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Sampedro‐Piquero P, Moreno‐Fernández RD, Begega A, López M, Santín LJ. Long-term consequences of alcohol use in early adolescent mice: Focus on neuroadaptations in GR, CRF and BDNF. Addict Biol 2022; 27:e13158. [PMID: 35229955 DOI: 10.1111/adb.13158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 01/11/2022] [Accepted: 01/26/2022] [Indexed: 01/04/2023]
Abstract
Our aim was to assess the cognitive and emotional state, as well as related-changes in the glucocorticoid receptor (GR), the corticotropin-releasing factor (CRF) and the brain-derived neurotrophic factor (BDNF) expression of adolescent C57BL/6J male mice after a 5-week two-bottle choice protocol (postnatal day [pd]21 to pd52). Additionally, we wanted to analyse whether the behavioural and neurobiological effects observed in late adolescence (pd62) lasted until adulthood (pd84). Behavioural testing revealed that alcohol during early adolescence increased anxiety-like and compulsive-related behaviours, which was maintained in adulthood. Concerning cognition, working memory was only altered in late adolescent mice, whereas object location test performance was impaired in both ages. In contrast, novel object recognition remained unaltered. Immunohistochemical analysis showed that alcohol during adolescence diminished BDNF+ cells in the cingulate cortex, the hippocampal CA1 layer and the central amygdala. Regarding hypothalamic-pituitary-adrenal axis (HPA) functioning, alcohol abuse increased the GR and CRF expression in the hypothalamic paraventricular nucleus and the central amygdala. Besides this, GR density was also higher in the prelimbic cortex and the basolateral amygdala, regardless of the animals' age. Our findings suggest that adolescent alcohol exposure led to long-term behavioural alterations, along with changes in BDNF, GR and CRF expression in limbic brain areas involved in stress response, emotional regulation and cognition.
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Affiliation(s)
- Patricia Sampedro‐Piquero
- Departamento de Psicología Biológica y de la Salud, Facultad de Psicología Universidad Autónoma de Madrid Madrid Spain
| | | | - Azucena Begega
- Departamento de Psicología, Facultad de Psicología Universidad de Oviedo Oviedo Spain
| | - Matías López
- Departamento de Psicología, Facultad de Psicología Universidad de Oviedo Oviedo Spain
| | - Luis J. Santín
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Facultad de Psicología Universidad de Málaga Málaga Spain
- Neuroimmunology and NeuroInflammation Department Instituto de Investigación Biomédica de Málaga‐IBIMA Málaga Spain
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Santos DS, Stein DJ, Medeiros HR, Dos Santos Pereira F, de Macedo IC, Fregni F, Caumo W, Torres ILS. Transcranial direct current stimulation alters anxious-like behavior and neural parameters in rats with chronic pain exposed to alcohol. J Psychiatr Res 2021; 144:369-377. [PMID: 34735841 DOI: 10.1016/j.jpsychires.2021.10.040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/04/2021] [Accepted: 10/25/2021] [Indexed: 11/27/2022]
Abstract
The aim of this study was to evaluate the effects of transcranial direct current stimulation (tDCS) on anxiety-like behavior and neural parameters in rats with chronic pain exposed to alcohol. Thirty-six adult male Wistar rats were randomly assigned to control (CT), neuropathic pain (NP), NPtDCS, NP + alcohol (NPAL), or NPALtDCS groups, subjected to sciatic nerve chronic constriction injury (CCI) and exposed to alcohol (20% v/v solution, 4 g/kg) or vehicle by gavage for 15 days. Afterward, rats were treated using bimodal tDCS (0.5 mA/20 min/8 days) and tested in the open field. Rats were killed 24 h after the last behavioral assessment, and brain and spinal cord tissue samples were collected and processed for NPY immunohistochemistry, expression of Il1a and Il1b in the spinal cord, cerebellum, and hippocampus, and levels of IL-1α and IL-1β in the same brain structures and the striatum. tDCS reverted the anxiety-like behavior induced by CCI and alcohol, and the increased expression of Il1a in the spinal cord induced by alcohol, which increased the expression of Il1b in the cerebellum. In addition, tDCS modulated the hypothalamic NPY-immunoreactivity, increased the levels of IL-1α in the hippocampus (like NP and AL), and increased the expression of Il1b in the spinal cord (like AL). Thus, this study shows that tDCS changes NP and alcohol-induced anxiety-like behavior, possibly through its central modulatory effect of NPY and spinal cord expression of Il1a and Il1b, being considered a treatment option for alcohol and NP-induced anxiety symptoms.
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Affiliation(s)
- Daniela Silva Santos
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Investigations, Center of Experimental Research, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, 90035-007, Brazil; Postgraduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Dirson João Stein
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Investigations, Center of Experimental Research, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, 90035-007, Brazil; Postgraduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Helouise Richardt Medeiros
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Investigations, Center of Experimental Research, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, 90035-007, Brazil; Postgraduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Fernanda Dos Santos Pereira
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Investigations, Center of Experimental Research, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, 90035-007, Brazil
| | - Isabel Cristina de Macedo
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Investigations, Center of Experimental Research, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, 90035-007, Brazil; Universidade Federal do Pampa, Uruguaiana, RS, Brazil
| | - Felipe Fregni
- Laboratory of Neuromodulation, Department of Physical Medicine & Rehabilitation, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard University, Boston, MA, USA
| | - Wolnei Caumo
- Postgraduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Iraci L S Torres
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Investigations, Center of Experimental Research, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, 90035-007, Brazil; Postgraduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
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3
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Santos DS, Medeiros LF, Stein DJ, De Macedo IC, Da Silva Rios DE, De Oliveira C, Toledo RS, Fregni F, Caumo W, Torres ILS. Bimodal transcranial direct current stimulation reduces alcohol consumption and induces long-term neurochemical changes in rats with neuropathic pain. Neurosci Lett 2021; 759:136014. [PMID: 34111512 DOI: 10.1016/j.neulet.2021.136014] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 05/17/2021] [Accepted: 06/03/2021] [Indexed: 10/21/2022]
Abstract
This study aimed to evaluate the effects of repeated bimodal transcranial direct current stimulation (tDCS) on alcohol consumption and immunohistological and neurochemical parameters in nerve-injured rats. Forty-eight adult male Wistar rats were distributed into six groups: control, neuropathic pain (NP) + sham-tDCS, NP + alcohol + sham-tDCS, alcohol + sham-tDCS, alcohol + tDCS, and NP + alcohol + tDCS. NP is induced by chronic sciatic nerve constriction (CCI). The rats were exposed to a 10% alcohol solution by voluntary consumption for 14 days. From the 16th day after surgery, bimodal tDCS was applied for 20 min/day for 8 days. Brain structures were collected to evaluate the number of neuropeptide Y (NPY)-positive neurons, neurites, and argyrophilic grains by immunohistochemistry, and brain-derived neurotrophic factor (BDNF), nerve growth factor (NGF), interleukin (IL)-6, and IL-10 by ELISA. Nerve-injured rats showed a progressive increase in alcohol consumption compared to the non-injured rats. In addition, there was a reduction in voluntary alcohol consumption over time induced by tDCS. Alcohol exposure, chronic pain, and tDCS treatment modulated the central NPY immunoreactivity. tDCS increased the cerebellar levels of IL-6 and IL-10, and CCI and/or tDCS reduced striatal BDNF levels. The current data suggest that tDCS could be a promising non-pharmacological adjuvant to treat patients with chronic pain who use alcohol to relieve their symptoms.
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Affiliation(s)
- Daniela Silva Santos
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Investigations - Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; Postgraduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Liciane Fernandes Medeiros
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Investigations - Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; Postgraduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Postgraduate Program in Health and Human Development, Universidade La Salle, Canoas, RS, Brazil
| | - Dirson João Stein
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Investigations - Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; Postgraduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Isabel Cristina De Macedo
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Investigations - Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Diego Evandro Da Silva Rios
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Investigations - Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Carla De Oliveira
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Investigations - Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Roberta Ströher Toledo
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Investigations - Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; Postgraduate Program in Biological Sciences: Pharmacology and Therapeutics, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Felipe Fregni
- Laboratoryof Neuromodulation, Department of Physical Medicine & Rehabilitation, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard University, Boston, MA, USA
| | - Wolnei Caumo
- Postgraduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Iraci L S Torres
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Investigations - Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; Postgraduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Postgraduate Program in Biological Sciences: Pharmacology and Therapeutics, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Laboratoryof Neuromodulation, Department of Physical Medicine & Rehabilitation, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard University, Boston, MA, USA.
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Mahajan VR, Elvig SK, Vendruscolo LF, Koob GF, Darcey VL, King MT, Kranzler HR, Volkow ND, Wiers CE. Nutritional Ketosis as a Potential Treatment for Alcohol Use Disorder. Front Psychiatry 2021; 12:781668. [PMID: 34916977 PMCID: PMC8670944 DOI: 10.3389/fpsyt.2021.781668] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 11/08/2021] [Indexed: 12/28/2022] Open
Abstract
Alcohol use disorder (AUD) is a chronic, relapsing brain disorder, characterized by compulsive alcohol seeking and disrupted brain function. In individuals with AUD, abstinence from alcohol often precipitates withdrawal symptoms than can be life threatening. Here, we review evidence for nutritional ketosis as a potential means to reduce withdrawal and alcohol craving. We also review the underlying mechanisms of action of ketosis. Several findings suggest that during alcohol intoxication there is a shift from glucose to acetate metabolism that is enhanced in individuals with AUD. During withdrawal, there is a decline in acetate levels that can result in an energy deficit and could contribute to neurotoxicity. A ketogenic diet or ingestion of a ketone ester elevates ketone bodies (acetoacetate, β-hydroxybutyrate and acetone) in plasma and brain, resulting in nutritional ketosis. These effects have been shown to reduce alcohol withdrawal symptoms, alcohol craving, and alcohol consumption in both preclinical and clinical studies. Thus, nutritional ketosis may represent a unique treatment option for AUD: namely, a nutritional intervention that could be used alone or to augment the effects of medications.
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Affiliation(s)
- Vikrant R Mahajan
- Department of Pharmacology, Vanderbilt University, Nashville, TN, United States
| | - Sophie K Elvig
- Integrative Neuroscience Research Branch, National Institute on Drug Abuse, Baltimore, MD, United States
| | - Leandro F Vendruscolo
- Integrative Neuroscience Research Branch, National Institute on Drug Abuse, Baltimore, MD, United States
| | - George F Koob
- Integrative Neuroscience Research Branch, National Institute on Drug Abuse, Baltimore, MD, United States
| | - Valerie L Darcey
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, United States
| | - M Todd King
- National Institute on Alcohol Abuse and Alcoholism, Rockville, MD, United States
| | - Henry R Kranzler
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Nora D Volkow
- National Institute on Alcohol Abuse and Alcoholism, Rockville, MD, United States
| | - Corinde E Wiers
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
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5
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Transcranial Direct Current Stimulation (tDCS) Induces Analgesia in Rats with Neuropathic Pain and Alcohol Abstinence. Neurochem Res 2020; 45:2653-2663. [DOI: 10.1007/s11064-020-03116-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 07/31/2020] [Accepted: 08/15/2020] [Indexed: 02/07/2023]
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6
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Lopes BC, Medeiros LF, Silva de Souza V, Cioato SG, Medeiros HR, Regner GG, Lino de Oliveira C, Fregni F, Caumo W, Torres IL. Transcranial direct current stimulation combined with exercise modulates the inflammatory profile and hyperalgesic response in rats subjected to a neuropathic pain model: Long-term effects. Brain Stimul 2020; 13:774-782. [DOI: 10.1016/j.brs.2020.02.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 02/06/2020] [Accepted: 02/19/2020] [Indexed: 12/12/2022] Open
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7
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Kozlov EM, Grechko AV, Chegodaev YS, Wu WK, Orekhov AN. Contribution of Neurotrophins to the Immune System Regulation and Possible Connection to Alcohol Addiction. BIOLOGY 2020; 9:biology9040063. [PMID: 32231011 PMCID: PMC7235771 DOI: 10.3390/biology9040063] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/18/2020] [Accepted: 03/19/2020] [Indexed: 12/11/2022]
Abstract
The first references to neurotrophic factors date back to the middle of the 20th century when the nerve growth factor (NGF) was first discovered. Later studies delivered a large amount of data on neurotrophic factors. However, many questions regarding neurotrophin signaling still remain unanswered. One of the principal topics in neurotrophin research is their role in the immune system regulation. Another important research question is the possible involvement of neurotrophin signaling in the pathological processes associated with alcoholism. Among known neurotrophins, NT-4 remains the least studied and appears to be involved in alcoholism and chronic stress pathogenesis. In this review we discuss known neurotrophin signaling cascades mediated by different neurotrophin receptors, as well as provide a generalization of the data regarding the influence of neurotrophins NGF, BDNF, and NT-4 on the immune system and their potential contribution to the pathogenesis of alcoholism.
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Affiliation(s)
- Evgenii M. Kozlov
- Laboratory of Clinical Microbiology and Biotechnology of Bacteriophages G.N. Gabrichevsky Moscow Research Institute for Epidemiology and Microbiology, 125212 Moscow, Russia;
| | - Andrey V. Grechko
- Federal Scientific Clinical Center for Resuscitation and Rehabilitation, 109240 Moscow, Russia;
| | - Yegor S. Chegodaev
- I. M. Sechenov First Moscow State Medical University (Sechenov University), 119146 Moscow, Russia;
| | - Wei-Kai Wu
- Department of Internal Medicine, National Taiwan University Hospital, Bei-Hu Branch, Taipei 100, Taiwan;
| | - Alexander N. Orekhov
- Laboratory of Infection Pathology and Molecular Microecology, Institute of Human Morphology, 117418 Moscow, Russia
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia
- Correspondence: ; Tel.: +7-903-169-08-66
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Selank, Peptide Analogue of Tuftsin, Protects Against Ethanol-Induced Memory Impairment by Regulating of BDNF Content in the Hippocampus and Prefrontal Cortex in Rats. Bull Exp Biol Med 2019; 167:641-644. [PMID: 31625062 DOI: 10.1007/s10517-019-04588-9] [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: 02/25/2019] [Indexed: 10/25/2022]
Abstract
The effects of a peptide anxiolytic Selank synthesized on the basis of the endogenous peptide tuftsin on memory impairment and content of brain-derived neurotrophic factor (BDNF) in brain structures were analyzed in outbred rats receiving 10% ethanol as the only source of fluid for 30 weeks. In the object recognition test, Selank (0.3 mg/kg a day, 7 days, intraperitoneally) produced a cognitive-stimulating effect in 9 months rats not exposed to ethanol (p<0.05) and prevented the formation of ethanol-induced memory and attention disturbances (p<0.01) developing during alcohol withdrawal. In ex vivo experiments, Selank prevented ethanol-induced increase in BDNF content in the hippocampus and frontal cortex (p<0.05). These results indicate positive effects of the tuftsin analogue on age-related memory disturbances associated with chronic alcohol intoxication and confirm the involvement of the neurotrophin mechanism related to BDNF production into the effect of Selank.
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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: 42] [Impact Index Per Article: 8.4] [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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Abstract
The innate immune system plays a critical role in the ethanol-induced neuroimmune response in the brain. Ethanol initiates the innate immune response via activation of the innate immune receptors Toll-like receptors (TLRs, e.g., TLR4, TLR3, TLR7) and NOD-like receptors (inflammasome NLRs) leading to a release of a plethora of chemokines and cytokines and development of the innate immune response. Cytokines and chemokines can have pro- or anti-inflammatory properties through which they regulate the immune response. In this chapter, we will focus on key cytokines (e.g., IL-1, IL-6, TNF-α) and chemokines (e.g., MCP-1/CCL2) that mediate the ethanol-induced neuroimmune responses. In this regard, we will use IL-1β, as an example cytokine, to discuss the neuromodulatory properties of cytokines on cellular properties and synaptic transmission. We will discuss their involvement through a set of evidence: (1) changes in gene and protein expression following ethanol exposure, (2) association of gene polymorphisms (humans) and alterations in gene expression (animal models) with increased alcohol intake, and (3) modulation of alcohol-related behaviors by transgenic or pharmacological manipulations of chemokine and cytokine systems. Over the last years, our understanding of the molecular mechanisms mediating cytokine- and chemokine-dependent regulation of immune responses has advanced tremendously, and we review evidence pointing to cytokines and chemokines serving as neuromodulators and regulators of neurotransmission.
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Affiliation(s)
- Marisa Roberto
- Department of Neuroscience, The Scripps Research Institute, La Jolla, CA, USA.
| | - Reesha R Patel
- Department of Neuroscience, The Scripps Research Institute, La Jolla, CA, USA
| | - Michal Bajo
- Department of Neuroscience, The Scripps Research Institute, La Jolla, CA, USA
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11
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Pérez-Martínez IO, Acevedo-Roque CR, Montes-Angeles CD, Martínez M, Miranda F. Mental nerve injury induces novelty seeking behaviour leading to increasing ethanol intake in Wistar rats. Arch Oral Biol 2019; 99:66-72. [PMID: 30639775 DOI: 10.1016/j.archoralbio.2019.01.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Revised: 01/04/2019] [Accepted: 01/07/2019] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Dental treatment and orofacial surgeries may induce chronic neuropathic orofacial pain (CNOP). This kind of pain affects adaptability to environmental changes in both model animals and humans. Part of the adaptation process depends on the ability to distinguish between familiar and novel stimuli. CNOP induces novelty seeking behaviour as a deficit in environmental adaptation. Alternatively, novelty seeking is a sign for susceptibility to the development of substance abuse. Evidence shows that CNOP leads to alcoholism in animal models. The behavioural relationship between CNOP, novelty seeking behaviour and substance abuse is unknown. In this article, we investigate if CNOP produces an increase in novelty seeking and leads to increasing ethanol intake. DESIGN Firstly, we used mental nerve injury as a neuropathic orofacial pain model to evaluate both thermal and mechanical allodynia. We used the novel recognition task to determine novelty seeking behaviour and the drink in darkness protocol to assess ethanol intake. RESULTS Our results show that mental nerve constriction increases novelty seeking behaviour (p = 0.01) and correlates with ethanol binge consumption (r2 = 0.68, p = 0.0008). CONCLUSIONS The present study demonstrates, for the first time, that trigeminal nerve injury, which induces CNOP, is enough to provide novelty seeking behaviour and lead to increasing ethanol intake. The increase of novelty seeking behaviour can serve as a predictor of risk of developing substance abuse. The treatment of CNOP involves a high risk of producing addiction. The level of novelty seeking evaluation in patients with neuropathic pain before treatment is critical.
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Affiliation(s)
- Isaac O Pérez-Martínez
- Sección de Neurobiología de las Sensaciones Orales, Laboratorio de Investigación Odontológica, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México Sección de Neurobiología de las sensaciones orales, Facultad de Estudios Superiores Iztacala, UNAM, Av. de los Barrios 1, Los reyes Ixtacala, Hab Los Reyes Ixtacala Barrio de los Árboles/Barrio de los Héroes, 54090 Tlalnepantla, Mexico.
| | - Casandra R Acevedo-Roque
- Sección de Neurobiología de las Sensaciones Orales, Laboratorio de Investigación Odontológica, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México Sección de Neurobiología de las sensaciones orales, Facultad de Estudios Superiores Iztacala, UNAM, Av. de los Barrios 1, Los reyes Ixtacala, Hab Los Reyes Ixtacala Barrio de los Árboles/Barrio de los Héroes, 54090 Tlalnepantla, Mexico
| | - Claudia D Montes-Angeles
- Sección de Neurobiología de las Sensaciones Orales, Laboratorio de Investigación Odontológica, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México Sección de Neurobiología de las sensaciones orales, Facultad de Estudios Superiores Iztacala, UNAM, Av. de los Barrios 1, Los reyes Ixtacala, Hab Los Reyes Ixtacala Barrio de los Árboles/Barrio de los Héroes, 54090 Tlalnepantla, Mexico
| | - Mariana Martínez
- Sección de Neurobiología de las Sensaciones Orales, Laboratorio de Investigación Odontológica, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México Sección de Neurobiología de las sensaciones orales, Facultad de Estudios Superiores Iztacala, UNAM, Av. de los Barrios 1, Los reyes Ixtacala, Hab Los Reyes Ixtacala Barrio de los Árboles/Barrio de los Héroes, 54090 Tlalnepantla, Mexico
| | - Florencio Miranda
- Laboratorio de Neurofarmacología Conductual, Unidad Interdisciplinaria en ciencias de la Salud y la Eduación. Facultad de Estudios Superiores Iztacala, UNAM, Av De Los Barrios 1, Los Reyes Ixtacala, Hab Los Reyes Ixtacala Barrio de los Árboles/Barrio de los Héroes, 54090 Tlalnepantla, Mexico
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12
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Taurine restores the exploratory behavior following alcohol withdrawal and decreases BDNF mRNA expression in the frontal cortex of chronic alcohol-treated rats. Pharmacol Biochem Behav 2017; 161:6-12. [DOI: 10.1016/j.pbb.2017.09.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 08/31/2017] [Accepted: 09/01/2017] [Indexed: 11/18/2022]
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13
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Schunck RVA, Macedo IC, Laste G, de Souza A, Valle MTC, Salomón JLO, Nunes EA, Campos ACW, Gnoatto SCB, Bergold AM, Konrath EL, Dallegrave E, Arbo MD, Torres ILS, Leal MB. Standardized Passiflora incarnata L. Extract Reverts the Analgesia Induced by Alcohol Withdrawal in Rats. Phytother Res 2017; 31:1199-1208. [PMID: 28568647 DOI: 10.1002/ptr.5839] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 04/14/2017] [Accepted: 05/03/2017] [Indexed: 12/13/2022]
Abstract
Passiflora incarnata L. (Passifloraceae) has been traditionally used for treatment of anxiety, insomnia, drug addiction, mild infections, and pain. The aim of this study was to investigate the effect of a commercial extract of P. incarnata in the analgesia induced by alcohol withdrawal syndrome in rats. In addition, brain-derived neurotrophic factor and interleukin-10 levels were evaluated in prefrontal cortex, brainstem, and hippocampus. Male adult rats received by oral gavage: (1: water group) water for 19 days, 1 day interval and water (8 days); (2: P. incarnata group) water for 19 days, 1 day interval and P. incarnata 200 mg/kg (8 days); (3: alcohol withdrawal group) alcohol for 19 days, 1 day interval and water (8 days); and (4: P. incarnata in alcohol withdrawal) alcohol for 19 days, 1 day interval and P. incarnata 200 mg/kg (8 days). The tail-flick and hot plate tests were used as nociceptive response measures. Confirming previous study of our group, it was showed that alcohol-treated groups presented an increase in the nociceptive thresholds after alcohol withdrawal, which was reverted by P. incarnata, measured by the hot plate test. Besides, alcohol treatment increased brain-derived neurotrophic factor and interleukin-10 levels in prefrontal cortex, which was not reverted by P. incarnata. Considering these results, the P. incarnata treatment might be a potential therapy in the alcohol withdrawal syndrome. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Rebeca Vargas Antunes Schunck
- Programa de Pós-Graduação em Ciências Biológicas - Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500/107, 90050-170, Porto Alegre, RS, Brazil.,Laboratório de Farmacologia e Toxicologia de Produtos Naturais, Departamento de Farmacologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500/202, 90050-170, Porto Alegre, RS, Brazil
| | - Isabel Cristina Macedo
- Laboratório de Farmacologia da Dor e Neuromodulação: Investigações Pré-clínicas, Departamento de Farmacologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite 500, 90050-170, Porto Alegre, RS, Brazil
| | - Gabriela Laste
- Laboratório de Farmacologia da Dor e Neuromodulação: Investigações Pré-clínicas, Departamento de Farmacologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite 500, 90050-170, Porto Alegre, RS, Brazil
| | - Andressa de Souza
- Laboratório de Farmacologia da Dor e Neuromodulação: Investigações Pré-clínicas, Departamento de Farmacologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite 500, 90050-170, Porto Alegre, RS, Brazil
| | - Marina Tuerlinckx Costa Valle
- Programa de Pós-Graduação em Ciências Biológicas - Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500/107, 90050-170, Porto Alegre, RS, Brazil.,Laboratório de Farmacologia e Toxicologia de Produtos Naturais, Departamento de Farmacologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500/202, 90050-170, Porto Alegre, RS, Brazil
| | - Janaína L O Salomón
- Laboratório de Farmacologia e Toxicologia de Produtos Naturais, Departamento de Farmacologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500/202, 90050-170, Porto Alegre, RS, Brazil
| | - Ellen Almeida Nunes
- Laboratório de Farmacologia da Dor e Neuromodulação: Investigações Pré-clínicas, Departamento de Farmacologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite 500, 90050-170, Porto Alegre, RS, Brazil
| | - Andreia Cristina Wildner Campos
- Departamento de Produção de Matéria-Prima, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, 90610-000, Porto Alegre, RS, Brazil
| | - Simone Cristina Baggio Gnoatto
- Departamento de Produção de Matéria-Prima, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, 90610-000, Porto Alegre, RS, Brazil
| | - Ana Maria Bergold
- Departamento de Produção de Matéria-Prima, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, 90610-000, Porto Alegre, RS, Brazil
| | - Eduardo L Konrath
- Departamento de Produção de Matéria-Prima, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, 90610-000, Porto Alegre, RS, Brazil
| | - Eliane Dallegrave
- Departamento de Farmacociências, Universidade Federal de Ciências da Saúde de Porto Alegre, Rua Sarmento Leite, 245, 90050-170, Porto Alegre, RS, Brazil
| | - Marcelo Dutra Arbo
- Laboratório de Toxicologia (LATOX), Departamento de Análises, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, 90050-000, Porto Alegre, RS, Brazil
| | - Iraci L S Torres
- Programa de Pós-Graduação em Ciências Biológicas - Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500/107, 90050-170, Porto Alegre, RS, Brazil.,Laboratório de Farmacologia da Dor e Neuromodulação: Investigações Pré-clínicas, Departamento de Farmacologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite 500, 90050-170, Porto Alegre, RS, Brazil
| | - Mirna Bainy Leal
- Programa de Pós-Graduação em Ciências Biológicas - Neurociências, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500/107, 90050-170, Porto Alegre, RS, Brazil.,Laboratório de Farmacologia e Toxicologia de Produtos Naturais, Departamento de Farmacologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500/202, 90050-170, Porto Alegre, RS, Brazil
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14
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Marshall SA, McKnight KH, Blose AK, Lysle DT, Thiele TE. Modulation of Binge-like Ethanol Consumption by IL-10 Signaling in the Basolateral Amygdala. J Neuroimmune Pharmacol 2017; 12:249-259. [PMID: 27640210 PMCID: PMC5357210 DOI: 10.1007/s11481-016-9709-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 09/09/2016] [Indexed: 12/20/2022]
Abstract
Excessive ethanol consumption alters the neuroimmune system and particularly impacts the cytokine milieu of the CNS. Cytokine dysregulation has been shown to underlie addictive-like behaviors including alcohol abuse; however, many studies focus primarily on the proinflammatory cytokine profile during alcohol dependence. The current study furthers this research by determining the impact of excessive ethanol consumption on interleukin-10 (IL-10) and interleukin-4 (IL-4) activity in a model of non-dependent binge consumption called the "drinking in the dark" (DID) paradigm. Furthermore, the ability of IL-10 to modulate ethanol consumption was tested using site-directed pharmacology. Immunohistochemistry analyses determined that ethanol decreased IL-10 by 50 % in the basolateral amygdala (BLA) but had no effect on IL-4. Neither IL-10 nor IL-4, however, were altered in the central amygdala (CEA). Enzyme linked immunosorbent assays confirmed that IL-10 was decreased in the amygdala but not in the serum, suggesting changes of this cytokine with the DID paradigm are restricted to the central nervous system. Finally, bilateral infusions of IL-10 into the BLA, but not CeA, reduced binge-like drinking and corresponding blood ethanol concentrations without impacting either locomotor activity or anxiety-like behavioral correlates. Together, these data support the idea that alcohol abuse dysregulates specific anti-inflammatory cytokines; however, ameliorating alcohol-induced effects on cytokines, like IL-10, may prove to be an effective therapy in curbing excessive consumption.
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Affiliation(s)
- S Alex Marshall
- Department of Psychology & Neuroscience, The University of North Carolina, Davie Hall, CB# 3270, Chapel Hill, NC, 27599-3270, USA
- Bowles Center for Alcohol Studies, The University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Kyle H McKnight
- Department of Psychology & Neuroscience, The University of North Carolina, Davie Hall, CB# 3270, Chapel Hill, NC, 27599-3270, USA
| | - Allyson K Blose
- Department of Psychology & Neuroscience, The University of North Carolina, Davie Hall, CB# 3270, Chapel Hill, NC, 27599-3270, USA
| | - Donald T Lysle
- Department of Psychology & Neuroscience, The University of North Carolina, Davie Hall, CB# 3270, Chapel Hill, NC, 27599-3270, USA
- Bowles Center for Alcohol Studies, The University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Todd E Thiele
- Department of Psychology & Neuroscience, The University of North Carolina, Davie Hall, CB# 3270, Chapel Hill, NC, 27599-3270, USA.
- Bowles Center for Alcohol Studies, The University of North Carolina, Chapel Hill, NC, 27599, USA.
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15
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Scarabelot VL, Medeiros LF, de Oliveira C, Adachi LNS, de Macedo IC, Cioato SG, de Freitas JS, de Souza A, Quevedo A, Caumo W, Torres ILDS. Melatonin Alters the Mechanical and Thermal Hyperalgesia Induced by Orofacial Pain Model in Rats. Inflammation 2017; 39:1649-59. [PMID: 27378529 DOI: 10.1007/s10753-016-0399-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Melatonin is a neuroendocrine hormone that presents a wide range of physiological functions including regulating circadian rhythms and sleep, enhancing immune function, sleep improvement, and antioxidant effects. In addition, melatonin has received special attention in pain treatment since it is effective and presents few adverse effects. In this study, we evaluated the effect of acute dose of melatonin upon hyperalgesia induced by complete Freund's adjuvant in a chronic orofacial pain model in Sprague-Dawley rats. Nociceptive behavior was assessed by facial Von Frey and the hot plate tests at baseline and thereafter 30, 60, and 120 min, 24 h, and 7 days after melatonin treatment. We demonstrated that acute melatonin administration alters mechanical and thermal hyperalgesia induced by an orofacial pain model (TMD), highlighting that the melatonin effect upon mechanical hyperalgesia remained until 7 days after its administration. Besides, we observed specific tissue profiles of neuroimmunomodulators linked to pain conditions and/or melatonin effect (brain-derived neurotrophic factor, nerve growth factor, and interleukins 6 and 10) in the brainstem levels, and its effects were state-dependent of the baseline of these animals.
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Affiliation(s)
- Vanessa Leal Scarabelot
- Postgraduate Program in Biological Sciences: Physiology, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, 90050-170, Brazil
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Research, Pharmacology Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500 sala 305, Porto Alegre, 90050-170, RS, Brazil
- Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, 90035-003, RS, Brazil
| | - Liciane Fernandes Medeiros
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Research, Pharmacology Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500 sala 305, Porto Alegre, 90050-170, RS, Brazil
- Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, 90035-003, RS, Brazil
| | - Carla de Oliveira
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Research, Pharmacology Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500 sala 305, Porto Alegre, 90050-170, RS, Brazil
- Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, 90035-003, RS, Brazil
- Postgraduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Lauren Naomi Spezia Adachi
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Research, Pharmacology Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500 sala 305, Porto Alegre, 90050-170, RS, Brazil
- Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, 90035-003, RS, Brazil
- Postgraduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Isabel Cristina de Macedo
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Research, Pharmacology Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500 sala 305, Porto Alegre, 90050-170, RS, Brazil
- Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, 90035-003, RS, Brazil
| | - Stefania Giotti Cioato
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Research, Pharmacology Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500 sala 305, Porto Alegre, 90050-170, RS, Brazil
- Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, 90035-003, RS, Brazil
| | - Joice S de Freitas
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Research, Pharmacology Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500 sala 305, Porto Alegre, 90050-170, RS, Brazil
- Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, 90035-003, RS, Brazil
| | - Andressa de Souza
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Research, Pharmacology Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500 sala 305, Porto Alegre, 90050-170, RS, Brazil
| | - Alexandre Quevedo
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Research, Pharmacology Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500 sala 305, Porto Alegre, 90050-170, RS, Brazil
| | - Wolnei Caumo
- Department of Surgery in Medical School, Universidade Federal do Rio Grande do Sul, Porto Alegre, 90035-003, RS, Brazil
| | - Iraci Lucena da Silva Torres
- Postgraduate Program in Biological Sciences: Physiology, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, 90050-170, Brazil.
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Research, Pharmacology Department, Health Basic Sciences Institute, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500 sala 305, Porto Alegre, 90050-170, RS, Brazil.
- Animal Experimentation Unit and Graduate Research Group, Hospital de Clínicas de Porto Alegre, Porto Alegre, 90035-003, RS, Brazil.
- Postgraduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
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17
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Suryanarayanan A, Carter JM, Landin JD, Morrow AL, Werner DF, Spigelman I. Role of interleukin-10 (IL-10) in regulation of GABAergic transmission and acute response to ethanol. Neuropharmacology 2016; 107:181-188. [PMID: 27016017 PMCID: PMC5076550 DOI: 10.1016/j.neuropharm.2016.03.027] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 03/08/2016] [Accepted: 03/21/2016] [Indexed: 12/27/2022]
Abstract
Mounting evidence indicates that ethanol (EtOH) exposure activates neuroimmune signaling. Alterations in pro-inflammatory cytokines after acute and chronic EtOH exposure have been heavily investigated. In contrast, little is known about the regulation of neurotransmission and/or modulation by anti-inflammatory cytokines in the brain after an acute EtOH exposure. Recent evidence suggests that interleukin-10 (IL-10), an anti-inflammatory cytokine, is upregulated during withdrawal from chronic EtOH exposure. In the present study, we show that IL-10 is increased early (1 h) after a single intoxicating dose of EtOH (5 g/kg, intragastric) in Sprague Dawley rats. We also show that IL-10 rapidly regulates GABAergic transmission in dentate gyrus neurons. In brain slice recordings, IL-10 application dose-dependently decreases miniature inhibitory postsynaptic current (mIPSC) area and frequency, and decreases the magnitude of the picrotoxin sensitive tonic current (Itonic), indicating both pre- and postsynaptic mechanisms. A PI3K inhibitor LY294002 (but not the negative control LY303511) ablated the inhibitory effects of IL-10 on mIPSC area and Itonic, but not on mIPSC frequency, indicating the involvement of PI3K in postsynaptic effects of IL-10 on GABAergic transmission. Lastly, we also identify a novel neurobehavioral regulation of EtOH sensitivity by IL-10, whereby IL-10 attenuates acute EtOH-induced hypnosis. These results suggest that EtOH causes an early release of IL-10 in the brain, which may contribute to neuronal hyperexcitability as well as disturbed sleep seen after binge exposure to EtOH. These results also identify IL-10 signaling as a potential therapeutic target in alcohol-use disorders and other CNS disorders where GABAergic transmission is altered.
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Affiliation(s)
- A Suryanarayanan
- Department of Pharmaceutical Sciences, University of the Sciences, Philadelphia College of Pharmacy, Philadelphia, PA 19104, USA.
| | - J M Carter
- Department of Psychology, Center for Development and Behavioral Neuroscience, Binghamton University, Binghamton, NY 13902, USA
| | - J D Landin
- Department of Psychology, Center for Development and Behavioral Neuroscience, Binghamton University, Binghamton, NY 13902, USA
| | - A L Morrow
- Departments of Psychiatry and Pharmacology, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA
| | - D F Werner
- Department of Psychology, Center for Development and Behavioral Neuroscience, Binghamton University, Binghamton, NY 13902, USA
| | - I Spigelman
- Division of Oral Biology & Medicine, School of Dentistry, 63-078 CHS, University of California, Los Angeles, Los Angeles, CA 90095, USA.
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