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Yates JR. Pharmacological Treatments for Methamphetamine Use Disorder: Current Status and Future Targets. Subst Abuse Rehabil 2024; 15:125-161. [PMID: 39228432 PMCID: PMC11370775 DOI: 10.2147/sar.s431273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Accepted: 08/15/2024] [Indexed: 09/05/2024] Open
Abstract
The illicit use of the psychostimulant methamphetamine (METH) is a major concern, with overdose deaths increasing substantially since the mid-2010s. One challenge to treating METH use disorder (MUD), as with other psychostimulant use disorders, is that there are no available pharmacotherapies that can reduce cravings and help individuals achieve abstinence. The purpose of the current review is to discuss the molecular targets that have been tested in assays measuring the physiological, the cognitive, and the reinforcing effects of METH in both animals and humans. Several drugs show promise as potential pharmacotherapies for MUD when tested in animals, but fail to produce long-term changes in METH use in dependent individuals (eg, modafinil, antipsychotic medications, baclofen). However, these drugs, plus medications like atomoxetine and varenicline, may be better served as treatments to ameliorate the psychotomimetic effects of METH or to reverse METH-induced cognitive deficits. Preclinical studies show that vesicular monoamine transporter 2 inhibitors, metabotropic glutamate receptor ligands, and trace amine-associated receptor agonists are efficacious in attenuating the reinforcing effects of METH; however, clinical studies are needed to determine if these drugs effectively treat MUD. In addition to screening these compounds in individuals with MUD, potential future directions include increased emphasis on sex differences in preclinical studies and utilization of pharmacogenetic approaches to determine if genetic variances are predictive of treatment outcomes. These future directions can help lead to better interventions for treating MUD.
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Affiliation(s)
- Justin R Yates
- Department of Psychological Science, Northern Kentucky University, Highland Heights, KY, USA
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2
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Nagy EK, Overby PF, Leyrer-Jackson JM, Carfagno VF, Acuña AM, Olive MF. Methamphetamine and the Synthetic Cathinone 3,4-Methylenedioxypyrovalerone (MDPV) Produce Persistent Effects on Prefrontal and Striatal Microglial Morphology and Neuroimmune Signaling Following Repeated Binge-like Intake in Male and Female Rats. Brain Sci 2024; 14:435. [PMID: 38790414 PMCID: PMC11118022 DOI: 10.3390/brainsci14050435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 04/22/2024] [Accepted: 04/24/2024] [Indexed: 05/26/2024] Open
Abstract
Psychostimulants alter cellular morphology and activate neuroimmune signaling in a number of brain regions, yet few prior studies have investigated their persistence beyond acute abstinence or following high levels of voluntary drug intake. In this study, we examined the effects of the repeated binge-like self-administration (96 h/week for 3 weeks) of methamphetamine (METH) and 21 days of abstinence in female and male rats on changes in cell density, morphology, and cytokine levels in two addiction-related brain regions-the prefrontal cortex (PFC) and dorsal striatum (DStr). We also examined the effects of similar patterns of intake of the cocaine-like synthetic cathinone derivative 3,4-methylenedioxypyrovalerone (MDPV) or saline as a control. Robust levels of METH and MDPV intake (~500-1000 infusions per 96 h period) were observed in both sexes. We observed no changes in astrocyte or neuron density in either region, but decreases in dendritic spine densities were observed in PFC pyramidal and DStr medium spiny neurons. The microglial cell density was decreased in the PFC of METH self-administering animals, accompanied by evidence of microglial apoptosis. Changes in microglial morphology (e.g., decreased territorial volume and ramification and increased cell soma volume) were also observed, indicative of an inflammatory-like state. Multiplex analyses of PFC and DStr cytokine content revealed elevated levels of various interleukins and chemokines only in METH self-administering animals, with region- and sex-dependent effects. Our findings suggest that voluntary binge-like METH or MDPV intake induces similar cellular perturbations in the brain, but they are divergent neuroimmune responses that persist beyond the initial abstinence phase.
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Affiliation(s)
- Erin K. Nagy
- Department of Psychology, Behavioral Neuroscience and Comparative Psychology Area, Arizona State University, Tempe, AZ 85287, USA
| | - Paula F. Overby
- Department of Psychology, Behavioral Neuroscience and Comparative Psychology Area, Arizona State University, Tempe, AZ 85287, USA
| | - Jonna M. Leyrer-Jackson
- Department of Medical Education, School of Medicine, Creighton University, Phoenix, AZ 85012, USA
| | - Vincent F. Carfagno
- Arizona College of Osteopathic Medicine, Midwestern University, Glendale, AZ 85308, USA
| | - Amanda M. Acuña
- Department of Psychology, Behavioral Neuroscience and Comparative Psychology Area, Arizona State University, Tempe, AZ 85287, USA
- Interdisciplinary Graduate Program in Neuroscience, School of Life Sciences, Arizona State University, Tempe, AZ 85287, USA
| | - M. Foster Olive
- Department of Psychology, Behavioral Neuroscience and Comparative Psychology Area, Arizona State University, Tempe, AZ 85287, USA
- Interdisciplinary Graduate Program in Neuroscience, School of Life Sciences, Arizona State University, Tempe, AZ 85287, USA
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3
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Adeniyi PA, Adeyelu TT, Shrestha A, Liu CC, Lee CC. Prenatal and postnatal methamphetamine exposure alters prefrontal cortical gene expression and behavior in mice. Front Behav Neurosci 2024; 18:1286872. [PMID: 38505323 PMCID: PMC10949922 DOI: 10.3389/fnbeh.2024.1286872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 02/07/2024] [Indexed: 03/21/2024] Open
Abstract
Methamphetamine is a highly abused psychostimulant that substantially impacts public health. Prenatal and postnatal methamphetamine exposure alters gene expression, brain development, and behavior in the offspring, although the underlying mechanisms are not fully defined. To assess these adverse outcomes in the offspring, we employed a mouse model of prenatal and postnatal methamphetamine exposure. Juvenile offspring were behaviorally assessed on the open field, novel object recognition, Y-maze, and forced swim tests. In addition, RNA sequencing was used to explore potential alterations in prefrontal cortical gene expression. We found that methamphetamine-exposed mice exhibited decreased locomotor activity and impaired cognitive performance. In addition, differential expression of genes involved in neurotransmission, synaptic plasticity, and neuroinflammation were found with notable changes in dopaminergic signaling pathways. These data suggest potential neural and molecular mechanisms underlying methamphetamine-exposed behavioral changes. The altered expression of genes involved in dopaminergic signaling and synaptic plasticity highlights potential targets for therapeutic interventions for substance abuse disorders and related psychiatric complications.
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Affiliation(s)
- Philip A. Adeniyi
- Department of Comparative Biomedical Sciences, Louisiana State University School of Veterinary Medicine, Baton Rouge, LA, United States
- Department of Pediatrics, Oregon Health & Science University, Portland, OR, United States
| | - Tolulope T. Adeyelu
- Department of Comparative Biomedical Sciences, Louisiana State University School of Veterinary Medicine, Baton Rouge, LA, United States
| | - Amita Shrestha
- Department of Comparative Biomedical Sciences, Louisiana State University School of Veterinary Medicine, Baton Rouge, LA, United States
| | - Chin-Chi Liu
- Department of Veterinary Clinical Sciences, Louisiana State University School of Veterinary Medicine, Baton Rouge, LA, United States
| | - Charles C. Lee
- Department of Comparative Biomedical Sciences, Louisiana State University School of Veterinary Medicine, Baton Rouge, LA, United States
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4
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Wouldes TA, Lester BM. Opioid, methamphetamine, and polysubstance use: perinatal outcomes for the mother and infant. Front Pediatr 2023; 11:1305508. [PMID: 38250592 PMCID: PMC10798256 DOI: 10.3389/fped.2023.1305508] [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: 10/01/2023] [Accepted: 11/20/2023] [Indexed: 01/23/2024] Open
Abstract
The escalation in opioid pain relief (OPR) medications, heroin and fentanyl, has led to an increased use during pregnancy and a public health crisis. Methamphetamine use in women of childbearing age has now eclipsed the use of cocaine and other stimulants globally. Recent reports have shown increases in methamphetamine are selective to opioid use, particularly in rural regions in the US. This report compares the extent of our knowledge of the perinatal outcomes of OPRs, heroin, fentanyl, two long-acting substances used in the treatment of opioid use disorders (buprenorphine and methadone), and methamphetamine. The methodological limitations of the current research are examined, and two important initiatives that will address these limitations are reviewed. Current knowledge of the perinatal effects of short-acting opioids, OPRs, heroin, and fentanyl, is scarce. Most of what we know about the perinatal effects of opioids comes from research on the long-acting opioid agonist drugs used in the treatment of OUDs, methadone and buprenorphine. Both have better perinatal outcomes for the mother and newborn than heroin, but the uptake of these opioid substitution programs is poor (<50%). Current research on perinatal outcomes of methamphetamine is limited to retrospective epidemiological studies, chart reviews, one study from a treatment center in Hawaii, and the US and NZ cross-cultural infant Development, Environment And Lifestyle IDEAL studies. Characteristics of pregnant individuals in both opioid and MA studies were associated with poor maternal health, higher rates of mental illness, trauma, and poverty. Infant outcomes that differed between opioid and MA exposure included variations in neurobehavior at birth which could complicate the diagnosis and treatment of neonatal opioid withdrawal (NOWs). Given the complexity of OUDs in pregnant individuals and the increasing co-use of these opioids with MA, large studies are needed. These studies need to address the many confounders to perinatal outcomes and employ neurodevelopmental markers at birth that can help predict long-term neurodevelopmental outcomes. Two US initiatives that can provide critical research and treatment answers to this public health crisis are the US Environmental influences on Child Health Outcomes (ECHO) program and the Medication for Opioid Use Disorder During Pregnancy Network (MAT-LINK).
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Affiliation(s)
- Trecia A. Wouldes
- Department of Psychological Medicine, The University of Auckland, Auckland, New Zealand
| | - Barry M. Lester
- Center for the Study of Children at Risk, Warren Alpert Medical School, Brown University, Providence, RI, United States
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5
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Mantinieks D, Archer M, Schumann J, Drummer OH, Gerostamoulos D. Methylamphetamine toxicity and its involvement in death: A retrospective observational study of deaths reported to the Victorian Coroner, Australia. Forensic Sci Med Pathol 2023:10.1007/s12024-023-00724-0. [PMID: 37792205 DOI: 10.1007/s12024-023-00724-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/19/2023] [Indexed: 10/05/2023]
Abstract
A retrospective observational study of Victorian deaths involving MA between 2010 and 2019 was conducted to determine the prevalence and contribution of methylamphetamine (MA) toxicity to death in the absence of other factors. Demographics, autopsy findings, toxicology, and the cause of death were reviewed. Coronial cases were categorized into five groups: deaths due to MA toxicity in the absence of other factors (Group A1); deaths due to MA toxicity in the setting of other potentially contributing factors (Group A2); deaths due to MA toxicity in the setting of significant natural disease (Group B); deaths primarily due to multiple-drug toxicity (Group C); and deaths primarily due to natural causes (Group D). There were 506 deaths involving MA categorized into Group A1 (n = 1, 0.6%), Group A2 (n = 8, 1.6%), Group B (n = 28, 5.5%), Group C (n = 229, 45%), and Group D (n = 240, 47%). Significant natural disease was prevalent among deaths involving MA and mainly concerned forms of cardiovascular disease (n = 277, 55%). The MA concentration in the one death included in Group A1 was 2.1 mg/L. The median MA concentrations of Group A2 (1.6 mg/L) and Group B (0.5 mg/L) were significantly higher than Group C (0.2 mg/L) and Group D (0.2 mg/L). Additionally, many other toxicologically significant drugs were detected and mostly comprised of central nervous system depressants. Deaths due to MA toxicity in the absence of other factors were rare despite the greater availability of crystal MA in the Australian community. The study highlights the interpretative challenges of MA blood concentrations and the continuing harms of this drug in Australia.
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Affiliation(s)
- Dylan Mantinieks
- Department of Forensic Medicine, School of Public Health and Preventive Medicine, Monash University, 65 Kavanagh Street, Southbank 3006, Victoria, Australia.
- Victorian Institute of Forensic Medicine, 65 Kavanagh Street, Southbank 3006, Victoria, Australia.
| | - Melanie Archer
- Department of Forensic Medicine, School of Public Health and Preventive Medicine, Monash University, 65 Kavanagh Street, Southbank 3006, Victoria, Australia
- Victorian Institute of Forensic Medicine, 65 Kavanagh Street, Southbank 3006, Victoria, Australia
| | - Jennifer Schumann
- Department of Forensic Medicine, School of Public Health and Preventive Medicine, Monash University, 65 Kavanagh Street, Southbank 3006, Victoria, Australia
- Victorian Institute of Forensic Medicine, 65 Kavanagh Street, Southbank 3006, Victoria, Australia
| | - Olaf H Drummer
- Department of Forensic Medicine, School of Public Health and Preventive Medicine, Monash University, 65 Kavanagh Street, Southbank 3006, Victoria, Australia
- Victorian Institute of Forensic Medicine, 65 Kavanagh Street, Southbank 3006, Victoria, Australia
| | - Dimitri Gerostamoulos
- Department of Forensic Medicine, School of Public Health and Preventive Medicine, Monash University, 65 Kavanagh Street, Southbank 3006, Victoria, Australia
- Victorian Institute of Forensic Medicine, 65 Kavanagh Street, Southbank 3006, Victoria, Australia
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6
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Scott R. Methamphetamine dependence in Australia-why is 'ice' (crystal meth) so addictive? PSYCHIATRY, PSYCHOLOGY, AND LAW : AN INTERDISCIPLINARY JOURNAL OF THE AUSTRALIAN AND NEW ZEALAND ASSOCIATION OF PSYCHIATRY, PSYCHOLOGY AND LAW 2023; 31:671-704. [PMID: 39118784 PMCID: PMC11305059 DOI: 10.1080/13218719.2023.2206870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 04/13/2023] [Indexed: 08/10/2024]
Abstract
Australia has one of the highest rates in the world of the use of the crystalline form of methamphetamine, a highly addictive stimulant that is often associated with a chronic, relapsing dependency. Methamphetamine use is associated with both acquisitive and violent offending, which cause substantial personal and societal costs. Whilst the short-term euphoria and stimulation provide a positive reinforcement to methamphetamine use, the aversive states of withdrawing from methamphetamine and the associated craving, which may last up to five weeks into abstinence, underlie the negative reinforcement to continued methamphetamine use. Although many methamphetamine-dependent users experience high levels of psychological distress, it is likely that less than half engage with treatment or support services, and current intervention and treatment programmes have high discontinuation rates. Stigma and discrimination, even from paramedics and health clinicians, are prominent barriers to methamphetamine-dependent users accessing treatment in Australia.
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Affiliation(s)
- Russ Scott
- West Moreton Prison Mental Health Service, Brisbane, QLD, Australia
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7
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Cummins-Beebee PN, Chvilicek MM, Rothenfluh A. The Stage-Based Model of Addiction-Using Drosophila to Investigate Alcohol and Psychostimulant Responses. Int J Mol Sci 2023; 24:10909. [PMID: 37446084 PMCID: PMC10341944 DOI: 10.3390/ijms241310909] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/23/2023] [Accepted: 06/25/2023] [Indexed: 07/15/2023] Open
Abstract
Addiction is a progressive and complex disease that encompasses a wide range of disorders and symptoms, including substance use disorder (SUD), for which there are few therapeutic treatments. SUD is the uncontrolled and chronic use of substances despite the negative consequences resulting from this use. The progressive nature of addiction is organized into a testable framework, the neurobiological stage-based model, that includes three behavioral stages: (1) binge/intoxication, (2) withdrawal/negative affect, and (3) preoccupation/anticipation. Human studies offer limited opportunities for mechanistic insights into these; therefore, model organisms, like Drosophila melanogaster, are necessary for understanding SUD. Drosophila is a powerful model organism that displays a variety of SUD-like behaviors consistent with human and mammalian substance use, making flies a great candidate to study mechanisms of behavior. Additionally, there are an abundance of genetic tools like the GAL4/UAS and CRISPR/Cas9 systems that can be used to gain insight into the molecular mechanisms underlying the endophenotypes of the three-stage model. This review uses the three-stage framework and discusses how easily testable endophenotypes have been examined with experiments using Drosophila, and it outlines their potential for investigating other endophenotypes.
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Affiliation(s)
- Pearl N. Cummins-Beebee
- Department of Psychiatry, University of Utah, Salt Lake City, UT 84112, USA
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112, USA
- Neuroscience Graduate Program, University of Utah, Salt Lake City, UT 84112, USA
| | - Maggie M. Chvilicek
- Department of Psychiatry, University of Utah, Salt Lake City, UT 84112, USA
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112, USA
- Neuroscience Graduate Program, University of Utah, Salt Lake City, UT 84112, USA
| | - Adrian Rothenfluh
- Department of Psychiatry, University of Utah, Salt Lake City, UT 84112, USA
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112, USA
- Neuroscience Graduate Program, University of Utah, Salt Lake City, UT 84112, USA
- Department of Neurobiology, University of Utah, Salt Lake City, UT 84112, USA
- Department of Human Genetics, University of Utah, Salt Lake City, UT 84112, USA
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8
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Zhou Y, Hong Q, Xu W, Chen W, Xie X, Zhuang D, Lai M, Fu D, Xu Z, Wang M, Zhou W, Liu H. Differential expression profiling of tRNA-Derived small RNAs and their potential roles in methamphetamine self-administered rats. Front Genet 2023; 14:1088498. [PMID: 36845381 PMCID: PMC9945332 DOI: 10.3389/fgene.2023.1088498] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 01/18/2023] [Indexed: 02/05/2023] Open
Abstract
Transfer RNA-derived small RNAs (tsRNAs) are a novel class of short, non-coding RNAs that are closely associated with the pathogenesis of various diseases. Accumulating evidence has demonstrated their critical functional roles as regulatory factors in gene expression regulation, protein translation regulation, regulation of various cellular activities, immune mediation, and response to stress. However, the underlying mechanisms by which tRFs & tiRNAs affect methamphetamine-induced pathophysiological processes are largely unknown. In this study, we used a combination of small RNA sequencing, quantitative reverse transcription-polymerase chain reaction (qRT‒PCR), bioinformatics, and luciferase reporter assays to screen the expression profiles and identify the functional roles of tRFs and tiRNAs in the nucleus accumbens (NAc) of methamphetamine self-administration rat models. A total of 461 tRFs & tiRNAs were identified in the NAc of rats after 14 days of methamphetamine self-administration training. Of those, 132 tRFs & tiRNAs were significantly differentially expressed: 59 were significantly upregulated, whereas 73 were significantly downregulated in the rats with methamphetamine self-administration. Decreased expression levels of tiRNA-1-34-Lys-CTT-1 and tRF-1-32-Gly-GCC-2-M2, as well as increased expression levels of tRF-1-16-Ala-TGC-4 in the METH group compared with the saline control were validated by using RT‒PCR. Then, bioinformatic analysis was performed to analyse the possible biological functions of tRFs & tiRNAs in methamphetamine-induced pathogenesis. Furthermore, tRF-1-32-Gly-GCC-2-M2 was identified to target BDNF using the luciferase reporter assay. An altered tsRNA expression pattern was proven, and tRF-1-32-Gly-GCC-2-M2 was shown to be involved in methamphetamine-induced pathophysiologic processes by targeting BDNF. The current study provides new insights for future investigations to explore the mechanisms and therapeutic methods for methamphetamine addiction.
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Affiliation(s)
- Yun Zhou
- School of Medicine, Ningbo University, Laboratory of Behavioral Neuroscience, Ningbo Kangning Hospital, Ningbo, Zhejiang, China
| | - Qingxiao Hong
- School of Medicine, Ningbo University, Laboratory of Behavioral Neuroscience, Ningbo Kangning Hospital, Ningbo, Zhejiang, China,Key Laboratory of Addiction Research of Zhejiang Province, Ningbo, Zhejiang, China
| | - Wenjin Xu
- School of Medicine, Ningbo University, Laboratory of Behavioral Neuroscience, Ningbo Kangning Hospital, Ningbo, Zhejiang, China,Key Laboratory of Addiction Research of Zhejiang Province, Ningbo, Zhejiang, China
| | - Weisheng Chen
- School of Medicine, Ningbo University, Laboratory of Behavioral Neuroscience, Ningbo Kangning Hospital, Ningbo, Zhejiang, China,Key Laboratory of Addiction Research of Zhejiang Province, Ningbo, Zhejiang, China
| | - Xiaohu Xie
- School of Medicine, Ningbo University, Laboratory of Behavioral Neuroscience, Ningbo Kangning Hospital, Ningbo, Zhejiang, China,Key Laboratory of Addiction Research of Zhejiang Province, Ningbo, Zhejiang, China
| | - Dingding Zhuang
- School of Medicine, Ningbo University, Laboratory of Behavioral Neuroscience, Ningbo Kangning Hospital, Ningbo, Zhejiang, China,Key Laboratory of Addiction Research of Zhejiang Province, Ningbo, Zhejiang, China
| | - Miaojun Lai
- School of Medicine, Ningbo University, Laboratory of Behavioral Neuroscience, Ningbo Kangning Hospital, Ningbo, Zhejiang, China,Key Laboratory of Addiction Research of Zhejiang Province, Ningbo, Zhejiang, China
| | - Dan Fu
- School of Medicine, Ningbo University, Laboratory of Behavioral Neuroscience, Ningbo Kangning Hospital, Ningbo, Zhejiang, China,Key Laboratory of Addiction Research of Zhejiang Province, Ningbo, Zhejiang, China
| | - Zemin Xu
- School of Medicine, Ningbo University, Laboratory of Behavioral Neuroscience, Ningbo Kangning Hospital, Ningbo, Zhejiang, China,Key Laboratory of Addiction Research of Zhejiang Province, Ningbo, Zhejiang, China
| | - Majie Wang
- School of Medicine, Ningbo University, Laboratory of Behavioral Neuroscience, Ningbo Kangning Hospital, Ningbo, Zhejiang, China,Key Laboratory of Addiction Research of Zhejiang Province, Ningbo, Zhejiang, China
| | - Wenhua Zhou
- School of Medicine, Ningbo University, Laboratory of Behavioral Neuroscience, Ningbo Kangning Hospital, Ningbo, Zhejiang, China,Key Laboratory of Addiction Research of Zhejiang Province, Ningbo, Zhejiang, China,*Correspondence: Wenhua Zhou, ; Huifen Liu,
| | - Huifen Liu
- School of Medicine, Ningbo University, Laboratory of Behavioral Neuroscience, Ningbo Kangning Hospital, Ningbo, Zhejiang, China,Key Laboratory of Addiction Research of Zhejiang Province, Ningbo, Zhejiang, China,*Correspondence: Wenhua Zhou, ; Huifen Liu,
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9
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Ottonelli I, Sharma A, Ruozi B, Tosi G, Duskey JT, Vandelli MA, Lafuente JV, Nozari A, Muresanu DF, Buzoianu AD, Tian ZR, Zhang Z, Li C, Feng L, Wiklund L, Sharma HS. Nanowired Delivery of Curcumin Attenuates Methamphetamine Neurotoxicity and Elevates Levels of Dopamine and Brain-Derived Neurotrophic Factor. ADVANCES IN NEUROBIOLOGY 2023; 32:385-416. [PMID: 37480467 DOI: 10.1007/978-3-031-32997-5_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/24/2023]
Abstract
Curcumin is a well-known antioxidant used as traditional medicine in China and India since ages to treat variety of inflammatory ailments as a food supplement. Curcumin has antitumor properties with neuroprotective effects in Alzheimer's disease. Curcumin elevates brain-derived neurotrophic factor (BDNF) and dopamine (DA) levels in the brain indicating its role in substance abuse. Methamphetamine (METH) is one of the most abused substances in the world that induces profound neurotoxicity by inducing breakdown of the blood-brain barrier (BBB), vasogenic edema and cellular injuries. However, influence of curcumin on METH-induced neurotoxicity is still not well investigated. In this investigation, METH neurotoxicity and neuroprotective effects of curcumin nanodelivery were examined in a rat model. METH (20 mg/kg, i.p.) neurotoxicity is evident 4 h after its administration exhibiting breakdown of BBB to Evans blue albumin in the cerebral cortex, hippocampus, cerebellum, thalamus and hypothalamus associated with vasogenic brain edema as seen measured using water content in all these regions. Nissl attaining exhibited profound neuronal injuries in the regions of BBB damage. Normal curcumin (50 mg/kg, i.v.) 30 min after METH administration was able to reduce BBB breakdown and brain edema partially in some of the above brain regions. However, TiO2 nanowired delivery of curcumin (25 mg/kg, i.v.) significantly attenuated brain edema, neuronal injuries and the BBB leakage in all the brain areas. BDNF level showed a significant higher level in METH-treated rats as compared to saline-treated METH group. Significantly enhanced DA levels in METH-treated rats were also observed with nanowired delivery of curcumin. Normal curcumin was able to slightly elevate DA and BDNF levels in the selected brain regions. Taken together, our observations are the first to show that nanodelivery of curcumin induces superior neuroprotection in METH neurotoxicity probable by enhancing BDNF and DA levels in the brain, not reported earlier.
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Affiliation(s)
- Ilaria Ottonelli
- Te.far.t.I, Dept of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Aruna Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Surgical Sciences, Anesthesiology & Intensive Care Med., Uppsala University Hospital, Uppsala University, Uppsala, Sweden
| | - Barbara Ruozi
- Te.far.t.I, Dept of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Giovanni Tosi
- Te.far.t.I, Dept of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Jason Thomas Duskey
- Te.far.t.I, Dept of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Maria Angela Vandelli
- Te.far.t.I, Dept of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - José Vicente Lafuente
- LaNCE, Department Neuroscience, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain
| | - Ala Nozari
- Anesthesia and Critical Care, Chobanian & Avedisian School of Medicine, Boston University, Boston, MA, USA
| | - Dafin Fior Muresanu
- "RoNeuro" Institute for Neurological Research and Diagnosis, Cluj-Napoca, Romania
- Clinical Neurosciences, University of Medicine & Pharmacy, Cluj-Napoca, Romania
| | - Anca Dana Buzoianu
- Department of Clinical Pharmacology and Toxicology, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Z Ryan Tian
- Dept. Chemistry & Biochemistry, University of Arkansas, Fayetteville, AR, USA
| | - Zhiqiang Zhang
- Department of Neurosurgery, Chinese Medicine Hospital of Guangdong Province; The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Cong Li
- Department of Neurosurgery, Chinese Medicine Hospital of Guangdong Province; The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Lianyuan Feng
- Department of Neurology, Bethune International Peace Hospital, Zhongshan Road (West), Shijiazhuang, Hebei Province, China
| | - Lars Wiklund
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Surgical Sciences, Anesthesiology & Intensive Care Med., Uppsala University Hospital, Uppsala University, Uppsala, Sweden
| | - Hari Shanker Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Surgical Sciences, Anesthesiology & Intensive Care Med., Uppsala University Hospital, Uppsala University, Uppsala, Sweden.
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10
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Abdullah CS, Remex NS, Aishwarya R, Nitu S, Kolluru GK, Traylor J, Hartman B, King J, Bhuiyan MAN, Hall N, Murnane KS, Goeders NE, Kevil CG, Orr AW, Bhuiyan MS. Mitochondrial dysfunction and autophagy activation are associated with cardiomyopathy developed by extended methamphetamine self-administration in rats. Redox Biol 2022; 58:102523. [PMID: 36335762 PMCID: PMC9641018 DOI: 10.1016/j.redox.2022.102523] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 10/23/2022] [Indexed: 11/06/2022] Open
Abstract
The recent rise in illicit use of methamphetamine (METH), a highly addictive psychostimulant, is a huge health care burden due to its central and peripheral toxic effects. Mounting clinical studies have noted that METH use in humans is associated with the development of cardiomyopathy; however, preclinical studies and animal models to dissect detailed molecular mechanisms of METH-associated cardiomyopathy development are scarce. The present study utilized a unique very long-access binge and crash procedure of METH self-administration to characterize the sequelae of pathological alterations that occur with METH-associated cardiomyopathy. Rats were allowed to intravenously self-administer METH for 96 h continuous weekly sessions over 8 weeks. Cardiac function, histochemistry, ultrastructure, and biochemical experiments were performed 24 h after the cessation of drug administration. Voluntary METH self-administration induced pathological cardiac remodeling as indicated by cardiomyocyte hypertrophy, myocyte disarray, interstitial and perivascular fibrosis accompanied by compromised cardiac systolic function. Ultrastructural examination and native gel electrophoresis revealed altered mitochondrial morphology and reduced mitochondrial oxidative phosphorylation (OXPHOS) supercomplexes (SCs) stability and assembly in METH exposed hearts. Redox-sensitive assays revealed significantly attenuated mitochondrial respiratory complex activities with a compensatory increase in pyruvate dehydrogenase (PDH) activity reminiscent of metabolic remodeling. Increased autophagy flux and increased mitochondrial antioxidant protein level was observed in METH exposed heart. Treatment with mitoTEMPO reduced the autophagy level indicating the involvement of mitochondrial dysfunction in the adaptive activation of autophagy in METH exposed hearts. Altogether, we have reported a novel METH-associated cardiomyopathy model using voluntary drug seeking behavior. Our studies indicated that METH self-administration profoundly affects mitochondrial ultrastructure, OXPHOS SCs assembly and redox activity accompanied by increased PDH activity that may underlie observed cardiac dysfunction.
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Affiliation(s)
- Chowdhury S Abdullah
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Naznin Sultana Remex
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Richa Aishwarya
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Sadia Nitu
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Gopi K Kolluru
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - James Traylor
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Brandon Hartman
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Judy King
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Mohammad Alfrad Nobel Bhuiyan
- Department of Medicine, Division of Clinical Informatics, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Nicole Hall
- Department of Pharmacology, Toxicology and Neuroscience, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Kevin Sean Murnane
- Department of Pharmacology, Toxicology and Neuroscience, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA; Department of Psychiatry, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Nicholas E Goeders
- Department of Pharmacology, Toxicology and Neuroscience, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Christopher G Kevil
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA; Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - A Wayne Orr
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA; Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Md Shenuarin Bhuiyan
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA; Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA.
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11
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He H, Zhou S, Peng C, Ran W, Tong S, Hong L, Cai F, Jin W, Jiang Y, Li M, Wang X, Luo M, Wang W, Zhao K. Effects of resilience on impulsivity, cognition and depression during protracted withdrawal among Chinese male methamphetamine users. BMC Psychiatry 2022; 22:414. [PMID: 35729547 PMCID: PMC9215047 DOI: 10.1186/s12888-022-04041-8] [Citation(s) in RCA: 1] [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: 12/28/2021] [Accepted: 06/02/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Methamphetamine (METH) dependence is a complex and dynamic public health problem. Long-term abuse of METH can increase numerous risks of mental and physical problems. Currently, the methods to reduce METH dependence and improve the withdrawal symptoms are limited and ineffective. Resilience is seen as a multidimensional and dynamic capability to recover or bounce back from stressful events and is also generally considered as a protective factor against mental dysfunction. METHODS One hundred thirty-four males with METH dependence were consecutively recruited from Huanglong Compulsory Isolated Detoxification Center between 2019 and 2021, of whom 112 were into the group. The Connor-Davidson Resilience Scale (CD-RISC), Self-rating depression scale (SDS), Self-rating anxiety scale (SAS), Barratt Impulsiveness Scale-11(BIS-11), and the Repeatable Battery for the Assessment of Neuropsychological Status (Rbans) were used to evaluate resilience, depression, anxiety, impulsivity, and cognition respectively. RESULTS The results mainly indicated that high resilience group showed lower SDS, SAS and BIS-11 scores than low resilience group (all p < 0.05). Besides, the total scores of Rbans were higher in high resilience groups than low resilience group (both p < 0.05). Moreover, linear regression results showed that resilience may be influenced by the scores of SDS and SAS. CONCLUSIONS Resilience is negatively correlated with impulsivity and depression. Besides, it is also positively associated with cognitive function. Drug users with higher resilience may have a strong ability to mobilize psychological resources to create a good psychological environment, which may have a positive effect on the relief or improvement of symptoms.
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Affiliation(s)
- He He
- grid.268099.c0000 0001 0348 3990School of Mental Health, Wenzhou Medical University, Chashan Higher Education Park, Ouhai District, Wenzhou, 325000 China
| | - Siyao Zhou
- grid.268099.c0000 0001 0348 3990School of Mental Health, Wenzhou Medical University, Chashan Higher Education Park, Ouhai District, Wenzhou, 325000 China
| | - Chenhui Peng
- grid.268099.c0000 0001 0348 3990School of Mental Health, Wenzhou Medical University, Chashan Higher Education Park, Ouhai District, Wenzhou, 325000 China
| | - Wang Ran
- grid.13402.340000 0004 1759 700XThe Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Siyu Tong
- grid.268099.c0000 0001 0348 3990School of Mental Health, Wenzhou Medical University, Chashan Higher Education Park, Ouhai District, Wenzhou, 325000 China
| | - Lan Hong
- grid.268099.c0000 0001 0348 3990School of Mental Health, Wenzhou Medical University, Chashan Higher Education Park, Ouhai District, Wenzhou, 325000 China
| | - Fangfang Cai
- grid.268099.c0000 0001 0348 3990School of Mental Health, Wenzhou Medical University, Chashan Higher Education Park, Ouhai District, Wenzhou, 325000 China
| | - Wei Jin
- grid.268099.c0000 0001 0348 3990School of Mental Health, Wenzhou Medical University, Chashan Higher Education Park, Ouhai District, Wenzhou, 325000 China
| | - Yile Jiang
- grid.268099.c0000 0001 0348 3990School of Mental Health, Wenzhou Medical University, Chashan Higher Education Park, Ouhai District, Wenzhou, 325000 China
| | - Mengjia Li
- grid.268099.c0000 0001 0348 3990School of Mental Health, Wenzhou Medical University, Chashan Higher Education Park, Ouhai District, Wenzhou, 325000 China
| | - Xuanping Wang
- grid.268099.c0000 0001 0348 3990School of Mental Health, Wenzhou Medical University, Chashan Higher Education Park, Ouhai District, Wenzhou, 325000 China
| | - Mengdan Luo
- grid.268099.c0000 0001 0348 3990School of Mental Health, Wenzhou Medical University, Chashan Higher Education Park, Ouhai District, Wenzhou, 325000 China
| | - Wei Wang
- School of Mental Health, Wenzhou Medical University, Chashan Higher Education Park, Ouhai District, Wenzhou, 325000, China. .,The Affiliated Kangning Hospital of Wenzhou Medical University, Wenzhou, China.
| | - Ke Zhao
- School of Mental Health, Wenzhou Medical University, Chashan Higher Education Park, Ouhai District, Wenzhou, 325000, China. .,The Affiliated Kangning Hospital of Wenzhou Medical University, Wenzhou, China. .,School of Mental Health, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Wenzhou Medical University, Wenzhou, China.
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12
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Social Support and Drug Abstention Motivation among Chinese Male Drug Addicts: A Moderated Mediation Model of Self-Control and Sensation-Seeking. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19106015. [PMID: 35627551 PMCID: PMC9140880 DOI: 10.3390/ijerph19106015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/10/2022] [Accepted: 05/13/2022] [Indexed: 02/01/2023]
Abstract
The goal of this study is to examine how social support affects Chinese male drug addicts’ abstention motivation. To elucidate the mechanism as well as the boundary condition of the aforesaid influence, self-control and sensation-seeking were induced. Using the questionnaire method, the cross-sectional data were collected from 498 male drug addicts from one hospital and four compulsory isolation drug abstention centers in Central China region. The results indicated that social support has a positive direct and indirect effect on abstention motivation. The indirect influence is that the impact of social support on abstention motivation is mediated by self-control. The direct effect was moderated by sensation-seeking. Specifically, for individuals with low sensation-seeking, social support can significantly increase drug abstinence motivation, but this effect was not significant for those with high sensation-seeking. Theoretical and practical implications of the results were discussed.
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13
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Ye X, Li FR, Pan Q, Li Z, Yu GQ, Liu H, Liu J, Huai PC, Zhang FR. Prevalence and associated factors of sexually transmitted infections among methamphetamine users in Eastern China: a cross-sectional study. BMC Infect Dis 2022; 22:7. [PMID: 34983422 PMCID: PMC8725376 DOI: 10.1186/s12879-021-06987-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 12/14/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The reported incidence of sexually transmitted infections (STIs) in China has been increasing over the last decades, especially among drug users, which has become one of the main burdens of public health in China. This study was conducted to estimate the prevalence and associated factors of STIs among non-injecting methamphetamine (MA) users in Eastern China. METHODS A cross-sectional survey was conducted among 632 MA users in Eastern China in 2017. Demographic characteristics, sexual behaviors, behaviors of MA use and sexual health knowledge were collected through questionnaire. First pass urine specimens were collected and detected for deoxyribonucleic acid (DNA) of Neisseria gonorrhoeae (NG) and Chlamydia trachomatis (CT) with Nucleic Acid Amplification Technology (NAAT), while blood specimens were collected and detected for antibodies of Human immunodeficiency virus (HIV), Herpes simplex virus type-2 (HSV-2), and syphilis with enzyme-linked immune sorbent assay (ELISA). RESULTS Among the 632 MA users, 464 (73.42%) were males, 60.92% were < 35 years of age, 546 (86.39%) were Shandong residents. 317 (50.16%, 95% CI 46.26-54.06%) participants were tested positive for at least one kind of STIs, including 242 (38.29%, 95% CI 34.50-42.08%) for HSV-2, 107 (16.93%, 95% CI 14.01-19.85%) for active syphilis, 46 (7.28%, 95% CI 5.25-9.31%) for treated syphilis, 40 (6.33%, 95% CI 4.43-8.23%) for CT, 6 (0.95%, 95% CI 0.19-1.71%) for HIV, and 3 (0.47%, 95% CI 0.06-1.00%) for NG infection. 99 (15.66%, 95% CI 12.83-18.49%) participants were co-infected with two kinds of STIs, including 91 (14.40%, 95% CI 11.66-17.14%) participants were co-infected with HSV-2 and syphilis. 14 (2.22%, 95% CI 1.07-3.37%) participants were co-infected with three kinds of STIs, and 4 HIV positive participants were co-infected with both syphilis and HSV-2. In the multiple logistic regression analysis, the results showed that females (adjusted OR [AOR] = 7.30, 95% CI 4.34-12.30) and individuals ≥ 35 years of age (AOR = 2.97, 95% CI 2.04-4.32) were more likely to test positive for STIs among MA users, whereas participants who acquired sexual health knowledge primarily from the Internet (AOR = 0.57, 95% CI 0.40-0.82) and those whose regular partners did not use drugs (AOR = 0.59, 95% CI 0.37-0.94) were less likely. CONCLUSIONS This study found that the prevalence of HSV-2 and syphilis are alarming high among non-injecting MA users in Shandong Province in Eastern China. The prevention and control intervention of STIs among MA users in Shandong were needed, especially on females and MA users ≥ 35 years of age.
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Affiliation(s)
- Xing Ye
- Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical Sciences, 27397 Jingshi Road, Jinan, 250022, Shandong, China
| | - Fu-Rong Li
- Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical Sciences, 27397 Jingshi Road, Jinan, 250022, Shandong, China
| | - Qing Pan
- Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical Sciences, 27397 Jingshi Road, Jinan, 250022, Shandong, China
| | - Zhen Li
- Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical Sciences, 27397 Jingshi Road, Jinan, 250022, Shandong, China
| | - Gong-Qi Yu
- Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical Sciences, 27397 Jingshi Road, Jinan, 250022, Shandong, China
| | - Hong Liu
- Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical Sciences, 27397 Jingshi Road, Jinan, 250022, Shandong, China
| | - Jian Liu
- Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical Sciences, 27397 Jingshi Road, Jinan, 250022, Shandong, China
| | - Peng-Cheng Huai
- Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical Sciences, 27397 Jingshi Road, Jinan, 250022, Shandong, China.
| | - Fu-Ren Zhang
- Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical Sciences, 27397 Jingshi Road, Jinan, 250022, Shandong, China
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14
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Gagnon LR, Sadasivan C, Perera K, Oudit GY. Cardiac Complications of Common Drugs of Abuse: Pharmacology, Toxicology and Management. Can J Cardiol 2021; 38:1331-1341. [PMID: 34737034 DOI: 10.1016/j.cjca.2021.10.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 10/16/2021] [Accepted: 10/18/2021] [Indexed: 12/23/2022] Open
Abstract
Cardiovascular complications from drugs of abuse are becoming more apparent due to increased usage worldwide. Substance abuse can cause both acute and chronic cardiovascular complications and is increasing in prevalence especially in young adults. These substances contribute to the development of acute coronary syndrome, type II myocardial injury, arrhythmias, cardiomyopathies and have numerous other cardiovascular complications. Although no screening guidelines exist, clinical awareness of these potential complications and their prevention, clinical presentation, diagnosis, and treatment are critically important. Management of cardiovascular disease should be coupled with appropriate social and mental health interventions to provide sustained clinical benefit. The higher the number of substances used recreationally, the greater the risk of premature heart disease. Epidemiological studies showed that 1 in 5 young adults misuse several substances and often start using at younger ages with a greater risk for adverse health outcomes over the long-term. The aim of this review is to highlight the basic epidemiology, cardiac complications, and disease-specific treatment options of commonly abused substances including methamphetamine, cocaine, alcohol, anabolic-androgenic steroids, cannabis, and tobacco.
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Affiliation(s)
- Luke R Gagnon
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada; Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Chandu Sadasivan
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada; Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Kevin Perera
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada; Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Gavin Y Oudit
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada; Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Alberta, Canada.
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15
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Avila JA, Memos N, Aslan A, Andrejewski T, Luine VN, Serrano PA. Voluntary oral methamphetamine increases memory deficits and contextual sensitization during abstinence associated with decreased PKMζ and increased κOR in the hippocampus of female mice. J Psychopharmacol 2021; 35:1240-1252. [PMID: 34587831 PMCID: PMC9083019 DOI: 10.1177/02698811211048285] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Female populations exhibit vulnerabilities to psychostimulant addiction, as well as cognitive dysfunction following bouts of abuse. AIMS The goal for this study was to advance our understanding of the mechanisms that produce sex disparities in drug addiction. METHODS We used an animal model for voluntary oral methamphetamine administration (VOMA) and focused on male and female mice that consumed 7.6-8.2 mg/kg of methamphetamine (MA) per day during the last 18 days of the paradigm. RESULTS The VOMA-exposed female mice displayed increased locomotor activity in the drug-administration context compared to male mice, demonstrating sex-specific changes in contextual sensitization. During 2 weeks of forced abstinence, mice underwent further behavioral testing. We show that abstinence increased open-arm entries on the elevated plus maze in both sexes. There were no differences in immobility on the tail suspension test. In a hippocampal-dependent radial arm maze task, VOMA-treated female mice, but not male mice, showed working memory deficits. Hippocampal tissue was collected and analyzed using Western blotting. VOMA-exposed female mice exhibited increased kappa opioid receptor (κOR) expression in the hippocampus compared to male mice, suggesting a vulnerability toward abstinence-induced dysphoria. Female VOMA mice also exhibited a decrease in the memory protein marker, protein kinase M zeta (PKMζ), in the hippocampus. CONCLUSIONS Our study reveals sex-specific effects following abstinence from chronic MA consumption on hippocampal κOR and PKMζ expression, suggesting that these neural changes in female mice may underlie spatial memory deficits and identify an increased susceptibility to dysregulated neural mechanisms. These data validate VOMA as a model sensitive to sex differences in behavior and hippocampal neurochemistry following chronic MA exposure.
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Affiliation(s)
- Jorge A. Avila
- Department of Psychology, Hunter College, City University of New York, New York, NY 10065, USA.,The Graduate Center of CUNY, New York, NY 10016, USA
| | - Nicoletta Memos
- Department of Psychology, Hunter College, City University of New York, New York, NY 10065, USA.,The Graduate Center of CUNY, New York, NY 10016, USA
| | - Abdurrahman Aslan
- Department of Psychology, Hunter College, City University of New York, New York, NY 10065, USA.,Department of Pharmacology, Health Sciences Center, Louisiana State University, New Orleans, LA,Department of Pharmacology, Istinye University, Istanbul, Turkey
| | - Tytus Andrejewski
- Department of Psychology, Hunter College, City University of New York, New York, NY 10065, USA
| | - Victoria N. Luine
- Department of Psychology, Hunter College, City University of New York, New York, NY 10065, USA.,The Graduate Center of CUNY, New York, NY 10016, USA
| | - Peter A. Serrano
- Department of Psychology, Hunter College, City University of New York, New York, NY 10065, USA.,The Graduate Center of CUNY, New York, NY 10016, USA
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16
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Dean AC, Nurmi EL, Morales AM, Cho AK, Seaman LC, London ED. CYP2D6 genotype may moderate measures of brain structure in methamphetamine users. Addict Biol 2021; 26:e12950. [PMID: 32767519 PMCID: PMC7865018 DOI: 10.1111/adb.12950] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 06/19/2020] [Accepted: 07/17/2020] [Indexed: 01/04/2023]
Abstract
Chronic methamphetamine use is linked to abnormalities in brain structure, which may reflect neurotoxicity related to metabolism of the drug. As the cytochrome P450 2D6 (CYP2D6) enzyme is central to the metabolism of methamphetamine, genotypic variation in its activity may moderate effects of methamphetamine on brain structure and function. This study explored the relationship between CYP2D6 genotype and measures of brain structure and cognition in methamphetamine users. Based on the function of genetic variants, a CYP2D6 activity score was determined in 82 methamphetamine-dependent (Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition [DSM-IV] criteria) and 79 healthy-control participants who completed tests of cognitive function (i.e., attention, memory, and executive function); most were also evaluated with structural magnetic resonance imaging (MRI) (66 methamphetamine-dependent and 52 controls). The relationship between CYP2D6 activity score and whole brain cortical thickness differed by group (interaction p = 0.024), as increasing CYP2D6 activity was associated with thinner cortical thickness in the methamphetamine users (β = -0.254; p = 0.035), but not in control subjects (β = 0.095; p = 0.52). Interactions between CYP2D6 activity and group were nonsignificant for hippocampal volume (ps > 0.05), but both hippocampi showed trends similar to those observed for cortical thickness (negative relationships in methamphetamine users [ps < 0.05], and no relationships in controls [ps > 0.50]). Methamphetamine users had lower cognitive scores than control subjects (p = 0.007), but there was no interaction between CYP2D6 activity score and group on cognition (p > 0.05). Results suggest that CYP2D6 genotypes linked to higher enzymatic activity may confer risk for methamphetamine-induced deficits in brain structure. The behavioral consequences of these effects are unclear and warrant additional investigation.
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Affiliation(s)
- Andy C. Dean
- Department of Psychiatry and Biobehavioral Sciences, UCLA Semel Institute for Neuroscience, David Geffen School of Medicine, Los Angeles, CA, 90024, USA
- Brain Research Institute, David Geffen School of Medicine, Los Angeles, CA, 90024, USA
| | - Erika L. Nurmi
- Department of Psychiatry and Biobehavioral Sciences, UCLA Semel Institute for Neuroscience, David Geffen School of Medicine, Los Angeles, CA, 90024, USA
- Brain Research Institute, David Geffen School of Medicine, Los Angeles, CA, 90024, USA
- Department of Mental Health, VA Greater Los Angeles Healthcare System, Los Angeles, CA, 90073, USA
| | - Angelica M. Morales
- Department of Psychiatry, Oregon Health & Science University, Portland, OR 97239, USA
| | - Arthur K. Cho
- Environmental Health Sciences, UCLA Fielding School of Public Health, Los Angeles, CA 90024, USA
| | - Lauren C. Seaman
- Department of Psychiatry and Biobehavioral Sciences, UCLA Semel Institute for Neuroscience, David Geffen School of Medicine, Los Angeles, CA, 90024, USA
| | - Edythe D. London
- Department of Psychiatry and Biobehavioral Sciences, UCLA Semel Institute for Neuroscience, David Geffen School of Medicine, Los Angeles, CA, 90024, USA
- Brain Research Institute, David Geffen School of Medicine, Los Angeles, CA, 90024, USA
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, Los Angeles, CA, 90024 USA
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17
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Grotell M, den Hollander B, Jalkanen A, Törrönen E, Ihalainen J, de Miguel E, Dudek M, Kettunen MI, Hyytiä P, Forsberg MM, Kankuri E, Korpi ER. Alcohol Co-Administration Changes Mephedrone-Induced Alterations of Neuronal Activity. Front Pharmacol 2021; 12:679759. [PMID: 33995109 PMCID: PMC8115874 DOI: 10.3389/fphar.2021.679759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 04/12/2021] [Indexed: 11/13/2022] Open
Abstract
Mephedrone (4-MMC), despite its illegal status, is still a widely used psychoactive substance. Its effects closely mimic those of the classical stimulant drug methamphetamine (METH). Recent research suggests that unlike METH, 4-MMC is not neurotoxic on its own. However, the neurotoxic effects of 4-MMC may be precipitated under certain circumstances, such as administration at high ambient temperatures. Common use of 4-MMC in conjunction with alcohol raises the question whether this co-consumption could also precipitate neurotoxicity. A total of six groups of adolescent rats were treated twice daily for four consecutive days with vehicle, METH (5 mg/kg) or 4-MMC (30 mg/kg), with or without ethanol (1.5 g/kg). To investigate persistent delayed effects of the administrations at two weeks after the final treatments, manganese-enhanced magnetic resonance imaging brain scans were performed. Following the scans, brains were collected for Golgi staining and spine analysis. 4-MMC alone had only subtle effects on neuronal activity. When administered with ethanol, it produced a widespread pattern of deactivation, similar to what was seen with METH-treated rats. These effects were most profound in brain regions which are known to have high dopamine and serotonin activities including hippocampus, nucleus accumbens and caudate-putamen. In the regions showing the strongest activation changes, no morphological changes were observed in spine analysis. By itself 4-MMC showed few long-term effects. However, when co-administered with ethanol, the apparent functional adaptations were profound and comparable to those of neurotoxic METH.
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Affiliation(s)
- Milo Grotell
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Bjørnar den Hollander
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Aaro Jalkanen
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Essi Törrönen
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Jouni Ihalainen
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Elena de Miguel
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Mateusz Dudek
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Mikko I Kettunen
- Kuopio Biomedical Imaging Unit, A.I. Virtanen Institute for Molecular Sciences, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Petri Hyytiä
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Markus M Forsberg
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Esko Kankuri
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Esa R Korpi
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
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18
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Alsheikh MY. Post-Acute Withdrawal Syndrome: The Major Cause of Relapse among Psychoactive Substances Addicted Users. ARCHIVES OF PHARMACY PRACTICE 2021. [DOI: 10.51847/ioicfujpnm] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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19
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Abdullah CS, Aishwarya R, Alam S, Morshed M, Remex NS, Nitu S, Kolluru GK, Traylor J, Miriyala S, Panchatcharam M, Hartman B, King J, Bhuiyan MAN, Chandran S, Woolard MD, Yu X, Goeders NE, Dominic P, Arnold CL, Stokes K, Kevil CG, Orr AW, Bhuiyan MS. Methamphetamine induces cardiomyopathy by Sigmar1 inhibition-dependent impairment of mitochondrial dynamics and function. Commun Biol 2020; 3:682. [PMID: 33203971 PMCID: PMC7673131 DOI: 10.1038/s42003-020-01408-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Methamphetamine-associated cardiomyopathy is the leading cause of death linked with illicit drug use. Here we show that Sigmar1 is a therapeutic target for methamphetamine-associated cardiomyopathy and defined the molecular mechanisms using autopsy samples of human hearts, and a mouse model of "binge and crash" methamphetamine administration. Sigmar1 expression is significantly decreased in the hearts of human methamphetamine users and those of "binge and crash" methamphetamine-treated mice. The hearts of methamphetamine users also show signs of cardiomyopathy, including cellular injury, fibrosis, and enlargement of the heart. In addition, mice expose to "binge and crash" methamphetamine develop cardiac hypertrophy, fibrotic remodeling, and mitochondrial dysfunction leading to contractile dysfunction. Methamphetamine treatment inhibits Sigmar1, resulting in inactivation of the cAMP response element-binding protein (CREB), decreased expression of mitochondrial fission 1 protein (FIS1), and ultimately alteration of mitochondrial dynamics and function. Therefore, Sigmar1 is a viable therapeutic agent for protection against methamphetamine-associated cardiomyopathy.
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Affiliation(s)
- Chowdhury S Abdullah
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Richa Aishwarya
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Shafiul Alam
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Mahboob Morshed
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Naznin Sultana Remex
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Sadia Nitu
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Gopi K Kolluru
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - James Traylor
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Sumitra Miriyala
- Department of Cell Biology and Anatomy, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Manikandan Panchatcharam
- Department of Cell Biology and Anatomy, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Brandon Hartman
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Judy King
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | | | - Sunitha Chandran
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Matthew D Woolard
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Xiuping Yu
- Department of Biochemistry and Molecular Biology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Nicholas E Goeders
- Department of Pharmacology, Toxicology and Neuroscience, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Paari Dominic
- Department of Medicine, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Connie L Arnold
- Department of Medicine, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Karen Stokes
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Christopher G Kevil
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
- Department of Cell Biology and Anatomy, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - A Wayne Orr
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
- Department of Cell Biology and Anatomy, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA
| | - Md Shenuarin Bhuiyan
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA.
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, 71103, USA.
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Verdejo-Garcia A, Crossin R. Nutritional and metabolic alterations arising from stimulant use: A targeted review of an emerging field. Neurosci Biobehav Rev 2020; 120:303-306. [PMID: 33188822 DOI: 10.1016/j.neubiorev.2020.11.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 10/29/2020] [Accepted: 11/01/2020] [Indexed: 02/07/2023]
Abstract
People with stimulant use disorders are usually underweight. Current accepted knowledge is that they are skinny because stimulants suppress appetite - they eat less. But is it that simple? Here we review the relationship between stimulant use, food intake, metabolism and body weight, and highlight key points that may challenge current knowledge: 1) Stimulants interact with the hormonal signals that regulate appetite including ghrelin and leptin, and can produce long-term alterations in the ability to monitor and compensate energy deficits. 2) The diet of people with stimulant use disorders might be characterised by altered nutritional geometry, rather than overall reduction of food intake. 3) Long-term changes in homeostatic signals and nutrient intake can produce metabolic deficits that contribute to unhealthy low weight. Based on this knowledge we advocate for increasing awareness about the nuances of stimulant-related nutritional and metabolic deficits among addiction clinicians, and increased research on the interaction between stimulant use, appetite signaling, and metabolic deficits.
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Affiliation(s)
| | - Rose Crossin
- Department of Population Health, University of Otago, New Zealand; Florey Institute of Neuroscience and Mental Health, Australia
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21
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Chavoshi H, Boroujeni ME, Abdollahifar MA, Amini A, Tehrani AM, Moghaddam MH, Norozian M, Farahani RM, Aliaghaei A. From dysregulated microRNAs to structural alterations in the striatal region of METH-injected rats. J Chem Neuroanat 2020; 109:101854. [DOI: 10.1016/j.jchemneu.2020.101854] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 08/05/2020] [Accepted: 08/09/2020] [Indexed: 02/07/2023]
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22
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Ma Y, Bian C, Song D, Yao G, Nie R. 3,4-Methylenedioxymethamphetamine causes retinal damage in C57BL/6J mice. Hum Exp Toxicol 2020; 39:1556-1564. [PMID: 32552070 DOI: 10.1177/0960327120930253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
3,4-Methylenedioxymethamphetamine (MDMA) is a powerfully addictive psychostimulant with pronounced effects on the central nervous system, but the precise mechanism of MDMA-induced toxicity remains unclear, specifically on the retina. This study was performed to investigate the effects of MDMA treatment on the retina and explore the underlying mechanism. C57BL/6J mice were randomly divided into control and MDMA groups. Mice were treated with MDMA at progressively increasing doses (1-6 mg/kg) intraperitoneally 4 times per day. Electroretinography was used to test the retinal function. Pathological changes of the retina were examined by toluidine blue staining and terminal deoxynucleotidyl transferase deoxyuridine triphosphate nick end labeling assay. Enzyme-linked immunosorbent assays were used to measure the levels of cytokines in the retina. Real-time polymerase chain reaction and Western blot were used to measure gene and protein expression in the retina, respectively. Our study showed that MDMA treatment impaired retinal function and decreased retinal thickness. MDMA treatment also increased transforming growth factor β as well as inflammatory factors in the retina. Moreover, MDMA treatment increased protein expression of matrix metalloproteinases (MMPs) and decreased tight junction protein expression in the retina. Our study indicated that treatment of MDMA caused retinal damage in C57BL/6J mice, associated with an increase of MMPs and a decrease of tight junction proteins.
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Affiliation(s)
- Y Ma
- Department of Ophthalmology, Tai'an City Central Hospital, Tai'an, People's Republic of China
| | - C Bian
- Department of Ophthalmology, Tai'an City Central Hospital, Tai'an, People's Republic of China
- Department of Ophthalmology, The First People's Hospital of Tai'an, Tai'an, People's Republic of China
| | - D Song
- Department of Ophthalmology, Tai'an City Central Hospital, Tai'an, People's Republic of China
| | - G Yao
- Department of Ophthalmology, The First People's Hospital of Tai'an, Tai'an, People's Republic of China
| | - R Nie
- Department of Geriatrics III, Tai'an City Central Hospital, Tai'an, People's Republic of China
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23
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Subu R, Jayanthi S, Cadet JL. Compulsive methamphetamine taking induces autophagic and apoptotic markers in the rat dorsal striatum. Arch Toxicol 2020; 94:3515-3526. [PMID: 32676729 DOI: 10.1007/s00204-020-02844-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 07/09/2020] [Indexed: 01/14/2023]
Abstract
Methamphetamine (METH) use disorder (MUD) is often accompanied by psychotic symptoms, cognitive deficits, and pathological changes in the brains of users. Animals that experimenters injected with drugs also show neurodegenerative changes in their brains. Recently, we have been investigating METH-induced molecular and biochemical consequences in animals that had infused themselves with METH using the drug self-administration (SA) paradigm. In that model, footshocks administered contingently help to separate rats that had already escalated their METH intake into resilient-to-drug (shock-sensitive, SS) or compulsive (shock-resistant, SR) METH takers. Herein, we used that model to test the idea that compulsive METH takers might show evidence of drug-induced autophagic changes in their brains. There were significant increases in mRNA levels of autophagy-related genes including Atg2a, Atg5, Atg14, and Atg16L1 in the rat dorsal striatum. Levels of two autophagy biomarkers, autophagy activating kinase (ULK1) and phospho-Beclin1, were also increased. In addition, we found increased p53 but decreased Bcl-2 protein levels. Moreover, the expression of cleaved initiator caspase-9 and effector caspase-6 was higher in compulsive METH takers in comparison to shock-sensitive rats. When taken together, these results suggest that the striata of rats that had escalated and continue to take METH compulsively the presence of adverse consequences exhibit some pathological changes similar to those reported in post-mortem human striatal tissues. These results provide supporting evidence that compulsive METH taking is neurotoxic. Our observations also support the notion of developing neuro-regenerative agents to add to the therapeutic armamentarium against METH addiction.
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Affiliation(s)
- Rajeev Subu
- Molecular Neuropsychiatry Research Branch, DHHS/NIH/NIDA Intramural Research Program, 251 Bayview Boulevard, Baltimore, MD, 21224, USA
| | - Subramaniam Jayanthi
- Molecular Neuropsychiatry Research Branch, DHHS/NIH/NIDA Intramural Research Program, 251 Bayview Boulevard, Baltimore, MD, 21224, USA
| | - Jean Lud Cadet
- Molecular Neuropsychiatry Research Branch, DHHS/NIH/NIDA Intramural Research Program, 251 Bayview Boulevard, Baltimore, MD, 21224, USA.
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24
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Salani D, Valdes B, De Santis J, Zdanowicz M. Back With a Vengeance: The Reappearance of Methamphetamine and its Implications for Health Care Providers. J Nurse Pract 2020. [DOI: 10.1016/j.nurpra.2020.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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25
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Kesby JP, Chang A, Najera JA, Marcondes MCG, Semenova S. Brain Reward Function after Chronic and Binge Methamphetamine Regimens in Mice Expressing the HIV-1 TAT Protein. Curr HIV Res 2020; 17:126-133. [PMID: 31269883 DOI: 10.2174/1570162x17666190703165408] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 06/11/2019] [Accepted: 06/21/2019] [Indexed: 12/30/2022]
Abstract
BACKGROUND Methamphetamine abuse and human immunodeficiency virus (HIV) are common comorbidities. HIV-associated proteins, such as the regulatory protein TAT, may contribute to brain reward dysfunction, inducing an altered sensitivity to methamphetamine reward and/or withdrawal in this population. OBJECTIVE These studies examined the combined effects of TAT protein expression and, chronic and binge methamphetamine regimens on brain reward function. METHODS Transgenic mice with inducible brain expression of the TAT protein were exposed to either saline, a chronic, or a binge methamphetamine regimen. TAT expression was induced via doxycycline treatment during the last week of methamphetamine exposure. Brain reward function was assessed daily throughout the regimens, using the intracranial self-stimulation procedure, and after a subsequent acute methamphetamine challenge. RESULTS Both methamphetamine regimens induced withdrawal-related decreases in reward function. TAT expression substantially, but not significantly increased the withdrawal associated with exposure to the binge regimen compared to the chronic regimen, but did not alter the response to acute methamphetamine challenge. TAT expression also led to persistent changes in adenosine 2B receptor expression in the caudate putamen, regardless of methamphetamine exposure. These results suggest that TAT expression may differentially affect brain reward function, dependent on the pattern of methamphetamine exposure. CONCLUSION The subtle effects observed in these studies highlight that longer-term TAT expression, or its induction at earlier stages of methamphetamine exposure, may be more consequential at inducing behavioral and neurochemical effects.
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Affiliation(s)
- James P Kesby
- Department of Psychiatry, School of Medicine, University of California San Diego, La Jolla, CA, United States.,Queensland Brain Institute, The University of Queensland, St. Lucia, Qld, Australia.,UQ Centre for Clinical Research, The University of Queensland, Brisbane, Qld, Australia
| | - Ariel Chang
- Department of Psychiatry, School of Medicine, University of California San Diego, La Jolla, CA, United States
| | - Julia A Najera
- Department of Neurosciences, The Scripps Research Institute, La Jolla, CA, United States
| | - Maria Cecilia G Marcondes
- Department of Neurosciences, The Scripps Research Institute, La Jolla, CA, United States.,San Diego Biomedical Research Institute, San Diego, CA 92121, United States
| | - Svetlana Semenova
- Department of Psychiatry, School of Medicine, University of California San Diego, La Jolla, CA, United States
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26
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Sabrini S, Russell B, Wang G, Lin J, Kirk I, Curley L. Methamphetamine induces neuronal death: Evidence from rodent studies. Neurotoxicology 2019; 77:20-28. [PMID: 31812708 DOI: 10.1016/j.neuro.2019.12.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 10/23/2019] [Accepted: 12/04/2019] [Indexed: 12/19/2022]
Abstract
Animal studies have consistently observed neuronal death following methamphetamine (MA) administration, however, these have not been systematically reviewed. This systematic review aims to present the evidence for MA-induced neuronal death in animals (rodents) and identify the regions affected. Locating the brain regions in which neuronal death occurs in animal studies will provide valuable insight into the linkage between MA consumption and the structural alterations observed in the human brain. The data were collected from three databases: Scopus, Ovid, and the Web of Science. Thirty-seven studies met the inclusion criteria and were divided into two sub-groups, i.e. acute and repeated administration. Twenty-six (of 27) acute and ten (of 11) repeated administration studies observed neuronal death. A meta-analysis was not possible due to different variables between studies, i.e. species, treatment regimens, withdrawal periods, methods of quantification, and regions studied. Acute MA treatment induced neuronal death in the frontal cortex, striatum, and substantia nigra, but not in the hippocampus, whereas repeated MA administration led to neuronal loss in the hippocampus, frontal cortex, and striatum. In addition, when animals self-administered the drug, neuronal death was observed at much lower doses than the doses administered by experimenters. There is some overlap in the regions where neuronal death occurred in animals and the identified regions from human studies. For instance, gray matter deficits have been observed in the prefrontal cortex and hippocampus of MA users. The findings presented in this review implicate that not only does MA induce neuronal death in animals, but it also damages the same regions affected in human users. Despite the inter-species differences, animal studies have contributed significantly to addiction research, and are still of great assistance for future research with a more relevant model of compulsive drug use in humans.
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Affiliation(s)
- Sabrini Sabrini
- School of Pharmacy, Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland 1142 New Zealand.
| | - Bruce Russell
- School of Pharmacy, University of Otago, New Zealand.
| | - Grace Wang
- Department of Psychology, Faculty of Health and Environmental Sciences, Auckland University of Technology, New Zealand.
| | - Joanne Lin
- School of Pharmacy, Faculty of Medical and Health Sciences, The University of Auckland, New Zealand.
| | - Ian Kirk
- School of Psychology, Faculty of Science, The University of Auckland, New Zealand.
| | - Louise Curley
- School of Pharmacy, Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland 1142 New Zealand.
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Alisauskiene R, Løberg EM, Gjestad R, Kroken RA, Jørgensen HA, Johnsen E. The influence of substance use on the effectiveness of antipsychotic medication: a prospective, pragmatic study. Nord J Psychiatry 2019; 73:281-287. [PMID: 31140342 DOI: 10.1080/08039488.2019.1622152] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Background: Psychosis is associated with a high prevalence of substance use, leading to worsened prognosis. Less is known about how comorbid substance abuse may influence the effectiveness of antipsychotic medications. The aim of this study was to compare the effectiveness of second generation antipsychotics in patients with psychosis with and without substance use. Methods: All patients (n = 226) were aged >18 years old had symptom level scores of ≥4 on selected psychosis items on the Positive and Negative Syndrome Scale and met ICD-10 diagnostic criteria for psychosis. Information on substance use was collected based on the Clinician Drug Use Scale. Patients were grouped at baseline according to the presence of substance use, medication history and diagnosis group. Clinical symptoms at baseline and changes at follow-up were assessed with the PANSS. Results: At baseline about 30% of the patients used substances, most frequently cannabis followed by methamphetamine. About half (47%) of the patients had no prior exposure to antipsychotic medication at inclusion. Patients who had consumed substances showed no substantial differences in the PANSS score reduction as a result of antipsychotic medication compared to patients without substance. There were, however, some group differences in relation to pattern of change that were influenced by medication history. Substance use was found to be related to stronger reduction of positive symptoms from week 4 to week 27. Conclusion: Substance use alone did not influence antipsychotic effectiveness in this sample of patients with psychosis.
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Affiliation(s)
| | - Else-Marie Løberg
- a Division of Psychiatry , Haukeland University Hospital , Bergen , Norway.,b Department of Addiction Medicine , Haukeland University Hospital , Bergen , Norway.,c Department of Clinical Psychology , University of Bergen , Bergen , Norway
| | - Rolf Gjestad
- a Division of Psychiatry , Haukeland University Hospital , Bergen , Norway.,d Centre for Research and Education in Forensic Psychiatry , Haukeland University Hospital , Bergen , Norway
| | - Rune A Kroken
- a Division of Psychiatry , Haukeland University Hospital , Bergen , Norway.,e Department of Clinical Medicine , University of Bergen , Bergen , Norway
| | - Hugo A Jørgensen
- a Division of Psychiatry , Haukeland University Hospital , Bergen , Norway
| | - Erik Johnsen
- a Division of Psychiatry , Haukeland University Hospital , Bergen , Norway.,e Department of Clinical Medicine , University of Bergen , Bergen , Norway
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Wouldes TA, Lester BM. Stimulants: How big is the problem and what are the effects of prenatal exposure? Semin Fetal Neonatal Med 2019; 24:155-160. [PMID: 30803902 DOI: 10.1016/j.siny.2019.01.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Globally, cocaine use increased by 7%-18.2 million people in 2016 or 0.4% of the world population aged 15-64. In 2016, over 34 million (0.7%) people aged 15-64 used amphetamines and a further 0.4% used MDMA (Ecstasy). Women of child bearing age worldwide are increasingly using and becoming dependent on stimulants; and are, in turn, more vulnerable to sexually transmitted diseases, sexual violence, unplanned pregnancies and mental health problems. Stimulant use during pregnancy increases obstetric complications for the mother, increases the rate of preterm birth and decreases birth weight, length and head circumference for the exposed infant. No consistent signs of neonatal abstinence syndrome requiring pharmacological treatment have been identified for cocaine or methamphetamine, however, infants exposed to one or both drugs exhibit disorganized neurobehaviour at birth. Increased efforts worldwide are needed to determine the extent of maternal stimulant use and to prevent or identify and treat substance use early during pregnancy.
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Affiliation(s)
- Trecia A Wouldes
- Department of Psychological Medicine, Faculty of Medical and Health Science, The University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.
| | - Barry M Lester
- Center for the Study of Children at Risk, Warren Alpert Medical School of Brown University, Women & Infants Hospital of Rhode Island, 50 Holden Street, Providence, Rhode Island, 02908, USA.
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Voce A, Calabria B, Burns R, Castle D, McKetin R. A Systematic Review of the Symptom Profile and Course of Methamphetamine-Associated Psychosis Substance Use and Misuse. Subst Use Misuse 2019; 54:549-559. [PMID: 30693832 DOI: 10.1080/10826084.2018.1521430] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
OBJECTIVES The psychiatric symptom profile of methamphetamine-associated psychosis (MAP) has varied considerably across studies of different research designs. We performed a systematic review to examine the available evidence for specific psychotic symptoms associated with MAP, including the clinical course and longitudinal changes in this symptom profile. METHODS Five key electronic databases were searched to identify studies that examined the symptom profile or clinical course of MAP in individuals identified as having MAP. The reporting of specific psychiatric symptoms, and duration of symptoms where available, was recorded for each study. RESULTS Ninety-four articles were identified (n = 7387), including case-control (k = 29), cross-sectional (k = 20), experimental (k = 6), case report (k = 29), and longitudinal (k = 20) studies. Persecutory delusions, auditory and visual auditory hallucinations were by far the most commonly reported symptoms (reported in 65-84% of studies). Hostility, conceptual disorganization, and depression were reported in a large proportion of studies (31-53%). Negative symptoms were mostly absent (<20%). The median percentage of participants with persistent psychotic symptoms (>1 month duration) across studies was 25% (excluding case reports). CONCLUSION Persecutory delusions, auditory and visual hallucinations, hostility, depression and conceptual disorganization are central to MAP, whereas negative psychotic symptoms are typically absent. An overrepresentation of institutionalized or male participants may have overemphasized negative symptoms and underreported affective symptoms in past research. Symptoms of MAP may persist beyond one month after drug cessation in some individuals. Clinicians are encouraged to manage affective symptoms in MAP individuals, and monitor for the development of chronic psychotic symptoms.
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Affiliation(s)
- Alexandra Voce
- a Centre for Research on Ageing, Health and Wellbeing , Australian National University , Acton , Australia
| | - Bianca Calabria
- b National Centre for Epidemiology and Population Health , Australian National University , Acton , Australia.,c National Drug and Alcohol Research Centre , University of New South Wales , Randwick , Australia
| | - Richard Burns
- a Centre for Research on Ageing, Health and Wellbeing , Australian National University , Acton , Australia
| | - David Castle
- d St Vincent's Hospital , Fitzroy , Australia.,e Department of Psychiatry , University of Melbourne , Melbourne , Australia
| | - Rebecca McKetin
- c National Drug and Alcohol Research Centre , University of New South Wales , Randwick , Australia.,f National Drug Research Institute , Curtin University , Perth , Australia
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Holubová A, Lukášková I, Tomášová N, Šuhajdová M, Šlamberová R. Early Postnatal Stress Impairs Cognitive Functions of Male Rats Persisting Until Adulthood. Front Behav Neurosci 2018; 12:176. [PMID: 30174595 PMCID: PMC6107702 DOI: 10.3389/fnbeh.2018.00176] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 07/27/2018] [Indexed: 11/25/2022] Open
Abstract
Methamphetamine (MA) is the most abused “hard” illicit drug in the Czech Republic. Drugs abused during pregnancy are not hazardous merely to the mother, but also to developing fetuses. The offspring of drug-addicted mothers are also often exposed to perinatal stressors that may impair brain development of affected progeny. The present study examines the effect of perinatal stressors and drug exposure on cognitive function in male progeny. In the present study, rat mothers were divided into three groups according to drug treatment during pregnancy: controls (C); saline (SA, s.c., 1 ml/kg); MA (s.c., 5 mg/ml/kg). Litters were divided into two groups according to postnatal stressors: non-stressed controls (N); Maternal separation (MS). For evaluation of learning and memory, adult male progeny were tested in the Morris Water Maze (MWM). Our results revealed no significant effects caused by prenatal drug or prenatal stress exposure. On the other hand, chronic postnatal stress, mediated by MS, significantly impaired learning on the Place Navigation test. In addition, MS was associated with changes in search strategies on the Place Navigation, Probe, and Memory Recall tests. Specifically, postnatal stress increased thigmotaxis, indicating less awareness of the hidden platform. In conclusion, the present study provides evidence that exposure to early postnatal stress significantly impairs cognitive functions of male rats, which persists into adulthood.
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Affiliation(s)
- Anna Holubová
- Department of Physiology, Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Ivana Lukášková
- Department of Physiology, Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Nikol Tomášová
- Department of Physiology, Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Mária Šuhajdová
- Department of Physiology, Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Romana Šlamberová
- Department of Physiology, Third Faculty of Medicine, Charles University, Prague, Czechia
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31
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Xu S, Tu S, Gao J, Liu J, Guo Z, Zhang J, Liu X, Liang J, Huang Y, Han M. Protective and restorative effects of the traditional Chinese medicine Jitai tablet against methamphetamine-induced dopaminergic neurotoxicity. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 18:76. [PMID: 29475448 PMCID: PMC6389157 DOI: 10.1186/s12906-018-2094-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 01/16/2018] [Indexed: 01/09/2023]
Abstract
Background Methamphetamine (METH) is a psychostimulant with high abuse liability that affects the monoamine neurotransmitter systems, particularly the dopamine system. Currently there are no effective medications for the treatment of METH abuse to restore METH-induced dopaminergic dysfunction. The Jitai tablet (JTT), a commercial traditional Chinese medicinal preparation, has been shown to modulate the dopaminergic function both in heroin addicts and in morphine-dependent rats. The purpose of this study was to investigate, in a rodent model, whether JTT can protect against METH-induced neurotoxicity, and/or restore METH-damaged dopaminergic function. Methods Immunohistochemical staining and/or autoradiography staining were used to detect tyrosine hydroxylase (TH) expression in the substantia nigra, and to examine the levels of dopamine transporter (DAT), dopamine D2 receptor (D2R) and TH levels in the striatum. Using a stereotyped behavior rating scale, we evaluated the inhibitory effect of JTT on METH-induced behavioral sensitization. Results Repeated METH administration induced obvious stereotyped behavior and neurotoxicity on the dopaminergic system. Pre-treatment with JTT significantly attenuated METH-induced stereotyped responses, and interdicted METH-induced changes in the levels of DAT, D2R and TH expression. Treatment with JTT after METH administration restored DAT, D2R and TH expression to normal levels. Conclusions Our results indicated that JTT protects against METH-induced neurotoxicity and restores the dopaminergic function, and thus might be a potential treatment for the dopaminergic deficits associated with METH abuse.
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Morais APD, Pita IR, Fontes‐Ribeiro CA, Pereira FC. The neurobiological mechanisms of physical exercise in methamphetamine addiction. CNS Neurosci Ther 2018; 24:85-97. [PMID: 29266758 PMCID: PMC6489779 DOI: 10.1111/cns.12788] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 11/28/2017] [Accepted: 11/30/2017] [Indexed: 12/15/2022] Open
Abstract
Methamphetamine (METH) is the primary drug within amphetamine-type stimulants which are the second most abused group of drugs worldwide. There is no pharmacological treatment addressed specifically to METH addiction, and behavioral therapy is shadowed by poor long-term recovery and relapse. Therefore, novel approaches to manage METH addiction are an urgent need. This review aims to describe the current state of physical exercise use on methamphetamine addiction management. The following searching terms in PubMed were used: ("physical exercise" OR "exercise") AND "methamphetamine." Relevant references from key publications and gray literature were also reviewed to identify additional citations for inclusion. Original investigation regarding physical exercise and methamphetamine addiction (clinical data) or neurobiological mechanisms of physical exercise in animal models of methamphetamine administration (preclinical data) was included. Overall, METH users demonstrated improvements, including better fitness and emotional measures, lower relapse rates, and sustained abstinence when compared to nonexercised individuals. The neurobiological mechanisms of physical exercise in METH users seem to reflect an interplay of several agents, including neurochemicals, oxidative stress, neurogenesis, gliogenesis, and blood-brain barrier as disclosed by preclinical data. Exercise-based interventions alone or as a conjoint therapy may be a useful tool for managing METH addiction.
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Affiliation(s)
- António Pedro Delgado Morais
- Institute of Pharmacology and Experimental Therapeutics/IBILIFaculty of MedicineUniversity of CoimbraCoimbraPortugal
| | - Inês Roque Pita
- Institute of Pharmacology and Experimental Therapeutics/IBILIFaculty of MedicineUniversity of CoimbraCoimbraPortugal
| | - Carlos Alberto Fontes‐Ribeiro
- Institute of Pharmacology and Experimental Therapeutics/IBILIFaculty of MedicineUniversity of CoimbraCoimbraPortugal
- CNC.IBILI—University of CoimbraCoimbraPortugal
| | - Frederico Costa Pereira
- Institute of Pharmacology and Experimental Therapeutics/IBILIFaculty of MedicineUniversity of CoimbraCoimbraPortugal
- CNC.IBILI—University of CoimbraCoimbraPortugal
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Kesby JP, Chang A, Markou A, Semenova S. Modeling human methamphetamine use patterns in mice: chronic and binge methamphetamine exposure, reward function and neurochemistry. Addict Biol 2018; 23:206-218. [PMID: 28224681 PMCID: PMC5565728 DOI: 10.1111/adb.12502] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 01/26/2017] [Accepted: 02/03/2017] [Indexed: 11/29/2022]
Abstract
Different methamphetamine use patterns in human subjects may contribute to inconsistent findings regarding the effects of methamphetamine abuse on brain and behavior. The present study investigated whether human-derived chronic and binge methamphetamine use patterns have differential effects on reward and neurochemistry in mice. Brain reward function in mice was evaluated during acute/prolonged withdrawal, and in response to methamphetamine challenge using the intracranial self-stimulation procedure. Brain dopaminergic, serotonergic and glutamatergic neurochemistry was determined with high-performance liquid chromatography. Chronic and binge regimens induced withdrawal-related decreases in reward function that were more severe during the binge regimen during cycles 1-2. Despite large differences in methamphetamine dose, both regimens induced similar reward deficits during cycles 3-4. Neither methamphetamine regimen led to persistent alterations in the sensitivity to the reward-enhancing effects of acute methamphetamine challenge. The binge regimen severely depleted striatal dopamine levels and increased brain glutamine levels. The chronic regimen had milder effects on striatal dopamine levels and altered cortical dopamine and serotonin levels. This work highlights that the magnitude of acute/prolonged withdrawal may not reflect amount or frequency of methamphetamine intake. In contrast, the array of underlying neurochemical alterations was methamphetamine regimen dependent. Thus, stratifying methamphetamine-dependent individuals based on use pattern may help to cater therapeutic interventions more appropriately by targeting use pattern-specific neurotransmitter systems.
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Affiliation(s)
- James P Kesby
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA
- Queensland Brain Institute, The University of Queensland, St. Lucia, Qld, Australia
| | - Ariel Chang
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA
| | - Athina Markou
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA
| | - Svetlana Semenova
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA
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Borgmann K, Ghorpade A. Methamphetamine Augments Concurrent Astrocyte Mitochondrial Stress, Oxidative Burden, and Antioxidant Capacity: Tipping the Balance in HIV-Associated Neurodegeneration. Neurotox Res 2017; 33:433-447. [PMID: 28993979 DOI: 10.1007/s12640-017-9812-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 08/15/2017] [Accepted: 08/31/2017] [Indexed: 02/06/2023]
Abstract
Methamphetamine (METH) use, with and without human immunodeficiency virus (HIV)-1 comorbidity, exacerbates neurocognitive decline. Oxidative stress is a probable neurotoxic mechanism during HIV-1 central nervous system infection and METH abuse, as viral proteins, antiretroviral therapy and METH have each been shown to induce mitochondrial dysfunction. However, the mechanisms regulating mitochondrial homeostasis and overall oxidative burden in astrocytes are not well understood in the context of HIV-1 infection and METH abuse. Here, we report METH-mediated dysregulation of astrocyte mitochondrial morphology and function during prolonged exposure to low levels of METH. Mitochondria became larger and more rod shaped with METH when assessed by machine learning, segmentation analyses. These changes may be mediated by elevated mitofusin expression coupled with inhibitory phosphorylation of dynamin-related protein-1, which regulate mitochondrial fusion and fission, respectively. While METH decreased oxygen consumption and ATP levels during acute exposure, chronic treatment of 1 to 2 weeks significantly enhanced both when tested in the absence of METH. Together, these changes significantly increased not only expression of antioxidant proteins, augmenting the astrocyte's oxidative capacity, but also oxidative damage. We propose that targeting astrocytes to reduce their overall oxidative burden and expand their antioxidant capacity could ultimately tip the balance from neurotoxicity towards neuroprotection.
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Affiliation(s)
- Kathleen Borgmann
- Institute for Molecular Medicine, University of North Texas Health Science Center, 3500 Camp Bowie Blvd, Fort Worth, TX, 76107, USA
| | - Anuja Ghorpade
- Institute for Molecular Medicine, University of North Texas Health Science Center, 3500 Camp Bowie Blvd, Fort Worth, TX, 76107, USA.
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Naltrexone moderates the relationship between cue-induced craving and subjective response to methamphetamine in individuals with methamphetamine use disorder. Psychopharmacology (Berl) 2017; 234:1997-2007. [PMID: 28357460 PMCID: PMC5480611 DOI: 10.1007/s00213-017-4607-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 03/14/2017] [Indexed: 01/03/2023]
Abstract
RATIONALE Reductions in cue-induced craving and subjective response to drugs of abuse are commonly used as initial outcome measures when testing novel medications for the treatment of addiction. Yet neither the relationship between these two measures at the individual level nor the moderating effects of pharmacotherapies on this relationship has been examined. OBJECTIVE This secondary data analysis sought to examine (1) the predictive relationship between cue-induced craving and subsequent acute subjective response to methamphetamine (MA) and (2) whether the opioid-receptor antagonist naltrexone moderated this association in a sample of non-treatment-seeking individuals who met DSM-IV criteria for MA use disorder (abuse or dependence). METHODS Participants (n = 30) completed two 4-day medication regimens (oral naltrexone 50 mg or placebo, in a randomized, counterbalanced, and double-blind fashion). On day 4 of each medication regimen, participants completed a cue-reactivity paradigm followed by intravenous MA administration. Methamphetamine craving was assessed after the cue-reactivity paradigm, and subjective response to MA was assessed during MA infusion. RESULTS Cue-induced craving for MA was positively associated with post-infusion subjective MA effects, including positive (i.e., stimulation, good effects, feel drug, high), negative (i.e., anxious and depressed), and craving-related (i.e., want more, would like access to drug, crave) responses. Naltrexone, vs. placebo, significantly reduced the association between cue-induced craving and positive subjective response to MA. CONCLUSIONS The findings indicate that naltrexone moderates the predictive relationship between cue-induced craving and positive subjective effects of MA, thereby suggesting a behavioral mechanism by which naltrexone may be efficacious in treating MA use disorder.
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Shabani S, Houlton SK, Hellmuth L, Mojica E, Mootz JRK, Zhu Z, Reed C, Phillips TJ. A Mouse Model for Binge-Level Methamphetamine Use. Front Neurosci 2016; 10:493. [PMID: 27853417 PMCID: PMC5090006 DOI: 10.3389/fnins.2016.00493] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 10/14/2016] [Indexed: 11/21/2022] Open
Abstract
Binge/crash cycles of methamphetamine (MA) use are frequently reported by individuals suffering from MA use disorders. A MA binge is self-reported as multiple daily doses that commonly accumulate to 800 mg/day (~10 mg/kg/day for a 170 pound human). A genetic animal model with a similar vulnerability to binge-level MA intake is missing. We used selectively bred MA high drinking (MAHDR) and low drinking (MALDR) mouse lines to determine whether several procedural variations would result in binge-level MA intake. Data were also collected in two progenitor populations of the MA drinking lines, the DBA/2J (D2) strain and the F2 cross of the D2 and C57BL/6J strains. The impact of 3 factors was examined: (1) concentration of MA in the two-bottle choice procedure used for selective breeding; (2) ratio of bottles containing MA vs. water, and (3) length of the withdrawal (or abstinence) period between MA drinking sessions. When MA concentration was progressively increased every 4 days in 20 mg/l amounts from 20 to 140 mg/l, maximum intake in MALDR mice was 1.1 mg/kg, whereas MAHDR mice consumed as much as 14.6 mg/kg. When these concentrations were tested in a multiple bottle choice procedure, the highest ratio of MA to water bottles (3:1) was associated with escalated MA intake of up to 29.1 mg/kg in MAHDR mice and 12.0 mg/kg in F2 mice; MALDR mice did not show a ratio-dependent escalation in MA intake. Finally, MAHDR and D2 mice were offered 3 bottles of MA vs. water at increasing concentrations from 20 to 80 mg/l, and tested under an intermittent 6-h withdrawal period, which was lengthened to 30 h (D2 mice) or to 30 or 78 h (MAHDR). D2 and MAHDR mice initially consumed similar amounts of 14–16 mg/kg MA, but D2 mice reduced their MA intake 3-fold after introduction of 30-h abstinence periods, whereas MAHDR mice retained their high level of intake regardless of withdrawal period. MAHDR mice provide a genetic model of binge-level MA intake appropriate for the study of associated MA-induced neurobiological changes and pharmaceutical treatments.
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Affiliation(s)
| | | | - Laura Hellmuth
- Department of Biology, Minot State University Minot, ND, USA
| | - Erika Mojica
- Department of Biology, Minot State University Minot, ND, USA
| | - John R K Mootz
- Department of Behavioral Neuroscience and Methamphetamine Abuse Research Center, Oregon Health & Science University Portland, OR, USA
| | - Zhen Zhu
- Department of Behavioral Neuroscience and Methamphetamine Abuse Research Center, Oregon Health & Science University Portland, OR, USA
| | - Cheryl Reed
- Department of Behavioral Neuroscience and Methamphetamine Abuse Research Center, Oregon Health & Science University Portland, OR, USA
| | - Tamara J Phillips
- Department of Behavioral Neuroscience and Methamphetamine Abuse Research Center, Oregon Health & Science UniversityPortland, OR, USA; VA Portland Health Care SystemPortland, OR, USA
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Exercise protects against methamphetamine-induced aberrant neurogenesis. Sci Rep 2016; 6:34111. [PMID: 27677455 PMCID: PMC5039713 DOI: 10.1038/srep34111] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 09/06/2016] [Indexed: 12/15/2022] Open
Abstract
While no effective therapy is available for the treatment of methamphetamine (METH)-induced neurotoxicity, aerobic exercise is being proposed to improve depressive symptoms and substance abuse outcomes. The present study focuses on the effect of exercise on METH-induced aberrant neurogenesis in the hippocampal dentate gyrus in the context of the blood-brain barrier (BBB) pathology. Mice were administered with METH or saline by i.p. injections for 5 days with an escalating dose regimen. One set of mice was sacrificed 24 h post last injection of METH, and the remaining animals were either subjected to voluntary wheel running (exercised mice) or remained in sedentary housing (sedentary mice). METH administration decreased expression of tight junction (TJ) proteins and increased BBB permeability in the hippocampus. These changes were preserved post METH administration in sedentary mice and were associated with the development of significant aberrations of neural differentiation. Exercise protected against these effects by enhancing the protein expression of TJ proteins, stabilizing the BBB integrity, and enhancing the neural differentiation. In addition, exercise protected against METH-induced systemic increase in inflammatory cytokine levels. These results suggest that exercise can attenuate METH-induced neurotoxicity by protecting against the BBB disruption and related microenvironmental changes in the hippocampus.
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Soontornniyomkij V, Kesby JP, Morgan EE, Bischoff-Grethe A, Minassian A, Brown GG, Grant I. Effects of HIV and Methamphetamine on Brain and Behavior: Evidence from Human Studies and Animal Models. J Neuroimmune Pharmacol 2016; 11:495-510. [PMID: 27484318 PMCID: PMC4985024 DOI: 10.1007/s11481-016-9699-0] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 07/26/2016] [Indexed: 10/21/2022]
Abstract
Methamphetamine (Meth) use is frequent among HIV-infected persons. Combined HIV and Meth insults may exacerbate neural injury in vulnerable neuroanatomic structures or circuitries in the brain, leading to increased behavioral disturbance and cognitive impairment. While acute and chronic effects of Meth in humans and animal models have been studied for decades, the neurobehavioral effects of Meth in the context of HIV infection are much less explored. In-depth understanding of the scope of neurobehavioral phenotypes and mechanisms in HIV/Meth intersection is needed. The present report summarizes published research findings, as well as unpublished data, in humans and animal models with regard to neurobehavioral disturbance, neuroimaging, and neuropathology, and in vitro experimental systems, with an emphasis on findings emerging from the National Institute on Drug Abuse (NIDA) funded Translational Methamphetamine AIDS Research Center (TMARC). Results from human studies and animal (primarily HIV-1 gp120 transgenic mouse) models thus far suggest that combined HIV and Meth insults increase the likelihood of neural injury in the brain. The neurobehavioral effects include cognitive impairment and increased tendencies toward impaired behavioral inhibition and social cognition. These impairments are relevant to behaviors that affect personal and social risks, e.g. worse medication adherence, riskier behaviors, and greater likelihood of HIV transmission. The underlying mechanisms may include electrochemical changes in neuronal circuitries, injury to white matter microstructures, synaptodendritic damage, and selective neuronal loss. Utilization of research methodologies that are valid across species is instrumental in generating new knowledge with clinical translational value.
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Affiliation(s)
- Virawudh Soontornniyomkij
- Department of Psychiatry, School of Medicine, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0603, USA.
| | - James P Kesby
- Department of Psychiatry, School of Medicine, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0603, USA
- Queensland Brain Institute, The University of Queensland, St. Lucia, Qld, Australia
| | - Erin E Morgan
- Department of Psychiatry, School of Medicine, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0603, USA
| | - Amanda Bischoff-Grethe
- Department of Psychiatry, School of Medicine, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0603, USA
| | - Arpi Minassian
- Department of Psychiatry, School of Medicine, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0603, USA
| | - Gregory G Brown
- Department of Psychiatry, School of Medicine, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0603, USA
| | - Igor Grant
- Department of Psychiatry, School of Medicine, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0603, USA
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Krasnova IN, Justinova Z, Cadet JL. Methamphetamine addiction: involvement of CREB and neuroinflammatory signaling pathways. Psychopharmacology (Berl) 2016; 233:1945-62. [PMID: 26873080 PMCID: PMC5627363 DOI: 10.1007/s00213-016-4235-8] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 02/04/2016] [Indexed: 02/06/2023]
Abstract
RATIONALE AND OBJECTIVES Addiction to psychostimulant methamphetamine (METH) remains a major public health problem in the world. Animal models that use METH self-administration incorporate many features of human drug-taking behavior and are very helpful in elucidating mechanisms underlying METH addiction. These models are also helping to decipher the neurobiological substrates of associated neuropsychiatric complications. This review summarizes our work on the influence of METH self-administration on dopamine systems, transcription and immune responses in the brain. METHODS We used the rat model of METH self-administration with extended access (15 h/day for eight consecutive days) to investigate the effects of voluntary METH intake on the markers of dopamine system integrity and changes in gene expression observed in the brain at 2 h-1 month after cessation of drug exposure. RESULTS Extended access to METH self-administration caused changes in the rat brain that are consistent with clinical findings reported in neuroimaging and postmortem studies of human METH addicts. In addition, gene expression studies using striatal tissues from METH self-administering rats revealed increased expression of genes involved in cAMP response element binding protein (CREB) signaling pathway and in the activation of neuroinflammatory response in the brain. CONCLUSION These data show an association of METH exposure with activation of neuroplastic and neuroinflammatory cascades in the brain. The neuroplastic changes may be involved in promoting METH addiction. Neuroinflammatory processes in the striatum may underlie cognitive deficits, depression, and parkinsonism reported in METH addicts. Therapeutic approaches that include suppression of neuroinflammation may be beneficial to addicted patients.
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Affiliation(s)
- Irina N. Krasnova
- Molecular Neuropsychiatry Research Branch, Intramural Research Program, NIDA, NIH, DHHS, Baltimore, MD, USA,Corresponding authors: Irina N. Krasnova, Ph.D., Molecular Neuropsychiatry Research Branch, NIDA/NIH/DHHS, 251 Bayview Blvd, Baltimore, MD 21224, Tel. 443-74-2658, Fax 443-740-2856, , Jean Lud Cadet, M.D., Molecular Neuropsychiatry Research Branch, NIDA/NIH/DHHS, 251 Bayview Blvd., Baltimore, MD 21224, Tel. 443-740-2656, Fax 443-740-2856,
| | - Zuzana Justinova
- Behavioral Neuroscience Research Branch, Intramural Research Program, NIDA, NIH, DHHS Baltimore, MD 21224, USA
| | - Jean Lud Cadet
- Molecular Neuropsychiatry Research Branch, Intramural Research Program, NIDA, NIH, DHHS, 251 Bayview Blvd, Baltimore, MD, 21224, USA.
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Johnson Z, Venters J, Guarraci FA, Zewail-Foote M. Methamphetamine induces DNA damage in specific regions of the female rat brain. Clin Exp Pharmacol Physiol 2016; 42:570-5. [PMID: 25867833 DOI: 10.1111/1440-1681.12404] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 03/06/2015] [Accepted: 04/03/2015] [Indexed: 11/29/2022]
Abstract
Methamphetamine (METH) is a highly addictive psychostimulant that has been shown to produce neurotoxicity. Methamphetamine increases the release of dopamine by reversing the direction of monoamine transporter proteins, leading to the formation of reactive oxygen species in the brain. In this study, we examined the effect of METH on DNA damage in vivo using the single cell gel electrophoresis assay (comet assay) under two different conditions. Rats treated with multiple doses of METH (10 mg/kg × 4) showed significant levels of DNA damage in the nucleus accumbens and striatum, both dopamine-rich areas. In contrast, a single dose of METH did not lead to significant levels of DNA damage in any of the dopamine-rich brain regions that were tested. Overall, the results of our study demonstrate that METH produces greater oxidative DNA damage in brain areas that receive greater dopamine innervation.
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Affiliation(s)
- Zane Johnson
- Department of Chemistry and Biochemistry, Southwestern University, Georgetown, TX, USA
| | - Jace Venters
- Department of Chemistry and Biochemistry, Southwestern University, Georgetown, TX, USA
| | - Fay A Guarraci
- Department of Psychology, Southwestern University, Georgetown, TX, USA
| | - Maha Zewail-Foote
- Department of Chemistry and Biochemistry, Southwestern University, Georgetown, TX, USA
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Clinical neuroscience of amphetamine-type stimulants. PROGRESS IN BRAIN RESEARCH 2016; 223:295-310. [DOI: 10.1016/bs.pbr.2015.07.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Methamphetamine-induced neuronal necrosis: the role of electrographic seizure discharges. Neurotoxicology 2015; 52:84-8. [PMID: 26562800 DOI: 10.1016/j.neuro.2015.11.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 11/06/2015] [Accepted: 11/06/2015] [Indexed: 11/23/2022]
Abstract
We have evidence that methamphetamine (METH)-induced neuronal death is morphologically necrotic, not apoptotic, as is currently believed, and that electrographic seizures may be responsible. We administered 40mg/kg i.p. to 12 male C57BL/6 mice and monitored EEGs continuously and rectal temperatures every 15min, keeping rectal temperatures <41.0°C. Seven of the 12 mice had repetitive electrographic seizure discharges (RESDs) and 5 did not. The RESDs were often not accompanied by behavioral signs of seizures-i.e., they were often not accompanied by clonic forelimb movements. The 7 mice with RESDs had acidophilic neurons (the H&E light-microscopic equivalent of necrotic neurons by ultrastructural examination) in all of 7 brain regions (hippocampal CA1, CA2, CA3 and hilus, amygdala, piriform cortex and entorhinal cortex), the same brain regions damaged following generalized seizures, 24h after METH administration. The 5 mice without RESDs had a few acidophilic neurons in 4 of the 7 brain regions, but those with RESDs had significantly more in 6 of the 7 brain regions. Maximum rectal temperatures were comparable in mice with and without RESDs, so that cannot explain the difference between the two groups with respect to METH-induced neuronal death. Our data show that METH-induced neuronal death is morphologically necrotic, that EEGs must be recorded to detect electrographic seizure activity in rodents without behavioral evidence of seizures, and that RESDs may be responsible for METH-induced neuronal death.
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The pharmacokinetics of methamphetamine self-administration in male and female rats. Drug Alcohol Depend 2015; 150:164-9. [PMID: 25796510 PMCID: PMC4387073 DOI: 10.1016/j.drugalcdep.2015.02.032] [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] [Received: 12/12/2014] [Revised: 02/25/2015] [Accepted: 02/26/2015] [Indexed: 11/22/2022]
Abstract
BACKGROUND Because methamphetamine (METH) pharmacokinetics after single iv doses show significant differences between male and female rats, we hypothesized that pharmacokinetic differences in METH disposition could be a contributing factor to the patterns of METH self-administration behaviors in rats. METHODS For the studies, we used a passive (non-contingent) METH dosing schedule consisting of 27 METH iv bolus injections (0.048mg/kg) over 2h derived from a previous active (contingent) METH self-administration behavioral study in male rats. After METH dosing of male and female Sprague-Dawley rats (n=5/group), METH and amphetamine serum concentrations were determined by LC-MS/MS. Pharmacokinetic analysis, including predictive mathematical simulations of the data, was then conducted. RESULTS Male and female rats achieved relatively stable METH serum concentrations within 20min, which remained constant from 20 to 120min. While not statistically different, METH clearance and volume of distribution values for females were 25% and 33% lower (respectively) than males. Linear regression analysis of predicted METH concentrations from pharmacokinetic simulations versus observed concentrations showed a substantially better correlation with male data than female data (r(2)=0.71 vs. 0.56; slope=0.95 vs. 0.45, respectively). At 120min, the time of predicted peak METH serum concentrations, female values were 42% higher than expected, while male values were within 3%. CONCLUSIONS Unlike METH male pharmacokinetic data, the female data was less predictable during multiple METH administrations and produced overall higher than expected METH concentrations. These findings demonstrate that METH pharmacokinetics could contribute to differences in METH self-administration behaviors in rats.
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Courtney KE, Ray LA. Methamphetamine: an update on epidemiology, pharmacology, clinical phenomenology, and treatment literature. Drug Alcohol Depend 2014; 143:11-21. [PMID: 25176528 PMCID: PMC4164186 DOI: 10.1016/j.drugalcdep.2014.08.003] [Citation(s) in RCA: 278] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 08/02/2014] [Accepted: 08/03/2014] [Indexed: 01/02/2023]
Abstract
BACKGROUND Despite initial reports of a decline in use in the early 2000s, methamphetamine remains a significant public health concern with known neurotoxic and neurocognitive effects to the user. The goal of this review is to update the literature on methamphetamine use and addiction since its assent to peak popularity in 1990s. METHODS We first review recent epidemiological reports with a focus on methamphetamine accessibility, changes in use and disorder prevalence rates over time, and accurate estimates of the associated burden of care to the individual and society. Second, we review methamphetamine pharmacology literature with emphasis on the structural and functional neurotoxic effects associated with repeated use of the drug. Third, we briefly outline the findings on methamphetamine-related neurocognitive deficits as assessed via behavioral and neuroimaging paradigms. Lastly, we review the clinical presentation of methamphetamine addiction and the evidence supporting the available psychosocial and pharmacological treatments within the context of an addiction biology framework. CONCLUSION Taken together, this review provides a broad-based update of the available literature covering methamphetamine research over the past two decades and concludes with recommendations for future research.
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Affiliation(s)
| | - Lara A. Ray
- Department of Psychology, University of California, Los Angeles,Department of Psychiatry and Biobehavioral Sciences, University of
California, Los Angeles
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Jayanthi S, McCoy MT, Chen B, Britt JP, Kourrich S, Yau HJ, Ladenheim B, Krasnova IN, Bonci A, Cadet JL. Methamphetamine downregulates striatal glutamate receptors via diverse epigenetic mechanisms. Biol Psychiatry 2014; 76:47-56. [PMID: 24239129 PMCID: PMC3989474 DOI: 10.1016/j.biopsych.2013.09.034] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 09/27/2013] [Accepted: 09/30/2013] [Indexed: 11/16/2022]
Abstract
BACKGROUND Chronic methamphetamine (METH) exposure causes neuroadaptations at glutamatergic synapses. METHODS To identify the METH-induced epigenetic underpinnings of these neuroadaptations, we injected increasing METH doses to rats for 2 weeks and measured striatal glutamate receptor expression. We then quantified the effects of METH exposure on histone acetylation. We also measured METH-induced changes in DNA methylation and DNA hydroxymethylation. RESULTS Chronic METH decreased transcript and protein expression of GluA1 and GluA2 alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid receptor (AMPAR) and GluN1 N-methyl-D-aspartate receptor subunits. These changes were associated with altered electrophysiological glutamatergic responses in striatal neurons. Chromatin immunoprecipitation-polymerase chain reaction revealed that METH decreased enrichment of acetylated histone H4 on GluA1, GluA2, and GluN1 promoters. Methamphetamine exposure also increased repressor element-1 silencing transcription factor (REST) corepressor 1, methylated CpG binding protein 2, and histone deacetylase 2 enrichment, but not of sirtuin 1 or sirtuin 2, onto GluA1 and GluA2 gene sequences. Moreover, METH caused interactions of REST corepressor 1 and methylated CpG binding protein 2 with histone deacetylase 2 and of REST with histone deacetylase 1. Surprisingly, methylated DNA immunoprecipitation and hydroxymethylated DNA immunoprecipitation-polymerase chain reaction revealed METH-induced decreased enrichment of 5-methylcytosine and 5-hydroxymethylcytosine at GluA1 and GluA2 promoter sequences. Importantly, the histone deacetylase inhibitor, valproic acid, blocked METH-induced decreased expression of AMPAR and N-methyl-D-aspartate receptor subunits. Finally, valproic acid also attenuated METH-induced decrease H4K16Ac recruitment on AMPAR gene sequences. CONCLUSIONS These observations suggest that histone H4 hypoacetylation may be the main determinant of METH-induced decreased striatal glutamate receptor expression.
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Affiliation(s)
- Subramaniam Jayanthi
- Molecular Neuropsychiatry Research Branch, US Department of Health and Human Services/National Institutes of Health/National Institute on Drug Abuse/Intramural Research Program, Baltimore, MD
| | - Michael T McCoy
- Molecular Neuropsychiatry Research Branch, US Department of Health and Human Services/National Institutes of Health/National Institute on Drug Abuse/Intramural Research Program, Baltimore, MD
| | - Billy Chen
- Synaptic Plasticity Section, US Department of Health and Human Services/National Institutes of Health/National Institute on Drug Abuse/Intramural Research Program, Baltimore, MD
| | - Jonathan P Britt
- Synaptic Plasticity Section, US Department of Health and Human Services/National Institutes of Health/National Institute on Drug Abuse/Intramural Research Program, Baltimore, MD
| | - Saїd Kourrich
- Synaptic Plasticity Section, US Department of Health and Human Services/National Institutes of Health/National Institute on Drug Abuse/Intramural Research Program, Baltimore, MD
| | - Hau-Jie Yau
- Synaptic Plasticity Section, US Department of Health and Human Services/National Institutes of Health/National Institute on Drug Abuse/Intramural Research Program, Baltimore, MD
| | - Bruce Ladenheim
- Molecular Neuropsychiatry Research Branch, US Department of Health and Human Services/National Institutes of Health/National Institute on Drug Abuse/Intramural Research Program, Baltimore, MD
| | - Irina N Krasnova
- Molecular Neuropsychiatry Research Branch, US Department of Health and Human Services/National Institutes of Health/National Institute on Drug Abuse/Intramural Research Program, Baltimore, MD
| | - Antonello Bonci
- Synaptic Plasticity Section, US Department of Health and Human Services/National Institutes of Health/National Institute on Drug Abuse/Intramural Research Program, Baltimore, MD
| | - Jean Lud Cadet
- Molecular Neuropsychiatry Research Branch, US Department of Health and Human Services/National Institutes of Health/National Institute on Drug Abuse/Intramural Research Program, Baltimore, MD.
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Zheng T, Liu L, Shi J, Yu X, Xiao W, Sun R, Zhou Y, Aa J, Wang G. The metabolic impact of methamphetamine on the systemic metabolism of rats and potential markers of methamphetamine abuse. MOLECULAR BIOSYSTEMS 2014; 10:1968-77. [PMID: 24825823 DOI: 10.1039/c4mb00158c] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Although the stimulating and psychotropic effects of methamphetamine (METH) on the nervous system are well documented, the impact of METH abuse on biological metabolism and the turnover of peripheral transmitters are poorly understood. Metabolomics has the potential to reveal the effect of METH abuse on systemic metabolism and potential markers suggesting the underlying mechanism of toxicity. In this study, male Sprague Dawley rats were intraperitoneally injected with METH at escalating doses of mg kg(-1) for 5 consecutive days and then were withdrawn for 2 days. The metabolites in the serum and urine were profiled and the systemic effects of METH on metabolic pathways were evaluated. Multivariate statistical analysis showed that METH caused distinct deviations, whereas the withdrawal of METH restored the metabolic patterns towards baseline. METH administration elevated energy metabolism, which was manifested by the distinct depletion of branched-chain amino acids, accelerated tricarboxylic-acid cycle and lipid metabolism, reduced serum glycerol-3-phosphate, and elevated serum and urinary 3-hydroxybutyrate and urinary glycerol. In addition to the increased serum levels of the excitatory amino acids glutamate and aspartate (the inhibitory neurotransmitters in the brain), a marked decline in serum alanine and glycine after METH treatment suggested the activation and decreased inhibition of the nervous system and hence elevated nervous activity. Withdrawal of METH for 2 days efficiently restored all but a few metabolites to baseline, including serum creatinine, citrate, 2-ketoglutarate, and urinary lactate. Therefore, these metabolites are potential markers of METH use, and they may be used to facilitate the diagnosis of METH abuse.
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Affiliation(s)
- Tian Zheng
- Lab of Metabonomics, Key Laboratory of Drug Metabolism and Pharmacokinetics, Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, No. 24, Tongjia Road, Nanjing 210009, Jiangsu province, China.
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Ferrari A, Tiraferri I, Palazzoli F, Licata M. Tramadol abuse in a binge pattern in a young depressed woman. Eur Addict Res 2014; 20:82-6. [PMID: 24080865 DOI: 10.1159/000353971] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Accepted: 06/24/2013] [Indexed: 11/19/2022]
Abstract
BACKGROUND Tramadol is a central analgesic with a unique pharmacological profile in that it is an opioid agonist and an inhibitor of serotonin and norepinephrine reuptake. We describe a case of abuse of tramadol in a binge pattern in a young woman who had initially received the prescription of tramadol as an analgesic as needed. CASE DESCRIPTION The patient had no history of drug or alcohol abuse, but suffered from depression. Over time, she had increased the doses up to 30 ml of tramadol 100 mg/ml oral solution a week. She took the drug in consecutive 'pinches', from afternoon to evening. Tramadol improved her mood, gave her euphoria, but also caused constipation and urinary retention. Detoxification was carried out by partial replacement with tramadol 100 mg extended release and gradual reduction of the number of pinches. The patient found it hard to follow the program because of withdrawal symptoms of an opioid type and especially because of the worsening of depression. CONCLUSION The action of tramadol on the monoaminergic system is believed to be a factor that limits abuse liability and gives advantageous antidepressant-like properties, but it also involves the risk of inducing abuse of the analgesic to improve mood as if it were a stimulant.
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Affiliation(s)
- Anna Ferrari
- Division of Toxicology and Clinical Pharmacology, University of Modena and Reggio Emilia, Modena, Italy
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Krasnova IN, Chiflikyan M, Justinova Z, McCoy MT, Ladenheim B, Jayanthi S, Quintero C, Brannock C, Barnes C, Adair JE, Lehrmann E, Kobeissy FH, Gold MS, Becker KG, Goldberg SR, Cadet JL. CREB phosphorylation regulates striatal transcriptional responses in the self-administration model of methamphetamine addiction in the rat. Neurobiol Dis 2013; 58:132-43. [PMID: 23726845 DOI: 10.1016/j.nbd.2013.05.009] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Revised: 05/08/2013] [Accepted: 05/20/2013] [Indexed: 10/26/2022] Open
Abstract
Neuroplastic changes in the dorsal striatum participate in the transition from casual to habitual drug use and might play a critical role in the development of methamphetamine (METH) addiction. We examined the influence of METH self-administration on gene and protein expression that may form substrates for METH-induced neuronal plasticity in the dorsal striatum. Male Sprague-Dawley rats self-administered METH (0.1mg/kg/injection, i.v.) or received yoked saline infusions during eight 15-h sessions and were euthanized 2h, 24h, or 1month after cessation of METH exposure. Changes in gene and protein expression were assessed using microarray analysis, RT-PCR and Western blots. Chromatin immunoprecipitation (ChIP) followed by PCR was used to examine epigenetic regulation of METH-induced transcription. METH self-administration caused increases in mRNA expression of the transcription factors, c-fos and fosb, the neurotrophic factor, Bdnf, and the synaptic protein, synaptophysin (Syp) in the dorsal striatum. METH also caused changes in ΔFosB, BDNF and TrkB protein levels, with increases after 2 and 24h, but decreases after 1month of drug abstinence. Importantly, ChIP-PCR showed that METH self-administration caused enrichment of phosphorylated CREB (pCREB), but not of histone H3 trimethylated at lysine 4 (H3K4me3), on promoters of c-fos, fosb, Bdnf and Syp at 2h after cessation of drug intake. These findings show that METH-induced changes in gene expression are mediated, in part, by pCREB-dependent epigenetic phenomena. Thus, METH self-administration might trigger epigenetic changes that mediate alterations in expression of genes and proteins serving as substrates for addiction-related synaptic plasticity.
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Affiliation(s)
- Irina N Krasnova
- Intramural Research Program, National Institute on Drug Abuse, NIH, DHHS, Baltimore, MD, USA
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Saint-Preux F, Bores LR, Tulloch I, Ladenheim B, Kim R, Thanos PK, Volkow ND, Cadet JL. Chronic co-administration of nicotine and methamphetamine causes differential expression of immediate early genes in the dorsal striatum and nucleus accumbens of rats. Neuroscience 2013; 243:89-96. [PMID: 23562942 DOI: 10.1016/j.neuroscience.2013.03.052] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 02/28/2013] [Accepted: 03/26/2013] [Indexed: 11/25/2022]
Abstract
Nicotine and methamphetamine (METH) cause addiction by triggering neuroplastic changes in brain reward pathways though they each engage distinct molecular targets (nicotine receptors and dopamine transporters respectively). Addiction to both drugs is very prevalent, with the vast majority of METH users also being smokers of cigarettes. This co-morbid occurrence thus raised questions about potential synergistic rewarding effects of the drugs. However, few studies have investigated the chronic neurobiological changes associated with co-morbid nicotine and METH addiction. Here we investigated the effects of these two drugs alone and in combination on the expression of several immediate early genes (IEGs) that are sensitive to drug exposures. Chronic exposure to either nicotine or METH caused significant decreases in the expression of fosb, fra1, and fra2 in the nucleus accumbens (NAc) but not in the dorsal striatum whereas the drug combination increased fra2 expression in both structures. Except for junB mRNA levels that were decreased by the three drug treatments in the NAc, there were no significant changes in the Jun family members. Of the Egr family members, NAc egr2 expression was decreased after nicotine and the drug combination whereas NAc egr3 was decreased after METH and the drug combination. The drug combination also increased striatal egr3 expression. The Nr4a family member, nr4a2/nurr1, showed increased striatal expression after all three drug treatments, while striatal nr4a3/nor-1 expression was increased by the drug combination whereas NAc nr4a1/nurr77 was decreased by nicotine and the drug combination. These observations suggest that, when given in combination, the two drugs exert distinct effects on the expression of IEGs in dopaminergic projection areas from those elicited by each drug alone. The significance of these changes in IEG expression and in other molecular markers in fostering co-morbid METH and nicotine abuse needs to be further evaluated.
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Affiliation(s)
- F Saint-Preux
- Molecular Neuropsychiatry Research Branch, NIDA IRP, Baltimore, MD 21224, USA
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Abstract
AIM To review the main psychological and mental conditions that are manifested dentally in the form of tooth wear. These conditions include depression, eating disorders, and alcohol and drug use disorders. The paper will also review the comorbidity of these conditions and the relevance of other medical conditions and lifestyle factors, such as gastroesophageal reflux disorder, smoking and diet, in the expression of tooth wear. CONCLUSION A holistic, multidisciplinary, healthcare approach is required in management of tooth wear patients with underlying mental health disorders. Dentists and Dental Care Professionals can have an important role in identifying these mental disorders through the observed tooth wear. They can also play a key role in monitoring patients' response and compliance to medical treatment through the monitoring of tooth wear progression and expression.
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Affiliation(s)
- Khaled E Ahmed
- Clinical Academic Fellow, Restorative Dentistry Group, University of Glasgow Dental School, Glasgow, UK.
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