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de Melo Bastos Cavalcante C, Bruno Oliveira K, Maria Araújo de Souza F, Maria Jatobá Hasten Reiter M, Rodrigues Melo da Silva B, Lavínia da Silva Oliveira K, Vinicius Dos Santos Sales M, Larissa Dias Pacheco A, Santos Siqueira E, de Araújo Costa M, Gomes Dos Santos Neto J, Gabriely Duarte Torres R, Catarina R Leite A, Santana de Melo I, Salgueiro Machado S, Duzzioni M, Leite Góes Gitaí D, Wagner de Castro O. Crack cocaine inhalation increases seizure susceptibility by reducing acetylcholinesterase activity. Epilepsy Behav 2024; 156:109832. [PMID: 38761450 DOI: 10.1016/j.yebeh.2024.109832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 05/02/2024] [Accepted: 05/07/2024] [Indexed: 05/20/2024]
Abstract
Crack cocaine is a highly addictive and potent stimulant drug. Animal studies have shown that the cholinergic system plays a role in neurotoxicity induced by cocaine or its active metabolites inhalation. Behavioral alterations associated with crack cocaine use include hyperactivity, depressed mood, and decreased seizure threshold. Here we evaluate the acetylcholinesterase (AChE) and reactive oxygen species (ROS) activity, behavioral profile, and the threshold for epileptic seizures in rats that received intrahippocampal pilocarpine (H-PILO) followed by exposure to crack cocaine (H-PILO + CRACK). Animals exposed to H-PILO + CRACK demonstrated increased severity and frequency of limbic seizures. The AChE activity was reduced in the groups exposed to crack cocaine alone (CRACK) and H-PILO + CRACK, whereas levels of ROS remained unchanged. In addition, crack cocaine exposure increased vertical locomotor activity, without changing water and sucrose intake. Short-term memory consolidation remained unchanged after H-PILO, H-PILO + CRACK, and CRACK administration. Overall, our data suggest that crack cocaine inhalation reduced the threshold for epileptic seizures in rats submitted to low doses of pilocarpine through the inhibition of AChE. Taken together, our findings can be useful in the development of effective strategies for preventing and treating the harmful effects of cocaine and crack cocaine on the central nervous system.
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Affiliation(s)
| | - Kellysson Bruno Oliveira
- Department of Physiology, Institute of Biological Science and Health of Federal University of Alagoas, Maceió, Alagoas, Brazil
| | - Fernanda Maria Araújo de Souza
- Department of Physiology, Institute of Biological Science and Health of Federal University of Alagoas, Maceió, Alagoas, Brazil
| | | | - Bianca Rodrigues Melo da Silva
- Department of Physiology, Institute of Biological Science and Health of Federal University of Alagoas, Maceió, Alagoas, Brazil
| | | | | | - Amanda Larissa Dias Pacheco
- Department of Physiology, Institute of Biological Science and Health of Federal University of Alagoas, Maceió, Alagoas, Brazil
| | - Edite Santos Siqueira
- Department of Physiology, Institute of Biological Science and Health of Federal University of Alagoas, Maceió, Alagoas, Brazil
| | - Maisa de Araújo Costa
- Department of Physiology, Institute of Biological Science and Health of Federal University of Alagoas, Maceió, Alagoas, Brazil
| | - José Gomes Dos Santos Neto
- Department of Physiology, Institute of Biological Science and Health of Federal University of Alagoas, Maceió, Alagoas, Brazil
| | - Rayssa Gabriely Duarte Torres
- Department of Physiology, Institute of Biological Science and Health of Federal University of Alagoas, Maceió, Alagoas, Brazil
| | - Ana Catarina R Leite
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, Alagoas, Brazil
| | - Igor Santana de Melo
- Department of Physiology, Institute of Biological Science and Health of Federal University of Alagoas, Maceió, Alagoas, Brazil
| | - Sônia Salgueiro Machado
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, Alagoas, Brazil
| | - Marcelo Duzzioni
- Department of Physiology, Institute of Biological Science and Health of Federal University of Alagoas, Maceió, Alagoas, Brazil
| | - Daniel Leite Góes Gitaí
- Department of Physiology, Institute of Biological Science and Health of Federal University of Alagoas, Maceió, Alagoas, Brazil
| | - Olagide Wagner de Castro
- Department of Physiology, Institute of Biological Science and Health of Federal University of Alagoas, Maceió, Alagoas, Brazil.
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2
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Chmiel J, Malinowska A, Rybakowski F, Leszek J. The Effectiveness of Mindfulness in the Treatment of Methamphetamine Addiction Symptoms: Does Neuroplasticity Play a Role? Brain Sci 2024; 14:320. [PMID: 38671972 PMCID: PMC11047954 DOI: 10.3390/brainsci14040320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 03/23/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
INTRODUCTION Methamphetamine is a highly stimulating psychoactive drug that causes life-threatening addictions and affects millions of people around the world. Its effects on the brain are complex and include disturbances in the neurotransmitter systems and neurotoxicity. There are several known treatment methods, but their effectiveness is moderate. It must be emphasised that no drugs have been approved for treatment. For this reason, there is an urgent need to develop new, effective, and safe treatments for methamphetamine. One of the potential treatments is mindfulness meditation. In recent years, this technique has been researched extensively in the context of many neurological and psychiatric disorders. METHODS This review explores the use of mindfulness in the treatment of methamphetamine addiction. Searches were conducted in the PubMed/Medline, Research Gate, and Cochrane databases. RESULTS Ten studies were identified that used mindfulness-based interventions in the treatment of methamphetamine addiction. The results show that mindfulness is an effective form of reducing hunger, risk of relapses, stress indicators, depression, and aggression, alone or in combination with transcranial direct current stimulation (tDCS). Mindfulness also improved the cognitive function in addicts. The included studies used only behavioural measures. The potential mechanisms of mindfulness in addiction were explained, and it was proposed that it can induce neuroplasticity, alleviating the symptoms of addiction. CONCLUSIONS Evidence from the studies suggest that mindfulness may be an effective treatment option for methamphetamine addiction, used alone or in combination with tDCS. However, further high-quality research is required to establish the role of this treatment option in this field. The use of neuroimaging and neurophysiological measures is fundamental to understand the mechanisms of mindfulness.
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Affiliation(s)
- James Chmiel
- Institute of Neurofeedback and tDCS Poland, 70-393 Szczecin, Poland
| | | | - Filip Rybakowski
- Department and Clinic of Psychiatry, Poznan University of Medical Sciences, 61-701 Poznań, Poland
| | - Jerzy Leszek
- Department and Clinic of Psychiatry, Wrocław Medical University, 54-235 Wrocław, Poland
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3
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Liu SX, Ramakrishnan A, Shen L, Gewirtz JC, Georgieff MK, Tran PV. Chromatin accessibility and H3K9me3 landscapes reveal long-term epigenetic effects of fetal-neonatal iron deficiency in rat hippocampus. BMC Genomics 2024; 25:301. [PMID: 38515015 PMCID: PMC10956188 DOI: 10.1186/s12864-024-10230-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 03/15/2024] [Indexed: 03/23/2024] Open
Abstract
BACKGROUND Iron deficiency (ID) during the fetal-neonatal period results in long-term neurodevelopmental impairments associated with pervasive hippocampal gene dysregulation. Prenatal choline supplementation partially normalizes these effects, suggesting an interaction between iron and choline in hippocampal transcriptome regulation. To understand the regulatory mechanisms, we investigated epigenetic marks of genes with altered chromatin accessibility (ATAC-seq) or poised to be repressed (H3K9me3 ChIP-seq) in iron-repleted adult rats having experienced fetal-neonatal ID exposure with or without prenatal choline supplementation. RESULTS Fetal-neonatal ID was induced by limiting maternal iron intake from gestational day (G) 2 through postnatal day (P) 7. Half of the pregnant dams were given supplemental choline (5.0 g/kg) from G11-18. This resulted in 4 groups at P65 (Iron-sufficient [IS], Formerly Iron-deficient [FID], IS with choline [ISch], and FID with choline [FIDch]). Hippocampi were collected from P65 iron-repleted male offspring and analyzed for chromatin accessibility and H3K9me3 enrichment. 22% and 24% of differentially transcribed genes in FID- and FIDch-groups, respectively, exhibited significant differences in chromatin accessibility, whereas 1.7% and 13% exhibited significant differences in H3K9me3 enrichment. These changes mapped onto gene networks regulating synaptic plasticity, neuroinflammation, and reward circuits. Motif analysis of differentially modified genomic sites revealed significantly stronger choline effects than early-life ID and identified multiple epigenetically modified transcription factor binding sites. CONCLUSIONS This study reveals genome-wide, stable epigenetic changes and epigenetically modifiable gene networks associated with specific chromatin marks in the hippocampus, and lays a foundation to further elucidate iron-dependent epigenetic mechanisms that underlie the long-term effects of fetal-neonatal ID, choline, and their interactions.
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Affiliation(s)
- Shirelle X Liu
- Department of Pediatrics, University of Minnesota, Minneapolis, MN, 55455, USA
- Department of Psychology, University of Minnesota, Minneapolis, MN, 55455, USA
| | | | - Li Shen
- Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Jonathan C Gewirtz
- Department of Psychology, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Michael K Georgieff
- Department of Pediatrics, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Phu V Tran
- Department of Pediatrics, University of Minnesota, Minneapolis, MN, 55455, USA.
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4
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Basu S, Ro EJ, Liu Z, Kim H, Bennett A, Kang S, Suh H. The Mef2c Gene Dose-Dependently Controls Hippocampal Neurogenesis and the Expression of Autism-Like Behaviors. J Neurosci 2024; 44:e1058232023. [PMID: 38123360 PMCID: PMC10860657 DOI: 10.1523/jneurosci.1058-23.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 11/30/2023] [Accepted: 12/11/2023] [Indexed: 12/23/2023] Open
Abstract
Mutations in the activity-dependent transcription factor MEF2C have been associated with several neuropsychiatric disorders. Among these, autism spectrum disorder (ASD)-related behavioral deficits are manifested. Multiple animal models that harbor mutations in Mef2c have provided compelling evidence that Mef2c is indeed an ASD gene. However, studies in mice with germline or global brain knock-out of Mef2c are limited in their ability to identify the precise neural substrates and cell types that are required for the expression of Mef2c-mediated ASD behaviors. Given the role of hippocampal neurogenesis in cognitive and social behaviors, in this study we aimed to investigate the role of Mef2c in the structure and function of newly generated dentate granule cells (DGCs) in the postnatal hippocampus and to determine whether disrupted Mef2c function is responsible for manifesting ASD behaviors. Overexpression of Mef2c (Mef2cOE ) arrested the transition of neurogenesis at progenitor stages, as indicated by sustained expression of Sox2+ in Mef2cOE DGCs. Conditional knock-out of Mef2c (Mef2ccko ) allowed neuronal commitment of Mef2ccko cells; however, Mef2ccko impaired not only dendritic arborization and spine formation but also synaptic transmission onto Mef2ccko DGCs. Moreover, the abnormal structure and function of Mef2ccko DGCs led to deficits in social interaction and social novelty recognition, which are key characteristics of ASD behaviors. Thus, our study revealed a dose-dependent requirement of Mef2c in the control of distinct steps of neurogenesis, as well as a critical cell-autonomous function of Mef2c in newborn DGCs in the expression of proper social behavior in both sexes.
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Affiliation(s)
- Sreetama Basu
- Department of Neurosciences, Lerner Research Institute, Cleveland Clinic, Cleveland 44109, Ohio
| | - Eun Jeoung Ro
- Department of Neurosciences, Lerner Research Institute, Cleveland Clinic, Cleveland 44109, Ohio
| | - Zhi Liu
- Department of Neurosciences, Lerner Research Institute, Cleveland Clinic, Cleveland 44109, Ohio
| | - Hyunjung Kim
- Department of Pharmacology & Toxicology, Medical College of Georgia, Augusta University, Augusta 30912, Georgia
| | - Aubrey Bennett
- Department of Pharmacology & Toxicology, Medical College of Georgia, Augusta University, Augusta 30912, Georgia
| | - Seungwoo Kang
- Department of Pharmacology & Toxicology, Medical College of Georgia, Augusta University, Augusta 30912, Georgia
| | - Hoonkyo Suh
- Department of Neurosciences, Lerner Research Institute, Cleveland Clinic, Cleveland 44109, Ohio
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5
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Vines L, Sotelo D, Giddens N, Manza P, Volkow ND, Wang GJ. Neurological, Behavioral, and Pathophysiological Characterization of the Co-Occurrence of Substance Use and HIV: A Narrative Review. Brain Sci 2023; 13:1480. [PMID: 37891847 PMCID: PMC10605099 DOI: 10.3390/brainsci13101480] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/10/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
Combined antiretroviral therapy (cART) has greatly reduced the severity of HIV-associated neurocognitive disorders in people living with HIV (PLWH); however, PLWH are more likely than the general population to use drugs and suffer from substance use disorders (SUDs) and to exhibit risky behaviors that promote HIV transmission and other infections. Dopamine-boosting psychostimulants such as cocaine and methamphetamine are some of the most widely used substances among PLWH. Chronic use of these substances disrupts brain function, structure, and cognition. PLWH with SUD have poor health outcomes driven by complex interactions between biological, neurocognitive, and social factors. Here we review the effects of comorbid HIV and psychostimulant use disorders by discussing the distinct and common effects of HIV and chronic cocaine and methamphetamine use on behavioral and neurological impairments using evidence from rodent models of HIV-associated neurocognitive impairments (Tat or gp120 protein expression) and clinical studies. We also provide a biopsychosocial perspective by discussing behavioral impairment in differentially impacted social groups and proposing interventions at both patient and population levels.
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Affiliation(s)
- Leah Vines
- Laboratory of Neuroimaging, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (L.V.); (D.S.); (P.M.); (N.D.V.)
| | - Diana Sotelo
- Laboratory of Neuroimaging, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (L.V.); (D.S.); (P.M.); (N.D.V.)
| | - Natasha Giddens
- Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, WI 53719, USA;
| | - Peter Manza
- Laboratory of Neuroimaging, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (L.V.); (D.S.); (P.M.); (N.D.V.)
| | - Nora D. Volkow
- Laboratory of Neuroimaging, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (L.V.); (D.S.); (P.M.); (N.D.V.)
| | - Gene-Jack Wang
- Laboratory of Neuroimaging, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA; (L.V.); (D.S.); (P.M.); (N.D.V.)
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6
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Yang Z, Wang D. A Standardized Protocol for Early-life Stress-induced Social Defeat in Mice. Bio Protoc 2023; 13:e4703. [PMID: 37397794 PMCID: PMC10308185 DOI: 10.21769/bioprotoc.4703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 03/02/2023] [Accepted: 04/12/2023] [Indexed: 07/04/2023] Open
Abstract
Neuropsychiatric diseases, like depression, have a considerable and persistent impact on human health; however, little is known about their underlying pathogenesis. Social defeat is a model for stress-induced psychopathologies that could present with behaviors resembling those observed in humans with depression. However, previous animal models of social defeat mainly focus on adults. Here, we re-design the protocol of early-life stress-induced social defeat paradigm, which is based on a classic resident-intruder model. Briefly, each two-week-old experimental mouse of C57BL/6 strain is introduced into the home cage of an unfamiliar CD1 aggressor mouse for 30 min per day for 10 consecutive days. Later, all experimental mice are raised individually for another month. Finally, the mice are identified as defeated through social interaction and open field tests. This model has been shown to be etiological and predictive and provide high validity and could be a powerful tool to investigate the underlying pathogenesis of early onset depression. Graphical overview.
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Affiliation(s)
- Zhi Yang
- Precision Medicine Center, Precision Medicine Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- Department of Nephrology, West China Hospital, Sichuan University, Chengdu City, 610041, Sichuan Province, China
| | - Denian Wang
- Precision Medicine Center, Precision Medicine Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
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7
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Ma J, Xiong F, Li Z, Dong G, Sun X, Yin W, Cai H. The effect of chronic alcohol exposure on spatial memory and BDNF-TrkB- PLCγ1 signaling in the hippocampus of male and female mice. Heliyon 2023; 9:e16660. [PMID: 37303582 PMCID: PMC10248118 DOI: 10.1016/j.heliyon.2023.e16660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 05/22/2023] [Accepted: 05/23/2023] [Indexed: 06/13/2023] Open
Abstract
Alcohol is a commonly used drug worldwide, and abuse of alcohol has become a serious public health problem. Alcohol consumption over time can cause cognitive deficits and memory impairment, which is thought to be associated with changes in the hippocampus. Given previously known effects of brain-derived neurotrophic factor (BDNF) in regulating synaptic plasticity and learning and memory, we investigated the effect of chronic alcohol consumption on spatial memory impairment in both sexes and changes in BDNF signaling in the hippocampus. After 4 weeks of intermittent access to 20% alcohol, memory impairment in both male and female mice was evaluated using the Morris water maze and the expression of BDNF, TrkB, phosphorylation of PLCγ1 (p-PLCγ1) and PLCγ1 in the hippocampus was examined using Western blot. As expected, females spent longer escape latencies during the training phase, and both sexes spent shorter time in the target quadrant. Furthermore, after 4 weeks 20% alcohol exposure, we found significantly decreased expression levels of BDNF in the hippocampus of female mice but increased levels in male mice. TrkB and PLCγ1 expression showed no significant change in the hippocampus of both sexes. These findings suggest that chronic alcohol exposure may induce spatial memory impairment in both sexes and opposite changes in expression of BDNF and p-PLCγ1 in the hippocampus of males and females.
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Affiliation(s)
| | | | | | | | | | | | - Hongxing Cai
- Corresponding author. .Department of Forensic Science, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, China.
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Mañas-Padilla MC, Melgar-Locatelli S, Vicente L, Gil-Rodríguez S, Rivera P, Rodríguez-Pérez C, Castilla-Ortega E. Temozolomide treatment inhibits spontaneous motivation for exploring a complex object in mice: A potential role of adult hippocampal neurogenesis in "curiosity". J Comp Neurol 2023; 531:548-560. [PMID: 36515664 PMCID: PMC10107499 DOI: 10.1002/cne.25442] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 11/02/2022] [Accepted: 11/26/2022] [Indexed: 12/15/2022]
Abstract
Intrinsic exploratory biases are an innate motivation for exploring certain types of stimuli or environments over others, and they may be associated with cognitive, emotional, and even personality-like traits. However, their neurobiological basis has been scarcely investigated. Considering the involvement of the hippocampus in novelty recognition and in spatial and pattern separation tasks, this work researched the role of adult hippocampal neurogenesis (AHN) in intrinsic exploratory bias for a perceptually complex object in mice. Spontaneous object preference tasks revealed that both male and female C57BL/6J mice showed a consistent unconditioned preference for exploring "complex"-irregular-objects over simpler ones. Furthermore, increasing objects' complexity resulted in an augmented time of object exploration. In a different experiment, male mice received either vehicle or the DNA alkylating agent temozolomide (TMZ) for 4 weeks, a pharmacological treatment that reduced AHN as evidenced by immunohistochemistry. After assessment in a behavioral test battery, the TMZ-treated mice did not show any alterations in general exploratory and anxiety-like responses. However, when tested in the spontaneous object preference task, the TMZ-treated mice did not display enhanced exploration of the complex object, as evidenced both by a reduced exploration time-specifically for the complex object-and a lack of preference for the complex object over the simple one. This study supports a novel role of AHN in intrinsic exploratory bias for perceptual complexity. Moreover, the spontaneous complex object preference task as a rodent model of "curiosity" is discussed.
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Affiliation(s)
- M Carmen Mañas-Padilla
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain.,Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Universidad de Málaga, Málaga, Spain
| | - Sonia Melgar-Locatelli
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain.,Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Universidad de Málaga, Málaga, Spain
| | - Lucía Vicente
- Centro de Experimentación y Conducta Animal, Universidad de Málaga, Málaga, Spain.,Departamento de Psicología, Universidad de Deusto, Bilbao, Spain
| | - Sara Gil-Rodríguez
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain.,Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Universidad de Málaga, Málaga, Spain
| | - Patricia Rivera
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain.,Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Celia Rodríguez-Pérez
- Departamento de Nutrición y Bromatología, Universidad de Granada, Campus de Melilla, Melilla, Spain.,Instituto de Nutrición y Tecnología de los Alimentos 'José Mataix', Universidad de Granada, Granada, Spain.,Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
| | - Estela Castilla-Ortega
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain.,Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Universidad de Málaga, Málaga, Spain
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9
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Lu L, Yang W, Zhao D, Wen X, Liu J, Liu J, Yuan K. Brain recovery of the NAc fibers and prediction of craving changes in person with heroin addiction: A longitudinal study. Drug Alcohol Depend 2023; 243:109749. [PMID: 36565569 DOI: 10.1016/j.drugalcdep.2022.109749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 11/14/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND Progress have been made in brain function recovery after long-term abstinence in person with heroin addiction (PHA). However, less is known about whether the nucleus accumbens (NAc) white matter pathways can recover in PHA by prolonged abstinence. METHODS Forty-two PHA and Thirty-nine age- and gender- matched healthy controls (HCs) were recruited. Two MRI scans were obtained at baseline (PHA1) and 8-month follow-up (PHA2). We employed tractography atlas-based analysis (TABS) method to investigate fractional anisotropy (FA) changes in NAc fiber tracts (i.e., Insula-NAc, ventral tegmental area (VTA)-NAc, medial prefrontal cortex (MPFC)-NAc) in PHA. A partial least square regression (PLSR) analysis was carried to explore whether FA of NAc fiber tracts can predict longitudinal craving changes. RESULTS Relative to HCs, lower FA was found in the right Insula-NAc and VTA-NAc fiber tracts in PHA1, and PHA2 showed increased FA values in these tracts compared with PHA1. Furthermore, changes of FA of NAc fiber tracts can predict longitudinal craving changes (r = 0.51). Additionally, craving changes can also be predicted from FA changes in the left Insula-NAc (r = 0.601) and VTA-NAc (r = 0.384) fiber alone. CONCLUSIONS Results indicated that the right Insula-NAc and VTA-NAc fiber tracts are potential biomarkers for brain recovery. Prediction of craving changes highlighted the utility of structural markers to inform clinical decision-making of treatment for PHA.
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Affiliation(s)
- Ling Lu
- Center for Brain Imaging, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China; Engineering Research Center of Molecular and Neuro Imaging Ministry of Education, Xi'an, Shaanxi, 710071, China
| | - Wenhan Yang
- Department of Radiology, Second Xiangya Hospital of Central South University, Changsha, China
| | - Desheng Zhao
- Center for Brain Imaging, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China; Engineering Research Center of Molecular and Neuro Imaging Ministry of Education, Xi'an, Shaanxi, 710071, China
| | - Xinwen Wen
- Center for Brain Imaging, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China; Engineering Research Center of Molecular and Neuro Imaging Ministry of Education, Xi'an, Shaanxi, 710071, China
| | - Jun Liu
- Department of Radiology, Second Xiangya Hospital of Central South University, Changsha, China.
| | - Jixin Liu
- Center for Brain Imaging, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China; Engineering Research Center of Molecular and Neuro Imaging Ministry of Education, Xi'an, Shaanxi, 710071, China.
| | - Kai Yuan
- Center for Brain Imaging, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China; Engineering Research Center of Molecular and Neuro Imaging Ministry of Education, Xi'an, Shaanxi, 710071, China; International Joint Research Center for Advanced Medical Imaging and Intelligent Diagnosis and Treatment & Xi'an Key Laboratory of Intelligent Sensing and Regulation of trans-Scale Life Information, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China; Information Processing Laboratory, School of Information Engineering, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia, 014010, China.
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10
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Li J, Wu Y, Xue T, He J, Zhang L, Liu Y, Zhao J, Chen Z, Xie M, Xiao B, Ye Y, Qin S, Tang Q, Huang M, Zhu H, Liu N, Guo F, Zhang L, Zhang L. Cdc42 signaling regulated by dopamine D2 receptor correlatively links specific brain regions of hippocampus to cocaine addiction. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166569. [PMID: 36243293 DOI: 10.1016/j.bbadis.2022.166569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 09/18/2022] [Accepted: 10/06/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND Hippocampus plays critical roles in drug addiction. Cocaine-induced modifications in dopamine receptor function and the downstream signaling are important regulation mechanisms in cocaine addiction. Rac regulates actin filament accumulation while Cdc42 stimulates the formation of filopodia and neurite outgrowth. Based on the region specific roles of small GTPases in brain, we focused on the hippocampal subregions to detect the regulation of Cdc42 signaling in long-term morphological and behavioral adaptations to cocaine. METHODS Genetically modified mouse models of Cdc42, dopamine receptor D1 (D1R) and D2 (D2R) and expressed Cdc42 point mutants that are defective in binding to and activation of its downstream effector molecules PAK and N-WASP were generated, respectively, in CA1 or dentate gyrus (DG) subregion. RESULTS Cocaine induced upregulation of Cdc42 signaling activity. Cdc42 knockout or mutants blocked cocaine-induced increase in spine plasticity in hippocampal CA1 pyramidal neurons, leading to a decreased conditional place preference (CPP)-associated memories and spatial learning and memory in water maze. Cdc42 knockout or mutants promoted cocaine-induced loss of neurogenesis in DG, leading to a decreased CPP-associated memories and spatial learning and memory in water maze. Furthermore, by using D1R knockout, D2R knockout, and D2R/Cdc42 double knockout mice, we found that D2R, but not D1R, regulated Cdc42 signaling in cocaine-induced neural plasticity and behavioral changes. CONCLUSIONS Cdc42 acts downstream of D2R in the hippocampus and plays an important role in cocaine-induced neural plasticity through N-WASP and PAK-LIMK-Cofilin, and Cdc42 signaling pathway correlatively links specific brain regions (CA1, dentate gyrus) to cocaine-induced CPP behavior.
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Affiliation(s)
- Juan Li
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China; Department of Histology and Embryology, NMPA Key Laboratory for Safety Evaluation of Cosmetics, Key Laboratory of Construction and Detection in Tissue Engineering of Guangdong Province, School of Basic Medical Sciences, Center for Orthopaedic Surgery of the Third Affiliated Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yue Wu
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Tao Xue
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Jing He
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Lei Zhang
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yutong Liu
- Department of Histology and Embryology, NMPA Key Laboratory for Safety Evaluation of Cosmetics, Key Laboratory of Construction and Detection in Tissue Engineering of Guangdong Province, School of Basic Medical Sciences, Center for Orthopaedic Surgery of the Third Affiliated Hospital, Southern Medical University, Guangzhou 510515, China
| | - Jinlan Zhao
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Zhenzhong Chen
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Minjuan Xie
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Bin Xiao
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yingshan Ye
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Sifei Qin
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Qingqiu Tang
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Mengfan Huang
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Hangfei Zhu
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - N Liu
- Institute of Comparative Medicine & Laboratory Animal Center, Elderly Health Services Research Center, Southern Medical University, Guangzhou 510515, China
| | - Fukun Guo
- Division of Experimental Hematology and Cancer Biology, Children's Hospital Research Foundation, Cincinnati, OH, USA
| | - Lin Zhang
- Department of Histology and Embryology, NMPA Key Laboratory for Safety Evaluation of Cosmetics, Key Laboratory of Construction and Detection in Tissue Engineering of Guangdong Province, School of Basic Medical Sciences, Center for Orthopaedic Surgery of the Third Affiliated Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Lu Zhang
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China.
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11
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Mañas‐Padilla MC, Tezanos P, Cintado E, Vicente L, Sánchez‐Salido L, Gil‐Rodríguez S, Trejo JL, Santín LJ, Castilla‐Ortega E. Environmental enrichment alleviates cognitive and psychomotor alterations and increases adult hippocampal neurogenesis in cocaine withdrawn mice. Addict Biol 2023; 28:e13244. [PMID: 36577726 PMCID: PMC9786803 DOI: 10.1111/adb.13244] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 09/07/2022] [Accepted: 09/27/2022] [Indexed: 11/17/2022]
Abstract
Cocaine is a widely used psychostimulant drug whose repeated exposure induces persistent cognitive/emotional dysregulation, which could be a predictor of relapse in users. However, there is scarce evidence on effective treatments to alleviate these symptoms. Environmental enrichment (EE) has been shown to be associated with improved synaptic function and cellular plasticity changes related to adult hippocampal neurogenesis (AHN), resulting in cognitive enhancement. Therefore, EE could mitigate the negative impact of chronic administration of cocaine in mice and reduce the emotional and cognitive symptoms present during cocaine abstinence. In this study, mice were chronically administered with cocaine for 14 days, and control mice received saline. After the last cocaine or saline dose, mice were submitted to control or EE housing conditions, and they stayed undisturbed for 28 days. Subsequently, mice were evaluated with a battery of behavioural tests for exploratory activity, emotional behaviour, and cognitive performance. EE attenuated hyperlocomotion, induced anxiolytic-like behaviour and alleviated cognitive impairment in spatial memory in the cocaine-abstinent mice. The EE protocol notably upregulated AHN in both control and cocaine-treated mice, though cocaine slightly reduced the number of immature neurons. Altogether, these results demonstrate that EE could enhance hippocampal neuroplasticity ameliorating the behavioural and cognitive consequences of repeated administration of cocaine. Therefore, environmental stimulation may be a useful strategy in the treatment cocaine addiction.
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Affiliation(s)
- M. Carmen Mañas‐Padilla
- Instituto de Investigación Biomédica de Málaga‐IBIMAMálagaSpain,Departamento de Psicobiología y Metodología de las Ciencias del ComportamientoUniversidad de MálagaMálagaSpain
| | - Patricia Tezanos
- Department of Translational NeuroscienceCajal Institute, Spanish National Research CouncilMadridSpain
| | - Elisa Cintado
- Department of Translational NeuroscienceCajal Institute, Spanish National Research CouncilMadridSpain
| | - Lucía Vicente
- Centro de Experimentación AnimalUniversidad de MálagaMálagaSpain,Departamento de PsicologíaUniversidad de DeustoBilbaoSpain
| | - Lourdes Sánchez‐Salido
- Instituto de Investigación Biomédica de Málaga‐IBIMAMálagaSpain,Unidad de Gestión Clínica de Salud MentalHospital Regional Universitario de MálagaMálagaSpain
| | - Sara Gil‐Rodríguez
- Instituto de Investigación Biomédica de Málaga‐IBIMAMálagaSpain,Departamento de Psicobiología y Metodología de las Ciencias del ComportamientoUniversidad de MálagaMálagaSpain
| | - José L. Trejo
- Department of Translational NeuroscienceCajal Institute, Spanish National Research CouncilMadridSpain
| | - Luis J. Santín
- Instituto de Investigación Biomédica de Málaga‐IBIMAMálagaSpain,Departamento de Psicobiología y Metodología de las Ciencias del ComportamientoUniversidad de MálagaMálagaSpain
| | - Estela Castilla‐Ortega
- Instituto de Investigación Biomédica de Málaga‐IBIMAMálagaSpain,Departamento de Psicobiología y Metodología de las Ciencias del ComportamientoUniversidad de MálagaMálagaSpain
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12
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Vaz A, Ribeiro I, Pinto L. Frontiers in Neurogenesis. Cells 2022; 11:cells11223567. [PMID: 36428996 PMCID: PMC9688671 DOI: 10.3390/cells11223567] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 11/01/2022] [Indexed: 11/16/2022] Open
Abstract
One of the most intriguing dogmas in neurosciences-the empirical lack of brain neuronal regeneration in adulthood onwards to late life-began to be debunked initially by research groups focused on understanding postnatal (early days/weeks of murine and guinea pigs) neurodevelopmental and neuroplastic events [...].
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Affiliation(s)
- Andreia Vaz
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- ICVS/3B’s–PT Government Associate Laboratory, 4710-057 Braga, Portugal
- Bn’ML, Behavioral and Molecular Lab, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Inês Ribeiro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- ICVS/3B’s–PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Luísa Pinto
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- ICVS/3B’s–PT Government Associate Laboratory, 4710-057 Braga, Portugal
- Bn’ML, Behavioral and Molecular Lab, Campus de Gualtar, 4710-057 Braga, Portugal
- Correspondence:
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13
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Liu H, Yang Z, Yu C, Dong H, Wang S, Wang G, Wang D. Tau aggravates stress-induced anxiety by inhibiting adult ventral hippocampal neurogenesis in mice. Cereb Cortex 2022; 33:3853-3865. [PMID: 36047921 DOI: 10.1093/cercor/bhac312] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 07/18/2022] [Accepted: 07/19/2022] [Indexed: 11/14/2022] Open
Abstract
Ventral adult hippocampal neurogenesis may be a key factor in determining individual levels of vulnerability to stress and related psychiatric disorders. However, the underlying mechanism remains unclear. Here, we show that the expression of Tau and Tau isoforms is markedly increased in the ventral dentate gyrus (vDG) after social defeat stress in young adult mice. Furthermore, glycogen synthase kinase-3β and calcium/calmodulin-dependent protein kinase II-α activity and calcium/calmodulin-dependent protein kinase II-β upregulation substantially promote Tau phosphorylation, which disrupts the dendritic structural plasticity of granule cells in the vDG of the hippocampus, and this action is necessary and sufficient for the stress response. In addition, Tau substantially inhibits the proliferation of newborn neurons in the vDG by regulating the PI3K-AKT signaling pathway in a mouse model of social defeat stress. Taken together, our findings reveal a novel mechanism by which Tau exacerbates stress responses and anxiety-related behavior by inhibiting the proliferation and maturation of hippocampal vDG neurons, providing a potential molecular target for the treatment of anxiety-like behavior induced by stress.
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Affiliation(s)
- Hao Liu
- Precision Medicine Center, Precision Medicine Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.,Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Zhi Yang
- Department of Nephrology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Chunyan Yu
- Laboratory of Omics Technology and Bioinformatics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Hao Dong
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Shiyan Wang
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Gang Wang
- Precision Medicine Center, Precision Medicine Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Denian Wang
- Precision Medicine Center, Precision Medicine Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.,Department of Respiratory and Critical Care Medicine, State Key Laboratory of Biotheraoy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
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14
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Lu L, Yang W, Zhang X, Tang F, Du Y, Fan L, Luo J, Yan C, Zhang J, Li J, Liu J, von Deneen KM, Yu D, Liu J, Yuan K. Potential brain recovery of frontostriatal circuits in heroin users after prolonged abstinence: A preliminary study. J Psychiatr Res 2022; 152:326-334. [PMID: 35785575 DOI: 10.1016/j.jpsychires.2022.06.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 06/23/2022] [Accepted: 06/24/2022] [Indexed: 11/16/2022]
Abstract
Neuroscientists have devoted efforts to explore potential brain recovery after prolonged abstinence in heroin users (HU). However, not much is known about whether frontostriatal circuits can recover after prolonged abstinence in HU. An eight-month longitudinal study was carried out for HU. Two MRI scans were obtained at baseline (HU1) and 8-month follow-up (HU2). The functional and structural connectivities of dorsal and ventral frontostriatal pathways were measured by resting-state functional connectivity (RSFC) and diffusion tensor imaging (DTI). Correlation analyses were employed to reveal the associations between neuroimaging and behavioral changes. Results suggested that relative to healthy controls (HCs), HU1 showed lower fractional anisotropy (FA) in the right dorsolateral prefrontal cortex (DLPFC)-to-caudate tracts and medial orbitofrontal cortex (mOFC)-to-nucleus accumbens (NAc) tracts as well as decreased RSFC in the left mOFC-NAc circuits. Longitudinal results revealed reduced craving and enhanced cognitive control in HU2 compared with HU1. After prolonged abstinence, HU2 showed increased FA values in the right DLPFC-caudate and mOFC-NAc tracts as well as increased RSFC strength in the bilateral mOFC-NAc circuits compared with HU1. In addition, changes in RSFC and FA values in the right mOFC-NAc circuit were negatively correlated with craving score changes. Similarly, negative correlations were also found between changes of RSFC in the bilateral DLPFC-caudate circuits and TMT-A scores. We provided scientific evidence for brain recovery of the dorsal and ventral frontostriatal circuits in HU after prolonged abstinence, and these circuits may be potential neuroimaging biomarkers for cognition and craving changes.
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Affiliation(s)
- Ling Lu
- Center for Brain Imaging, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi, 710126, China; Engineering Research Center of Molecular and Neuroimaging, Ministry of Education, Xi'an, Shaanxi, 710071, China
| | - Wenhan Yang
- Department of Radiology, Second Xiangya Hospital of Central South University, Changsha, China
| | - Xiaozi Zhang
- Center for Brain Imaging, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi, 710126, China; Engineering Research Center of Molecular and Neuroimaging, Ministry of Education, Xi'an, Shaanxi, 710071, China
| | - Fei Tang
- Department of Radiology, Second Xiangya Hospital of Central South University, Changsha, China
| | - Yanyao Du
- Department of Radiology, Second Xiangya Hospital of Central South University, Changsha, China
| | - Li Fan
- Department of Radiology, Second Xiangya Hospital of Central South University, Changsha, China
| | - Jing Luo
- Department of Radiology, Second Xiangya Hospital of Central South University, Changsha, China
| | - Cui Yan
- Department of Radiology, Second Xiangya Hospital of Central South University, Changsha, China
| | - Jun Zhang
- Hunan Judicial Police Academy, Changsha, China
| | - Jun Li
- Center for Brain Imaging, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi, 710126, China; Engineering Research Center of Molecular and Neuroimaging, Ministry of Education, Xi'an, Shaanxi, 710071, China
| | - Jixin Liu
- Center for Brain Imaging, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi, 710126, China; Engineering Research Center of Molecular and Neuroimaging, Ministry of Education, Xi'an, Shaanxi, 710071, China
| | - Karen M von Deneen
- Center for Brain Imaging, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi, 710126, China
| | - Dahua Yu
- International Joint Research Center for Advanced Medical Imaging and Intelligent Diagnosis and Treatment & Xi'an Key Laboratory of Intelligent Sensing and Regulation of trans-Scale Life Information, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi, 710126, China
| | - Jun Liu
- Department of Radiology, Second Xiangya Hospital of Central South University, Changsha, China.
| | - Kai Yuan
- Center for Brain Imaging, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi, 710126, China; Engineering Research Center of Molecular and Neuroimaging, Ministry of Education, Xi'an, Shaanxi, 710071, China; International Joint Research Center for Advanced Medical Imaging and Intelligent Diagnosis and Treatment & Xi'an Key Laboratory of Intelligent Sensing and Regulation of trans-Scale Life Information, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi, 710126, China; Information Processing Laboratory, School of Information Engineering, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia, 014010, China.
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15
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Witek K, Wydra K, Filip M. A High-Sugar Diet Consumption, Metabolism and Health Impacts with a Focus on the Development of Substance Use Disorder: A Narrative Review. Nutrients 2022; 14:nu14142940. [PMID: 35889898 PMCID: PMC9323357 DOI: 10.3390/nu14142940] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 07/13/2022] [Accepted: 07/15/2022] [Indexed: 01/01/2023] Open
Abstract
Carbohydrates are important macronutrients in human and rodent diet patterns that play a key role in crucial metabolic pathways and provide the necessary energy for proper body functioning. Sugar homeostasis and intake require complex hormonal and nervous control to proper body energy balance. Added sugar in processed food results in metabolic, cardiovascular, and nervous disorders. Epidemiological reports have shown enhanced consumption of sweet products in children and adults, especially in reproductive age and in pregnant women, which can lead to the susceptibility of offspring’s health to diseases in early life or in adulthood and proneness to mental disorders. In this review, we discuss the impacts of high-sugar diet (HSD) or sugar intake during the perinatal and/or postnatal periods on neural and behavioural disturbances as well as on the development of substance use disorder (SUD). Since several emotional behavioural disturbances are recognized as predictors of SUD, we also present how HSD enhances impulsive behaviour, stress, anxiety and depression. Apart from the influence of HSD on these mood disturbances, added sugar can render food addiction. Both food and addictive substances change the sensitivity of the brain rewarding neurotransmission signalling. The results of the collected studies could be important in assessing sugar intake, especially via maternal dietary patterns, from the clinical perspective of SUD prevention or pre-existing emotional disorders. Methodology: This narrative review focuses on the roles of a high-sugar diet (HSD) and added sugar in foods and on the impacts of glucose and fructose on the development of substance use disorder (SUD) and on the behavioural predictors of drugs abuse. The literature was reviewed by two authors independently according to the topic of the review. We searched the PubMed and Scopus databases and Multidisciplinary Digital Publishing Institute open access scientific journals using the following keyword search strategy depending on the theme of the chapter: “high-sugar diet” OR “high-carbohydrate diet” OR “sugar” OR “glucose” OR “fructose” OR “added sugar” AND keywords. We excluded inaccessible or pay-walled articles, abstracts, conference papers, editorials, letters, commentary, and short notes. Reviews, experimental studies, and epidemiological data, published since 1990s, were searched and collected depending on the chapter structure. After the search, all duplicates are thrown out and full texts were read, and findings were rescreened. After the selection process, appropriate papers were included to present in this review.
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16
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Choi MR, Jin YB, Kim HN, Lee H, Chai YG, Lee SR, Kim DJ. Differential Gene Expression in the Hippocampi of Nonhuman Primates Chronically Exposed to Methamphetamine, Cocaine, or Heroin. Psychiatry Investig 2022; 19:538-550. [PMID: 35903056 PMCID: PMC9334808 DOI: 10.30773/pi.2022.0004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 05/11/2022] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE Methamphetamine (MA), cocaine, and heroin cause severe public health problems as well as impairments in neural plasticity and cognitive function in the hippocampus. This study aimed to identify the genes differentially expressed in the hippocampi of cynomolgus monkeys in response to these drugs. METHODS After the monkeys were chronically exposed to MA, cocaine, and heroin, we performed large-scale gene expression profiling of the hippocampus using RNA-Seq technology and functional annotation of genes differentially expressed. Some genes selected from RNA-Seq analysis data were validated with reverse transcription-quantitative polymerase chain reaction (RT-qPCR). And the expression changes of ADAM10 protein were assessed using immunohistochemistry. RESULTS The changes in genes related to axonal guidance (PTPRP and KAL1), the cell cycle (TLK2), and the regulation of potassium ions (DPP10) in the drug-treated groups compared to the control group were confirmed using RT-qPCR. Comparative analysis of all groups showed that among genes related to synaptic long-term potentiation, CREBBP and GRIN3A were downregulated in both the MA- and heroin-treated groups compared to the control group. In particular, the mRNA and protein expression levels of ADAM10 were decreased in the MA-treated group but increased in the cocaine-treated group compared to the control group. CONCLUSION These results provide insights into the genes that are upregulated and downregulated in the hippocampus by the chronic administration of MA, cocaine, or heroin and basic information for developing novel drugs for the treatment of hippocampal impairments caused by drug abuse.
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Affiliation(s)
- Mi Ran Choi
- Laboratory Animal Research Center, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Yeung-Bae Jin
- Department of Laboratory Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, Republic of Korea
| | - Han-Na Kim
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
| | - Heejin Lee
- Department of Psychiatry, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Republic of Korea
| | - Young Gyu Chai
- Department of Molecular and Life Sciences, Hanyang University, Ansan, Republic of Korea
| | - Sang-Rae Lee
- Laboratory Animal Research Center, Ajou University School of Medicine, Suwon, Republic of Korea.,Department of Pharmacology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Dai-Jin Kim
- Department of Psychiatry, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Republic of Korea
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17
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Deng B, Zhang Z, Zhou H, Zhang X, Niu S, Yan X, Yan J. MicroRNAs in Methamphetamine-Induced Neurotoxicity and Addiction. Front Pharmacol 2022; 13:875666. [PMID: 35496314 PMCID: PMC9046672 DOI: 10.3389/fphar.2022.875666] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 03/31/2022] [Indexed: 12/21/2022] Open
Abstract
Methamphetamine (METH) abuse remains a significant public health concern globally owing to its strong addictive properties. Prolonged abuse of the drug causes irreversible damage to the central nervous system. To date, no efficient pharmacological interventions are available, primarily due to the unclear mechanisms underlying METH action in the brain. Recently, microRNAs (miRNAs) have been identified to play critical roles in various cellular processes. The expression levels of some miRNAs are altered after METH administration, which may influence the transcription of target genes to regulate METH toxicity or addiction. This review summarizes the miRNAs in the context of METH use, discussing their role in the reward effect and neurotoxic sequelae. Better understanding of the molecular mechanisms involved in METH would be helpful for the development of new therapeutic strategies in reducing the harm of the drug.
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Affiliation(s)
- Bi Deng
- Department of Forensic Science, School of Basic Medical Science, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Zhirui Zhang
- Department of Forensic Science, School of Basic Medical Science, Central South University, Changsha, China
| | - Huixuan Zhou
- Department of Forensic Science, School of Basic Medical Science, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Xinran Zhang
- Department of Forensic Science, School of Basic Medical Science, Central South University, Changsha, China
| | - Shuliang Niu
- School of Basic Medical Science, Xinjiang Medical University, Urumqi, China
| | - Xisheng Yan
- Department of Cardiovascular Medicine, Wuhan Third Hospital and Tongren Hospital of Wuhan University, Wuhan, China
| | - Jie Yan
- Department of Forensic Science, School of Basic Medical Science, Central South University, Changsha, China
- School of Basic Medical Science, Xinjiang Medical University, Urumqi, China
- *Correspondence: Jie Yan,
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18
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De Sa Nogueira D, Bourdy R, Alcala-Vida R, Filliol D, Andry V, Goumon Y, Zwiller J, Romieu P, Merienne K, Olmstead MC, Befort K. Hippocampal Cannabinoid 1 Receptors Are Modulated Following Cocaine Self-administration in Male Rats. Mol Neurobiol 2022; 59:1896-1911. [PMID: 35032317 DOI: 10.1007/s12035-022-02722-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 12/30/2021] [Indexed: 02/07/2023]
Abstract
Cocaine addiction is a complex pathology inducing long-term neuroplastic changes that, in turn, contribute to maladaptive behaviors. This behavioral dysregulation is associated with transcriptional reprogramming in brain reward circuitry, although the mechanisms underlying this modulation remain poorly understood. The endogenous cannabinoid system may play a role in this process in that cannabinoid mechanisms modulate drug reward and contribute to cocaine-induced neural adaptations. In this study, we investigated whether cocaine self-administration induces long-term adaptations, including transcriptional modifications and associated epigenetic processes. We first examined endocannabinoid gene expression in reward-related brain regions of the rat following self-administered (0.33 mg/kg intravenous, FR1, 10 days) cocaine injections. Interestingly, we found increased Cnr1 expression in several structures, including prefrontal cortex, nucleus accumbens, dorsal striatum, hippocampus, habenula, amygdala, lateral hypothalamus, ventral tegmental area, and rostromedial tegmental nucleus, with most pronounced effects in the hippocampus. Endocannabinoid levels, measured by mass spectrometry, were also altered in this structure. Chromatin immunoprecipitation followed by qPCR in the hippocampus revealed that two activating histone marks, H3K4Me3 and H3K27Ac, were enriched at specific endocannabinoid genes following cocaine intake. Targeting CB1 receptors using chromosome conformation capture, we highlighted spatial chromatin re-organization in the hippocampus, as well as in the nucleus accumbens, suggesting that destabilization of the chromatin may contribute to neuronal responses to cocaine. Overall, our results highlight a key role for the hippocampus in cocaine-induced plasticity and broaden the understanding of neuronal alterations associated with endocannabinoid signaling. The latter suggests that epigenetic modifications contribute to maladaptive behaviors associated with chronic drug use.
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Affiliation(s)
- David De Sa Nogueira
- Laboratoire de Neurosciences Cognitives Et Adaptatives (LNCA), Centre de La Recherche Nationale Scientifique, Université de Strasbourg, 12 rue Goethe, 67000, Strasbourg, France.,Brain Health Institute, Rutgers University and Rutgers Biomedical and Health Sciences, 683 Hoes Lane West, Piscataway, NJ, 08854, USA
| | - Romain Bourdy
- Laboratoire de Neurosciences Cognitives Et Adaptatives (LNCA), Centre de La Recherche Nationale Scientifique, Université de Strasbourg, 12 rue Goethe, 67000, Strasbourg, France
| | - Rafael Alcala-Vida
- Laboratoire de Neurosciences Cognitives Et Adaptatives (LNCA), Centre de La Recherche Nationale Scientifique, Université de Strasbourg, 12 rue Goethe, 67000, Strasbourg, France
| | - Dominique Filliol
- Laboratoire de Neurosciences Cognitives Et Adaptatives (LNCA), Centre de La Recherche Nationale Scientifique, Université de Strasbourg, 12 rue Goethe, 67000, Strasbourg, France
| | - Virginie Andry
- Institut Des Neurosciences Cellulaires Et Intégratives (INCI), UPR 3212, CNRS, 8 Allée du Général Rouvillois, 67000, Strasbourg, France
| | - Yannick Goumon
- Institut Des Neurosciences Cellulaires Et Intégratives (INCI), UPR 3212, CNRS, 8 Allée du Général Rouvillois, 67000, Strasbourg, France
| | - Jean Zwiller
- Laboratoire de Neurosciences Cognitives Et Adaptatives (LNCA), Centre de La Recherche Nationale Scientifique, Université de Strasbourg, 12 rue Goethe, 67000, Strasbourg, France
| | - Pascal Romieu
- Laboratoire de Neurosciences Cognitives Et Adaptatives (LNCA), Centre de La Recherche Nationale Scientifique, Université de Strasbourg, 12 rue Goethe, 67000, Strasbourg, France
| | - Karine Merienne
- Laboratoire de Neurosciences Cognitives Et Adaptatives (LNCA), Centre de La Recherche Nationale Scientifique, Université de Strasbourg, 12 rue Goethe, 67000, Strasbourg, France
| | - Mary C Olmstead
- Department of Psychology, Center for Neuroscience Studies, Queen's University, Kingston, ON, K7L 3N6, Canada
| | - Katia Befort
- Laboratoire de Neurosciences Cognitives Et Adaptatives (LNCA), Centre de La Recherche Nationale Scientifique, Université de Strasbourg, 12 rue Goethe, 67000, Strasbourg, France.
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19
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Rabin RA, Mackey S, Parvaz MA, Cousijn J, Li C, Pearlson G, Schmaal L, Sinha R, Stein E, Veltman D, Thompson PM, Conrod P, Garavan H, Alia‐Klein N, Goldstein RZ. Common and gender-specific associations with cocaine use on gray matter volume: Data from the ENIGMA addiction working group. Hum Brain Mapp 2022; 43:543-554. [PMID: 32857473 PMCID: PMC8675419 DOI: 10.1002/hbm.25141] [Citation(s) in RCA: 8] [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: 04/12/2020] [Revised: 06/26/2020] [Accepted: 07/10/2020] [Indexed: 11/30/2022] Open
Abstract
Gray matter volume (GMV) in frontal cortical and limbic regions is susceptible to cocaine-associated reductions in cocaine-dependent individuals (CD) and is negatively associated with duration of cocaine use. Gender differences in CD individuals have been reported clinically and in the context of neural responses to cue-induced craving and stress reactivity. The variability of GMV in select brain areas between men and women (e.g., limbic regions) underscores the importance of exploring interaction effects between gender and cocaine dependence on brain structure. Therefore, voxel-based morphometry data derived from the ENIGMA Addiction Consortium were used to investigate potential gender differences in GMV in CD individuals compared to matched controls (CTL). T1-weighted MRI scans and clinical data were pooled from seven sites yielding 420 gender- and age-matched participants: CD men (CDM, n = 140); CD women (CDW, n = 70); control men (CTLM, n = 140); and control women (CTLW, n = 70). Differences in GMV were assessed using a 2 × 2 ANCOVA, and voxelwise whole-brain linear regressions were conducted to explore relationships between GMV and duration of cocaine use. All analyses were corrected for age, total intracranial volume, and site. Diagnostic differences were predominantly found in frontal regions (CD < CTL). Interestingly, gender × diagnosis interactions in the left anterior insula and left lingual gyrus were also documented, driven by differences in women (CDW < CTLW). Further, lower right hippocampal GMV was associated with greater cocaine duration in CDM. Given the importance of the anterior insula to interoception and the hippocampus to learning contextual associations, results may point to gender-specific mechanisms in cocaine addiction.
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Affiliation(s)
- Rachel A. Rabin
- Department of PsychiatryIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Scott Mackey
- Departments of Psychiatry and PsychologyUniversity of VermontBurlingtonVermontUSA
| | - Muhammad A. Parvaz
- Department of PsychiatryIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
- Department of NeuroscienceIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Janna Cousijn
- Department of PsychologyUniversity of AmsterdamAmsterdamThe Netherlands
| | - Chiang‐shan Li
- Department of PsychiatryYale University School of MedicineNew HavenConnecticutUSA
| | - Godfrey Pearlson
- Department of PsychiatryYale University School of MedicineNew HavenConnecticutUSA
| | - Lianne Schmaal
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Australia and Centre for Youth Mental HealthThe University of MelbourneMelbourneAustralia
| | - Rajita Sinha
- Department of PsychiatryYale University School of MedicineNew HavenConnecticutUSA
| | - Elliot Stein
- Intramural Research Program—Neuroimaging Research BranchNational Institute on Drug AbuseBaltimoreMarylandUSA
| | - Dick Veltman
- Department of PsychiatryVU University Medical CenterAmsterdamThe Netherlands
| | - Paul M. Thompson
- Imaging Genetics Center, Department of Neurology Keck School of MedicineUniversity of Southern CaliforniaMarina del ReyCaliforniaUSA
| | - Patricia Conrod
- Department of PsychiatryUniversité de Montreal, CHU Ste Justine HospitalMontrealQuebecCanada
| | - Hugh Garavan
- Departments of Psychiatry and PsychologyUniversity of VermontBurlingtonVermontUSA
| | - Nelly Alia‐Klein
- Department of PsychiatryIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
- Department of NeuroscienceIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Rita Z. Goldstein
- Department of PsychiatryIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
- Department of NeuroscienceIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
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20
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Cabana-Domínguez J, Martín-García E, Gallego-Roman A, Maldonado R, Fernàndez-Castillo N, Cormand B. Reduced cue-induced reinstatement of cocaine-seeking behavior in Plcb1 +/- mice. Transl Psychiatry 2021; 11:521. [PMID: 34635637 PMCID: PMC8505421 DOI: 10.1038/s41398-021-01396-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 03/24/2021] [Accepted: 04/20/2021] [Indexed: 11/28/2022] Open
Abstract
Cocaine addiction causes serious health problems, and no effective treatment is available yet. We previously identified a genetic risk variant for cocaine addiction in the PLCB1 gene and found this gene upregulated in postmortem brains of cocaine abusers and in human dopaminergic neuron-like cells after an acute cocaine exposure. Here, we functionally tested the contribution of the PLCB1 gene to cocaine addictive properties using Plcb1+/- mice. First, we performed a general phenotypic characterization and found that Plcb1+/- mice showed normal behavior, although they had increased anxiety and impaired short-term memory. Subsequently, mice were trained for operant conditioning, self-administered cocaine for 10 days, and were tested for cocaine motivation. After extinction, we found a reduction in the cue-induced reinstatement of cocaine-seeking behavior in Plcb1+/- mice. After reinstatement, we identified transcriptomic alterations in the medial prefrontal cortex of Plcb1+/- mice, mostly related to pathways relevant to addiction like the dopaminergic synapse and long-term potentiation. To conclude, we found that heterozygous deletion of the Plcb1 gene decreases cue-induced reinstatement of cocaine-seeking, pointing at PLCB1 as a possible therapeutic target for preventing relapse and treating cocaine addiction.
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Affiliation(s)
- Judit Cabana-Domínguez
- grid.5841.80000 0004 1937 0247Department de Genètica, Microbiologia i Estadística, Facultat de Biologia, Universitat de Barcelona, Barcelona, Catalonia Spain ,grid.452372.50000 0004 1791 1185Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain ,grid.5841.80000 0004 1937 0247Institut de Biomedicina de la Universitat de Barcelona (IBUB), Barcelona, Catalonia Spain ,grid.411160.30000 0001 0663 8628Institut de Recerca Sant Joan de Déu (IR-SJD), Barcelona, Catalonia Spain
| | - Elena Martín-García
- grid.5612.00000 0001 2172 2676Laboratory of Neuropharmacology-Neurophar, Department of Experimental and Health Sciences, Universitat Pompeu Fabra (UPF), Barcelona, Catalonia Spain ,grid.20522.370000 0004 1767 9005Hospital del Mar Medical Research Institute (IMIM), Barcelona, Catalonia Spain
| | - Ana Gallego-Roman
- grid.5612.00000 0001 2172 2676Laboratory of Neuropharmacology-Neurophar, Department of Experimental and Health Sciences, Universitat Pompeu Fabra (UPF), Barcelona, Catalonia Spain
| | - Rafael Maldonado
- grid.5612.00000 0001 2172 2676Laboratory of Neuropharmacology-Neurophar, Department of Experimental and Health Sciences, Universitat Pompeu Fabra (UPF), Barcelona, Catalonia Spain ,grid.20522.370000 0004 1767 9005Hospital del Mar Medical Research Institute (IMIM), Barcelona, Catalonia Spain
| | - Noèlia Fernàndez-Castillo
- Department de Genètica, Microbiologia i Estadística, Facultat de Biologia, Universitat de Barcelona, Barcelona, Catalonia, Spain. .,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain. .,Institut de Biomedicina de la Universitat de Barcelona (IBUB), Barcelona, Catalonia, Spain. .,Institut de Recerca Sant Joan de Déu (IR-SJD), Barcelona, Catalonia, Spain.
| | - Bru Cormand
- Department de Genètica, Microbiologia i Estadística, Facultat de Biologia, Universitat de Barcelona, Barcelona, Catalonia, Spain. .,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain. .,Institut de Biomedicina de la Universitat de Barcelona (IBUB), Barcelona, Catalonia, Spain. .,Institut de Recerca Sant Joan de Déu (IR-SJD), Barcelona, Catalonia, Spain.
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21
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Che X, Bai Y, Cai J, Liu Y, Li Y, Yin M, Xu T, Wu C, Yang J. Hippocampal neurogenesis interferes with extinction and reinstatement of methamphetamine-associated reward memory in mice. Neuropharmacology 2021; 196:108717. [PMID: 34273388 DOI: 10.1016/j.neuropharm.2021.108717] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 06/30/2021] [Accepted: 07/11/2021] [Indexed: 12/16/2022]
Abstract
Drugs of abuse, including morphine and cocaine, can reduce hippocampal neurogenesis (HN). Whereas promotion of HN is being increasingly recognized as a promising strategy for treating morphine and cocaine addiction. The present study is focused on exploring the changes of HN during methamphetamine (METH) administration and further clarify if HN is involved in METH-associated reward memory. After successfully establishing the conditioned place preference (CPP) paradigm to simulate the METH-associated reward memory in C57BL/6 mice, we observed that HN was significantly inhibited during METH (2 mg/kg, i. p.) administration and returned to normal after the extinction of METH CPP, as indicated by the immunostaining of bromodeoxyuridine (BrdU) and doublecortin (DCX) in the hippocampus. To promote/inhibit HN levels, 7,8-dihydroxyflavone (DHF), a small tyrosine kinase receptor B (TrkB) agonist and temozolomide (TMZ), an alkylating agent, were administered intraperitoneally (i.p.), respectively. The data showed that either DHF (5 mg/kg, i. p.) or TMZ (25 mg/kg, i. p.) pre-treatment before METH administration could significantly prolong extinction and enhance reinstatement of the reward memory. Notably, DHF treatment after METH administration significantly facilitated extinction and inhibited METH reinstatement, while TMZ treatment resulted in opposite effects. The present study indicated that METH administration could induce a temporal inhibitory effect on HN. More importantly, promotion of HN after the acquisition of METH-associated reward memory, but not inhibition of HN or promotion of HN before the acquisition of reward memory, could facilitate METH extinction and inhibit METH reinstatement, indicating the beneficial effect of HN on METH addiction by erasing the according reward memory.
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Affiliation(s)
- Xiaohang Che
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Yijun Bai
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Jialing Cai
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Yueyang Liu
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Yuting Li
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Meixue Yin
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Tianyu Xu
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Chunfu Wu
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, PR China.
| | - Jingyu Yang
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, PR China.
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22
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Chen Z, Becker B, Qin P, Lei W, Chen J, Liu P, Lin T, Zhang C, Zhang R, Wang M, Xu T, Yang Y, Feng P, Feng T. Neural networks during delay discounting as trans-disease marker: A meta-analytical review. J Psychiatr Res 2021; 139:62-70. [PMID: 34044265 DOI: 10.1016/j.jpsychires.2021.05.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 04/13/2021] [Accepted: 05/01/2021] [Indexed: 11/30/2022]
Abstract
Delay discounting reflects a devaluation of delayed long-term benefits but pursuing immediate rewards. Higher discounting rates (h-DR) are found ubiquitous in many diseases and unhealthy conditions, particularly in addiction disorder (AD), attention-deficit/hyperactivity disorder (ADHD), and obesity. Thus, h-DR was considered to be a common benchmark across many diseases facilitating to understand one disease to relevant others, which was called trans-disease process. However, the common and specific neural biomarkers associated with this process has not yet been studied well. We performed a voxel-wise task-related neuroimaging meta-analysis to clarify the neural pattern of trans-disease process across AD, ADHD and obesity. We recruited 19 eligible papers, including 9 AD papers (154 patients), 6 ADHD papers (106 patients) and 4 obesity studies (94 patients). Neuroimaging meta-analysis demonstrated the presence of neural biomarkers of trans-disease process: these patients showed inadequate brain response in caudate, ventromedial and dorsolateral prefrontal cortex (dlPFC) than do of healthy controls (HCs). Disease-specific neural patterns were also found, with prominent hypoactivation in parahippocampal-striatum network for AD, hyperactivation in dopamine-projection striatum network for ADHD and decreased activity in dorsal anterior cingulate cortex and dlPFC for obesity. This study provided robust evidence to reveal the neural substrates of trans-disease process, as well further promoted the triple brain network model in favor of the theoretical developments of these neuropsychiatric disorders.
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Affiliation(s)
- Zhiyi Chen
- Faculty of Psychology, Southwest University, Chongqing, China; Key Laboratory of Cognition and Personality, Ministry of Education, China
| | - Benjamin Becker
- The Clinical Hospital of the Chengdu Brain Science Institute, Key Laboratory for Neuroinformation, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Pengmin Qin
- Center for Studies of Psychological Applications, Guangdong Key Laboratory of Mental Health and Cognitive Science, School of Psychology, South China Normal University, Guangzhou, Guangdong, China
| | - Wei Lei
- Psychiatry Department, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Jing Chen
- Psychiatry Department, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Peiwei Liu
- Department of Psychology, University of Florida, Gainesville, USA
| | - Tian Lin
- Department of Psychology, University of Florida, Gainesville, USA
| | - Chenyan Zhang
- Cognitive Psychology Unit, The Institute of Psychology, Faculty of Social and Behavioural Sciences, Leiden University, Leiden, Netherlands
| | - Rong Zhang
- Faculty of Psychology, Southwest University, Chongqing, China
| | - Mengmeng Wang
- School of Business and Management, Shanghai International Studies University, China
| | - Ting Xu
- Faculty of Psychology, Southwest University, Chongqing, China
| | - Yaqi Yang
- Faculty of Psychology, Southwest University, Chongqing, China
| | - Pan Feng
- Faculty of Psychology, Southwest University, Chongqing, China; Key Laboratory of Cognition and Personality, Ministry of Education, China
| | - Tingyong Feng
- Faculty of Psychology, Southwest University, Chongqing, China; Key Laboratory of Cognition and Personality, Ministry of Education, China.
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23
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4R Tau Modulates Cocaine-Associated Memory through Adult Dorsal Hippocampal Neurogenesis. J Neurosci 2021; 41:6753-6774. [PMID: 34099513 DOI: 10.1523/jneurosci.2848-20.2021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 04/28/2021] [Accepted: 05/25/2021] [Indexed: 02/05/2023] Open
Abstract
The development, persistence and relapse of drug addiction require drug memory that generally develops with drug administration-paired contextual stimuli. Adult hippocampal neurogenesis (AHN) contributes to cocaine memory formation; however, the underlying mechanism remains unclear. Male mice hippocampal expression of Tau was significantly decreased during the cocaine-associated memory formation. Genetic overexpression of four microtubule-binding repeats Tau (4R Tau) in the mice hippocampus disrupted cocaine memory by suppressing AHN. Furthermore, 4R Tau directly interacted with phosphoinositide 3-kinase (PI3K)-p85 and impaired its nuclear translocation and PI3K-AKT signaling, processes required for hippocampal neuron proliferation. Collectively, 4R Tau modulates cocaine memory formation by disrupting AHN, suggesting a novel mechanism underlying cocaine memory formation and provide a new strategy for the treatment of cocaine addiction.SIGNIFICANCE STATEMENT Drug memory that generally develops with drug-paired contextual stimuli and drug administration is critical for the development, persistence and relapse of drug addiction. Previous studies have suggested that adult hippocampal neurogenesis (AHN) plays a role in cocaine memory formation. Here, we showed that Tau was significantly downregulated in the hippocampus in the cocaine memory formation. Tau knock-out (KO) promoted AHN in the hippocampal dentate gyrus (DG), resulting in the enhanced memory formation evoked by cocaine-cue stimuli. In contrast, genetically overexpressed 4R Tau in the hippocampus disrupted cocaine-cue memory by suppressing AHN. In addition, 4R Tau interacted directly with phosphoinositide 3-kinase (PI3K)-p85 and hindered its nuclear translocation, eventually repressing PI3K-AKT signaling, which is essential for hippocampal neuronal proliferation.
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24
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Navarrete F, García-Gutiérrez MS, Gasparyan A, Austrich-Olivares A, Manzanares J. Role of Cannabidiol in the Therapeutic Intervention for Substance Use Disorders. Front Pharmacol 2021; 12:626010. [PMID: 34093179 PMCID: PMC8173061 DOI: 10.3389/fphar.2021.626010] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 05/04/2021] [Indexed: 01/04/2023] Open
Abstract
Drug treatments available for the management of substance use disorders (SUD) present multiple limitations in efficacy, lack of approved treatments or alarming relapse rates. These facts hamper the clinical outcome and the quality of life of the patients supporting the importance to develop new pharmacological agents. Lately, several reports suggest that cannabidiol (CBD) presents beneficial effects relevant for the management of neurological disorders such as epilepsy, multiple sclerosis, Parkinson’s, or Alzheimer’s diseases. Furthermore, there is a large body of evidence pointing out that CBD improves cognition, neurogenesis and presents anxiolytic, antidepressant, antipsychotic, and neuroprotective effects suggesting potential usefulness for the treatment of neuropsychiatric diseases and SUD. Here we review preclinical and clinical reports regarding the effects of CBD on the regulation of the reinforcing, motivational and withdrawal-related effects of different drugs of abuse such as alcohol, opioids (morphine, heroin), cannabinoids, nicotine, and psychostimulants (cocaine, amphetamine). Furthermore, a special section of the review is focused on the neurobiological mechanisms that might be underlying the ‘anti-addictive’ action of CBD through the regulation of dopaminergic, opioidergic, serotonergic, and endocannabinoid systems as well as hippocampal neurogenesis. The multimodal pharmacological profile described for CBD and the specific regulation of addictive behavior-related targets explains, at least in part, its therapeutic effects on the regulation of the reinforcing and motivational properties of different drugs of abuse. Moreover, the remarkable safety profile of CBD, its lack of reinforcing properties and the existence of approved medications containing this compound (Sativex®, Epidiolex®) increased the number of studies suggesting the potential of CBD as a therapeutic intervention for SUD. The rising number of publications with substantial results on the valuable therapeutic innovation of CBD for treating SUD, the undeniable need of new therapeutic agents to improve the clinical outcome of patients with SUD, and the upcoming clinical trials involving CBD endorse the relevance of this review.
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Affiliation(s)
- Francisco Navarrete
- Instituto de Neurociencias, Universidad Miguel Hernández-CSIC, San Juan de Alicante, Spain.,Red Temática de Investigación Cooperativa en Salud (RETICS), Red de Trastornos Adictivos, Instituto de Salud Carlos III, MICINN and FEDER, Madrid, Spain
| | - María Salud García-Gutiérrez
- Instituto de Neurociencias, Universidad Miguel Hernández-CSIC, San Juan de Alicante, Spain.,Red Temática de Investigación Cooperativa en Salud (RETICS), Red de Trastornos Adictivos, Instituto de Salud Carlos III, MICINN and FEDER, Madrid, Spain
| | - Ani Gasparyan
- Instituto de Neurociencias, Universidad Miguel Hernández-CSIC, San Juan de Alicante, Spain.,Red Temática de Investigación Cooperativa en Salud (RETICS), Red de Trastornos Adictivos, Instituto de Salud Carlos III, MICINN and FEDER, Madrid, Spain
| | | | - Jorge Manzanares
- Instituto de Neurociencias, Universidad Miguel Hernández-CSIC, San Juan de Alicante, Spain.,Red Temática de Investigación Cooperativa en Salud (RETICS), Red de Trastornos Adictivos, Instituto de Salud Carlos III, MICINN and FEDER, Madrid, Spain
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25
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Cocaine use disorder: A look at metabotropic glutamate receptors and glutamate transporters. Pharmacol Ther 2021; 221:107797. [DOI: 10.1016/j.pharmthera.2020.107797] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 11/04/2020] [Indexed: 01/08/2023]
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26
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Wang S, Zeng M, Ren Y, Han S, Li J, Cui W. In vivo reduction of hippocampal Caveolin-1 by RNA interference alters morphine addiction and neuroplasticity changes in male mice. Neurosci Lett 2021; 749:135742. [PMID: 33607203 DOI: 10.1016/j.neulet.2021.135742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/29/2021] [Accepted: 02/12/2021] [Indexed: 11/29/2022]
Abstract
Prescription opioids are powerful pain-controlling medications that have both benefits and potentially serious risks. Morphine is one of the preferred analgesics that are widely used to treat chronic pain. However, chronic morphine exposure has been found to cause both functional and structural changes in several brain regions, including the medial prefrontal cortex (mPFC), ventral tegmental area (VTA), and hippocampus (HPC), which lead to addictive behavior. Caveolin-1 (Cav-1), a scaffolding protein of membrane lipid rafts (MLRs), has been shown to organize GPCRs and multiple synaptic signaling proteins within the MLRs to regulate synaptic signaling and neuroplasticity. Previously, we showed that in vitro morphine treatment significantly elevates Cav-1 expression and causes neuroplasticity changes. In this study, we confirmed that chronic morphine exposure can significantly increase Cav-1 expression (P < 0.05) and microtubule-associated protein (MAP-2)-positive neuronal dendritic growth in the hippocampus. Moreover, the rewarding effect and dendritic growth in the HPC induced by chronic morphine exposure were significantly inhibited by hippocampal Cav-1 knockdown. Together, these data suggest that Cav-1 in the hippocampus plays an essential role in the neuroplasticity changes that underlie morphine addiction behaviors.
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Affiliation(s)
- Shanshan Wang
- Department of Anesthesiology, Beijing Tian Tan Hospital, Capital Medical University, #119 Nan Si Huan Xi Lu, Beijing, 100050, PR China; Department of Anesthesiology, University of California San Diego, 3350 La Jolla Village Dr., San Diego, CA, 92161, USA
| | - Min Zeng
- Department of Anesthesiology, Beijing Tian Tan Hospital, Capital Medical University, #119 Nan Si Huan Xi Lu, Beijing, 100050, PR China
| | - Yi Ren
- Department of Anesthesiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, #56 Nan Li Shi Lu, Beijing, 100045, PR China
| | - Song Han
- Department of Neurobiology and Beijing Institute for Neuroscience, Capital Medical University, #10 You An Men Wai Xi TouTiao, Beijing, 100069, PR China
| | - Junfa Li
- Department of Neurobiology and Beijing Institute for Neuroscience, Capital Medical University, #10 You An Men Wai Xi TouTiao, Beijing, 100069, PR China
| | - Weihua Cui
- Department of Anesthesiology, Beijing Tian Tan Hospital, Capital Medical University, #119 Nan Si Huan Xi Lu, Beijing, 100050, PR China.
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27
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Blazquez-Llorca L, Miguéns M, Montero-Crespo M, Selvas A, Gonzalez-Soriano J, Ambrosio E, DeFelipe J. 3D Synaptic Organization of the Rat CA1 and Alterations Induced by Cocaine Self-Administration. Cereb Cortex 2021; 31:1927-1952. [PMID: 33253368 PMCID: PMC7945021 DOI: 10.1093/cercor/bhaa331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 09/10/2020] [Accepted: 10/12/2020] [Indexed: 12/24/2022] Open
Abstract
The hippocampus plays a key role in contextual conditioning and has been proposed as an important component of the cocaine addiction brain circuit. To gain knowledge about cocaine-induced alterations in this circuit, we used focused ion beam milling/scanning electron microscopy to reveal and quantify the three-dimensional synaptic organization of the neuropil of the stratum radiatum of the rat CA1, under normal circumstances and after cocaine-self administration (SA). Most synapses are asymmetric (excitatory), macular-shaped, and in contact with dendritic spine heads. After cocaine-SA, the size and the complexity of the shape of both asymmetric and symmetric (inhibitory) synapses increased but no changes were observed in the synaptic density. This work constitutes the first detailed report on the 3D synaptic organization in the stratum radiatum of the CA1 field of cocaine-SA rats. Our data contribute to the elucidation of the normal and altered synaptic organization of the hippocampus, which is crucial for better understanding the neurobiological mechanisms underlying cocaine addiction.
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Affiliation(s)
- L Blazquez-Llorca
- Departamento de Psicobiología, Facultad de Psicología, Universidad Nacional de Educación a Distancia (UNED), 28040 Madrid, Spain.,Laboratorio Cajal de Circuitos Corticales, Centro de Tecnología Biomédica, Universidad Politécnica de Madrid, 28223 Madrid, Spain.,Sección Departamental de Anatomía y Embriología (Veterinaria), Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - M Miguéns
- Departamento de Psicología Básica I, Facultad de Psicología, Universidad Nacional de Educación a Distancia (UNED), 28040 Madrid, Spain
| | - M Montero-Crespo
- Laboratorio Cajal de Circuitos Corticales, Centro de Tecnología Biomédica, Universidad Politécnica de Madrid, 28223 Madrid, Spain.,Instituto Cajal, Consejo Superior de Investigaciones Científicas, 28002 Madrid, Spain
| | - A Selvas
- Departamento de Psicobiología, Facultad de Psicología, Universidad Nacional de Educación a Distancia (UNED), 28040 Madrid, Spain
| | - J Gonzalez-Soriano
- Sección Departamental de Anatomía y Embriología (Veterinaria), Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - E Ambrosio
- Departamento de Psicobiología, Facultad de Psicología, Universidad Nacional de Educación a Distancia (UNED), 28040 Madrid, Spain
| | - J DeFelipe
- Laboratorio Cajal de Circuitos Corticales, Centro de Tecnología Biomédica, Universidad Politécnica de Madrid, 28223 Madrid, Spain.,Instituto Cajal, Consejo Superior de Investigaciones Científicas, 28002 Madrid, Spain
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Noradrenergic correlates of chronic cocaine craving: neuromelanin and functional brain imaging. Neuropsychopharmacology 2021; 46:851-859. [PMID: 33408330 PMCID: PMC8027452 DOI: 10.1038/s41386-020-00937-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 11/18/2020] [Accepted: 11/24/2020] [Indexed: 12/13/2022]
Abstract
Preclinical studies have implicated noradrenergic (NA) dysfunction in cocaine addiction. In particular, the NA system plays a central role in motivated behavior and may partake in the regulation of craving and drug use. Yet, human studies of the NA system are scarce, likely hampered by the difficulty in precisely localizing the locus coeruleus (LC). Here, we used neuromelanin imaging to localize the LC and quantified LC neuromelanin signal (NMS) intensity in 44 current cocaine users (CU; 37 men) and 59 nondrug users (NU; 44 men). We also employed fMRI to investigate cue-induced regional responses and LC functional connectivities, as quantified by generalized psychophysiological interaction (gPPI), in CU. Imaging data were processed by published routines and the findings were evaluated with a corrected threshold. We examined how these neural measures were associated with chronic cocaine craving, as assessed by the Cocaine Craving Questionnaire (CCQ). Compared to NU, CU demonstrated higher LC NMS for all probabilistic thresholds defined of 50-90% of the peak. In contrast, NMS of the ventral tegmental area/substantia nigra (VTA/SN) did not show significant group differences. Drug as compared to neutral cues elicited higher activations of many cortical and subcortical regions, none of which were significantly correlated with CCQ score. Drug vs. neutral cues also elicited "deactivation" of bilateral parahippocampal gyri (PHG) and PHG gPPI with a wide array of cortical and subcortical regions, including the ventral striatum and, with small volume correction, the LC. Less deactivation of the PHG (r = 0.40, p = 0.008) and higher PHG-LC gPPI (r = 0.44, p = 0.003) were positively correlated with the CCQ score. In contrast, PHG-VTA/SN connectivity did not correlate with the CCQ score. Together, chronic cocaine exposure may induce higher NMS intensity, suggesting neurotoxic effects on the LC. The correlation of cue-elicited PHG LC connectivity with CCQ score suggests a noradrenergic correlate of chronic cocaine craving. Potentially compensating for memory functions as in neurodegenerative conditions, cue-elicited PHG LC circuit connectivity plays an ill-adaptive role in supporting cocaine craving.
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Wang L, Long M, Wang M, Peng S, Chen G, Zhou J, Ou C. Trigeminal neuralgia causes neurodegeneration in rats associated with upregulation of the CD95/CD95L pathway. Mol Pain 2021; 16:1744806920908092. [PMID: 32013712 PMCID: PMC7054737 DOI: 10.1177/1744806920908092] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Objectives To explore the effects of trigeminal neuralgia on neurodegeneration
in rats and the underlining mechanism. Methods Sixty adult male Sprague Dawley rats were divided randomly into
Chronic Constriction Injury of the Rat’s Infraorbital Nerve
(ION-CCI) group and sham group (n = 30). Right
suborbital nerve was ligated in ION-CCI group to establish a
trigeminal neuralgia model. In sham group, suborbital nerve was
exposed without ligation. Pain thresholds were measured before
surgery and 1, 7, 15, and 30 days after surgery
(n = 10). Morris water maze tests
(n = 10) were conducted at 1, 15, and
30 days after surgery to evaluate the changes in learning and
memory ability of rats. At 5, 19, and 34 days after surgery,
serum S100β protein concentration and hippocampal Aβ1-42 protein
expression were detected by enzyme-linked immunosorbent assay;
total tau protein expression was detected by Western blotting;
changes of neurons in hippocampus were observed by Nissl
staining; and the expression of ser404p-tau, cluster
of differentiation (CD)95, CD95L, and cleaved caspase-3 proteins
was detected by immunofluorescence and Western blotting. Results Hyperalgesia occurred in ION-CCI group, and mechanical pain
threshold decreased significantly
(P < 0.05). On the 15th and 30th days after
surgery, ION-CCI group showed lower learning and memory ability
than sham group (P < 0.05). Serum S100β
protein concentration, hippocampal A β1-42, and
ser404p-tau protein expression increased in the
ION-CCI group 19 and 34 days after surgery
(P < 0.05), hippocampal CD95 expression
increased in the ION-CCI group after surgery
(P < 0.05), hippocampal CD95L expression
increased at 19 and 34 days after surgery
(P < 0.05), and cleaved caspase-3 expression
increased at 5 and 19 days after surgery
(P < 0.05). Nissl bodies in ION-CCI group
decreased significantly at 15 days after surgery. The expression
of cleaved caspase-3 protein in ION-CCI group was positively
correlated with the expression of CD95 and CD95L
(P < 0.05). Conclusions Trigeminal neuralgia may lead to neuronal inflammation and neuronal
apoptosis associated with upregulation of CD95/CD95L expression,
thus causing neurodegeneration.
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Affiliation(s)
- Lu Wang
- Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, Luzhou, P.R. China.,Laboratory of Anesthesiology, Affiliated Hospital of Southwest Medical University, Luzhou, P.R. China
| | - Menghong Long
- Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, Luzhou, P.R. China.,Laboratory of Anesthesiology, Affiliated Hospital of Southwest Medical University, Luzhou, P.R. China
| | - Maohua Wang
- Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, Luzhou, P.R. China
| | - Shuangchun Peng
- Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, Luzhou, P.R. China.,Laboratory of Anesthesiology, Affiliated Hospital of Southwest Medical University, Luzhou, P.R. China
| | - Guangxiang Chen
- Department of Radiology, The Affiliated Hospital of Southwest Medical University, Luzhou, P.R. China
| | - Jun Zhou
- Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, Luzhou, P.R. China
| | - Cehua Ou
- Pain Department, The Affiliated Hospital of Southwest Medical University, Luzhou, P.R. China
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30
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Zhong H, Xiao R, Ruan R, Liu H, Li X, Cai Y, Zhao J, Fan X. Neonatal curcumin treatment restores hippocampal neurogenesis and improves autism-related behaviors in a mouse model of autism. Psychopharmacology (Berl) 2020; 237:3539-3552. [PMID: 32803366 DOI: 10.1007/s00213-020-05634-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 07/31/2020] [Indexed: 02/07/2023]
Abstract
RATIONALE Autism spectrum disorders (ASDs) are highly prevalent neurodevelopmental disorders characterized by deficits in social communication and interaction, repetitive stereotyped behaviors, and cognitive impairments. Curcumin has been indicated to be neuroprotective against neurological and psychological disorders. However, the role of curcumin in autistic phenotypes remains unclear. OBJECTIVES In the current study, we evaluated the effects of neonatal curcumin treatment on behavior and hippocampal neurogenesis in BTBRT+ltpr3tf/J (BTBR) mice, a model of autism. METHODS C57BL/6J (C57) and BTBR mouse pups were treated with 0.1% dimethyl sulfoxide (DMSO) or curcumin (20 mg/kg) from postnatal day 6 (P6) to P8. Neural progenitor cells (NPCs) in the hippocampal dentate gyrus (DG) were evaluated on P8, and neurogenesis was measured on P24 by immunofluorescence. A battery of behavioral tests was carried out when the mice were 8 weeks of age. RESULTS Neonatal curcumin treatment improved autism-related symptoms in BTBR mice, enhancing sociability, reducing repetitive behaviors, and ameliorating cognitive impairments. Furthermore, the suppression of hippocampal neurogenesis in BTBR mice was greatly rescued after neonatal curcumin treatment, leading to an increase in neurogenic processes and an increase in NPC proliferation concomitant with an expansion of the NPC pool on P8, and NPC differentiation towards the neuronal lineage was promoted in the DG of BTBR mice on P24. CONCLUSIONS Our findings suggest that neonatal curcumin treatment elicits a therapeutic response through the restoration of hippocampal neurogenesis in BTBR mice and thus may represent a promising novel pharmacological strategy for ASD treatment.
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Affiliation(s)
- Hongyu Zhong
- Department of Developmental Neuropsychology, School of Psychology, Third Military Medical University, Chongqing, 400038, China
| | - Rui Xiao
- Department of Developmental Neuropsychology, School of Psychology, Third Military Medical University, Chongqing, 400038, China
| | - Ruotong Ruan
- Department of Developmental Neuropsychology, School of Psychology, Third Military Medical University, Chongqing, 400038, China
| | - Hui Liu
- Department of Developmental Neuropsychology, School of Psychology, Third Military Medical University, Chongqing, 400038, China
| | - Xin Li
- Department of Developmental Neuropsychology, School of Psychology, Third Military Medical University, Chongqing, 400038, China
| | - Yun Cai
- Department of Developmental Neuropsychology, School of Psychology, Third Military Medical University, Chongqing, 400038, China
| | - Jinghui Zhao
- Department of Developmental Neuropsychology, School of Psychology, Third Military Medical University, Chongqing, 400038, China
| | - Xiaotang Fan
- Department of Developmental Neuropsychology, School of Psychology, Third Military Medical University, Chongqing, 400038, China. .,Institute of Brain and Intelligence, Chongqing, 400038, China.
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31
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Rivera P, Aranda J, Alén F, Vargas A, Serrano A, Pavón FJ, Orio L, Rubio L, Moratalla R, de Fonseca FR, Suárez J. Sex-specific behavioral and neurogenic responses to cocaine in mice lacking and blocking dopamine D1 or dopamine D2 receptors. J Comp Neurol 2020; 529:1724-1742. [PMID: 33047300 DOI: 10.1002/cne.25052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 07/21/2020] [Accepted: 10/03/2020] [Indexed: 12/22/2022]
Abstract
Adult neurogenesis in rodents is modulated by dopaminergic signaling and inhibited by cocaine. However, the sex-specific role of dopamine D1 and D2 receptors (D1R, D2R) in the deleterious effect of cocaine on adult neurogenesis has not been described yet. Here, we explored sex differences in (a) cell proliferation (5'-bromo-2'-deoxyuridine [BrdU]), (b) neural precursor (nestin), (c) neuronal phenotype (BrdU/β3-tubulin), and (d) neuronal maturity (NeuN) in the subventricular zone (SVZ) of the lateral ventricles and striatum of mice with genetic deletion (D1-/- , D2-/- ) or pharmacological blockage (SCH23390: 0.1 mg/kg/day/5 days; Raclopride: 0.3 mg/kg/day/5 days) of D1R and D2R, and treated (10 mg/kg/day/5 days) and then challenged (5 mg/kg, 48 hr later) with cocaine. Results indicated that hyperactivity responses to cocaine were absent in D1-/- mice and reduced in SCH23390-treated mice. Activity responses to cocaine were reduced in D2-/- males, but absent in D2-/- females and increased in Raclopride-treated females. D1R deletion blocked the deleterious effect of cocaine on SVZ cell proliferation in males. Cocaine-exposed D1-/- males also had reduced neuronal phenotype of SVZ newborn cells and increased striatal neuronal maturity. D2-/- mice had lower proliferative and neural precursor responses. Cocaine in D2-/- females or coadministered with Raclopride in wild-type females improved SVZ cell proliferation, an effect that positively correlated with plasma brain-derived neurotrophic factor (BDNF) concentrations. In conclusion, the sex-specific D1R and D2R signaling on SVZ cell proliferation, neural progenitor and neuronal maturity is differentially perturbed by cocaine, and BDNF may be required to link D2R to neuroplasticity in cocaine addiction in females.
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Affiliation(s)
- Patricia Rivera
- UGC Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, Universidad de Málaga, Málaga, Spain
| | - Jesús Aranda
- UGC Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, Universidad de Málaga, Málaga, Spain
| | - Francisco Alén
- Departamento de Psicobiología, Universidad Complutense de Madrid, Madrid, Spain
| | - Antonio Vargas
- UGC Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, Universidad de Málaga, Málaga, Spain
| | - Antonia Serrano
- UGC Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, Universidad de Málaga, Málaga, Spain
| | - Francisco Javier Pavón
- UGC Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, Universidad de Málaga, Málaga, Spain.,CIBERCV, Instituto de Salud Carlos III, Madrid, Spain; and UGC Corazón, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Virgen de la Victoria, Universidad de Málaga, Málaga, Spain
| | - Laura Orio
- Departamento de Psicobiología, Universidad Complutense de Madrid, Madrid, Spain
| | - Leticia Rubio
- Departamento de Anatomía Humana y Medicina Legal, Universidad de Málaga, Málaga, Spain
| | - Rosario Moratalla
- Instituto Cajal de Madrid, Consejo Superior de Investigaciones Científica, Madrid, Spain
| | - Fernando Rodríguez de Fonseca
- UGC Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, Universidad de Málaga, Málaga, Spain
| | - Juan Suárez
- UGC Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, Universidad de Málaga, Málaga, Spain
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32
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Bell RP, Towe SL, Lalee Z, Huettel SA, Meade CS. Neural sensitivity to risk in adults with co-occurring HIV infection and cocaine use disorder. COGNITIVE, AFFECTIVE & BEHAVIORAL NEUROSCIENCE 2020; 20:859-872. [PMID: 32648056 PMCID: PMC7773226 DOI: 10.3758/s13415-020-00806-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Persons with co-occurring HIV infection and cocaine use disorder tend to engage in riskier decision-making. However, the neural correlates of sensitivity to risk are not well-characterized in this population. The purpose of this study was to examine the neural interaction effects of HIV infection and cocaine use disorder to sensitivity to risk. The sample included 79 adults who differed on HIV status and cocaine use disorder. During functional magnetic resonance imaging (fMRI), participants completed a Wheel of Fortune (WoF) task that assessed neural activation in response to variations of monetary risk (i.e., lower probability of winning a larger reward). Across groups, neural activation to increasing risk was in cortical and subcortical regions similar to previous investigations using the WoF in nondrug-using populations. Our analyses showed that there was a synergistic effect between HIV infection and cocaine use in the left precuneus/posterior cingulate cortex and hippocampus, and right postcentral gyrus, lateral occipital cortex, cerebellum, and posterior parietal cortex. HIV+ individuals with cocaine use disorder displayed neural hyperactivation to increasing risk that was not observed in the other groups. These results support a synergistic effect of co-occurring HIV infection and cocaine dependence in neural processing of risk probability that may reflect compensation. Future studies can further investigate and validate how neural activation to increasing risk is associated with risk-taking behavior.
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Affiliation(s)
- Ryan P Bell
- Department of Psychiatry & Behavioral Sciences, Duke University School of Medicine, Box 102848, Durham, NC, 27708, USA
| | - Sheri L Towe
- Department of Psychiatry & Behavioral Sciences, Duke University School of Medicine, Box 102848, Durham, NC, 27708, USA
| | - Zahra Lalee
- Duke University Department of Psychology and Neuroscience, Durham, NC, 27708, USA
| | - Scott A Huettel
- Department of Psychiatry & Behavioral Sciences, Duke University School of Medicine, Box 102848, Durham, NC, 27708, USA
- Brain Imaging and Analysis Center, Duke University Medical Center, Durham, NC, 27708, USA
- Duke University Department of Psychology and Neuroscience, Durham, NC, 27708, USA
| | - Christina S Meade
- Department of Psychiatry & Behavioral Sciences, Duke University School of Medicine, Box 102848, Durham, NC, 27708, USA.
- Brain Imaging and Analysis Center, Duke University Medical Center, Durham, NC, 27708, USA.
- Duke University Department of Psychology and Neuroscience, Durham, NC, 27708, USA.
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33
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Contribution of D1R-expressing neurons of the dorsal dentate gyrus and Ca v1.2 channels in extinction of cocaine conditioned place preference. Neuropsychopharmacology 2020; 45:1506-1517. [PMID: 31905369 PMCID: PMC7360569 DOI: 10.1038/s41386-019-0597-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 11/30/2019] [Accepted: 12/19/2019] [Indexed: 12/29/2022]
Abstract
Cocaine-associated contextual cues can trigger relapse behavior by recruiting the hippocampus. Extinction of cocaine-associated contextual memories can reduce cocaine-seeking behavior, however the molecular mechanisms within the hippocampus that underlie contextual extinction behavior and subsequent reinstatement remain poorly understood. Here, we extend our previous findings for a role of Cav1.2 L-type Ca2+ channels in dopamine 1 receptor (D1R)-expressing cells in extinction of cocaine conditioned place preference (CPP) in adult male mice. We report that attenuated cocaine CPP extinction in mice lacking Cav1.2 channels in D1R-expressing cells (D1cre, Cav1.2fl/fl) can be rescued through chemogenetic activation of D1R-expressing cells within the dorsal dentate gyrus (dDG), but not the dorsal CA1 (dCA1). This is supported by the finding that Cav1.2 channels are required in excitatory cells of the dDG, but not in the dCA1, for cocaine CPP extinction. Examination of the role of S1928 phosphorylation of Cav1.2, a protein kinase A (PKA) site using S1928A Cav1.2 phosphomutant mice revealed no extinction deficit, likely due to homeostatic scaling up of extinction-dependent S845 GluA1 phosphorylation in the dDG. However, phosphomutant mice failed to show cocaine-primed reinstatement which can be reversed by chemogenetic manipulation of excitatory cells in the dDG during extinction training. These findings outline an essential role for the interaction between D1R, Cav1.2, and GluA1 signaling in the dDG for extinction of cocaine-associated contextual memories.
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Luján MÁ, Valverde O. The Pro-neurogenic Effects of Cannabidiol and Its Potential Therapeutic Implications in Psychiatric Disorders. Front Behav Neurosci 2020; 14:109. [PMID: 32676014 PMCID: PMC7333542 DOI: 10.3389/fnbeh.2020.00109] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 06/02/2020] [Indexed: 12/20/2022] Open
Abstract
During the last decades, researchers have investigated the functional relevance of adult hippocampal neurogenesis in normal brain function as well as in the pathogenesis of diverse psychiatric conditions. Although the underlying mechanisms of newborn neuron differentiation and circuit integration have yet to be fully elucidated, considerable evidence suggests that the endocannabinoid system plays a pivotal role throughout the processes of adult neurogenesis. Thus, synthetic, and natural cannabinoid compounds targeting the endocannabinoid system have been utilized to modulate the proliferation and survival of neural progenitor cells and immature neurons. Cannabidiol (CBD), a constituent of the Cannabis Sativa plant, interacts with the endocannabinoid system by inhibiting fatty acid amide hydrolase (FAAH) activity (the rate-limiting enzyme for anandamide hydrolysis), allosterically modulating CB1 and CB2 receptors, and activating components of the "extended endocannabinoid system." Congruently, CBD has shown prominent pro-neurogenic effects, and, unlike Δ9-tetrahydrocannabinol, it has the advantage of being devoid of psychotomimetic effects. Here, we first review pre-clinical studies supporting the facilitating effects of CBD on adult hippocampal neurogenesis and available data disclosing cannabinoid mechanisms by which CBD can induce neural proliferation and differentiation. We then review the respective implications for its neuroprotective, anxiolytic, anti-depressant, and anti-reward actions. In conclusion, accumulating evidence reveals that, in rodents, adult neurogenesis is key to understand the behavioral manifestation of symptomatology related to different mental disorders. Hence, understanding how CBD promotes adult neurogenesis in rodents could shed light upon translational therapeutic strategies aimed to ameliorate psychiatric symptomatology dependent on hippocampal function in humans.
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Affiliation(s)
- Miguel Á. Luján
- Neurobiology of Behaviour Research Group (GReNeC—NeuroBio), Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain
| | - Olga Valverde
- Neurobiology of Behaviour Research Group (GReNeC—NeuroBio), Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain
- Neuroscience Research Programme, IMIM-Hospital del Mar Research Institute, Barcelona, Spain
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35
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Caffino L, Mottarlini F, Mingardi J, Zita G, Barbon A, Fumagalli F. Anhedonic-like behavior and BDNF dysregulation following a single injection of cocaine during adolescence. Neuropharmacology 2020; 175:108161. [PMID: 32585251 DOI: 10.1016/j.neuropharm.2020.108161] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/19/2020] [Accepted: 05/23/2020] [Indexed: 12/14/2022]
Abstract
We have previously demonstrated that a single exposure to cocaine during adolescence causes several behavioural and neurobiological changes, highlighting the unique vulnerability of this period of life. The purpose of our work was to investigate whether a single exposure to cocaine during brain development is sufficient to shape a negative emotional state in adolescent rats. A single injection of cocaine during adolescence followed by measurement of sucrose consumption, a measure of anhedonia, identifies two separate groups of rats, i.e. anhedonic (AN) and non anhedonic (NON-AN) rats. AN rats show reduced ability to synthesize, traffic and translate the neurotrophin BDNF at synaptic level, reduced activation of hippocampal BDNF signaling, reduced BDNF plasma levels and a steep rise of corticosterone secretion. Conversely, NON-AN rats exhibit reduced trafficking of BDNF while up-regulating hippocampal BDNF synthesis and stabilizing its downstream signaling with no changes of BDNF and corticosterone plasma levels. Adult rats exposed to cocaine showed no signs of anhedonia, an increase of BDNF both in hippocampus and plasma and decreased levels of corticosterone. In conclusion, our findings reveal a complex central and peripheral dysregulation of BDNF-related mechanisms that instead are preserved in NON-AN rats, suggesting that BDNF modulation dictates behavioural vulnerability vs. resiliency to cocaine-induced anhedonia, a profile uniquely restricted to adolescent rats.
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Affiliation(s)
- Lucia Caffino
- Department of Pharmacological and Biomolecular Sciences, Università Degli Studi di Milano, Via Balzaretti 9, 20133, Milano, Italy
| | - Francesca Mottarlini
- Department of Pharmacological and Biomolecular Sciences, Università Degli Studi di Milano, Via Balzaretti 9, 20133, Milano, Italy
| | - Jessica Mingardi
- Biology and Genetic Division, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Gianmaria Zita
- Dipartimento di Salute Mentale e Dipendenze, ASST Fatebenefratelli-Sacco, Milan, Italy
| | - Alessandro Barbon
- Biology and Genetic Division, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Fabio Fumagalli
- Department of Pharmacological and Biomolecular Sciences, Università Degli Studi di Milano, Via Balzaretti 9, 20133, Milano, Italy.
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36
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Cocaine self-administration differentially activates microglia in the mouse brain. Neurosci Lett 2020; 728:134951. [PMID: 32278944 DOI: 10.1016/j.neulet.2020.134951] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/26/2020] [Accepted: 03/30/2020] [Indexed: 02/04/2023]
Abstract
The evidence showing the involvement of microglial activation in the development of drug addiction remain scarce as microglia have not been systematically investigated in self-administered mice, a gold standard rodent model for drug addiction. Here we established the stable cocaine self-administration mice to examine microglial activation levels in various brain regions related to reward circuitry. Immunostaining for Iba1 showed a significant upregulation of intensity in the striatum but not in the medial prefrontal cortex (mPFc), hippocampus or thalamus. Further validation experiments showed that cocaine self-administered mice had significantly increased mRNA expression of ccl2 and IL1β in the striatum but not the mPFc compared to saline controls. Consistently, we found elevated protein levels of Iba1, CCL2, TLR4 and mature IL1β in the striatum, not in the mPFc of cocaine-receiving mice. In addition, cocaine-stimulated microglia had modified morphology including a reduced number of intersections, a shortened length and number of processes in the NAc. In summary, our results demonstrated that cocaine mediated microglial activation in a region-specific manner in vivo. These findings indicate that microglia could be activated in the early stage of cocaine addiction directly supporting the rationale that dysregulation on neuroimmune signaling is inherently involved in the development of drug addiction.
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Wang Z, Dong H, Du X, Zhang JT, Dong GH. Decreased effective connection from the parahippocampal gyrus to the prefrontal cortex in Internet gaming disorder: A MVPA and spDCM study. J Behav Addict 2020; 9:105-115. [PMID: 32359234 PMCID: PMC8935187 DOI: 10.1556/2006.2020.00012] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVES Understanding the neural mechanisms underlying Internet gaming disorder (IGD) is essential for the condition's diagnosis and treatment. Nevertheless, the pathological mechanisms of IGD remain elusive at present. Hence, we employed multi-voxel pattern analysis (MVPA) and spectral dynamic causal modeling (spDCM) to explore this issue. METHODS Resting-state fMRI data were collected from 103 IGD subjects (male = 57) and 99 well-matched recreational game users (RGUs, male = 51). Regional homogeneity was calculated as the feature for MVPA based on the support vector machine (SVM) with leave-one- out cross-validation. Mean time series data extracted from the brain regions in accordance with the MVPA results were used for further spDCM analysis. RESULTS Results display a high accuracy of 82.67% (sensitivity of 83.50% and specificity of 81.82%) in the classification of the two groups. The most discriminative brain regions that contributed to the classification were the bilateral parahippocampal gyrus (PG), right anterior cingulate cortex (ACC), and middle frontal gyrus (MFG). Significant correlations were found between addiction severity (IAT and DSM scores) and the ReHo values of the brain regions that contributed to the classification. Moreover, the results of spDCM showed that compared with RGU, IGD showed decreased effective connectivity from the left PG to the right MFG and from the right PG to the ACC and decreased self-connection in the right PG. CONCLUSIONS These results show that the weakening of the PG and its connection with the prefrontal cortex, including the ACC and MFG, may be an underlying mechanism of IGD.
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Affiliation(s)
- Ziliang Wang
- State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, PR China,Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang Province, PR China
| | - Haohao Dong
- Department of Psychology, Zhejiang Normal University, Jinhua, PR China
| | - Xiaoxia Du
- Department of Physics, Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai, PR China
| | - Jin-Tao Zhang
- State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, PR China,Corresponding author. Tel./fax: +86 10 58800728. E-mail:
| | - Guang-Heng Dong
- Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang Province, PR China,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, Zhejiang Province, PR China,Corresponding author. Center for Cognition and Brain Disorders, Hangzhou Normal University, Hangzhou, Zhejiang Province, P.R. China. Tel.: +86 15 867949909. E-mail:
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Huggett SB, Stallings MC. Cocaine'omics: Genome-wide and transcriptome-wide analyses provide biological insight into cocaine use and dependence. Addict Biol 2020; 25:e12719. [PMID: 30734435 DOI: 10.1111/adb.12719] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 01/07/2019] [Accepted: 01/08/2019] [Indexed: 12/21/2022]
Abstract
We investigated the genetic and molecular architecture of cocaine dependence (CD) and cocaine use by integrating genome-/transcriptome-wide analyses. To prioritize candidates for follow-up investigation, we also sought to translate gene expression findings across species. Using data from the largest genome-wide association study (GWAS) of CD to date (n = 3176, 74% with CD), we assessed genomic heritability, gene-based associations, and tissue enrichment. We detected a significant single-nucleotide polymorphism heritability of 28% for CD and identified three genes (two loci) underlying this predisposition: the C1qL2 (complement component C1 q like 2), KCTD20 (potassium channel tetramerization domain containing 20), and STK38 (serine/threonine kinase 38) genes. Tissue enrichment analyses indicated robust enrichment in numerous brain regions, including the hippocampus. We used postmortem human hippocampal RNA-sequencing data from previous study (n = 15, seven chronic cocaine users) to follow up genome-wide results and to identify differentially expressed genes/transcripts and gene networks underlying cocaine use. Cross-species analyses utilized hippocampal gene expression from a mouse model of cocaine use. Differentially expressed genes/transcripts in humans were enriched for the genes nominally associated with CD via GWAS (P < 0.05) and for differentially expressed genes in the hippocampus of cocaine-exposed mice. We identified KCTD20 as a central component of a hippocampal gene network strongly associated with human cocaine use, and this gene network was conserved in the mouse hippocampus. We outline a framework to map and translate genome-wide findings onto tissue-specific gene expression, which provided biological insight into cocaine use/dependence.
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Affiliation(s)
- Spencer B. Huggett
- Department of Psychology and NeuroscienceUniversity of Colorado Boulder Boulder Colorado
- Institute for Behavioral GeneticsUniversity of Colorado Boulder Boulder Colorado
| | - Michael C. Stallings
- Department of Psychology and NeuroscienceUniversity of Colorado Boulder Boulder Colorado
- Institute for Behavioral GeneticsUniversity of Colorado Boulder Boulder Colorado
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El-Shamarka MES, Sayed RH, Assaf N, Zeidan HM, Hashish AF. Combined neurotoxic effects of cannabis and nandrolone decanoate in adolescent male rats. Neurotoxicology 2020; 76:114-125. [PMID: 31704101 DOI: 10.1016/j.neuro.2019.11.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 11/03/2019] [Accepted: 11/04/2019] [Indexed: 12/21/2022]
Abstract
Polydrug use among adolescence is a widespread phenomenon and has increased in the last few years. In particular, most nandrolone decanoate (Nan) abusers combine its use with cannabis (Can); thus, studying the consequences of this combination in adolescent subjects is important because potentiation of their effects may increase their neurotoxicity. The present study was designed to study the neurotoxic effects of Nan and Can, alone and in combination, in adolescent male rats by studying the behavioural, biochemical, and histopathological effects. Nan (15 mg/kg, s.c.) and Can (20 mg/kg, s.c.) were given alone or in combination to rats once daily for one month. The combined administration of Can and Nan induced learning and spatial memory deficits, hypo-locomotion, anxiety and aggression in adolescent rats as evidenced by the Morris water maze, open field, elevated plus maze, and defensive aggression tests. In parallel, rats treated with the combination showed severe deleterious effects in the hippocampal and prefrontal cortex (PFC) neural architecture along with a decrease in brain-derived neurotropic factor. Furthermore, combined administration of Can and Nan increased oxidative stress (significantly increased malondialdehyde and nitric oxide levels and reduced glutathione content), elevated brain pro-inflammatory cytokines (tumour necrosis factor alpha and interleukin 1 beta), and upregulated caspase-3, caspase-8, and caspase-9 mRNA expression and cytochrome c levels. In conclusion, abuse of both Can and Nan conferred greater neurotoxic effects than either drug alone that were at least partially attributed to oxidative stress, inflammation, and intrinsic and extrinsic apoptosis in the hippocampus and PFC of rats.
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Abstract
Addiction to substances such as alcohol, cocaine, opioids, and methamphetamine poses a continuing clinical and public challenge globally. Despite progress in understanding substance use disorders, challenges remain in their treatment. Some of these challenges include limited ability of therapeutics to reach the brain (blood-brain barrier), adverse systemic side effects of current medications, and importantly key aspects of addiction not addressed by currently available treatments (such as cognitive impairment). Inability to sustain abstinence or seek treatment due to cognitive deficits such as poor decision-making and impulsivity is known to cause poor treatment outcomes. In this review, we provide an evidenced-based rationale for intranasal drug delivery as a viable and safe treatment modality to bypass the blood-brain barrier and target insulin to the brain to improve the treatment of addiction. Intranasal insulin with improvement of brain cell energy and glucose metabolism, stress hormone reduction, and improved monoamine transmission may be an ideal approach for treating multiple domains of addiction including memory and impulsivity. This may provide additional benefits to enhance current treatment approaches.
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Affiliation(s)
- Bhavani Kashyap
- HealthPartners Neuroscience Center, 295 Phalen Blvd, St Paul, Minnesota, 55130, USA.
- HealthPartners Institute, Bloomington, Minnesota, USA.
| | - Leah R Hanson
- HealthPartners Neuroscience Center, 295 Phalen Blvd, St Paul, Minnesota, 55130, USA
- HealthPartners Institute, Bloomington, Minnesota, USA
| | - William H Frey Ii
- HealthPartners Neuroscience Center, 295 Phalen Blvd, St Paul, Minnesota, 55130, USA
- HealthPartners Institute, Bloomington, Minnesota, USA
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Indices of dentate gyrus neurogenesis are unaffected immediately after or following withdrawal from morphine self-administration compared to saline self-administering control male rats. Behav Brain Res 2019; 381:112448. [PMID: 31870778 DOI: 10.1016/j.bbr.2019.112448] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 12/01/2019] [Accepted: 12/19/2019] [Indexed: 12/16/2022]
Abstract
Opiates - including morphine - are powerful analgesics with high abuse potential. In rodents, chronic opiate exposure or self-administration negatively impacts hippocampal-dependent function, an effect perhaps due in part to the well-documented opiate-induced inhibition of dentate gyrus (DG) precursor proliferation and neurogenesis. Recently, however, intravenous (i.v.) morphine self-administration (MSA) was reported to enhance the survival of new rat DG neurons. To reconcile these disparate results, we used rat i.v. MSA to assess 1) whether a slightly-higher dose MSA paradigm also increases new DG neuron survival; 2) how MSA influences cells in different stages of DG neurogenesis, particularly maturation and survival; and 3) if MSA-induced changes in DG neurogenesis persist through a period of abstinence. To label basal levels of proliferation, rats received the S-phase marker bromodeoxyuridine (BrdU, i.p.) 24 -h prior to 21 days (D) of i.v. MSA or saline self-administration (SSA). Either immediately after SA (0-D) or after 4 weeks in the home cage (28-D withdrawal), stereology was used to quantify DG proliferating precursors (or cells in cell cycle; Ki67+ cells), neuroblast/immature neurons (DCX+ cells), and surviving DG granule cells (BrdU+ cells). Analysis revealed the number of DG cells immunopositive for these neurogenesis-relevant markers was similar between MSA and SSA rats at the 0-D or 28-D timepoints. These negative data highlight the impact experimental parameters, timepoint selection, and quantification approach have on neurogenesis results, and are discussed in the context of the large literature showing the negative impact of opiates on DG neurogenesis.
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Sampedro-Piquero P, J. Santín L, Castilla-Ortega E. Aberrant Brain Neuroplasticity and Function in Drug Addiction: A Focus on Learning-Related Brain Regions. Behav Neurosci 2019. [DOI: 10.5772/intechopen.85280] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Castilla-Ortega E, Santín LJ. Adult hippocampal neurogenesis as a target for cocaine addiction: a review of recent developments. Curr Opin Pharmacol 2019; 50:109-116. [PMID: 31708413 DOI: 10.1016/j.coph.2019.10.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 08/23/2019] [Accepted: 10/01/2019] [Indexed: 11/16/2022]
Abstract
Basic research in rodents has shown that adult hippocampal neurogenesis (AHN) plays a key role in neuropsychiatric disorders that compromise hippocampal functioning. The discovery that dependence-inducing drugs regulate AHN has led to escalating interest in the potential involvement of AHN in drug addiction over the last decade, with cocaine being one of the most frequently investigated drugs. This review argues that, unlike other drugs of abuse, preclinical studies do not, overall, support that cocaine induces a marked or persistent impairment in AHN. Nevertheless, experimental reduction of AHN consistently exacerbates vulnerability to cocaine. Interestingly, preliminary evidence suggests that, on the contrary, increasing AHN might help both to prevent and treat addiction.
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Affiliation(s)
- Estela Castilla-Ortega
- Instituto de Investigación Biomédica de Málaga-IBIMA, Spain; Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Spain.
| | - Luis J Santín
- Instituto de Investigación Biomédica de Málaga-IBIMA, Spain; Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Facultad de Psicología, Universidad de Málaga, Spain.
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Sampedro-Piquero P, Ladrón de Guevara-Miranda D, Pavón FJ, Serrano A, Suárez J, Rodríguez de Fonseca F, Santín LJ, Castilla-Ortega E. Neuroplastic and cognitive impairment in substance use disorders: a therapeutic potential of cognitive stimulation. Neurosci Biobehav Rev 2019; 106:23-48. [DOI: 10.1016/j.neubiorev.2018.11.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 10/15/2018] [Accepted: 11/23/2018] [Indexed: 01/08/2023]
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Heat shock protein 70 increases cell proliferation, neuroblast differentiation, and the phosphorylation of CREB in the hippocampus. Lab Anim Res 2019; 35:21. [PMID: 32257909 PMCID: PMC7081702 DOI: 10.1186/s42826-019-0020-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 10/09/2019] [Indexed: 12/22/2022] Open
Abstract
In the present study, we investigated the effects of heat shock protein 70 (HSP70) on novel object recognition, cell proliferation, and neuroblast differentiation in the hippocampus. To facilitate penetration into the blood–brain barrier and neuronal plasma membrane, we created a Tat-HSP70 fusion protein. Eight-week-old mice received intraperitoneal injections of vehicle (10% glycerol), control-HSP70, or Tat-HSP70 protein once a day for 21 days. To elucidate the delivery efficiency of HSP70 into the hippocampus, western blot analysis for polyhistidine was conducted. Polyhistidine protein levels were significantly increased in control-HSP70- and Tat-HSP70-treated groups compared to the control or vehicle-treated group. However, polyhistidine protein levels were significantly higher in the Tat-HSP70-treated group compared to that in the control-HSP70-treated group. In addition, immunohistochemical study for HSP70 showed direct evidences for induction of HSP70 immunoreactivity in the control-HSP70- and Tat-HSP70-treated groups. Administration of Tat-HSP70 increased the novel object recognition memory compared to untreated mice or mice treated with the vehicle. In addition, the administration of Tat-HSP70 significantly increased the populations of proliferating cells and differentiated neuroblasts in the dentate gyrus compared to those in the control or vehicle-treated group based on the Ki67 and doublecortin (DCX) immunostaining. Furthermore, the phosphorylation of cAMP response element-binding protein (pCREB) was significantly enhanced in the dentate gyrus of the Tat-HSP70-treated group compared to that in the control or vehicle-treated group. Western blot study also demonstrated the increases of DCX and pCREB protein levels in the Tat-HSP70-treated group compared to that in the control or vehicle-treated group. In contrast, administration of control-HSP70 moderately increased the novel object recognition memory, cell proliferation, and neuroblast differentiation in the dentate gyrus compared to that in the control or vehicle-treated group. These results suggest that Tat-HSP70 promoted hippocampal functions by increasing the pCREB in the hippocampus.
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Zadehasan J, sarraj khorrami N. Correlation between Emotional Intelligence, Impulsivity and Irrational Beliefs with Addiction Potential of Male Secondary School Students. JOURNAL OF EDUCATION AND COMMUNITY HEALTH 2019. [DOI: 10.29252/jech.6.4.215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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Ladrón de Guevara‐Miranda D, Moreno‐Fernández RD, Gil‐Rodríguez S, Rosell‐Valle C, Estivill‐Torrús G, Serrano A, Pavón FJ, Rodríguez de Fonseca F, Santín LJ, Castilla‐Ortega E. Lysophosphatidic acid-induced increase in adult hippocampal neurogenesis facilitates the forgetting of cocaine-contextual memory. Addict Biol 2019; 24:458-470. [PMID: 29480526 DOI: 10.1111/adb.12612] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 01/17/2018] [Accepted: 01/23/2018] [Indexed: 01/10/2023]
Abstract
Erasing memories of cocaine-stimuli associations might have important clinical implications for addiction therapy. Stimulating hippocampal plasticity by enhancing adult hippocampal neurogenesis (AHN) is a promising strategy because the addition of new neurons may not only facilitate new learning but also modify previous connections and weaken retrograde memories. To investigate whether increasing AHN prompted the forgetting of previous contextual cocaine associations, mice trained in a cocaine-induced conditioned place preference (CPP) paradigm were administered chronic intracerebroventricular infusions of lysophosphatidic acid (LPA, an endogenous lysophospholipid with pro-neurogenic actions), ki16425 (an LPA1/3 receptor antagonist) or a vehicle solution, and they were tested 23 days later for CPP retention and extinction. The results of immunohistochemical experiments showed that the LPA-treated mice exhibited reduced long-term CPP retention and an approximately twofold increase in the number of adult-born hippocampal cells that differentiated into mature neurons. Importantly, mediation analyses confirmed a causal role of AHN in reducing CPP maintenance. In contrast, the ki16425-treated mice displayed aberrant responses, with initially decreased CPP retention that progressively increased across the extinction sessions, leading to no effect on AHN. The pharmacological treatments did not affect locomotion or general exploratory or anxiety-like responses. In a second experiment, normal and LPA1 -receptor-deficient mice were acutely infused with LPA, which revealed that LPA1 -mediated signaling was required for LPA-induced proliferative actions. These results suggest that the LPA/LPA1 pathway acts as a potent in vivo modulator of AHN and highlight the potential usefulness of pro-AHN strategies to treat aberrant cognition in those addicted to cocaine.
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Affiliation(s)
- David Ladrón de Guevara‐Miranda
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Instituto de Investigación Biomédica de Málaga (IBIMA), Facultad de PsicologíaUniversidad de Málaga Spain
| | - Román Darío Moreno‐Fernández
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Instituto de Investigación Biomédica de Málaga (IBIMA), Facultad de PsicologíaUniversidad de Málaga Spain
| | - Sara Gil‐Rodríguez
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Instituto de Investigación Biomédica de Málaga (IBIMA), Facultad de PsicologíaUniversidad de Málaga Spain
| | - Cristina Rosell‐Valle
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Instituto de Investigación Biomédica de Málaga (IBIMA), Facultad de PsicologíaUniversidad de Málaga Spain
- Unidad de Producción de Reprogramación CelularGMP‐Iniciativa Andaluza en Terapia Avanzadas, Junta de Andalucía Spain
| | - Guillermo Estivill‐Torrús
- Unidad de Gestión Clínica de Neurociencias, Instituto de Investigación Biomédica de Málaga (IBIMA)Hospital Regional Universitario de Málaga Spain
| | - Antonia Serrano
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA)Hospital Regional Universitario de Málaga Spain
| | - Francisco J. Pavón
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA)Hospital Regional Universitario de Málaga Spain
| | - Fernando Rodríguez de Fonseca
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA)Hospital Regional Universitario de Málaga Spain
| | - Luis J. Santín
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Instituto de Investigación Biomédica de Málaga (IBIMA), Facultad de PsicologíaUniversidad de Málaga Spain
| | - Estela Castilla‐Ortega
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA)Hospital Regional Universitario de Málaga Spain
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Rivera PD, Simmons SJ, Reynolds RP, Just AL, Birnbaum SG, Eisch AJ. Image-guided cranial irradiation-induced ablation of dentate gyrus neurogenesis impairs extinction of recent morphine reward memories. Hippocampus 2019; 29:726-735. [PMID: 30779299 DOI: 10.1002/hipo.23071] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 12/10/2018] [Accepted: 12/17/2018] [Indexed: 12/25/2022]
Abstract
Dentate gyrus adult neurogenesis is implicated in the formation of hippocampal-dependent contextual associations. However, the role of adult neurogenesis during reward-based context-dependent paradigms-such as conditioned place preference (CPP)-is understudied. Therefore, we used image-guided, hippocampal-targeted X-ray irradiation (IG-IR) and morphine CPP to explore whether dentate gyrus adult neurogenesis plays a role in reward memories created in adult C57BL/6J male mice. In addition, as adult neurogenesis appears to participate to a greater extent in retrieval and extinction of recent (<48 hr posttraining) versus remote (>1 week posttraining) memories, we specifically examined the role of adult neurogenesis in reward-associated contextual memories probed at recent and remote timepoints. Six weeks post-IG-IR or Sham treatment, mice underwent morphine CPP. Using separate groups, retrieval of recent and remote reward memories was found to be similar between IG-IR and Sham treatments. Interestingly, IG-IR mice showed impaired extinction-or increased persistence-of the morphine-associated reward memory when it was probed 24-hr (recent) but not 3-weeks (remote) postconditioning relative to Sham mice. Taken together, these data show that hippocampal-directed irradiation and the associated decrease in dentate gyrus adult neurogenesis affect the persistence of recently-but not remotely-probed reward memory. These data indicate a novel role for adult neurogenesis in reward-based memories and particularly the extinction rate of these memories. Consideration of this work may lead to better understanding of extinction-based behavioral interventions for psychiatric conditions characterized by dysregulated reward processing.
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Affiliation(s)
- Phillip D Rivera
- Department of Psychiatry, UT Southwestern Medical Center, Dallas, Texas
| | - Steven J Simmons
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Ryan P Reynolds
- Department of Psychiatry, UT Southwestern Medical Center, Dallas, Texas.,Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Alanna L Just
- Department of Psychiatry, UT Southwestern Medical Center, Dallas, Texas
| | - Shari G Birnbaum
- Department of Psychiatry, UT Southwestern Medical Center, Dallas, Texas
| | - Amelia J Eisch
- Department of Psychiatry, UT Southwestern Medical Center, Dallas, Texas.,Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.,Department of Neuroscience, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
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49
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Depleting adult dentate gyrus neurogenesis increases cocaine-seeking behavior. Mol Psychiatry 2019; 24:312-320. [PMID: 29507372 DOI: 10.1038/s41380-018-0038-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 01/16/2018] [Accepted: 02/02/2018] [Indexed: 12/11/2022]
Abstract
The hippocampus is the main locus for adult dentate gyrus (DG) neurogenesis. A number of studies have shown that aberrant DG neurogenesis correlates with many neuropsychiatric disorders, including drug addiction. Although clear causal relationships have been established between DG neurogenesis and memory dysfunction or mood-related disorders, evidence of the causal role of DG neurogenesis in drug-seeking behaviors has not been established. Here we assessed the role of new DG neurons in cocaine self-administration using an inducible transgenic approach that selectively depletes adult DG neurogenesis. Our results show that transgenic mice with decreased adult DG neurogenesis exhibit increased motivation to self-administer cocaine and a higher seeking response to cocaine-related cues. These results identify adult hippocampal neurogenesis as a key factor in vulnerability to cocaine addiction.
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50
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Luján MÁ, Castro-Zavala A, Alegre-Zurano L, Valverde O. Repeated Cannabidiol treatment reduces cocaine intake and modulates neural proliferation and CB1R expression in the mouse hippocampus. Neuropharmacology 2018; 143:163-175. [DOI: 10.1016/j.neuropharm.2018.09.043] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 09/04/2018] [Accepted: 09/26/2018] [Indexed: 12/18/2022]
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