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Girard M, Labrunie A, Malauzat D, Nubukpo P. Evolution of BDNF serum levels during the first six months after alcohol withdrawal. World J Biol Psychiatry 2020; 21:739-747. [PMID: 32081048 DOI: 10.1080/15622975.2020.1733079] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Brain-Derived Neurotrophic Factor (BDNF) has been associated with alcohol dependence and appear to vary after withdrawal, although the link with the withdrawal outcome on the long term is unknown. We aimed to assess the evolution of BDNF levels during the six months following withdrawal and determine the association with the status of alcohol consumption. METHODS Serum BDNF levels of alcohol-dependent patients (n = 248) and biological and clinical parameters were determined at the time of alcohol cessation (D0), 14 days (D14), 28 days (D28), and 2, 4, and 6 months after (M2, M4, M6). RESULTS Abstinence decreased during follow-up and was 31.9% after six months. BDNF levels increased by 14 days after withdrawal and remained elevated throughout the six-month period, independently of alcohol consumption. Serum BDNF levels evolved over time (p < 0.0001), with a correlation between BDNF and GGT levels. The prescription of baclofen at the time of withdrawal was associated with higher serum BDNF levels throughout the follow-up and that of anti-inflammatory drugs with lower BDNF levels. CONCLUSIONS A link between BDNF levels, liver function, and the inflammatory state in the context of alcohol abuse and not only with alcohol dependence itself is proposed.
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Affiliation(s)
- Murielle Girard
- Unité de Recherche et de Neurostimulation, Centre Hospitalier Esquirol, Limoges, France
| | | | - Dominique Malauzat
- Unité de Recherche et de Neurostimulation, Centre Hospitalier Esquirol, Limoges, France
| | - Philippe Nubukpo
- Unité de Recherche et de Neurostimulation, Centre Hospitalier Esquirol, Limoges, France.,Centre Hospitalier Esquirol, Pôle Universitaire d'Addictologie, Limoges, France
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2
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Gorka SM, Teppen T, Radoman M, Phan KL, Pandey SC. Human Plasma BDNF Is Associated With Amygdala-Prefrontal Cortex Functional Connectivity and Problem Drinking Behaviors. Int J Neuropsychopharmacol 2020; 23:1-11. [PMID: 31722379 PMCID: PMC7064048 DOI: 10.1093/ijnp/pyz057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 10/29/2019] [Accepted: 11/11/2019] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Preclinical studies suggest that decreased levels of brain-derived neurotrophic factor in the amygdala play a role in anxiety and alcohol use disorder. The association between brain-derived neurotrophic factor levels and amygdala function in humans with alcohol use disorder is still unclear, although neuroimaging studies have also implicated the amygdala in alcohol use disorder and suggest that alcohol use disorder is associated with disrupted functional connectivity between the amygdala and prefrontal cortex during aversive states. METHODS The current study investigated whether plasma brain-derived neurotrophic factor levels in individuals with and without alcohol use disorder (n = 57) were associated with individual differences in amygdala reactivity and amygdala-prefrontal cortex functional connectivity during 2 forms of aversive responding captured via functional magnetic resonance imaging: anxiety elicited by unpredictable threat of shock and fear elicited by predictable threat of shock. We also examined whether brain-derived neurotrophic factor and brain function were associated with binge drinking episodes and alcohol use disorder age of onset. RESULTS During anxiety, but not fear, lower levels of plasma brain-derived neurotrophic factor were associated with less connectivity between the left amygdala and the medial prefrontal cortex and the inferior frontal gyrus. In addition, within individuals with alcohol use disorder (only), lower levels of brain-derived neurotrophic factor and amygdala-medial prefrontal cortex functional connectivity during anxiety were associated with more binge episodes within the past 60 days and a lower age of alcohol use disorder onset. There were no associations between brain-derived neurotrophic factor levels and focal amygdala task reactivity. CONCLUSIONS Together, the results indicate that plasma brain-derived neurotrophic factor levels are related to amygdala circuit functioning in humans, particularly during anxiety, and these individual differences may relate to drinking behaviors.
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Affiliation(s)
- Stephanie M Gorka
- Department of Psychiatry, University of Illinois-Chicago, Chicago, Illinois
- Center for Alcohol Research in Epigenetics (CARE), University of Illinois-Chicago, Chicago, Illinois
- Department of Psychology, University of Illinois-Chicago, Chicago, Illinois
| | - Tara Teppen
- Department of Psychiatry, University of Illinois-Chicago, Chicago, Illinois
- Center for Alcohol Research in Epigenetics (CARE), University of Illinois-Chicago, Chicago, Illinois
- Jesse Brown VA Medical Center, Chicago, Illinois
| | - Milena Radoman
- Department of Psychiatry, University of Illinois-Chicago, Chicago, Illinois
| | - K Luan Phan
- Department of Psychiatry, University of Illinois-Chicago, Chicago, Illinois
- Department of Psychology, University of Illinois-Chicago, Chicago, Illinois
- Jesse Brown VA Medical Center, Chicago, Illinois
| | - Subhash C Pandey
- Department of Psychiatry, University of Illinois-Chicago, Chicago, Illinois
- Center for Alcohol Research in Epigenetics (CARE), University of Illinois-Chicago, Chicago, Illinois
- Jesse Brown VA Medical Center, Chicago, Illinois
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Silva-Peña D, García-Marchena N, Alén F, Araos P, Rivera P, Vargas A, García-Fernández MI, Martín-Velasco AI, Villanúa MÁ, Castilla-Ortega E, Santín L, Pavón FJ, Serrano A, Rubio G, Rodríguez de Fonseca F, Suárez J. Alcohol-induced cognitive deficits are associated with decreased circulating levels of the neurotrophin BDNF in humans and rats. Addict Biol 2019; 24:1019-1033. [PMID: 30277635 DOI: 10.1111/adb.12668] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 07/05/2018] [Accepted: 07/18/2018] [Indexed: 02/06/2023]
Abstract
Chronic alcohol consumption is associated with neurocognitive and memory deficits, dramatically affecting plasticity and connectivity, with maximal expression as dementia. Neurotrophic factors may contribute to alcohol-related cognitive decline. For further investigation, a cross-sectional study was performed to evaluate the association of cognitive impairment, by using frontal assessment battery, and memory loss, using memory failures everyday, with the circulating levels of the neurotrophin brain-derived neurotrophic factor (BDNF) and neurotrophin 3 (NT-3) in abstinent subjects with alcohol use disorders (AUDs, N = 58, average of 17.9 years of problematic use and 4.3 months of abstinence) compared with healthy control subjects (N = 22). This association was also explored in a pre-clinical model of adolescent rats chronically exposed to alcohol up to adulthood (~77 days old) in a three-bottle free-choice (5-10-20 percent), repeated abstinence and relapse paradigm. AUD subjects had low educational level and cognitive impairment associated with teenage consumption and lower circulating levels of BDNF and NT-3. Only BDNF concentration showed a positive correlation with frontal assessment battery in AUD patients. In the ethanol-exposed rats, the plasma levels of BDNF and NT-3 were also decreased, and a negative correlation between hippocampal Bdnf mRNA levels and recognition memory was found. The ethanol-exposed rat hippocampus showed a decrease in the mRNA levels of neurotrophic (Bdnf and Ntf-3) and neurogenic (Mki67, Sox2, Dcx, Ncam1 and Calb1) factors, associated to a deactivation of the neurogenic regulator mitogen-activated protein kinase extracellular signal-regulated kinase. Results suggest a relevant role of BDNF/extracellular signal-regulated kinase 2 signaling in alcohol-induced cognitive impairment and suggest that early alcohol exposure-derived effects on cognition are associated with neurotrophin signaling deficits.
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Affiliation(s)
- Daniel Silva-Peña
- Instituto de Investigación Biomédica de Málaga (IBIMA), UGC Salud Mental; Universidad de Málaga, Hospital Universitario Regional de Málaga; Spain
| | - Nuria García-Marchena
- Instituto de Investigación Biomédica de Málaga (IBIMA), UGC Salud Mental; Universidad de Málaga, Hospital Universitario Regional de Málaga; Spain
| | - Francisco Alén
- Instituto de Investigación Biomédica de Málaga (IBIMA), UGC Salud Mental; Universidad de Málaga, Hospital Universitario Regional de Málaga; Spain
| | - Pedro Araos
- Instituto de Investigación Biomédica de Málaga (IBIMA), UGC Salud Mental; Universidad de Málaga, Hospital Universitario Regional de Málaga; Spain
| | - Patricia Rivera
- Departamento de Endocrinología; Fundación Investigación Biomédica del Hospital Infantil Universitario Niño Jesús; Spain
| | - Antonio Vargas
- Instituto de Investigación Biomédica de Málaga (IBIMA), UGC Salud Mental; Universidad de Málaga, Hospital Universitario Regional de Málaga; Spain
| | | | | | | | - Estela Castilla-Ortega
- Instituto de Investigación Biomédica de Málaga (IBIMA), UGC Salud Mental; Universidad de Málaga, Hospital Universitario Regional de Málaga; Spain
| | - Luis Santín
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, IBIMA, Facultad de Psicología; Universidad de Málaga; Spain
| | - Francisco Javier Pavón
- Instituto de Investigación Biomédica de Málaga (IBIMA), UGC Salud Mental; Universidad de Málaga, Hospital Universitario Regional de Málaga; Spain
| | - Antonia Serrano
- Instituto de Investigación Biomédica de Málaga (IBIMA), UGC Salud Mental; Universidad de Málaga, Hospital Universitario Regional de Málaga; Spain
| | - Gabriel Rubio
- Departamento de Psiquiatría; Universidad Complutense, Instituto de Investigación Hospital 12 de Octubre; Spain
| | - Fernando Rodríguez de Fonseca
- Instituto de Investigación Biomédica de Málaga (IBIMA), UGC Salud Mental; Universidad de Málaga, Hospital Universitario Regional de Málaga; Spain
- Departamento de Psicobiología; Universidad Complutense; Spain
| | - Juan Suárez
- Instituto de Investigación Biomédica de Málaga (IBIMA), UGC Salud Mental; Universidad de Málaga, Hospital Universitario Regional de Málaga; Spain
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Silva-Peña D, Rivera P, Alén F, Vargas A, Rubio L, García-Marchena N, Pavón FJ, Serrano A, Rodríguez de Fonseca F, Suárez J. Oleoylethanolamide Modulates BDNF-ERK Signaling and Neurogenesis in the Hippocampi of Rats Exposed to Δ 9-THC and Ethanol Binge Drinking During Adolescence. Front Mol Neurosci 2019; 12:96. [PMID: 31068789 PMCID: PMC6491684 DOI: 10.3389/fnmol.2019.00096] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 04/01/2019] [Indexed: 01/08/2023] Open
Abstract
Oleoylethanolamide is an endogenous NAE that modulates ethanol-seeking behavior and ethanol-induced neuroinflammation. In the present study we further analyze the role of OEA in hippocampal neurogenesis, BDNF-ERK signaling, and spatial memory that are affected by alcohol. Additionally, we addressed the effects of OEA on the association of alcohol and cannabis, a frequent combination in human alcohol addicts, and whose long-term effects are far from being understood. To this end, OEA (10 mg/kg/day, i.p.) was pharmacologically administered for 5 days/week in a preclinical model of adolescent rats with binge-like consumption (1 day/week) of ethanol (3 g/kg, i.g.) combined or not with acute administrations of Δ9-THC (5 mg/kg, i.p.) for 5 weeks. OEA restored ethanol/THC-related decreases in both short-term spatial memory (spontaneous alternation by Y-maze) and circulating levels of BDNF, reduced cell proliferation (Mki67 and IdU+ cells) and maturation (Dcx, Calb1), and improved cell survival (Casp3 and BrdU+ cells) in the dorsal hippocampus. Interestingly, OEA alone or combined with THC also decreased the mRNA levels of neurotrophic factors (Bdnf, Ntf3) and the NT3 receptor TrkC, but increased the BDNF receptor TrkB in the hippocampus of ethanol-exposed rats. These effects were likely associated with a OEA-specific phosphorylation of AKT and ERK1, key signaling regulators of cell proliferation and survival. These results suggest a regulatory role of OEA in short-term spatial memory and hippocampal neurogenesis through BDNF/AKT/ERK1 signaling in response to acute THC in an alcoholic context during adolescence.
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Affiliation(s)
- Daniel Silva-Peña
- Instituto de Investigación Biomédica de Málaga, U.G.C. de Salud Mental, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Patricia Rivera
- Department of Endocrinology, Fundación Investigación Biomédica del Hospital Infantil Universitario Niño Jesús, Madrid, Spain
| | - Francisco Alén
- Departamento de Psicobiología, Universidad Complutense Madrid, Pozuelo de Alarcón, Spain
| | - Antonio Vargas
- Instituto de Investigación Biomédica de Málaga, U.G.C. de Salud Mental, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Leticia Rubio
- Departamento de Anatomía y Medicina Legal, Universidad de Málaga, Málaga, Spain
| | - Nuria García-Marchena
- Instituto de Investigación Biomédica de Málaga, U.G.C. de Salud Mental, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Francisco Javier Pavón
- Instituto de Investigación Biomédica de Málaga, U.G.C. de Salud Mental, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Antonia Serrano
- Instituto de Investigación Biomédica de Málaga, U.G.C. de Salud Mental, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Fernando Rodríguez de Fonseca
- Instituto de Investigación Biomédica de Málaga, U.G.C. de Salud Mental, Hospital Regional Universitario de Málaga, Málaga, Spain.,Departamento de Psicobiología, Universidad Complutense Madrid, Pozuelo de Alarcón, Spain
| | - Juan Suárez
- Instituto de Investigación Biomédica de Málaga, U.G.C. de Salud Mental, Hospital Regional Universitario de Málaga, Málaga, Spain
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Gavin DP, Hashimoto JG, Lazar NH, Carbone L, Crabbe JC, Guizzetti M. Stable Histone Methylation Changes at Proteoglycan Network Genes Following Ethanol Exposure. Front Genet 2018; 9:346. [PMID: 30214456 PMCID: PMC6125400 DOI: 10.3389/fgene.2018.00346] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 08/09/2018] [Indexed: 12/14/2022] Open
Abstract
Alcohol use disorder (AUD) is a chronic mental illness in which patients often achieve protracted periods of abstinence prior to relapse. Epigenetic mechanisms may provide an explanation for the persisting gene expression changes that can be observed even after long periods of abstinence and may contribute to relapse. In this study, we examined two histone modifications, histone 3 lysine 4 tri-methylation (H3K4me3) and histone 3 lysine 27 tri-methylation (H3K27me3), in the prefrontal cortex of Withdrawal Seizure Resistant (WSR) mice 21 days after 72 h of ethanol vapor exposure. These histone modifications were selected because they are associated with active promoters (H3K4me3) and repressed gene expression in a euchromatic environment (H3K27me3). We performed a genome-wide analysis to identify differences in H3K4me3 and H3K27me3 levels in post-ethanol exposure vs. control mice by ChIP-seq. We detected a global reduction in H3K4me3 peaks and increase in H3K27me3 peaks in post-ethanol exposure mice compared to controls, these changes are consistent with persistent reductions in gene expression. Pathway analysis of genes displaying changes in H3K4me3 and H3K27me3 revealed enrichment for genes involved in proteoglycan and calcium signaling pathways, respectively. Microarray analysis of 7,683 genes and qPCR analysis identified eight genes displaying concordant regulation of gene expression and H3K4me3/H3K27me3. We also compared changes in H3K4me3 and/or H3K27me3 from our study with changes in gene expression in response to ethanol from published literature and we found that the expression of 52% of the genes with altered H3K4me3 binding and 40% of genes with H3K27me3 differences are altered by ethanol exposure. The chromatin changes associated with the 21-day post-exposure period suggest that this period is a unique state in the addiction cycle that differs from ethanol intoxication and acute withdrawal. These results provide insights into the enduring effects of ethanol on proteoglycan and calcium signaling genes in the brain.
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Affiliation(s)
- David P. Gavin
- Jesse Brown Veterans Affairs Medical Center, Chicago, IL, United States
- Department of Psychiatry, Center for Alcohol Research in Epigenetics, University of Illinois at Chicago, Chicago, IL, United States
| | - Joel G. Hashimoto
- Department of Behavioral Neuroscience, Oregon Health and Science University, Portland, OR, United States
- VA Portland Health Care System, Portland, OR, United States
| | - Nathan H. Lazar
- Department of Behavioral Neuroscience, Oregon Health and Science University, Portland, OR, United States
| | - Lucia Carbone
- Department of Behavioral Neuroscience, Oregon Health and Science University, Portland, OR, United States
| | - John C. Crabbe
- Department of Behavioral Neuroscience, Oregon Health and Science University, Portland, OR, United States
- VA Portland Health Care System, Portland, OR, United States
| | - Marina Guizzetti
- Department of Behavioral Neuroscience, Oregon Health and Science University, Portland, OR, United States
- VA Portland Health Care System, Portland, OR, United States
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Balietti M, Giuli C, Conti F. Peripheral Blood Brain-Derived Neurotrophic Factor as a Biomarker of Alzheimer's Disease: Are There Methodological Biases? Mol Neurobiol 2018; 55:6661-6672. [PMID: 29330839 PMCID: PMC6061178 DOI: 10.1007/s12035-017-0866-y] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 12/26/2017] [Indexed: 12/13/2022]
Abstract
Mounting evidence that alterations in brain-derived neurotrophic factor (BDNF) levels and signaling may be involved in the etiopathogenesis of Alzheimer's disease (AD) has suggested that its blood levels could be used as a biomarker of the disease. However, higher, lower, or unchanged circulating BDNF levels have all been described in AD patients compared to healthy controls. Although the reasons for such different findings are unclear, methodological issues are likely to be involved. The heterogeneity of participant recruitment criteria and the lack of control of variables that influence circulating BDNF levels regardless of dementia (depressive symptoms, medications, lifestyle, lack of overlap between serum and plasma, and experimental aspects) are likely to bias result and prevent study comparability. The present work reviews a broad panel of factors, whose close control could help reduce the inconsistency of study findings, and offers practical advice on their management. Research directed at elucidating the weight of each of these variables and at standardizing analytical methodologies is urgently needed.
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Affiliation(s)
- Marta Balietti
- Center for Neurobiology of Aging, INRCA, Via Birarelli 8, 60121, Ancona, Italy.
| | - Cinzia Giuli
- Geriatrics Operative Unit, INRCA, Fermo, 63023, Italy
| | - Fiorenzo Conti
- Center for Neurobiology of Aging, INRCA, Via Birarelli 8, 60121, Ancona, Italy
- Department of Experimental and Clinical Medicine, Section of Neuroscience and Cell Biology, Università Politecnica delle Marche, Ancona, 60126, Italy
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8
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Su ZY, Ye Q, Liu XB, Chen YZ, Zhan H, Xu SY. Dexmedetomidine mitigates isoflurane-induced neurodegeneration in fetal rats during the second trimester of pregnancy. Neural Regen Res 2017; 12:1329-1337. [PMID: 28966649 PMCID: PMC5607829 DOI: 10.4103/1673-5374.213554] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Dexmedetomidine has significant neuroprotective effects. However, whether its protective effects can reduce neurotoxicity caused by isoflurane in fetal brain during the second trimester of pregnancy remains unclear. In this study, timed-pregnancy rats at gestational day 14 spontaneously inhaled 1.5% isoflurane for 4 hours, and were intraperitoneally injected with dexmedetomidine at dosages of 5, 10, 20, and 20 μg/kg 15 minutes before inhalation and after inhalation for 2 hours. Our results demonstrate that 4 hours after inhaling isoflurane, 20 μg/kg dexmedetomidine visibly mitigated isoflurane-induced neuronal apoptosis, reversed downregulation of brain-derived neurotrophic factor expression, and lessened decreased spatial learning and memory ability in adulthood in the fetal rats. Altogether, these findings indicate that dexmedetomidine can reduce neurodegeneration induced by isoflurane in fetal rats during the second trimester of pregnancy. Further, brain-derived neurotrophic factor participates in this process.
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Affiliation(s)
- Zhi-Yuan Su
- Department of Anesthesia, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Qing Ye
- Department of Anesthesia, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Xian-Bao Liu
- Department of Anesthesia, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Yu-Zhong Chen
- Department of Anesthesia, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Hong Zhan
- Department of Anesthesia, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Shi-Yuan Xu
- Department of Anesthesia, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China
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Fernandez GM, Stewart WN, Savage LM. Chronic Drinking During Adolescence Predisposes the Adult Rat for Continued Heavy Drinking: Neurotrophin and Behavioral Adaptation after Long-Term, Continuous Ethanol Exposure. PLoS One 2016; 11:e0149987. [PMID: 26930631 PMCID: PMC4773001 DOI: 10.1371/journal.pone.0149987] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 02/07/2016] [Indexed: 12/22/2022] Open
Abstract
Previous research has found that adolescent ethanol (EtOH) exposure alters drug seeking behaviors, cognition and neuroplasticity. Using male Sprague Dawley rats, differences in spatial working memory, non-spatial discrimination learning and behavioral flexibility were explored as a function of age at the onset (mid-adolescent vs. adult) of chronic EtOH exposure (CET). Concentrations of mature brain-derived neurotrophic factor (mBDNF) and beta-nerve growth factor (β-NGF) in the prefrontal cortex and hippocampus were also assessed at different time-points: during CET, following acute abstinence (48-hrs), and after protracted abstinence (6-8 wks). Our results revealed that an adolescent onset of CET leads to increased EtOH consumption that persisted into adulthood. In both adult and adolescent onset CET groups, there were significant long-term reductions in prefrontal cortical mBDNF and β-NGF levels. However, only adult onset CET rats displayed decreased hippocampal BDNF levels. Spatial memory, assessed by spontaneous alternation and delayed alternation, was not significantly affected by CET as a function of age of drinking onset, but higher blood-EtOH levels were correlated with lower spontaneous alternation scores. Regardless of the age of onset, EtOH exposed rats were impaired on non-spatial discrimination learning and displayed inflexible behavioral patterns upon reversal learning. Our results indicate that adolescent EtOH exposure changes long-term consumption patterns producing behavioral and neural dysfunctions that persist across the lifespan.
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Affiliation(s)
- Gina M. Fernandez
- Department of Psychology, Binghamton University, State University of New York, Binghamton, New York, United States of America
| | - William N. Stewart
- Department of Psychology, Binghamton University, State University of New York, Binghamton, New York, United States of America
| | - Lisa M. Savage
- Department of Psychology, Binghamton University, State University of New York, Binghamton, New York, United States of America
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Ceballos N, Sharma S. Risk and Resilience: The Role of Brain-derived Neurotrophic Factor in Alcohol Use Disorder. AIMS Neurosci 2016. [DOI: 10.3934/neuroscience.2016.4.398] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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