipital lobes (P < .01). Age and pubertal status were not significantly associated with perivascular space burden. CONCLUSIONS Despite a wide range of burden, perivascular spaces are present in all healthy adolescents. Perivascular space burden is higher in adolescent males than in females, regardless of age and pubertal status. In this population, perivascular spaces are highly symmetric. Although widely reported as a feature of the aging brain, awareness of the presence of perivascular spaces in a cohort of healthy adolescents provides the foundation for further research regarding the role of these structural variants in health and disease.
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Affiliation(s)
- J Piantino
- From the Department of Pediatrics (J.P., M.L.), Division of Child Neurology, Doernbecher Children's Hospital
| | - E L Boespflug
- Department of Neurology (E.L.B., D.L.S., L.S.), Layton Aging and Alzheimer's Disease Center
| | - D L Schwartz
- Department of Neurology (E.L.B., D.L.S., L.S.), Layton Aging and Alzheimer's Disease Center.,Advanced Imaging Research Center (D.L.S.)
| | - M Luther
- From the Department of Pediatrics (J.P., M.L.), Division of Child Neurology, Doernbecher Children's Hospital
| | - A M Morales
- Department of Psychiatry (A.M.M., R.V.F., B.J.N.)
| | - A Lin
- Department of Emergency Medicine (A.L.), Center for Policy and Research in Emergency Medicine
| | - R V Fossen
- Department of Psychiatry (A.M.M., R.V.F., B.J.N.)
| | - L Silbert
- Department of Neurology (E.L.B., D.L.S., L.S.), Layton Aging and Alzheimer's Disease Center.,Department of Neurology (L.S.), Portland Veterans Affairs Medical Center, Portland, Oregon
| | - B J Nagel
- Department of Psychiatry (A.M.M., R.V.F., B.J.N.)
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9
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Jones SA, Morales AM, Holley AL, Wilson AC, Nagel BJ. Default mode network connectivity is related to pain frequency and intensity in adolescents. Neuroimage Clin 2020; 27:102326. [PMID: 32634754 PMCID: PMC7338779 DOI: 10.1016/j.nicl.2020.102326] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/09/2020] [Accepted: 06/21/2020] [Indexed: 01/23/2023]
Abstract
Pain symptoms in adolescents are associated with default mode network connectivity. More frequent pain is associated with more connectivity to the superior frontal gyrus. Higher pain intensity is associated with less connectivity to the cerebellum.
Pain during adolescence is common and is associated with future pain chronicity and mental health in adulthood. However, understanding of the neural underpinnings of chronic pain has largely come from studies in adults, with recent studies in adolescents suggesting potentially unique neural features during this vulnerable developmental period. In addition to alterations in the pain network, resting state functional magnetic resonance imaging studies in adults suggest alterations in the default mode network (DMN), involved in internally-driven, self-referential thought, may underlie chronic pain; however, these findings have yet to be examined in adolescents. The current study sought to investigate associations between pain frequency and intensity, and disruptions in DMN connectivity, in adolescents. Adolescents (ages 12–20) with varying levels of pain frequency and intensity, recruited from a pediatric pain clinic and the local community (n = 86; 60% female), underwent resting state functional magnetic resonance imaging. Using independent components analysis, the DMN was identified and correlated voxel-wise to assess associations between pain frequency and intensity and DMN connectivity. Findings revealed that adolescents with greater pain frequency demonstrated greater DMN to superior frontal gyrus connectivity, while adolescents with greater pain intensity demonstrated lesser DMN to cerebellum (lobule VIII) connectivity, during rest. These findings suggest that increasing levels of pain are associated with potential desegregation of the DMN and the prefrontal cortex, important for cognitive control, and with novel patterns of DMN to cerebellum connectivity. These findings may prove beneficial as neurobiological targets for future treatment efforts in adolescents.
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Affiliation(s)
- Scott A Jones
- Department of Psychiatry, Oregon Health & Science University, Portland, OR, USA
| | - Angelica M Morales
- Department of Psychiatry, Oregon Health & Science University, Portland, OR, USA
| | - Amy L Holley
- Department of Pediatrics, Oregon Health & Science University, Portland, OR, USA
| | - Anna C Wilson
- Department of Pediatrics, Oregon Health & Science University, Portland, OR, USA
| | - Bonnie J Nagel
- Department of Psychiatry, Oregon Health & Science University, Portland, OR, USA; Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, USA.
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10
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Morales AM, Jones SA, Harman G, Patching‐Bunch J, Nagel BJ. Associations between nucleus accumbens structural connectivity, brain function, and initiation of binge drinking. Addict Biol 2020; 25:e12767. [PMID: 31099090 DOI: 10.1111/adb.12767] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 02/28/2019] [Accepted: 03/31/2019] [Indexed: 02/03/2023]
Abstract
Adolescent alcohol use is associated with increased risk for alcohol use disorders later in life; therefore, identifying biomarkers for initiation of heavy alcohol use, such as individual differences in the development of white-matter microstructure, may inform prevention strategies that improve public health. This prospective cohort study included 40 adolescents, ages 14 and 15, without substantial history of alcohol or drug use at baseline. Fractional anisotropy (FA), an index of white-matter microstructure, was assessed in pathways connecting the nucleus accumbens (NAcc) to the rest of the brain using diffusion tensor imaging. Path analyses were conducted voxel-wise within these pathways to examine direct effects of premorbid FA on number of months between baseline assessment and the onset of binge drinking and indirect effects mediated by NAcc activation during decision making assessed using functional magnetic resonance imaging. Adolescents with lower premorbid accumbofrontal FA began binge drinking sooner, an effect which was mediated by greater NAcc activation during decision making involving greater levels of risk and reward (P < .05 corrected). An additional direct effect of FA on duration to onset of binge drinking was observed in white matter near the ventral pallidum, as adolescents with lower premorbid FA in this region began binge drinking sooner (P < .05 corrected). Findings suggest that delayed maturation of prefrontal white matter is associated with less top-down control over striatal sensitivity to reward. These factors, along with individual differences in white matter proximal to ventral pallidum, may represent premorbid risk factors for earlier initiation of heavy alcohol use.
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Affiliation(s)
- Angelica M. Morales
- Department of PsychiatryOregon Health and Science University Portland OR USA
| | - Scott A. Jones
- Department of PsychiatryOregon Health and Science University Portland OR USA
| | - Gareth Harman
- Department of PsychiatryOregon Health and Science University Portland OR USA
| | | | - Bonnie J. Nagel
- Department of PsychiatryOregon Health and Science University Portland OR USA
- Department of Behavioral NeuroscienceOregon Health and Science University Portland OR USA
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11
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Morales AM, Boyd SJ, Mackiewicz Seghete KL, Johnson AJ, De Bellis MD, Nagel BJ. Sex Differences in the Effect of Nucleus Accumbens Volume on Adolescent Drinking: The Mediating Role of Sensation Seeking in the NCANDA Sample. J Stud Alcohol Drugs 2019. [DOI: 10.15288/jsad.2019.80.594] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Angelica M. Morales
- Department of Psychiatry, Oregon Health & Science University, Portland, Oregon
| | - Stephen J. Boyd
- Department of Anesthesiology and Perioperative Medicine, Oregon Health & Science University, Portland, Oregon
| | | | - Alicia J. Johnson
- Department of Psychiatry, Oregon Health & Science University, Portland, Oregon
| | - Michael D. De Bellis
- Department of Psychiatry & Behavioral Sciences, Duke University School of Medicine, Durham, North Carolina
| | - Bonnie J. Nagel
- Department of Psychiatry, Oregon Health & Science University, Portland, Oregon
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, Oregon
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12
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Kohno M, Morales AM, Dennis LE, McCready H, Hoffman WF, Korthuis PT. Effects of Naltrexone on Large-Scale Network Interactions in Methamphetamine Use Disorder. Front Psychiatry 2019; 10:603. [PMID: 31551824 PMCID: PMC6735261 DOI: 10.3389/fpsyt.2019.00603] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 07/30/2019] [Indexed: 01/24/2023] Open
Abstract
Naltrexone attenuates craving, and the subjective effects of methamphetamine and extended-release naltrexone (XR-NTX) reduces functional connectivity between regions of the striatum and limbic cortex. Naltrexone modulates neural activity at dopaminergic synapses; however, it is unclear whether naltrexone has an effect on large-scale brain networks. Functional networks interact to coordinate behavior, and as substance-use disorders are associated with an imbalance between reward and cognitive control networks, treatment approaches that target interactive brain systems underlying addiction may be a useful adjunct for behavioral therapies. The objective of this study was to examine the effect of XR-NTX on large-scale brain networks and to determine whether changes in network relationships attenuate drug use, craving, and addiction severity. Thirty-nine participants in or seeking treatment for methamphetamine-use disorder were enrolled in a clinical trial of XR-NTX between May 2013 and March 2015 (Clinicaltrials.gov NCT01822132). Functional magnetic resonance imaging (fMRI) and questionnaires were conducted before and after double-blinded randomization to a 4-week injection of XR-NTX or placebo. In the XR-NTX group, methamphetamine use was reduced along with a decrease in the coupling between executive control (ECN) and default mode (DMN) networks. As decoupling of ECN and DMN networks was associated with change in the severity of dependence, the results suggest that XR-NTX may modulate and enhance ECN attentional resources and suppress DMN self-referential and emotional processing. This study identifies the effect of naltrexone on changes in the intrinsic functional coupling of large-scale brain networks and provides a more systematic understanding of how large-scale networks interact to promote behavioral change in methamphetamine-use disorder.
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Affiliation(s)
- Milky Kohno
- Department of Psychiatry, Oregon Health and Science University, Portland, OR, United States.,Department of Behavioral Neuroscience, Oregon Health and Science University, Portland, OR, United States.,Research and Development Service, Veterans Affairs Portland Health Care System, Portland, OR, United States.,Methamphetamine Abuse Research Center, Oregon Health and Science University and Veterans Affairs Portland Health Care System, Portland, OR, United States
| | - Angelica M Morales
- Department of Psychiatry, Oregon Health and Science University, Portland, OR, United States.,Department of Behavioral Neuroscience, Oregon Health and Science University, Portland, OR, United States
| | - Laura E Dennis
- Department of Psychiatry, Oregon Health and Science University, Portland, OR, United States.,Research and Development Service, Veterans Affairs Portland Health Care System, Portland, OR, United States
| | - Holly McCready
- Department of Psychiatry, Oregon Health and Science University, Portland, OR, United States.,Research and Development Service, Veterans Affairs Portland Health Care System, Portland, OR, United States
| | - William F Hoffman
- Department of Psychiatry, Oregon Health and Science University, Portland, OR, United States.,Department of Behavioral Neuroscience, Oregon Health and Science University, Portland, OR, United States.,Research and Development Service, Veterans Affairs Portland Health Care System, Portland, OR, United States.,Methamphetamine Abuse Research Center, Oregon Health and Science University and Veterans Affairs Portland Health Care System, Portland, OR, United States.,Mental Health Division, Veterans Affairs Portland Health Care System, Portland, OR, United States
| | - P Todd Korthuis
- Section of Addiction Medicine, Oregon Health and Science University, Portland, OR, United States
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13
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Jones SA, Morales AM, Nagel BJ. Resilience to Risk for Psychopathology: The Role of White Matter Microstructural Development in Adolescence. Biol Psychiatry Cogn Neurosci Neuroimaging 2018; 4:180-189. [PMID: 30322710 DOI: 10.1016/j.bpsc.2018.08.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 08/13/2018] [Accepted: 08/13/2018] [Indexed: 11/24/2022]
Abstract
BACKGROUND One major risk factor for the development of psychopathology is a family history of psychopathology (FHP). Cross-sectional studies have shown that FHP is associated with alterations in white matter microstructure in adolescents without current psychopathology; however, whether these associations persist throughout adolescence, particularly in those who remain resilient to developing psychopathology, is unclear. METHODS Sixty-six adolescents underwent diffusion-weighted imaging at baseline (12-16 years of age) and at one or two follow-up visits (142 total scans). Adolescents' parents completed a modified Family History Assessment Module to calculate FHP density (FHPD) based on familial alcohol use, substance use, and major depressive, generalized anxiety, substance-induced mood, and antisocial personality disorders. The relationship between FHPD and white matter microstructural development was examined using multilevel modeling. RESULTS FHPD was associated with significant alterations in white matter microstructure at baseline; in the bilateral superior corona radiata and left superior longitudinal fasciculus, these effects were transient (FHPD was associated with altered white matter microstructure only in early adolescence), while effects in the posterior limb of the internal capsule were persistent. Associations between FHPD and white matter microstructure in the body of the corpus callosum emerged later in adolescence. CONCLUSIONS This prospective, longitudinal study provides novel information indicating that the association between FHP and white matter microstructure previously observed in adolescents is transient in most regions but may persist into late adolescence in other regions, despite current resilience to developing psychopathology. Future studies are necessary to determine if these persistent alterations are associated with onset of psychopathology later in life.
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Affiliation(s)
- Scott A Jones
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, Oregon
| | - Angelica M Morales
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, Oregon
| | - Bonnie J Nagel
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, Oregon; Department of Psychiatry, Oregon Health & Science University, Portland, Oregon.
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14
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Jones SA, Morales AM, Lavine JB, Nagel BJ. Convergent neurobiological predictors of emergent psychopathology during adolescence. Birth Defects Res 2018; 109:1613-1622. [PMID: 29251844 DOI: 10.1002/bdr2.1176] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 11/02/2017] [Indexed: 01/03/2023]
Abstract
The adolescent brain undergoes significant structural and functional development. Through the use of magnetic resonance imaging in adolescents, it has been demonstrated that the prefrontal cortex, pertinent for executive control, demonstrates protracted development compared to limbic structures, active during emotion and reward processing. This asynchronous development creates a sensitive window during adolescence, in which many psychopathological disorders (i.e., mental health and substance use) emerge. This review outlines longitudinal studies that use magnetic resonance imaging to identify neurobiological predictors of emergent psychopathology (depression, anxiety, and substance use), during adolescence. Studies identifying neurobiological markers that predict onset and escalation of these disorders, as well as those that predict successful treatment outcomes are explored. An emphasis is placed on frontolimbic brain structures, a convergent neurobiological target for both emergent mental health issues and emergent substance use. The literature reviewed herein suggests that reduced volume and cortical thickness in frontolimbic regions, as well as reduced functional activation (particularly during task involving reward or emotional stimuli) in these regions, may serve as a neurobiological predictors of emergent psychopathology in adolescence. This knowledge is crucial, as it may be used to develop neurobiologically targeted prevention and intervention strategies for youth who are at-risk for developing these psychopathologies.
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Affiliation(s)
- Scott A Jones
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, Oregon
| | - Angelica M Morales
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, Oregon
| | - Jessye B Lavine
- Department of Psychiatry, Oregon Health & Science University, Portland, Oregon
| | - Bonnie J Nagel
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, Oregon.,Department of Psychiatry, Oregon Health & Science University, Portland, Oregon
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15
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Dean AC, Morales AM, Hellemann G, London ED. Cognitive deficit in methamphetamine users relative to childhood academic performance: link to cortical thickness. Neuropsychopharmacology 2018; 43:1745-1752. [PMID: 29704001 PMCID: PMC6006320 DOI: 10.1038/s41386-018-0065-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 03/26/2018] [Accepted: 04/04/2018] [Indexed: 01/09/2023]
Abstract
Individuals with cognitive problems may be predisposed to develop substance use disorders; therefore, differences in cognitive function between methamphetamine users and control participants may be attributable to premorbid factors rather than methamphetamine use. The goal of this study was to clarify the extent to which this is the case. Childhood academic transcripts were obtained for 37 methamphetamine-dependent adults and 41 control participants of similar educational level and premorbid IQ. Each participant completed a comprehensive cognitive battery and received a structural magnetic resonance imaging scan. Data from control participants and linear regression were used to develop a normative model to describe the relationship between childhood academic performance and scores on the cognitive battery. Using this model, cognitive performance of methamphetamine users was predicted from their premorbid academic scores. Results indicated that methamphetamine users' childhood grade point average was significantly lower than that of the control group (p < 0.05). Further, methamphetamine users' overall cognitive performance was lower than was predicted from their grade point average prior to methamphetamine use (p = 0.001), with specific deficits in attention/concentration and memory (ps < 0.01). Memory deficits were associated with lower whole-brain cortical thickness (p < 0.05). Thus, in addition to having an apparent premorbid weakness in cognition, methamphetamine users exhibit subsequent cognitive function that is significantly lower than premorbid estimates would predict. The results support the view that chronic methamphetamine use causes a decline in cognition and/or a failure to develop normative cognitive abilities, although aside from methamphetamine use per se, other drug use and unidentified factors likely contribute to the observed effects.
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Affiliation(s)
- Andy C. Dean
- 0000 0000 9632 6718grid.19006.3eDepartment of Psychiatry and Biobehavioral Sciences, UCLA Semel Institute for Neuroscience, David Geffen School of Medicine, Los Angeles, CA 90024 USA ,0000 0000 9632 6718grid.19006.3eBrain Research Institute, David Geffen School of Medicine, Los Angeles, CA 90024 USA
| | - Angelica M. Morales
- 0000 0000 9632 6718grid.19006.3eDepartment of Psychiatry and Biobehavioral Sciences, UCLA Semel Institute for Neuroscience, David Geffen School of Medicine, Los Angeles, CA 90024 USA
| | - Gerhard Hellemann
- 0000 0000 9632 6718grid.19006.3eDepartment of Psychiatry and Biobehavioral Sciences, UCLA Semel Institute for Neuroscience, David Geffen School of Medicine, Los Angeles, CA 90024 USA
| | - Edythe D. London
- 0000 0000 9632 6718grid.19006.3eDepartment of Psychiatry and Biobehavioral Sciences, UCLA Semel Institute for Neuroscience, David Geffen School of Medicine, Los Angeles, CA 90024 USA ,0000 0000 9632 6718grid.19006.3eBrain Research Institute, David Geffen School of Medicine, Los Angeles, CA 90024 USA ,0000 0000 9632 6718grid.19006.3eDepartment of Molecular and Medical Pharmacology, David Geffen School of Medicine, Los Angeles, CA 90024 USA
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16
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Kohno M, Morales AM, Guttman Z, London ED. A neural network that links brain function, white-matter structure and risky behavior. Neuroimage 2017; 149:15-22. [PMID: 28131889 DOI: 10.1016/j.neuroimage.2017.01.058] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 01/03/2017] [Accepted: 01/24/2017] [Indexed: 10/20/2022] Open
Abstract
The ability to evaluate the balance between risk and reward and to adjust behavior accordingly is fundamental to adaptive decision-making. Although brain-imaging studies consistently have shown involvement of the dorsolateral prefrontal cortex, anterior insula and striatum during risky decision-making, activation in a neural network formed by these regions has not been linked to structural connectivity. Therefore, in this study, white-matter connectivity was measured with diffusion-weighted imaging in 40 healthy research participants who performed the Balloon Analogue Risk Task, a test of risky decision-making, during fMRI. Fractional anisotropy within a network that includes white-matter pathways connecting four regions (the prefrontal cortex, insula and midbrain to the striatum) was positively correlated with the number of risky choices and total amount earned on the task, and with the parametric modulation of activation in regions within the network to the level of risk during choice selection. Furthermore, analysis using a mixed model demonstrated how relationships of the parametric modulation of activation in each of the four aforementioned regions are related to risk probabilities, and how previous trial outcomes and task progression influence the choice to take risk. The present findings provide the first direct evidence that white-matter integrity is linked to function within previously identified components of a network that is activated during risky decision-making, and demonstrate that the integrity of white-matter tracts is critical in consolidating and processing signals between cortical and striatal circuits during the decision-making process.
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Affiliation(s)
- Milky Kohno
- Dept. of Psychiatry & Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Angelica M Morales
- Dept. of Psychiatry & Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Zoe Guttman
- Neuroscience Interdepartmental Program, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Edythe D London
- Dept. of Psychiatry & Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA 90095, USA; Neuroscience Interdepartmental Program, University of California Los Angeles, Los Angeles, CA 90095, USA; Dept. of Molecular & Medical Pharmacology, University of California Los Angeles, Los Angeles, CA 90095, USA; Brain Research Institute, University of California Los Angeles, Los Angeles, CA 90095, USA.
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17
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Hofmeyr A, Monterosso J, Dean AC, Morales AM, Bilder RM, Sabb FW, London ED. Mixture models of delay discounting and smoking behavior. The American Journal of Drug and Alcohol Abuse 2016; 43:271-280. [DOI: 10.1080/00952990.2016.1198797] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Andre Hofmeyr
- School of Economics, University of Cape Town, Cape Town, South Africa
| | - John Monterosso
- Department of Psychology, University of Southern California, Los Angeles, CA, USA
- Neuroscience Graduate Program, University of Southern California, Los Angeles, CA, USA
- Brain and Creativity Institute, University of Southern California, Los Angeles, CA, USA
| | - Andy C. Dean
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, USA
- Brain Research Institute, University of California Los Angeles, Los Angeles, CA, USA
- Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, CA, USA
| | - Angelica M. Morales
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, USA
- Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, CA, USA
| | - Robert M. Bilder
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, USA
- Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, CA, USA
- Department of Psychology, University of California Los Angeles, Los Angeles, CA, USA
- Steward & Lynda Resnick Neuropsychiatric Hospital, University of California Los Angeles, Los Angeles, CA, USA
| | - Fred W. Sabb
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, USA
- Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, CA, USA
- Lewis Center for Neuroimaging, University of Oregon, Eugene, OR, USA
| | - Edythe D. London
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, USA
- Brain Research Institute, University of California Los Angeles, Los Angeles, CA, USA
- Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, CA, USA
- Department of Molecular and Medical Pharmacology, University of California Los Angeles, Los Angeles, CA, USA
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18
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Kohno M, Nurmi EL, Laughlin CP, Morales AM, Gail EH, Hellemann GS, London ED. Functional Genetic Variation in Dopamine Signaling Moderates Prefrontal Cortical Activity During Risky Decision Making. Neuropsychopharmacology 2016; 41:695-703. [PMID: 26119471 PMCID: PMC4707816 DOI: 10.1038/npp.2015.192] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 06/02/2015] [Accepted: 06/03/2015] [Indexed: 01/08/2023]
Abstract
Brain imaging has revealed links between prefrontal activity during risky decision-making and striatal dopamine receptors. Specifically, striatal dopamine D2-like receptor availability is correlated with risk-taking behavior and sensitivity of prefrontal activation to risk in the Balloon Analogue Risk Task (BART). The extent to which these associations, involving a single neurochemical measure, reflect more general effects of dopaminergic functioning on risky decision making, however, is unknown. Here, 65 healthy participants provided genotypes and performed the BART during functional magnetic resonance imaging. For each participant, dopamine function was assessed using a gene composite score combining known functional variation across five genes involved in dopaminergic signaling: DRD2, DRD3, DRD4, DAT1, and COMT. The gene composite score was negatively related to dorsolateral prefrontal cortical function during risky decision making, and nonlinearly related to earnings on the task. Iterative permutations of all possible allelic variations (7777 allelic combinations) was tested on brain function in an independently defined region of the prefrontal cortex and confirmed empirical validity of the composite score, which yielded stronger association than 95% of all other possible combinations. The gene composite score also accounted for a greater proportion of variability in neural and behavioral measures than the independent effects of each gene variant, indicating that the combined effects of functional dopamine pathway genes can provide a robust assessment, presumably reflecting the cumulative and potentially interactive effects on brain function. Our findings support the view that the links between dopaminergic signaling, prefrontal function, and decision making vary as a function of dopamine signaling capacity.
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Affiliation(s)
- Milky Kohno
- Department of Psychiatry and Biobehavioral Sciences and Semel Institute, University of California Los Angeles, Los Angeles, CA, USA
| | - Erika L Nurmi
- Department of Psychiatry and Biobehavioral Sciences and Semel Institute, University of California Los Angeles, Los Angeles, CA, USA
| | - Christopher P Laughlin
- Department of Psychiatry and Biobehavioral Sciences and Semel Institute, University of California Los Angeles, Los Angeles, CA, USA
| | - Angelica M Morales
- Department of Psychiatry and Biobehavioral Sciences and Semel Institute, University of California Los Angeles, Los Angeles, CA, USA
| | - Emma H Gail
- Department of Psychiatry and Biobehavioral Sciences and Semel Institute, University of California Los Angeles, Los Angeles, CA, USA
| | - Gerhard S Hellemann
- Department of Psychiatry and Biobehavioral Sciences and Semel Institute, University of California Los Angeles, Los Angeles, CA, USA
| | - Edythe D London
- Department of Psychiatry and Biobehavioral Sciences and Semel Institute, University of California Los Angeles, Los Angeles, CA, USA,Department of Molecular and Medical Pharmacology, University of California Los Angeles, Los Angeles, CA, USA,Brain Research Institute, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA,Semel Institute of Neuroscience and Human Behavior, University of California Los Angeles, 760 Westwood Plaza, Los Angeles, CA 90024-1759, USA, Tel: +310 825 0606, Fax: +310 825 0812, E-mail:
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19
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Mackey S, Kan KJ, Chaarani B, Alia-Klein N, Batalla A, Brooks S, Cousijn J, Dagher A, de Ruiter M, Desrivieres S, Feldstein Ewing SW, Goldstein RZ, Goudriaan AE, Heitzeg MM, Hutchison K, Li CSR, London ED, Lorenzetti V, Luijten M, Martin-Santos R, Morales AM, Paulus MP, Paus T, Pearlson G, Schluter R, Momenan R, Schmaal L, Schumann G, Sinha R, Sjoerds Z, Stein DJ, Stein EA, Solowij N, Tapert S, Uhlmann A, Veltman D, van Holst R, Walter H, Wright MJ, Yucel M, Yurgelun-Todd D, Hibar DP, Jahanshad N, Thompson PM, Glahn DC, Garavan H, Conrod P. Genetic imaging consortium for addiction medicine: From neuroimaging to genes. Prog Brain Res 2015; 224:203-23. [PMID: 26822360 PMCID: PMC4820288 DOI: 10.1016/bs.pbr.2015.07.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Since the sample size of a typical neuroimaging study lacks sufficient statistical power to explore unknown genomic associations with brain phenotypes, several international genetic imaging consortia have been organized in recent years to pool data across sites. The challenges and achievements of these consortia are considered here with the goal of leveraging these resources to study addiction. The authors of this review have joined together to form an Addiction working group within the framework of the ENIGMA project, a meta-analytic approach to multisite genetic imaging data. Collectively, the Addiction working group possesses neuroimaging and genomic data obtained from over 10,000 subjects. The deadline for contributing data to the first round of analyses occurred at the beginning of May 2015. The studies performed on this data should significantly impact our understanding of the genetic and neurobiological basis of addiction.
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Affiliation(s)
- Scott Mackey
- Departments of Psychiatry and Psychology, University of Vermont, Burlington, VT, USA.
| | - Kees-Jan Kan
- Departments of Psychiatry and Psychology, University of Vermont, Burlington, VT, USA
| | - Bader Chaarani
- Departments of Psychiatry and Psychology, University of Vermont, Burlington, VT, USA
| | - Nelly Alia-Klein
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Albert Batalla
- Department of Psychiatry and Psychology, Hospital Clínic, IDIBAPS, CIBERSAM, University of Barcelona, Barcelona, Spain; Department of Psychiatry, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Samantha Brooks
- Department of Psychiatry and MRC Unit on Anxiety & Stress Disorders, University of Cape Town, Cape Town, South Africa
| | - Janna Cousijn
- Department of Psychiatry and MRC Unit on Anxiety & Stress Disorders, University of Cape Town, Cape Town, South Africa
| | - Alain Dagher
- Montreal Neurological Institute, McGill University, Montreal, QC, Canada
| | - Michiel de Ruiter
- Department of Psychosocial Research and Epidemiology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | | | | | - Rita Z Goldstein
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Anna E Goudriaan
- Department of Psychiatry and MRC Unit on Anxiety & Stress Disorders, University of Cape Town, Cape Town, South Africa; Department of Psychiatry, University of Amsterdam, Amsterdam, The Netherlands
| | - Mary M Heitzeg
- Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Kent Hutchison
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO, USA
| | - Chiang-Shan R Li
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Edythe D London
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA; David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA
| | - Valentina Lorenzetti
- School of Psychological Sciences, Monash Institute of Cognitive and Clinical Neurosciences and Monash Biomedical Imaging, Monash University, Melbourne, Australia
| | - Maartje Luijten
- Behavioural Science Institute, Radboud University, Nijmegen, The Netherlands
| | - Rocio Martin-Santos
- Department of Psychiatry and Psychology, Hospital Clínic, IDIBAPS, CIBERSAM, University of Barcelona, Barcelona, Spain
| | - Angelica M Morales
- David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA
| | - Martin P Paulus
- VA San Diego Healthcare System and Department of Psychiatry, University of California San Diego, La Jolla, CA, USA; Laureate Institute for Brain Research, Tulsa, OK, USA
| | - Tomas Paus
- Rotman Research Institute, University of Toronto, Toronto, ON, Canada
| | - Godfrey Pearlson
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Renée Schluter
- Department of Psychiatry, University of Amsterdam, Amsterdam, The Netherlands
| | - Reza Momenan
- Section on Brain Electrophysiology and Imaging, Institute on Alcohol Abuse and Alcoholism, Bethesda, USA
| | - Lianne Schmaal
- Department of Psychiatry, VU University Medical Center, Amsterdam, The Netherlands
| | | | - Rajita Sinha
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Zsuzsika Sjoerds
- Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - Dan J Stein
- Department of Psychiatry and MRC Unit on Anxiety & Stress Disorders, University of Cape Town, Cape Town, South Africa
| | - Elliot A Stein
- Intramural Research Program-Neuroimaging Research Branch, National Institute on Drug Abuse, Baltimore, MD, USA
| | - Nadia Solowij
- School of Psychology, University of Wollongong, Wollongong, NSW, Australia
| | - Susan Tapert
- Laureate Institute for Brain Research, Tulsa, OK, USA
| | - Anne Uhlmann
- Department of Psychiatry and MRC Unit on Anxiety & Stress Disorders, University of Cape Town, Cape Town, South Africa
| | - Dick Veltman
- Department of Psychiatry, VU University Medical Center, Amsterdam, The Netherlands
| | - Ruth van Holst
- Department of Psychiatry, University of Amsterdam, Amsterdam, The Netherlands
| | - Henrik Walter
- Department of Psychiatry and Psychotherapy, Charité Universitatsmedizin, Berlin, Germany
| | | | - Murat Yucel
- School of Psychological Sciences, Monash Institute of Cognitive and Clinical Neurosciences and Monash Biomedical Imaging, Monash University, Melbourne, Australia
| | - Deborah Yurgelun-Todd
- Department of Psychiatry, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Derrek P Hibar
- Department of Neurology, Imaging Genetics Center, Keck School of Medicine, University of Southern California, Marina del Rey, CA, USA
| | - Neda Jahanshad
- Department of Neurology, Imaging Genetics Center, Keck School of Medicine, University of Southern California, Marina del Rey, CA, USA
| | - Paul M Thompson
- Department of Neurology, Imaging Genetics Center, Keck School of Medicine, University of Southern California, Marina del Rey, CA, USA
| | - David C Glahn
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Hugh Garavan
- Departments of Psychiatry and Psychology, University of Vermont, Burlington, VT, USA
| | - Patricia Conrod
- Department of Psychiatry, Université de Montreal, CHU Ste Justine Hospital, Montreal, QC, Canada
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Dean AC, Kohno M, Morales AM, Ghahremani DG, London ED. Denial in methamphetamine users: Associations with cognition and functional connectivity in brain. Drug Alcohol Depend 2015; 151:84-91. [PMID: 25840750 PMCID: PMC4447566 DOI: 10.1016/j.drugalcdep.2015.03.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 02/18/2015] [Accepted: 03/04/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Despite harmful consequences of drug addiction, it is common for individuals with substance use disorders to deny having problems with drugs. Emerging evidence suggests that some drug users lack insight into their behavior due to neurocognitive dysfunction, but little research has examined potential neurocognitive contributions to denial. METHODS This study explored the relationship between denial, cognitive performance and functional connectivity in brain. The participants were 58 non-treatment-seeking, methamphetamine-dependent participants who completed the URICA precontemplation scale, a self-report measure of denial of drug problems warranting change, as well as a cognitive test battery. A subset of participants (N = 21) had functional MRI scans assessing resting-state functional connectivity. Given literature indicating roles of the rostral anterior cingulate (rACC), anterior insula and precuneus in self-awareness, relationships between denial and resting-state connectivity were tested using seeds placed in these regions. RESULTS The results revealed a negative relationship between denial and an overall cognitive battery score (p = 0.001), the effect being driven particularly by performance on tests of memory and executive function. Denial was negatively associated with strength of connectivity between the rACC and regions of the frontal lobe (precentral gyri, left ventromedial prefrontal cortex, left orbitofrontal cortex), limbic system (left amygdala, left hippocampus and left parahippocampal gyrus), occipital lobes and cerebellum; and between the precuneus and the midbrain and cerebellum. Anterior insula connectivity was unrelated to denial. CONCLUSIONS These findings suggest that denial by methamphetamine users is linked with a cognitive and neural phenotype that may impede the development of insight into their behavior.
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Affiliation(s)
- Andy C. Dean
- Department of Psychiatry and Biobehavioral Sciences, UCLA Semel Institute for Neuroscience, David Geffen School of Medicine, Los Angeles, CA, 90024, USA,Brain Research Institute, David Geffen School of Medicine, Los Angeles, CA, 90024, USA,Corresponding author: Andy C. Dean (), UCLA Semel Institute for Neuroscience and Human Behavior, 760 Westwood Plaza, Los Angeles, CA, United States of America 90095-1759, Tel: +1 310 825 5839; fax: +1 310 825 0812
| | - Milky Kohno
- Department of Psychiatry and Biobehavioral Sciences, UCLA Semel Institute for Neuroscience, David Geffen School of Medicine, Los Angeles, CA, 90024, USA
| | - Angelica M. Morales
- Department of Psychiatry and Biobehavioral Sciences, UCLA Semel Institute for Neuroscience, David Geffen School of Medicine, Los Angeles, CA, 90024, USA
| | - Dara G. Ghahremani
- Department of Psychiatry and Biobehavioral Sciences, UCLA Semel Institute for Neuroscience, David Geffen School of Medicine, Los Angeles, CA, 90024, USA
| | - Edythe D. London
- Department of Psychiatry and Biobehavioral Sciences, UCLA Semel Institute for Neuroscience, David Geffen School of Medicine, Los Angeles, CA, 90024, USA,Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, Los Angeles, CA, 90024 USA,Brain Research Institute, David Geffen School of Medicine, Los Angeles, CA, 90024, USA
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21
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London ED, Kohno M, Morales AM, Ballard ME. Chronic methamphetamine abuse and corticostriatal deficits revealed by neuroimaging. Brain Res 2014; 1628:174-85. [PMID: 25451127 DOI: 10.1016/j.brainres.2014.10.044] [Citation(s) in RCA: 119] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 10/17/2014] [Accepted: 10/22/2014] [Indexed: 01/05/2023]
Abstract
Despite aggressive efforts to contain it, methamphetamine use disorder continues to be major public health problem; and with generic behavioral therapies still the mainstay of treatment for methamphetamine abuse, rates of attrition and relapse remain high. This review summarizes the findings of structural, molecular, and functional neuroimaging studies of methamphetamine abusers, focusing on cortical and striatal abnormalities and their potential contributions to cognitive and behavioral phenotypes that can serve to promote compulsive drug use. These studies indicate that individuals with a history of chronic methamphetamine abuse often display several signs of corticostriatal dysfunction, including abnormal gray- and white-matter integrity, monoamine neurotransmitter system deficiencies, neuroinflammation, poor neuronal integrity, and aberrant patterns of brain connectivity and function, both when engaged in cognitive tasks and at rest. More importantly, many of these neural abnormalities were found to be linked with certain addiction-related phenotypes that may influence treatment response (e.g., poor self-control, cognitive inflexibility, maladaptive decision-making), raising the possibility that they may represent novel therapeutic targets.
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Affiliation(s)
- Edythe D London
- Departments of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, California 90024; Departments of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, California 90024; Departments of Brain Research Institute, University of California, Los Angeles, Los Angeles, California 90024.
| | - Milky Kohno
- Departments of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, California 90024
| | - Angelica M Morales
- Departments of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, California 90024
| | - Michael E Ballard
- Departments of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, California 90024
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22
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Kohno M, Morales AM, Ghahremani DG, Hellemann G, London ED. Risky decision making, prefrontal cortex, and mesocorticolimbic functional connectivity in methamphetamine dependence. JAMA Psychiatry 2014; 71:812-20. [PMID: 24850532 PMCID: PMC4119006 DOI: 10.1001/jamapsychiatry.2014.399] [Citation(s) in RCA: 119] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
IMPORTANCE Various neuropsychiatric disorders, especially addictions, feature impairments in risky decision making; clarifying the neural mechanisms underlying this problem can inform treatment. OBJECTIVE To determine how methamphetamine-dependent and control participants differ in brain activation during a risky decision-making task, resting-state functional connectivity within mesolimbic and executive control circuits, and the relationships between these measures. DESIGN, SETTING, AND PARTICIPANTS A case-control, functional magnetic resonance imaging study of methamphetamine-dependent and healthy comparison participants at rest and when performing the Balloon Analogue Risk Task, which involves the choice to pump a balloon or to cash out in the context of uncertain risk. Conducted at a clinical research center at an academic institution, this study involved 25 methamphetamine-dependent and 27 control participants. MAIN OUTCOMES AND MEASURES Parametric modulation of activation in the striatum and right dorsolateral prefrontal cortex (rDLPFC; ie, the degree to which activation changed as a linear function of risk and potential reward), both indexed by pump number, and resting-state functional connectivity, measured in the whole brain with seeds in the midbrain and rDLPFC. Relationships between these outcomes were also tested. RESULTS Parametric modulation of cortical and striatal activation by pump number during risk taking differed with group. It was stronger in the ventral striatum but weaker in the rDLPFC in methamphetamine-dependent participants than control individuals. Methamphetamine-dependent participants also exhibited greater resting-state functional connectivity of the midbrain with the putamen, amygdala, and hippocampus (P < .05, whole brain, cluster corrected). This connectivity was negatively related to modulation of rDLPFC activation by risk level during risky decision making. In control participants, parametric modulation of rDLPFC activation by risk during decision making was positively related to resting-state functional connectivity of the rDLPFC with the striatum. CONCLUSIONS AND RELEVANCE Maladaptive decision making by methamphetamine users may reflect circuit-level dysfunction, underlying deficits in task-based activation. Heightened resting-state connectivity within the mesocorticolimbic system, coupled with reduced prefrontal cortical connectivity, may create a bias toward reward-driven behavior over cognitive control in methamphetamine users. Interventions to improve this balance may enhance treatments for stimulant dependence and other disorders that involve maladaptive decision making.
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Affiliation(s)
- Milky Kohno
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA 90095
| | - Angelica M. Morales
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA 90095
| | - Dara G. Ghahremani
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA 90095
| | - Gerhard Hellemann
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA 90095
| | - Edythe D. London
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA 90095,Brain Research Institute, University of California Los Angeles, Los Angeles, CA 90095,Department of Molecular and Medical Pharmacology, University of California Los Angeles, Los Angeles, CA 90095
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23
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Morales AM, Ghahremani D, Kohno M, Hellemann GS, London ED. Cigarette exposure, dependence, and craving are related to insula thickness in young adult smokers. Neuropsychopharmacology 2014; 39:1816-22. [PMID: 24584328 PMCID: PMC4059909 DOI: 10.1038/npp.2014.48] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 01/07/2014] [Accepted: 02/21/2014] [Indexed: 12/12/2022]
Abstract
The age period spanning late adolescence to emergent adulthood is associated with the highest prevalence of cigarette smoking in the United States, and is also a time of continued brain development. Nonetheless, although prior research has shown group differences in brain structure associated with smoking status in adults, few studies have examined how smoking and associated behavioral states relate to brain structure in this age group. Neuroimaging and lesion studies have suggested that the insula, a cortical region that integrates heterogeneous signals about internal states and contributes to executive functions, plays an important role in cigarette smoking behavior. Using high-resolution structural magnetic resonance imaging, we therefore measured cortical thickness of the insula in 18 smokers and 24 nonsmokers between the ages of 16 and 21 years. There were no group differences in insula thickness, but cigarette exposure (pack-years) was negatively associated with thickness in right insula. Cigarette dependence and the urge to smoke were negatively related to cortical thickness in the right ventral anterior insula. Although the results do not demonstrate causation, they do suggest that there are effects of cigarette exposure on brain structure in young smokers, with a relatively short smoking history. It is possible that changes in the brain due to prolonged exposure or to the progression of dependence lead to more extensive structural changes, manifested in the reported group differences between adult smokers and nonsmokers. Structural integrity of the insula may have implications for predicting long-term cigarette smoking and problems with other substance abuse in this population.
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Affiliation(s)
- Angelica M Morales
- Neuroscience Interdepartmental Program, University of California, Los Angeles, Los Angeles, CA, USA,Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA, USA,Brain Research Institute, University of California, Los Angeles, Los Angeles, CA, USA
| | - Dara Ghahremani
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA, USA
| | - Milky Kohno
- Neuroscience Interdepartmental Program, University of California, Los Angeles, Los Angeles, CA, USA,Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA, USA,Brain Research Institute, University of California, Los Angeles, Los Angeles, CA, USA
| | - Gerhard S Hellemann
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA, USA
| | - Edythe D London
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA, USA,Brain Research Institute, University of California, Los Angeles, Los Angeles, CA, USA,Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA,Semel Institute of Neuroscience and Human Behavior, University of California, Los Angeles, 760 Westwood Plaza, Los Angeles, CA 90024-1759, USA, Tel: +1 310 825 0606, Fax: +1 310 825 0812, E-mail:
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24
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Groman SM, Morales AM, Lee B, London ED, Jentsch JD. Methamphetamine-induced increases in putamen gray matter associate with inhibitory control. Psychopharmacology (Berl) 2013; 229:527-38. [PMID: 23748383 PMCID: PMC3770792 DOI: 10.1007/s00213-013-3159-9] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Accepted: 05/18/2013] [Indexed: 10/26/2022]
Abstract
RATIONALE Problematic drug use is associated with difficulty in exerting self-control over behaviors, and this difficulty may be a consequence of atypical morphometric characteristics that are exhibited by drug-experienced individuals. The extent to which these structural abnormalities result from drug use or reflect neurobiological risk factors that predate drug use, however, is unknown. OBJECTIVES The purpose of this study is to determine how methamphetamine affects corticostriatal structure and how drug-induced changes relate to alterations in inhibitory control. METHODS Structural magnetic resonance images and positron emission tomography (PET) scans, assessing dopamine D₂-like receptor and transporter availability, were acquired in monkeys trained to acquire, retain, and reverse three-choice visual discrimination problems before and after exposure to an escalating dose regimen of methamphetamine (or saline, as a control). Voxel-based morphometry was used to compare changes in corticostriatal gray matter between methamphetamine- and saline-exposed monkeys. The change in gray matter before and after the dosing regimen was compared to the change in the behavioral performance and in dopaminergic markers measured with PET. RESULTS Methamphetamine exposure, compared to saline, increased gray matter within the right putamen. These changes were positively correlated with changes in performance of methamphetamine-exposed monkeys in the reversal phase, and were negatively correlated with alterations in D₂-like receptor and DAT availability. CONCLUSIONS The results provide the first evidence that exposure to a methamphetamine dosing regimen that resembles human use alters the structural integrity of the striatum and that gray-matter abnormalities detected in human methamphetamine users are due, at least in part, to the pharmacological effects of drug experience.
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Affiliation(s)
| | - Angelica M. Morales
- Department of Psychiatry & Bio-behavioral Sciences, University of California, Los Angeles
| | - Buyean Lee
- Department of Psychiatry & Bio-behavioral Sciences, University of California, Los Angeles
| | - Edythe D. London
- Department of Psychiatry & Bio-behavioral Sciences, University of California, Los Angeles,Department of Medical and Molecular Pharmacology, University of California, Los Angeles
| | - James David Jentsch
- Department of Psychology, University of California, Los Angeles,Department of Psychiatry & Bio-behavioral Sciences, University of California, Los Angeles,Correspondence should be sent to: J. David Jentsch () UCLA Department of Psychology PO Box 951563 Los Angeles, CA 90095-1563
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25
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Kohno M, Ghahremani DG, Morales AM, Robertson CL, Ishibashi K, Morgan AT, Mandelkern MA, London ED. Risk-taking behavior: dopamine D2/D3 receptors, feedback, and frontolimbic activity. Cereb Cortex 2013; 25:236-45. [PMID: 23966584 DOI: 10.1093/cercor/bht218] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Decision-making involves frontolimbic and dopaminergic brain regions, but how prior choice outcomes, dopamine neurotransmission, and frontostriatal activity are integrated to affect choices is unclear. We tested 60 healthy volunteers using the Balloon Analogue Risk Task (BART) during functional magnetic resonance imaging. In the BART, participants can pump virtual balloons to increase potential monetary reward or cash out to receive accumulated reward; each pump presents greater risk and potential reward (represented by the pump number). In a separate session, we measured striatal D2/D3 dopamine receptor binding potential (BPND) with positron emission tomography in 13 of the participants. Losses were followed by fewer risky choices than wins; and during risk-taking after loss, amygdala and hippocampal activation exhibited greater modulation by pump number than after a cash-out event. Striatal D2/D3 BPND was positively related to the modulation of ventral striatal activation when participants decided to cash out and negatively to the number of pumps in the subsequent trial; but negatively related to the modulation of prefrontal cortical activation by pump number when participants took risk, and to overall earnings. These findings provide in vivo evidence for a potential mechanism by which dopaminergic neurotransmission may modulate risk-taking behavior through an interactive system of frontal and striatal activity.
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Affiliation(s)
- Milky Kohno
- Department of Psychiatry and Biobehavioral Sciences Neuroscience Interdepartmental Program
| | | | - Angelica M Morales
- Department of Psychiatry and Biobehavioral Sciences Neuroscience Interdepartmental Program
| | - Chelsea L Robertson
- Department of Molecular and Medical Pharmacology Veterans Administration of Greater Los Angeles Healthcare System
| | - Kenji Ishibashi
- Department of Psychiatry and Biobehavioral Sciences Veterans Administration of Greater Los Angeles Healthcare System
| | - Andrew T Morgan
- Department of Psychiatry and Biobehavioral Sciences Veterans Administration of Greater Los Angeles Healthcare System
| | - Mark A Mandelkern
- Veterans Administration of Greater Los Angeles Healthcare System Department of Physics, University of California Irvine, Irvine, CA, USA
| | - Edythe D London
- Department of Psychiatry and Biobehavioral Sciences Neuroscience Interdepartmental Program Department of Molecular and Medical Pharmacology Brain Research Institute, University of California Los Angeles University of California Los Angeles Semel Institute, Los Angeles, CA 90024, USA and Veterans Administration of Greater Los Angeles Healthcare System
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26
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Abstract
Methamphetamine (MA) is one of the most commonly abused illicit substances worldwide. Among other problems, abuse of the drug has been associated with reduced cognitive function across several domains. However, much of the literature has not attempted to differentiate cognitive difficulties caused by MA abuse from preexisting cognitive difficulties that are likely caused by other factors. Here, we address this question, evaluating evidence for a priori hypotheses pertaining to six lines of research: (a) animal studies; (b) cross-sectional human studies; (c) a twin study; (d) studies of changes in cognition with abstinence from MA; (e) studies of changes in brain structure and function with abstinence from MA; and (f) studies of the relationship between the severity of MA abuse and the extent of cognitive deficits observed. Overall the findings were mixed, with some support for a causal relationship between MA abuse and cognitive decline, and other findings suggesting that there is no relationship. The preponderance of the data, however, does support the possibility that MA abuse causes cognitive decline, of unknown duration, in at least some users of the drug. When averaged across individuals, this decline is likely to be mild in early-to-middle adulthood. However, moderator variables are likely to contribute to the presence and/or severity of cognitive decline exhibited by a given individual.
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Affiliation(s)
- Andy C Dean
- Department of Psychiatry and Biobehavioral Sciences and Semel Institute, David Geffen School of Medicine, University of California, Los Angeles, CA 90095-1759, USA.
| | - Stephanie M Groman
- Department of Psychiatry and Biobehavioral Sciences and Semel Institute, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Angelica M Morales
- Department of Psychiatry and Biobehavioral Sciences and Semel Institute, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Edythe D London
- Department of Psychiatry and Biobehavioral Sciences and Semel Institute, David Geffen School of Medicine, University of California, Los Angeles, CA, USA,Department of Molecular and Medical Pharmacology, and the Brain Research Institute, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
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27
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Morales AM, Charlez L, Remón L, Sanz P, Aspiroz C. [Cutaneous alternariosis in a heart transplant recipient]. Actas Dermosifiliogr 2010; 101:370-372. [PMID: 20487700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023] Open
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28
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Baca V, Catalán T, Villasís-Keever M, Ramón G, Morales AM, Rodríguez-Leyva F. Effect of low-dose cyclosporine A in the treatment of refractory proteinuria in childhood-onset lupus nephritis. Lupus 2007; 15:490-5. [PMID: 16942000 DOI: 10.1191/0961203306lu2312oa] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We performed a prospective study to evaluate the efficacy and safety of low-dose cyclosporine A (CSA) treatment in paediatric lupus nephritis refractory to conventional therapy. Seven children with biopsy-proven Class III-IV lupus nephritis were treated with CSA (2-4 mg/kg/day) combined with low-dose prednisone for one year. All patients had failed to achieve sustained proteinuria remission with corticosteroids and cytotoxic drugs. Proteinuria decreased from median value of 2.5 g/24 hours (range, 1.2-4.9) to 0.14 g/24 hours (range, 0.0-0.84) after treatment (P = 0.018). Median values of creatinine clearance and serum creatinine did not change significantly. Median systemic lupus erythematosus disease activity index score decreased from 12 (range, 6-16) to 4 (range, 0-8) at end of treatment (P = 0.027). However, two patients experienced flares of extrarrenal manifestations and complement levels did not improve. Moreover, most patients relapsed with proteinuria within a few months of stopping CSA therapy. Side effects were not significant. In conclusion, low-dose of CSA combined with steroids appears to be useful to reduce proteinuria in paediatric proliferative lupus nephritis refractory to steroids and cytotoxic drugs; however, relapses are common after CSA discontinuation. Further studies are needed to define the precise role of CSA in paediatric lupus nephritis.
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Affiliation(s)
- V Baca
- Department of Rheumatology, Hospital de Pediatría Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social.
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29
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Udelson D, L'Esperance J, Morales AM, Patel R, Goldstein I. The mechanics of corporal veno-occlusion in penile erection: a theory on the effect of stretch-associated luminal constrictability on outflow resistance. Int J Impot Res 2000; 12:315-27. [PMID: 11416835 DOI: 10.1038/sj.ijir.3900628] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/1999] [Revised: 04/19/2000] [Accepted: 10/03/2000] [Indexed: 11/09/2022]
Abstract
In order to further our understanding of the physiology of corporal veno-occlusion, we developed a theory of a possible contribution to corporal venous outflow resistance which occurs as the result of venule stretching with resultant luminal narrowing when penile volume increases during the erection process. We stretched non-biological tubes and rabbit abdominal vena cava segments, performed flow-based and volume-based experiments to calculate the magnitude of N, the newly defined 'stretch-associated luminal constrictability' factor. We solved for (R(s)/R(u)), the ratio of the venule fluid resistance in the stretched state (R(s)) to the unstretched state (R(u)), to quantify the projected increases in fluid resistance as well as Q.R(u) where Q is the subtunical venule flow rate. For a given tube, N was found to be essentially constant for different amounts of stretch. A theory was formulated which predicted R(s) and Q as a function of N, DeltaP (intracavernosal pressure increase); V(E)/V(F) (tunical distensibility); X (cavernosal expandability) and R(u). Based on the magnitude of N=2, this theory predicts that patients with the highest values of both V(E)/V(F) and X would have maximal R(s) values, approaching infinity (complete occlusion) at a low DeltaP near 5 mmHg. In contrast, patients with low values of both V(E)/V(F) (eg Peyronie's disease) and X (eg corporal fibrosis), would be predicted to have minimal R(s) values. For example, a hypothetical patient with the lowest values of V(E)/V(F) and X would yield R(s) values only approaching 7.9 times that of unstretched values at a DeltaP increase of 90 mmHg. We concluded to that stretch-associated venule resistance may occur as a result of decreased sub-tunical venule diameter and increased sub-tunical venule length. In individual patients, stretch-associated venule resistance may either dominate or be a minor component of the overall mechanism of corporal veno-occlusion.
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Affiliation(s)
- D Udelson
- Department of Urology, Boston University School of Medicine, MA 02118, USA
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30
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Abstract
A method combining laser ablation cluster formation and vapor-liquid-solid (VLS) growth was developed for the synthesis of semiconductor nanowires. In this process, laser ablation was used to prepare nanometer-diameter catalyst clusters that define the size of wires produced by VLS growth. This approach was used to prepare bulk quantities of uniform single-crystal silicon and germanium nanowires with diameters of 6 to 20 and 3 to 9 nanometers, respectively, and lengths ranging from 1 to 30 micrometers. Studies carried out with different conditions and catalyst materials confirmed the central details of the growth mechanism and suggest that well-established phase diagrams can be used to predict rationally catalyst materials and growth conditions for the preparation of nanowires.
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Affiliation(s)
- AM Morales
- A. M. Morales, Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA. C. M. Lieber, Department of Chemistry and Chemical Biology, and Division of Engineering and Applied Sciences, Harvard University, Cambridg
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Iznaga Escobar N, Morales AM, Ducongé J, Torres IC, Fernández E, Gómez JA. Pharmacokinetics, biodistribution and dosimetry of 99mTc-labeled anti-human epidermal growth factor receptor humanized monoclonal antibody R3 in rats. Nucl Med Biol 1998; 25:17-23. [PMID: 9466357 DOI: 10.1016/s0969-8051(97)00139-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The pharmacokinetics, biodistribution and dosimetry of 99mTc-labeled anti-human epidermal growth factor receptor (anti-hEGF-r) humanized monoclonal antibody (MAb) R3 was investigated following intravenous injection in normal Wistar rats. Serum disappearance curves were best fit by a two-compartment model having a mean distribution half-life (t 1/2alpha) of 0.250 h and a mean elimination (t 1/2beta) of 13.89 h. Among the various organs, a little accumulation of the radiolabeled antibody was found only in kidneys. Biodistribution and dosimetry studies in humans were performed by extrapolation of the animal data to humans. Absorbed dose to normal organs and the remainder of the whole body were estimated using the medical internal radiation dose formula, and dose contributions from radioactivity in transit through the gastrointestinal tract were estimated using a compartment model. Extrapolated values of radiation absorbed dose to normal organs in rads per millicurie administered were whole body, 0.0085; lower large intestine wall, 0.0898; small intestine, 0.0530; upper large intestine wall, 0.0731; and kidneys, 0.0455. The effective dose equivalent predicted was 0.0162 rem/mCi and the effective dose was found to be 0.015 rem/mCi. On the basis of the pharmacokinetics, biodistribution and internal radiation dosimetry information obtained in this study, a diagnostic phase I clinical trial with 99mTc-labeled humanized MAb R3 conjugate in patients should be supported.
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Aguilar A, Mendoza L, Morales AM, García-López E. Disconnect systems in children undergoing continuous ambulatory peritoneal dialysis. Transplant Proc 1996; 28:3388. [PMID: 8962322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- A Aguilar
- Hospital de Pediatría Centro Médico Nacional, Siglo XXI, I.M.S.S., México City, Mexico
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Morales AM, Osuna LA, Javier RC, Suárez FN, Aldana IO. [Beta-adrenergic agents in asthma]. Rev Alerg Mex 1996; 43:2-4. [PMID: 8901032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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Calandre EP, Perez de la Cruz AJ, Morales AM, Alférez NP, Moreno E, Mata GV. Monitoring aminophylline therapy using Jusko's dosage guidelines. Intensive Care Med 1983; 9:79-81. [PMID: 6853832 DOI: 10.1007/bf01699261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Treatment with aminophylline, according to the nomogram published by Jusko and coworkers, was monitored in 13 patients suffering from acute exacerbations of COPD. After 24 h of therapy, the clinical state, the pO2 and the pCO2 values were markedly improved. Theophylline plasma concentrations were maintained within the therapeutic range. A slight but noticeable increase of drug serum levels during therapy could be related to changes in the arterial pH; the implications of this finding are discussed.
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Rona E, Morales AM, Torres P. [Change in sex role in children]. Rev Chil Pediatr 1982; 53:133-9. [PMID: 7178561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Williams ED, Morales AM, Horn RC. Thyroid carcinoma and Cushing's syndrome. A report of two cases with a review of the common features of the "non-endocrine" tumours associated with Cushing's syndrome. J Clin Pathol 1968; 21:129-35. [PMID: 4301476 PMCID: PMC473704 DOI: 10.1136/jcp.21.2.129] [Citation(s) in RCA: 63] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Two cases of thyroid carcinoma and Cushing's syndrome are reported. Nine other previously published cases of this association are reviewed: in one the thyroid tumour was described as medullary, in two as papillary, and in the other six as anaplastic, undifferentiated, atypical, or solid carcinoma. Both of our own cases were medullary carcinomas of the thyroid, and on reviewing the histology of five of the other cases all proved to be medullary carcinoma with identifiable amyloid in the stroma. A consideration of the temporal relationships of the development of the carcinoma and of Cushing's syndrome suggested that in the two cases with papillary carcinoma these conditions could have been unrelated, but that in eight of the nine cases with medullary carcinoma there was evidence that thyroid carcinoma was present at the time of diagnosis of Cushing's syndrome. The other main groups of the so-called ;non-endocrine' tumours associated with Cushing's syndrome are briefly reviewed, and evidence that a surprising number of these cases are related to carcinoid tumours is put forward. Medullary carcinoma of the thyroid is also probably related to this group of tumours. It is suggested that the great majority of the tumours associated with Cushing's syndrome are derived from cells of foregut origin which are endocrine in nature. In neoplasms derived from these cells the polypeptide hormone may well be imperfectly formed, and possess an amino-acid sequence in common with ACTH or other biologically active polypeptides.
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