Cited by 251Neurotransmitter Receptor Influence on BehaviorSubstance Abuse Treatment and OutcomesNeuroscience and Neuropharmacology Research

The dopamine hypothesis of drug addiction and its potential therapeutic value

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Diana, Marco·2011·Frontiers in Psychiatry

Abstract

Dopamine (DA) transmission is deeply affected by drugs of abuse, and alterations in DA function are involved in the various phases of drug addiction and potentially exploitable therapeutically. In particular, basic studies have documented a reduction in the electrophysiological activity of DA neurons in alcohol, opiate, cannabinoid, and other drug-dependent rats. Further, DA release in the Nucleus accumbens (Nacc) is decreased in virtually all drug-dependent rodents. In parallel, these studies are supported by increments in intracranial self stimulation (ICSS) thresholds during withdrawal from alcohol, nicotine, opiates, and other drugs of abuse, thereby suggesting a hypofunction of the neural substrate of ICSS. Accordingly, morphological evaluations fed into realistic computational analysis of the medium spiny neuron of the Nacc, post-synaptic counterpart of DA terminals, show profound changes in structure and function of the entire mesolimbic system. In line with these findings, human imaging studies have shown a reduction of dopamine receptors accompanied by a lesser release of endogenous DA in the ventral striatum of cocaine, heroin, and alcohol-dependent subjects, thereby offering visual proof of the "dopamine-impoverished" addicted human brain. The lasting reduction in physiological activity of the DA system leads to the idea that an increment in its activity, to restore pre-drug levels, may yield significant clinical improvements (reduction of craving, relapse, and drug-seeking/taking). In theory, it may be achieved pharmacologically and/or with novel interventions such as transcranial magnetic stimulation (TMS). Its anatomo-physiological rationale as a possible therapeutic aid in alcoholics and other addicts will be described and proposed as a theoretical framework to be subjected to experimental testing in human addicts.

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Crossref · 10.3389/fpsyt.2011.00064

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  • In animal models, precipitated opioid withdrawal decreases extracellular dopamine levels in the NAc and mesolimbic dopamine system and decreases dopamine neuron firing in the VTA.

    “In animal models, early studies showed that precipitated opioid withdrawal decreases extracellular dopamine levels in the NAc and mesolimbic dopamine system (Pothos et al., 1991;Rossetti et al., 1992) and decreases dopamine neuron firing in the VTA (Diana, 2011).”

    From Drug Addiction: Hyperkatifeia/Negative Reinforcement as a Framework for Medications Development (2021) · cites this paper as Diana, 2011

    In “Dopamine as a Possible Therapeutic Target” (page unavailable), the paper reports reduced dopamine-neuron activity after morphine withdrawal in rats. It does not specify that the opioid withdrawal was precipitated or explicitly locate that firing reduction in the VTA. The extracellular-dopamine portion of the citing sentence is attributed to other citations, not Diana (2011). (LLM, conf=0.82)

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  • Significant hyperkatifeia is associated with psychostimulant, tobacco, and cannabinoid addiction.

    “Significant hyperkatifeia is also associated with psychostimulant, tobacco, and cannabinoid addiction from the perspectives of phenotypes and neurocircuitry/neurotransmitter systems (Baker et al., 1987(Baker et al., , 2004;;Diana, 2011;Cook et al., 2015;Koob, 2015;Ashok et al., 2017).”

    From Drug Addiction: Hyperkatifeia/Negative Reinforcement as a Framework for Medications Development (2021) · cites this paper as Diana, 2011

    The Transcranial Magnetic Stimulation section (page unavailable) describes neural changes associated with psychostimulants and cannabis dependence, and Dopamine as a Possible Therapeutic Target (page unavailable) discusses dopaminergic changes after cannabinoid withdrawal. These passages support a neurocircuitry-related aspect of the claim, but they do not establish significant hyperkatifeia—a heightened negative emotional state—for psychostimulant, tobacco, and cannabinoid addiction. (LLM, conf=0.82)

    Experimental — accuracy not yet measured
  • The mesolimbic dopamine system becomes compromised after chronic administration of virtually all drugs of abuse, including opioids and alcohol.

    “Nevertheless, what is also evident is that the mesolimbic dopamine system becomes compromised after the chronic administration of virtually all drugs of abuse, including opioids and alcohol (Koob and Volkow, 2010;Diana, 2011).”

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Authors
Diana, M.
Affiliations
University of Sassari (IT)
Corresponding author
Diana, Marco
Venue
Frontiers in Psychiatry
Published
2011
Volume
2
Pages
64-64
ISSN
1664-0640 (ISSN-L)
OpenAlex
W1972562670
Cited by
251
References
93
Citations by year
2026: 6 · 2025: 35 · 2024: 10 · 2023: 23 · 2022: 18 · 2021: 18 · 2020: 20 · 2019: 22 · 2018: 14 · 2017: 11 · 2016: 16 · 2015: 12 · 2014: 22 · 2013: 10 · 2012: 14
FWCI
6.10
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Psychiatry (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • UnissResearch (Università degli Studi di Sassari) (submittedVersion)
  • UnissResearch (Università degli Studi di Sassari) (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Ministero dell’Istruzione, dell’Università e della Ricerca (2004052392)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Epidemiology › Substance Abuse Treatment and Outcomes
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
drug addiction, dopamine signaling, nucleus accumbens, intracranial self-stimulation, withdrawal, medium spiny neurons, mesolimbic system, dopamine receptors, ventral striatum, alcoholism, opioid use disorder, cocaine dependence, transcranial magnetic stimulation, craving, relapse, drug-seeking behavior

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