Alcohol Use Disorder: Neurobiology and Therapeutics

Alcohol use disorder (AUD) encompasses the dysregulation of multiple brain circuits involved in executive function leading to excessive consumption of alcohol, despite negative health and social consequences and feelings of withdrawal when access to alcohol is prevented. Ethanol exerts its toxicity...

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Main Authors: Waisley Yang, Rohit Singla, Oshin Maheshwari, Christine J. Fontaine, Joana Gil-Mohapel
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Biomedicines
Subjects:
Online Access:https://www.mdpi.com/2227-9059/10/5/1192
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author Waisley Yang
Rohit Singla
Oshin Maheshwari
Christine J. Fontaine
Joana Gil-Mohapel
author_facet Waisley Yang
Rohit Singla
Oshin Maheshwari
Christine J. Fontaine
Joana Gil-Mohapel
author_sort Waisley Yang
collection DOAJ
description Alcohol use disorder (AUD) encompasses the dysregulation of multiple brain circuits involved in executive function leading to excessive consumption of alcohol, despite negative health and social consequences and feelings of withdrawal when access to alcohol is prevented. Ethanol exerts its toxicity through changes to multiple neurotransmitter systems, including serotonin, dopamine, gamma-aminobutyric acid, glutamate, acetylcholine, and opioid systems. These neurotransmitter imbalances result in dysregulation of brain circuits responsible for reward, motivation, decision making, affect, and the stress response. Despite serious health and psychosocial consequences, this disorder still remains one of the leading causes of death globally. Treatment options include both psychological and pharmacological interventions, which are aimed at reducing alcohol consumption and/or promoting abstinence while also addressing dysfunctional behaviours and impaired functioning. However, stigma and social barriers to accessing care continue to impact many individuals. AUD treatment should focus not only on restoring the physiological and neurological impairment directly caused by alcohol toxicity but also on addressing psychosocial factors associated with AUD that often prevent access to treatment. This review summarizes the impact of alcohol toxicity on brain neurocircuitry in the context of AUD and discusses pharmacological and non-pharmacological therapies currently available to treat this addiction disorder.
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spelling doaj.art-c9500d3725274bbcbee466212f7ccdfa2023-11-23T10:12:24ZengMDPI AGBiomedicines2227-90592022-05-01105119210.3390/biomedicines10051192Alcohol Use Disorder: Neurobiology and TherapeuticsWaisley Yang0Rohit Singla1Oshin Maheshwari2Christine J. Fontaine3Joana Gil-Mohapel4Island Medical Program, Faculty of Medicine, University of British Columbia, Victoria, BC V8P 5C2, CanadaIsland Medical Program, Faculty of Medicine, University of British Columbia, Victoria, BC V8P 5C2, CanadaPsychiatry Residency Program, Faculty of Medicine, University of British Columbia, Victoria, BC V8W 3P5, CanadaDivision of Medical Sciences, University of Victoria, Victoria, BC V8W 2Y2, CanadaIsland Medical Program, Faculty of Medicine, University of British Columbia, Victoria, BC V8P 5C2, CanadaAlcohol use disorder (AUD) encompasses the dysregulation of multiple brain circuits involved in executive function leading to excessive consumption of alcohol, despite negative health and social consequences and feelings of withdrawal when access to alcohol is prevented. Ethanol exerts its toxicity through changes to multiple neurotransmitter systems, including serotonin, dopamine, gamma-aminobutyric acid, glutamate, acetylcholine, and opioid systems. These neurotransmitter imbalances result in dysregulation of brain circuits responsible for reward, motivation, decision making, affect, and the stress response. Despite serious health and psychosocial consequences, this disorder still remains one of the leading causes of death globally. Treatment options include both psychological and pharmacological interventions, which are aimed at reducing alcohol consumption and/or promoting abstinence while also addressing dysfunctional behaviours and impaired functioning. However, stigma and social barriers to accessing care continue to impact many individuals. AUD treatment should focus not only on restoring the physiological and neurological impairment directly caused by alcohol toxicity but also on addressing psychosocial factors associated with AUD that often prevent access to treatment. This review summarizes the impact of alcohol toxicity on brain neurocircuitry in the context of AUD and discusses pharmacological and non-pharmacological therapies currently available to treat this addiction disorder.https://www.mdpi.com/2227-9059/10/5/1192addictionalcoholalcohol use disorderneurotransmitterpharmacological therapynon-pharmacological intervention
spellingShingle Waisley Yang
Rohit Singla
Oshin Maheshwari
Christine J. Fontaine
Joana Gil-Mohapel
Alcohol Use Disorder: Neurobiology and Therapeutics
Biomedicines
addiction
alcohol
alcohol use disorder
neurotransmitter
pharmacological therapy
non-pharmacological intervention
title Alcohol Use Disorder: Neurobiology and Therapeutics
title_full Alcohol Use Disorder: Neurobiology and Therapeutics
title_fullStr Alcohol Use Disorder: Neurobiology and Therapeutics
title_full_unstemmed Alcohol Use Disorder: Neurobiology and Therapeutics
title_short Alcohol Use Disorder: Neurobiology and Therapeutics
title_sort alcohol use disorder neurobiology and therapeutics
topic addiction
alcohol
alcohol use disorder
neurotransmitter
pharmacological therapy
non-pharmacological intervention
url https://www.mdpi.com/2227-9059/10/5/1192
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AT rohitsingla alcoholusedisorderneurobiologyandtherapeutics
AT oshinmaheshwari alcoholusedisorderneurobiologyandtherapeutics
AT christinejfontaine alcoholusedisorderneurobiologyandtherapeutics
AT joanagilmohapel alcoholusedisorderneurobiologyandtherapeutics