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Guiraud J, Spanagel R, van den Brink W. Substitution therapy for patients with alcohol dependence: Mechanisms of action and efficacy. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2024; 175:187-239. [PMID: 38555116 DOI: 10.1016/bs.irn.2024.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
New approaches for the treatment of alcohol dependence (AD) may improve patient outcomes. Substitution maintenance therapy is one of the most effective treatment options for opioid and nicotine use disorders. So far, there has been little attention to substitution therapy for the treatment of AD. Here, we explain the mechanistic foundations of alcohol substitution maintenance therapy. Alcohol has many primary targets in the brain (and other organs) and the physical interaction of ethanol molecules with these specific ethanol-sensitive sites on a variety of ionotropic receptors (e.g. GABA-A, NMDA, and nicotinic acetylcholine (nACh) receptors) and ion channels provides the rationale for substitution. As such, a variety of compounds can interact with those ethanol-sensitive sites and can thus substitute for some of the effects of alcohol. For some of these compounds, alcohol discrimination studies have shown their substitution potential. Accordingly, potential substitution treatments include agonists acting at GABA receptors such as sodium oxybate, baclofen and benzodiazepines, NMDA receptor antagonists such as ketamine and memantine, or nAChRs agonists such as varenicline. All these compounds are already approved for other indications and we present clinical evidence for these drugs in the treatment of alcohol withdrawal syndrome (AWS) and in the long-term treatment of AD, and outline future steps for their acceptance as substitution treatment in AD. Finally, we discuss the substitution approach of managed alcohol programs for the most severely affected homeless populations. Results showed that sodium oxybate is probably the closest to a substitution therapy for AD and is already approved for the treatment of AWS and in the long-term treatment of AD in some countries. In conclusion, we argue that better AD treatment can be provided if substitution maintenance treatments for alcohol are implemented at a similar scale as for opioid and nicotine use disorder.
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Affiliation(s)
- Julien Guiraud
- Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, Department of Psychiatry, Amsterdam Neuroscience, Amsterdam, The Netherlands; Vergio, Clichy, France.
| | - Rainer Spanagel
- Institute of Psychopharmacology, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Wim van den Brink
- Amsterdam UMC, Location Academic Medical Center, University of Amsterdam, Department of Psychiatry, Amsterdam Neuroscience, Amsterdam, The Netherlands
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2
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Giorgetti A, Busardò FP, Giorgetti R. Toxicological Characterization of GHB as a Performance-Enhancing Drug. Front Psychiatry 2022; 13:846983. [PMID: 35509886 PMCID: PMC9058118 DOI: 10.3389/fpsyt.2022.846983] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 02/25/2022] [Indexed: 11/13/2022] Open
Abstract
Performance-enhancing drugs (PEDs) are represented by several compounds used to ameliorate the image, the appearance, or an athletic or non-athletic performance. Gamma-hydroxybutyrate (GHB) is an endogenous molecule first used as anesthetic and then marketed as a nutritional supplement with a wide diffusion in the bodybuilding community. The aim of the present work is to provide a toxicological characterization of the use of GHB as a PED, including the scientific basis for its use, the patterns of use/abuse, and the health risks arising from its consumption in this peculiar recreative setting. A literature search was performed on multiple databases including experimental studies on humans and animals as well as epidemiological reports and forensic case reports/series. Experimental studies demonstrated that the use of GHB as a PED is motivated by the release of growth hormone and the induction of sleep. However, the panel of desired performance-related effects was much wider in real cases and epidemiological studies. Even though the use of GHB among bodybuilders has decreased, its use to enhance some kind of performance, particularly sexual ones or social-communicative ones, as well as means to increase mood and perceived energy, is still common.
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Affiliation(s)
- Arianna Giorgetti
- Unit of Legal Medicine, Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Francesco Paolo Busardò
- Department of Excellence of Biomedical Sciences and Public Health, "Politecnica delle Marche" University of Ancona, Ancona, Italy
| | - Raffaele Giorgetti
- Department of Excellence of Biomedical Sciences and Public Health, "Politecnica delle Marche" University of Ancona, Ancona, Italy
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3
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Guiraud J, Addolorato G, Aubin HJ, Batel P, de Bejczy A, Caputo F, Goudriaan AE, Gual A, Lesch O, Maremmani I, Perney P, Poulnais R, Raffaillac Q, Soderpalm B, Spanagel R, Walter H, van den Brink W. Treating alcohol dependence with an abuse and misuse deterrent formulation of sodium oxybate: Results of a randomised, double-blind, placebo-controlled study. Eur Neuropsychopharmacol 2021; 52:18-30. [PMID: 34237655 DOI: 10.1016/j.euroneuro.2021.06.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 06/03/2021] [Accepted: 06/07/2021] [Indexed: 01/20/2023]
Abstract
Sodium oxybate (SMO) has been approved in Italy and Austria for the maintenance of abstinence in alcohol dependent (AD) patients. Although SMO is well tolerated in AD patients, cases of abuse and misuse have been reported outside the therapeutic setting. Here we report on a phase IIb double-blind, randomized, placebo-controlled trial for the maintenance of abstinence in AD patients with a new abuse and misuse deterrent formulation of SMO. A total of 509 AD patients were randomized to 12 weeks of placebo or one of four SMO doses (0.75, 1.25, 1.75 or 2.25 g t.i.d.) followed by a one-week medication-free period. The primary endpoint was the percentage of days abstinent (PDA) at end of treatment. An unexpectedly high placebo response (mean 73%, median 92%) was observed. This probably compromised the demonstration of efficacy in the PDA, but several secondary endpoints showed statistically significant improvements. A post-hoc subgroup analysis based on baseline severity showed no improvements in the mild group, but statistically significant improvements in the severe group: PDA: mean difference +15%, Cohen's d = 0.42; abstinence: risk difference +18%, risk ratio = 2.22. No safety concerns were reported. Although the primary endpoint was not significant in the overall population, several secondary endpoints were significant in the intent-to-treat population and post-hoc results showed that treatment with SMO was associated with a significant improvement in severe AD patients which is consistent with previous findings. New trials are warranted that take baseline severity into consideration.
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Affiliation(s)
- Julien Guiraud
- Amsterdam UMC, University of Amsterdam, Department of Psychiatry, Amsterdam Neuroscience, Meibergdreef 5, Amsterdam, Netherlands; D&A Pharma, Paris, France.
| | - Giovanni Addolorato
- Alcohol Use Disorder and Alcohol Related Disease Unit, Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A.Gemelli IRCCS, Rome, Italy; Internal Medicine Unit, Columbus-Gemelli Hospital, Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A.Gemelli IRCCS, Rome, Italy
| | - Henri-Jean Aubin
- French Institute of Health and Medical Research (Inserm), Centre de Recherche en Epidémiologie et Santé des Populations (CESP), Paris, France; Addiction Research and Treatment Center, Paul Brousse Hospital, Paris-Sud University, Villejuif, France
| | - Philippe Batel
- Addiction unit of Charente, Camille Claudel Hospital, 16400 La Couronne, France
| | - Andrea de Bejczy
- Section of Psychiatry and Neurochemistry Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Sweden
| | - Fabio Caputo
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; Center for the Study and Treatment of Alcohol-Related Diseases, Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; Center for the Study and Treatment of Chronic Inflammatory Bowel Diseases (IBD) and Gastroenterological Manifestations of Rare Diseases, Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; Department of Internal Medicine, Santissima Annunziata Hospital, Cento (Ferrara), University of Ferrara, 44042 Ferrara, Italy
| | - Anna E Goudriaan
- Amsterdam University Medical Centers, University of Amsterdam, Department of Psychiatry, Amsterdam Neuroscience, Amsterdam, Netherlands; Arkin, Dept. of Research and Quality of Care, Amsterdam, Netherlands, & Amsterdam Public Health Research Institute, Netherlands
| | - Antoni Gual
- Psychiatry Department, Neurosciences Institute, Hospital Clinic, IDIBAPS, Barcelona, Spain
| | - Otto Lesch
- Department of Social Psychiatry, Medical University Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Icro Maremmani
- Santa Chiara University Hospital, University of Pisa, Italy
| | - Pascal Perney
- Addiction Medicine, Hospital Grau-du-Roi, Nimes, France
| | | | | | - Bo Soderpalm
- Section of Psychiatry and Neurochemistry Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Sweden
| | - Rainer Spanagel
- Institute of Psychopharmacology, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Germany
| | - Henriette Walter
- Department of Social Psychiatry, Medical University Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Wim van den Brink
- Amsterdam University Medical Centers, University of Amsterdam, Department of Psychiatry, Amsterdam Neuroscience, Amsterdam, Netherlands
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4
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Addolorato G, Lesch OM, Maremmani I, Walter H, Nava F, Raffaillac Q, Caputo F. Post-marketing and clinical safety experience with sodium oxybate for the treatment of alcohol withdrawal syndrome and maintenance of abstinence in alcohol-dependent subjects. Expert Opin Drug Saf 2019; 19:159-166. [DOI: 10.1080/14740338.2020.1709821] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Giovanni Addolorato
- Alcohol Use Disorder Unit, Division of Internal Medicine, Gastroenterology and Hepatology Unit, Catholic University of Rome, A. Gemelli Hospital, Rome, Italy
- Fondazione Policlinico Universitario A Gemelli IRCCS, Rome, Italy
| | - Otto-Michael Lesch
- Addiction Medicine, University for Psychiatry and Psychotherapy, Vienna, Austria
| | - Icro Maremmani
- Santa Chiara University Hospital, University of Pisa, Pisa, Italy
| | - Henriette Walter
- Addiction Medicine, University for Psychiatry and Psychotherapy, Vienna, Austria
| | - Felice Nava
- Penitentiary Medicine and Drug Abuse Unit, Public Health Service Padua, Padua, Italy
| | | | - Fabio Caputo
- Department of Internal Medicine, SS Annunziata Hospital, University of Ferrara, Cento (Ferrara), Italy
- “G. Fontana” Centre for the Study and Multidisciplinary Treatment of Alcohol Addiction, Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
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5
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Dornbierer DA, Boxler M, Voegel CD, Stucky B, Steuer AE, Binz TM, Baumgartner MR, Baur DM, Quednow BB, Kraemer T, Seifritz E, Landolt HP, Bosch OG. Nocturnal Gamma-Hydroxybutyrate Reduces Cortisol-Awakening Response and Morning Kynurenine Pathway Metabolites in Healthy Volunteers. Int J Neuropsychopharmacol 2019; 22:631-639. [PMID: 31504554 PMCID: PMC6822136 DOI: 10.1093/ijnp/pyz047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 08/03/2019] [Accepted: 08/27/2019] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Gamma-hydroxybutyrate (GHB; or sodium oxybate) is an endogenous GHB-/gamma-aminobutyric acid B receptor agonist. It is approved for application in narcolepsy and has been proposed for the potential treatment of Alzheimer's disease, Parkinson's disease, fibromyalgia, and depression, all of which involve neuro-immunological processes. Tryptophan catabolites (TRYCATs), the cortisol-awakening response (CAR), and brain-derived neurotrophic factor (BDNF) have been suggested as peripheral biomarkers of neuropsychiatric disorders. GHB has been shown to induce a delayed reduction of T helper and natural killer cell counts and alter basal cortisol levels, but GHB's effects on TRYCATs, CAR, and BDNF are unknown. METHODS Therefore, TRYCAT and BDNF serum levels, as well as CAR and the affective state (Positive and Negative Affect Schedule [PANAS]) were measured in the morning after a single nocturnal dose of GHB (50 mg/kg body weight) in 20 healthy male volunteers in a placebo-controlled, balanced, randomized, double-blind, cross-over design. RESULTS In the morning after nocturnal GHB administration, the TRYCATs indolelactic acid, kynurenine, kynurenic acid, 3-hydroxykynurenine, and quinolinic acid; the 3-hydroxykynurenine to kynurenic acid ratio; and the CAR were significantly reduced (P < 0.05-0.001, Benjamini-Hochberg corrected). The quinolinic acid to kynurenic acid ratio was reduced by trend. Serotonin, tryptophan, and BDNF levels, as well as PANAS scores in the morning, remained unchanged after a nocturnal GHB challenge. CONCLUSIONS GHB has post-acute effects on peripheral biomarkers of neuropsychiatric disorders, which might be a model to explain some of its therapeutic effects in disorders involving neuro-immunological pathologies. This study was registered at ClinicalTrials.gov as NCT02342366.
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Affiliation(s)
- D A Dornbierer
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Zurich, Switzerland,Department of Forensic Pharmacology and Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, Zurich, Switzerland,Sleep & Health Zurich, University Center of Competence, University of Zurich, Zurich, Switzerland,Correspondence: Dario A. Dornbierer, MSc, Experimental and Clinical Pharmacopsychology, Department of Psychiatry, Psychotherapy and Psychosomatics Psychiatric Hospital, University of Zurich Lenggstrasse 31, CH-8032 Zurich, Switzerland ()
| | - M Boxler
- Department of Forensic Pharmacology and Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, Zurich, Switzerland
| | - C D Voegel
- Center for Forensic Hair Analytics, Zurich Institute of Forensic Medicine, University of Zurich, Zurich, Switzerland
| | - B Stucky
- Institute of Pharmacology and Toxicology, University of Zurich, Zurich, Switzerland,Sleep & Health Zurich, University Center of Competence, University of Zurich, Zurich, Switzerland
| | - A E Steuer
- Department of Forensic Pharmacology and Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, Zurich, Switzerland
| | - T M Binz
- Center for Forensic Hair Analytics, Zurich Institute of Forensic Medicine, University of Zurich, Zurich, Switzerland
| | - M R Baumgartner
- Center for Forensic Hair Analytics, Zurich Institute of Forensic Medicine, University of Zurich, Zurich, Switzerland
| | - D M Baur
- Institute of Pharmacology and Toxicology, University of Zurich, Zurich, Switzerland,Sleep & Health Zurich, University Center of Competence, University of Zurich, Zurich, Switzerland
| | - B B Quednow
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Zurich, Switzerland,Neuroscience Center Zurich, University Zurich and Swiss Federal Institute of Technology, Zurich, Switzerland
| | - T Kraemer
- Department of Forensic Pharmacology and Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, Zurich, Switzerland
| | - E Seifritz
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Zurich, Switzerland,Sleep & Health Zurich, University Center of Competence, University of Zurich, Zurich, Switzerland,Neuroscience Center Zurich, University Zurich and Swiss Federal Institute of Technology, Zurich, Switzerland
| | - H P Landolt
- Institute of Pharmacology and Toxicology, University of Zurich, Zurich, Switzerland,Sleep & Health Zurich, University Center of Competence, University of Zurich, Zurich, Switzerland,Neuroscience Center Zurich, University Zurich and Swiss Federal Institute of Technology, Zurich, Switzerland
| | - O G Bosch
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Zurich, Switzerland
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6
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GHB receptors - a new trend in psychopharmacology? CURRENT PROBLEMS OF PSYCHIATRY 2019. [DOI: 10.2478/cpp-2018-0023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Introduction: Gamma-hydroxybutyric acid (GHB) is commonly known as a recreation drug or the so-called “date rape drug”. It is also used in medicine to treat narcolepsy and alcohol addiction. GHB has an affinity for two types of receptors: GABAB and the relatively recently discovered GHB receptors. GHB receptors were first cloned in 2003 in mice and then in 2007 in humans. So far, evidence has been presented for their impact on dopaminergic transmission, which may imply that they play a role in the pathogenesis of diseases such as schizophrenia. At the same time, it has been demonstrated that benzamide antipsychotic drugs have an affinity for GHB receptors, which is why it is postulated that some of the effects of these drugs may result precisely from this affinity.
Aim: The study presents the current state of knowledge about GHB receptors and their potential role in the pathogenesis of schizophrenia, and discusses drugs which show an affinity for this receptor.
Material and method: The literature review was based on a search of articles indexed between 1965 and 2018 in Medline, Google Scholar, ScienceDirect and Research Gate databases. The following search terms were used: GHB receptor, GHB, sulpiride, and amisulpride.
Result and discussion: 1. It is possible that GHB receptors are involved in the pathogenesis of schizophrenia, although more research is needed in this area. 2. Part of the effects of some benzamide antipsychotic drugs (such as amisulpride) may be due to their affinity for GHB receptors.
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7
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Krook JT, Duperreault E, Newton D, Ross MS, Hamilton TJ. Repeated ethanol exposure increases anxiety-like behaviour in zebrafish during withdrawal. PeerJ 2019; 7:e6551. [PMID: 30842911 PMCID: PMC6397752 DOI: 10.7717/peerj.6551] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 02/01/2019] [Indexed: 11/20/2022] Open
Abstract
Zebrafish (Danio rerio) are quickly becoming an important model organism in behavioural neuroscience and drug addiction research. Conditioned place preference studies show that drugs of abuse produce responses in zebrafish that are similar to mammalian animal models. Repeated administration of ethanol in zebrafish results in withdrawal-induced behavioural responses that vary with dose and exposure duration, requiring additional investigation. Here, we examine the effects of ethanol withdrawal on anxiety-like behaviours in adult zebrafish after a 21-day ethanol dosing schedule at either 0.4% or 0.8%. Anxiety-like behaviour was measured with the novel object approach test; this test involves placing a fish in a circular arena with a novel object in the centre and observing the amount of exploration of the object. We found increased anxiety-like behaviour during ethanol withdrawal. This study adds to the growing body of literature that validates the zebrafish as a model organism in the field of behavioural neuroscience and addiction.
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Affiliation(s)
- Jeffrey T Krook
- Department of Psychology, MacEwan University, Edmonton, AB, Canada
| | | | - Dustin Newton
- Department of Psychology, MacEwan University, Edmonton, AB, Canada
| | - Matthew S Ross
- Department of Physical Sciences, MacEwan University, Edmonton, AB, Canada
| | - Trevor J Hamilton
- Department of Psychology, MacEwan University, Edmonton, AB, Canada.,Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
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8
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Bosch OG, Eisenegger C, Gertsch J, von Rotz R, Dornbierer D, Gachet MS, Heinrichs M, Wetter TC, Seifritz E, Quednow BB. Gamma-hydroxybutyrate enhances mood and prosocial behavior without affecting plasma oxytocin and testosterone. Psychoneuroendocrinology 2015. [PMID: 26209926 DOI: 10.1016/j.psyneuen.2015.07.167] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Gamma-hydroxybutyrate (GHB) is a GHB-/GABAB-receptor agonist. Reports from GHB abusers indicate euphoric, prosocial, and empathogenic effects of the drug. We measured the effects of GHB on mood, prosocial behavior, social and non-social cognition and assessed potential underlying neuroendocrine mechanisms. GHB (20mg/kg) was tested in 16 healthy males, using a randomized, placebo-controlled, cross-over design. Subjective effects on mood were assessed by visual-analogue-scales and the GHB-Specific-Questionnaire. Prosocial behavior was examined by the Charity Donation Task, the Social Value Orientation test, and the Reciprocity Task. Reaction time, memory, empathy, and theory-of-mind were also tested. Blood plasma levels of GHB, oxytocin, testosterone, progesterone, dehydroepiandrosterone (DHEA), cortisol, aldosterone, and adrenocorticotropic-hormone (ACTH) were determined. GHB showed stimulating and sedating effects, and elicited euphoria, disinhibition, and enhanced vitality. In participants with low prosociality, the drug increased donations and prosocial money distributions. In contrast, social cognitive abilities such as emotion recognition, empathy, and theory-of-mind, and basal cognitive functions were not affected. GHB increased plasma progesterone, while oxytocin and testosterone, cortisol, aldosterone, DHEA, and ACTH levels remained unaffected. GHB has mood-enhancing and prosocial effects without affecting social hormones such as oxytocin and testosterone. These data suggest a potential involvement of GHB-/GABAB-receptors and progesterone in mood and prosocial behavior.
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Affiliation(s)
- Oliver G Bosch
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Lenggstrasse 31, 8032 Zurich, Switzerland.
| | - Christoph Eisenegger
- Department of Basic Psychological Research and Research Methods, Faculty of Psychology, University of Vienna, Liebiggasse 5, 1010 Vienna, Austria
| | - Jürg Gertsch
- Institute of Biochemistry and Molecular Medicine, University of Bern, Bühlstrasse 28, 3012 Bern, Switzerland
| | - Robin von Rotz
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Lenggstrasse 31, 8032 Zurich, Switzerland
| | - Dario Dornbierer
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Lenggstrasse 31, 8032 Zurich, Switzerland
| | - M Salomé Gachet
- Institute of Biochemistry and Molecular Medicine, University of Bern, Bühlstrasse 28, 3012 Bern, Switzerland
| | - Markus Heinrichs
- Department of Psychology, Albert-Ludwigs-University of Freiburg, Stefan-Meier-Strasse 8, 79104 Freiburg i. Br., Germany
| | - Thomas C Wetter
- Department of Psychiatry and Psychotherapy, University of Regensburg, Universitätsstraße 84, 93053 Regensburg, Germany
| | - Erich Seifritz
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Lenggstrasse 31, 8032 Zurich, Switzerland
| | - Boris B Quednow
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Lenggstrasse 31, 8032 Zurich, Switzerland
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9
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Gould T, Chen L, Emri Z, Pirttimaki T, Errington AC, Crunelli V, Parri HR. GABA(B) receptor-mediated activation of astrocytes by gamma-hydroxybutyric acid. Philos Trans R Soc Lond B Biol Sci 2015; 369:20130607. [PMID: 25225100 PMCID: PMC4173292 DOI: 10.1098/rstb.2013.0607] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The gamma-aminobutyric acid (GABA) metabolite gamma-hydroxybutyric acid (GHB) shows a variety of behavioural effects when administered to animals and humans, including reward/addiction properties and absence seizures. At the cellular level, these actions of GHB are mediated by activation of neuronal GABAB receptors (GABABRs) where it acts as a weak agonist. Because astrocytes respond to endogenous and exogenously applied GABA by activation of both GABAA and GABABRs, here we investigated the action of GHB on astrocytes on the ventral tegmental area (VTA) and the ventrobasal (VB) thalamic nucleus, two brain areas involved in the reward and proepileptic action of GHB, respectively, and compared it with that of the potent GABABR agonist baclofen. We found that GHB and baclofen elicited dose-dependent (ED50: 1.6 mM and 1.3 µM, respectively) transient increases in intracellular Ca2+ in VTA and VB astrocytes of young mice and rats, which were accounted for by activation of their GABABRs and mediated by Ca2+ release from intracellular store release. In contrast, prolonged GHB and baclofen exposure caused a reduction in spontaneous astrocyte activity and glutamate release from VTA astrocytes. These findings have key (patho)physiological implications for our understanding of the addictive and proepileptic actions of GHB.
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Affiliation(s)
- Timothy Gould
- Neuroscience Division, School of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, UK
| | - Lixin Chen
- Neuroscience Division, School of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, UK
| | - Zsuzsa Emri
- Neuroscience Division, School of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, UK
| | - Tiina Pirttimaki
- School of Life and Health Sciences, Aston University, Birmingham B4 7ET, UK
| | - Adam C Errington
- Neuroscience Division, School of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, UK
| | - Vincenzo Crunelli
- Neuroscience Division, School of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, UK
| | - H Rheinallt Parri
- School of Life and Health Sciences, Aston University, Birmingham B4 7ET, UK
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10
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Kapitány-Fövény M, Mervó B, Corazza O, Kökönyei G, Farkas J, Urbán R, Zacher G, Demetrovics Z. Enhancing sexual desire and experience: an investigation of the sexual correlates of gamma-hydroxybutyrate (GHB) use. Hum Psychopharmacol 2015. [PMID: 26216563 DOI: 10.1002/hup.2491] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVE Various studies have dealt with gamma-hydroxybutyrate's (GHB) potential role in sexual assaults, while the sexual correlates of intentional recreational GHB use have not well been highlighted. Our study aims to explore GHB's sexual effects, the patterns of choice of sexual partners, the frequency of experienced blackouts, and endured sexual or acquisitory crimes as a result of GHB use. METHODS Sixty recreational GHB users filled out a questionnaire on experienced subjective, somatic, and sexual effects of GHB, the frequency of blackouts due to their GHB use, and items on their sexual experiences in relation to GHB use. RESULTS Of the sample, 25.9% reported increased sexual arousal as well as more intense attraction towards their sexual partners and increased sexual openness when using GHB; 34.8% had sexual intercourse with strangers, or with others, but not with their partners when using GHB; and 8.6% were victims of acquisitory crimes, whereas 3.4% were victims of a sexual assault. Furthermore, 24.6% typically experienced blackouts when using GHB. CONCLUSION Gamma-hydroxybutyrate seems to be a potential substitute for both stimulant and depressant substances. Increased sexual desire and disinhibition may lead to a more frequent and potentially more riskful sexual activity. Experienced blackouts need to be considered as risk factors for suffering sexual or acquisitory crimes.
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Affiliation(s)
- Máté Kapitány-Fövény
- Institute of Psychology, Eötvös Loránd University, Budapest, Hungary.,Doctoral School of Psychology, Eötvös Loránd University, Budapest, Hungary.,Nyírő Gyula Hospital Drug Outpatient and Prevention Center, Budapest, Hungary.,Faculty of Health Sciences, Semmelweis University, Budapest, Hungary
| | - Barbara Mervó
- Institute of Psychology, Eötvös Loránd University, Budapest, Hungary.,Doctoral School of Psychology, Eötvös Loránd University, Budapest, Hungary
| | - Ornella Corazza
- School of Health and Medical Sciences, University of Hertfordshire, Hatfield, UK
| | - Gyöngyi Kökönyei
- Institute of Psychology, Eötvös Loránd University, Budapest, Hungary
| | - Judit Farkas
- Institute of Psychology, Eötvös Loránd University, Budapest, Hungary.,Doctoral School of Psychology, Eötvös Loránd University, Budapest, Hungary.,Nyírő Gyula Hospital Drug Outpatient and Prevention Center, Budapest, Hungary
| | - Róbert Urbán
- Institute of Psychology, Eötvös Loránd University, Budapest, Hungary
| | - Gábor Zacher
- Emergency Ward, Military Hospital State Health Centre, Budapest, Hungary
| | - Zsolt Demetrovics
- Institute of Psychology, Eötvös Loránd University, Budapest, Hungary
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Mirijello A, D’Angelo C, Ferrulli A, Vassallo G, Antonelli M, Caputo F, Leggio L, Gasbarrini A, Addolorato G. Identification and management of alcohol withdrawal syndrome. Drugs 2015; 75:353-65. [PMID: 25666543 PMCID: PMC4978420 DOI: 10.1007/s40265-015-0358-1] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Symptoms of alcohol withdrawal syndrome (AWS) may develop within 6-24 h after the abrupt discontinuation or decrease of alcohol consumption. Symptoms can vary from autonomic hyperactivity and agitation to delirium tremens. The gold-standard treatment for AWS is with benzodiazepines (BZDs). Among the BZDs, different agents (i.e., long-acting or short-acting) and different regimens (front-loading, fixed-dose or symptom-triggered) may be chosen on the basis of patient characteristics. Severe withdrawal could require ICU admission and the use of barbiturates or propofol. Other drugs, such as α2-agonists (clonidine and dexmetedomidine) and β-blockers can be used as adjunctive treatments to control neuroautonomic hyperactivity. Furthermore, neuroleptic agents can help control hallucinations. Finally, other medications for the treatment for AWS have been investigated with promising results. These include carbamazepine, valproate, sodium oxybate, baclofen, gabapentin and topiramate. The usefulness of these agents are discussed.
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Affiliation(s)
- Antonio Mirijello
- Alcohol Use Disorders Unit, Department of Internal Medicine, Gemelli Hospital, Catholic University of Rome, Rome, Italy
| | - Cristina D’Angelo
- Alcohol Use Disorders Unit, Department of Internal Medicine, Gemelli Hospital, Catholic University of Rome, Rome, Italy
| | - Anna Ferrulli
- Alcohol Use Disorders Unit, Department of Internal Medicine, Gemelli Hospital, Catholic University of Rome, Rome, Italy
| | - Gabriele Vassallo
- Alcohol Use Disorders Unit, Department of Internal Medicine, Gemelli Hospital, Catholic University of Rome, Rome, Italy
| | - Mariangela Antonelli
- Alcohol Use Disorders Unit, Department of Internal Medicine, Gemelli Hospital, Catholic University of Rome, Rome, Italy
| | - Fabio Caputo
- Department of Internal Medicine, SS Annunziata Hospital, Cento, Ferrara, Italy
- Department of Clinical Medicine, “G. Fontana” Centre for the Study and Multidisciplinary Treatment of Alcohol Addiction, University of Bologna, Bologna, Italy
| | - Lorenzo Leggio
- Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, Laboratory of Clinical and Translational Studies, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
- Intramural Research Program, National Institute on Drug Abuse, National Institutes of Health, Baltimore, MD, USA
- Center for Alcohol and Addiction Studies, Department of Behavioral and Social Sciences, Brown University, Providence, RI, USA
| | - Antonio Gasbarrini
- Alcohol Use Disorders Unit, Department of Internal Medicine, Gemelli Hospital, Catholic University of Rome, Rome, Italy
| | - Giovanni Addolorato
- Alcohol Use Disorders Unit, Department of Internal Medicine, Gemelli Hospital, Catholic University of Rome, Rome, Italy
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Klein C, Mathis C, Leva G, Patte-Mensah C, Cassel JC, Maitre M, Mensah-Nyagan AG. γ-Hydroxybutyrate (Xyrem) ameliorates clinical symptoms and neuropathology in a mouse model of Alzheimer's disease. Neurobiol Aging 2015; 36:832-44. [DOI: 10.1016/j.neurobiolaging.2014.10.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 10/02/2014] [Accepted: 10/07/2014] [Indexed: 10/24/2022]
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Caputo F, Skala K, Mirijello A, Ferrulli A, Walter H, Lesch O, Addolorato G. Sodium oxybate in the treatment of alcohol withdrawal syndrome: a randomized double-blind comparative study versus oxazepam. The GATE 1 trial. CNS Drugs 2014; 28:743-52. [PMID: 24996524 DOI: 10.1007/s40263-014-0183-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Benzodiazepines (BDZs) are the gold standard in the treatment of alcohol withdrawal syndrome (AWS). Sodium oxybate (SMO) has been tested as a treatment for AWS with encouraging results. The aim of this phase IV, multicenter, randomized, double-blind, double-dummy study was to evaluate the efficacy of SMO in comparison with oxazepam in the treatment of uncomplicated AWS. METHODS Alcohol-dependent outpatients (n = 126) affected by uncomplicated AWS according to the Clinical Institute Withdrawal Assessment for Alcohol-revised (CIWA-Ar) scale were enrolled in the study and randomized in two groups: 61 patients received SMO and 65 patients received oxazepam for 10 days. The primary endpoint was the reduction of symptoms of AWS measured by the change in the total CIWA-Ar score from baseline (day 1) to the end of the study (day 10). This study is registered with ClinicalTrials.gov, number: NCT02090504 RESULTS: A significant decrease of the mean total CIWA-Ar score from baseline to the end of the study was found in both the SMO (p < 0.0001) and the oxazepam group (p < 0.0001), with no significant differences between the two treatments (p = 0.21). Treatment with SMO and oxazepam resulted in a marked decrease in the severity of the mean CIWA subscales, i.e. sweating, tremor, and anxiety, with no significant differences between the two treatments. Both drugs were well tolerated and no severe side effects were reported. CONCLUSION SMO is as effective as oxazepam, one of the gold standard BDZs, in the treatment of uncomplicated AWS. Due to its tolerability and absence of significant side effects, SMO may be considered a valid alternative choice in the treatment of AWS.
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Affiliation(s)
- Fabio Caputo
- Department of Internal Medicine, SS Annunziata Hospital, Cento, Ferrara, Italy
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Sodium Oxybate: A Review of Its Use in Alcohol Withdrawal Syndrome and in the Maintenance of Abstinence in Alcohol Dependence. Clin Drug Investig 2013; 34:63-80. [DOI: 10.1007/s40261-013-0158-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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15
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Skala K, Caputo F, Mirijello A, Vassallo G, Antonelli M, Ferrulli A, Walter H, Lesch O, Addolorato G. Sodium oxybate in the treatment of alcohol dependence: from the alcohol withdrawal syndrome to the alcohol relapse prevention. Expert Opin Pharmacother 2013; 15:245-57. [DOI: 10.1517/14656566.2014.863278] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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16
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Cooper E, Vernon J. The effectiveness of pharmacological approaches in the treatment of alcohol withdrawal syndrome (AWS): a literature review. J Psychiatr Ment Health Nurs 2013; 20:601-12. [PMID: 22989012 DOI: 10.1111/j.1365-2850.2012.01958.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Mortality statistics for excessive alcohol consumption show no signs of abatement, with a report published in 2011 from the World Health Organization (WHO) estimating that 2.5 million people worldwide died because of their alcohol consumption. Serious physiological, psychological, social and legal problems are thought to affect many more. Alcohol withdrawal syndrome (AWS) is a potentially life-threatening condition that often occurs in those individuals who significantly reduce or stop their intake after a prolonged and excessive period of drinking. Pharmacological treatment of the AWS has traditionally been undertaken by the use of the benzodiazepines, but recent years have witnessed the emergence of several alternatives. The aim of this paper was (1) to review the evidence base supporting the use of various pharmacological agents currently employed to treat AWS, and (2) to consider the efficacy and safety of the emerging alternatives to the benzodiazepines. The Cochrane Database of Systematic Reviews, CINAHL, Embase, PsycINFO, MEDLINE and BNI databases were extensively searched in order to retrieve the maximum number of relevant articles. Reference lists from relevant literature were also used to identify other potential studies for inclusion. All studies concerned with measuring the efficacy and safety of the various pharmacological treatment options for AWS were considered and a total of 63 trials were included in this review. Findings support the use of benzodiazepines as the recommended drug of choice for the treatment of AWS in the absence of adequate evidence to support the use of alternative agents. There is a lack of evidence of a superior pharmacological agent to the benzodiazepines for the treatment of AWS. There are several studies that have shown that there are pharmacological alternatives that could compete or act as an adjunct with the benzodiazepines in terms of high efficacy and safety in the treatment of AWS, but there is a need for further quality research to be carried out before definitive conclusions can be drawn.
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Affiliation(s)
- E Cooper
- Community Mental Health Team, Pennine Care NHS foundation Trust, Stockport , UK
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17
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Bosch OG, Quednow BB, Seifritz E, Wetter TC. Reconsidering GHB: orphan drug or new model antidepressant? J Psychopharmacol 2012; 26:618-28. [PMID: 21926421 DOI: 10.1177/0269881111421975] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
For six decades, the principal mode of action of antidepressant drugs is the inhibition of monoamine re-uptake from the synaptic cleft. Tricyclic antidepressants, selective serotonin re-uptake inhibitors (SSRIs) and the new generation of dual antidepressants all exert their antidepressant effects by this mechanism. In the early days of the monoaminergic era, other efforts have been made to ameliorate the symptoms of depression by pharmacological means. The gamma-aminobutyric acid (GABA) system was and possibly still is one of the main alternative drug targets. Gammahydroxybutyrate (GHB) was developed as an orally active GABA analogue. It was tested in animal models of depression and human studies. The effects on sleep, agitation, anhedonia and depression were promising. However, the rise of benzodiazepines and tricyclic antidepressants brought GHB out of the scope of possible treatment alternatives. GHB is a GABA(B) and GHB receptor agonist with a unique spectrum of behavioural, neuroendocrine and sleep effects, and improves daytime sleepiness in various disorders such as narcolepsy, Parkinson's disease and fibromyalgia. Although it was banned from the US market at the end of the 1990s because of its abuse and overdose potential, it later was approved for the treatment of narcolepsy. New research methods and an extended view on other neurotransmitter systems as possible treatment targets of antidepressant treatment brought GHB back to the scene. This article discusses the unique neurobiological effects of GHB, its misuse potential and possible role as a model substance for the development of novel pharmacological treatment strategies in depressive disorders.
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Affiliation(s)
- Oliver G Bosch
- Clinic of Affective Disorders and General Psychiatry, University Hospital of Psychiatry, University of Zurich, Zurich, Switzerland.
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Colombo G, Carai MAM, Gessa GL. Suppression by γ-Hydroxybutyric Acid of "Alcohol Deprivation Effect" in Rats: Preclinical Evidence of its anti-Relapse Properties. Front Psychiatry 2012; 3:95. [PMID: 23133426 PMCID: PMC3488660 DOI: 10.3389/fpsyt.2012.00095] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Accepted: 10/17/2012] [Indexed: 11/13/2022] Open
Abstract
γ-Hydroxybutyric acid (GHB) reduces (a) alcohol intake and alcohol motivational properties in alcohol-preferring rats and (b) alcohol drinking and craving for alcohol in human alcoholics. The present study was designed to extend to relapse-like drinking the capacity of GHB to suppress different alcohol-related behaviors in alcohol-preferring rats. The "alcohol deprivation effect," defined as the temporary increase in alcohol intake occurring in laboratory animals after a period of alcohol deprivation, was used as model of alcohol relapse. Acute administration of non-sedative doses of GHB (0, 100, 200, and 300 mg/kg, i.p.) resulted in the complete suppression of the extra-amount of alcohol consumed by Sardinian alcohol-preferring rats during the first hour of re-access to alcohol after a 14-day period of deprivation. These data demonstrate that GHB suppressed relapse-like drinking in a rat model of excessive alcohol consumption.
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Affiliation(s)
- Giancarlo Colombo
- Section of Cagliari, Neuroscience Institute, National Research Council of Italy Monserrato, Italy
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Oliveto A, Gentry WB, Pruzinsky R, Gonsai K, Kosten TR, Martell B, Poling J. Behavioral effects of gamma-hydroxybutyrate in humans. Behav Pharmacol 2010; 21:332-42. [PMID: 20526195 PMCID: PMC2911496 DOI: 10.1097/fbp.0b013e32833b3397] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Despite the therapeutic use and abuse potential of gamma-hydroxybutyrate (GHB or Xyrem), relatively few studies have examined the behavioral effects of GHB in humans under controlled laboratory conditions. Thus, this eight-session study examined in 10 non-substance-abusing volunteers the behavioral effects of GHB at each of the following doses: 0, 0.32, 0.56, 0.75, 1.0, 1.8, 2.4, 3.2 g/70 kg, orally. Order of dose testing was random, except that the first two participants received active doses in ascending order and 2.4 g/70 kg was always tested before 3.2 g/70 kg. Before drug administration and at several postdrug time points, self-report, observer report, physiological, and psychomotor performance measures were obtained. Analyses based on area under the curve showed that GHB produced dose-related increases in subjective ratings of sedative-like, stimulant-like, positive mood, and dissociative effects, but no changes in psychomotor performance measures or blood pressure. Analyses based on peak effects generally showed dose-related increases in ratings indicating sedative-like, dissociative, and drug liking, although some measures showed U-shaped dose-related changes. These initial findings suggest that GHB at doses of 0.32-3.2 g/70 kg produces dissociative, sedating and some stimulant-like effects in humans without a history of sedative abuse.
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Affiliation(s)
- Alison Oliveto
- Department of Psychiatry and Behavioral Sciences,University of Arkansas for Medical Sciences, 4301 W. Markham St., Little Rock, AR 72205, USA.
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Abstract
BACKGROUND Alcohol abuse and dependence represents a serious health problem worldwide with social, interpersonal and legal interpolations. Benzodiazepines have been widely used for the treatment of alcohol withdrawal symptoms. Moreover it is unknown whether different benzodiazepines and different regimens of administration may have the same merits. OBJECTIVES To evaluate the effectiveness and safety of benzodiazepines in the treatment of alcohol withdrawal. SEARCH STRATEGY Cochrane Drugs and Alcohol Group' Register of Trials (December 2009), PubMed, EMBASE, CINAHL (January 1966 to December 2009), EconLIT (1969 to December 2009). Parallel searches on web sites of health technology assessment and related agencies, and their databases. SELECTION CRITERIA Randomized controlled trials examining effectiveness, safety and risk-benefit of benzodiazepines in comparison with placebo or other pharmacological treatment and between themselves. All patients were included regardless of age, gender, nationality, and outpatient or inpatient therapy. DATA COLLECTION AND ANALYSIS Two authors independently screened and extracted data from studies. MAIN RESULTS Sixty four studies, 4309 participants, met the inclusion criteria.- Comparing benzodiazepines versus placebo, benzodiazepines performed better for seizures, 3 studies, 324 participants, RR 0.16 (0.04 to 0.69), no statistically significant difference for the other outcomes considered.- Comparing benzodiazepines versus other drugs, there is a trend in favour of benzodiazepines for seizure and delirium control, severe life threatening side effect, dropouts, dropouts due to side effects and patient's global assessment score. A trend in favour of control group was observed for CIWA-Ar scores at 48 hours and at the end of treatment. The results reach statistical significance only in one study, with 61 participants, results on Hamilton anxiety rating scale favour control MD -1.60 (-2.59 to -0.61)- Comparing different benzodiazepines among themselves,results never reached statistical significance but chlordiazepoxide performed better- Comparing benzodiazepine plus other drug versus other drug, results never reached statistical significance.- In the comparison of fixed-schedule versus symptom-triggered regimens, results from a single study, with 159 participants, favour symptom-triggered regimens MD -1.10 [-3.27, 1.07] for CIWA-Ar scores at the end of treatment. Differences in isolated trials should be interpreted very cautiously. AUTHORS' CONCLUSIONS Benzodiazepines showed a protective benefit against alcohol withdrawal symptoms, in particular seizures, when compared to placebo and a potentially protective benefit for many outcomes when compared with other drugs. Nevertheless, no definite conclusions about the effectiveness and safety of benzodiazepines was possible, because of the heterogeneity of the trials both in interventions and the assessment of outcomes.
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Affiliation(s)
- Laura Amato
- Department of Epidemiology, ASL RM/E, Via di Santa Costanza, 53, Rome, Italy, 00198
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21
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Gamma-hydroxybutyrate does not maintain self-administration but induces conditioned place preference when injected in the ventral tegmental area. Int J Neuropsychopharmacol 2010; 13:143-53. [PMID: 19573264 DOI: 10.1017/s1461145709990186] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Gamma-hydroxybutyric acid (GHB) is an endogenous brain substance that has diverse neuropharmacological actions, including rewarding properties in different animal species and in humans. As other drugs of abuse, GHB affects the firing of ventral tegmental neurons (VTA) in anaesthetized animals and hyperpolarizes dopaminergic neurons in VTA slices. However, no direct behavioural data on the effects of GHB applied in the VTA or in the target regions of its dopaminergic neurons, e.g. the nucleus accumbens (NAc), are available. Here, we investigated the effects of various doses of intravenous GHB in maintaining self-administration (from 0.001 to 10 mg/kg per infusion), and its ability to induce conditioned place preference (CPP) in rats when given orally (175-350 mg/kg) or injected directly either in the VTA or NAc (from 10 to 300 microg/0.5 microl per side). Our results indicate that while only 0.01 mg/kg per infusion GHB maintained self-administration, although not on every test day, 350 mg/kg GHB given orally induced CPP. CPP was also observed when GHB was injected in the VTA (30-100 microg/0.5 microl per side) but not in the NAc. Together with recent in-vitro findings, these results suggest that the rewarding properties of GHB mainly occur via disinhibition of VTA dopaminergic neurons.
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Leone MA, Vigna-Taglianti F, Avanzi G, Brambilla R, Faggiano F. Gamma-hydroxybutyrate (GHB) for treatment of alcohol withdrawal and prevention of relapses. Cochrane Database Syst Rev 2010:CD006266. [PMID: 20166080 DOI: 10.1002/14651858.cd006266.pub2] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Chronic excessive alcohol consumption may lead to dependence, and to alcohol withdrawal syndrome (AWS) in case of abrupt drinking cessation. Gamma-hydroxybutyric acid (GHB) can prevent and suppress withdrawal symptoms, and improve the medium-term abstinence rate. A clear balance between effectiveness and harmfulness has not been yet established. OBJECTIVES To evaluate the efficacy and safety of GHB for treatment of AWS and prevention of relapse SEARCH STRATEGY We searched Cochrane Drugs and Alcohol Group' Register of Trials (October 2008), PubMed, EMBASE, CINAHL (January 2005 - October 2008), EconLIT (1969 to February 2008), reference list of retrieved articles SELECTION CRITERIA Randomized controlled trials (RCTs) and Controlled Prospective Studies (CPS) evaluating the efficacy and the safety of GHB vs placebo or other pharmacological treatments. DATA COLLECTION AND ANALYSIS Three authors independently extracted data and assessed the methodological quality of studies. MAIN RESULTS Thirteen RCTs were included. Eleven studies were conducted in Italy.For withdrawal syndrome, comparing GHB 50mg with placebo, results from 1 study, 23 participants favour GHB for withdrawal symptoms: WMD -12.1 (95% CI, -15.9 to -8.29) and side effects were more frequent in the placebo group: RR 16.2 (95% CI, 1.04 to 254.9).In the comparison with Chlormetiazole, for GHB 50mg, results from 1 study, 21 participants favour GHB for withdrawal symptoms: MD -3.40 (95% CI -5.09 to -1.71), for GHB 100mg, results from 1 study, 98 participants favour anticonvulsants for side effects: RR 1.84 (95% CI 1.19 to 2.85).At mid-term, comparing GHB with placebo, results favour GHB for abstinence rate (RR 5.35; 1.28-22.4), controlled drinking (RR 2.13; 1.07-5.54), relapses (RR 0.36; 0.21-0.63), and number of daily drinks (WMD -4.60; -6.18 to -3.02). GHB performed better than NTX and Disulfiram on abstinence (RR 2.59; 1.35-4.98, RR 1.66; 0.99-2.80 respectively). The association of GHB and NTX was better than NTX on abstinence (RR 12.2; 1.79-83.9), as well was the association of NTX, GHB and Escitalopram versus Escitalopram alone (RR 4.58; 1.28-16.5). For Alcohol Craving Scale results favour GHB versus placebo (WMD -1.90; -2.45 to 1.35) and Disulfiram (WMD -1.40; -1.86 to-0.94). AUTHORS' CONCLUSIONS GHB 50mg is effective compared to placebo in the treatment of AWS, and in preventing relapses in previously detoxified alcoholics at 3 months follow-up, but the results of this review do not provide sufficient evidence in favour of GHB compared to benzodiazepines and Chlormethiazole for AWS prevention. GHB is better than NTX and Disulfiram in maintaining abstinence and it has a better effect on craving than placebo and Disulfiram. Side effects of GHB are not statistically different from those with BZD, NTX or Disulfiram. However, concern has been raised regarding the risk of developing addiction, misuse or abuse, especially in polydrug abusers.
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Affiliation(s)
- Maurizio A Leone
- SCDU Neurologia, Aziena Ospedaliero-Universitaria "Maggiore della Carità", C Mazzini 18, 28100 Novara, Italy
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Modeling withdrawal syndrome in zebrafish. Behav Brain Res 2009; 208:371-6. [PMID: 20006651 DOI: 10.1016/j.bbr.2009.12.004] [Citation(s) in RCA: 135] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2009] [Revised: 12/01/2009] [Accepted: 12/06/2009] [Indexed: 01/19/2023]
Abstract
The zebrafish (Danio rerio) is rapidly becoming a popular model species in behavioral neuroscience research. Zebrafish behavior is robustly affected by environmental and pharmacological manipulations, and can be examined using exploration-based paradigms, paralleled by analysis of endocrine (cortisol) stress responses. Discontinuation of various psychotropic drugs evokes withdrawal in both humans and rodents, characterized by increased anxiety. Sensitivity of zebrafish to drugs of abuse has been recently reported in the literature. Here we examine the effects of ethanol, diazepam, morphine and caffeine withdrawal on zebrafish behavior. Overall, discontinuation of ethanol, diazepam and morphine produced anxiogenic-like behavioral or endocrine responses, demonstrating the utility of zebrafish in translational research of withdrawal syndrome.
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Caputo F, Francini S, Stoppo M, Lorenzini F, Vignoli T, Del Re A, Comaschi C, Leggio L, Addolorato G, Zoli G, Bernardi M. Incidence of craving for and abuse of gamma-hydroxybutyric acid (GHB) in different populations of treated alcoholics: an open comparative study. J Psychopharmacol 2009; 23:883-90. [PMID: 18635689 DOI: 10.1177/0269881108094620] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Gamma-hydroxybutyric acid (GHB) is a drug currently used for the treatment of alcohol dependence. The aim of our study was to investigate the incidence of craving for and abuse of GHB in 47 patients enrolled and divided into four groups: group A (pure alcoholics), group B (alcoholics with a sustained full remission from cocaine dependence), group C (alcoholics with a sustained full remission from heroin dependence) and group D (alcoholics in a methadone maintenance treatment [MMT] programme). All patients were treated with an oral dose of GHB (50 mg/kg of body weight t.i.d.) for three months. Craving for GHB was statistically significant higher in group B than in group A (P < 0.001), C (P = 0.01) and D (P < 0.001), and in group C than in group D (P < 0.05). Abuse of GHB proved to be statistically significant higher in group B than in group A (P < 0.001) and D (P < 0.01), and in group C than in group A (P = 0.01) and D (P < 0.05). Thus, the administration of GHB in alcoholics with a sustained full remission from heroin or cocaine dependence is not recommended; however, this should not discourage physicians from using GHB for the treatment of pure alcoholics or alcohol dependents following a MMT.
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Affiliation(s)
- F Caputo
- G. Fontana Centre for the Study and Multidisciplinary Treatment of Alcohol Addiction, Department of Internal Medicine, Cardioangiology and Hepatology, University of Bologna, Bologna, Italy.
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Elsing C, Stremmel W, Grenda U, Herrmann T. Gamma-hydroxybutyric acid versus clomethiazole for the treatment of alcohol withdrawal syndrome in a medical intensive care unit: an open, single-center randomized study. THE AMERICAN JOURNAL OF DRUG AND ALCOHOL ABUSE 2009; 35:189-92. [PMID: 19462303 DOI: 10.1080/00952990902933852] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND Clomethiazole (CLO) has been shown to be effective in treating alcohol withdrawal syndrome (AWS). Gamma-Hydroxybutyric acid (GHB) has also been introduced in the treatment of alcoholic patients and is effective in surgical intensive care unit (ICU) patients in preventing and treating AWS. There are no comparative studies between CLO and GHB in a medical ICU setting. METHODS Twenty-six alcoholic patients with severe AWS and concomitant medical diseases were randomally enrolled in the study. CLO was given orally to 12 patients in a dosage of 250 mg every 4 hours as a liquid; GHB (initially 30 mg/kg body weight (BW) followed by 15 mg/kg BW) was administered intravenously to 14 patients. Four major AWS symptoms (tremor, sweating, nausea, restlessness) were scored, and the administration of additional medication was registered. RESULTS GHB was more effective in treating AWS symptoms. In the GHB group, AWS score dropped from 6.6 +/- 2.6 to 1.8 +/- 2.1 (p <.01), while in the CLO group, the score dropped from 6 +/- 2.5 to 4.1 +/- 2.4 (n. s.). Differences between groups were significant (p =.021, two-way ANOVA). The treatment did not alter outcome or the duration of ICU stay. No serious side effects were detected. CONCLUSION GHB effectively controls AWS symptoms in medical ICU patients. The rapid initial treatment response of GHB in contrast to CLO has no influence on duration of patient withdrawal.
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Affiliation(s)
- Christoph Elsing
- Department of Internal Medicine, St Elisabeth Hospital, Dorsten, Germany.
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26
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Caputo F, Vignoli T, Maremmani I, Bernardi M, Zoli G. Gamma hydroxybutyric acid (GHB) for the treatment of alcohol dependence: a review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2009; 6:1917-29. [PMID: 19578468 PMCID: PMC2705225 DOI: 10.3390/ijerph6061917] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2009] [Accepted: 06/21/2009] [Indexed: 11/16/2022]
Abstract
Gamma-hydroxybutyric acid (GHB) is a short-chain fatty acid structurally similar to the inhibitory neurotransmitter gamma-aminobutyric acid. Clinical trials have demonstrated that 50-100 mg/kg of GHB fractioned into three or six daily doses is able to suppress alcohol withdrawal symptoms and facilitates the maintenance of abstinence from alcohol. These studies have also shown that GHB craving episodes are a very limited phenomenon (about 10-15%). Thus, physicians with access should consider the clinical efficacy of GHB as a valid pharmacological tool for the treatment of alcohol addiction.
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Affiliation(s)
- Fabio Caputo
- Department of Internal Medicine, SS Annunziata Hospital, Cento (Ferrara), Italy; E-Mail:
| | - Teo Vignoli
- “G. Fontana” Centre for the Study and Multidisciplinary Treatment of Alcohol Addiction, Department of Clinical Medicine, University of Bologna, Italy; E-Mails:
(T.V.);
(M.B.)
| | - Icro Maremmani
- Vincent P. Dole Dual Diagnosis Unit, Santa Chiara University Hospital, Department of Psychiatry, NPB, University of Pisa, Italy; E-Mail:
| | - Mauro Bernardi
- “G. Fontana” Centre for the Study and Multidisciplinary Treatment of Alcohol Addiction, Department of Clinical Medicine, University of Bologna, Italy; E-Mails:
(T.V.);
(M.B.)
| | - Giorgio Zoli
- Department of Internal Medicine, SS Annunziata Hospital, Cento (Ferrara), Italy; E-Mail:
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Comparative genomics of aldehyde dehydrogenase 5a1 (succinate semialdehyde dehydrogenase) and accumulation of gamma-hydroxybutyrate associated with its deficiency. Hum Genomics 2009; 3:106-20. [PMID: 19164088 PMCID: PMC2657722 DOI: 10.1186/1479-7364-3-2-106] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Succinic semialdehyde dehydrogenase (SSADH; aldehyde dehydrogenase 5A1 [ALDH5A1]; locus 6p22) occupies a central position in central nervous system (CNS) neurotransmitter metabolism as one of two enzymes necessary for γ-aminobutyric acid (GABA) recycling from the synaptic cleft. Its importance is highlighted by the neurometabolic disease associated with its inherited deficiency in humans, as well as the severe epileptic phenotype observed in Aldh5a1-/- knockout mice. Expanding evidence now suggests, however, that even subtle decreases in human SSADH activity, associated with rare and common single nucleotide polymorphisms, may produce subclinical pathological effects. SSADH, in conjunction with aldo-keto reductase 7A2 (AKR7A2), represent two neural enzymes responsible for further catabolism of succinic semialdehyde, producing either succinate (SSADH) or γ-hydroxybutyrate (GHB; AKR7A2). A GABA analogue, GHB is a short-chain fatty alcohol with unusual properties in the CNS and a long pharmacological history. Moreover, SSADH occupies a further role in the CNS as the enzyme responsible for further metabolism of the lipid peroxidation aldehyde 4-hydroxy-2-nonenal (4-HNE), an intermediate known to induce oxidant stress. Accordingly, subtle decreases in SSADH activity may have the capacity to lead to regional accumulation of neurotoxic intermediates (GHB, 4-HNE). Polymorphisms in SSADH gene structure may also associate with quantitative traits, including intelligence quotient and life expectancy. Further population-based studies of human SSADH activity promise to reveal additional properties of its function and additional roles in CNS tissue.
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Addolorato G, Leggio L, Ferrulli A, Caputo F, Gasbarrini A. The therapeutic potential of gamma-hydroxybutyric acid for alcohol dependence: balancing the risks and benefits. A focus on clinical data. Expert Opin Investig Drugs 2009; 18:675-86. [DOI: 10.1517/13543780902905855] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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The distribution of gamma-hydroxybutyrate-induced Fos expression in rat brain: comparison with baclofen. Neuroscience 2008; 158:441-55. [PMID: 18996447 DOI: 10.1016/j.neuroscience.2008.10.011] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2008] [Revised: 09/26/2008] [Accepted: 11/05/2008] [Indexed: 11/20/2022]
Abstract
gamma-Hydroxybutyrate (GHB) is a euphoric, prosocial and sleep inducing drug that binds with high affinity to its own GHB receptor site and also more weakly to GABA(B) receptors. GHB is efficacious in the treatment of narcolepsy and alcoholism, but heavy use can lead to dependence and withdrawal. Many effects of GHB (sedation, hypothermia, catalepsy) are mimicked by GABA(B) receptor agonists (e.g. baclofen). However other effects (euphoric and prosocial effects and a therapeutic effect in narcolepsy) are not. The present study used Fos immunohistochemistry to assess the neural activation produced in rat brain by medium to high doses of GHB (250, 500 and 1000 mg/kg) and a high dose of baclofen (10 mg/kg) that produced similar sedation to 500 mg/kg GHB. Results showed many common regions of activation with these two drugs including the supraoptic, paraventricular, median preoptic and ventral premammillary nuclei of the hypothalamus, the central nucleus of the amygdala, Edinger-Westphal nucleus, lateral parabrachial nucleus, locus coeruleus, and nucleus of the solitary tract. GHB (500 mg/kg), but not baclofen (10 mg/kg), induced significant Fos expression in the median raphe nucleus and lateral habenula, while a higher dose of GHB (1000 mg/kg) induced additional Fos expression in the islands of Calleja, dentate gyrus (polymorphic layer) and arcuate nucleus, and in various regions implicated in rapid and non-rapid eye movement sleep (laterodorsal tegmental nucleus, tuberomammillary nucleus and the ventrolateral and anterodorsal preoptic nuclei). Surprisingly, Fos immunoreactivity was not observed with either GHB or baclofen in reward-relevant regions such as the nucleus accumbens, striatum and ventral tegmental area. Overall these results indicate a distinctive signature of brain activation with GHB that may be only partly due to GABA(B) receptor effects. This confirms a unique neuropharmacological profile for GHB and indicates key neural substrates that may underlie its characteristic influence on sleep, body temperature, sociability and endocrine function.
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Leggio L, Kenna GA, Swift RM. New developments for the pharmacological treatment of alcohol withdrawal syndrome. A focus on non-benzodiazepine GABAergic medications. Prog Neuropsychopharmacol Biol Psychiatry 2008; 32:1106-17. [PMID: 18029075 DOI: 10.1016/j.pnpbp.2007.09.021] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2007] [Revised: 09/07/2007] [Accepted: 09/29/2007] [Indexed: 01/22/2023]
Abstract
Alcohol withdrawal syndrome (AWS) can be a life-threatening condition affecting some alcohol-dependent patients who abruptly discontinue or decrease their alcohol consumption. The main objectives of the clinical management of AWS include: to decrease the severity of symptoms, prevent more severe withdrawal clinical manifestations and facilitate entry of the patient into a treatment program in order to attempt to achieve and maintain long-term abstinence from alcohol. At present, benzodiazepines represent the drugs of choice in the treatment of AWS. However, in line with the possible side effects and addictive properties related to benzodiazepine use, there is growing evidence to suggest that non-benzodiazepine GABAergic compounds represent promising medications in the treatment of alcohol-dependent patients. This review focuses on research into non-benzodiazepine GABAergic medications for the treatment of AWS. Among them, carbamazepine, gabapentin and valproic acid are the most studied. The studies on carbamazepine seem to be the most compelling. Preliminary data have also suggested the possible utility of baclofen and topiramate, although further evidence is needed. The promising results in terms of both safety and efficacy are reported. However, we also note the need of more methodologically controlled studies on a greater number of patients, involving more complicated forms of AWS.
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Affiliation(s)
- Lorenzo Leggio
- Center for Alcohol and Addiction Studies, Department of Psychiatry and Human Behavior, Brown University Medical School, Providence, RI 02912, USA.
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Ameisen O. Are the effects of gamma-hydroxybutyrate (GHB) treatment partly physiological in alcohol dependence? THE AMERICAN JOURNAL OF DRUG AND ALCOHOL ABUSE 2008; 34:235-6; author reply 237-8. [PMID: 18293241 DOI: 10.1080/00952990701877177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
It has been hypothesized that the therapeutic effects of Gamma-hydroxybutyrate (GHB) in alcohol dependence could be related to ethanol-mimicking action of the drug and that GHB could reduce alcohol craving, intake and withdrawal by acting as a "substitute" of the alcohol in the central nervous system. Nevertheless, alcohol being the strongest trigger of craving and intake, it is difficult to ascribe reduction of craving and intake to ethanol-mimicking activity of GHB. I have recently proposed that alcohol/substance dependence could result from a GHB-deficiency-related dysphoric syndrome in which alcohol/substances would be sought to "substitute" for insufficient GHB effect. GHB is the sole identified naturally occurring gamma-aminobutyric acid B (GABA (B)) receptor agonist. Here, I propose that exogenous GHB might in fact "substitute" for deficient endogeneous GHB and represent true substitutive treatment for GHB-deficiency. And that baclofen and GHB could both compensate for deficient effect of the physiological GABA (B) receptor agonist(s).
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Kosten TR, Gardner TJ. New hot topics sections: 1. China's new march forward in addiction treatment: methadone for the masses. 2. Issues in formulating DSM V. THE AMERICAN JOURNAL OF DRUG AND ALCOHOL ABUSE 2008; 34:123-6. [PMID: 18293228 DOI: 10.1080/00952990701876948] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Bibliography. Current world literature. Adrenal cortex. Curr Opin Endocrinol Diabetes Obes 2008; 15:284-299. [PMID: 18438178 DOI: 10.1097/med.0b013e3283040e80] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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