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Hosseindoost S, Inanloo SH, Pestehei SK, Rahimi M, Yekta RA, Khajehnasiri A, Rad MA, Majedi H, Dehpour AR. Cellular and molecular mechanisms involved in the analgesic effects of botulinum neurotoxin: A literature review. Drug Dev Res 2024; 85:e22177. [PMID: 38528637 DOI: 10.1002/ddr.22177] [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: 01/19/2024] [Revised: 03/02/2024] [Accepted: 03/11/2024] [Indexed: 03/27/2024]
Abstract
Botulinum neurotoxins (BoNTs), derived from Clostridium botulinum, have been employed to treat a range of central and peripheral neurological disease. Some studies indicate that BoNT may be beneficial for pain conditions as well. It has been hypothesized that BoNTs may exert their analgesic effects by preventing the release of pain-related neurotransmitters and neuroinflammatory agents from sensory nerve endings, suppressing glial activation, and inhibiting the transmission of pain-related receptors to the neuronal cell membrane. In addition, there is evidence to suggest that the central analgesic effects of BoNTs are mediated through their retrograde axonal transport. The purpose of this review is to summarize the experimental evidence of the analgesic functions of BoNTs and discuss the cellular and molecular mechanisms by which they can act on pain conditions. Most of the studies reviewed in this article were conducted using BoNT/A. The PubMed database was searched from 1995 to December 2022 to identify relevant literature.
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Affiliation(s)
- Saereh Hosseindoost
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
- Pain Research Center, Neuroscience Institute, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Hassan Inanloo
- Department of Urology, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Khalil Pestehei
- Pain Research Center, Neuroscience Institute, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
- Anesthesia, Critical Care, and Pain Management Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mojgan Rahimi
- Anesthesia, Critical Care, and Pain Management Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Atef Yekta
- Pain Research Center, Neuroscience Institute, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
- Department of Anesthesiology, Critical Care, and Pain, Dr. Ali Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Khajehnasiri
- Pain Research Center, Neuroscience Institute, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
- Department of Anesthesiology, Critical Care, and Pain, Dr. Ali Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Hossein Majedi
- Pain Research Center, Neuroscience Institute, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
- Anesthesia, Critical Care, and Pain Management Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Reza Dehpour
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Goldfarb AH, Kraemer RR, Baiamonte BA. Endogenous Opioids and Exercise-Related Hypoalgesia: Modern Models, Measurement, and Mechanisms of Action. ADVANCES IN NEUROBIOLOGY 2024; 35:137-155. [PMID: 38874722 DOI: 10.1007/978-3-031-45493-6_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
This chapter will focus on the role exercise appears to have on activation and modulating factors within the central nervous system related to endogenous like opioids and its possible contribution to exercise-induced hypoalgesia. The implications for the exercise-mediated alterations of CNS activation factors related to opioids, specifically endorphins and enkephalins, will be presented. In this update, we discuss utilization of new technology and methods to monitor mechanisms of opioid involvement to suggest their contribution with exercise mediated hypoalgesia as well as their relationships to alterations of perceptions of pain and mood. Several special populations were included to suggest that not all individuals will respond to the exercise by mediating hypoalgesia. Factors that may confound the current understanding and suggestions from the recent literature will be presented as well as suggestions for future investigations.
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Affiliation(s)
- Allan H Goldfarb
- University of North Carolina Greensboro, Department of Kinesiology, Greensboro, NC, USA.
| | - Robert R Kraemer
- Southeastern Louisiana University, Department of Kinesiology and Health Studies, Hammond, LA, USA
| | - Brandon A Baiamonte
- Southeastern Louisiana University, Department of Psychology, Hammond, LA, USA
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3
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Lalonde R, Strazielle C. Neurochemical anatomy of dorsal and tonic immobility responses. Pharmacol Biochem Behav 2022; 213:173334. [PMID: 35026175 DOI: 10.1016/j.pbb.2022.173334] [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: 09/16/2021] [Revised: 12/26/2021] [Accepted: 01/06/2022] [Indexed: 11/25/2022]
Abstract
The dorsal immobility response (DIR) and the tonic immobility response (TIR) are cutaneo-motor reflexes typically triggered when a prey is seized. The neurochemical basis of the DIR appears to pass through the basal ganglia via dopaminergic fibers, while the neurochemical basis of the TIR appears to include a circuit comprising the amygdala, the periaqueductal gray (PAG), the dorsal raphe, and the nucleus magnus raphe (NMR) via glutamatergic, serotonergic, cholinergic, GABAergic, and opioid fibers. For the DIR, the basal ganglia also seem to be involved in regard to estradiol, while for the TIR, the HPA axis appears involved at the level of the amygdala and the oral pontine reticular nucleus.
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Affiliation(s)
- Robert Lalonde
- Laboratory of Stress, Immunity, Pathogens (EA7300), Medical School, University of Lorraine, Vandœuvre-les-Nancy, France; EA7475, Department of Psychology, University of Rouen-Normandie, Mont-Saint-Aignan, France
| | - Catherine Strazielle
- Laboratory of Stress, Immunity, Pathogens (EA7300), Medical School, University of Lorraine, Vandœuvre-les-Nancy, France; CHRU Nancy, Vandœuvre-les-Nancy, France.
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4
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Babić Leko M, Hof PR, Šimić G. Alterations and interactions of subcortical modulatory systems in Alzheimer's disease. PROGRESS IN BRAIN RESEARCH 2021; 261:379-421. [PMID: 33785136 DOI: 10.1016/bs.pbr.2020.07.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The pathogenesis of Alzheimer's disease (AD) is not fully understood. Here we summarize current knowledge on the involvement of the serotonergic, noradrenergic, dopaminergic, cholinergic, and opioid systems in AD, emphasizing the importance of interactions between the serotonergic and the other subcortical modulatory systems during the progression of AD. In physiological conditions, all neurotransmitter systems function in concert and are interdependent at both the neuroanatomical and molecular levels. Through their early involvement in AD, cognitive and behavioral abilities that rely on their interactions also become disrupted. Considering that serotonin (5HT) regulates the release of noradrenaline (NA), dopamine (DA) and acetylcholine (ACh), any alteration in 5HT levels leads to disturbance of NA, DA, and ACh homeostasis in the brain. One of the earliest pathological changes during the prodromal phase of AD is a decrease of serotonergic transmission throughout the brain, with serotonergic receptors being also affected. Additionally, serotonergic and noradrenergic as well as serotonergic and dopaminergic nuclei are reciprocally interconnected. As the serotonergic dorsal raphe nucleus (DRN) is affected by pathological changes early in AD, and the noradrenergic locus coeruleus (LC) and dopaminergic ventral tegmental area (VTA) exhibit AD-related pathological changes, their connectivity also becomes altered in AD. Such disrupted interactions among neurotransmitter systems in AD can be used in the development of multi-target drugs. Some of the potential AD therapeutics (such as ASS234, RS67333, tropisetron) target multiple neurotransmitter systems to achieve the best possible improvement of cognitive and behavioral deficits observed in AD. Here, we review how serotonergic system interacts with other subcortical modulatory systems (noradrenergic, dopaminergic, cholinergic, and opioid systems) during AD.
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Affiliation(s)
- Mirjana Babić Leko
- Department for Neuroscience, Croatian Institute for Brain Research, University of Zagreb Medical School, Zagreb, Croatia
| | - Patrick R Hof
- Nash Family Department of Neuroscience, Friedman Brain Institute, and Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Goran Šimić
- Department for Neuroscience, Croatian Institute for Brain Research, University of Zagreb Medical School, Zagreb, Croatia.
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de Paula BB, de Melo JR, Leite-Panissi CRA. Modulation of tonic immobility by GABAA and GABAB receptors of the medial amygdala. Neurosci Lett 2019; 699:189-194. [PMID: 30753913 DOI: 10.1016/j.neulet.2019.01.054] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 01/27/2019] [Accepted: 01/30/2019] [Indexed: 11/27/2022]
Abstract
Tonic immobility (TI) is a temporary state of profound motor inhibition associated with great danger as the attack of a predator. Previous studies carried out in our laboratory evidenced high Fos-IR in the posteroventral region of the medial nucleus of the amygdala (MEA) after induction of the TI response. Here, we investigated the effects of GABAA and GABAB of the MEA on TI duration. Intra-MEA injections of the GABAA agonist muscimol and GABAB agonist baclofen reduced TI response, while intra-MEA injections of the GABAA antagonist bicuculline and GABAB antagonist phaclofen increased the TI response. Moreover, the effects observed with muscimol and baclofen administrations into MEA were blocked by pretreatment with bicuculline and phaclofen (at ineffective doses per se). Finally, the activation of GABAA and GABAB receptors in the MEA did not alter the spontaneous motor activity in the open field test. These data support the role of the GABAergic system of the MEA in the modulation of innate fear.
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Affiliation(s)
- Bruna B de Paula
- Department of Psychology, School of Philosophy, Science and Literature of Ribeirão Preto, University of São Paulo, Ribeirão Preto, 14040-901, SP, Brazil
| | - Jeanne R de Melo
- Department of Psychology, School of Philosophy, Science and Literature of Ribeirão Preto, University of São Paulo, Ribeirão Preto, 14040-901, SP, Brazil
| | - Christie R A Leite-Panissi
- Department of Psychology, School of Philosophy, Science and Literature of Ribeirão Preto, University of São Paulo, Ribeirão Preto, 14040-901, SP, Brazil.
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Lalanne L, Ayranci G, Filliol D, Gavériaux-Ruff C, Befort K, Kieffer BL, Lutz PE. Kappa opioid receptor antagonism and chronic antidepressant treatment have beneficial activities on social interactions and grooming deficits during heroin abstinence. Addict Biol 2017; 22:1010-1021. [PMID: 27001273 PMCID: PMC5590636 DOI: 10.1111/adb.12392] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 01/14/2016] [Accepted: 02/18/2016] [Indexed: 01/11/2023]
Abstract
Addiction is a chronic brain disorder that progressively invades all aspects of personal life. Accordingly, addiction to opiates severely impairs interpersonal relationships, and the resulting social isolation strongly contributes to the severity and chronicity of the disease. Uncovering new therapeutic strategies that address this aspect of addiction is therefore of great clinical relevance. We recently established a mouse model of heroin addiction in which, following chronic heroin exposure, 'abstinent' mice progressively develop a strong and long-lasting social avoidance phenotype. Here, we explored and compared the efficacy of two pharmacological interventions in this mouse model. Because clinical studies indicate some efficacy of antidepressants on emotional dysfunction associated with addiction, we first used a chronic 4-week treatment with the serotonergic antidepressant fluoxetine, as a reference. In addition, considering prodepressant effects recently associated with kappa opioid receptor signaling, we also investigated the kappa opioid receptor antagonist norbinaltorphimine (norBNI). Finally, we assessed whether fluoxetine and norBNI could reverse abstinence-induced social avoidance after it has established. Altogether, our results show that two interspaced norBNI administrations are sufficient both to prevent and to reverse social impairment in heroin abstinent animals. Therefore, kappa opioid receptor antagonism may represent a useful approach to alleviate social dysfunction in addicted individuals.
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Affiliation(s)
- L Lalanne
- Translational Medicine and Neurogenetics Department, Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U 964, CNRS UMR 7104, Université de Strasbourg, France
- Département de Psychiatrie I, Hôpital Civil, Centre Hospitalier Régional Universitaire de Strasbourg, France
| | - G Ayranci
- Translational Medicine and Neurogenetics Department, Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U 964, CNRS UMR 7104, Université de Strasbourg, France
- Douglas Institute Research Centre, McGill University, Canada
| | - D Filliol
- Translational Medicine and Neurogenetics Department, Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U 964, CNRS UMR 7104, Université de Strasbourg, France
- Laboratoire de Neurosciences Cognitives et Adaptatives, UMR 7364, Université de Strasbourg, CNRS, Faculté de Psychologie, Neuropôle de Strasbourg, France
| | - C Gavériaux-Ruff
- Translational Medicine and Neurogenetics Department, Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U 964, CNRS UMR 7104, Université de Strasbourg, France
| | - K Befort
- Translational Medicine and Neurogenetics Department, Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U 964, CNRS UMR 7104, Université de Strasbourg, France
- Laboratoire de Neurosciences Cognitives et Adaptatives, UMR 7364, Université de Strasbourg, CNRS, Faculté de Psychologie, Neuropôle de Strasbourg, France
| | - B L Kieffer
- Translational Medicine and Neurogenetics Department, Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U 964, CNRS UMR 7104, Université de Strasbourg, France
- Douglas Institute Research Centre, McGill University, Canada
| | - P-E Lutz
- Translational Medicine and Neurogenetics Department, Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U 964, CNRS UMR 7104, Université de Strasbourg, France
- McGill Group for Suicide Studies, Douglas Institute Research Centre, McGill University, Canada
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Rocha ADDL, Menescal-de-Oliveira L, da Silva LFS. Effects of human contact and intra-specific social learning on tonic immobility in guinea pigs, Cavia porcellus. Appl Anim Behav Sci 2017. [DOI: 10.1016/j.applanim.2017.02.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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8
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de Freitas RL, Medeiros P, da Silva JA, de Oliveira RC, de Oliveira R, Ullah F, Khan AU, Coimbra NC. The μ1-opioid receptor and 5-HT2A- and 5HT2C-serotonergic receptors of the locus coeruleus are critical in elaborating hypoalgesia induced by tonic and tonic–clonic seizures. Neuroscience 2016; 336:133-145. [DOI: 10.1016/j.neuroscience.2016.08.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 08/21/2016] [Accepted: 08/23/2016] [Indexed: 01/25/2023]
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Ribeiro AB, de Barcellos-Filho PCG, Franci CR, Menescal-de-Oliveira L, Saia RS. Pro-inflammatory cytokines, IL-1β and TNF-α, produce persistent compromise in tonic immobility defensive behaviour in endotoxemia guinea-pigs. Acta Physiol (Oxf) 2016; 218:123-35. [PMID: 27261351 DOI: 10.1111/apha.12729] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 04/19/2016] [Accepted: 06/01/2016] [Indexed: 12/14/2022]
Abstract
AIM Sepsis has been associated with acute behavioural changes in humans and rodents, which consists of a motivational state and an adaptive response that improve survival. However, the involvement of peripheral cytokines synthesized during systemic inflammation as modulators of the tonic immobility (TI) defensive behaviour remains a literature gap. Our purposes were to characterize the TI defensive behaviour in endotoxemia guinea-pigs at acute phase and after recovery from the initial inflammatory challenge. Furthermore, we investigated whether peri-aqueductal grey matter (PAG) exists as a brain structure related to this behaviour and also pro-inflammatory cytokines, tumour necrosis factor (TNF)-α and interleukin (IL)-1β, act at this mesencephalic nucleus. METHODS Endotoxemia was induced by lipopolysaccharide (LPS) administration in guinea-pigs. The parameters evaluated included TI defensive behaviour, survival, cytokines production, as well as neuronal activation and apoptosis in the PAG. RESULTS Endotoxemia guinea-pigs exhibited a reduction in the duration of TI episodes, starting at 2 h after LPS administration and persisting throughout the experimental period evaluated over 7 days. Moreover, endotoxemia increased the c-FOS immunoreactivity of neurones in the ventrolateral PAG (vlPAG), as well as the caspase-3 expression. The LPS microinjection into vlPAG reproduces the same compromise, that is a decrease in the duration of TI defensive behaviour, observed after the peripheral administration. The immunoneutralization against IL-1β and TNF-α into vlPAG reverts all the effects produced by peripheral LPS administration. CONCLUSION Our findings confirm that vlPAG is an important brain structure involved in the behavioural alterations induced by endotoxemia, possibly changing the neuronal activity caused by pro-inflammatory cytokines produced peripherally.
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Affiliation(s)
- A. B. Ribeiro
- Department of Physiology; Ribeirão Preto Medical School; University of São Paulo; Ribeirão Preto São Paulo Brazil
| | - P. C. G. de Barcellos-Filho
- Department of Physiology; Ribeirão Preto Medical School; University of São Paulo; Ribeirão Preto São Paulo Brazil
| | - C. R. Franci
- Department of Physiology; Ribeirão Preto Medical School; University of São Paulo; Ribeirão Preto São Paulo Brazil
| | - L. Menescal-de-Oliveira
- Department of Physiology; Ribeirão Preto Medical School; University of São Paulo; Ribeirão Preto São Paulo Brazil
| | - R. S. Saia
- Department of Physiology; Ribeirão Preto Medical School; University of São Paulo; Ribeirão Preto São Paulo Brazil
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da Silva JA, Biagioni AF, Almada RC, de Souza Crippa JA, Cecílio Hallak JE, Zuardi AW, Coimbra NC. Dissociation between the panicolytic effect of cannabidiol microinjected into the substantia nigra, pars reticulata, and fear-induced antinociception elicited by bicuculline administration in deep layers of the superior colliculus: The role of CB1-cannabinoid receptor in the ventral mesencephalon. Eur J Pharmacol 2015; 758:153-63. [PMID: 25841876 DOI: 10.1016/j.ejphar.2015.03.051] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 03/11/2015] [Accepted: 03/17/2015] [Indexed: 01/17/2023]
Abstract
Many studies suggest that the substantia nigra, pars reticulata (SNpr), a tegmental mesencephalic structure rich in γ-aminobutyric acid (GABA)- and cannabinoid receptor-containing neurons, is involved in the complex control of defensive responses through the neostriatum-nigral disinhibitory and nigro-tectal inhibitory GABAergic pathways during imminently dangerous situations. The aim of the present work was to investigate the role played by CB1-cannabinoid receptor of GABAergic pathways terminal boutons in the SNpr or of SNpr-endocannabinoid receptor-containing interneurons on the effect of intra-nigral microinjections of cannabidiol in the activity of nigro-tectal inhibitory pathways. GABAA receptor blockade in the deep layers of the superior colliculus (dlSC) elicited vigorous defensive behaviour. This explosive escape behaviour was followed by significant antinociception. Cannabidiol microinjection into the SNpr had a clear anti-aversive effect, decreasing the duration of defensive alertness, the frequency and duration of defensive immobility, and the frequency and duration of explosive escape behaviour, expressed by running and jumps, elicited by transitory GABAergic dysfunction in dlSC. However, the innate fear induced-antinociception was not significantly changed. The blockade of CB1 endocannabinoid receptor in the SNpr decreased the anti-aversive effect of canabidiol based on the frequency and duration of defensive immobility, the frequency of escape expressed by running, and both the frequency and duration of escape expressed by jumps. These findings suggest a CB1 mediated endocannabinoid signalling in cannabidiol modulation of panic-like defensive behaviour, but not of innate fear-induced antinociception evoked by GABAA receptor blockade with bicuculline microinjection into the superior colliculus, with a putative activity in nigro-collicular GABAergic pathways.
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Affiliation(s)
- Juliana Almeida da Silva
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Av Bandeirantes, 3900, Ribeirão Preto 14049-900, São Paulo, Brazil; Behavioural Neurosciences Institute (INeC), Av. do Café, 2450, Monte Alegre, Ribeirão Preto 14050-220, São Paulo, Brazil
| | - Audrey Francisco Biagioni
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Av Bandeirantes, 3900, Ribeirão Preto 14049-900, São Paulo, Brazil
| | - Rafael Carvalho Almada
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Av Bandeirantes, 3900, Ribeirão Preto 14049-900, São Paulo, Brazil; Behavioural Neurosciences Institute (INeC), Av. do Café, 2450, Monte Alegre, Ribeirão Preto 14050-220, São Paulo, Brazil
| | - José Alexandre de Souza Crippa
- Department of Neurosciences and Behavioural Sciences, Division of Psychiatry, Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Av. dos Bandeirantes, 3900, Ribeirão Preto 14049-900, São Paulo, Brazil
| | - Jaime Eduardo Cecílio Hallak
- Department of Neurosciences and Behavioural Sciences, Division of Psychiatry, Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Av. dos Bandeirantes, 3900, Ribeirão Preto 14049-900, São Paulo, Brazil
| | - Antônio Waldo Zuardi
- Department of Neurosciences and Behavioural Sciences, Division of Psychiatry, Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Av. dos Bandeirantes, 3900, Ribeirão Preto 14049-900, São Paulo, Brazil
| | - Norberto Cysne Coimbra
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Av Bandeirantes, 3900, Ribeirão Preto 14049-900, São Paulo, Brazil; Behavioural Neurosciences Institute (INeC), Av. do Café, 2450, Monte Alegre, Ribeirão Preto 14050-220, São Paulo, Brazil; Neurobiology of Emotions Research Centre (NAP-USP-NuPNE), Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Av. dos Bandeirantes, 3900, Ribeirão Preto, São Paulo 14049-900, São Paulo, Brazil.
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Ferreira MD, Menescal-de-Oliveira L. Nociceptive vocalization response in guinea pigs modulated by opioidergic, GABAergic and serotonergic neurotransmission in the dorsal raphe nucleus. Brain Res Bull 2014; 106:21-9. [DOI: 10.1016/j.brainresbull.2014.05.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Revised: 05/02/2014] [Accepted: 05/03/2014] [Indexed: 12/01/2022]
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Role of GABAA receptors in dorsal raphe nucleus in stress-induced reinstatement of morphine-conditioned place preference in rats. Psychopharmacology (Berl) 2013; 230:537-45. [PMID: 23812764 PMCID: PMC3840038 DOI: 10.1007/s00213-013-3182-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Accepted: 06/04/2013] [Indexed: 10/26/2022]
Abstract
RATIONALE The serotonin (5-hydroxytryptamine, 5-HT) system plays an important role in stress-related psychiatric disorders and substance abuse. Our data indicate that stress inhibits the dorsal raphe nucleus (DRN)-5-HT system via stimulation of GABA synaptic activity by the stress neurohormone corticotropin-releasing factor and, more recently, that morphine history sensitizes DRN-5-HT neurons to GABAergic inhibitory effects of stress. OBJECTIVES We tested the hypothesis that DRN GABAA receptors contribute to stress-induced reinstatement of morphine-conditioned place preference (CPP). METHODS First, we tested if activation of GABAA receptors in the DRN would reinstate morphine CPP. Second, we tested if blockade of GABAA receptors in the DRN would attenuate swim stress-induced reinstatement of morphine CPP. CPP was induced by morphine (5 mg/kg) in a 4-day conditioning phase followed by a conditioning test. Upon acquiring conditioning criteria, subjects underwent 4 days of extinction training followed by an extinction test. Upon acquiring extinction criteria, animals underwent a reinstatement test. For the first experiment, the GABAA receptor agonist muscimol (50 ng) or vehicle was injected into the DRN prior to the reinstatement test. For the second experiment, the GABAA receptor antagonist bicuculline (75 ng) or vehicle was injected into the DRN prior to a forced swim stress, and then, animals were tested for reinstatement of CPP. RESULTS Intraraphe injection of muscimol reinstated morphine CPP, while intraraphe injection of bicuculline attenuated swim stress-induced reinstatement. CONCLUSIONS These data provide evidence that GABAA receptor-mediated inhibition of the serotonergic DRN contributes to stress-induced reinstatement of morphine CPP.
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Abstract
This paper is the thirty-fifth consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2012 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior (Section 2), and the roles of these opioid peptides and receptors in pain and analgesia (Section 3); stress and social status (Section 4); tolerance and dependence (Section 5); learning and memory (Section 6); eating and drinking (Section 7); alcohol and drugs of abuse (Section 8); sexual activity and hormones, pregnancy, development and endocrinology (Section 9); mental illness and mood (Section 10); seizures and neurologic disorders (Section 11); electrical-related activity and neurophysiology (Section 12); general activity and locomotion (Section 13); gastrointestinal, renal and hepatic functions (Section 14); cardiovascular responses (Section 15); respiration and thermoregulation (Section 16); and immunological responses (Section 17).
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Affiliation(s)
- Richard J Bodnar
- Department of Psychology and Neuropsychology Doctoral Sub-Program, Queens College, City University of New York, Flushing, NY 11367, United States.
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