160 results on '"Momenan, R"'
Search Results
2. Methylomic profiling and replication implicates deregulation of PCSK9 in alcohol use disorder
- Author
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Lohoff, F W, Sorcher, J L, Rosen, A D, Mauro, K L, Fanelli, R R, Momenan, R, Hodgkinson, C A, Vendruscolo, L F, Koob, G F, Schwandt, M, George, D T, Jones, I S, Holmes, A, Zhou, Z, Xu, M-J, Gao, B, Sun, H, Phillips, M J, Muench, C, and Kaminsky, Z A
- Published
- 2018
- Full Text
- View/download PDF
3. Predicting alcohol dependence from multi-site brain structural measures
- Author
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Hahn, S., Mackey, S., Cousijn, J., Foxe, J.J., Hester, R., Hutchison, K.E., Korucuoglu, O., London, E.D., Lorenzetti, V., Luijten, M., Momenan, R., Orr, C., Paulus, M.P., Schmaal, L., Sinha, R., Sjoerds, Z., Stein, D.J., Stein, E.A., Holst, R.J. van, Veltman, D.J., Wiers, R.W.H.J., Yucel, M., Thompson, P.M., Conrod, P., Allgaier, N., Garavan, H., Hahn, S., Mackey, S., Cousijn, J., Foxe, J.J., Hester, R., Hutchison, K.E., Korucuoglu, O., London, E.D., Lorenzetti, V., Luijten, M., Momenan, R., Orr, C., Paulus, M.P., Schmaal, L., Sinha, R., Sjoerds, Z., Stein, D.J., Stein, E.A., Holst, R.J. van, Veltman, D.J., Wiers, R.W.H.J., Yucel, M., Thompson, P.M., Conrod, P., Allgaier, N., and Garavan, H.
- Abstract
Contains fulltext : 226131.pdf (publisher's version ) (Open Access), To identify neuroimaging biomarkers of alcohol dependence (AD) from structural magnetic resonance imaging, it may be useful to develop classification models that are explicitly generalizable to unseen sites and populations. This problem was explored in a mega‐analysis of previously published datasets from 2,034 AD and comparison participants spanning 27 sites curated by the ENIGMA Addiction Working Group. Data were grouped into a training set used for internal validation including 1,652 participants (692 AD, 24 sites), and a test set used for external validation with 382 participants (146 AD, 3 sites). An exploratory data analysis was first conducted, followed by an evolutionary search based feature selection to site generalizable and high performing subsets of brain measurements. Exploratory data analysis revealed that inclusion of case‐ and control‐only sites led to the inadvertent learning of site‐effects. Cross validation methods that do not properly account for site can drastically overestimate results. Evolutionary‐based feature selection leveraging leave‐one‐site‐out cross‐validation, to combat unintentional learning, identified cortical thickness in the left superior frontal gyrus and right lateral orbitofrontal cortex, cortical surface area in the right transverse temporal gyrus, and left putamen volume as final features. Ridge regression restricted to these features yielded a test‐set area under the receiver operating characteristic curve of 0.768. These findings evaluate strategies for handling multi‐site data with varied underlying class distributions and identify potential biomarkers for individuals with current AD.
- Published
- 2022
4. Brain structural covariance network differences in adults with alcohol dependence and heavy-drinking adolescents
- Author
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Ottino-Gonzalez, J, Garavan, H, Albaugh, MD, Cao, Z, Cupertino, RB, Schwab, N, Spechler, PA, Allen, N, Artiges, E, Banaschewski, T, Bokde, ALW, Quinlan, EB, Bruehl, R, Orr, C, Cousijn, J, Desrivieres, S, Flor, H, Foxe, JJ, Froehner, JH, Goudriaan, AE, Gowland, P, Grigis, A, Heinz, A, Hester, R, Hutchison, K, Li, C-SR, London, ED, Lorenzetti, V, Luijten, M, Nees, F, Martin-Santos, R, Martinot, J-L, Millenet, S, Momenan, R, Martinot, M-LP, Orfanos, DP, Paulus, MP, Poustka, L, Schmaal, L, Schumann, G, Sinha, R, Smolka, MN, Solowij, N, Stein, DJ, Stein, EA, Uhlmann, A, Holst, RJ, Veltman, DJ, Walter, H, Whelan, R, Wiers, RW, Yucel, M, Zhang, S, Jahanshad, N, Thompson, PM, Conrod, P, Mackey, S, Ottino-Gonzalez, J, Garavan, H, Albaugh, MD, Cao, Z, Cupertino, RB, Schwab, N, Spechler, PA, Allen, N, Artiges, E, Banaschewski, T, Bokde, ALW, Quinlan, EB, Bruehl, R, Orr, C, Cousijn, J, Desrivieres, S, Flor, H, Foxe, JJ, Froehner, JH, Goudriaan, AE, Gowland, P, Grigis, A, Heinz, A, Hester, R, Hutchison, K, Li, C-SR, London, ED, Lorenzetti, V, Luijten, M, Nees, F, Martin-Santos, R, Martinot, J-L, Millenet, S, Momenan, R, Martinot, M-LP, Orfanos, DP, Paulus, MP, Poustka, L, Schmaal, L, Schumann, G, Sinha, R, Smolka, MN, Solowij, N, Stein, DJ, Stein, EA, Uhlmann, A, Holst, RJ, Veltman, DJ, Walter, H, Whelan, R, Wiers, RW, Yucel, M, Zhang, S, Jahanshad, N, Thompson, PM, Conrod, P, and Mackey, S
- Abstract
BACKGROUND AND AIMS: Graph theoretic analysis of structural covariance networks (SCN) provides an assessment of brain organization that has not yet been applied to alcohol dependence (AD). We estimated whether SCN differences are present in adults with AD and heavy-drinking adolescents at age 19 and age 14, prior to substantial exposure to alcohol. DESIGN: Cross-sectional sample of adults and a cohort of adolescents. Correlation matrices for cortical thicknesses across 68 regions were summarized with graph theoretic metrics. SETTING AND PARTICIPANTS: A total of 745 adults with AD and 979 non-dependent controls from 24 sites curated by the Enhancing NeuroImaging Genetics through Meta Analysis (ENIGMA)-Addiction consortium, and 297 hazardous drinking adolescents and 594 controls at ages 19 and 14 from the IMAGEN study, all from Europe. MEASUREMENTS: Metrics of network segregation (modularity, clustering coefficient and local efficiency) and integration (average shortest path length and global efficiency). FINDINGS: The younger AD adults had lower network segregation and higher integration relative to non-dependent controls. Compared with controls, the hazardous drinkers at age 19 showed lower modularity [area-under-the-curve (AUC) difference = -0.0142, 95% confidence interval (CI) = -0.1333, 0.0092; P-value = 0.017], clustering coefficient (AUC difference = -0.0164, 95% CI = -0.1456, 0.0043; P-value = 0.008) and local efficiency (AUC difference = -0.0141, 95% CI = -0.0097, 0.0034; P-value = 0.010), as well as lower average shortest path length (AUC difference = -0.0405, 95% CI = -0.0392, 0.0096; P-value = 0.021) and higher global efficiency (AUC difference = 0.0044, 95% CI = -0.0011, 0.0043; P-value = 0.023). The same pattern was present at age 14 with lower clustering coefficient (AUC difference = -0.0131, 95% CI = -0.1304, 0.0033; P-value = 0.024), lower average shortest path length (AUC difference = -0.0362, 95% CI = -0.0334, 0.0118; P-value = 0.019) and higher glo
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- 2022
5. How do substance use disorders compare to other psychiatric conditions on structural brain abnormalities?
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Navarri, X., Afzali, M.H., Lavoie, J., Sinha, R., Stein, D.J., Momenan, R., Veltman, D.J., Korucuoglu, O., Sjoerds, Z.. Holst, R.J. van, Hester, R., Orr, C., Cousijn, J., Yucel, M., Lorenzetti, V., Wiers, R., Jahanshad, N., Glahn, D.C., Thompson, P.M., Mackey, S., and Conrod, P.J.
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- 2022
6. Gender-related neuroanatomical differences in alcohol dependence: findings from the ENIGMA Addiction Working Group
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Rossetti, MG, Patalay, P, Mackey, S, Allen, NB, Batalla, A, Bellani, M, Chye, Y, Cousijn, J, Goudriaan, AE, Hester, R, Hutchison, K, Li, C-SR, Martin-Santos, R, Momenan, R, Sinha, R, Schmaal, L, Sjoerds, Z, Solowij, N, Suo, C, van Holst, RJ, Veltman, DJ, Yucel, M, Thompson, PM, Conrod, P, Garavan, H, Brambilla, P, Lorenzetti, V, Rossetti, MG, Patalay, P, Mackey, S, Allen, NB, Batalla, A, Bellani, M, Chye, Y, Cousijn, J, Goudriaan, AE, Hester, R, Hutchison, K, Li, C-SR, Martin-Santos, R, Momenan, R, Sinha, R, Schmaal, L, Sjoerds, Z, Solowij, N, Suo, C, van Holst, RJ, Veltman, DJ, Yucel, M, Thompson, PM, Conrod, P, Garavan, H, Brambilla, P, and Lorenzetti, V
- Abstract
Gender-related differences in the susceptibility, progression and clinical outcomes of alcohol dependence are well-known. However, the neurobiological substrates underlying such differences remain unclear. Therefore, this study aimed to investigate gender differences in the neuroanatomy (i.e. regional brain volumes) of alcohol dependence. We examined the volume of a priori regions of interest (i.e., orbitofrontal cortex, hippocampus, amygdala, nucleus accumbens, caudate, putamen, pallidum, thalamus, corpus callosum, cerebellum) and global brain measures (i.e., total grey matter (GM), total white matter (WM) and cerebrospinal fluid). Volumes were compared between 660 people with alcohol dependence (228 women) and 326 controls (99 women) recruited from the ENIGMA Addiction Working Group, accounting for intracranial volume, age and education years. Compared to controls, individuals with alcohol dependence on average had (3-9%) smaller volumes of the hippocampus (bilateral), putamen (left), pallidum (left), thalamus (right), corpus callosum, total GM and WM, and cerebellar GM (bilateral), the latter more prominently in women (right). Alcohol-dependent men showed smaller amygdala volume than control men, but this effect was unclear among women. In people with alcohol dependence, more monthly standard drinks predicted smaller amygdala and larger cerebellum GM volumes. The neuroanatomical differences associated with alcohol dependence emerged as gross and widespread, while those associated with a specific gender may be confined to selected brain regions. These findings warrant future neuroscience research to account for gender differences in alcohol dependence to further understand the neurobiological effects of alcohol dependence.
- Published
- 2021
7. Sex differences in the neuroanatomy of alcohol dependence: hippocampus and amygdala subregions in a sample of 966 people from the ENIGMA Addiction Working Group
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Grace, S, Rossetti, MG, Allen, N, Batalla, A, Bellani, M, Brambilla, P, Chye, Y, Cousijn, J, Goudriaan, AE, Hester, R, Hutchison, K, Labuschagne, I, Momenan, R, Martin-Santos, R, Rendell, P, Solowij, N, Sinha, R, Li, C-SR, Schmaal, L, Sjoerds, Z, Suo, C, Terrett, G, van Holst, RJ, Veltman, DJ, Yucel, M, Thompson, P, Conrod, P, Mackey, S, Garavan, H, Lorenzetti, V, Grace, S, Rossetti, MG, Allen, N, Batalla, A, Bellani, M, Brambilla, P, Chye, Y, Cousijn, J, Goudriaan, AE, Hester, R, Hutchison, K, Labuschagne, I, Momenan, R, Martin-Santos, R, Rendell, P, Solowij, N, Sinha, R, Li, C-SR, Schmaal, L, Sjoerds, Z, Suo, C, Terrett, G, van Holst, RJ, Veltman, DJ, Yucel, M, Thompson, P, Conrod, P, Mackey, S, Garavan, H, and Lorenzetti, V
- Abstract
Males and females with alcohol dependence have distinct mental health and cognitive problems. Animal models of addiction postulate that the underlying neurobiological mechanisms are partially distinct, but there is little evidence of sex differences in humans with alcohol dependence as most neuroimaging studies have been conducted in males. We examined hippocampal and amygdala subregions in a large sample of 966 people from the ENIGMA Addiction Working Group. This comprised 643 people with alcohol dependence (225 females), and a comparison group of 323 people without alcohol dependence (98 females). Males with alcohol dependence had smaller volumes of the total amygdala and its basolateral nucleus than male controls, that exacerbated with alcohol dose. Alcohol dependence was also associated with smaller volumes of the hippocampus and its CA1 and subiculum subfield volumes in both males and females. In summary, hippocampal and amygdalar subregions may be sensitive to both shared and distinct mechanisms in alcohol-dependent males and females.
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- 2021
8. Mapping cortical and subcortical asymmetries in substance dependence: Findings from the ENIGMA Addiction Working Group
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Cao, Z, Ottino-Gonzalez, J, Cupertino, RB, Schwab, N, Hoke, C, Catherine, O, Cousijn, J, Dagher, A, Foxe, JJ, Goudriaan, AE, Hester, R, Hutchison, K, Li, C-SR, London, ED, Lorenzetti, V, Luijten, M, Martin-Santos, R, Momenan, R, Paulus, MP, Schmaal, L, Sinha, R, Sjoerds, Z, Solowij, N, Stein, DJ, Stein, EA, Uhlmann, A, van Holst, RJ, Veltman, DJ, Wiers, RW, Yucel, M, Zhang, S, Jahanshad, N, Thompson, PM, Conrod, P, Mackey, S, Garavan, H, Cao, Z, Ottino-Gonzalez, J, Cupertino, RB, Schwab, N, Hoke, C, Catherine, O, Cousijn, J, Dagher, A, Foxe, JJ, Goudriaan, AE, Hester, R, Hutchison, K, Li, C-SR, London, ED, Lorenzetti, V, Luijten, M, Martin-Santos, R, Momenan, R, Paulus, MP, Schmaal, L, Sinha, R, Sjoerds, Z, Solowij, N, Stein, DJ, Stein, EA, Uhlmann, A, van Holst, RJ, Veltman, DJ, Wiers, RW, Yucel, M, Zhang, S, Jahanshad, N, Thompson, PM, Conrod, P, Mackey, S, and Garavan, H
- Abstract
Brain asymmetry reflects left-right hemispheric differentiation, which is a quantitative brain phenotype that develops with age and can vary with psychiatric diagnoses. Previous studies have shown that substance dependence is associated with altered brain structure and function. However, it is unknown whether structural brain asymmetries are different in individuals with substance dependence compared with nondependent participants. Here, a mega-analysis was performed using a collection of 22 structural brain MRI datasets from the ENIGMA Addiction Working Group. Structural asymmetries of cortical and subcortical regions were compared between individuals who were dependent on alcohol, nicotine, cocaine, methamphetamine, or cannabis (n = 1,796) and nondependent participants (n = 996). Substance-general and substance-specific effects on structural asymmetry were examined using separate models. We found that substance dependence was significantly associated with differences in volume asymmetry of the nucleus accumbens (NAcc; less rightward; Cohen's d = 0.15). This effect was driven by differences from controls in individuals with alcohol dependence (less rightward; Cohen's d = 0.10) and nicotine dependence (less rightward; Cohen's d = 0.11). These findings suggest that disrupted structural asymmetry in the NAcc may be a characteristic of substance dependence.
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- 2021
9. How do substance use disorders compare to other psychiatric conditions on structural brain abnormalities? A cross-disorder meta-analytic comparison using theENIGMAconsortium findings
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Navarri, X, Afzali, MH, Lavoie, J, Sinha, R, Stein, DJ, Momenan, R, Veltman, DJ, Korucuoglu, O, Sjoerds, Z, van Holst, RJ, Hester, R, Orr, C, Cousijn, J, Yucel, M, Lorenzetti, V, Wiers, R, Jahanshad, N, Glahn, DC, Thompson, PM, Mackey, S, Conrod, PJ, Navarri, X, Afzali, MH, Lavoie, J, Sinha, R, Stein, DJ, Momenan, R, Veltman, DJ, Korucuoglu, O, Sjoerds, Z, van Holst, RJ, Hester, R, Orr, C, Cousijn, J, Yucel, M, Lorenzetti, V, Wiers, R, Jahanshad, N, Glahn, DC, Thompson, PM, Mackey, S, and Conrod, PJ
- Abstract
Alcohol use disorder (AUD) and cannabis use disorder (CUD) are associated with brain alterations particularly involving fronto-cerebellar and meso-cortico-limbic circuitry. However, such abnormalities have additionally been reported in other psychiatric conditions, and until recently there has been few large-scale investigations to compare such findings. The current study uses the Enhancing Neuroimaging Genetics through Meta-Analysis (ENIGMA) consortium method of standardising structural brain measures to quantify case-control differences and to compare brain-correlates of substance use disorders with those published in relation to other psychiatric disorders. Using the ENIGMA protocols, we report effect sizes derived from a meta-analysis of alcohol (seven studies, N = 798, 54% are cases) and cannabis (seven studies, N = 447, 45% are cases) dependent cases and age- and sex-matched controls. We conduct linear analyses using harmonised methods to process and parcellate brain data identical to those reported in the literature for ENIGMA case-control studies of major depression disorder (MDD), schizophrenia (SCZ) and bipolar disorder so that effect sizes are optimally comparable across disorders. R elationships between substance use disorder diagnosis and subcortical grey matter volumes and cortical thickness were assessed with intracranial volume, age and sex as co-variates . After correcting for multiple comparisons, AUD case-control meta-analysis of subcortical regions indicated significant differences in the thalamus, hippocampus, amygdala and accumbens, with effect sizes (0.23) generally equivalent to, or larger than |0.23| those previously reported for other psychiatric disorders (except for the pallidum and putamen). On measures of cortical thickness, AUD was associated with significant differences bilaterally in the fusiform gyrus, inferior temporal gyrus, temporal pole, superior frontal gyrus, and rostral and caudal anterior cingulate gyri. Meta-analysis of CUD
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- 2020
10. Predicting alcohol dependence frommulti-sitebrain structural measures
- Author
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Hahn, S, Mackey, S, Cousijn, J, Foxe, JJ, Heinz, A, Hester, R, Hutchinson, K, Kiefer, F, Korucuoglu, O, Lett, T, Li, C-SR, London, E, Lorenzetti, V, Maartje, L, Momenan, R, Orr, C, Paulus, M, Schmaal, L, Sinha, R, Sjoerds, Z, Stein, DJ, Stein, E, van Holst, RJ, Veltman, D, Walter, H, Wiers, RW, Yucel, M, Thompson, PM, Conrod, P, Allgaier, N, Garavan, H, Hahn, S, Mackey, S, Cousijn, J, Foxe, JJ, Heinz, A, Hester, R, Hutchinson, K, Kiefer, F, Korucuoglu, O, Lett, T, Li, C-SR, London, E, Lorenzetti, V, Maartje, L, Momenan, R, Orr, C, Paulus, M, Schmaal, L, Sinha, R, Sjoerds, Z, Stein, DJ, Stein, E, van Holst, RJ, Veltman, D, Walter, H, Wiers, RW, Yucel, M, Thompson, PM, Conrod, P, Allgaier, N, and Garavan, H
- Abstract
To identify neuroimaging biomarkers of alcohol dependence (AD) from structural magnetic resonance imaging, it may be useful to develop classification models that are explicitly generalizable to unseen sites and populations. This problem was explored in a mega-analysis of previously published datasets from 2,034 AD and comparison participants spanning 27 sites curated by the ENIGMA Addiction Working Group. Data were grouped into a training set used for internal validation including 1,652 participants (692 AD, 24 sites), and a test set used for external validation with 382 participants (146 AD, 3 sites). An exploratory data analysis was first conducted, followed by an evolutionary search based feature selection to site generalizable and high performing subsets of brain measurements. Exploratory data analysis revealed that inclusion of case- and control-only sites led to the inadvertent learning of site-effects. Cross validation methods that do not properly account for site can drastically overestimate results. Evolutionary-based feature selection leveraging leave-one-site-out cross-validation, to combat unintentional learning, identified cortical thickness in the left superior frontal gyrus and right lateral orbitofrontal cortex, cortical surface area in the right transverse temporal gyrus, and left putamen volume as final features. Ridge regression restricted to these features yielded a test-set area under the receiver operating characteristic curve of 0.768. These findings evaluate strategies for handling multi-site data with varied underlying class distributions and identify potential biomarkers for individuals with current AD.
- Published
- 2020
11. ROLE OF THE MU-OPIOID RECEPTOR IN THE RESPONSE TO ALCOHOL: PET AND FMRI INVESTIGATIONS: 253
- Author
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Ramchandani, V. A., Schwandt, M. L., Umhau, J., Zhang, L., Momenan, R., Hommer, D., Heilig, M., and George, D. T.
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- 2012
12. USING FMRI TO EXPLORE THE NEURAL CORRELATES OF REWARD AND IMPULSIVITY IN ADOLESCENTS: 137
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Hommer, D. W., Smith, A. R., Momenan, R., and Bjork, J.
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- 2012
13. Relationship Between Cerebral Glutamate and the Brain Volume in Alcoholic Subjects
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Momenan, R, Kerich, M, Van, K, Zhang, Y, Hommer, D, and Heilig, M
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- 2009
- Full Text
- View/download PDF
14. MODULATION OF CENTRAL GLUTAMATE BY ACAMPROSATE IN ALCOHOL DEPENDENT SUBJECTS ENTERING ABSTINENCE: A MAGNETIC RESONANCE SPECTROSCOPY (MRS) STUDY: 120
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Heilig, M., Momenan, R., Umhau, J., and George, T.
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- 2009
- Full Text
- View/download PDF
15. GENDER AND BRAIN SHRINKAGE IN ALCOHOLISM: 066
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Hommer, D. W. and Momenan, R.
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- 2007
16. INFLUENCE OF AGE AND SEX ON ALCOHOL ELIMINATION RATES AND SUBJECTIVE EFFECTS OF ALCOHOL: 169
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Ramchandani, V. A., Kumar, S. R., Saxena, N. A., Spero, D. E., Momenan, R., and Hommer, D.
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- 2007
17. Mega-analysis of gray matter volume in substance dependence: General and substance-specific regional effects
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Mackey, S., Allgaier, N., Chaarani, B., Spechler, P., Orr, C., Bunn, J., Allen, N.B., Alia-Klein, N., Batalla, A., Blaine, S., Brooks, S., Caparelli, E., Chye, Y.Y., Cousijn, J., Dagher, A., Desrivieres, S., Feldstein-Ewing, S., Foxe, J.J., Goldstein, R.Z., Goudriaan, A.E., Heitzeg, M.M., Hester, R., Hutchison, K.E., Korucuoglu, O., Li, C.S.R., London, E.D., Lorenzetti, V., Luijten, M., Martin-Santos, R., May, A., Momenan, R., Morales, A.M., Paulus, M.P., Pearlson, G., Rousseau, M.E., Salmeron, B.J., Schluter, R., Schmaal, L., Schumann, G., Sjoerds, Z., Stein, D.J., Stein, E.A., Sinha, R., Solowij, N., Tapert, S., Uhlmann, A., Veltman, D.J., Holst, R.J. van, Whittle, S., Wright, M.J., Yücel, M., Zhang, S., Yurgelun-Todd, D., Hibar, D.P., Jahanshad, N., Evans, A.C., Thompson, P.M., Glahn, D.C., Conrod, P., Garavan, H., Mackey, S., Allgaier, N., Chaarani, B., Spechler, P., Orr, C., Bunn, J., Allen, N.B., Alia-Klein, N., Batalla, A., Blaine, S., Brooks, S., Caparelli, E., Chye, Y.Y., Cousijn, J., Dagher, A., Desrivieres, S., Feldstein-Ewing, S., Foxe, J.J., Goldstein, R.Z., Goudriaan, A.E., Heitzeg, M.M., Hester, R., Hutchison, K.E., Korucuoglu, O., Li, C.S.R., London, E.D., Lorenzetti, V., Luijten, M., Martin-Santos, R., May, A., Momenan, R., Morales, A.M., Paulus, M.P., Pearlson, G., Rousseau, M.E., Salmeron, B.J., Schluter, R., Schmaal, L., Schumann, G., Sjoerds, Z., Stein, D.J., Stein, E.A., Sinha, R., Solowij, N., Tapert, S., Uhlmann, A., Veltman, D.J., Holst, R.J. van, Whittle, S., Wright, M.J., Yücel, M., Zhang, S., Yurgelun-Todd, D., Hibar, D.P., Jahanshad, N., Evans, A.C., Thompson, P.M., Glahn, D.C., Conrod, P., and Garavan, H.
- Abstract
Contains fulltext : 200963.pdf (publisher's version ) (Closed access), Objective: Although lower brain volume has been routinely observed in individuals with substance dependence compared with nondependent control subjects, the brain regions exhibiting lower volume have not been consistent across studies. In addition, it is not clear whether a common set of regions are involved in substance dependence regardless of the substance used or whether some brain volume effects are substance specific. Resolution of these issues may contribute to the identification of clinically relevant imaging biomarkers. Using pooled data from 14 countries, the authors sought to identify general and substance-specific associations between dependence and regional brain volumes. Method: Brain structure was examined in a mega-analysis of previously published data pooled from 23 laboratories, including 3,240 individuals, 2,140 of whom had substance dependence on one of five substances: alcohol, nicotine, cocaine, methamphetamine, or cannabis. Subcortical volume and cortical thickness in regions defined by FreeSurfer were compared with nondependent control subjects when all sampled substance categories were combined, as well as separately, while controlling for age, sex, imaging site, and total intracranial volume. Because of extensive associations with alcohol dependence, a secondary contrast was also performed for dependence on all substances except alcohol. An optimized split-half strategy was used to assess the reliability of the findings. Results: Lower volume or thickness was observed in many brain regions in individuals with substance dependence. The greatest effects were associated with alcohol use disorder. A set of affected regions related to dependence in general, regardless of the substance, included the insula and the medial orbitofrontal cortex. Furthermore, a support vector machine multivariate classification of regional brain volumes successfully classified individuals with substance dependence on alcohol or nicotine relative to nondependent contr
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- 2019
18. Subcortical surface morphometry in substance dependence: An ENIGMA addiction working group study
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Chye, Y, Mackey, S, Gutman, BA, Ching, CRK, Batalla, A, Blaine, S, Brooks, S, Caparelli, EC, Cousijn, J, Dagher, A, Foxe, JJ, Goudriaan, AE, Hester, R, Hutchison, K, Jahanshad, N, Kaag, AM, Korucuoglu, O, Li, C-SR, London, ED, Lorenzetti, V, Luijten, M, Martin-Santos, R, Meda, SA, Momenan, R, Morales, A, Orr, C, Paulus, MP, Pearlson, G, Reneman, L, Schmaal, L, Sinha, R, Solowij, N, Stein, DJ, Stein, EA, Tang, D, Uhlmann, A, van Holst, R, Veltman, DJ, Verdejo-Garcia, A, Wiers, RW, Yuecel, M, Thompson, PM, Conrod, P, Garavan, H, Chye, Y, Mackey, S, Gutman, BA, Ching, CRK, Batalla, A, Blaine, S, Brooks, S, Caparelli, EC, Cousijn, J, Dagher, A, Foxe, JJ, Goudriaan, AE, Hester, R, Hutchison, K, Jahanshad, N, Kaag, AM, Korucuoglu, O, Li, C-SR, London, ED, Lorenzetti, V, Luijten, M, Martin-Santos, R, Meda, SA, Momenan, R, Morales, A, Orr, C, Paulus, MP, Pearlson, G, Reneman, L, Schmaal, L, Sinha, R, Solowij, N, Stein, DJ, Stein, EA, Tang, D, Uhlmann, A, van Holst, R, Veltman, DJ, Verdejo-Garcia, A, Wiers, RW, Yuecel, M, Thompson, PM, Conrod, P, and Garavan, H
- Abstract
While imaging studies have demonstrated volumetric differences in subcortical structures associated with dependence on various abused substances, findings to date have not been wholly consistent. Moreover, most studies have not compared brain morphology across those dependent on different substances of abuse to identify substance-specific and substance-general dependence effects. By pooling large multinational datasets from 33 imaging sites, this study examined subcortical surface morphology in 1628 nondependent controls and 2277 individuals with dependence on alcohol, nicotine, cocaine, methamphetamine, and/or cannabis. Subcortical structures were defined by FreeSurfer segmentation and converted to a mesh surface to extract two vertex-level metrics-the radial distance (RD) of the structure surface from a medial curve and the log of the Jacobian determinant (JD)-that, respectively, describe local thickness and surface area dilation/contraction. Mega-analyses were performed on measures of RD and JD to test for the main effect of substance dependence, controlling for age, sex, intracranial volume, and imaging site. Widespread differences between dependent users and nondependent controls were found across subcortical structures, driven primarily by users dependent on alcohol. Alcohol dependence was associated with localized lower RD and JD across most structures, with the strongest effects in the hippocampus, thalamus, putamen, and amygdala. Meanwhile, nicotine use was associated with greater RD and JD relative to nonsmokers in multiple regions, with the strongest effects in the bilateral hippocampus and right nucleus accumbens. By demonstrating subcortical morphological differences unique to alcohol and nicotine use, rather than dependence across all substances, results suggest substance-specific relationships with subcortical brain structures.
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- 2019
19. Exogenous ghrelin administration increases alcohol self-administration and modulates brain functional activity in heavy-drinking alcohol-dependent individuals
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Farokhnia, M, primary, Grodin, E N, additional, Lee, M R, additional, Oot, E N, additional, Blackburn, A N, additional, Stangl, B L, additional, Schwandt, M L, additional, Farinelli, L A, additional, Momenan, R, additional, Ramchandani, V A, additional, and Leggio, L, additional
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- 2017
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20. Genetic imaging consortium for addiction medicine: From neuroimaging to genes
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Mackey, S., Kan, K.-J., Chaarani, B., Alia-Klein, N., Batalla, A., Brooks, S., Cousijn, J., Dagher, D., de Ruiter, M., Desrivieres, S., Feldstein Ewing, S.W., Goldstein, R.Z., Goudriaan, A.E., Heitzeg, M.M., Hutchison, K., Li, C.S.R., London, E.D., Lorenzetti, V., Luijten, M., Martin-Santos, R., Morales, A.M., Paulus, M.P., Paus, T., Pearlson, G., Schluter, R., Momenan, R., Schmaal, L., Schumann, G., Sinha, R., Sjoerds, Z., Stein, D.J., Stein, E.A., Solowij, N., Tapert, S., Uhlmann, A., Veltman, D., van Holst, R., Walter, H., Wright, M.J., Yucel, M., Yurgelun-Todd, D., Hibar, D.P., Jahanshad, N., Thompson, P.M., Glahn, D.C., Garavan, H., Conrod, P., Ekhtiari, H., Paulus, M., and Ontwikkelingspsychologie (Psychologie, FMG)
- 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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- 2016
21. Methylomic profiling and replication implicates deregulation of PCSK9 in alcohol use disorder
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Lohoff, F W, primary, Sorcher, J L, additional, Rosen, A D, additional, Mauro, K L, additional, Fanelli, R R, additional, Momenan, R, additional, Hodgkinson, C A, additional, Vendruscolo, L F, additional, Koob, G F, additional, Schwandt, M, additional, George, D T, additional, Jones, I S, additional, Holmes, A, additional, Zhou, Z, additional, Xu, M-J, additional, Gao, B, additional, Sun, H, additional, Phillips, M J, additional, Muench, C, additional, and Kaminsky, Z A, additional
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- 2017
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22. Defining the role of corticotropin releasing factor binding protein in alcohol consumption
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Haass-Koffler, C L, primary, Henry, A T, additional, Melkus, G, additional, Simms, J A, additional, Naemmuddin, M, additional, Nielsen, C K, additional, Lasek, A W, additional, Magill, M, additional, Schwandt, M L, additional, Momenan, R, additional, Hodgkinson, C A, additional, Bartlett, S E, additional, Swift, R M, additional, Bonci, A, additional, and Leggio, L, additional
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- 2016
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23. EFFECTSOF FAAH RS324420 SNP IN CO-MORBID ALCOHOL DEPENDENCE AND POSTTRAUMATIC STRESS DISORDER
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Spagnolo, PRIMAVERA ALESSANDRA, Schwandt, M. L., Momenan, R., Ramchandani, V. A., Heilig, M., and George, D. T.
- Published
- 2014
24. SY15-3THE ROLE OF THE GUT-BRAIN-AXIS IN SUBSTANCE USE DISORDERS: EVIDENCE FROM HUMAN GENETIC STUDIES
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Suchankova, P., primary, Yan,, J., additional, Schwandt, M. L., additional, Stangl, B. L., additional, Caparelli, E. C., additional, Momenan, R., additional, Hodgkinson, C. A., additional, Goldman, D., additional, Heilig, M., additional, Ramchandani, V. A., additional, Nilsson, S., additional, von der Pahlen, B., additional, Santtila, P., additional, Sandnabba, K., additional, Johansson, A., additional, Jern, P., additional, Leggio, L., additional, Engel, J. A., additional, and Jerlhag, E., additional
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- 2015
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25. The glucagon-like peptide-1 receptor as a potential treatment target in alcohol use disorder: evidence from human genetic association studies and a mouse model of alcohol dependence
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Suchankova, P, primary, Yan, J, additional, Schwandt, M L, additional, Stangl, B L, additional, Caparelli, E C, additional, Momenan, R, additional, Jerlhag, E, additional, Engel, J A, additional, Hodgkinson, C A, additional, Egli, M, additional, Lopez, M F, additional, Becker, H C, additional, Goldman, D, additional, Heilig, M, additional, Ramchandani, V A, additional, and Leggio, L, additional
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- 2015
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26. BRAIN GROWTH AND SHRINKAGE.
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Hommer, D W, primary, Bjork, J M, additional, Momenan, R, additional, and Schottenbauer, M, additional
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- 2004
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27. Differential brain activation response to different frequency of electroacupuncture
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Shen, J., primary, Rio, D., additional, Momenan, R., additional, Knutson, B., additional, Rawlings, B., additional, Moon, K., additional, Woltz, L., additional, and Hommer, D., additional
- Published
- 2001
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28. Estimation of Relative mRNA Content by Filter Hybridization to a Polyuridylic Probe
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Koch-Paiz, C.A., primary, Momenan, R., additional, Amundson, S.A., additional, Lamoreaux, E., additional, and Fornace, A.J., additional
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- 2000
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29. Laterality and Volume Difference in the Diencephalic Volume of Head-Injured and Healthy Subjects
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Momenan, R., primary, Andreason, P., additional, Umhau, J., additional, and Hommer, D., additional
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- 1998
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30. Decreased Corpus Callosum Size Among Alcoholic Women
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Hommer, D., primary, Momenan, R., additional, Rawlings, R., additional, Ragan, P., additional, Williams, W., additional, Rio, D., additional, and Eckardt, M., additional
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- 1996
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31. Cingulate and right temporal glucose metabolic rates correlate with impulsive aggression in closed head injury patients
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Andreason, P., primary, Umhau, J., additional, Williams, W., additional, Momenan, R., additional, Kerich, M., additional, Rio, D., additional, Brown, G.L., additional, Hommer, D., additional, and Linnoila, M., additional
- Published
- 1995
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32. Image staining and differential diagnosis of ultrasound scans based on the Mahalanobis distance
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Momenan, R., primary, Wagner, R.F., additional, Garra, B.S., additional, Loew, M.H., additional, and Insana, M.F., additional
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- 1994
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33. Characterization of tissue from ultrasound images.
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Momenan, R., Wagner, R.F., Loew, M.H., Insana, M.F., and Garra, B.S.
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- 1988
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34. Negative association of neuroticism with brain volume ratio in healthy humans
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Knutson, B., Momenan, R., Rawlings, R. R., Fong, G. W., and Hommer, D.
- Published
- 2001
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35. Detection of diffuse and focal hepatic disease from quantitative ultrasound image data: Effect of size of region of interest
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Momenan, R, primary
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- 1989
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36. Application of pattern recognition techniques in ultrasound tissue characterization
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Momenan, R., primary, Loew, M.H., additional, Insana, M.F., additional, Wagner, R.F., additional, and Garra, B.S., additional
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37. Application of pattern recognition techniques in ultrasound tissue characterization.
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Momenan, R., Loew, M.H., Insana, M.F., Wagner, R.F., and Garra, B.S.
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- 1990
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38. Application of pattern recognition techniques in ultrasound tissue characterization.
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Momenan, R., Loew, M.H., Wagner, R.F., Isana, M.F., and Garra, B.S.
- Published
- 1989
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39. Smoking-Related Increases in Alcohol Outcomes and Preliminary Evidence for the Protective Effect of a Functional Nicotine Receptor Gene (CHRNA5) Variant on Alcohol Consumption in Individuals Without Alcohol Use Disorder.
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Venkatesh SK, Stangl BL, Yan J, Quijano Cardé NA, Stein EA, Diazgranados N, Schwandt ML, Sun H, Momenan R, Goldman D, De Biasi M, and Ramchandani VA
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- Humans, Male, Female, Adult, Young Adult, Middle Aged, Ethanol administration & dosage, Ethanol pharmacology, Polymorphism, Single Nucleotide, Nerve Tissue Proteins genetics, Smoking genetics, Self Administration, Genotype, Alcohol Drinking genetics, Receptors, Nicotinic genetics
- Abstract
Background: Alcohol and nicotine interact with the nicotinic acetylcholine receptor system to alter reward-related responses, thereby contributing to the co-use and misuse of these drugs. A missense polymorphism rs16969968 (G>A) in the CHRNA5 gene has shown a strong association with nicotine-related phenotypes. However, less is known about the impact of this variant on alcohol-related phenotypes., Methods: We assessed the main and interactive effect of smoking and rs16969968 polymorphism on alcohol consumption using the Alcohol Use Disorders Identification Test (AUDIT), Timeline Follow Back (TLFB), and Lifetime Drinking History (LDH) in 980 healthy adults without alcohol use disorder. We further examined the effect of the rs16969968 polymorphism on acute alcohol consumption using a free-access i.v. alcohol self-administration (IV-ASA) human laboratory paradigm in a subset of 153 nonsmoking participants. Subjective alcohol responses, alcohol sensitivity, and expectancy measures were compared between genotype groups (GG; AA/AG)., Results: We observed a significant association of smoking with AUDIT, TLFB, and LDH measures across genotype groups, with smokers showing higher scores compared with nonsmokers. Additionally, we found an association between genotype and TLFB-total drinks in the IV-ASA subset, with the GG group showing higher scores than AA/AG group. Relatedly, the alcohol negative expectancy score was significantly lower in the GG group than the AA/AG group., Conclusions: Our findings underscore the association of smoking with alcohol measures. We found preliminary evidence for the protective effect of the functional CHRNA5 polymorphism on alcohol consumption and its association with increased negative alcohol expectancies, which highlights the substantial heterogeneity in alcohol responses., (Published by Oxford University Press on behalf of CINP 2024.)
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- 2024
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40. Parosmia Is Positively Associated With Problematic Drinking, as Is Phantosmia With Depressive Symptoms.
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Agarwal K, Luk JW, Stangl BL, Schwandt ML, Momenan R, Goldman D, Diazgranados N, Kareken DA, Leggio L, Ramchandani VA, and Joseph PV
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- Humans, Male, Female, Adult, Middle Aged, Aged, Prevalence, Young Adult, United States epidemiology, COVID-19 epidemiology, Depression epidemiology, Alcoholism epidemiology, Olfaction Disorders epidemiology, Olfaction Disorders etiology
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Objectives: Alcohol use disorder (AUD) is a global health problem with significant negative consequences, including preventable deaths. Although olfactory dysfunction is associated with chronic alcohol drinking, the relationship among specific types of olfactory deficits, depressive symptoms, and problematic drinking remains to be explored. Here, we examined the prevalence of olfactory distortion (parosmia) and hallucination (phantosmia) and assessed their associations with problematic drinking and depressive symptoms., Methods: In April-June 2022, 250 participants across the spectrum of AUD were recruited for assessment in the National Institute on Alcohol Abuse and Alcoholism COVID-19 Pandemic Impact on Alcohol study. Surveys covered self-reported olfactory function, depressive symptoms, and problematic drinking, with key measures assessed, including the Alcohol Use Disorders Identification Test and the Patient Health Questionnaire. Predictors in the analysis included parosmia and phantosmia, with covariates comprising age, sex, socioeconomic status, race, ethnicity, COVID-19 infection status, and smoking status., Results: Among 250 individuals, 5.2% experienced parosmia and 4.4% reported phantosmia. Parosmia was associated with higher Alcohol Use Disorders Identification Test scores (β = 7.14; 95% confidence interval = 3.31, 10.96; P < 0.001), whereas phantosmia was linked to higher Patient Health Questionnaire scores (β = 3.32; 95% confidence interval = 0.22, 6.42; P = 0.03). These associations persisted in both the full sample and the subset of participants without COVID-19., Conclusions: Our study highlights strong existing links among olfactory deficits, problem drinking, and depressive symptoms, underscoring the need to assess smell impairments in clinical settings. Future research should explore these connections further to develop new treatments for individuals with AUD and depression., Competing Interests: The authors report no conflicts of interest., (Copyright © 2024 Written work prepared by employees of the Federal Government as part of their official duties is, under the U.S. Copyright Act, a “work of the United States Government” for which copyright protection under Title 17 of the United States Code is not available. As such, copyright does not extend to the contributions of employees of the Federal Government.)
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- 2024
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41. The gut-brain axis in individuals with alcohol use disorder: An exploratory study of associations among clinical symptoms, brain morphometry, and the gut microbiome.
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Maki KA, Wallen GR, Bastiaanssen TFS, Hsu LY, Valencia ME, Ramchandani VA, Schwandt ML, Diazgranados N, Cryan JF, Momenan R, and Barb JJ
- Abstract
Background: Alcohol use disorder (AUD) is commonly associated with distressing psychological symptoms. Pathologic changes associated with AUD have been described in both the gut microbiome and brain, but the mechanisms underlying gut-brain signaling in individuals with AUD are unknown. This study examined associations among the gut microbiome, brain morphometry, and clinical symptoms in treatment-seeking individuals with AUD., Methods: We performed a secondary analysis of data collected during inpatient treatment for AUD in subjects who provided gut microbiome samples and had structural brain magnetic resonance imaging (MRI; n = 16). Shotgun metagenomics sequencing was performed, and the morphometry of brain regions of interest was calculated. Clinical symptom severity was quantified using validated instruments. Gut-brain modules (GBMs) used to infer neuroactive signaling potential from the gut microbiome were generated in addition to microbiome features (e.g., alpha diversity and bacterial taxa abundance). Bivariate correlations were performed between MRI and clinical features, microbiome and clinical features, and MRI and microbiome features., Results: Amygdala volume was significantly associated with alpha diversity and the abundance of several bacteria including taxa classified to Blautia, Ruminococcus, Bacteroides, and Phocaeicola. There were moderate associations between amygdala volume and GBMs, including butyrate synthesis I, glutamate synthesis I, and GABA synthesis I & II, but these relationships were not significant after false discovery rate (FDR) correction. Other bacterial taxa with shared associations to MRI features and clinical symptoms included Escherichia coli and Prevotella copri., Conclusions: We identified gut microbiome features associated with MRI morphometry and AUD-associated symptom severity. Given the small sample size and bivariate associations performed, these results require confirmation in larger samples and controls to provide meaningful clinical inferences. Nevertheless, these results will inform targeted future research on the role of the gut microbiome in gut-brain communication and how signaling may be altered in patients with AUD., (© 2024 The Author(s). Alcohol, Clinical and Experimental Research published by Wiley Periodicals LLC on behalf of Research Society on Alcohol. This article has been contributed to by U.S. Government employees and their work is in the public domain in the USA.)
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- 2024
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42. Sleep Delta power, age, and sex effects in treatment-resistant depression.
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Hejazi NS, Duncan WC Jr, Kheirkhah M, Kowalczyk A, Riedner B, Oppenheimer M, Momenan R, Yuan Q, Kerich M, Goldman D, and Zarate CA Jr
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- Humans, Female, Male, Middle Aged, Adult, Aged, Sex Characteristics, Young Adult, Sleep Wake Disorders physiopathology, Sleep physiology, Depressive Disorder, Treatment-Resistant physiopathology, Delta Rhythm physiology, Polysomnography, Electroencephalography
- Abstract
Electroencephalographic (EEG) deficits in slow wave activity or Delta power (0.5-4 Hz) indicate disturbed sleep homeostasis and are hallmarks of depression. Sleep homeostasis is linked to restorative sleep and potential antidepressant response via non-rapid eye movement (NREM) slow wave sleep (SWS) during which neurons undergo essential repair and rejuvenation. Decreased Low Delta power (0.5-2 Hz) was previously reported in individuals with depression. This study investigated power levels in the Low Delta (0.5-<2 Hz), High Delta (2-4 Hz), and Total Delta (0.5-4 Hz) bands and their association with age, sex, and disrupted sleep in treatment-resistant depression (TRD). Mann-Whitney U tests were used to compare the nightly progressions of Total Delta, Low Delta, and High Delta in 100 individuals with TRD and 24 healthy volunteers (HVs). Polysomnographic parameters were also examined, including Total Sleep Time (TST), Sleep Efficiency (SE), and Wake after Sleep Onset (WASO). Individuals with TRD had lower Delta power during the first NREM episode (NREM1) than HVs. The deficiency was observed in the Low Delta band versus High Delta. Females with TRD had higher Delta power than males during the first NREM1 episode, with the most noticeable sex difference observed in Low Delta. In individuals with TRD, Low Delta power correlated with WASO and SE, and High Delta correlated with WASO. Low Delta power deficits in NREM1 were observed in older males with TRD, but not females. These results provide compelling evidence for a link between age, sex, Low Delta power, sleep homeostasis, and non-restorative sleep in TRD., Competing Interests: Declaration of competing interest Dr. Zarate is listed as a co-inventor on a patent for the use of ketamine in major depression and suicidal ideation; as a co-inventor on a patent for the use of (2R,6R)-hydroxynorketamine, (S)-dehydronorketamine, and other stereoisomeric dehydroxylated and hydroxylated metabolites of (R,S)-ketamine metabolites in the treatment of depression and neuropathic pain; and as a co-inventor on a patent application for the use of (2R,6R)-hydroxynorketamine and (2S,6S)-hydroxynorketamine in the treatment of depression, anxiety, anhedonia, suicidal ideation, and post-traumatic stress disorders. He has assigned his patent rights to the U.S. government but will share a percentage of any royalties that may be received by the government. All other authors have no conflict of interest to disclose, financial or otherwise., (Published by Elsevier Ltd.)
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- 2024
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43. Disrupted brain state dynamics in opioid and alcohol use disorder: attenuation by nicotine use.
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Zhang R, Yan W, Manza P, Shokri-Kojori E, Demiral SB, Schwandt M, Vines L, Sotelo D, Tomasi D, Giddens NT, Wang GJ, Diazgranados N, Momenan R, and Volkow ND
- Subjects
- Humans, Analgesics, Opioid, Nicotine, Brain diagnostic imaging, Chronic Disease, Magnetic Resonance Imaging, Alcoholism diagnostic imaging, Opioid-Related Disorders diagnostic imaging
- Abstract
Substance use disorder (SUD) is a chronic relapsing disorder with long-lasting changes in brain intrinsic networks. While most research to date has focused on static functional connectivity, less is known about the effect of chronic drug use on dynamics of brain networks. Here we investigated brain state dynamics in individuals with opioid use (OUD) and alcohol use disorder (AUD) and assessed how concomitant nicotine use, which is frequent among individuals with OUD and AUD, affects brain dynamics. Resting-state functional magnetic resonance imaging data of 27 OUD, 107 AUD, and 137 healthy participants were included in the analyses. To identify recurrent brain states and their dynamics, we applied a data-driven clustering approach that determines brain states at a single time frame. We found that OUD and AUD non-smokers displayed similar changes in brain state dynamics including decreased fractional occupancy or dwell time in default mode network (DMN)-dominated brain states and increased appearance rate in visual network (VIS)-dominated brain states, which were also reflected in transition probabilities of related brain states. Interestingly, co-use of nicotine affected brain states in an opposite manner by lowering VIS-dominated and enhancing DMN-dominated brain states in both OUD and AUD participants. Our finding revealed a similar pattern of brain state dynamics in OUD and AUD participants that differed from controls, with an opposite effect for nicotine use suggesting distinct effects of various drugs on brain state dynamics. Different strategies for treating SUD may need to be implemented based on patterns of co-morbid drug use., (© 2023. This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply.)
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- 2024
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44. Alcohol attention bias modulates neural engagement during moral processing.
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Fede SJ, Kisner MA, Dean SF, Buckler E, Chholak R, and Momenan R
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- Humans, Male, Female, Adult, Middle Aged, Brain Mapping, Young Adult, Cues, Attention physiology, Magnetic Resonance Imaging, Morals, Attentional Bias physiology, Brain physiology, Brain diagnostic imaging, Alcoholism psychology, Alcoholism physiopathology, Alcoholism diagnostic imaging
- Abstract
The neurobiology of typical moral cognition involves the interaction of frontal, limbic, and temporoparietal networks. There is still much to be understood mechanistically about how moral processing is disrupted; such understanding is key to combating antisociality. Neuroscientific models suggest a key role for attention mechanisms in atypical moral processing. We hypothesized that attention-bias toward alcohol cues in alcohol use disorder (AUD) leads to a failure to properly engage with morally relevant stimuli, reducing moral processing. We recruited patients with AUD ( n = 30) and controls ( n = 30). During functional magnetic resonance imaging, participants viewed pairs of images consisting of a moral or neutral cue and an alcohol or neutral distractor. When viewing moral cues paired with alcohol distractors, individuals with AUD had lower medial prefrontal cortex engagement; this pattern was also seen for left amygdala in younger iAUDs. Across groups, individuals had less engagement of middle/superior temporal gyri. These findings provide initial support for AUD-related attention bias interference in sociomoral processing. If supported in future longitudinal and causal study designs, this finding carries potential societal and clinical benefits by suggesting a novel, leverageable mechanism and in providing a cognitive explanation that may help combat persistent stigma.
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- 2024
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45. Exercising healthy behaviors: A latent class analysis of positive coping during the COVID-19 pandemic and associations with alcohol-related and mental health outcomes.
- Author
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McCabe EM, Luk JW, Stangl BL, Schwandt ML, Ziausyte U, Kim H, Vergeer RR, Gunawan T, Fede SJ, Momenan R, Joseph PV, Goldman D, Diazgranados N, and Ramchandani VA
- Subjects
- Humans, Adaptation, Psychological, Latent Class Analysis, Pandemics, Health Behavior, Outcome Assessment, Health Care, COVID-19 epidemiology, Alcoholism complications, Alcoholism epidemiology, Alcoholism psychology
- Abstract
Objective: To identify latent classes of positive coping behaviors during the COVID-19 pandemic and examine associations with alcohol-related and mental health outcomes across participants with and without a history of alcohol use disorder (AUD)., Methods: Baseline data from 463 participants who were enrolled in the NIAAA COVID-19 Pandemic Impact on Alcohol (C19-PIA) Study were analyzed. Latent class analysis (LCA) was applied to five positive coping behaviors during COVID-19: taking media breaks, taking care of their body, engaging in healthy behaviors, making time to relax, and connecting with others. Latent class differences and the moderating role of history of AUD on six alcohol-related and mental health outcomes were examined using multiple regression models., Results: LCA revealed two latent classes: 83.4% High Positive Coping and 16.6% Low Positive Coping. Low Positive Coping was associated with higher levels of perceived stress, anxiety symptoms, and loneliness. A history of AUD was consistently associated with higher levels of alcohol-related and mental health outcomes. Significant interactions between Coping Latent Classes and history of AUD indicated that the associations of Low Positive Coping with problematic alcohol use, depressive symptoms, and drinking to cope motives were either stronger or only significant among individuals with a history of AUD., Conclusions: Individuals with a history of AUD may be particularly vulnerable to depressive symptoms and alcohol-related outcomes, especially when they do not utilize positive coping strategies. The promotion of positive coping strategies is a promising avenue to address alcohol-related and mental health problems during a public health crisis and warrants future research., Competing Interests: The authors have declared that no competing interests exist., (Copyright: This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. The work is made available under the Creative Commons CC0 public domain dedication.)
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- 2024
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46. Early life stress and body-mass-index modulate brain connectivity in alcohol use disorder.
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Agarwal K, Joseph PV, Zhang R, Schwandt ML, Ramchandani VA, Diazgranados N, Goldman D, and Momenan R
- Subjects
- Humans, Body Mass Index, Magnetic Resonance Imaging methods, Brain diagnostic imaging, Brain Mapping, Alcoholism diagnostic imaging, Adverse Childhood Experiences, Motor Cortex
- Abstract
Early life stress (ELS) significantly increases susceptibility to alcohol use disorder (AUD) by affecting the interplay between the executive and the salience networks (SNs). The link between AUD and higher body-mass index (BMI) is known, but we lack understanding of how BMI impacts the relationship between ELS and brain connectivity in individuals with AUD. To bridge this gap, we investigated the main and interaction effects of ELS and BMI on brain connectivity in individuals with AUD compared to non-AUD participants (n = 77 sex-matched individuals per group). All participants underwent resting-state functional magnetic resonance imaging, revealing intriguing positive functional connectivity between SN seeds and brain regions involved in somatosensory processing, motor coordination and executive control. Examining the relationship of brain connectivity with ELS and BMI, we observed positive associations with the correlations of SN seeds, right anterior insula (RAIns) and supramarginal gyrus (SMG) with clusters in motor [occipital cortex, supplementary motor cortex]; anterior cingulate cortex (ACC) with clusters in frontal, or executive, control regions (middle frontal gyrus; MFG, precentral gyrus) that reportedly are involved in processing of emotionally salient stimuli (all |β | > 0.001, |p | < 0.05). Interestingly, a negative association of the interaction effect of ELS events and BMI measures with the functional connectivity of SN seeds ACC with decision-making (MFG, precentral gyrus), RAIns and RSMG with visuo-motor control regions (occipital cortex and supplementary motor cortex) (all |β | = -0.001, |p | < 0.05). These findings emphasize the moderating effect of BMI on ELS-associated SN seed brain connectivity in AUD. Understanding the neural mechanisms linking BMI, ELS and AUD can guide targeted interventions for this population., (© 2024. This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply.)
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- 2024
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47. Recalibrating single-study effect sizes using hierarchical Bayesian models.
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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 CR, 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, and Garavan H
- 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., Competing Interests: RS has served on the scientific advisory board of Embera Neuro-therapeutics. DS has received research grants and/or consultancy honoraria from Lundbeck and Sun. MY has received funding from several law firms in relation to expert witness reports. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Cao, McCabe, Callas, Cupertino, Ottino-González, Murphy, Pancholi, Schwab, Catherine, Hutchison, Cousijn, Dagher, Foxe, Goudriaan, Hester, Li, Thompson, Morales, London, Lorenzetti, Luijten, Martin-Santos, Momenan, Paulus, Schmaal, Sinha, Solowij, Stein, Stein, Uhlmann, van Holst, Veltman, Wiers, Yücel, Zhang, Conrod, Mackey, Garavan and the ENIGMA Addiction Working Group.)
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- 2023
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48. Selecting an optimal real-time fMRI neurofeedback method for alcohol craving control training.
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Fede SJ, Kisner MA, Dean SF, Kerich M, Roopchansingh V, Diazgranados N, and Momenan R
- Abstract
Real-time fMRI neurofeedback (rt-fMRI-NF) is a technique in which information about an individual's neural state is given back to them, typically to enable and reinforce neuromodulation. Its clinical potential has been demonstrated in several applications, but lack of evidence on optimal parameters limits clinical utility of the technique. This study aimed to identify optimal parameters for rt-fMRI-NF-aided craving regulation training in alcohol use disorder (AUD). Adults with AUD (n = 30) participated in a single-session study of four runs of rt-fMRI-NF where they downregulated "craving-related" brain activity. They received one of three types of neurofeedback: multi-region of interest (ROI), support vector machine with continuous feedback (cSVM), and support vector machine with intermittent feedback (iSVM). Performance was assessed on the success rate, change in neural downregulation, and change in self-reported craving for alcohol. Participants had more successful trials in run 4 versus 1, as well as improved downregulation of the insula, anterior cingulate, and dorsolateral prefrontal cortex (dlPFC). Greater downregulation of the latter two regions predicted greater reduction in craving. iSVM performed significantly worse than the other two methods. Downregulation of the striatum and dlPFC, enabled by ROI but not cSVM neurofeedback, was correlated with a greater reduction in craving. rt-fMRI-NF training for downregulation of alcohol craving in individuals with AUD shows potential for clinical use, though this pilot study should be followed with a larger randomized-control trial before clinical meaningfulness can be established. Preliminary results suggest an advantage of multi-ROI over SVM and intermittent feedback approaches., (Published 2023. This article is a U.S. Government work and is in the public domain in the USA.)
- Published
- 2023
- Full Text
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49. Brain volumes in alcohol use disorder: Do females and males differ? A whole-brain magnetic resonance imaging mega-analysis.
- Author
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Maggioni E, Rossetti MG, Allen NB, Batalla A, Bellani M, Chye Y, Cousijn J, Goudriaan AE, Hester R, Hutchison K, Li CR, Martin-Santos R, Momenan R, Sinha R, Schmaal L, Solowij N, Suo C, van Holst RJ, Veltman DJ, Yücel M, Thompson PM, Conrod P, Mackey S, Garavan H, Brambilla P, and Lorenzetti V
- Subjects
- Humans, Female, Male, Brain diagnostic imaging, Brain pathology, Gray Matter diagnostic imaging, Gray Matter pathology, Alcohol Drinking, Magnetic Resonance Imaging methods, Alcoholism diagnostic imaging
- Abstract
Emerging evidence suggests distinct neurobiological correlates of alcohol use disorder (AUD) between sexes, which however remain largely unexplored. This work from ENIGMA Addiction Working Group aimed to characterize the sex differences in gray matter (GM) and white matter (WM) correlates of AUD using a whole-brain, voxel-based, multi-tissue mega-analytic approach, thereby extending our recent surface-based region of interest findings on a nearly matching sample using a complementary methodological approach. T1-weighted magnetic resonance imaging (MRI) data from 653 people with AUD and 326 controls was analyzed using voxel-based morphometry. The effects of group, sex, group-by-sex, and substance use severity in AUD on brain volumes were assessed using General Linear Models. Individuals with AUD relative to controls had lower GM volume in striatal, thalamic, cerebellar, and widespread cortical clusters. Group-by-sex effects were found in cerebellar GM and WM volumes, which were more affected by AUD in females than males. Smaller group-by-sex effects were also found in frontotemporal WM tracts, which were more affected in AUD females, and in temporo-occipital and midcingulate GM volumes, which were more affected in AUD males. AUD females but not males showed a negative association between monthly drinks and precentral GM volume. Our results suggest that AUD is associated with both shared and distinct widespread effects on GM and WM volumes in females and males. This evidence advances our previous region of interest knowledge, supporting the usefulness of adopting an exploratory perspective and the need to include sex as a relevant moderator variable in AUD., (© 2023 The Authors. Human Brain Mapping published by Wiley Periodicals LLC.)
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- 2023
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50. Preliminary evidence for changes in frontoparietal network connectivity in the early abstinence period in alcohol use disorder: a longitudinal resting-state functional magnetic resonance imaging study.
- Author
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van Oort J, Diazgranados N, George DT, Horneffer Y, Schwandt M, Goldman D, and Momenan R
- Abstract
The early abstinence period is a crucial phase in alcohol use disorder (AUD) in which patients have to find a new equilibrium and may start recovery, or conversely, relapse. However, the changes in brain functions during this key period are still largely unknown. We set out to study longitudinal changes in large-scale brain networks during the early abstinence period using resting-state scans. We scanned AUD patients twice in a well-controlled inpatient setting, with the first scan taking place shortly after admission and the second scan 4 weeks (±9 days) later near the end of the treatment period. We studied 37 AUD patients (22 males) and 27 healthy controls (16 males). We focused on three networks that are affected in AUD and underly core symptom dimensions in this disorder: the frontoparietal networks (left and right FPN) and default mode network (DMN). Both the whole brain and within network connectivity of these networks were studied using dual regression. Finally, we explored correlations between these brain networks and various neuropsychological and behavioral measures. In contrast to the controls ( Z = -1.081, p = 0.280), the AUD patients showed a decrease in within left FPN connectivity ( Z = -2.029, p = 0.042). However, these results did not survive a strict Bonferroni correction. The decrease in left FPN connectivity during the early abstinence period in AUD may reflect an initially upregulated FPN, which recovers to a lower resting-state connectivity level during subsequent weeks of abstinence. The AUD patients showed a trend for a positive association between the change in left FPN connectivity and trait anxiety (r
s = 0.303, p = 0.068), and a trend for a negative association between the change in left FPN connectivity and delay discounting (rs = -0.283, p = 0.089) (uncorrected for multiple comparisons). This suggests that the FPN might be involved in top-down control of impulsivity and anxiety, which are important risk factors for relapse. Although there were no statistically significant results (after multiple comparison correction), our preliminary findings encourage further research into the dynamic neuroadaptations during the clinically crucial early abstinence period and could inform future study designs., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 van Oort, Diazgranados, George, Horneffer, Schwandt, Goldman and Momenan.)- Published
- 2023
- Full Text
- View/download PDF
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