201
|
McInnis P, Lee A. Methamphetamine use in an early psychosis service: a cross-sectional retrospective cohort study. Australas Psychiatry 2019; 27:383-387. [PMID: 31264898 DOI: 10.1177/1039856219859811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Methamphetamine-associated psychotic symptoms are common among regular users, and can overlap with the emergence of a primary psychotic disorder. In contrast to previous research, this retrospective observational study aims to describe the characteristics of young people experiencing early psychosis who use methamphetamine regularly. We also aimed to investigate associations between regular methamphetamine use and markers of psychosocial functioning, psychosis outcomes and substance use. METHOD This study involved 116 young people (19 using methamphetamine regularly) referred to the Camperdown Early Intervention in Psychosis Service from January 2015 to January 2016. Variables including demographic information, psychosocial functioning and psychosis outcomes were collected on referral to the service, updated throughout treatment and at discharge. RESULTS There were significant associations found between regular methamphetamine use and a criminal history (p<0.001), regular cannabis use (p=0.002) and regular nicotine use (p<0.001). CONCLUSION This study suggests that in early psychosis, regular methamphetamine use could signify a subgroup of young people who use multiple substances and may engage in criminal activity. Addressing substance use in early psychosis may be an important treatment target for this vulnerable group of young people.
Collapse
Affiliation(s)
- Peter McInnis
- Rivendell Child Adolescent and Family Mental Health Service, Sydney Local Health District, Concord West, NSW, Australia
| | - Anna Lee
- Early Intervention in Psychosis Service, Sydney Local Health District, Camperdown, NSW, Australia
| |
Collapse
|
202
|
Knych HK, Arthur RM, Kanarr KL, McKemie DS, Kass PH. Detection, pharmacokinetics, and selected pharmacodynamic effects of methamphetamine following a single transmucosal and intravenous administration to exercised Thoroughbred horses. Drug Test Anal 2019; 11:1431-1443. [PMID: 31218824 DOI: 10.1002/dta.2661] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 05/27/2019] [Accepted: 06/07/2019] [Indexed: 11/05/2022]
Abstract
Methamphetamine is a central and peripheral nervous system stimulant. There is only a single study that describes exposure to and disposition of this compound in horses. The potential for abuse and inadvertent exposure in equine athletes along with the limited data available necessitates further study. The objectives of the current study were to describe drug and metabolite concentrations, develop an analytical method that could be used to regulate its use, and describe selected pharmacodynamic effects. In phase 1, six horses were randomized into three transmucosal dose groups (n = 2/group; 0.5, 1.0 or 10 mg). In phase 2, horses received a single 10 mg intravenous dose. In phase 3, the effects of urinary pH on elimination were studied. Blood and urine samples were collected for up to 72 hours post drug administration. Concentrations of methamphetamine were measured using liquid chromatography-tandem mass spectrometry. Methamphetamine was below the limit of detection (LOD) in blood by 2, 4, and 18 hours following transmucosal administration of 0.5, 1, and 10 mg, respectively. Following intravenous administration, methamphetamine fell below the LOD between 12 and 18 hours. Following urinary acidification, methamphetamine fell below the limit of quantitation (LOQ) by 12 hours. In urine, methamphetamine was no longer detected at 48, 48, and 72 hours in the 0.5, 1, and 10 mg transmucosal groups and 18 hours in the intravenous group. Increased urinary pH resulted in urinary concentrations of methamphetamine falling below detectable levels by 48 hours post transmucosal administration. While the number of animals was small, behavioral, stimulatory, and cardiac effects were minimal.
Collapse
Affiliation(s)
- Heather K Knych
- K.L. Maddy Equine Analytical Chemistry Laboratory, School of Veterinary Medicine, University of California, Davis, California, USA.,Department of Veterinary Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, California, USA
| | - Rick M Arthur
- School of Veterinary Medicine, University of California, Davis, California, USA
| | - Kirsten L Kanarr
- K.L. Maddy Equine Analytical Chemistry Laboratory, School of Veterinary Medicine, University of California, Davis, California, USA
| | - Dan S McKemie
- K.L. Maddy Equine Analytical Chemistry Laboratory, School of Veterinary Medicine, University of California, Davis, California, USA
| | - Philip H Kass
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, California, USA
| |
Collapse
|
203
|
Stafford AM, Reed C, Baba H, Walter NAR, Mootz JRK, Williams RW, Neve KA, Fedorov LM, Janowsky AJ, Phillips TJ. Taar1 gene variants have a causal role in methamphetamine intake and response and interact with Oprm1. eLife 2019; 8:e46472. [PMID: 31274109 PMCID: PMC6682400 DOI: 10.7554/elife.46472] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 07/04/2019] [Indexed: 12/17/2022] Open
Abstract
We identified a locus on mouse chromosome 10 that accounts for 60% of the genetic variance in methamphetamine intake in mice selectively bred for high versus low methamphetamine consumption. We nominated the trace amine-associated receptor 1 gene, Taar1, as the strongest candidate and identified regulation of the mu-opioid receptor 1 gene, Oprm1, as another contributor. This study exploited CRISPR-Cas9 to test the causal role of Taar1 in methamphetamine intake and a genetically-associated thermal response to methamphetamine. The methamphetamine-related traits were rescued, converting them to levels found in methamphetamine-avoiding animals. We used a family of recombinant inbred mouse strains for interval mapping and to examine independent and epistatic effects of Taar1 and Oprm1. Both methamphetamine intake and the thermal response mapped to Taar1 and the independent effect of Taar1 was dependent on genotype at Oprm1. Our findings encourage investigation of the contribution of Taar1 and Oprm1 variants to human methamphetamine addiction.
Collapse
Affiliation(s)
- Alexandra M Stafford
- Department of Behavioral Neuroscience and Methamphetamine Abuse Research CenterOregon Health & Science UniversityPortlandUnited States
| | - Cheryl Reed
- Department of Behavioral Neuroscience and Methamphetamine Abuse Research CenterOregon Health & Science UniversityPortlandUnited States
| | - Harue Baba
- Department of Behavioral Neuroscience and Methamphetamine Abuse Research CenterOregon Health & Science UniversityPortlandUnited States
| | - Nicole AR Walter
- Division of NeuroscienceOregon National Primate Research CenterPortlandUnited States
| | - John RK Mootz
- Department of Behavioral Neuroscience and Methamphetamine Abuse Research CenterOregon Health & Science UniversityPortlandUnited States
| | - Robert W Williams
- Department of Genetics, Genomics and InformaticsUniversity of Tennessee Health Sciences CenterMemphisUnited States
| | - Kim A Neve
- Department of Behavioral Neuroscience and Methamphetamine Abuse Research CenterOregon Health & Science UniversityPortlandUnited States
- Veterans Affairs Portland Health Care SystemPortlandUnited States
| | - Lev M Fedorov
- Transgenic Mouse Models Shared Resource, Knight Cancer InstituteOregon Health & Science UniversityPortlandUnited States
| | - Aaron J Janowsky
- Department of Behavioral Neuroscience and Methamphetamine Abuse Research CenterOregon Health & Science UniversityPortlandUnited States
- Veterans Affairs Portland Health Care SystemPortlandUnited States
- Department of PsychiatryOregon Health & Science UniversityPortlandUnited States
| | - Tamara J Phillips
- Department of Behavioral Neuroscience and Methamphetamine Abuse Research CenterOregon Health & Science UniversityPortlandUnited States
- Veterans Affairs Portland Health Care SystemPortlandUnited States
| |
Collapse
|
204
|
Sibanda NC, Kornhaber R, Hunt GE, Morley K, Cleary M. Prevalence and Risk Factors of Emergency Department Presentations with Methamphetamine Intoxication or Dependence: A Systematic Review and Meta-analysis. Issues Ment Health Nurs 2019; 40:567-578. [PMID: 31025889 DOI: 10.1080/01612840.2018.1553003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Background: Methamphetamine intoxication presentations to emergency departments (EDs) including trauma centres, general EDs and psychiatric emergency services have risen world-wide. Objectives: A review of the clinical characteristics of patients presenting to a trauma centre or ED with methamphetamine intoxication or dependence to aid development of health service policy and training for health personnel. Methods: PubMed, PsycINFO, CINAHL and Scopus (1990-2017) were searched. A systematic review of all clinical characteristics was conducted, and a meta-analysis undertaken for variables with standard measures (prevalence, age, gender); 23 studies met the inclusion criteria of which 17 could be used in the meta-analysis. Results: Methamphetamine-related presentations were characterised by cardiac complications, psychiatric symptoms and aggression with safety risk to health personnel. The pooled prevalence of methamphetamine positive cases in emergency settings was higher in studies using toxicology analysis to determine methamphetamine use (8 studies, 22.8% 95% CI 15.4-32.5) compared to self-reporting (9 studies 5.7%, 95% CI 2.8-11.2, Q = 12.42, p < 0.001). Pooled variance of methamphetamine positive cases was 57.1% in men and 42.9% in women. The mean age of those who were methamphetamine positive was 28.4 years and for those methamphetamine negative cases it was 38.4 years. Conclusions: In this review, we found a higher prevalence of methamphetamine use amongst males and in the younger demographic. Targeted training programmes for frontline staff and management approaches for prompt multi-disciplinary service engagement are recommended as well as appropriate resourcing, such as mental health staff in EDs or mental health beds to accommodate this subgroup of the patient cohort.
Collapse
Affiliation(s)
- Njabulo Churchill Sibanda
- a School of Health Sciences, College of Health and Medicine , University of Tasmania , Sydney , New South Wales , Australia
| | - Rachel Kornhaber
- a School of Health Sciences, College of Health and Medicine , University of Tasmania , Sydney , New South Wales , Australia
| | - Glenn E Hunt
- b Discipline of Psychiatry , University of Sydney , Sydney , New South Wales , Australia
| | - Kirsten Morley
- c Discipline of Addiction Medicine, Central Clinical School, Faculty of Medicine and Health , University of Sydney , Sydney , New South Wales , Australia
| | - Michelle Cleary
- a School of Health Sciences, College of Health and Medicine , University of Tasmania , Sydney , New South Wales , Australia
| |
Collapse
|
205
|
Friedland S, Kahlon S, Carlson GA, Greenhill LL. Stimulant-Induced Punding and Stimulant Discontinuation-Induced Manic-Like Symptoms in a Preadolescent Male. J Child Adolesc Psychopharmacol 2019; 29:318-320. [PMID: 31075054 DOI: 10.1089/cap.2019.29166.gac] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Susan Friedland
- 1 Hassenfeld Children's Hospital at NYU, Langone Department of Child and Adolescent Psychiatry Child Study Center, New York, New York
| | - Sidra Kahlon
- 2 Department of Psychiatry, Renaissance School of Medicine at Stony Brook University Putnam Hall-South Campus, Stony Brook, New York
| | - Gabrielle A Carlson
- 2 Department of Psychiatry, Renaissance School of Medicine at Stony Brook University Putnam Hall-South Campus, Stony Brook, New York
| | - Laurence L Greenhill
- 3 Department of Psychiatry, University of California, San Francisco (UCFS), San Francisco, California
| |
Collapse
|
206
|
Moreira da Silva Santos A, Kelly JP, Dockery P, Doyle KM. Effect of a binge-like dosing regimen of methamphetamine on dopamine levels and tyrosine hydroxylase expressing neurons in the rat brain. Prog Neuropsychopharmacol Biol Psychiatry 2019; 89:303-309. [PMID: 30296469 DOI: 10.1016/j.pnpbp.2018.10.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 08/24/2018] [Accepted: 10/04/2018] [Indexed: 11/19/2022]
Abstract
Methamphetamine, an amphetamine derivative, is a powerful psychomotor stimulant and commonly used drug of abuse. This study examined the effect of binge-like methamphetamine (MA) dosing (4 × 4 mg/kg, s.c., 2 h apart) on regional dopamine and dopaminergic metabolite levels in rat brain at a range of early time points after final dose (2-48 h). Body temperature was elevated when measured 2 h after the last dose. MA increased dopamine levels in the frontal cortex 2 and 24 h after the last dose. The dopamine level was also increased in the amygdala at 24 h. No change was observed in the striatum at any time point, but levels of the dopamine metabolite DOPAC were markedly reduced at 24 and 48 h. Tyrosine hydroxylase expression is induced downstream of dopamine activity, and it is the rate limiting enzyme in dopamine synthesis. The effect of MA binge-like dosing on the volume of tyrosine hydroxylase containing cell bodies and the area fraction of tyrosine hydroxylase containing fibres was also assessed. MA increased the area fraction of tyrosine hydroxylase fibres in the frontal cortex and reduced the volume of tyrosine hydroxylase containing cell bodies 2 h after last dose in the ventral tegmental area and the substantia nigra. An increase in cell body volume in the substantia nigra was observed 48 h after treatment. These findings collectively highlight the importance of the dopaminergic system in methamphetamine induced effects, identify the frontal cortex, amygdala and striatum as key regions that undergo early changes in response to binge-like methamphetamine dosing and provide evidence of time-dependent effects on the cell bodies and fibres of tyrosine hydroxylase expressing neurons.
Collapse
Affiliation(s)
- Andreia Moreira da Silva Santos
- School of Medicine and Galway Neuroscience Centre, National University of Ireland, Galway, Ireland; Centro Universitário Unievangélica, Anápolis - GO CEP, 75083-515, Brazil
| | - John P Kelly
- School of Medicine and Galway Neuroscience Centre, National University of Ireland, Galway, Ireland
| | - Peter Dockery
- School of Medicine and Galway Neuroscience Centre, National University of Ireland, Galway, Ireland
| | - Karen M Doyle
- School of Medicine and Galway Neuroscience Centre, National University of Ireland, Galway, Ireland.
| |
Collapse
|
207
|
García-Cabrerizo R, García-Fuster MJ. Methamphetamine binge administration dose-dependently enhanced negative affect and voluntary drug consumption in rats following prolonged withdrawal: role of hippocampal FADD. Addict Biol 2019; 24:239-250. [PMID: 29282816 DOI: 10.1111/adb.12593] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 10/24/2017] [Accepted: 11/28/2017] [Indexed: 12/21/2022]
Abstract
While prior studies have established various interacting mechanisms and neural consequences (i.e. monoaminergic nerve terminal damage) that might contribute to the adverse effects caused by methamphetamine administration, the precise mechanisms that mediate relapse during withdrawal remain unknown. This study evaluated the long-term consequences of binge methamphetamine administration (three pulses/day, every 3 hours, 4 days, i.p.; dose-response: 2.5, 5 and 7.5 mg/kg) in adult Sprague-Dawley rats at two behavioral levels following 25 days of withdrawal: (1) negative affect (behavioral despair-forced-swim test, and anhedonia-1% sucrose consumption, two-bottle choice test) and (2) voluntary methamphetamine consumption (20 mg/l, two-bottle choice test). Striatal and hippocampal brain samples were dissected to quantify monoamines content by high-performance liquid chromatography and to evaluate neurotoxicity (dopaminergic and serotonergic markers) and neuroplasticity markers [i.e. cell fate regulator (Fas-associated protein with death domain) FADD] by Western blot. The results showed that methamphetamine administration induced dose-dependent negative effects during prolonged withdrawal in adult rats. In particular, rats treated repeatedly with methamphetamine (7.5 mg/kg) showed (1) enhanced negative affect-increased anhedonia associated with behavioral despair, (2) increased voluntary methamphetamine consumption, (3) enhanced neurotoxicity-decreased dopamine and metabolites in striatum and decreased serotonin in hippocampus, (4) altered neuroplasticity markers-decreased FADD protein and increased p-FADD/FADD balance selectively in hippocampus and (5) higher consumption rates of methamphetamine that were associated with lower FADD content in hippocampus. These results confirm that methamphetamine withdrawal dose-dependently induced negative affect and decreased monoamines content, while also increased voluntary methamphetamine consumption and suggested a role for hippocampal FADD neuroplasticity in these drug-withdrawal adaptations.
Collapse
Affiliation(s)
- Rubén García-Cabrerizo
- IUNICS; University of the Balearic Islands; Palma Spain
- Balearic Islands Health Research Institute (IdISBa); Palma Spain
| | - M. Julia García-Fuster
- IUNICS; University of the Balearic Islands; Palma Spain
- Balearic Islands Health Research Institute (IdISBa); Palma Spain
| |
Collapse
|
208
|
Smid MC, Metz TD, Gordon AJ. Stimulant Use in Pregnancy: An Under-recognized Epidemic Among Pregnant Women. Clin Obstet Gynecol 2019; 62:168-184. [PMID: 30601144 PMCID: PMC6438363 DOI: 10.1097/grf.0000000000000418] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Stimulant use, including cocaine, methamphetamines, ecstasy, and prescription stimulants, in pregnancy is increasingly common. In the United States, stimulants are the second most widely used and abused substances during pregnancy and pregnant women using stimulants in pregnancy are at increased risk of adverse perinatal, neonatal, and childhood outcomes. In this review, we describe the pharmacology, pathophysiology, and epidemiology of stimulants, summarize the maternal and neonatal effects of perinatal stimulant use, and outline treatment options for stimulant use disorders among pregnant women. Development of effective treatment strategies for stimulant use disorders identified among pregnant women are urgently needed.
Collapse
Affiliation(s)
- Marcela C Smid
- Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine
- Program for Addiction Research, Clinical Care, Knowledge and Advocacy (PARCKA), Department of Internal Medicine, Division of Epidemiology, University of Utah School of Medicine
- Informatics, Decision-Enhancement, and Analytic Sciences Center (IDEAS), Salt Lake City VA Health Care System, Salt Lake City, Utah
| | - Torri D Metz
- Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine
| | - Adam J Gordon
- Program for Addiction Research, Clinical Care, Knowledge and Advocacy (PARCKA), Department of Internal Medicine, Division of Epidemiology, University of Utah School of Medicine
- Informatics, Decision-Enhancement, and Analytic Sciences Center (IDEAS), Salt Lake City VA Health Care System, Salt Lake City, Utah
| |
Collapse
|
209
|
Development of a high throughput methodology to screen cathinones' toxicological impact. Forensic Sci Int 2019; 298:1-9. [PMID: 30870699 DOI: 10.1016/j.forsciint.2019.02.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 01/31/2019] [Accepted: 02/11/2019] [Indexed: 11/23/2022]
Abstract
Current trend of novel psychoactive substances (NPS) among teenagers is posing new clinical, scientific and forensic societal questions. Synthetic cathinones are among the most consumed groups of NPS appearing on the street market and internet on a regular basis. The properties of these substances change regularly, due to structural modification to circumvent legislation. This practice makes almost impossible to characterize its toxicological profiles on an acceptable time scale, mostly due to the time-consuming experiments that must be held in animal models or human cells by standard methods. Such an issue demands the development of a rapid and inexpensive methodology to be used as a high-throughput screening of cathinones' toxicity. The yeast Saccharomyces cerevisiae shares highly conserved molecular and cellular mechanisms with human cells and has been used before for pharmacological drugs. In the present work it is proposed to use S. cerevisiae growth curves as a high throughput screening method to profile synthetic cathinones toxicity in a short time scale. The results obtained by S. cerevisiae growth curves analysis were compared to differentiated SH-SY5Y human neuronal cells and similar responses were found. The screening tool methodology has shown able to prioritize the most toxics NPS and can be useful for early warning programs on NPS.
Collapse
|
210
|
Abstract
This study evaluated the effects of a health-related fotonovela about crystal meth (S-methamphetamine hydrochloride) among "Colored" people (an ethnic label for people of mixed race) in the Western Cape province of South Africa. Crystal meth use is most common among Colored people in this province and it is considered a major social problem. The fotonovela was compared to a no-message control group and a traditional brochure in a randomized controlled trial (N = 303). The fotonovela outperformed the control condition for knowledge level and it outperformed the traditional brochure on intention toward starting conversations about crystal meth. Especially readers with relatively low levels of education clearly preferred the fotonovela over the traditional brochure.
Collapse
Affiliation(s)
- Burt Davis
- Africa Centre for HIV/AIDS Management, Stellenbosch University, Stellenbosch, South Africa
| | - Carel Jansen
- University of Groningen, Faculty of Arts, Communication and Information Studies, Groningen, the Netherlands.,Language Centre, Stellenbosch University, Stellenbosch, South Africa
| |
Collapse
|
211
|
Methamphetamine regulates βAPP processing in human neuroblastoma cells. Neurosci Lett 2019; 701:20-25. [PMID: 30771376 DOI: 10.1016/j.neulet.2019.02.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 02/05/2019] [Accepted: 02/12/2019] [Indexed: 12/20/2022]
Abstract
Methamphetamine is a potent and highly addictive psychostimulant whose abuse has turned out to be a global health hazard. The multitudinous effects it exerts at the cellular level induces neurotoxic responses in the human brain, ultimately leading to neurocognitive disorders. Strikingly, brain changes, tissue damage and neuropsychological symptoms due to Meth exposure compels and necessitates to link the probability of risk of developing premature Alzheimer's disease, a progressive neurodegenerative disorder characterized by amyloid plaques composed of amyloid-β peptides and clinical dementia. These peptides are derived from sequential cleavages of the β-amyloid precursor protein by β- and γ-secretases. Previous studies reveals evidence for both positive and negative effects of Meth pertaining to cognitive functioning based on the dosage paradigm and duration of exposure revealing a beneficial psychotropic profile under some conditions and deleterious cognitive deficits under some others. In this context, we proposed to examine the effect of Meth on βAPP metabolism and βAPP-cleaving secretases in the human neuroblastoma SH-SY5Y cell line. Our results showed that Meth dose-dependently increases BACE1 expression and catalytic activity, while its effect on the α-cleavage of βAPP and on the expression and catalytic activity of the main α-secretase ADAM10 display a bell-curve shape. To our knowledge, the present study is the first to demonstrate that Meth can control βAPP-cleaving secretases. Moreover, we propose from these findings that the deleterious effect of Meth on cognitive decline might be an outcome of high dosage paradigm whereas acute and short-term drug use which stimulated sAPPα might produce improvements in cognition in disorders such as AD.
Collapse
|
212
|
Wang Z, Xu Z, Li X. Impacts of methamphetamine and ketamine on C.elegans's physiological functions at environmentally relevant concentrations and eco-risk assessment in surface waters. JOURNAL OF HAZARDOUS MATERIALS 2019; 363:268-276. [PMID: 30312923 DOI: 10.1016/j.jhazmat.2018.09.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 09/05/2018] [Accepted: 09/06/2018] [Indexed: 06/08/2023]
Abstract
In this work, C. elegans as a model organism was treated with methamphetamine (METH) and ketamine (KET) to assess its eco-toxicity at a range (0.05-250 μg L-1) that covers environmentally relevant concentrations (0.05-0.5 μg L-1). METH (≥0.05 μg L-1) and KET (≥0.5 μg L-1) significantly affected the feeding rate, locomotion, gustation and olfaction (P < 0.05), which may result in pronounced disturbance to aquatic ecology. Alterations in the contents of neurotransmitters (i.e., octopamine (OA), dopamine (DA), and serotonin (5-HT)) correlated with the physiology change. The metabolic activities and the antioxidase activity (i.e., superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT)) of METH and KET in C. elegans were different, which could partly explain the difference of the physiological changes induced by the two substances. Moreover, these two drugs could induce vulva deformity, and the 50% effect concentrations were 620.34 μg L-1 for METH and 54.39 μg L-1 for KET, respectively. The risk quotients (RQ) in two Chinese rivers, the Shenzhen and Liangshui River, were calculated to assess eco-risks of METH and KET. RQs of KET in the Shenzhen River were over 0.1 at the medium risk level, indicating that eco-risks of illicit drugs to aquatic organism cannot be overlooked.
Collapse
Affiliation(s)
- Zhenglu Wang
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Zeqiong Xu
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Xiqing Li
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China.
| |
Collapse
|
213
|
Shin EJ, Dang DK, Hwang YG, Tran HQ, Sharma N, Jeong JH, Jang CG, Nah SY, Nabeshima T, Yoneda Y, Cadet JL, Kim HC. Significance of protein kinase C in the neuropsychotoxicity induced by methamphetamine-like psychostimulants. Neurochem Int 2019; 124:162-170. [PMID: 30654115 DOI: 10.1016/j.neuint.2019.01.014] [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] [Received: 10/11/2018] [Revised: 12/27/2018] [Accepted: 01/14/2019] [Indexed: 02/06/2023]
Abstract
The abuse of methamphetamine (MA), an amphetamine (AMPH)-type stimulant, has been demonstrated to be associated with various neuropsychotoxicity, including memory impairment, psychiatric morbidity, and dopaminergic toxicity. Compelling evidence from preclinical studies has indicated that protein kinase C (PKC), a large family of serine/threonine protein kinases, plays an important role in MA-induced neuropsychotoxicity. PKC-mediated N-terminal phosphorylation of dopamine transporter has been identified as one of the prerequisites for MA-induced synaptic dopamine release. Consistently, it has been shown that PKC is involved in MA (or AMPH)-induced memory impairment and mania-like behaviors as well as MA drug dependence. Direct or indirect regulation of factors related to neuronal plasticity seemed to be critical for these actions of PKC. In addition, PKC-mediated mitochondrial dysfunction, oxidative stress or impaired antioxidant defense system has been suggested to play a role in psychiatric and cognitive disturbance induced by MA (or AMPH). In MA-induced dopaminergic toxicity, particularly PKCδ has been shown to trigger oxidative stress, mitochondrial dysfunction, pro-apoptotic changes, and neuroinflammation. Importantly, PKCδ may be a key mediator in the positive feedback loop composed of these detrimental events to potentiate MA-induced dopaminergic toxicity. This review outlines the role of PKC and its individual isozymes in MA-induced neuropsychotoxicity. Better understanding on the molecular mechanism of PKCs might provide a great insight for the development of potential therapeutic or preventive candidates for MA (or AMPH)-associated neuropsychotoxicity.
Collapse
Affiliation(s)
- Eun-Joo Shin
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chunchon 24341, Republic of Korea
| | - Duy-Khanh Dang
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chunchon 24341, Republic of Korea
| | - Young Gwang Hwang
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chunchon 24341, Republic of Korea
| | - Hai-Quyen Tran
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chunchon 24341, Republic of Korea
| | - Naveen Sharma
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chunchon 24341, Republic of Korea
| | - Ji Hoon Jeong
- Department of Pharmacology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Choon-Gon Jang
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Seung-Yeol Nah
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Toshitaka Nabeshima
- Advanced Diagnostic System Research Laboratory, Fujita Health University Graduate School of Health Science, Toyoake 470-1192, Japan
| | - Yukio Yoneda
- Section of Prophylactic Pharmacology, Kanazawa University Venture Business Laboratory, Kanazawa, Ishikawa 920-1192, Japan
| | - Jean Lud Cadet
- NIDA Intramural Program, Molecular Neuropsychiatry Research Branch, 251 Bayview Boulevard, Baltimore, MD 21224, USA
| | - Hyoung-Chun Kim
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chunchon 24341, Republic of Korea.
| |
Collapse
|
214
|
Stock AK, Rädle M, Beste C. Methamphetamine-associated difficulties in cognitive control allocation may normalize after prolonged abstinence. Prog Neuropsychopharmacol Biol Psychiatry 2019; 88:41-52. [PMID: 29953935 DOI: 10.1016/j.pnpbp.2018.06.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 06/21/2018] [Accepted: 06/23/2018] [Indexed: 12/24/2022]
Abstract
Chronic heavy methamphetamine use likely causes dopaminergic neurotoxicity, which is commonly thought to result in cognitive control deficits. Both of these alterations may persist even after the use is discontinued, but tend to (partly) improve with increasing duration of abstinence. While several studies have demonstrated that the reinstatement of comparatively normal dopaminergic signaling may take months, if not years, the amelioration of cognitive deficits has predominantly been investigated in much shorter intervals of several weeks to less than half a year. Against this background, we set out to investigate the effects on prolonged abstinence in n = 27 abstinent former methamphetamine users in a cross-sectional design using behavioral and neurophysiological measures of cognitive control. Our behavioral results suggest that former users struggled to identify and adapt to different degrees of cognitive control requirements, which made their behavioral performance less expedient than that of healthy controls. On the neurophysiological level, this was reflected by reduced modulations of the N2-N450 amplitude in response to high vs. low cognitive control requirements. Yet, those effects could only be observed in methamphetamine users who had been abstinent for a relatively short time (mean 9.9; max. 18 months), but not in former users who had been abstinent two years or longer. While this finding alone does not allow for causal inferences, it suggests that the amelioration of control deficits may take longer than what is commonly investigated (1-6 months). Hence, some of the statements about permanent/irreversible dopamine-dependent executive dysfunctions in former methamphetamine users should be interpreted with caution.
Collapse
Affiliation(s)
- Ann-Kathrin Stock
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine of the TU Dresden, Germany.
| | - Marion Rädle
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine of the TU Dresden, Germany
| | - Christian Beste
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine of the TU Dresden, Germany
| |
Collapse
|
215
|
Hoffmann L, Buchenauer L, Schumann N, Schröder SL, Martin O, Richter M. Improving Rehabilitative Care of Methamphetamine Users in Germany: The Expert's Perspective. QUALITATIVE HEALTH RESEARCH 2019; 29:248-259. [PMID: 30129874 DOI: 10.1177/1049732318792504] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Methamphetamine is one of the most frequently used drugs worldwide. In Germany, methamphetamine use has greatly increased in recent years, presenting the rehabilitative treatment system with new challenges. In this study, we identified deficits and possibilities for optimization in the field of medical rehabilitation. A total of 39 interviews and two focus groups with experts along the treatment course of methamphetamine users were conducted. Our analyses indicate that methamphetamine users are more difficult to treat compared with patients who consume other drugs. They are more likely to be associated with problematic characteristics and behaviors than other rehabilitants. Several health care deficits were revealed: too short rehabilitation treatment, no specific or differentiated therapy concepts, lack of capacity for education and vocational training, lack of outpatient options, and insufficient facilities for parents and children. Findings indicate that inadequate rehabilitation is being provided for methamphetamine users in Germany, indicating a need to adapt treatment for this group.
Collapse
Affiliation(s)
- Laura Hoffmann
- 1 Martin Luther University of Halle-Wittenberg, Halle (Saale), Germany
| | - Lisa Buchenauer
- 1 Martin Luther University of Halle-Wittenberg, Halle (Saale), Germany
| | - Nadine Schumann
- 1 Martin Luther University of Halle-Wittenberg, Halle (Saale), Germany
| | | | - Olaf Martin
- 1 Martin Luther University of Halle-Wittenberg, Halle (Saale), Germany
| | - Matthias Richter
- 1 Martin Luther University of Halle-Wittenberg, Halle (Saale), Germany
| |
Collapse
|
216
|
Huang J, Zheng Y, Gao D, Hu M, Yuan T. Effects of Exercise on Depression, Anxiety, Cognitive Control, Craving, Physical Fitness and Quality of Life in Methamphetamine-Dependent Patients. Front Psychiatry 2019; 10:999. [PMID: 32047445 PMCID: PMC6997340 DOI: 10.3389/fpsyt.2019.00999] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 12/17/2019] [Indexed: 01/23/2023] Open
Abstract
Methamphetamine (MA) abuse results in a variety of harmful changes in mood states and cognitive function, together with declined physical health and quality of life. Recent studies highlighted the therapeutic potential of physical exercise on MA addiction. Physical exercise improves emotional state and general health conditions, enhances cognitive function, reduces relapse rate, and facilitates abstinence, thereby improves the overall quality of life of the drug users. This review summarizes the present situation of physical exercise on MA-dependent patients with both animal and clinical population results.
Collapse
Affiliation(s)
- Junhao Huang
- Guangdong Provincial Key Laboratory of Sports and Health Promotion, Scientific Research Center, Guangzhou Sport University, Guangzhou, China
| | - Yuqing Zheng
- Guangdong Provincial Key Laboratory of Sports and Health Promotion, Scientific Research Center, Guangzhou Sport University, Guangzhou, China
| | - Dongdong Gao
- Guangdong Provincial Key Laboratory of Sports and Health Promotion, Scientific Research Center, Guangzhou Sport University, Guangzhou, China
| | - Min Hu
- Guangdong Provincial Key Laboratory of Sports and Health Promotion, Scientific Research Center, Guangzhou Sport University, Guangzhou, China
| | - Tifei Yuan
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China
| |
Collapse
|
217
|
Papageorgiou M, Raza A, Fraser S, Nurgali K, Apostolopoulos V. Methamphetamine and its immune-modulating effects. Maturitas 2018; 121:13-21. [PMID: 30704560 DOI: 10.1016/j.maturitas.2018.12.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 11/29/2018] [Accepted: 12/04/2018] [Indexed: 12/22/2022]
Abstract
The recreational use of methamphetamine (METH, or ice) is a global burden. It pervades and plagues contemporary society; it has been estimated that there are up to 35 million users worldwide. METH is a highly addictive psychotropic compound which acts on the central nervous system, and chronic use can induce psychotic behavior. METH has the capacity to modulate immune cells, giving the drug long-term effects which may manifest as neuropsychiatric disorders, and that increase susceptibility to communicable diseases, such as HIV. In addition, changes to the cytokine balance have been associated with compromise of the blood-brain barrier, resulting to alterations to brain plasticity, creating lasting neurotoxicity. Immune-related signaling pathways are key to further evaluating how METH impacts host immunity through these neurological and peripheral modifications. Combining this knowledge with current data on inflammatory responses will improve understanding of how the adaptive and innate immunity responds to METH, how this can activate premature-ageing processes and how METH exacerbates disturbances that lead to non-communicable age-related diseases, including cardiovascular disease, stroke, depression and dementia.
Collapse
Affiliation(s)
- Marco Papageorgiou
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
| | - Ali Raza
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
| | - Sarah Fraser
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
| | - Kulmira Nurgali
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia; Department of Medicine, The University of Melbourne, Regenerative Medicine and StemCells Program, Australian Institute of Musculoskeletal Science (AIMSS), Melbourne, VIC, Australia.
| | | |
Collapse
|
218
|
Shabani S, Schmidt B, Ghimire B, Houlton SK, Hellmuth L, Mojica E, Phillips TJ. Depression-like symptoms of withdrawal in a genetic mouse model of binge methamphetamine intake. GENES BRAIN AND BEHAVIOR 2018; 18:e12533. [PMID: 30375183 DOI: 10.1111/gbb.12533] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 10/05/2018] [Accepted: 10/27/2018] [Indexed: 12/25/2022]
Abstract
Binge methamphetamine (MA) users have higher MA consumption, relapse rates and depression-like symptoms during early periods of withdrawal, compared with non-binge users. The impact of varying durations of MA abstinence on depression-like symptoms and on subsequent MA intake was examined in mice genetically prone to binge-level MA consumption. Binge-level MA intake was induced using a multiple-bottle choice procedure in which mice were offered one water drinking tube and three tubes containing increasing concentrations of MA in water, or four water tubes (control group). In two studies, depression-like symptoms were measured using a tail-suspension test and a subsequent forced-swim test, after forced abstinence of 6 and 30 hours from a 28-day course of chronic MA intake. An additional study measured the same depression-like symptoms, as well as MA intake, after prolonged abstinence of 1 and 2 weeks. MA high drinking mice and one of their progenitor strains DBA/2J escalated their MA intake with increasing MA concentration; however, MA high drinking mice consumed almost twice as much MA as DBA/2J mice. Depression-like symptoms were significantly higher early after MA access was withdrawn, compared to levels in drug-naïve controls, with more robust effects of MA withdrawal observed in MA high drinking than DBA/2J mice. When depression-like symptoms were examined after 1 or 2 weeks of forced abstinence in MA high drinking mice, depression-like symptoms dissipated, and subsequent MA intake was high. The MA high drinking genetic mouse model has strong face validity for human binge MA use and behavioral sequelae associated with abstinence.
Collapse
Affiliation(s)
- Shkelzen Shabani
- Grand Valley State University, Biomedical Sciences, Allendale, Michigan, USA.,Minot State University, Department of Biology, Minot, North Dakota, USA
| | - Bryan Schmidt
- Minot State University, Department of Biology, Minot, North Dakota, USA
| | - Bikalpa Ghimire
- Minot State University, Department of Biology, Minot, North Dakota, USA
| | - Sydney K Houlton
- Minot State University, Department of Biology, Minot, North Dakota, USA
| | - Laura Hellmuth
- Minot State University, Department of Biology, Minot, North Dakota, USA
| | - Erika Mojica
- Minot State University, Department of Biology, Minot, North Dakota, USA
| | - Tamara J Phillips
- Oregon Health and Science University, Department of Behavioral Neuroscience and Methamphetamine Abuse Research Center, Portland, Oregon, USA.,VA Portland Health Care System, Research Division, Portland, Oregon, USA
| |
Collapse
|
219
|
Breitbarth AK, Morgan J, Jones AL. E-cigarettes-An unintended illicit drug delivery system. Drug Alcohol Depend 2018; 192:98-111. [PMID: 30245461 DOI: 10.1016/j.drugalcdep.2018.07.031] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 06/12/2018] [Accepted: 07/04/2018] [Indexed: 12/15/2022]
Abstract
Since the introduction of electronic cigarettes (e-cigarettes) in 2003, the technology has advanced allowing for greater user modifications, with users now able to control voltage, battery power, and constituents of the e-cigarette liquid. E-cigarettes have been the subject of a growing body of research with most research justifiably focused on the chemical makeup and risk analysis of chemicals, metals, and particulates found in e-cigarette liquids and vapor. Little research to date has focused on assessing the risks associated with the drug delivery unit itself and its potential for use as an illicit drug delivery system. In light of this, a range of illicit drugs was researched focusing on pharmacodynamics, usual method of administration, the dosage required for toxicity, toxic effects, and evidence of existing use in e-cigarettes in both literature and online illicit drug forums. A systematic literature search found evidence of current use of e-cigarettes to vape almost all illicit drug types analyzed. This presents both a potential population health risk and a management issue for clinicians. It also raises the issue of policing illicit drugs due to potential altered characteristic smells and storage within e-cigarette fluids. E-cigarettes are a viable illicit drug delivery system with evidence both inside and outside of the formal medical literature detailing their potential use for drug delivery of a wide range of illicit and legal drugs.
Collapse
Affiliation(s)
| | - Jody Morgan
- Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia; Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, NSW, 2522, Australia.
| | - Alison L Jones
- Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia; Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, NSW, 2522, Australia
| |
Collapse
|
220
|
Intersecting burdens: Homophobic victimization, unstable housing, and methamphetamine use in a cohort of men of color who have sex with men. Drug Alcohol Depend 2018; 192:179-185. [PMID: 30266002 PMCID: PMC6200602 DOI: 10.1016/j.drugalcdep.2018.07.039] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 07/12/2018] [Accepted: 07/25/2018] [Indexed: 01/16/2023]
Abstract
BACKGROUND Men who have sex with men with histories of homophobic victimization bear heightened risk of unstable housing and methamphetamine use. However, it is unclear whether unstable housing explains the link between homophobic victimization and methamphetamine use in this group. The present study aims to test associations between homophobic victimization, unstable housing, and recent methamphetamine use across 24 months in a cohort of men of color who have sex with men (MoCSM). METHODS Our analysis stems from data of 1342 person-visits from 401 MoCSM participating in an ongoing cohort study. We performed a lagged multilevel negative binominal regression to test the association between past homophobic victimization and recent unstable housing, and a lagged multilevel ordered logistic regression to test the association between past homophobic victimization recent methamphetamine use. We then performed a path analysis to test whether recent unstable housing mediates the association between past homophobic victimization and recent methamphetamine use. RESULTS Findings showed homophobic victimization associated significantly with increased odds of unstable housing (IRR = 1.70, 95% CI [1.35, 2.14], p < 0.001) and recent methamphetamine use (OR = 1.40, 95% CI [1.15, 1.71], p = 0.001). Mediation analysis indicated that past homophobic victimization was indirectly associated with recent methamphetamine use via unstable housing (OR = 1.06 (95% CI [1.01, 1.11], p = 0.010). CONCLUSION Our findings suggest that homophobic victimization and unstable housing should be addressed alongside treatment and prevention of methamphetamine use in MoCSM.
Collapse
|
221
|
Abstract
Methamphetamine has the second highest prevalence of drug abuse after cannabis, with estimates of 35 million users worldwide. The ( S)-(+)-enantiomer is the illicit drug, active neurostimulant, and eutomer, while the ( R)-(-)-enantiomer is contained in over the counter decongestants. While designated a schedule II drug in 1970, ( S)-(+)-methamphetamine is available by prescription for the treatment of attention-deficit disorder and obesity. The illicit use of ( S)-(+)-methamphetamine results in the sudden "rush" of stimulation to the motivation, movement, pleasure, and reward centers in the brain, caused by rapid release of dopamine. In this review, we will provide an overview of the synthesis, pharmacology, adverse effects, and drug metabolism of this widely abused psychostimulant that distinguish it as a DARK classic in Chemical Neuroscience.
Collapse
Affiliation(s)
- Thomas J. Abbruscato
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, Texas 79106, United States
| | - Paul C. Trippier
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, Texas 79106, United States
| |
Collapse
|
222
|
Wang Z, Xu Z, Li X. Biodegradation of methamphetamine and ketamine in aquatic ecosystem and associated shift in bacterial community. JOURNAL OF HAZARDOUS MATERIALS 2018; 359:356-364. [PMID: 30048950 DOI: 10.1016/j.jhazmat.2018.07.039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 07/05/2018] [Accepted: 07/09/2018] [Indexed: 06/08/2023]
Abstract
Methamphetamine (METH) and ketamine (KET) are widely detected in surface waters and thus may pose threat to aquatic organisms. However, their degradation in aquatic systems and the effects on bacterial community were unknown. The present study investigated the biodegradation process of METH and KET in river waters and sediments. Three microcosms were examined over 40-days' incubation under (i) aerobic and illumination conditions, (ii) anaerobic condition exposed to light, (iii) anaerobic-dark condition. Statistically significant biodegradation of METH and KET (1 mg L-1) was observed in all treatments. The half-lives under the examined conditions indicate that the two drugs were refractory in aquatic environment. Moreover, there were no pronounced absorption and photolysis observed in this work. Illumina MiSeq sequencing analysis revealed that Methylophilaceae, Saprospiraceae, WCHB1-69, Desulfobulbaceae, Porphyromonadaceae, FamilyXI, Peptococcaceae, and Rhizobiaceae were the predominant candidatus families during KET and METH biodegradation, and the preponderance would impair other microorganisms' prosperity since them were scarcely detected in the wild. Meanwhile, canonical correlation analysis (CCA) indicates that METH as an environmental factor may affect bacterial community structure in field water samples.
Collapse
Affiliation(s)
- Zhenglu Wang
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Zeqiong Xu
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Xiqing Li
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China.
| |
Collapse
|
223
|
Lee NK, Jenner L, Harney A, Cameron J. Pharmacotherapy for amphetamine dependence: A systematic review. Drug Alcohol Depend 2018; 191:309-337. [PMID: 30173086 DOI: 10.1016/j.drugalcdep.2018.06.038] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 06/20/2018] [Accepted: 06/21/2018] [Indexed: 12/25/2022]
Abstract
BACKGROUND Demand for treatment for amphetamine use is increasing internationally. Establishing effective pharmacotherapy provides broader treatment options for people who are dependent on amphetamine and may encourage engagement in evidence-based behavioral treatment. This study aimed to identify medicines that have potential in improving treatment outcomes for people who are dependent on amphetamines. METHODS Medline, PsycINFO, Embase and the Cochrane Database of Systematic Reviews were searched from 1997 to 2012 and again from 2013 to 2016. Studies on medications for amphetamine/methamphetamine dependence treatment were selected and assessed by two independent researchers. A meta-narrative review approach was used to synthesize results. RESULTS A total of 49 studies investigating 20 potential pharmacotherapies were eligible for inclusion. Of these, 35 studies related to 33 level II quality randomized controlled trials (RCTs). Five medications were subject to multiple RCTs. Four of these medicines demonstrated some limited evidence of benefit for reducing amphetamine use: methylphenidate (as reported in three studies), bupropion (in three studies), modafinil (two studies), and naltrexone (one study). Four RCTs of dexamphetamine suggest its benefit on secondary outcomes such as treatment retention, but not for reducing amphetamine use. Six other medicines indicate the potential for efficacy, but the number of studies is too small to draw conclusions. CONCLUSIONS No medicine has as yet demonstrated sufficient, consistent evidence of effectiveness to support its use in routine treatment. High study drop-out and poor medication adherence limits the strength of evidence and raises important clinical questions about how to improve treatment engagement and outcomes.
Collapse
Affiliation(s)
- Nicole K Lee
- National Drug Research Institute, Curtin University, 7 Parker Place, Bentley, WA, 6102, Australia; 360Edge Consulting, P.O. Box 359, Elwood, 3184, Victoria, Australia.
| | - Linda Jenner
- 360Edge Consulting, P.O. Box 359, Elwood, 3184, Victoria, Australia
| | - Angela Harney
- 360Edge Consulting, P.O. Box 359, Elwood, 3184, Victoria, Australia
| | - Jacqui Cameron
- 360Edge Consulting, P.O. Box 359, Elwood, 3184, Victoria, Australia; Department of General Practice, University of Melbourne, 200 Berkeley Street, Carlton, Victoria, 3053, Australia
| |
Collapse
|
224
|
Zhang Y, Shu G, Bai Y, Chao J, Chen X, Yao H. Effect of methamphetamine on the fasting blood glucose in methamphetamine abusers. Metab Brain Dis 2018; 33:1585-1597. [PMID: 29946958 DOI: 10.1007/s11011-018-0265-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 06/04/2018] [Indexed: 11/30/2022]
Abstract
Methamphetamine is a popular psychostimulant worldwide which causes neurotoxicity and neuroinflammation. Although previous studies have characterized potential associations between addictive drugs and fasting blood glucose, the influence of methamphetamine on the blood glucose is still largely unknown. The present study was designed to investigate the change of fasting blood glucose of methamphetamine abusers and to confirm the impairment of liver and kidney. Fasting blood glucose was significantly decreased in methamphetamine abusers and in a high-fat diet mouse model with methamphetamine treatment discontinuation. Serum level of ALT, creatine kinase and creatinine were increased in methamphetamine abusers. Serum level of ALT and AST were increased in a high-fat diet mouse model after methamphetamine injection, but there was no significant difference in the anatomy of the liver and kidney in high-fat diet treated mice with or without methamphetamine. The levels of ALT and creatinine were also increased in the methamphetamine abusers. This study demonstrated that the level of glucose was decreased in methamphetamine abusers and in high-fat diet-fed mice after methamphetamine treatment discontinuation. The effect of methamphetamine on the levels of blood glucose may provide the evidence that methamphetamine abusers should be keep energy balance due to the low blood glucose.
Collapse
Affiliation(s)
- Yanhong Zhang
- Department of Pharmacology, Medical School of Southeast University, Nanjing, China
| | - Guofang Shu
- Department of Clinical Laboratory, Zhongda Hospital, Southeast University School of Medicine, Nanjing, 210009, Jiangsu, China
| | - Ying Bai
- Department of Pharmacology, Medical School of Southeast University, Nanjing, China
| | - Jie Chao
- Department of Physiology, Medical School of Southeast University, Nanjing, China
| | - Xufeng Chen
- Department of Emergency, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
| | - Honghong Yao
- Department of Pharmacology, Medical School of Southeast University, Nanjing, China.
- Institute of Life Sciences, Key Laboratory of Developmental Genes and Human Disease, Southeast University, Nanjing, Jiangsu, China.
| |
Collapse
|
225
|
Noorbakhshnia M, Rashidkaboli A, Pakatchian M, Beheshti S. Agmatine attenuates methamphetamine-induced passive avoidance learning and memory and CaMKII-α gene expression deteriorations in hippocampus of rat. Physiol Behav 2018; 194:491-496. [PMID: 29908234 DOI: 10.1016/j.physbeh.2018.06.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 05/18/2018] [Accepted: 06/12/2018] [Indexed: 10/28/2022]
Abstract
Methamphetamine (METH) abuse is one the most worldwide problems with wide-ranging effects on the central nervous system (CNS). Chronic METH abuse can associate with cognitive abnormalities and neurodegenerative changes in the brain. Agmatine, a cationic polyamine, has been proposed as a neuromodulator that modulates many effects of abused drugs. The aim of this study was to determine if agmatine can decrease the impairment effect of METH on memory and hippocampal CaMKII-α gene expression, a gene that plays a major role in memory. Male wistar rats (200-220 g) were allocated into 7 groups, including 5 groups of saline, METH (1, 2 mg/kg), Agmatine (5, 10 mg/kg) and 2 groups of agmatine (5, 10 mg/kg) with higher doses of METH (2 mg/kg) for 5 consecutive days (n = 8 in each group). All injections were done intraperitoneally and agmatine was administrated 10 min before METH treatment. Furthermore, Passive avoidance learning (PAL) test was assessed on the 5th day. Retention test was done 24 h after training and the rats were sacrificed immediately. Hippocampi were removed and stored at -80 °C. Finally, hippocampal CaMKII-α gene expression was measured using Quantitative Real-time PCR. Our data showed that chronic METH dose-dependently impaired PAL retrieval, as it decreased step-through latency (STL) and increased time spent in the dark compartment (TDC). While Agmatine with a higher dose (10 mg/kg) significantly decreased impairment effect of METH (2 mg/kg) on PAL and memory. Also, molecular results revealed that METH (2 mg/kg) markedly decreased hippocampal CaMKII-α gene expression while agmatine (10 mg/kg) co-adminstration prevented it. Taken together, the results propose that agmatine may provide a potential therapy for learning and memory deficits induced by METH.
Collapse
Affiliation(s)
- Maryam Noorbakhshnia
- Department of Biology, Faculty of Sciences, University of Isfahan, Isfahan. Iran.
| | - Arsham Rashidkaboli
- Department of Biology, Faculty of Sciences, University of Isfahan, Isfahan. Iran
| | - Mahnaz Pakatchian
- Department of Biology, Faculty of Sciences, University of Isfahan, Isfahan. Iran
| | - Siamak Beheshti
- Department of Biology, Faculty of Sciences, University of Isfahan, Isfahan. Iran
| |
Collapse
|
226
|
Schmidt U, Flössel U, Pietsch J, Dinger J, Engel A, Forberger A, Nitzsche K. Intrauterine und perinatale Todesfälle bei maternalem Methamphetaminkonsum. Rechtsmedizin (Berl) 2018. [DOI: 10.1007/s00194-018-0269-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
227
|
Akhiary M, Purvis EM, Klein AK, Ettenberg A. Methamphetamine self-administration in a runway model of drug-seeking behavior in male rats. Pharmacol Biochem Behav 2018; 175:27-32. [PMID: 30196087 DOI: 10.1016/j.pbb.2018.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 09/05/2018] [Accepted: 09/06/2018] [Indexed: 12/27/2022]
Abstract
Cocaine administration has been shown to produce immediate positive (rewarding) and subsequent negative (anxiogenic) effects in humans and animals. These dual and opposing affective responses have been more difficult to demonstrate with administration of methamphetamine (meth). While animal studies have reliably demonstrated the positive reinforcing effects of the drug, reports of negative aftereffects following acute exposure have been few in number and contradictory in nature. The current research was devised to assess the effects of acute meth using a runway model of self-administration that is uniquely sensitive to both the positive and negative effects of a drug reinforcer in the same animal on the same trial. Male rats were allowed to traverse a straight alley once a day for 16 consecutive days/trials where entry into the goal box resulted in a single IV injection of meth (0.25, 0.5 or 1.0 mg/kg/inj.). The chosen doses were confirmed to be psychoactive as they produced dose-dependent increases in motoric/locomotor activation in these same subjects. The results demonstrated a U-shaped dose-response curve for the reinforcing effects of meth in that the intermediate dose group (0.5 mg/kg) produced the strongest approach behavior in the runway. Unlike other psychomotor stimulants, like cocaine, animals running for IV meth exhibited no evidence of any significant approach-avoidance behaviors reflective of the drug's negative anxiogenic effects. These results suggest that the abuse potential for meth is likely higher than for other shorter-acting psychomotor stimulants and reaffirms the utility of the runway procedure as a screen for a substance's abuse potential.
Collapse
Affiliation(s)
- Mona Akhiary
- Behavioral Pharmacology Laboratory, Department of Psychological & Brain Sciences, University of California, Santa Barbara, CA 93109-9660, USA
| | - Erin M Purvis
- Behavioral Pharmacology Laboratory, Department of Psychological & Brain Sciences, University of California, Santa Barbara, CA 93109-9660, USA
| | - Adam K Klein
- Behavioral Pharmacology Laboratory, Department of Psychological & Brain Sciences, University of California, Santa Barbara, CA 93109-9660, USA
| | - Aaron Ettenberg
- Behavioral Pharmacology Laboratory, Department of Psychological & Brain Sciences, University of California, Santa Barbara, CA 93109-9660, USA.
| |
Collapse
|
228
|
Briones M, Shoptaw S, Cook R, Worley M, Swanson AN, Moody DE, Fang WB, Tsuang J, Furst B, Heinzerling K. Varenicline treatment for methamphetamine dependence: A randomized, double-blind phase II clinical trial. Drug Alcohol Depend 2018; 189:30-36. [PMID: 29860057 PMCID: PMC6391991 DOI: 10.1016/j.drugalcdep.2018.04.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Revised: 04/26/2018] [Accepted: 04/28/2018] [Indexed: 02/01/2023]
Abstract
BACKGROUND Previous studies have suggested that varenicline, an α4β2 nicotinic receptor partial agonist, and α7 nicotinic receptor full agonist, may be effective for the treatment of methamphetamine (MA) dependence due to dopaminergic effects, relief of glutamatergic and cognitive dysfunction, and activation of nicotinic cholinergic systems. This study aimed to determine if varenicline (1 mg BID) resulted in reduced methamphetamine use compared to placebo among treatment-seeking MA-dependent volunteers. METHODS Treatment-seeking MA-dependent volunteers were randomized to varenicline 1 mg twice daily (n = 27) or placebo (n = 25) and cognitive behavioral therapy for 9 weeks. The primary outcomes were the proportion of participants achieving end-of-treatment-abstinence (EOTA, MA-negative urine specimens during weeks 8 and 9) and the treatment effectiveness score (TES, number of MA-negative urine specimens) for varenicline versus placebo. RESULTS There was no significant difference in EOTA between varenicline (15%, 4/27) and placebo (20%, 5/25; p = 0.9). There was some suggestion that urinary confirmed medication compliance corresponded with EOTA in the varenicline condition, though it did not reach statistical significance, OR = 1.57 for a 100 ng/ml increase in urine varenicline, p = 0.10, 95% CI (0.99, 3.02). There was no significant difference in mean TES in the varenicline condition (8.6) compared to the placebo condition (8.1), and treatment condition was not a statistically significant predictor of TES, IRR = 1.01, p = 0.9, 95% CI (0.39, 2.70). CONCLUSIONS The results of this study indicate that 1 mg varenicline BID was not an effective treatment for MA dependence among treatment-seeking MA-dependent volunteers.
Collapse
Affiliation(s)
- Marisa Briones
- Department of Family Medicine, University of California, Los Angeles, Los Angeles, CA, USA.
| | - Steven Shoptaw
- Department of Family Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Ryan Cook
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, USA
| | - Matthew Worley
- Department of Family Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Aimee-Noelle Swanson
- Department of Family Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - David E. Moody
- Center for Human Toxicology, Department of Pharmacology and Toxicology, University of Utah, Salt Lake City, UT, USA
| | - Wenfang B. Fang
- Center for Human Toxicology, Department of Pharmacology and Toxicology, University of Utah, Salt Lake City, UT, USA
| | - John Tsuang
- Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA, USA
| | - Benjamin Furst
- Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA, USA
| | - Keith Heinzerling
- Department of Family Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| |
Collapse
|
229
|
Ji H, Liu G, Xu X, Liu H, Xu L, Hu H, Chen Y, Hong Q, Wang Q, Shen W, Li L, Xie X, Zhou W, Duan S. Hypermethylation of the κ1 opioid receptor promoter in Chinese heroin and methamphetamine addicts. Exp Ther Med 2018; 16:2392-2398. [PMID: 30210591 PMCID: PMC6122531 DOI: 10.3892/etm.2018.6514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 04/11/2017] [Indexed: 12/20/2022] Open
Abstract
Heroin and methamphetamine (METH) addiction continues to be a major social, economic and therapeutic problem worldwide. The opioid pathway may mediate the effects of addictive drugs. However, the potential correlation between the κ1 opioid receptor (OPRK1) and drug addiction has not yet been characterized. The aim of the present study was to investigate the potential association between methylation of the OPRK1 promoter and substance abuse. Bisulfite pyrosequencing technology was used to determine the levels of OPRK1 promoter methylation in 60 drug abusers (30 heroin and 30 METH addicts) and 52 controls, observed to exhibit no significant differences in age or gender. The results indicated that levels of OPRK1 promoter methylation were significantly higher in drug addicts when compared with controls (P=2.43×10−4). Significant correlations between OPRK1 promoter methylation and the length and frequency of drug use were also observed in male heroin addicts (length: r=0.661, P=0.007; frequency: r=−0.684, P=0.005). In addition, a luciferase reporter gene assay indicated that the OPRK1 promoter fragment was able to regulate gene expression (fold change between two groups >32.12, P≤0.0001). In conclusion, results of the present study indicate that methylation of the OPRK1 promoter contributes to the pathophysiology of drug addiction.
Collapse
Affiliation(s)
- Huihui Ji
- Medical Genetics Center, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Guili Liu
- Medical Genetics Center, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Xuting Xu
- Medical Genetics Center, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Huifen Liu
- Laboratory of Behavioral Neuroscience, Ningbo Addiction Research and Treatment Center, Ningbo, Zhejiang 315010, P.R. China
| | - Lei Xu
- Medical Genetics Center, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Haochang Hu
- Medical Genetics Center, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Yingmin Chen
- Medical Genetics Center, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Qinxiao Hong
- Laboratory of Behavioral Neuroscience, Ningbo Addiction Research and Treatment Center, Ningbo, Zhejiang 315010, P.R. China
| | - Qinwen Wang
- Medical Genetics Center, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Wenwen Shen
- Laboratory of Behavioral Neuroscience, Ningbo Addiction Research and Treatment Center, Ningbo, Zhejiang 315010, P.R. China
| | - Longhui Li
- Laboratory of Behavioral Neuroscience, Ningbo Addiction Research and Treatment Center, Ningbo, Zhejiang 315010, P.R. China
| | - Xiaohu Xie
- Laboratory of Behavioral Neuroscience, Ningbo Addiction Research and Treatment Center, Ningbo, Zhejiang 315010, P.R. China
| | - Wenhua Zhou
- Laboratory of Behavioral Neuroscience, Ningbo Addiction Research and Treatment Center, Ningbo, Zhejiang 315010, P.R. China
| | - Shiwei Duan
- Medical Genetics Center, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| |
Collapse
|
230
|
Natarajan R, Mitchell CM, Harless N, Yamamoto BK. Cerebrovascular Injury After Serial Exposure to Chronic Stress and Abstinence from Methamphetamine Self-Administration. Sci Rep 2018; 8:10558. [PMID: 30002494 PMCID: PMC6043597 DOI: 10.1038/s41598-018-28970-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 07/04/2018] [Indexed: 01/19/2023] Open
Abstract
Cerebrovascular damage caused by either exposure to stress or the widely abused drug, methamphetamine (Meth) is known but stress and drug abuse frequently occur in tandem that may impact their individual cerebrovascular effects. This study examined their co-morbid cerebrovascular effects during abstinence from self-administered Meth after the exposure to chronic unpredictable stress (CUS). Exposure to CUS prior to unrestricted Meth self-administration had no effect on Meth intake in rats; however, the pro-inflammatory mediator cyclooxygenase-2 (COX-2) and the breakdown of cell-matrix adhesion protein β-dystroglycan in isolated cerebral cortical capillaries were increased after 3 days of abstinence and persisted for 7 days. These changes preceded decreases in occludin, a key structural protein component of the blood-brain barrier. The decrease in occludin was blocked by the COX-2 specific inhibitor nimesulide treatment during abstinence from Meth. The changes in COX-2, β-dystroglycan, and occludin were only evident following the serial exposure to stress and Meth but not after either one alone. These results suggest that stress and voluntary Meth intake can synergize and disrupt cerebrovasculature in a time-dependent manner during abstinence from chronic stress and Meth. Furthermore, COX-2 inhibition may be a viable pharmacological intervention to block vascular changes after Meth exposure.
Collapse
Affiliation(s)
- Reka Natarajan
- Department of Pharmacology and Toxicology, Indiana University School of Medicine 635 Barnhill Drive MS A401, Indianapolis, IN, 46202, USA
| | - Carmen M Mitchell
- Department of Pharmacology and Toxicology, Indiana University School of Medicine 635 Barnhill Drive MS A401, Indianapolis, IN, 46202, USA
| | - Nicole Harless
- Department of Neurosciences, University of Toledo College of Medicine 3000 Arlington Avenue MS 1007, Toledo, OH, 43614, Spain
| | - Bryan K Yamamoto
- Department of Pharmacology and Toxicology, Indiana University School of Medicine 635 Barnhill Drive MS A401, Indianapolis, IN, 46202, USA.
| |
Collapse
|
231
|
Callaghan RC, Halliday M, Gatley J, Sykes J, Taylor L, Benny C, Kish SJ. Comparative hazards of acute myocardial infarction among hospitalized patients with methamphetamine- or cocaine-use disorders: A retrospective cohort study. Drug Alcohol Depend 2018; 188:259-265. [PMID: 29793190 DOI: 10.1016/j.drugalcdep.2018.03.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 03/20/2018] [Accepted: 03/25/2018] [Indexed: 10/17/2022]
Abstract
BACKGROUND It is assumed that recreational use of methamphetamine can trigger acute myocardial infarction (AMI) events, but estimates of longitudinal hazards of AMI among methamphetamine users are lacking. METHODS Retrospective cohort study: Competing-risks analysis was used to estimate time-to-AMI patterns in methamphetamine versus matched appendicitis (population-proxy) and matched cocaine (drug-control) groups. Cohorts were propensity-score-matched using demographic and clinical variables. SETTING California, 1990-2005. PARTICIPANTS Cohorts of individuals with no prior or concurrent history of AMI hospitalized with methamphetamine- (n = 73,056), cocaine- (n = 47,726), or appendicitis-related conditions (n = 330,109). MEASUREMENTS ICD-9/ICD-10 indications of AMI (ICD-9 410.X; ICD-10 I21.X) in death records or inpatient hospital data. RESULTS Patients in methamphetamine cohort were more likely to develop subsequent AMI in comparison to those in matched appendicitis cohort [Hazard ratio (HR): 1.41; 95% CI, 1.23-1.62, p < 0.0001], with increased risk most marked in young methamphetamine users (age 15-34 years; HR: 2.04; 95% CI, 1.63-2.57, p = 0. 0001). Risk was slightly increased vs. that in matched cocaine group (HR: 1.19; 95% CI, 1.02-1.39, p = 0. 029). Individuals in cocaine cohort were also more likely to experience AMI outcome vs. appendicitis cohort (HR: 1.25; 95% CI, 1.08-1.45, p = 0. 0023). CONCLUSION Our longitudinal data support results of earlier epidemiological studies suggesting that persons with methamphetamine- (or cocaine-) use disorders might have increased AMI risk. However, because of potential study limitations and the unexpectedly modest magnitude of the observed increased AMI hazard, these findings must be considered preliminary and require replication.
Collapse
Affiliation(s)
- Russell C Callaghan
- Northern Medical Program, University of Northern British Columbia (UNBC), 3333 University Way, Prince George, BC V2N 4Z9, Canada; Human Brain Laboratory, Centre for Addiction and Mental Health (CAMH), 33 Russell St., Toronto, ON M5S 2S1, Canada; Canadian Institute for Substance Use Research, University of Victoria, PO Box 1700 STN CSC, Victoria, BC V8W 2Y2, Canada.
| | - Montana Halliday
- Northern Medical Program, University of Northern British Columbia (UNBC), 3333 University Way, Prince George, BC V2N 4Z9, Canada
| | - Jodi Gatley
- Communicable Diseases, Emergency Preparedness and Response Public Health Ontario, 480 University Ave, Suite 300, Toronto, ON M5G 1V2, Canada
| | - Jenna Sykes
- St. Michael's Hospital, 30 Bond St, Toronto, ON M5 B 1W8, Canada
| | - Lawren Taylor
- Work Stress and Health Service, Centre for Addiction and Mental Health (CAMH),455 Spadina Avenue, Suite 210, Toronto, ON M5S 2G8, Canada
| | - Claire Benny
- School of Population and Public Health, University of British Columbia, 2206 East Mall, Vancouver, BC V6T 1Z3, Canada
| | - Stephen J Kish
- Human Brain Laboratory, Centre for Addiction and Mental Health (CAMH), 33 Russell St., Toronto, ON M5S 2S1, Canada
| |
Collapse
|
232
|
Wang LJ, Chen CK, Lin SK, Chen YC, Xu K, Huang MC. Cognitive profile of ketamine-dependent patients compared with methamphetamine-dependent patients and healthy controls. Psychopharmacology (Berl) 2018; 235:2113-2121. [PMID: 29713787 DOI: 10.1007/s00213-018-4910-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 04/17/2018] [Indexed: 01/22/2023]
Abstract
BACKGROUND Ketamine has emerged as a major substance of abuse worldwide and has been listed with methamphetamine (METH) as two of the most widely available illicit substances in Taiwan. Only a few studies have examined the long-term consequences of chronic and heavy ketamine abuse. We compared the cognitive function of ketamine-dependent patients with that of METH-dependent patients and healthy controls. METHODS We recruited 165 participants (58 ketamine-dependent and 49 METH-dependent patients who sought treatment and 58 healthy controls) and evaluated them by using a cognitive test battery, the Brief Assessment of Cognition in Schizophrenia, with scores being estimated in reference to normative data in general population. RESULTS The ketamine-dependent patients had significantly poorer performance than did the controls in many cognitive tests, including verbal memory, motor speed, verbal fluency, and attention and processing speed, and the battery as a whole. METH-dependent patients exhibited poorer function in motor speed, verbal fluency, and attention and processing speed. The ketamine group performed poorer than did METH group in the domains of verbal memory, working memory, and attention and processing speed and the composite battery scores. A previous experience of ketamine-induced psychotomimetic symptoms, using higher doses of ketamine, and longer abstinence appeared to be associated with performance in some tests; however, the significance disappeared after multiple comparison correction. CONCLUSIONS The ketamine-dependent patients had impaired cognitive function, and METH-dependent patients exhibited intermediate performance between ketamine-dependent patients and healthy controls. Given the growing population of ketamine abusers, public education on the cognitive consequences should be provided.
Collapse
Affiliation(s)
- Liang-Jen Wang
- Department of Child and Adolescent Psychiatry, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Department of Psychiatry, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Chih-Ken Chen
- Department of Psychiatry, Chang Gung Memorial Hospital, Keelung, Taiwan.,Chang Gung University School of Medicine, Taoyuan, Taiwan
| | - Shih-Ku Lin
- Taipei City Psychiatric Center, Taipei City Hospital, Taipei, Taiwan.,Department of Psychiatry, School of Medicine, College of Medicine, Taipei Medical University, 309, Song-De Road, Taipei, Taiwan
| | - Yi-Chih Chen
- Department of Psychiatry, Chang Gung Memorial Hospital, Keelung, Taiwan.,Chang Gung University School of Medicine, Taoyuan, Taiwan
| | - Ke Xu
- Department of Psychiatry, Yale School of Medicine, New Heaven, CT, USA
| | - Ming-Chyi Huang
- Taipei City Psychiatric Center, Taipei City Hospital, Taipei, Taiwan. .,Department of Psychiatry, School of Medicine, College of Medicine, Taipei Medical University, 309, Song-De Road, Taipei, Taiwan.
| |
Collapse
|
233
|
Arunogiri S, Foulds JA, McKetin R, Lubman DI. A systematic review of risk factors for methamphetamine-associated psychosis. Aust N Z J Psychiatry 2018; 52:514-529. [PMID: 29338289 DOI: 10.1177/0004867417748750] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Chronic methamphetamine use is commonly associated with the development of psychotic symptoms. The predictors and correlates of methamphetamine-associated psychosis are poorly understood. We sought to systematically review factors associated with psychotic symptoms in adults using illicit amphetamine or methamphetamine. METHODS A systematic literature search was performed on MEDLINE (OVID), PsycINFO and EMBASE databases from inception to 8 December 2016. The search strategy combined three concept areas: methamphetamine or amphetamine, psychosis and risk factors. Included studies needed to compare adults using illicit methamphetamine or amphetamine, using a validated measure of psychosis, on a range of risk factors. Of 402 identified articles, we removed 45 duplicates, 320 articles based on abstract/title and 17 ineligible full-text articles, leaving 20 included studies that were conducted in 13 populations. Two co-authors independently extracted the following data from each study: country, setting and design; participant demographic and clinical details; sample size; measure/s used and measures of association between psychosis outcomes and risk factors. Individual study quality was assessed using a modified Newcastle-Ottawa Scale, and strength of evidence was assessed using GRADE criteria. RESULTS Frequency of methamphetamine use and severity of methamphetamine dependence were consistently found to be associated with psychosis, and sociodemographic factors were not. There was inconsistent evidence available for all other risk factors. Individual study quality was low-moderate for the majority of studies. Heterogeneity in study outcomes precluded quantitative synthesis of outcomes across studies. CONCLUSION The most consistent correlates of psychotic symptoms were increased frequency of methamphetamine use and dependence on methamphetamine. The findings of this review highlight the need for targeted assessment and treatment of methamphetamine use in individuals presenting with psychosis.
Collapse
Affiliation(s)
- Shalini Arunogiri
- 1 Turning Point, Eastern Health, Fitzroy, VIC, Australia.,2 Eastern Health Clinical School, Monash University, Melbourne, VIC, Australia
| | - James A Foulds
- 3 Department of Psychological Medicine, University of Otago, Christchurch, New Zealand
| | - Rebecca McKetin
- 4 National Drug Research Institute, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
| | - Dan I Lubman
- 1 Turning Point, Eastern Health, Fitzroy, VIC, Australia.,2 Eastern Health Clinical School, Monash University, Melbourne, VIC, Australia
| |
Collapse
|
234
|
Anderson JE, Brown IE, Olson KA, Iverson K, Cocanour CS, Galante JM. Nonocclusive mesenteric ischemia in patients with methamphetamine use. J Trauma Acute Care Surg 2018; 84:885-892. [PMID: 29462085 DOI: 10.1097/ta.0000000000001855] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Data suggest that methamphetamine may increase the risk of nonocclusive mesenteric ischemia (NOMI). We describe patterns of presentation and outcomes of patients with methamphetamine use who present with NOMI to a single institution. METHODS This is an observational study of patients from January 2015 to September 2017 with methamphetamine use who presented with NOMI at an academic medical center in Northern California. We summarize patient comorbidities, clinical presentation, operative findings, pathologic findings, hospital course, and survival. RESULTS Ten patients with methamphetamine use and severe NOMI were identified. One patient was readmitted with a perforated duodenal ulcer, for a total of 11 encounters. Most presented with acute (n = 3) or acute-on-chronic (n = 4) abdominal pain. Distribution of ischemia ranged from perforated duodenal ulcer (n = 3), ischemia of the distal ileum (n = 1), ischemia of entire small bowel (n = 2), and patchy necrosis of entire small bowel and colon (n = 5). Six patients died, three within 1 week of admission and three between 3 months and 8 months. CONCLUSION Methamphetamine use may be associated with significant microvascular compromise, increasing the risk of mesenteric ischemia. Providers in areas with high prevalence of methamphetamine use should have a high index of suspicion for intestinal ischemia in this patient population. Patients with methamphetamine use admitted for trauma or other pathology may be at particular risk of ischemia and septic shock, especially in the setting of dehydration. Use of vasoconstrictors in this patient population may also exacerbate intestinal ischemia. LEVEL OF EVIDENCE Therapeutic Case series study, level V.
Collapse
Affiliation(s)
- Jamie E Anderson
- From the Department of Surgery (J.E.A., I.E.B., K.I., C.S.C., J.M.G.), and Department of Pathology, (K.A.O.), University of California Davis Health, Sacramento, California
| | | | | | | | | | | |
Collapse
|
235
|
|
236
|
Effect of Methamphetamine Hydrochloride on Pregnancy Outcome: A Systematic Review and Meta-analysis. J Addict Med 2018; 12:220-226. [DOI: 10.1097/adm.0000000000000391] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
237
|
Kwon NJ, Han E. A commentary on the effects of methamphetamine and the status of methamphetamine abuse among youths in South Korea, Japan, and China. Forensic Sci Int 2018; 286:81-85. [DOI: 10.1016/j.forsciint.2018.02.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 10/31/2017] [Accepted: 02/18/2018] [Indexed: 12/11/2022]
|
238
|
Zou X, Huang H, Yang L, Liu H, Li Y, Xia Q, Yuan S, Yao S. Methamphetamine consumption and life-threatening abdominal complications: A case report. Medicine (Baltimore) 2018; 97:e0647. [PMID: 29718879 PMCID: PMC6392995 DOI: 10.1097/md.0000000000010647] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
RATIONALE Methamphetamine (METH) abuse is increasing rapidly all over the world and becoming a significant public health concern in China. However, abdominal complications secondary to METH abuse are usually overlooked. We describe an unusual case of gangrenous cholecystitis and small intestinal ischemia due to METH abuse. PATIENT CONCERNS In this report, a 44-year-old male patient with abdominal pain and hematochezia has a history of crystal meth abuse. DIAGNOSIS The patient was diagnosed as septic shock, paralytic ileus, gangrenous cholecystitis, and small intestinal ischemia due to METH abuse based on computed tomography (CT) scan, endoscopy examination, laparotomy, and pathology. INTERVENTIONS Antishock treatment, broad-spectrum antibiotics, and exploratory laparotomy were given. OUTCOMES The patient survived. Six months later, he tolerated oral intake and stopped using crystal METH. LESSONS Visceral ischemia should be considered if an adult patient with a history of METH abuse is accompanied by abdominal pain and hematochezia.
Collapse
Affiliation(s)
- Xiaojing Zou
- Department of Critical Care Medicine
- Institute of Anesthesiology and Critical Care Medicine, Union Hospital
| | - Haiyan Huang
- Department of Critical Care Medicine
- Institute of Anesthesiology and Critical Care Medicine, Union Hospital
| | - Le Yang
- Department of Emergency Internal Medicine, Tongji Hospital
| | - Hong Liu
- Department of Critical Care Medicine
- Institute of Anesthesiology and Critical Care Medicine, Union Hospital
| | | | - Qin Xia
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Shiying Yuan
- Department of Critical Care Medicine
- Institute of Anesthesiology and Critical Care Medicine, Union Hospital
| | - Shanglong Yao
- Department of Critical Care Medicine
- Institute of Anesthesiology and Critical Care Medicine, Union Hospital
| |
Collapse
|
239
|
Dassanayake AF, Canales JJ. Replacement treatment during extinction training with the atypical dopamine uptake inhibitor, JHW-007, reduces relapse to methamphetamine seeking. Neurosci Lett 2018; 671:88-92. [PMID: 29452175 DOI: 10.1016/j.neulet.2018.02.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 01/26/2018] [Accepted: 02/12/2018] [Indexed: 12/29/2022]
Abstract
There are currently no approved medications to effectively counteract the effects of methamphetamine (METH), reduce its abuse and prolong abstinence from it. Data accumulated in recent years have shown that a range of N-substituted benztropine (BZT) analogues possesses psychopharmacological features consistent with those of a potential replacement or "substitute" treatment for stimulant addiction. On the other hand, the evidence that antidepressant therapy may effectively prevent relapse to stimulant seeking is controversial. Here, we compared in rats the ability of the BZT analogue and high affinity dopamine (DA) reuptake inhibitor, JHW-007, and the antidepressant, trazodone, administered during extinction sessions after chronic METH self-administration, to alter METH-primed reinstatement of drug seeking. The data showed that trazodone produced paradoxical effects on lever pressing during extinction of METH self-administration, decreasing active, but increasing inactive, lever pressing. JHW-007 did not have any observable effects on extinction training. Importantly, JHW-007 significantly attenuated METH-primed reinstatement, whereas trazodone enhanced it. These findings lend support to the candidacy of selective DA uptake blockers, such as JHW-007, as potential treatments for METH addiction, but not to the use of antidepressant medication as a single therapeutic approach for relapse prevention.
Collapse
Affiliation(s)
- Ashlea F Dassanayake
- Division of Psychology, School of Medicine, University of Tasmania, Private Bag 30, Hobart, TAS, 7001, Australia
| | - Juan J Canales
- Division of Psychology, School of Medicine, University of Tasmania, Private Bag 30, Hobart, TAS, 7001, Australia.
| |
Collapse
|
240
|
Charntikov S, Pittenger ST, Pudiak CM, Bevins RA. The effect of N-acetylcysteine or bupropion on methamphetamine self-administration and methamphetamine-triggered reinstatement of female rats. Neuropharmacology 2018; 135:487-495. [PMID: 29604294 DOI: 10.1016/j.neuropharm.2018.03.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 02/20/2018] [Accepted: 03/17/2018] [Indexed: 11/30/2022]
Abstract
N-acetylcysteine and bupropion are two promising candidate medications for treatment of substance use disorder. The effects of N-acetylcysteine or bupropion on methamphetamine self-administration of female rats are not well understood. To fill this gap, this study assessed the effects of N-acetylcysteine (0, 30, 60, or 120 mg/kg) and bupropion (0, 10, 30, and 60 mg/kg) on methamphetamine self-administration of female rats across the natural estrous cycle. Following a completed dose-response curve, responding for methamphetamine self-administration was extinguished and the effects of N-acetylcysteine or bupropion on methamphetamine-triggered reinstatement was evaluated in separate experiments. N-acetylcysteine did not decrease responding maintained by methamphetamine or methamphetamine-triggered reinstatement. Bupropion significantly decreased methamphetamine self-administration and methamphetamine-triggered reinstatement in female rats with highest dose (60 mg/kg) also significantly decreasing general chamber activity. In a companion experiment, testing the effect of bupropion on responding maintained by sucrose, we confirmed non-specificity of bupropion's effects as bupropion also decreased responding for sucrose. Considered together, our findings suggest that while N-acetylcysteine has considerable promise for treatment of cocaine dependence it may not generalize to other stimulants like methamphetamine. Furthermore, although bupropion has been shown to effectively decrease methamphetamine self-administration, and presently methamphetamine-triggered reinstatement, its locomotor and reward suppressing effects warrant further investigation including both sexes.
Collapse
Affiliation(s)
- Sergios Charntikov
- University of New Hampshire, Department of Psychology, 15 Academic Way, Durham, NH 03824, United States.
| | - Steven T Pittenger
- Yale University School of Medicine, Division of Molecular Psychiatry, New Haven, CT 06511, United States
| | - Cindy M Pudiak
- University of Nebraska-Lincoln, Department of Psychology, 238 Burnett Hall, Lincoln, NE 68588, United States
| | - Rick A Bevins
- University of Nebraska-Lincoln, Department of Psychology, 238 Burnett Hall, Lincoln, NE 68588, United States
| |
Collapse
|
241
|
Mood Fluctuation and Psychobiological Instability: The Same Core Functions Are Disrupted by Novel Psychoactive Substances and Established Recreational Drugs. Brain Sci 2018. [PMID: 29533974 PMCID: PMC5870361 DOI: 10.3390/brainsci8030043] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Many novel psychoactive substances (NPS) have entered the recreational drug scene in recent years, yet the problems they cause are similar to those found with established drugs. This article will debate the psychobiological effects of these newer and more traditional substances. It will show how they disrupt the same core psychobiological functions, so damaging well-being in similar ways. Every psychoactive drug causes mood states to fluctuate. Users feel better on-drug, then feel worse off-drug. The strength of these mood fluctuations is closely related to their addiction potential. Cyclical changes can occur with many other core psychobiological functions, such as information processing and psychomotor speed. Hence the list of drug-related impairments can include: homeostatic imbalance, HPA axis disruption, increased stress, altered sleep patterns, neurohormonal changes, modified brain rhythms, neurocognitive impairments, and greater psychiatric vulnerability. Similar patterns of deficit are found with older drugs such as cocaine, nicotine and cannabis, and newer substances such as 3,4-methylenedioxymethamphetamine (MDMA), mephedrone and spice. All psychoactive drugs damage human well-being through similar basic neuropsychobiological mechanisms.
Collapse
|
242
|
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.
Collapse
|
243
|
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.
Collapse
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
| |
Collapse
|
244
|
Do psychoactive drugs have a therapeutic role in compulsivity? Studies on schedule-induced polydipsia. Psychopharmacology (Berl) 2018; 235:419-432. [PMID: 29313138 DOI: 10.1007/s00213-017-4819-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 12/21/2017] [Indexed: 12/13/2022]
Abstract
RATIONALE Clinical studies have shown that some psychoactive recreational drugs have therapeutic applications in anxiety, depression, and schizophrenia. However, to date, there are few studies on the therapeutic potential efficacy of recreational drugs in compulsive neuropsychiatric disorders. OBJECTIVES We explored the therapeutic potential of different psychoactive and psychedelic drugs in a preclinical model of compulsive behavior. METHODS Outbred male Wistar rats were selected as either high (HD) or low (LD) drinkers according to their behavior in schedule-induced polydipsia (SIP). Subsequently, we assessed the effects of acute administration of scopolamine (0.125, 0.25, and 0.5 mg/kg), methamphetamine (0.25, 0.5, 1.25, and 2.5 mg/kg), ketamine (1.25, 2.5, 5, and 10 mg/kg), cannabidiol (1 and 3 mg/kg), WIN21255-2 (0.5, 075, and 1 mg/kg), and AM404 (0.25 and 0.5 mg/kg) on compulsive drinking in SIP. RESULTS Scopolamine reduced dose-dependent compulsive drinking in HD compared with LD rats in SIP. Methamphetamine induced a dose-dependent inverted U-curve effect in both groups, in which lower doses increased and higher doses reduced compulsive drinking in SIP. Ketamine, cannabidiol, WIN21255-2, and AM404 did not have any relevant effects in SIP. CONCLUSIONS These data provide new evidence that low doses of scopolamine and intermediate doses of methamphetamine might therapeutically reduce compulsive behaviors and suggest that there is not a direct participation of the endocannabinoid system in compulsive behavior on SIP. The research in the underlying neurochemical mechanisms of these psychoactive drugs might provide an additional insight on new therapeutic targets in compulsive neuropsychiatric disorders.
Collapse
|
245
|
Morris L, Stander J, Ebrahim W, Eksteen S, Meaden OA, Ras A, Wessels A. Effect of exercise versus cognitive behavioural therapy or no intervention on anxiety, depression, fitness and quality of life in adults with previous methamphetamine dependency: a systematic review. Addict Sci Clin Pract 2018; 13:4. [PMID: 29338767 PMCID: PMC5771022 DOI: 10.1186/s13722-018-0106-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 01/08/2018] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Methamphetamine (MA) is a highly addictive psychostimulant used by approximately 52 million people worldwide. Chronic MA abuse leads to detrimental physiological and neurological changes, as well as increases in anxiety and depression, and decreases in overall fitness and quality of life. Exercise has been reported to possibly reverse physiological and neurological damage caused by previous MA use, and to reduce anxiety and depression in this population. The aim of this systematic review was to identify, clinically appraise and synthesise the available evidence for the effectiveness of exercise, compared to cognitive behavioural therapy (CBT), standard care or no intervention, on decreasing anxiety and depression and improving fitness and quality of life in previous MA users. METHODS Seven computerised databases were searched from inception to May 2017, namely Scopus, Cochrane Library, PubMed/MEDLINE, PEDro, CINAHL, and ScienceDirect. Search terms included exercise, methamphetamine, fitness measures, depression, anxiety and quality of life. Randomised and non-randomised controlled- or clinical trials and pilot studies, published in English, were considered for inclusion. Methodological quality was critically appraised according to the PEDro scale. Heterogeneity across studies regarding control groups and assessment intervals rendered meta analyses inappropriate for this review and results were thus described narratively using text and tables. RESULTS Two hundred and fifty-one titles were identified following the initial search, and 14 potentially-relevant titles were selected and the abstracts reviewed. Three studies (two randomised controlled trials and one quasi-experimental pilot) were included, with an average PEDro score of 6.66. Exercise resulted in significantly lower depression and anxiety scores versus CBT (p = 0.001). Balance also significantly improved following exercise versus standard care (p < 0.001); as did vital capacity, hand-grip and one-leg stand with eyes closed. There were significant changes in all subdivisions of the Quality of Life Scale Questionnaire (p < 0.05), except psychology (p = 0.227). CONCLUSIONS Level II evidence suggests that exercise is effective in reducing anxiety and depression and improving fitness in previous MA users, and Level III-2 evidence suggests that exercise is beneficial for improving quality of life in this population. Overall recovery in previous MA dependents might be significantly enhanced by including exercise in the rehabilitation process. Further research is required to strengthen these conclusions and to inform policy and health systems effectively.
Collapse
Affiliation(s)
- Linzette Morris
- Division of Physiotherapy, Department of Health and Rehabilitation Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, PO Box 241, Cape Town, 8000 South Africa
| | - Jessica Stander
- Division of Physiotherapy, Department of Health and Rehabilitation Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, PO Box 241, Cape Town, 8000 South Africa
| | - Wardah Ebrahim
- Division of Physiotherapy, Department of Health and Rehabilitation Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, PO Box 241, Cape Town, 8000 South Africa
| | - Stephanie Eksteen
- Division of Physiotherapy, Department of Health and Rehabilitation Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, PO Box 241, Cape Town, 8000 South Africa
| | - Orissa Anna Meaden
- Division of Physiotherapy, Department of Health and Rehabilitation Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, PO Box 241, Cape Town, 8000 South Africa
| | - Ané Ras
- Division of Physiotherapy, Department of Health and Rehabilitation Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, PO Box 241, Cape Town, 8000 South Africa
| | - Annemarie Wessels
- Division of Physiotherapy, Department of Health and Rehabilitation Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, PO Box 241, Cape Town, 8000 South Africa
| |
Collapse
|
246
|
Ye T, Sun D, Dong G, Xu G, Wang L, Du J, Ren P, Yu S. The effect of methamphetamine abuse on dental caries and periodontal diseases in an Eastern China city. BMC Oral Health 2018; 18:8. [PMID: 29321070 PMCID: PMC5763656 DOI: 10.1186/s12903-017-0463-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 12/17/2017] [Indexed: 01/20/2023] Open
Abstract
Background Dental diseases are among the most frequently reported health problems in drug abusers. However, few studies have been conducted on oral health of methamphetamine (meth) abusers in China. The aim of the present study was to investigate the caries and periodontal health profile of former meth abusers in Eastern China. Methods A cross-sectional study was conducted on 162 former meth abusers in the male Zhoushan Compulsory Detoxification Center. A standardized questionnaire, which collected information about age, drug-use duration / pattern, oral hygiene habit and systemic diseases, was administered. Then, a dental examination was performed to investigate the severity of dental caries and periodontal diseases. In evaluating dental caries, the prevalence of dental caries, the scores of decayed teeth (DT), missing teeth (MT), filled teeth (FT), and decayed, missing, filled teeth (DMFT) were recorded. In evaluating periodontal diseases, community periodontal index (CPI), and the prevalence of gingival bleeding, dental calculus, periodontal pocket and loose teeth, were recorded. Additionally, the non-parametric test was adopted to analyze the potential risk factors via SPSS. Results All the participants abused meth by inhalation. The mean scores of DT, MT, FT and DMFT in the former meth users were 2.72 ± 2.78, 3.07 ± 3.94, 0.33 ± 1.03 and 6.13 ± 5.20 respectively. The prevalence of gingival bleeding, dental calculus, periodontal pocket and loose teeth was 97.53%, 95.68%, 51.23% and 9.26% respectively. The DT, DMFT and CPI scores in those who had abused meth for longer than 4 years were significantly higher than those who abused for less than 4 years (P = 0.039, 0.045, P < 0.001, respectively). The DT score in those who brushed their teeth more than twice a day were significantly lower than those who brushed less (P = 0.018). Conclusions The status of caries and periodontal diseases among former male meth users in Eastern China was poor. Prolonged drug abuse and lower frequency of tooth brushing may be the risk factors of their poor status of caries and periodontal diseases. Electronic supplementary material The online version of this article (10.1186/s12903-017-0463-5) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Tao Ye
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shanxi Key Laboratory of Oral Diseases, School of Stomatology, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, People's Republic of China
| | - Dongliang Sun
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shanxi Key Laboratory of Oral Diseases, School of Stomatology, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, People's Republic of China
| | - Guangying Dong
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shanxi Key Laboratory of Oral Diseases, School of Stomatology, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, People's Republic of China
| | - Guangjie Xu
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shanxi Key Laboratory of Oral Diseases, School of Stomatology, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, People's Republic of China.,Department of Stomatology, Chinese PLA 413 Hospital, Zhoushan, Zhejiang, 316000, People's Republic of China
| | - Ligang Wang
- Department of Stomatology, Chinese PLA 413 Hospital, Zhoushan, Zhejiang, 316000, People's Republic of China
| | - Jinjin Du
- Department of Stomatology, Chinese PLA 413 Hospital, Zhoushan, Zhejiang, 316000, People's Republic of China
| | - Pengcheng Ren
- Tangdu Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, People's Republic of China.
| | - Shibin Yu
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shanxi Key Laboratory of Oral Diseases, School of Stomatology, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, People's Republic of China.
| |
Collapse
|
247
|
Wearne TA, Cornish JL. A Comparison of Methamphetamine-Induced Psychosis and Schizophrenia: A Review of Positive, Negative, and Cognitive Symptomatology. Front Psychiatry 2018; 9:491. [PMID: 30364176 PMCID: PMC6191498 DOI: 10.3389/fpsyt.2018.00491] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 09/19/2018] [Indexed: 01/12/2023] Open
Abstract
Methamphetamine is a potent psychostimulant that can induce psychosis among recreational and chronic users, with some users developing a persistent psychotic syndrome that shows similarities to schizophrenia. This review provides a comprehensive critique of research that has directly compared schizophrenia with acute and chronic METH psychosis, with particular focus on psychiatric and neurocognitive symptomatology. We conclude that while there is considerable overlap in the behavioral and cognitive symptoms between METH psychosis and schizophrenia, there appears to be some evidence that suggests there are divergent aspects to each condition, particularly with acute METH psychosis. Schizophrenia appears to be associated with pronounced thought disorder, negative symptoms more generally and cognitive deficits mediated by the parietal cortex, such as difficulties with selective visual attention, while visual and tactile hallucinations appear to be more prevalent in acute METH-induced psychosis. As such, acute METH psychosis may represent a distinct psychotic disorder to schizophrenia and could be clinically distinguished from a primary psychotic disorder based on the aforementioned behavioral and cognitive sequelae. Preliminary evidence, on the other hand, suggests that chronic METH psychosis may be clinically similar to that of primary psychotic disorders, particularly with respect to positive and cognitive symptomatology, although negative symptoms appear to be more pronounced in schizophrenia. Limitations of the literature and avenues for future research are also discussed.
Collapse
Affiliation(s)
- Travis A Wearne
- Department of Psychology, Macquarie University, Sydney, NSW, Australia.,School of Psychology, University of New South Wales, Sydney, NSW, Australia
| | | |
Collapse
|
248
|
Simmler LD, Liechti ME. Pharmacology of MDMA- and Amphetamine-Like New Psychoactive Substances. Handb Exp Pharmacol 2018; 252:143-164. [PMID: 29633178 DOI: 10.1007/164_2018_113] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Abstract
New psychoactive substances (NPS) with amphetamine-, aminoindan-, and benzofuran basic chemical structures have recently emerged for recreational drug use. Detailed information about their psychotropic effects and health risks is often limited. At the same time, it emerged that the pharmacological profiles of these NPS resemble those of amphetamine or 3,4-methylenedioxymethamphetamine (MDMA). Amphetamine-like NPS induce psychostimulation and euphoria mediated predominantly by norepinephrine (NE) and dopamine (DA) transporter (NET and DAT) inhibition and transporter-mediated release of NE and DA, thus showing a more catecholamine-selective profile. MDMA-like NPS frequently induce well-being, empathy, and prosocial effects and have only moderate psychostimulant properties. These MDMA-like substances primarily act by inhibiting the serotonin (5-HT) transporter (SERT) and NET, also inducing 5-HT and NE release. Monoamine receptor interactions vary considerably among amphetamine- and MDMA-like NPS. Clinically, amphetamine- and MDMA-like NPS can induce sympathomimetic toxicity. The aim of this chapter is to review the state of knowledge regarding these substances with a focus on the description of the in vitro pharmacology of selected amphetamine- and MDMA-like NPS. In addition, it is aimed to provide links between pharmacological profiles and in vivo effects and toxicity, which leads to the conclusion that abuse liability for amphetamine-like NPS may be higher than for MDMA-like NPS, but that the risk for developing the life-threatening serotonin syndrome may be increased for MDMA-like NPS.
Collapse
Affiliation(s)
- Linda D Simmler
- Department of Basic Neurosciences, University of Geneva, Geneva, Switzerland.
| | - Matthias E Liechti
- Division of Clinical Pharmacology and Toxicology, University Hospital Basel, Basel, Switzerland.
| |
Collapse
|
249
|
Zhang Z, He L, Huang S, Fan L, Li Y, Li P, Zhang J, Liu J, Yang R. Alteration of Brain Structure With Long-Term Abstinence of Methamphetamine by Voxel-Based Morphometry. Front Psychiatry 2018; 9:722. [PMID: 30618890 PMCID: PMC6306455 DOI: 10.3389/fpsyt.2018.00722] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 12/07/2018] [Indexed: 12/12/2022] Open
Abstract
Background: A large portion of previous studies that have demonstrated brain gray matter reduction in individuals who use methamphetamine (MA) have focused on short-term abstinence, but few studies have focused on the effects of long-term abstinence of methamphetamine on brain structures. Materials and Methods: Our study includes 40 healthy controls and 44 abstinent methamphetamine-dependent (AMD) subjects who have abstained for at least 14 months. For every AMD subject, the age when they first used MA, the total time of MA use, the frequency of MA use in the last month before abstinence, the duration of abstinence and the craving score were recorded. Here we used magnetic resonance imaging (MRI) to measure the gray matter volume (GMV) of each subject with voxel-based morphometry method. Two-sample t-test (AlphaSim corrected) was performed to obtain brain regions with different gray matter volume (GMV) between groups. In addition, partial correlation coefficients adjusted for age, years of education, smoking, and drinking were calculated in the AMD group to assess associations between the mean GMV values in significant clusters and variables of MA use and abstinence. Results: Compared with the healthy control group, AMD group showed increased gray matter volumes in the bilateral cerebellum and decreased volumes in the right calcarine and right cuneus. Moreover, GMV of left cerebellum are positively correlated with the duration of abstinence in the AMD group (p = 0.040, r = 0.626). Conclusions: The present study showed that the gray matter volume in some brain regions is abnormal in the AMD subjects with long-term abstinence. Changes in gray matter volume of visual and cognitive function regions suggested that these areas play important roles in the progress of MA addiction and abstinence. In addition, positive correlation between GMV of the left cerebellum crus and duration of abstinence suggested that prolonged abstinence is beneficial to cognitive function recovery.
Collapse
Affiliation(s)
- Zhixue Zhang
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, China.,Department of Radiology, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Lei He
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Shucai Huang
- Department of Psychiatry, The Fourth People's Hospital of Wuhu, Wuhu, China
| | - Lidan Fan
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yining Li
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Ping Li
- Department of Radiology, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Jun Zhang
- Hunan Judicial Police Academy, Changsha, China
| | - Jun Liu
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Ru Yang
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, China
| |
Collapse
|
250
|
Strand MC, Mørland J, Slørdal L, Riedel B, Innerdal C, Aamo T, Mathisrud G, Vindenes V. Conversion factors for assessment of driving impairment after exposure to multiple benzodiazepines/z-hypnotics or opioids. Forensic Sci Int 2017; 281:29-36. [PMID: 29101905 DOI: 10.1016/j.forsciint.2017.10.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 09/06/2017] [Accepted: 10/11/2017] [Indexed: 11/18/2022]
Abstract
AIMS Norway has introduced legal concentration limits in blood for 28 non-alcohol drugs in driving under the influence cases. As of 2016 this legislation also regulates the assessment of combined effects of multiple benzodiazepines and opioids. We herein describe the employed methodology for the equivalence tables for concentrations of benzodiazepines/z-hypnotics and opioids implemented in the Norwegian Road Traffic Act. METHODS Legislative limits corresponding to impairment at blood alcohol concentrations (BAC) of 0.02%, 0.05% and 0.12% were established for 15 different benzodiazepines and opioids. This was based on a concept of a linear relationship between blood drug concentration and impairment in drug naïve users. Concentration ratios between these drugs were used to establish conversion factors and calculate net impairment using diazepam and morphine equivalents. RESULTS Conversion factors were established for 14 benzodiazepines/z-hypnotics (alprazolam, bromazepam, clobazam, clonazepam, etizolam, flunitrazepam, lorazepam, nitrazepam, nordiazepam, oxazepam, phenazepam, temazepam, zolpidem and zopiclone) and two opioids (methadone and oxycodone). CONCLUSIONS Conversion factors to calculate diazepam and morphine equivalents for benzodiazepines/z-hypnotics and selected opioids, respectively, have been operative in the Norwegian Road Traffic Act as of February 2016. Calculated equivalents can be applied by the courts to meter out sanctions.
Collapse
Affiliation(s)
| | - Jørg Mørland
- Norwegian Institute of Public Health, Division of Health Data and Digitalization, Oslo, Norway.
| | - Lars Slørdal
- Department of Laboratory Medicine, Children's and Women's Health, Norwegian University of Science and Technology, Trondheim, Norway; Department of Clinical Pharmacology, St. Olav University Hospital, Trondheim, Norway.
| | - Bettina Riedel
- University of Bergen, Faculty of Medicine and Dentistry, Department of Clinical Science, Bergen, Norway; Haukeland University Hospital, Laboratory of Clinical Biochemistry, Bergen, Norway.
| | | | - Trond Aamo
- Department of Clinical Pharmacology, St. Olav University Hospital, Trondheim, Norway.
| | - Grete Mathisrud
- Norwegian Ministry of Transport and Communications, Department of Public Roads and Traffic Safety, Oslo, Norway.
| | - Vigdis Vindenes
- Oslo University Hospital, Department of Forensic Medicine, Oslo, Norway; Center of Drug and Addiction Research, Faculty of Medicine, University of Oslo, Norway.
| |
Collapse
|