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Oliva HNP, Prudente TP, Nunes EJ, Cosgrove KP, Radhakrishnan R, Potenza MN, Angarita GA. Substance use and spine density: a systematic review and meta-analysis of preclinical studies. Mol Psychiatry 2024:10.1038/s41380-024-02519-3. [PMID: 38561468 DOI: 10.1038/s41380-024-02519-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 02/28/2024] [Accepted: 03/04/2024] [Indexed: 04/04/2024]
Abstract
The elucidation of synaptic density changes provides valuable insights into the underlying brain mechanisms of substance use. In preclinical studies, synaptic density markers, like spine density, are altered by substances of abuse (e.g., alcohol, amphetamine, cannabis, cocaine, opioids, nicotine). These changes could be linked to phenomena including behavioral sensitization and drug self-administration in rodents. However, studies have produced heterogeneous results for spine density across substances and brain regions. Identifying patterns will inform translational studies given tools that now exist to measure in vivo synaptic density in humans. We performed a meta-analysis of preclinical studies to identify consistent findings across studies. PubMed, ScienceDirect, Scopus, and EBSCO were searched between September 2022 and September 2023, based on a protocol (PROSPERO: CRD42022354006). We screened 6083 publications and included 70 for meta-analysis. The meta-analysis revealed drug-specific patterns in spine density changes. Hippocampal spine density increased after amphetamine. Amphetamine, cocaine, and nicotine increased spine density in the nucleus accumbens. Alcohol and amphetamine increased, and cannabis reduced, spine density in the prefrontal cortex. There was no convergence of findings for morphine's effects. The effects of cocaine on the prefrontal cortex presented contrasting results compared to human studies, warranting further investigation. Publication bias was small for alcohol or morphine and substantial for the other substances. Heterogeneity was moderate-to-high across all substances. Nonetheless, these findings inform current translational efforts examining spine density in humans with substance use disorders.
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Affiliation(s)
- Henrique Nunes Pereira Oliva
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
- Clinical Neuroscience Research Unit, Connecticut Mental Health Center, New Haven, CT, USA
| | - Tiago Paiva Prudente
- Faculdade de Medicina, Universidade Federal de Goiás (UFG), Goiânia, Goiás, Brazil
| | - Eric J Nunes
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
- Yale Tobacco Center of Regulatory Science, Yale University School of Medicine, New Haven, CT, USA
| | - Kelly P Cosgrove
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Rajiv Radhakrishnan
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Marc N Potenza
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
- Clinical Neuroscience Research Unit, Connecticut Mental Health Center, New Haven, CT, USA
- Child Study Center, Yale University School of Medicine, New Haven, CT, USA
- Department of Neuroscience, Yale University, New Haven, CT, USA
- Connecticut Council on Problem Gambling, Wethersfield, CT, USA
- Wu Tsai Institute, Yale University, New Haven, CT, USA
| | - Gustavo A Angarita
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA.
- Clinical Neuroscience Research Unit, Connecticut Mental Health Center, New Haven, CT, USA.
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2
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Tao X, Zhang J, Meng Q, Chu J, Zhao R, Liu Y, Dong Y, Xu H, Tian T, Cui J, Zhang L, Chu M. The potential health effects associated with electronic-cigarette. ENVIRONMENTAL RESEARCH 2024; 245:118056. [PMID: 38157958 DOI: 10.1016/j.envres.2023.118056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 12/17/2023] [Accepted: 12/25/2023] [Indexed: 01/03/2024]
Abstract
A good old gateway theory that electronic-cigarettes (e-cigarettes) are widely recognized as safer tobacco substitutes. In actuality, demographics also show that vaping cannibalizes smoking, the best explanation of the data is the "common liability". However, the utilization of e-cigarette products remains a controversial topic at present. Currently, there has been a widespread and substantial growth in e-cigarette use worldwide owing to their endless new flavors and customizable characteristics. Furthermore, e-cigarette has grown widespread among smokers as well as non-smokers, including adolescents and young adults. And some studies have shown that e-cigarette users are at greater risk to start using combustible cigarettes while e-cigarettes use was also observed the potential benefits to people who want to quit smoking or not. Although it is true that e-cigarettes generally contain fewer toxic substances than combustible cigarettes, this does not mean that the chemical composition in e-cigarettes aerosols poses absolutely no risks. While concerns about toxic substances in e-cigarettes and their widespread use in the population are reasonable, it is also crucial to consider that e-cigarettes have been associated with the potential for promoting smoking cessation and the clinically relevant improvements in users with smoking-related pathologies. Meanwhile, there is still short of understanding of the health impacts associated with e-cigarette use. Therefore, in this review, we discussed the health impacts of e-cigarette exposure on oral, nasal, pulmonary, cardiovascular systems and brain. We aspire for this review to change people's previous perceptions of e-cigarettes and provide them with a more balanced perspective. Additionally, we suggest appropriate adjustments on regulation and policy for e-cigarette to gain greater public health benefits.
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Affiliation(s)
- Xiaobo Tao
- Department of Epidemiology, School of Public Health, Nantong University, Nantong, Jiangsu, China
| | - Jiale Zhang
- The Second People's Hospital of Nantong, Nantong, Jiangsu, China
| | - Qianyao Meng
- Department of Global Health and Population, School of Public Health, Harvard University, Boston, USA
| | - Junfeng Chu
- Department of Oncology, Jiangdu People's Hospital of Yangzhou, Yangzhou, Jiangsu, China
| | - Rongrong Zhao
- Department of Oncology, Jiangdu People's Hospital of Yangzhou, Yangzhou, Jiangsu, China
| | - Yiran Liu
- Department of Epidemiology, School of Public Health, Nantong University, Nantong, Jiangsu, China
| | - Yang Dong
- Department of Epidemiology, School of Public Health, Nantong University, Nantong, Jiangsu, China
| | - Huiwen Xu
- Department of Epidemiology, School of Public Health, Nantong University, Nantong, Jiangsu, China
| | - Tian Tian
- Department of Epidemiology, School of Public Health, Nantong University, Nantong, Jiangsu, China
| | - Jiahua Cui
- Department of Epidemiology, School of Public Health, Nantong University, Nantong, Jiangsu, China
| | - Lei Zhang
- Department of Epidemiology, School of Public Health, Nantong University, Nantong, Jiangsu, China.
| | - Minjie Chu
- Department of Epidemiology, School of Public Health, Nantong University, Nantong, Jiangsu, China.
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3
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Lee JE, Walton D, O’Connor CP, Wammes M, Burton JP, Osuch EA. Drugs, Guts, Brains, but Not Rock and Roll: The Need to Consider the Role of Gut Microbiota in Contemporary Mental Health and Wellness of Emerging Adults. Int J Mol Sci 2022; 23:ijms23126643. [PMID: 35743087 PMCID: PMC9223871 DOI: 10.3390/ijms23126643] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 06/02/2022] [Accepted: 06/04/2022] [Indexed: 02/01/2023] Open
Abstract
Emerging adulthood (ages 18–25) is a critical period for neurobiological development and the maturation of the hypothalamic–pituitary–adrenal axis. Recent findings also suggest that a natural perturbation of the gut microbiota (GM), combined with other factors, may create a unique vulnerability during this period of life. The GM of emerging adults is thought to be simpler, less diverse, and more unstable than either younger or older people. We postulate that this plasticity in the GM suggests a role in the rising mental health issues seen in westernized societies today via the gut–brain–microbiota axis. Studies have paid particular attention to the diversity of the microbiota, the specific function and abundance of bacteria, and the production of metabolites. In this narrative review, we focus specifically on diet, physical activity/exercise, substance use, and sleep in the context of the emerging adult. We propose that this is a crucial period for establishing a stable and more resilient microbiome for optimal health into adulthood. Recommendations will be made about future research into possible behavioral adjustments that may be beneficial to endorse during this critical period to reduce the probability of a “dysbiotic” GM and the emergence and severity of mental health concerns.
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Affiliation(s)
- Ju Eun Lee
- London Health Science Centre—Victoria Hospital, Department of Psychiatry, B8-102, London, ON N6A 5W9, Canada;
| | - David Walton
- Rm. EC1443 School of Physical Therapy, 1201 Western Rd., London, ON N6G 1H1, Canada;
| | - Colleen P. O’Connor
- School of Food and Nutritional Sciences, Brescia University College, London, ON N6G 1H2, Canada;
| | - Michael Wammes
- London Health Sciences Centre, Department of Psychiatry, Lawson Health Research Institute, Schulich School of Medicine and Dentistry, Western University, 860 Richmond Street, FEMAP, London, ON N6A 3H8, Canada;
| | - Jeremy P. Burton
- Departments of Surgery, Microbiology and Immunology, Lawson Health Research Institute, Western University, London, ON N6A 3K7, Canada;
| | - Elizabeth A. Osuch
- London Health Sciences Centre, Department of Psychiatry, Lawson Health Research Institute, Schulich School of Medicine and Dentistry, Western University, 860 Richmond Street, FEMAP, London, ON N6A 3H8, Canada;
- Correspondence: ; Tel.: +519-646-6000 (ext. 65188)
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4
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The Role of CaMKII and ERK Signaling in Addiction. Int J Mol Sci 2021; 22:ijms22063189. [PMID: 33804804 PMCID: PMC8004038 DOI: 10.3390/ijms22063189] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/17/2021] [Accepted: 03/19/2021] [Indexed: 12/12/2022] Open
Abstract
Nicotine is the predominant addictive compound of tobacco and causes the acquisition of dependence through its interactions with nicotinic acetylcholine receptors and various neurotransmitter releases in the central nervous system. The Ca2+/calmodulin-dependent protein kinase II (CaMKII) and extracellular signal-regulated kinase (ERK) play a pivotal role in synaptic plasticity in the hippocampus. CaMKII is involved in long-term potentiation induction, which underlies the consolidation of learning and memory; however, the roles of CaMKII in nicotine and other psychostimulant-induced addiction still require further investigation. This article reviews the molecular mechanisms and crucial roles of CaMKII and ERK in nicotine and other stimulant drug-induced addiction. We also discuss dopamine (DA) receptor signaling involved in nicotine-induced addiction in the brain reward circuitry. In the last section, we introduce the association of polyunsaturated fatty acids and cellular chaperones of fatty acid-binding protein 3 in the context of nicotine-induced addiction in the mouse nucleus accumbens and provide a novel target for the treatment of drug abuse affecting dopaminergic systems.
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Jia W, Wilar G, Kawahata I, Cheng A, Fukunaga K. Impaired Acquisition of Nicotine-Induced Conditioned Place Preference in Fatty Acid-Binding Protein 3 Null Mice. Mol Neurobiol 2021; 58:2030-2045. [PMID: 33411237 DOI: 10.1007/s12035-020-02228-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 11/24/2020] [Indexed: 10/22/2022]
Abstract
Nicotine causes psychological dependence through its interactions with nicotinic acetylcholine receptors in the brain. We previously demonstrated that fatty acid-binding protein 3 (FABP3) colocalizes with dopamine D2 receptors (D2Rs) in the dorsal striatum, and FABP3 deficiency leads to impaired D2R function. Moreover, D2R null mice do not exhibit increased nicotine-induced conditioned place preference (CPP) following chronic nicotine administration. To investigate the role of FABP3 in nicotine-induced CPP, FABP3 knockout (FABP3-/-) mice were evaluated using a CPP apparatus following consecutive nicotine administration (0.5 mg/kg) for 14 days. Importantly, nicotine-induced CPP was suppressed in the conditioning, withdrawal, and relapse phases in FABP3-/- mice. To resolve the mechanisms underlying impaired nicotine-induced CPP in these mice, we assessed c-Fos expression and Ca2+/calmodulin-dependent protein kinase II (CaMKII) and extracellular signal-regulated kinase (ERK) signaling in both dopamine D1 receptor (D1R)- and D2R-positive neurons in the nucleus accumbens (NAc). Notably, 64% of dopamine receptor-positive neurons in the mouse NAc expressed both D1R and D2R. Impaired nicotine-induced CPP was correlated with lack of responsiveness of both CaMKII and ERK phosphorylation. The number of D2R-positive neurons was increased in FABP3-/- mice, while the number of D1R-positive neurons and the responsiveness of c-Fos expression to nicotine were decreased. The aberrant c-Fos expression was closely correlated with CaMKII but not ERK phosphorylation levels in the NAc of FABP3-/- mice. Taken together, these results indicate that impaired D2R signaling due to lack of FABP3 may affect D1R and c-Fos signaling and underlie nicotine-induced CPP behaviors.
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Affiliation(s)
- Wenbin Jia
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aramaki-Aoba, Aoba-ku, Sendai, 980-0845, Japan
| | - Gofarana Wilar
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aramaki-Aoba, Aoba-ku, Sendai, 980-0845, Japan.,Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, JL. Raya Bandung-Sumedang KM 20.5 Jatinangor, Sumedang, Jawa Barat, 45363, Indonesia
| | - Ichiro Kawahata
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aramaki-Aoba, Aoba-ku, Sendai, 980-0845, Japan
| | - An Cheng
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aramaki-Aoba, Aoba-ku, Sendai, 980-0845, Japan
| | - Kohji Fukunaga
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aramaki-Aoba, Aoba-ku, Sendai, 980-0845, Japan. .,, Sendai, Japan.
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6
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Leslie FM. Unique, long-term effects of nicotine on adolescent brain. Pharmacol Biochem Behav 2020; 197:173010. [PMID: 32738256 DOI: 10.1016/j.pbb.2020.173010] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/23/2020] [Accepted: 07/28/2020] [Indexed: 01/20/2023]
Abstract
Adolescence is a time of major plasticity of brain systems that regulate motivated behavior and cognition, and is also the age of peak onset of nicotine use. Although there has been a decline in teen use of cigarettes in recent years, there has been a huge increase in nicotine vaping. It is therefore critically important to understand the impact of nicotine on this critical phase of brain development. Animal studies have shown that nicotine has unique effects on adolescent brain. The goal of this review is therefore to systematically evaluate age- and sex-differences in the effects of nicotine on brain and behavior. Both acute and chronic effects of nicotine on brain biochemistry and behavior, particularly drug reward, aversion, cognition and emotion, are evaluated. Gaps in our current knowledge that need to be addressed are also highlighted. This review compares and integrates human and animals findings. Although there can be no experimental studies in humans to confirm similar behavioral effects of teen nicotine exposure, an emerging observational literature suggests similarities across species. Given the substantial evidence for long-term negative impact of adolescent nicotine exposure on brain and behavior, further longitudinal assessment of health outcomes in teen and young adult e-cigarette users is warranted.
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Affiliation(s)
- Frances M Leslie
- University of California, Irvine, Department of Pharmaceutical Sciences, 367 Med Surge II, Irvine, CA 92697, United States of America.
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7
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Crummy EA, O'Neal TJ, Baskin BM, Ferguson SM. One Is Not Enough: Understanding and Modeling Polysubstance Use. Front Neurosci 2020; 14:569. [PMID: 32612502 PMCID: PMC7309369 DOI: 10.3389/fnins.2020.00569] [Citation(s) in RCA: 127] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 05/08/2020] [Indexed: 12/19/2022] Open
Abstract
Substance use disorder (SUD) is a chronic, relapsing disease with a highly multifaceted pathology that includes (but is not limited to) sensitivity to drug-associated cues, negative affect, and motivation to maintain drug consumption. SUDs are highly prevalent, with 35 million people meeting criteria for SUD. While drug use and addiction are highly studied, most investigations of SUDs examine drug use in isolation, rather than in the more prevalent context of comorbid substance histories. Indeed, 11.3% of individuals diagnosed with a SUD have concurrent alcohol and illicit drug use disorders. Furthermore, having a SUD with one substance increases susceptibility to developing dependence on additional substances. For example, the increased risk of developing heroin dependence is twofold for alcohol misusers, threefold for cannabis users, 15-fold for cocaine users, and 40-fold for prescription misusers. Given the prevalence and risk associated with polysubstance use and current public health crises, examining these disorders through the lens of co-use is essential for translatability and improved treatment efficacy. The escalating economic and social costs and continued rise in drug use has spurred interest in developing preclinical models that effectively model this phenomenon. Here, we review the current state of the field in understanding the behavioral and neural circuitry in the context of co-use with common pairings of alcohol, nicotine, cannabis, and other addictive substances. Moreover, we outline key considerations when developing polysubstance models, including challenges to developing preclinical models to provide insights and improve treatment outcomes.
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Affiliation(s)
- Elizabeth A Crummy
- Graduate Program in Neuroscience, University of Washington, Seattle, WA, United States.,Center for Neurobiology of Addiction, Pain, and Emotion, University of Washington, Seattle, WA, United States.,Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, United States.,Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA, United States
| | - Timothy J O'Neal
- Graduate Program in Neuroscience, University of Washington, Seattle, WA, United States.,Center for Neurobiology of Addiction, Pain, and Emotion, University of Washington, Seattle, WA, United States.,Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, United States.,Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA, United States
| | - Britahny M Baskin
- Graduate Program in Neuroscience, University of Washington, Seattle, WA, United States.,Center for Neurobiology of Addiction, Pain, and Emotion, University of Washington, Seattle, WA, United States.,Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, United States.,Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA, United States
| | - Susan M Ferguson
- Center for Neurobiology of Addiction, Pain, and Emotion, University of Washington, Seattle, WA, United States.,Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, United States.,Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA, United States.,Alcohol and Drug Abuse Institute, University of Washington, Seattle, WA, United States
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8
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Ruszkiewicz JA, Zhang Z, Gonçalves FM, Tizabi Y, Zelikoff JT, Aschner M. Neurotoxicity of e-cigarettes. Food Chem Toxicol 2020; 138:111245. [PMID: 32145355 PMCID: PMC7089837 DOI: 10.1016/j.fct.2020.111245] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 02/29/2020] [Accepted: 03/03/2020] [Indexed: 02/07/2023]
Abstract
It appears that electronic cigarettes (EC) are a less harmful alternative to conventional cigarette (CC) smoking, as they generate substantially lower levels of harmful carcinogens and other toxic compounds. Thus, switching from CC to EC may be beneficial for smokers. However, recent accounts of EC- or vaping-associated lung injury (EVALI) has raised concerns regarding their adverse health effects. Additionally, the increasing popularity of EC among vulnerable populations, such as adolescents and pregnant women, calls for further EC safety evaluation. In this state-of-the-art review, we provide an update on recent findings regarding the neurological effects induced by EC exposure. Moreover, we discuss possible neurotoxic effects of nicotine and numerous other chemicals which are inherent both to e-liquids and EC aerosols. We conclude that in recognizing pertinent issues associated with EC usage, both government and scientific researchers must address this public health issue with utmost urgency.
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Affiliation(s)
- Joanna A Ruszkiewicz
- Molecular Toxicology Group, Department of Biology, University of Konstanz, Konstanz, Germany
| | - Ziyan Zhang
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Filipe Marques Gonçalves
- Biochemistry Graduate Program, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Yousef Tizabi
- Department of Pharmacology, Howard University College of Medicine, Washington DC, United States
| | - Judith T Zelikoff
- Department of Environmental Medicine, New York University School of Medicine, Manhattan, NY, United States
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, United States.
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9
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Salmanzadeh H, Ahmadi-Soleimani SM, Pachenari N, Azadi M, Halliwell RF, Rubino T, Azizi H. Adolescent drug exposure: A review of evidence for the development of persistent changes in brain function. Brain Res Bull 2020; 156:105-117. [PMID: 31926303 DOI: 10.1016/j.brainresbull.2020.01.007] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 12/28/2019] [Accepted: 01/06/2020] [Indexed: 12/24/2022]
Abstract
Over the past decade, many studies have indicated that adolescence is a critical period of brain development and maturation. The refinement and maturation of the central nervous system over this prolonged period, however, makes the adolescent brain highly susceptible to perturbations from acute and chronic drug exposure. Here we review the preclinical literature addressing the long-term consequences of adolescent exposure to common recreational drugs and drugs-of-abuse. These studies on adolescent exposure to alcohol, nicotine, opioids, cannabinoids and psychostimulant drugs, such as cocaine and amphetamine, reveal a variety of long-lasting behavioral and neurobiological consequences. These agents can affect development of the prefrontal cortex and mesolimbic dopamine pathways and modify the reward systems, socio-emotional processing and cognition. Other consequences include disruption in working memory, anxiety disorders and an increased risk of subsequent drug abuse in adult life. Although preventive and control policies are a valuable approach to reduce the detrimental effects of drugs-of-abuse on the adolescent brain, a more profound understanding of their neurobiological impact can lead to improved strategies for the treatment and attenuation of the detrimental neuropsychiatric sequelae.
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Affiliation(s)
- Hamed Salmanzadeh
- Department of Physiology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran; TJ Long School of Pharmacy & Health Sciences, University of the Pacific, Stockton, CA, USA
| | | | - Narges Pachenari
- Department of Physiology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Maryam Azadi
- Department of Physiology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Robert F Halliwell
- TJ Long School of Pharmacy & Health Sciences, University of the Pacific, Stockton, CA, USA
| | - Tiziana Rubino
- Department of Biotechnology and Life Sciences, University of Insubria, Busto Arsizio, VA, Italy
| | - Hossein Azizi
- Department of Physiology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
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10
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al'Absi M, Lemieux A, Hodges JS, Allen S. Circulating orexin changes during withdrawal are associated with nicotine craving and risk for smoking relapse. Addict Biol 2019; 24:743-753. [PMID: 30117237 DOI: 10.1111/adb.12643] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 05/11/2018] [Accepted: 05/17/2018] [Indexed: 01/09/2023]
Abstract
We examined the extent to which orexin measured during smoking and the early phase of abstinence was related to craving, withdrawal, stress hormones, and risk for smoking relapse in men and women. Considering its role in modulating nicotine-related reward, we predicted that a reduction in circulating orexin during withdrawal would be associated with increased craving and risk for smoking relapse. Two hundred and eighty five participants provided biological samples and self-report information to identify predictors of smoking relapse. All participants attended two laboratory sessions, which were before and after a period of required abstinence from smoking. After quitting, participants also attended four weekly sessions to track smoking relapse. Only smokers who relapsed within the follow-up period exhibited reduced orexin levels during the initial withdrawal period; ACTH, but not craving nor cortisol, increased across the abstinence period for successful abstainers but not for relapsers. Sex differences in orexin and craving or withdrawal associations also emerged. Adding sex, HPA hormones, and self-reported measures of craving and withdrawal as potential mediators had minimal effects on the above abstinence and orexin effects. These results provide the first evidence that circulating orexin may be a useful marker of risk for relapse; and sex, adrenal hormones, and self-reported craving and withdrawal were not mediators of this effect. The results point to a promising pathway to investigate objective biological markers for craving and smoking relapse and highlight the complexity of the neurobiology of relapse.
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Affiliation(s)
- Mustafa al'Absi
- Department of Family Medicine and Biobehavioral HealthUniversity of Minnesota Medical School Duluth MN USA
- PsychiatryUniversity of Minnesota, Twin Cities Minneapolis MN USA
| | - Andrine Lemieux
- Department of Family Medicine and Biobehavioral HealthUniversity of Minnesota Medical School Duluth MN USA
| | - James S. Hodges
- Division of BiostatisticsUniversity of Minnesota, Twin Cities Minneapolis MN USA
| | - Sharon Allen
- Department of Family Medicine and Community HealthUniversity of Minnesota, Twin Cities Minneapolis MN USA
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11
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Sanchez V, Bakhti-Suroosh A, Chen A, Brunzell DH, Erisir A, Lynch WJ. Exercise during abstinence normalizes ultrastructural synaptic plasticity associated with nicotine-seeking following extended access self-administration. Eur J Neurosci 2019; 50:2707-2721. [PMID: 30888721 DOI: 10.1111/ejn.14408] [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: 01/11/2019] [Revised: 02/28/2019] [Accepted: 03/08/2019] [Indexed: 12/16/2022]
Abstract
Nicotine-craving progressively increases, or incubates, over abstinence following extended access self-administration. While not yet examined for nicotine, the incubation of cocaine-seeking is accompanied by changes in synaptic plasticity in the nucleus accumbens. Here, we determined whether such changes also accompany enhanced nicotine-seeking following extended access self-administration and abstinence, and whether exercise, a potential intervention for nicotine addiction, may exert its efficacy by normalizing these changes. Given that in humans, tobacco/nicotine use begins during adolescence, we used an adolescent-onset model. Nicotine-seeking was assessed in male rats following extended access nicotine or saline self-administration (23-hr/day, 10 days) and 10 days of abstinence, conditions known to induce the incubation of nicotine-seeking, using a within-session extinction/cue-induced reinstatement procedure. A subset of rats had 2-hr/day access to a running wheel during abstinence. Ultrastructural alterations of synapses in the nucleus accumbens core and shell were examined using electron microscopy. Nicotine-seeking was elevated following extended access self-administration and abstinence (in sedentary group), and levels of seeking were associated with an increase in the density of asymmetric (excitatory) and symmetric (inhibitory) synapses onto dendrites in the core, as well as longer asymmetric synapses onto spines, a marker of synaptic potentiation, in both the core and shell. Exercise normalized each of these changes; however, in the shell, exercise and nicotine similarly increased the synapse length. Together, these findings indicate an association between nicotine-seeking and synaptic plasticity in the nucleus accumbens, particularly the core, and indicate that the efficacy of exercise to reduce nicotine-seeking may be mediated by reversing these adaptations.
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Affiliation(s)
- Victoria Sanchez
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, Virginia
| | - Anousheh Bakhti-Suroosh
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, Virginia
| | - Andrew Chen
- Department of Psychology, University of Virginia, Charlottesville, Virginia
| | - Darlene H Brunzell
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, Virginia
| | - Alev Erisir
- Department of Psychology, University of Virginia, Charlottesville, Virginia
| | - Wendy J Lynch
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, Virginia
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Becker JA, Kieffer BL, Le Merrer J. Differential behavioral and molecular alterations upon protracted abstinence from cocaine versus morphine, nicotine, THC and alcohol. Addict Biol 2017; 22:1205-1217. [PMID: 27126842 DOI: 10.1111/adb.12405] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 03/15/2016] [Accepted: 03/17/2016] [Indexed: 02/04/2023]
Abstract
Unified theories of addiction are challenged by differing drug-seeking behaviors and neurobiological adaptations across drug classes, particularly for narcotics and psychostimulants. We previously showed that protracted abstinence to opiates leads to despair behavior and social withdrawal in mice, and we identified a transcriptional signature in the extended amygdala that was also present in animals abstinent from nicotine, Δ9-tetrahydrocannabinol (THC) and alcohol. Here we examined whether protracted abstinence to these four drugs would also share common behavioral features, and eventually differ from abstinence to the prototypic psychostimulant cocaine. We found similar reduced social recognition, increased motor stereotypies and increased anxiety with relevant c-fos response alterations in morphine, nicotine, THC and alcohol abstinent mice. Protracted abstinence to cocaine, however, led to strikingly distinct, mostly opposing adaptations at all levels, including behavioral responses, neuronal activation and gene expression. Together, these data further document the existence of common hallmarks for protracted abstinence to opiates, nicotine, THC and alcohol that develop within motivation/emotion brain circuits. In our model, however, these do not apply to cocaine, supporting the notion of unique mechanisms in psychostimulant abuse.
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Affiliation(s)
- Jérôme A.J. Becker
- Médecine Translationelle et Neurogénétique, Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U-964, CNRS UMR-7104; Université de Strasbourg; France
- Physiologie de la Reproduction et des Comportements, INRA UMR-0085, CNRS UMR-7247; Université de Tours Rabelais; France
| | - Brigitte L. Kieffer
- Médecine Translationelle et Neurogénétique, Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U-964, CNRS UMR-7104; Université de Strasbourg; France
- Douglas Hospital Research Center, Department of Psychiatry, Faculty of Medicine; McGill University; Canada
| | - Julie Le Merrer
- Médecine Translationelle et Neurogénétique, Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U-964, CNRS UMR-7104; Université de Strasbourg; France
- Physiologie de la Reproduction et des Comportements, INRA UMR-0085, CNRS UMR-7247; Université de Tours Rabelais; France
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Ehlinger DG, Burke JC, McDonald CG, Smith RF, Bergstrom HC. Nicotine-induced and D1-receptor-dependent dendritic remodeling in a subset of dorsolateral striatum medium spiny neurons. Neuroscience 2017; 356:242-254. [PMID: 28576726 DOI: 10.1016/j.neuroscience.2017.05.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 05/11/2017] [Accepted: 05/22/2017] [Indexed: 01/25/2023]
Abstract
Nicotine is one of the most addictive substances known, targeting multiple memory systems, including the ventral and dorsal striatum. One form of neuroplasticity commonly associated with nicotine is dendrite remodeling. Nicotine-induced dendritic remodeling of ventral striatal medium spiny neurons (MSNs) is well-documented. Whether MSN dendrites in the dorsal striatum undergo a similar pattern of nicotine-induced structural remodeling is unknown. A morphometric analysis of Golgi-stained MSNs in rat revealed a natural asymmetry in dendritic morphology across the mediolateral axis, with larger, more complex MSNs found in the dorsolateral striatum (DLS). Chronic nicotine produced a lasting (at least 21day) expansion in the dendritic complexity of MSNs in the DLS, but not dorsomedial striatum (DMS). Given prior evidence that MSN subtypes can be distinguished based on dendritic morphology, MSNs were segregated into morphological subpopulations based on the number of primary dendrites. Analysis of these subpopulations revealed that DLS MSNs with more primary dendrites were selectively remodeled by chronic nicotine exposure and remodeling was specific to the distal-most portions of the dendritic arbor. Co-administration of the dopamine D1 receptor (D1R) antagonist SCH23390 completely reversed the selective effects of nicotine on DLS MSN dendrite morphology, supporting a causal role for dopamine signaling at D1 receptors in nicotine-induced dendrite restructuring. Considering the functional importance of the DLS in shaping and expressing habitual behavior, these data support a model in which nicotine induces persistent and selective changes in the circuit connectivity of the DLS that may promote and sustain addiction-related behavior.
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Affiliation(s)
- Daniel G Ehlinger
- Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Julian C Burke
- Department of Psychology, George Mason University, Fairfax, VA, USA
| | - Craig G McDonald
- Department of Psychology, George Mason University, Fairfax, VA, USA
| | - Robert F Smith
- Department of Psychology, George Mason University, Fairfax, VA, USA
| | - Hadley C Bergstrom
- Department of Psychological Science, Program in Neuroscience and Behavior, Vassar College, Poughkeepsie, NY, USA.
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Spear LP. Consequences of adolescent use of alcohol and other drugs: Studies using rodent models. Neurosci Biobehav Rev 2016; 70:228-243. [PMID: 27484868 DOI: 10.1016/j.neubiorev.2016.07.026] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 07/08/2016] [Accepted: 07/22/2016] [Indexed: 10/21/2022]
Abstract
Studies using animal models of adolescent exposure to alcohol, nicotine, cannabinoids, and the stimulants cocaine, 3,4-methylenedioxymethampethamine and methamphetamine have revealed a variety of persisting neural and behavioral consequences. Affected brain regions often include mesolimbic and prefrontal regions undergoing notable ontogenetic change during adolescence, although it is unclear whether this represents areas of specific vulnerability or particular scrutiny to date. Persisting alterations in forebrain systems critical for modulating reward, socioemotional processing and cognition have emerged, including apparent induction of a hyper-dopaminergic state with some drugs and/or attenuations in neurons expressing cholinergic markers. Disruptions in cognitive functions such as working memory, alterations in affect including increases in social anxiety, and mixed evidence for increases in later drug self-administration has also been reported. When consequences of adolescent and adult exposure were compared, adolescents were generally found to be more vulnerable to alcohol, nicotine, and cannabinoids, but generally not to stimulants. More work is needed to determine how adolescent drug exposure influences sculpting of the adolescent brain, and provide approaches to prevent/reverse these effects.
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Affiliation(s)
- Linda Patia Spear
- Department of Psychology, Developmental Exposure Alcohol Research Center (DEARC), Binghamton University, Binghamton, NY, United States.
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Yuan M, Cross SJ, Loughlin SE, Leslie FM. Nicotine and the adolescent brain. J Physiol 2015; 593:3397-412. [PMID: 26018031 PMCID: PMC4560573 DOI: 10.1113/jp270492] [Citation(s) in RCA: 327] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Accepted: 05/14/2015] [Indexed: 12/11/2022] Open
Abstract
Adolescence encompasses a sensitive developmental period of enhanced clinical vulnerability to nicotine, tobacco, and e-cigarettes. While there are sociocultural influences, data at preclinical and clinical levels indicate that this adolescent sensitivity has strong neurobiological underpinnings. Although definitions of adolescence vary, the hallmark of this period is a profound reorganization of brain regions necessary for mature cognitive and executive function, working memory, reward processing, emotional regulation, and motivated behavior. Regulating critical facets of brain maturation are nicotinic acetylcholine receptors (nAChRs). However, perturbations of cholinergic systems during this time with nicotine, via tobacco or e-cigarettes, have unique consequences on adolescent development. In this review, we highlight recent clinical and preclinical data examining the adolescent brain's distinct neurobiology and unique sensitivity to nicotine. First, we discuss what defines adolescence before reviewing normative structural and neurochemical alterations that persist until early adulthood, with an emphasis on dopaminergic systems. We review how acute exposure to nicotine impacts brain development and how drug responses differ from those seen in adults. Finally, we discuss the persistent alterations in neuronal signaling and cognitive function that result from chronic nicotine exposure, while highlighting a low dose, semi-chronic exposure paradigm that may better model adolescent tobacco use. We argue that nicotine exposure, increasingly occurring as a result of e-cigarette use, may induce epigenetic changes that sensitize the brain to other drugs and prime it for future substance abuse.
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Affiliation(s)
| | - Sarah J Cross
- Anatomy & Neurobiology, School of Medicine, University of California, Irvine, CA, USA
| | | | - Frances M Leslie
- Departments of Pharmacology
- Anatomy & Neurobiology, School of Medicine, University of California, Irvine, CA, USA
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Smith KC, Ehlinger DG, Smith RF. Adolescent nicotine alters dendritic morphology in the bed nucleus of the stria terminalis. Neurosci Lett 2015; 590:111-5. [DOI: 10.1016/j.neulet.2015.01.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 01/21/2015] [Accepted: 01/22/2015] [Indexed: 01/10/2023]
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