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Buján GE, D'Alessio L, Serra HA, Guelman LR, Molina SJ. Assessment of Hippocampal-Related Behavioral Changes in Adolescent Rats of both Sexes Following Voluntary Intermittent Ethanol Intake and Noise Exposure: A Putative Underlying Mechanism and Implementation of a Non-pharmacological Preventive Strategy. Neurotox Res 2024; 42:29. [PMID: 38856796 DOI: 10.1007/s12640-024-00707-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 04/16/2024] [Accepted: 05/27/2024] [Indexed: 06/11/2024]
Abstract
Ethanol (EtOH) intake and noise exposure are particularly concerning among human adolescents because the potential to harm brain. Unfortunately, putative underlying mechanisms remain to be elucidated. Moreover, implementing non-pharmacological strategies, such as enriched environments (EE), would be pertinent in the field of neuroprotection. This study aims to explore possible underlying triggering mechanism of hippocampus-dependent behaviors in adolescent animals of both sexes following ethanol intake, noise exposure, or a combination of both, as well as the impact of EE. Adolescent Wistar rats of both sexes were subjected to an intermittent voluntary EtOH intake paradigm for one week. A subgroup of animals was exposed to white noise for two hours after the last session of EtOH intake. Some animals of both groups were housed in EE cages. Hippocampal-dependent behavioral assessment and hippocampal oxidative state evaluation were performed. Results show that different hippocampal-dependent behavioral alterations might be induced in animals of both sexes after EtOH intake and sequential noise exposure, that in some cases are sex-specific. Moreover, hippocampal oxidative imbalance seems to be one of the potential underlying mechanisms. Additionally, most behavioral and oxidative alterations were prevented by EE. These findings suggest that two frequently found environmental agents may impact behavior and oxidative pathways in both sexes in an animal model. In addition, EE resulted a partially effective neuroprotective strategy. Therefore, it could be suggested that the implementation of a non-pharmacological approach might also potentially provide neuroprotective advantages against other challenges. Finally, considering its potential for translational human benefit might be worth.
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Affiliation(s)
- G E Buján
- Facultad de Medicina, Departamento de Toxicología y Farmacología, 1ª Cátedra de Farmacología, Buenos Aires, Universidad de Buenos Aires (UBA), Paraguay 2155, piso 15, 1121, Ciudad Autónoma de Buenos Aires, Argentina
| | - L D'Alessio
- Facultad de Medicina, Departamento de Toxicología y Farmacología, 1ª Cátedra de Farmacología, Buenos Aires, Universidad de Buenos Aires (UBA), Paraguay 2155, piso 15, 1121, Ciudad Autónoma de Buenos Aires, Argentina
- Instituto de Biología Celular y Neurociencias (IBCN), Universidad de Buenos Aires (UBA)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - H A Serra
- Facultad de Medicina, Departamento de Toxicología y Farmacología, 1ª Cátedra de Farmacología, Buenos Aires, Universidad de Buenos Aires (UBA), Paraguay 2155, piso 15, 1121, Ciudad Autónoma de Buenos Aires, Argentina
| | - L R Guelman
- Facultad de Medicina, Departamento de Toxicología y Farmacología, 1ª Cátedra de Farmacología, Buenos Aires, Universidad de Buenos Aires (UBA), Paraguay 2155, piso 15, 1121, Ciudad Autónoma de Buenos Aires, Argentina.
- Centro de Estudios Farmacológicos y Botánicos (CEFyBO), Universidad de Buenos Aires (UBA)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
| | - S J Molina
- Centro de Estudios Farmacológicos y Botánicos (CEFyBO), Universidad de Buenos Aires (UBA)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
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2
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Peng Q, Gilder DA, Bernert RA, Karriker-Jaffe KJ, Ehlers CL. Genetic factors associated with suicidal behaviors and alcohol use disorders in an American Indian population. Mol Psychiatry 2024; 29:902-913. [PMID: 38177348 PMCID: PMC11176067 DOI: 10.1038/s41380-023-02379-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 12/12/2023] [Accepted: 12/13/2023] [Indexed: 01/06/2024]
Abstract
American Indians (AI) demonstrate the highest rates of both suicidal behaviors (SB) and alcohol use disorders (AUD) among all ethnic groups in the US. Rates of suicide and AUD vary substantially between tribal groups and across different geographical regions, underscoring a need to delineate more specific risk and resilience factors. Using data from over 740 AI living within eight contiguous reservations, we assessed genetic risk factors for SB by investigating: (1) possible genetic overlap with AUD, and (2) impacts of rare and low-frequency genomic variants. Suicidal behaviors included lifetime history of suicidal thoughts and acts, including verified suicide deaths, scored using a ranking variable for the SB phenotype (range 0-4). We identified five loci significantly associated with SB and AUD, two of which are intergenic and three intronic on genes AACSP1, ANK1, and FBXO11. Nonsynonymous rare and low-frequency mutations in four genes including SERPINF1 (PEDF), ZNF30, CD34, and SLC5A9, and non-intronic rare and low-frequency mutations in genes OPRD1, HSD17B3 and one lincRNA were significantly associated with SB. One identified pathway related to hypoxia-inducible factor (HIF) regulation, whose 83 nonsynonymous rare and low-frequency variants on 10 genes were significantly linked to SB as well. Four additional genes, and two pathways related to vasopressin-regulated water metabolism and cellular hexose transport, also were strongly associated with SB. This study represents the first investigation of genetic factors for SB in an American Indian population that has high risk for suicide. Our study suggests that bivariate association analysis between comorbid disorders can increase statistical power; and rare and low-frequency variant analysis in a high-risk population enabled by whole-genome sequencing has the potential to identify novel genetic factors. Although such findings may be population specific, rare functional mutations relating to PEDF and HIF regulation align with past reports and suggest a biological mechanism for suicide risk and a potential therapeutic target for intervention.
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Affiliation(s)
- Qian Peng
- Department of Neuroscience, The Scripps Research Institute, La Jolla, CA, USA.
| | - David A Gilder
- Department of Neuroscience, The Scripps Research Institute, La Jolla, CA, USA
| | - Rebecca A Bernert
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
| | | | - Cindy L Ehlers
- Department of Neuroscience, The Scripps Research Institute, La Jolla, CA, USA
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Ehlers CL, Schuckit MA, Hesselbrock V, Gilder DA, Wills D, Bucholz K. The clinical course of antisocial behaviors in men and women of three racial groups. J Psychiatr Res 2022; 151:319-327. [PMID: 35533515 PMCID: PMC9744109 DOI: 10.1016/j.jpsychires.2022.04.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 04/14/2022] [Accepted: 04/28/2022] [Indexed: 12/14/2022]
Abstract
AIMS To describe the clinical course and symptom profile of DSM-IV Antisocial Personality Disorder (ASPD) and the syndrome of Adult Antisocial Behavior Syndrome (AABS) and determine if they differ based on sex and race. METHODS Using questions from a validated semi-structured interview, data were gathered from 2 independent family studies in: 1) American Indians (AI), and 2) European Americans (EA), African Americans (AA) (total n = 7171) who reported antisocial symptoms. RESULTS Within these two samples 1148 (16%) individuals met ASPD criteria, 1932 (27%) met adult ASPD but not childhood conduct disorder (CD) (i.e., AABS). The clinical course of the antisocial behaviors studied did not differ based on race or sex; however, individual symptom counts, and age of onsets of those symptoms, were significantly different across the groups. Women reported fewer symptoms and at an older age (less fights, school suspensions/expulsions, arrests or jail time), than men but were more likely to run away from home. Those with ASPD vs. AABS had more symptoms overall including not experiencing remorse. AA and AI participants and those with ASPD, had more symptoms, and were more likely to be suspended/expelled from school and arrested at a younger age than EA. CONCLUSION In these select samples, the order and sequence of antisocial behaviors did not differ by race, AASB vs. ASPD, or sex; however individual symptom endorsement did, with men (vs. women), those with ASPD (vs. AABS), AI and AA (vs. EA) reporting more suspensions/expulsions from school and arrests. This suggests further study of the possible role of race and sex in the consequences associated with antisocial syndromes is warranted.
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Affiliation(s)
- Cindy L. Ehlers
- Department of Neurosciences, The Scripps Research Institute, La Jolla, CA
| | | | - Victor Hesselbrock
- Department of Psychiatry, University of Connecticut School of Medicine, Department of Psychiatry, Farmington, CT
| | - David A. Gilder
- Department of Neurosciences, The Scripps Research Institute, La Jolla, CA
| | - Derek Wills
- Department of Neurosciences, The Scripps Research Institute, La Jolla, CA
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Buján GE, D'Alessio L, Serra HA, Molina SJ, Guelman LR. Behavioral alterations induced by intermittent ethanol intake and noise exposure in adolescent rats. Eur J Neurosci 2022; 55:1756-1773. [PMID: 35342999 DOI: 10.1111/ejn.15657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 03/04/2022] [Accepted: 03/22/2022] [Indexed: 11/27/2022]
Abstract
Alcohol intake and exposure to noise are common activities of human adolescents performed in entertainment contexts worldwide that can induce behavioral disturbances. Therefore, the aim of the present work was to investigate in an experimental model of adolescent animals whether noise exposure and intermittent ethanol intake, when present individually or sequentially, might be able to modify different behaviors. Adolescent Wistar rats of both sexes were subjected to voluntary intermittent ethanol intake for 1 week followed by exposure to noise for 2 h and tested in a battery of behavioral tasks. Data show that males exposed to noise experienced a deficit in associative memory (AM), increase in anxiety-like behaviors (ALB) and altered reaction to novelty (RN) when compared with sham animals, whereas females also showed an increase in risk assessment behaviors (RAB) and a decrease in exploratory activity (EA). In contrast, ethanol intake induced an increase in RAB and RN in males and females, whereas females also showed a deficit in AM and EA as well as an increase in ALB. When ethanol was ingested before noise exposure, most parameters were counteracted both in male and females, but differed among sexes. In consequence, it could be hypothesized that an environmental acute stressor like noise might trigger a behavioral counteracting induced by a previous repeated exposure to a chemical agent such as ethanol, leading to a compensation of a non-adaptive behavior and reaching a better adjustment to the environment.
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Affiliation(s)
- Gustavo Ezequiel Buján
- Universidad de Buenos Aires. Facultad de Medicina. 1ª Cátedra de Farmacología, Buenos Aires, Argentina
| | - Luciana D'Alessio
- Universidad de Buenos Aires. Facultad de Medicina. 1ª Cátedra de Farmacología, Buenos Aires, Argentina.,Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología Celular y Neurociencias (IBCN, UBA-CONICET). Facultad de Medicina, Buenos Aires, Argentina
| | - Héctor Alejandro Serra
- Universidad de Buenos Aires. Facultad de Medicina. 1ª Cátedra de Farmacología, Buenos Aires, Argentina
| | - Sonia Jazmín Molina
- Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Estudios Farmacológicos y Botánicos (CEFyBO, UBA-CONICET). Facultad de Medicina, Buenos Aires, Argentina
| | - Laura Ruth Guelman
- Universidad de Buenos Aires. Facultad de Medicina. 1ª Cátedra de Farmacología, Buenos Aires, Argentina.,Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Estudios Farmacológicos y Botánicos (CEFyBO, UBA-CONICET). Facultad de Medicina, Buenos Aires, Argentina
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Effects of genetic risk for alcohol dependence and onset of regular drinking on the progression to alcohol dependence: A polygenic risk score approach. Drug Alcohol Depend 2022; 230:109117. [PMID: 34844060 PMCID: PMC8714681 DOI: 10.1016/j.drugalcdep.2021.109117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 09/28/2021] [Accepted: 10/04/2021] [Indexed: 01/03/2023]
Abstract
BACKGROUND Prior studies have established the importance of genetic contributions to the etiology of alcohol dependence (AD), and suggested an early onset of alcohol use represents an initial marker of this genetic risk, which is associated with a more rapid progression to AD and increased risk for AD itself. Building on prior work, the current study examined whether the additive effects of AD risk variants predicted the rate of progression to AD from the onset of regular drinking, a drinking milestone with high clinical relevance to AD prevention. METHODS Data from 1501 European-ancestry adults from the University of California - San Francisco Family Alcoholism Study were used to examine whether polygenic risk scores for AD (PRSAD) and age-at-onset of regular drinking contributed uniquely to the likelihood of having a lifetime AD diagnosis and the rate of progression from regular drinking to AD. Mixed effects logistic regression and Cox proportional hazards regression analyses were employed. RESULTS Increases in PRSAD were associated with a faster progression from regular drinking to AD independent of age-at-onset of regular drinking. An independent effect of age-at-onset of regular drinking was also observed indicating that a one-year delay in regular drinking was associated with a 7% decrease in the hazard of progression to AD among drinkers with an early onset (≤ 18), but a 3% increase among drinkers with a late onset (> 18) of regular drinking. CONCLUSIONS These results broaden our understanding of the contributions of measured genotypes underlying AD-risk on the etiology and clinical course of AD.
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Gender Differences among Sardinians with Alcohol Use Disorder. J Clin Med 2021; 10:jcm10204688. [PMID: 34682808 PMCID: PMC8537954 DOI: 10.3390/jcm10204688] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/27/2021] [Accepted: 10/08/2021] [Indexed: 11/16/2022] Open
Abstract
Sardinia is an Italian island in the Mediterranean characterized by secular isolation and the singular genetic characteristics of its inhabitants. Findings obtained in populations with diverse genetic make-up and cultural background indicate gender differences and/or similarities in drinking characteristics of patients with alcohol use disorder (AUD). Knowledge of these characteristics in AUD patients is useful to improve access to treatments. This paper investigated the drinking characteristics of 66 female and 282 male outpatients with AUD, born from 1937 to 1991, living in Sardinia, and compared their characteristics with those of AUD patients living in other countries. Most Sardinian patients were men, approximately 3 years younger than women; women consumed lower amounts of alcohol than men but did not differ from men in the severity of AUD. Men were more often single than women, while a higher proportion of women reported that their mother or spouse was affected by AUD. Anxiety and depression were more prevalent among women while a higher proportion of men were affected by substance use disorders. Women were older than men at the age of first drink, regular drinking, and onset of AUD, and progressed faster than men from regular use to AUD onset. Women did not differ from men in age at first request for care, and in the lapse from AUD onset to first request for care. Women and men waited for more than 8 and 9 years, respectively, before receiving medical treatment. Gender differences progressively decreased among younger patients. Although the scarce number of women in some cohorts limits the strength of these findings, drinking characteristics of Sardinian patients did not vary significantly from those of AUD patients living in other countries. These results suggest that the number of Sardinian women with AUD is increasing and services for treatment of AUD should (a) consider women’s specific needs, and (b) realize effective policies to reduce latency prior to accessing medical treatment for both men and women with AUD.
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Robinson DL, Amodeo LR, Chandler LJ, Crews FT, Ehlers CL, Gómez-A A, Healey KL, Kuhn CM, Macht VA, Marshall SA, Swartzwelder HS, Varlinskaya EI, Werner DF. The role of sex in the persistent effects of adolescent alcohol exposure on behavior and neurobiology in rodents. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2021; 160:305-340. [PMID: 34696877 DOI: 10.1016/bs.irn.2021.07.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Alcohol drinking is often initiated during adolescence, and this frequently escalates to binge drinking. As adolescence is also a period of dynamic neurodevelopment, preclinical evidence has highlighted that some of the consequences of binge drinking can be long lasting with deficits persisting into adulthood in a variety of cognitive-behavioral tasks. However, while the majority of preclinical work to date has been performed in male rodents, the rapid increase in binge drinking in adolescent female humans has re-emphasized the importance of addressing alcohol effects in the context of sex as a biological variable. Here we review several of the consequences of adolescent ethanol exposure in light of sex as a critical biological variable. While some alcohol-induced outcomes, such as non-social approach/avoidance behavior and sleep disruption, are generally consistent across sex, others are variable across sex, such as alcohol drinking, sensitivity to ethanol, social anxiety-like behavior, and induction of proinflammatory markers.
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Affiliation(s)
- Donita L Robinson
- Neurobiology of Adolescent Drinking in Adulthood Consortium (NADIA), United States; Bowles Center for Alcohol Studies, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.
| | - Leslie R Amodeo
- Neurobiology of Adolescent Drinking in Adulthood Consortium (NADIA), United States; Department of Psychology, California State University, San Bernardino, CA, United States
| | - L Judson Chandler
- Neurobiology of Adolescent Drinking in Adulthood Consortium (NADIA), United States; Department of Neuroscience, Medical University of South Carolina, Charleston, SC, United States
| | - Fulton T Crews
- Neurobiology of Adolescent Drinking in Adulthood Consortium (NADIA), United States; Bowles Center for Alcohol Studies, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Cindy L Ehlers
- Neurobiology of Adolescent Drinking in Adulthood Consortium (NADIA), United States; Department of Neuroscience, Scripps Research, La Jolla, CA, United States
| | - Alexander Gómez-A
- Neurobiology of Adolescent Drinking in Adulthood Consortium (NADIA), United States; Bowles Center for Alcohol Studies, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Kati L Healey
- Neurobiology of Adolescent Drinking in Adulthood Consortium (NADIA), United States; Department of Psychiatry and Behavioral Sciences, School of Medicine, Duke University, Durham, NC, United States
| | - Cynthia M Kuhn
- Neurobiology of Adolescent Drinking in Adulthood Consortium (NADIA), United States; Department of Pharmacology and Cancer Biology, School of Medicine, Duke University, Durham, NC, United States
| | - Victoria A Macht
- Neurobiology of Adolescent Drinking in Adulthood Consortium (NADIA), United States; Bowles Center for Alcohol Studies, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - S Alexander Marshall
- Neurobiology of Adolescent Drinking in Adulthood Consortium (NADIA), United States; Biological and Biomedical Sciences Department, North Carolina Central University, Durham, NC, United States
| | - H Scott Swartzwelder
- Neurobiology of Adolescent Drinking in Adulthood Consortium (NADIA), United States; Department of Psychiatry and Behavioral Sciences, School of Medicine, Duke University, Durham, NC, United States
| | - Elena I Varlinskaya
- Neurobiology of Adolescent Drinking in Adulthood Consortium (NADIA), United States; Center for Development and Behavioral Neuroscience, Department of Psychology, Binghamton University, Binghamton, NY, United States
| | - David F Werner
- Neurobiology of Adolescent Drinking in Adulthood Consortium (NADIA), United States; Center for Development and Behavioral Neuroscience, Department of Psychology, Binghamton University, Binghamton, NY, United States
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Welsh JW, Hunnicutt-Ferguson K, Cattie JE, Shentu Y, Mataczynski MJ, LoParo D, Greenfield SF. Adaptation and Pilot Testing of the Women's Recovery Group for Young Adults (WRG-YA). ALCOHOLISM TREATMENT QUARTERLY 2021; 39:225-237. [PMID: 33767527 DOI: 10.1080/07347324.2020.1837044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Gender specific substance use disorder treatment has demonstrated promise in adult women, but is relatively unexplored in young adults. To address the specific needs of young adult females, the manual-based Women's Recovery Group (WRG) was adapted for women ages 18-25. Treatment engagement and retention, group cohesiveness, satisfaction, and substance use outcomes were measured during group treatment and at 1-month follow up. This pilot supports the feasibility and initial acceptability of the adapted form of the WRG for young adults. Data from this study may inform future gender specific treatment approaches for substance use disorders in younger populations.
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Affiliation(s)
- Justine W Welsh
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, 12 Executive Park Dr. NE, Suite 200, Atlanta, GA 30329, USA
| | - Kallio Hunnicutt-Ferguson
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, 12 Executive Park Dr. NE, Suite 200, Atlanta, GA 30329, USA
| | - Jordan E Cattie
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, 12 Executive Park Dr. NE, Suite 200, Atlanta, GA 30329, USA
| | - Yujia Shentu
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, 12 Executive Park Dr. NE, Suite 200, Atlanta, GA 30329, USA
| | - Maggie J Mataczynski
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, 12 Executive Park Dr. NE, Suite 200, Atlanta, GA 30329, USA
| | - Devon LoParo
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, 12 Executive Park Dr. NE, Suite 200, Atlanta, GA 30329, USA
| | - Shelly F Greenfield
- McLean Hospital Division of Alcohol, Drugs and Addiction, Division of Women's Mental Health, Harvard Medical School, McLean Hospital, 115 Mill Street, Belmont, MA 02478, USA
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Peng Q, Wilhelmsen KC, Ehlers CL. Common genetic substrates of alcohol and substance use disorder severity revealed by pleiotropy detection against GWAS catalog in two populations. Addict Biol 2021; 26:e12877. [PMID: 32027075 PMCID: PMC7415504 DOI: 10.1111/adb.12877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 11/15/2019] [Accepted: 01/11/2020] [Indexed: 12/01/2022]
Abstract
Alcohol and other substance use disorders (AUD and SUD) are complex diseases that are postulated to have a polygenic inheritance and are often comorbid with other disorders. The comorbidities may arise partially through genetic pleiotropy. Identification of specific gene variants accounting for large parts of the variance in these disorders has yet to be accomplished. We describe a flexible strategy that takes a variant-trait association database and determines if a subset of disease/straits are potentially pleiotropic with the disorder under study. We demonstrate its usage in a study of use disorders in two independent cohorts: alcohol, stimulants, cannabis (CUD), and multi-substance use disorders (MSUD) in American Indians (AI) and AUD and CUD in Mexican Americans (MA). Using a machine learning method with variants in GWAS catalog, we identified 229 to 246 pleiotropic variants for AI and 153 to 160 for MA for each SUD. Inflammation was the most enriched for MSUD and AUD in AIs. Neurological disorder was the most significantly enriched for CUD in both cohorts, and for AUD and stimulants in AIs. Of the select pleiotropic genes shared among substances-cohorts, multiple biological pathways implicated in SUD and other psychiatric disorders were enriched, including neurotrophic factors, immune responses, extracellular matrix, and circadian regulation. Shared pleiotropic genes were significantly up-regulated in brain regions playing important roles in SUD, down-regulated in esophagus mucosa, and differentially regulated in adrenal gland. This study fills a gap for pleiotropy detection in understudied admixed populations and identifies pleiotropic variants that may be potential targets of interest for SUD.
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Affiliation(s)
- Qian Peng
- Department of Neuroscience The Scripps Research Institute La Jolla CA USA
| | - Kirk C. Wilhelmsen
- Department of Genetics and Neurology University of North Carolina Chapel Hill NC USA
| | - Cindy L. Ehlers
- Department of Neuroscience The Scripps Research Institute La Jolla CA USA
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Cannady R, Nguyen T, Padula AE, Rinker JA, Lopez MF, Becker HC, Woodward JJ, Mulholland PJ. Interaction of chronic intermittent ethanol and repeated stress on structural and functional plasticity in the mouse medial prefrontal cortex. Neuropharmacology 2021; 182:108396. [PMID: 33181147 PMCID: PMC7942177 DOI: 10.1016/j.neuropharm.2020.108396] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 10/05/2020] [Accepted: 11/06/2020] [Indexed: 01/27/2023]
Abstract
Stress is a risk factor that plays a considerable role in the development and maintenance of alcohol (ethanol) abuse and relapse. Preclinical studies examining ethanol-stress interactions have demonstrated elevated ethanol drinking, cognitive deficits, and negative affective behaviors in mice. However, the neural adaptations in prefrontal cortical regions that drive these aberrant behaviors produced by ethanol-stress interactions are unknown. In this study, male C57BL/6J mice were exposed to chronic intermittent ethanol (CIE) and repeated forced swim stress (FSS). After two cycles of CIE x FSS, brain slices containing the prelimbic (PrL) and infralimbic (IfL) cortex were prepared for analysis of adaptations in dendritic spines and synaptic plasticity. In the PrL cortex, total spine density was increased in mice exposed to CIE. Immediately following induction of long-term potentiation (LTP), the fEPSP slope was increased in the PrL of CIE x FSS treated mice, indicative of a presynaptic adaptation on post-tetanic potentiation (PTP). In the IfL cortex, CIE exposure regardless of FSS experience resulted in an increase in spine density. FSS alone or when combined with CIE exposure increased PTP following LTP induction. Repeated FSS episodes increased IfL cortical paired-pulse facilitation, a second measure of presynaptic plasticity. In summary, CIE exposure resulted in structural adaptations while repeated stress exposure drove metaplastic changes in presynaptic function, demonstrating distinct morphological and functional changes in PrL and IfL cortical neurons. Thus, the structural and functional adaptations may be one mechanism underlying the development of excessive drinking and cognitive deficits associated with ethanol-stress interactions.
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Affiliation(s)
- Reginald Cannady
- Department of Neuroscience, Charleston Alcohol Research Center, Medical University of South Carolina, 30 Courtenay Drive, Charleston, SC, 29425, USA; Department of Biology, College of Science and Technology, North Carolina Agricultural & Technical State University, 1601 East Market Street, Barnes Hall 215, Greensboro, NC, 27411, USA
| | - Tiffany Nguyen
- Department of Neuroscience, Charleston Alcohol Research Center, Medical University of South Carolina, 30 Courtenay Drive, Charleston, SC, 29425, USA
| | - Audrey E Padula
- Department of Neuroscience, Charleston Alcohol Research Center, Medical University of South Carolina, 30 Courtenay Drive, Charleston, SC, 29425, USA
| | - Jennifer A Rinker
- Department of Neuroscience, Charleston Alcohol Research Center, Medical University of South Carolina, 30 Courtenay Drive, Charleston, SC, 29425, USA
| | - Marcelo F Lopez
- Department of Neuroscience, Charleston Alcohol Research Center, Medical University of South Carolina, 30 Courtenay Drive, Charleston, SC, 29425, USA
| | - Howard C Becker
- Department of Neuroscience, Charleston Alcohol Research Center, Medical University of South Carolina, 30 Courtenay Drive, Charleston, SC, 29425, USA
| | - John J Woodward
- Department of Neuroscience, Charleston Alcohol Research Center, Medical University of South Carolina, 30 Courtenay Drive, Charleston, SC, 29425, USA
| | - Patrick J Mulholland
- Department of Neuroscience, Charleston Alcohol Research Center, Medical University of South Carolina, 30 Courtenay Drive, Charleston, SC, 29425, USA.
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Yadav AK, Khanuja RK, Velaga NR. Gender differences in driving control of young alcohol-impaired drivers. Drug Alcohol Depend 2020; 213:108075. [PMID: 32498031 DOI: 10.1016/j.drugalcdep.2020.108075] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 05/14/2020] [Accepted: 05/14/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND Male and female drivers exhibit different degrees of vehicle control while driving under the influence of alcohol. However, this interaction between alcohol and gender is understudied. The present study examined the effects of different alcohol levels on the driving control of male and female drivers with the help of driving simulator experiments in heterogeneous traffic conditions. METHOD Forty young drivers (20 males and 20 females) completed simulated driving at four Blood Alcohol Concentration (BAC) levels: 0% (control), 0.03%, 0.05% and 0.08%. Driving impairment in vehicle control was measured in terms of average speed, acceleration variability and reaction time of drivers. Repeated-measures ANOVA tests were conducted and regression models were developed for male and female drivers to quantify the effects of BAC levels and driver characteristics on the driving control measures. RESULTS Significant effects of gender were observed for average speed (p < 0.001) and acceleration variability (p = 0.015) but not for reaction time of drivers (p = 0.891). Further, the effect of BAC was significant in all the three measures of vehicle control (p < 0.001). Driving control improved with increasing age of male drivers while caffeine consumption was observed as an alcohol-antagonizing factor in female drivers. CONCLUSION The findings suggest that vehicle control of female drivers is more likely to get affected even at low BAC levels, providing evidence that they belong to critical section of driving community in terms of alcohol-related impairment. The findings may help in discouraging drinking and driving among male and female drivers.
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Affiliation(s)
- Ankit Kumar Yadav
- Department of Civil Engineering, Indian Institute of Technology (IIT) Bombay, Powai, Mumbai, 400 076, India.
| | - Rashmeet Kaur Khanuja
- Department of Civil Engineering, Indian Institute of Technology (IIT) Bombay, Powai, Mumbai, 400 076, India.
| | - Nagendra R Velaga
- Department of Civil Engineering, Indian Institute of Technology (IIT) Bombay, Powai, Mumbai, 400 076, India.
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12
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Huang H, Zhu Z, Chen H, Ning K, Zhang R, Sun W, Li B, Jiang H, Wang W, Du J, Zhao M, Yi Z, Li J, Zhu R, Lu S, Xie S, Wang X, Fu W, Gao C, Hao W. Prevalence, Demographic, and Clinical Correlates of Comorbid Depressive Symptoms in Chinese Psychiatric Patients With Alcohol Dependence. Front Psychiatry 2020; 11:499. [PMID: 32581875 PMCID: PMC7283605 DOI: 10.3389/fpsyt.2020.00499] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Accepted: 05/18/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Depressive symptoms are common among psychiatric patients with alcohol dependence (AD). However, the prevalence and clinical correlates of comorbid depressive symptoms are less well studied in Chinese Han patients. METHODS In this hospital-based survey, we recruited 378 psychiatric patients diagnosed with AD according to the Diagnostic and Statistical Manual of Mental Disorders-Fourth Edition (DSM-IV). All patients completed the Beck Depression Inventory (BDI) to evaluate depressive symptoms and the Alcohol Use Disorders Identification Test (AUDIT) to assess the severity of drinking. RESULTS Compared to patients without depressive symptoms, 48.9% (185/378) of the patients with comorbid depressive symptoms were younger, had a more unstable marital status, had a higher AUDIT total score, and had a higher adverse consequences subscore (all P < 0.05). Further logistic regression analysis showed that unstable marital status (Odds ratios [OR] = 2.20, 95% confidence interval [CI] 1.21-3.99) and AUDIT total score (OR=1.07, 95% CI 1.03-1.11) were significantly associated with depressive symptoms. CONCLUSIONS Our findings indicate high comorbidity between AD and depressive symptoms in Chinese psychiatric patients. Moreover, some variables are correlates of comorbid depressive symptoms. Particular attention should be paid to the early detection and intervention for this comorbid condition and its risk factors.
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Affiliation(s)
- Hui Huang
- Affiliated Wuhan Mental Health Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Psychology, Chinese Academy of Sciences, Beijing, China
| | - Zhigan Zhu
- Affiliated Wuhan Mental Health Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongxian Chen
- Mental Health Institute of the Second Xiangya Hospital, Central South University, The China National Clinical Research Center for Mental Health Disorders, National Technology Institute of Psychiatry, Key Laboratory of Psychiatry and Mental Health of Hunan Province, Changsha, China
| | - Kui Ning
- Department of Psychiatry, Henan Mental Hospital , Xinxiang, China
| | - Ruiling Zhang
- Department of Psychiatry, Henan Mental Hospital , Xinxiang, China
| | - Wei Sun
- Department of Psychiatry, Peking University Sixth Hospital, Beijing, China
| | - Bing Li
- Department of Psychiatry, Peking University Sixth Hospital, Beijing, China
| | - Haifeng Jiang
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai, China
| | - Wenzheng Wang
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai, China
| | - Jiang Du
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai, China
| | - Min Zhao
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai, China
| | - Zhihua Yi
- Department of Psychiatry, West China Hospital, Sichuan University, Chengdu, China
| | - Jing Li
- Department of Psychiatry, West China Hospital, Sichuan University, Chengdu, China
| | - Rongxin Zhu
- Department of Psychiatry, Nanjing Brain Hospital, Nanjing, China
| | - Shuiping Lu
- Department of Psychiatry, Nanjing Brain Hospital, Nanjing, China
| | - Shiping Xie
- Department of Psychiatry, Nanjing Brain Hospital, Nanjing, China
| | - Xiaoping Wang
- Department of Psychiatry, Hubei General Hospital, Wuhan, China
| | - Wei Fu
- Department of Psychiatry, The First Affiliated Hospital of Xian Jiaotong University, Xian, China
| | - Chengge Gao
- Department of Psychiatry, The First Affiliated Hospital of Xian Jiaotong University, Xian, China
| | - Wei Hao
- Mental Health Institute of the Second Xiangya Hospital, Central South University, The China National Clinical Research Center for Mental Health Disorders, National Technology Institute of Psychiatry, Key Laboratory of Psychiatry and Mental Health of Hunan Province, Changsha, China
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Genetic loci for alcohol-related life events and substance-induced affective symptoms: indexing the "dark side" of addiction. Transl Psychiatry 2019; 9:71. [PMID: 30718457 PMCID: PMC6362044 DOI: 10.1038/s41398-019-0397-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 01/17/2019] [Indexed: 12/24/2022] Open
Abstract
A limited number of genetic variants have been identified in traditional GWAS as risk or protective factors for alcohol use disorders (AUD) and related phenotypes. We herein report whole-genome association and rare-variant analyses on AUD traits in American Indians (AI) and European Americans (EA). We evaluated 742 AIs and 1711 EAs using low-coverage whole-genome sequencing. Phenotypes included: (1) a metric based on the occurrence of 36 alcohol-related life events that reflect AUD severity; (2) two alcohol-induced affective symptoms that accompany severe AUDs. We identified two new loci for alcohol-related life events with converging evidence from both cohorts: rare variants of K2P channel gene KCNK2, and rare missense and splice-site variants in pro-inflammatory mediator gene PDE4C. A NAF1-FSTL5 intergenic variant and an FSTL5 variant were respectively associated with alcohol-related life events in AI and EA. PRKG2 of serine/threonine protein kinase family, and rare variants in interleukin subunit gene EBI3 (IL-27B) were uniquely associated with alcohol-induced affective symptoms in AI. LncRNA LINC02347 on 12q24.32 was uniquely associated with alcohol-induced depression in EA. The top GWAS findings were primarily rare/low-frequency variants in AI, and common variants in EA. Adrenal gland was the most enriched in tissue-specific gene expression analysis for alcohol-related life events, and nucleus accumbens was the most enriched for alcohol-induced affective states in AI. Prefrontal cortex was the most enriched in EA for both traits. These studies suggest that whole-genome sequencing can identify novel, especially uncommon, variants associated with severe AUD phenotypes although the findings may be population specific.
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Ehlers CL, Gilder DA, Gizer IR, Wilhelmsen KC. Indexing the 'dark side of addiction': substance-induced affective symptoms and alcohol use disorders. Addiction 2019; 114:139-149. [PMID: 30153346 PMCID: PMC6320236 DOI: 10.1111/add.14431] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 06/13/2018] [Accepted: 08/20/2018] [Indexed: 01/20/2023]
Abstract
BACKGROUND AND AIMS The emergence of negative affective symptoms during the course of alcohol use disorders (AUDs) (e.g. 'dark side' symptoms) has been suggested theoretically; however, the description of their occurrence is limited. This study operationalized two negative affect symptoms and tested the strength of association between these phenotypes and (1) indicators of the clinical course of the severity of AUD, (2) comorbid Axis I psychiatric disorders, suicidal behaviors and trait neuroticism and (3) whether participants reported drinking to relieve the negative affective symptoms. DESIGN A retrospective cross-sectional study was used to evaluate associations, using logistic regression, between the two negative affective symptoms and clinical measures of AUD severity and progression as well as comorbidity with other psychiatric disorders and conditions, adjusted for demographic characteristics. SETTING US community-based studies. PARTICIPANTS A total of 2568 individuals with AUDs obtained from larger population studies that targeted individuals of European American (n = 1663), Mexican American and American Indian (n = 905) ancestry. MEASUREMENTS Semi-Structured Assessment for the Genetics of Alcoholism was used to ascertain the two 'dark side' phenotypes, clinical diagnoses, the clinical course of AUD and associated symptoms. The two phenotypes were: (1) being anxious or depressed when trying to cut down or stop drinking and (2) experiencing disabling depression for more than 24 hours while drinking. FINDINGS Both phenotypes were found to be rare in mild and moderate use disorder and highly prevalent in severe AUDs. Having an independent anxiety or affective disorder and elevated scores on trait neuroticism were also associated significantly with the occurrence of both symptoms, as was alcohol 'craving', elevated treatment-seeking, suicidal behaviors and drinking to relieve the symptoms. CONCLUSIONS Affective symptoms are common in severe alcohol use disorders are associated with a history of independent affective/anxiety disorders, neuroticism and suicidal behaviors; and may promote further heavy drinking.
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Affiliation(s)
- Cindy L Ehlers
- Department of Neurosciences, The Scripps Research Institute, La Jolla, CA, USA
| | - David A Gilder
- Department of Neurosciences, The Scripps Research Institute, La Jolla, CA, USA
| | - Ian R Gizer
- Department of Psychological Sciences, University of Missouri, Columbia, MO, USA
| | - Kirk C Wilhelmsen
- Departments of Genetics and Neurology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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15
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Randall PA, Stewart RT, Besheer J. Sex differences in alcohol self-administration and relapse-like behavior in Long-Evans rats. Pharmacol Biochem Behav 2017; 156:1-9. [PMID: 28347737 DOI: 10.1016/j.pbb.2017.03.005] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 03/22/2017] [Accepted: 03/24/2017] [Indexed: 01/22/2023]
Abstract
Alcohol use disorders are a costly public health dilemma. Complicating this issue is the general lack of basic research assessing sex differences in many aspects of alcohol seeking and taking behaviors. The current experiments sought to decrease this gap in our understanding of sex differences in alcohol use disorders by assessing both male and female Long-Evans rats in parallel on alcohol self-administration, relapse-like behavior following abstinence and extinction, and motivation to respond for the standard alcohol solution and a quinine-adulterated alcohol solution. Here, we show that while males tend to have greater alcohol-reinforced responses throughout self-administration training, females show similar or greater alcohol intake (g/kg). Additionally, when tested for reinstatement of alcohol seeking and self-administration, following abstinence or extinction, males consistently showed greater reinstatement responding than females, which may be related to their training history. However, when assessed using the progressive ratio, there were no sex differences in motivation to respond for alcohol. Further, the consistent patterns of responding across months of self-administration training in both males and females, lend support for the feasibility of conducting these studies in male and female rats in parallel without concerns about daily variability. Our data also suggest that males and females should not be pooled as differences in alcohol lever responses and differences in reinstatement, as observed in the current experiments, could affect the overall outcome and possibly confound data interpretation. These studies demonstrate the importance of assessing males and females in parallel and advance the body of preclinical research on sex differences in alcohol self-administration and relapse.
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Affiliation(s)
- Patrick A Randall
- Bowles Center for Alcohol Studies, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7178, USA
| | - Robert T Stewart
- Bowles Center for Alcohol Studies, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7178, USA
| | - Joyce Besheer
- Bowles Center for Alcohol Studies, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7178, USA; Curriculum in Neurobiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7178, USA; Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7178, USA.
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Alcohol drinking during adolescence increases consumptive responses to alcohol in adulthood in Wistar rats. Alcohol 2017; 59:43-51. [PMID: 28187948 DOI: 10.1016/j.alcohol.2016.12.002] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 12/05/2016] [Accepted: 12/07/2016] [Indexed: 01/24/2023]
Abstract
Binge drinking and the onset of alcohol-use disorders usually peak during the transition between late adolescence and early adulthood, and early adolescent onset of alcohol consumption has been demonstrated to increase the risk for alcohol dependence in adulthood. In the present study, we describe an animal model of early adolescent alcohol consumption where animals drink unsweetened and unflavored ethanol in high concentrations (20%). Using this model, we investigated the influence of drinking on alcohol-related appetitive behavior and alcohol consumption levels in early adulthood. Further, we also sought to investigate whether differences in alcohol-related drinking behaviors were specific to exposure in adolescence versus exposure in adulthood. Male Wistar rats were given a 2-bottle choice between 20% ethanol and water in one group and between two water bottles in another group during their adolescence (Postnatal Day [PD] 26-59) to model voluntary drinking in adolescent humans. As young adults (PD85), rats were trained in a paradigm that provided free access to 20% alcohol for 25 min after completing up to a fixed-ratio (FR) 16 lever press response. A set of young adult male Wistar rats was exposed to the same paradigm using the same time course, beginning at PD92. The results indicate that adolescent exposure to alcohol increased consumption of alcohol in adulthood. Furthermore, when investigating differences between adolescent high and low drinkers in adulthood, high consumers continued to drink more alcohol, had fewer FR failures, and faster completion of FR schedules in adulthood, whereas the low consumers were no different from controls. Rats exposed to ethanol in young adulthood also increased future intake, but there were no differences in any other components of drinking behavior. Both adolescent- and adult-exposed rats did not exhibit an increase in lever pressing during the appetitive challenge session. These data indicate that adolescent and early adult alcohol exposure can increase consumptive aspects of drinking but that adolescent exposure may preferentially influence the motivation to drink.
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17
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Abstract
Introducción. Durante décadas, las investigaciones sobre el alcoholismo se hicieron con muestras formadas casi exclusivamente por varones; sin embargo, el creciente interés por las necesidades de las mujeres que presentan esta problemática ha generado un aumento de los estudios sobre las diferencias de género en los trastornos por consumo de alcohol.Objetivo. Obtener una visión actualizada de las características diferenciadoras del alcoholismo en mujeres.Materiales y métodos. Revisión de la literatura en las bases de datos PsycINFO y Medline entre los años 2004 y 2014.Resultados. Los estudios revisados muestran diferencias de género en la edad de inicio del consumo, el curso clínico, los factores de riesgo, la presencia de comorbilidad psicopatológica y la demanda de tratamiento.Conclusiones. Las mujeres presentan una mayor edad de inicio del consumo de alcohol y una historia de consumo más corta hasta que desarrollan problemas. Entre los factores de riesgo de consumo se observa mayor frecuencia de acontecimientos traumáticos —como maltrato y abuso sexual infantil— y convivencia con una pareja alcohólica. Las mujeres con problemas de alcoholismo también presentan mayor prevalencia de síntomas depresivos y ansiedad y menor uso de los servicios asistenciales.
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Gilder DA, Stouffer GM, Lau P, Ehlers CL. Clinical characteristics of alcohol combined with other substance use disorders in an American Indian community sample. Drug Alcohol Depend 2016; 161:222-9. [PMID: 26896167 PMCID: PMC4792738 DOI: 10.1016/j.drugalcdep.2016.02.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 02/02/2016] [Accepted: 02/03/2016] [Indexed: 10/22/2022]
Abstract
BACKGROUND Alcohol and other substance use disorders (SUD) pose major problems of morbidity and mortality in some American Indian communities, but little is known about the clinical characteristics, risk factors, and consequences of combined alcohol and other substance use disorders (multi-substance use disorder, MSUD) in those communities. METHODS Using the Semi-Structured Assessment for the Genetics of Alcoholism (SSAGA), in a community sample of 876 American Indians, the clinical characteristics of lifetime DSM-5 moderate or severe alcohol use disorder alone (AUD alone) (n=146) and MSUD (defined as alcohol and ≥1 other SUD) (n=284) were evaluated and compared to 347 participants with no lifetime SUD (no SUD). RESULTS The majority (57%) of participants with a SUD had multi-substance use disorder and 94% of those were with AUD. Stimulants (cocaine and/or amphetamine) and/or cannabis were the most common other SUDs. Participants with AUD alone were more likely to be male and have an earlier age of first alcohol intoxication than those with no SUD. Those with MSUD were more likely to have dropped out of high school, have antisocial personality disorder (ASPD) or conduct disorder (CD), have earlier ages of first alcohol intoxication and first use of cannabis and stimulants, an earlier age of onset of AUD, and more of several AUD symptoms than those with AUD alone, but the same temporal course and time to remission of AUD. CONCLUSIONS MSUD is prevalent in this sample, is associated with multiple comorbidities and denotes a more severe alcohol syndrome than AUD alone.
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Affiliation(s)
| | | | | | - Cindy L. Ehlers
- Corresponding author at: The Scripps Research Institute, 10550 North Torrey Pines Road, SP30-1501, La Jolla, CA 92037. Tel.: (858) 784-7058; Fax: (858) 784-7409.,
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19
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Traube DE, Yarnell LM, Schrager SM. Differences in polysubstance use among youth in the child welfare system: toward a better understanding of the highest-risk teens. CHILD ABUSE & NEGLECT 2016; 52:146-157. [PMID: 26726761 PMCID: PMC4779713 DOI: 10.1016/j.chiabu.2015.11.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 11/22/2015] [Accepted: 11/25/2015] [Indexed: 06/05/2023]
Abstract
The current study extended limited prior work on polysubstance use among youth in the child welfare system (CWS) by addressing their potentially greater risk of engaging in polysubstance use, the causes of interpersonal variation in use, and changes in use over time, particularly at later points of involvement in the CWS. Using longitudinal data from the National Survey of Child and Adolescent Well-Being (n=1,178), a series of time-invariant and time-varying demographic and contextual factors were explored to assess their role both overall and at unique points of involvement in the CWS. A series of unconditional and conditional curve-of-factor models were estimated and results indicated that time-invariant characteristics of ethnicity and gender were not related to polysubstance use. Time-variant characteristics of age and placement were associated with polysubstance use and highlighted the dynamic nature of age as a risk factor. Out-of-home placement was protective against later substance use for youth who had been removed from contexts with their original caretaker where there were higher levels of reported violence. Our results suggest that in the child welfare population, the modeling of multiple substances rather than a single substance in isolation is more informative because it yields information on the confluence of behaviors that tend to occur and evolve together.
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Affiliation(s)
- Dorian E. Traube
- School of Social Work, University of Southern California, 669 W. 34th St., Los Angeles, CA 90089-0411, United States of America; Tel: (213) 740-1989
| | - Lisa M. Yarnell
- American Institutes for Research, 1000 Thomas Jefferson St., NW, Office 3263, Washington, DC 20007-3835, United States of America; Tel: 202-403-6263
| | - Sheree M. Schrager
- School of Social Work, University of Southern California, 669 W. 34th St., Los Angeles, CA 90089-0411, United States of America; Tel: (213) 740-1989
- Division of Hospital Medicine, Children’s Hospital Los Angeles, 4650 Sunset Blvd, MS #94, Los Angeles, CA 90027, United States of America; Tel: (323) 361-5727
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Ehlers CL, Stouffer GM, Corey L, Gilder DA. The clinical course of DSM-5 alcohol use disorders in young adult native and Mexican Americans. Am J Addict 2015; 24:713-21. [PMID: 26346282 PMCID: PMC4715470 DOI: 10.1111/ajad.12290] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 08/14/2015] [Accepted: 08/28/2015] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND AND OBJECTIVES To determine if the clinical course of DSM-5 alcohol use disorders (AUD) in select populations of young adults (18-30 years) differed based on gender, diagnostic severity (mild, moderate, severe), and ethnicity. METHODS Native Americans (NA) and Mexican Americans (MA) (n = 1,129) were recruited from the community and completed a structured diagnostic interview. Participants with DSM-5 AUDs were compared based on gender, severity of the disorder (mild, moderate, severe), and ethnicity for differences in drinking levels, as well as the clinical course of AUD as defined by the occurrence and sequence of 36 alcohol-related life events. RESULTS Seventy percent of the NA men, 64% of the NA women, 56% of the MA men, and 42% of the MA women met lifetime diagnostic criteria for a DSM-5 AUD. NA reported more alcohol-related life events and at an earlier age than MA. A high degree of similarity in the clinical course was found between men and women and between those with severe or moderate disorder, but not with those with mild disorder. CONCLUSIONS NA had higher drinking levels and more alcohol problems at an earlier age than MA. A similar clinical course was seen based on gender and ethnicity in these young adults, but not based on diagnostic severity. SCIENTIFIC SIGNIFICANCE The DSM-5 mild AUD category differs from the moderate and severe categories on drinking history, clinical course, gender, and ethnic distribution. Mild AUD may not be in the same clinical continuum as moderate and severe AUD in these populations.
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Affiliation(s)
- Cindy L. Ehlers
- Department of Molecular and Cellular Neurosciences, The Scripps Research Institute, La Jolla, CA
| | - Gina M. Stouffer
- Department of Molecular and Cellular Neurosciences, The Scripps Research Institute, La Jolla, CA
| | - Linda Corey
- Department of Molecular and Cellular Neurosciences, The Scripps Research Institute, La Jolla, CA
| | - David A. Gilder
- Department of Molecular and Cellular Neurosciences, The Scripps Research Institute, La Jolla, CA
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21
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Erol A, Karpyak VM. Sex and gender-related differences in alcohol use and its consequences: Contemporary knowledge and future research considerations. Drug Alcohol Depend 2015; 156:1-13. [PMID: 26371405 DOI: 10.1016/j.drugalcdep.2015.08.023] [Citation(s) in RCA: 543] [Impact Index Per Article: 60.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 08/12/2015] [Accepted: 08/13/2015] [Indexed: 01/16/2023]
Abstract
AIMS To review the contemporary evidence reflecting male/female differences in alcohol use and its consequences along with the biological (sex-related) and psycho-socio-cultural (gender-related) factors associated with those differences. METHODS MEDLINE, PubMed, Web of Science, SCOPUS, PsycINFO, and CINAHL databases were searched for relevant publications, which were subsequently screened for the presence/absence of pre-specified criteria for high quality evidence. RESULTS Compared to men, more women are lifetime abstainers, drink less, and are less likely to engage in problem drinking, develop alcohol-related disorders or alcohol withdrawal symptoms. However, women drinking excessively develop more medical problems. Biological (sex-related) factors, including differences in alcohol pharmacokinetics as well as its effect on brain function and the levels of sex hormones may contribute to some of those differences. In addition, differences in alcohol effects on behavior may also be driven by psycho-socio-cultural (gender-related) factors. This is evident by variation in the magnitude of differences in alcohol use between countries, decreasing difference in the rates of alcohol consumption in recent generations and other findings. Evidence indicates that both sex and gender-related factors are interacting with alcohol use in complex manner, which differentially impacts the risk for development of the behavioral or medical problems and alcohol use disorders in men and women. CONCLUSIONS Discovery of the mechanisms underlying biological (sex-related) as well as psycho-socio-cultural (gender-related) differences in alcohol use and related disorders is needed for development of personalized recommendations for prevention and treatment of alcohol use disorders and related problems in men and women.
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Affiliation(s)
- Almila Erol
- Department of Psychiatry, Ataturk Education and Research Hospital, Basinsitesi, Izmir 35250, Turkey; Department of Psychiatry and Psychology, Mayo Clinic, Rochester, 200 First Stret SW, Rochester, MN, 55905, USA.
| | - Victor M Karpyak
- Department of Psychiatry, Ataturk Education and Research Hospital, Basinsitesi, Izmir 35250, Turkey.
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Associations of prodynorphin sequence variation with alcohol dependence and related traits are phenotype-specific and sex-dependent. Sci Rep 2015; 5:15670. [PMID: 26502829 PMCID: PMC4621530 DOI: 10.1038/srep15670] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 10/01/2015] [Indexed: 12/17/2022] Open
Abstract
We previously demonstrated that prodynorphin (PDYN) haplotypes and single nucleotide polymorphism (SNP) rs2281285 are associated with alcohol dependence and the propensity to drink in negative emotional states, and recent studies suggest that PDYN gene effects on substance dependence risk may be sex-related. We examined sex-dependent associations of PDYN variation with alcohol dependence and related phenotypes, including negative craving, time until relapse after treatment and the length of sobriety episodes before seeking treatment, in discovery and validation cohorts of European ancestry. We found a significant haplotype-by-sex interaction (p = 0.03), suggesting association with alcohol dependence in males (p = 1E-4) but not females. The rs2281285 G allele increased risk for alcohol dependence in males in the discovery cohort (OR = 1.49, p = 0.002), with a similar trend in the validation cohort (OR = 1.35, p = 0.086). However, rs2281285 showed a trend towards association with increased negative craving in females in both the discovery (beta = 10.16, p = 0.045) and validation samples (OR = 7.11, p = 0.066). In the discovery cohort, rs2281285 was associated with time until relapse after treatment in females (HR = 1.72, p = 0.037); in the validation cohort, it was associated with increased length of sobriety episodes before treatment in males (beta = 13.49, p = 0.001). Our findings suggest that sex-dependent effects of PDYN variants in alcohol dependence are phenotype-specific.
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Gilks WP, Abbott JK, Morrow EH. Sex differences in disease genetics: evidence, evolution, and detection. Trends Genet 2014; 30:453-63. [DOI: 10.1016/j.tig.2014.08.006] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 08/27/2014] [Accepted: 08/27/2014] [Indexed: 12/13/2022]
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Zhan W, Shaboltas AV, Skochilov RV, Kozlov AP, Krasnoselskikh TV, Abdala N. Gender differences in the relationship between alcohol use and depressive symptoms in St. Petersburg, Russia. ACTA ACUST UNITED AC 2012; 3. [PMID: 23240098 DOI: 10.4172/2155-6105.1000124] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND: Gender differences in the relationship between alcohol use and depressive symptoms are inconsistent, and few studies have addressed this issue in Russia. Because this finding may have important implications for interventions to reduce alcohol misuse or alcohol related problems in Russia, we conducted a study to investigate whether the association between alcohol use and depressive symptoms differs by gender at high risk for HIV. METHODS: We used the Alcohol Use Disorders Identification Test (AUDIT) and the 10-item Center for Epidemiological Studies Depression Scale to measure alcohol use and depressive symptoms among 307 patients who attended a clinic for sexually transmitted infections in St. Petersburg, Russia. Logistic regression models were applied for the analysis. RESULTS: The comparison of data between men and women revealed a significant quadratic term of alcohol use and significant interactions between alcohol use and gender on depressive symptoms. Men with an AUDIT score in the first and fourth quartiles were more likely to report depressive symptoms in comparison to men in the second quartile. Their odds ratios (ORs) and 95% confidence intervals (CIs) were 7.54 (2.00-28.51) and 5.06 (1.31-19.63), respectively. Among women, a linear trend was observed such that those who misused alcohol were three times more likely to have depressive symptoms than those who did not misuse alcohol (OR = 3.03, 95% CI, 1.05-8.80). CONCLUSION: The association between alcohol use and depressive symptoms differed by gender. Additional research is needed to investigate this relationship in Russia. Strategies to reduce alcohol-related problems in Russia may need to consider these differences.
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Affiliation(s)
- Weihai Zhan
- Yale School of Public Health, Yale University, 60 College Street, New Haven, CT, 06520, USA
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de Moor MHM, Vink JM, van Beek JHDA, Geels LM, Bartels M, de Geus EJC, Willemsen G, Boomsma DI. Heritability of problem drinking and the genetic overlap with personality in a general population sample. Front Genet 2011; 2:76. [PMID: 22303371 PMCID: PMC3268629 DOI: 10.3389/fgene.2011.00076] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Accepted: 10/16/2011] [Indexed: 12/13/2022] Open
Abstract
This study examined the heritability of problem drinking and investigated the phenotypic and genetic relationships between problem drinking and personality. In a sample of 5,870 twins and siblings and 4,420 additional family members from the Netherlands Twin Register. Data on problem drinking (assessed with the AUDIT and CAGE; 12 items) and personality [NEO Five-Factor Inventory (FFI); 60 items] were collected in 2009/2010 by surveys. Confirmatory factor analysis on the AUDIT and CAGE items showed that the items clustered on two separate but highly correlated (r = 0.74) underlying factors. A higher-order factor was extracted that reflected those aspects of problem drinking that are common to the AUDIT and CAGE, which showed a heritability of 40%. The correlations between problem drinking and the five dimensions of personality were small but significant, ranging from 0.06 for Extraversion to −0.12 for Conscientiousness. All personality dimensions (with broad-sense heritabilities between 32 and 55%, and some evidence for non-additive genetic influences) were genetically correlated with problem drinking. The genetic correlations were small to modest (between |0.12| and |0.41|). Future studies with longitudinal data and DNA polymorphisms are needed to determine the biological mechanisms that underlie the genetic link between problem drinking and personality.
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Affiliation(s)
- Marleen H M de Moor
- Department of Biological Psychology, VU University Amsterdam Amsterdam, Netherlands
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Gizer IR, Ehlers CL, Vietan C, Seaton-Smith KL, Feiler HS, Lee JV, Segall SK, Gilder DA, Wilhelmsen KC. Linkage scan of alcohol dependence in the UCSF Family Alcoholism Study. Drug Alcohol Depend 2011; 113:125-32. [PMID: 20817416 PMCID: PMC3008755 DOI: 10.1016/j.drugalcdep.2010.07.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2009] [Revised: 04/07/2010] [Accepted: 07/03/2010] [Indexed: 11/16/2022]
Abstract
Ample data suggest that alcohol dependence represents a heritable condition, and several research groups have performed linkage analysis to identify genomic regions influencing this disorder. In the present study, a genome-wide linkage scan for alcohol dependence was conducted in a community sample of 565 probands and 1080 first-degree relatives recruited through the UCSF Family Alcoholism Study. The Semi-Structured Assessment for the Genetics of Alcoholism (SSAGA) was used to derive DSM-IV alcohol dependence diagnoses. Although no loci achieved genome-wide significance (i.e., LOD score > 3.0), several linkage peaks of interest (i.e., LOD score > 1.0) were identified. When the strict DSM-IV alcohol dependence diagnosis requiring the temporal clustering of symptoms served as the phenotype, linkage peaks were identified on chromosomes 1p36.31-p36.22, 2q37.3, 8q24.3, and 18p11.21-p11.2. When the temporal clustering of symptoms was not required, linkage peaks were again identified on chromosomes 1p36.31-p36.22 and 8q24.3 as well as novel loci on chromosomes 1p22.3, 2p24.3-p24.1, 9p24.1-p23, and 22q12.3-q13.1. Follow-up analyses were conducted by performing linkage analysis for the 12 alcohol dependence symptoms assessed by the SSAGA across the support intervals for the observed linkage peaks. These analyses demonstrated that different collections of symptoms often assessing distinct aspects of alcohol dependence (e.g., uncontrollable drinking and withdrawal vs. tolerance and drinking despite health problems) contributed to each linkage peak and often yielded LOD scores exceeding that reported for the alcohol dependence diagnosis. Such findings provide insight into how specific genomic regions may influence distinct aspects of alcohol dependence.
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Affiliation(s)
- Ian R. Gizer
- Department of Genetics, University of North Carolina, Chapel Hill, NC 27599, Bowles Center for Alcohol Studies, University of North Carolina, Chapel Hill, NC 27599
| | - Cindy L. Ehlers
- Department of Molecular and Integrative Neurosciences, The Scripps Research Institute, La Jolla, CA 92037
| | | | | | - Heidi S. Feiler
- Department of Laboratory Medicine, University of California, San Francisco, CA 94143
| | - James V. Lee
- School of Molecular and Cell Biology, University of Illinois, Urbana-Champaign, IL 61801
| | - Samantha K. Segall
- Department of Genetics, University of North Carolina, Chapel Hill, NC 27599
| | - David A. Gilder
- Department of Molecular and Integrative Neurosciences, The Scripps Research Institute, La Jolla, CA 92037
| | - Kirk C. Wilhelmsen
- Department of Genetics, University of North Carolina, Chapel Hill, NC 27599, Bowles Center for Alcohol Studies, University of North Carolina, Chapel Hill, NC 27599, Department of Neurology, Carolina Genome Center, University of North Carolina, Chapel Hill, NC 27599,Corresponding Author: Kirk C. Wilhelmsen, M.D., Ph.D., University of North Carolina at Chapel Hill, 120 Mason Farm Road, Room 5015 Genetic Medicine Building CB 7264, Chapel Hill, NC 27599-7264, Phone: Office (919) 966-1373, Fax (919) 966-3630,
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