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Santos GX, Dos SantosTeodoro JE, Fonseca MG, Acunha RM, da Silva Júnior PI, Reis LMD, de Freitas RL, Medeiros P. Mygalin, an Acanthoscurria gomesiana spider-derived synthetic, modulates haloperidol-induced cataleptic state in mice. Neurosci Lett 2024; 820:137572. [PMID: 38072029 DOI: 10.1016/j.neulet.2023.137572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 11/22/2023] [Accepted: 11/26/2023] [Indexed: 12/17/2023]
Abstract
BACKGROUND Haloperidol (HAL) is an antipsychotic used in the treatment of schizophrenia. However, adverse effects are observed in the extrapyramidal tracts due to its systemic action. Natural compounds are among the treatment alternatives widely available in Brazilian biodiversity. Mygalin (MY), a polyamine that was synthesized from a natural molecule present in the hemolymph of the Acanthoscurria gomesian spider, may present an interesting approach. AIMS This study aimed to evaluate the effect of MY in mice subjected to HAL-induced catalepsy. METHODS Male Swiss mice were used. Catalepsy was induced by intraperitoneal administration of HAL (0.5 mg/kg - 1 mL/Kg) diluted in physiological saline. To assess the MY effects on catalepsy, mice were assigned to 4 groups: (1) physiological saline (NaCl 0.9 %); (2) MY at 0.002 mg/Kg; (3) MY at 0.02 mg/Kg; (4) MY at 0.2 mg/Kg. MY or saline was administered intraperitoneally (IP) 10 min b HAL before saline. Catalepsy was evaluated using the bar test at 15, 30, 60, 90, and 120 min after the IP administration of HAL. RESULTS The latency time in the bar test 15, 30, 60, and 90 min increased (p < 0.05) after IP administration of HAL compared to the control group. Catalepsy was attenuated 15, 30, 90, and 120 min (p < 0.05) after the IP-administration of MY at 0.2 mg/Kg; while MY at 0.02 mg/Kg attenuated catalepsy 15 min after the HAL treatment. Our findings showed that MY attenuates the HAL-induced cataleptic state in mice.
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Affiliation(s)
| | | | | | - Renata Moreira Acunha
- Laboratory of Neurosciences of Pain & Emotions and Multi-User Center of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Av. Bandeirantes 3900 Ribeirão Preto, São Paulo 14049-900, Brazil
| | | | | | - Renato Leonardo de Freitas
- Laboratory of Neurosciences of Pain & Emotions and Multi-User Center of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Av. Bandeirantes 3900 Ribeirão Preto, São Paulo 14049-900, Brazil; Interdisciplinary Center for Pain Care, Federal University of São Carlos (UFSCar), Universidade Federal de São Carlos, Rodovia Washington Luiz, Km 235, Caixa Postal 676, CEP 13565-905, SP, Brazil; Behavioural Neurosciences Institute (INeC), Av. do Café 2450 Ribeirão Preto, São Paulo 14050-220, Brazil
| | - Priscila Medeiros
- Interdisciplinary Center for Pain Care, Federal University of São Carlos (UFSCar), Universidade Federal de São Carlos, Rodovia Washington Luiz, Km 235, Caixa Postal 676, CEP 13565-905, SP, Brazil; Department of General and Specialized Nursing - EERP/USP Ribeirão Preto College of Nursing - USP, Brazil; Behavioural Neurosciences Institute (INeC), Av. do Café 2450 Ribeirão Preto, São Paulo 14050-220, Brazil.
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Martins Pereira RC, Medeiros P, Coimbra NC, Machado HR, de Freitas RL. Cortical Neurostimulation and N-Methyl-D-Aspartate Glutamatergic Receptor Activation in the Dysgranular Layer of the Posterior Insular Cortex Modulate Chronic Neuropathic Pain. Neuromodulation 2023; 26:1622-1636. [PMID: 36057495 DOI: 10.1016/j.neurom.2022.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/16/2022] [Accepted: 05/30/2022] [Indexed: 10/14/2022]
Abstract
BACKGROUND AND AIMS The dysgranula parts of the posterior insular cortex (PIC) stimulation (PICS) has been investigated as a new putative cortical target for nonpharmacologic therapies in patients with chronic and neuropathic pain (NP). This work investigates the neural bases of insula neurostimulation-induced antinociception and glutamatergic neurochemical mechanisms recruited by the PICS in animals with neuropathy. MATERIALS AND METHODS Male Wistar rats were submitted to the von Frey and acetone tests to assess mechanical and cold allodynia after 21 days of chronic constriction injury (CCI) of the sciatic nerve or Sham procedure ("false operated"). Either the Cascade Blue 3000 MW lysine-fixable dextran (CBD) or the biotinylated dextran amine 3000 MW (BDA) neural tract tracer was microinjected into the PIC. The electrical PICS was performed at a low frequency (20 μA, 100 Hz) for 15 seconds by a deep brain stimulation device. PIC N-methyl-D-aspartate (NMDA) receptors (NMDAR) blockade with the selective antagonist LY235959 (at 2, 4, and 8 nmol/200 nL) followed by PICS was investigated in rats with CCI. RESULTS PIC sends projections to the caudal pontine reticular nucleus, alpha part of the parvicellular reticular nucleus, dorsomedial tegmental area, and secondary somatosensory cortex (S2). PICS decreased both mechanical and cold allodynia in rats with chronic NP. Blockade of NMDAR in the PIC with LY235959 at 8 nmol attenuated PICS-produced antinociception. CONCLUSION Neuroanatomic projections from the PIC to pontine reticular nuclei and S2 may contribute to chronic NP signaling. PICS attenuates the chronic NP, and the NMDA glutamatergic system in the PIC may be involved in PICS-induced antinociception in rodents with NP conditions.
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Affiliation(s)
- Renata Cristina Martins Pereira
- Multi-User Center of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Laboratory of Neurosciences of Pain & Emotions, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Brain Protection Laboratory in Childhood, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Priscila Medeiros
- Multi-User Center of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Laboratory of Neurosciences of Pain & Emotions, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Department of Neurosciences and Behavioral Sciences. Department of Pharmacology. Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Federal University of São Carlos Pain Clinic, Federal University of São Carlos, São Carlos, São Paulo, Brazil
| | - Norberto Cysne Coimbra
- Multi-User Center of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Department of Neurosciences and Behavioral Sciences. Department of Pharmacology. Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Behavioural Neurosciences Institute, Ribeirão Preto, São Paulo, Brazil
| | - Hélio Rubens Machado
- Brain Protection Laboratory in Childhood, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Renato Leonardo de Freitas
- Multi-User Center of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Laboratory of Neurosciences of Pain & Emotions, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Department of Neurosciences and Behavioral Sciences. Department of Pharmacology. Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Behavioural Neurosciences Institute, Ribeirão Preto, São Paulo, Brazil.
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Moura-Pacheco TL, Martins-Pereira RC, Medeiros P, Sbragia L, Ramos Andrade Leite-Panissi C, Machado HR, Coimbra NC, de Freitas RL. Effect of electrical and chemical (activation versus inactivation) stimulation of the infralimbic division of the medial prefrontal cortex in rats with chronic neuropathic pain. Exp Brain Res 2023; 241:2591-2604. [PMID: 37725136 DOI: 10.1007/s00221-023-06657-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 06/20/2023] [Indexed: 09/21/2023]
Abstract
Neuropathic pain (NP) represents a complex disorder with sensory, cognitive, and emotional symptoms. The medial prefrontal cortex (mPFC) takes critical regulatory roles and may change functionally and morphologically during chronic NP. There needs to be a complete understanding of the neurophysiological and psychopharmacological bases of the NP phenomenon. This study aimed to investigate the participation of the infralimbic division (IFL) of the mPFC in chronic NP, as well as the role of the N-methyl-D-aspartic acid receptor (NMDAr) in the elaboration of chronic NP. Male Wistar rats were submitted to the von Frey and acetone tests to assess mechanical and cold allodynia after 21 days of chronic constriction injury (CCI) of the sciatic nerve or Sham-procedure ("false operated"). Electrical neurostimulation of the IFL/mPFC was performed by low-frequency stimuli (20 μA, 100 Hz) applied for 15 s by deep brain stimulation (DBS) device 21 days after CCI. Either cobalt chloride (CoCl2 at 1.0 mM/200 nL), NMDAr agonist (at 0.25, 1.0, and 2.0 nmol/200 nL) or physiological saline (200 nL) was administered into the IFL/mPFC. CoCl2 administration in the IFL cortex did not alter either mechanical or cold allodynia. DBS stimulation of the IFL cortex decreased mechanical allodynia in CCI rats. Chemical stimulation of the IFL cortex by an NMDA agonist (at 2.0 nmol) decreased mechanical allodynia. NMDA at any dose (0.25, 1.0, and 2.0 nmol) reduced the flicking/licking duration in the cold test. These findings suggest that the IFL/mPFC and the NMDAr of the neocortex are involved in attenuating chronic NP in rats.
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Affiliation(s)
- Thais Lohanny Moura-Pacheco
- Multi-User Center of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
- Laboratory of Neurosciences of Pain and Emotions, Department of Surgery and Anatomy, FMRP-USP, Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
- Pediatric Surgery Laboratory, Department of Surgery and Anatomy, FMRP-USP, Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
| | - Renata Cristina Martins-Pereira
- Multi-User Center of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
- Laboratory of Neurosciences of Pain and Emotions, Department of Surgery and Anatomy, FMRP-USP, Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
- Protection Laboratory in Childhood, Division of Neurosurgery, Department of Surgery and Anatomy, FMRP-USP, Avenida Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
| | - Priscila Medeiros
- Multi-User Center of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
- Laboratory of Neurosciences of Pain and Emotions, Department of Surgery and Anatomy, FMRP-USP, Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, FMRP-USP, Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
- Department of General and Specialized Nursing, Ribeirão Preto Nursing School of the University of São Paulo (EERP-USP), Avenida Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
| | - Lourenço Sbragia
- Pediatric Surgery Laboratory, Department of Surgery and Anatomy, FMRP-USP, Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
| | - Christie Ramos Andrade Leite-Panissi
- Department of Psychology,, Faculty of Philosophy, Science and Letters of Ribeirão Preto of the University of São Paulo (FFCLRP-USP), Ribeirão Preto, SP, 14040-901, Brazil
| | - Hélio Rubens Machado
- Multi-User Center of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
- Department of Psychology,, Faculty of Philosophy, Science and Letters of Ribeirão Preto of the University of São Paulo (FFCLRP-USP), Ribeirão Preto, SP, 14040-901, Brazil
| | - Norberto Cysne Coimbra
- Multi-User Center of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, FMRP-USP, Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
| | - Renato Leonardo de Freitas
- Multi-User Center of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil.
- Laboratory of Neurosciences of Pain and Emotions, Department of Surgery and Anatomy, FMRP-USP, Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil.
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Medeiros AC, Medeiros P, Ruggiero RN, De Gregorio D, Gobbi G, Silva Júnior PI, Dos Santos WF, Coimbra NC, de Freitas RL. Acanthoscurria gomesiana spider-derived Mygalin in the prelimbic prefrontal cortex modulates neuropathic pain and depression comorbid. J Biochem Mol Toxicol 2023:e23353. [PMID: 37069807 DOI: 10.1002/jbt.23353] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 01/04/2023] [Accepted: 03/20/2023] [Indexed: 04/19/2023]
Abstract
Depression has a high rate of comorbidity with neuropathic pain. This study aims to investigate the effect of Mygalin, an acylpolyamine synthesized from a natural molecule in the hemolymph of the Acanthoscurria gomesiana spider, injected into the prelimbic (PrL) region of the medial prefrontal cortex on chronic neuropathic pain and depression comorbidity in rats. To investigate that comorbidity, neuropathic pain was induced by chronic constriction injury (CCI) of the sciatic nerve in male Wistar rats. The biotinylated biodextran amine (BDA) bidirectional neural tract tracer was microinjected into the PrL cortex to study brain connections. Rodents were further subjected to von Frey (mechanical allodynia), acetone (cold allodynia), and forced swim (depressive-like behavior) tests. BDA neural tract tracer-labeled perikarya were found in the dorsal columns of the periaqueductal gray matter (dPAG) and the dorsal raphe nucleus (DRN). Neuronal activity of DRN neurons decreased in CCI rats. However, PrL cortex treatment with Mygalin increased the number of spikes on DRN neurons. Mygalin treatment in the PrL cortex decreased both mechanical and cold allodynia and immobility behavior in CCI rats. PrL cortex treatment with N-methyl-D-aspartate (NMDA) receptor receptors attenuated the analgesic and antidepressive effects caused by Mygalin. The PrL cortex is connected with the dPAG and DRN, and Mygalin administration into the PrL increased the activity of DRN neurons. Mygalin in the PrL cortex produced antinociceptive and antidepressive-like effects, and the NMDA agonist reversed these effects.
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Affiliation(s)
- Ana Carolina Medeiros
- Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Multi-User Center of Neuroelectrophysiology, Ribeirão Preto, São Paulo, Brazil
- Laboratory of Neuroscience of Pain & Emotions, Department of Surgery and Anatomy, FMRP-USP, Ribeirão Preto, São Paulo, Brazil
- Department of General and Specialized Nursing, Ribeirão Preto Nursing School of the University of São Paulo (EERP-USP), Ribeirão Preto, Brazil
- Department of Neuroscience and Behavioral Sciences, FMRP-USP, Ribeirão Preto, São Paulo, Brazil
| | - Priscila Medeiros
- Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Multi-User Center of Neuroelectrophysiology, Ribeirão Preto, São Paulo, Brazil
- Laboratory of Neuroscience of Pain & Emotions, Department of Surgery and Anatomy, FMRP-USP, Ribeirão Preto, São Paulo, Brazil
- Department of General and Specialized Nursing, Ribeirão Preto Nursing School of the University of São Paulo (EERP-USP), Ribeirão Preto, Brazil
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, FMRP-USP, Ribeirão Preto, São Paulo, Brazil
- Interdisciplinary Center for Pain Care, Federal University of São Carlos (UFSCar), São Carlos, São Paulo, Brazil
| | - Rafael Naime Ruggiero
- Department of Neuroscience and Behavioral Sciences, FMRP-USP, Ribeirão Preto, São Paulo, Brazil
- Epilepsy Research Laboratory, Department of Neuroscience and Behavioural Sciences, FMRP-USP, Ribeirão Preto, São Paulo, Brazil
| | - Danilo De Gregorio
- Vita-Salute San Raffaele University and IRCCS San Raffaele Hospital, Milan, Italy
- Department of Psychiatry, Neurobiological Psychiatry Unit, Faculty of Medicine and Health Sciences, McGill University, Montreal, Canada
| | - Gabriella Gobbi
- Department of Psychiatry, Neurobiological Psychiatry Unit, Faculty of Medicine and Health Sciences, McGill University, Montreal, Canada
| | - Pedro Ismael Silva Júnior
- Laboratory for Applied Toxinology (LETA) - Center of Toxins, Immune-Response and Cell Signaling - CeTICS/CEPID, Butantan Institute, Sao Paulo, Brazil
| | - Wagner Ferreira Dos Santos
- Neurobiology and Venoms Laboratory, Department of Biology, Ribeirão Preto School of Philosophy, Sciences and Literature of the University of São Paulo (FFCLRP-USP), Ribeirão Preto, São Paulo, Brazil
| | - Norberto Cysne Coimbra
- Laboratory of Neuroscience of Pain & Emotions, Department of Surgery and Anatomy, FMRP-USP, Ribeirão Preto, São Paulo, Brazil
- Department of Neuroscience and Behavioral Sciences, FMRP-USP, Ribeirão Preto, São Paulo, Brazil
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, FMRP-USP, Ribeirão Preto, São Paulo, Brazil
- Behavioural Neurosciences Institute (INeC), Ribeirão Preto, São Paulo, Brazil
| | - Renato Leonardo de Freitas
- Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Multi-User Center of Neuroelectrophysiology, Ribeirão Preto, São Paulo, Brazil
- Laboratory of Neuroscience of Pain & Emotions, Department of Surgery and Anatomy, FMRP-USP, Ribeirão Preto, São Paulo, Brazil
- Department of Neuroscience and Behavioral Sciences, FMRP-USP, Ribeirão Preto, São Paulo, Brazil
- Behavioural Neurosciences Institute (INeC), Ribeirão Preto, São Paulo, Brazil
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Medeiros P, Medeiros AC, Coimbra JPC, de Paiva Teixeira LEP, Salgado-Rohner CJ, da Silva JA, Coimbra NC, de Freitas RL. Physical, Emotional, and Social Pain During COVID-19 Pandemic-Related Social Isolation. Trends in Psychol 2022. [PMCID: PMC8886700 DOI: 10.1007/s43076-022-00149-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The socio-emotional condition during the COVID-19 pandemic subsidises the (re)modulation of interactive neural circuits underlying risk assessment behaviour at the physical, emotional, and social levels. Experiences of social isolation, exclusion, or affective loss are generally considered some of the most “painful” things that people endure. The threats of social disconnection are processed by some of the same neural structures that process basic threats to survival. The lack of social connection can be “painful” due to an overlap in the neural circuitry responsible for both physical and emotional pain related to feelings of social rejection. Indeed, many of us go to great lengths to avoid situations that may engender these experiences. Accordingly, this work focuses on pandemic times; the somatisation mentioned above seeks the interconnection and/or interdependence between neural systems related to emotional and cognitive processes such that a person involved in an aversive social environment becomes aware of himself, others, and the threatening situation experienced and takes steps to avoid daily psychological and neuropsychiatric effects. Social distancing during isolation evokes the formation of social distress, increasing the intensity of learned fear that people acquire, consequently enhancing emotional and social pain.
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Affiliation(s)
- Priscila Medeiros
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, São Paulo, Ribeirão Preto 14049-900 Brazil
- Laboratory of Neurosciences of Pain & Emotions and Multi-User Centre of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Av. Bandeirantes, 3900, São Paulo, Ribeirão Preto 14049-900 Brazil
| | - Ana Carolina Medeiros
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, São Paulo, Ribeirão Preto 14049-900 Brazil
- Laboratory of Neurosciences of Pain & Emotions and Multi-User Centre of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Av. Bandeirantes, 3900, São Paulo, Ribeirão Preto 14049-900 Brazil
- Behavioural Neurosciences Institute (INeC), Av. do Café, 2450, São Paulo, Ribeirão Preto 14050-220 Brazil
| | - Jade Pisssamiglio Cysne Coimbra
- Pontificial Catholic University of Campinas (PUC-Campinas), Prof Dr Euryclides de Jesus Zerbini Str., 1516, Parque Rural Fazenda Santa Cândida, Campinas, São Paulo, 13087-571 Brazil
| | | | - Carlos José Salgado-Rohner
- NeuroSmart Lab, International School of Economics and Administrative Sciences, Universidad de La Sabana, Chia, Colombia
| | - José Aparecido da Silva
- Laboratory of Psychophysics, Perception, Psychometrics, and Pain, Department of Psychology, Ribeirão Preto School of Philosophy, Sciences and Literature of the University of São Paulo (FFCLRP-USP), São Paulo, Ribeirão Preto 14049-901 Brazil
| | - Norberto Cysne Coimbra
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, São Paulo, Ribeirão Preto 14049-900 Brazil
- Behavioural Neurosciences Institute (INeC), Av. do Café, 2450, São Paulo, Ribeirão Preto 14050-220 Brazil
| | - Renato Leonardo de Freitas
- Laboratory of Neurosciences of Pain & Emotions and Multi-User Centre of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Av. Bandeirantes, 3900, São Paulo, Ribeirão Preto 14049-900 Brazil
- Behavioural Neurosciences Institute (INeC), Av. do Café, 2450, São Paulo, Ribeirão Preto 14050-220 Brazil
- Biomedical Sciences Institute, Federal University of Alfenas (UNIFAL-MG), Gabriel Monteiro da Silva Str., 700, Alfenas, Minas Gerais 37130-000 Brazil
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Negrini-Ferrari SE, Medeiros P, Malvestio RB, de Oliveira Silva M, Medeiros AC, Coimbra NC, Machado HR, de Freitas RL. The primary motor cortex electrical and chemical stimulation attenuates the chronic neuropathic pain by activation of the periaqueductal grey matter: The role of NMDA receptors. Behav Brain Res 2021; 415:113522. [PMID: 34391797 DOI: 10.1016/j.bbr.2021.113522] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/31/2021] [Accepted: 08/09/2021] [Indexed: 01/01/2023]
Abstract
BACKGROUND Motor cortex stimulation (MCS) is proper as a non-pharmacological therapy for patients with chronic and neuropathic pain (NP). AIMS This work aims to investigate if the MCS in the primary motor cortex (M1) produces analgesia and how the MCS could interfere in the MCS-induced analgesia. Also, to elucidate if the persistent activation of N-methyl-d-aspartic acid receptor (NMDAr) in the periaqueductal grey matter (PAG) can contribute to central sensitisation of the NP. METHODS Male Wistar rats were submitted to the von Frey test to evaluate the mechanical allodynia after 21 days of chronic constriction injury (CCI) of the sciatic nerve. The MCS was performed with low-frequency (20 μA, 100 Hz) currents during 15 s by a deep brain stimulation (DBS) device. Moreover, the effect of M1-treatment with an NMDAr agonist (at 2, 4, and 8 nmol) was investigated in CCI rats. The PAG dorsomedial column (dmPAG) was pretreated with the NMDAr antagonist LY 235959 (at 8 nmol), followed by MCS. RESULTS The MCS decreased the mechanical allodynia in rats with chronic NP. The M1-treatment with an NMDA agonist at 2 and 8 nmol reduced the mechanical allodynia in CCI rats. In addition, dmPAG-pretreatment with LY 235959 at 8 nmol attenuated the mechanical allodynia evoked by MCS. CONCLUSION The M1 cortex glutamatergic system is involved in the modulation of chronic NP. The analgesic effect of MCS may depend on glutamate signaling recruitting NMDAr located on PAG neurons in rodents with chronic NP.
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Affiliation(s)
- Sylmara Esther Negrini-Ferrari
- Laboratory of Neurosciences of Pain & Emotions and Multi-User Centre of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo, Brazil; Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Priscila Medeiros
- Laboratory of Neurosciences of Pain & Emotions and Multi-User Centre of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo, Brazil; Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Rafael Braghetto Malvestio
- Laboratory of Neurosciences of Pain & Emotions and Multi-User Centre of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo, Brazil; Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Mariana de Oliveira Silva
- Laboratory of Neurosciences of Pain & Emotions and Multi-User Centre of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo, Brazil; Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Ana Carolina Medeiros
- Laboratory of Neurosciences of Pain & Emotions and Multi-User Centre of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo, Brazil; Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Norberto Cysne Coimbra
- Laboratory of Neurosciences of Pain & Emotions and Multi-User Centre of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo, Brazil; Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil; Behavioural Neurosciences Institute (INeC), Av. do Café, 2450, Ribeirão Preto, São Paulo, 14050-220, Brazil
| | - Helio Rubens Machado
- Laboratory of Neurosciences of Pain & Emotions and Multi-User Centre of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo, Brazil; Brain Protection Laboratory in Childhood, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Avenida Bandeirantes, 3900, Ribeirão Preto, 14049-900, São Paulo, Brazil
| | - Renato Leonardo de Freitas
- Laboratory of Neurosciences of Pain & Emotions and Multi-User Centre of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo, Brazil; Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil; Biomedical Sciences Institute, Federal University of Alfenas (UNIFAL-MG), Str. Gabriel Monteiro da Silva, 700, Alfenas, 37130-000, Minas Gerais, Brazil; Behavioural Neurosciences Institute (INeC), Av. do Café, 2450, Ribeirão Preto, São Paulo, 14050-220, Brazil.
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Medeiros P, Dos Santos IR, Júnior IM, Palazzo E, da Silva JA, Machado HR, Ferreira SH, Maione S, Coimbra NC, de Freitas RL. An Adapted Chronic Constriction Injury of the Sciatic Nerve Produces Sensory, Affective, and Cognitive Impairments: A Peripheral Mononeuropathy Model for the Study of Comorbid Neuropsychiatric Disorders Associated with Neuropathic Pain in Rats. Pain Med 2021; 22:338-351. [PMID: 32875331 DOI: 10.1093/pm/pnaa206] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Chronic constriction injury (CCI) is a model of neuropathic pain induced by four loose ligatures around the sciatic nerve. This work aimed to investigate the sensory, affective, cognitive, and motor changes induced by an adaptation of the CCI model by applying a single ligature around the sciatic nerve. METHODS Mechanical allodynia was measured from day 1 to day 28 postsurgery by the von Frey test. The beam walking test (BWT) was conducted weekly until 28 days after surgery. Anxiety- and depression-like behaviors, and cognitive performance were assessed through the open field (OF), forced swimming (FS), and novel object recognition (NOR) tests, respectively, 21 days after surgery. RESULTS The two CCI models, both Bennett and Xie's model (four ligatures of the sciatic nerve) and a modification of it (one ligature), induced mechanical allodynia, increased immobility in the FS, and reduced recognition index in the NOR. The exploratory behavior and time spent in the central part of the arena decreased, while the defensive behavior increased in the OF. The animals subjected to the two CCI models showed motor alterations in the BWT; however, autotomy was observed only in the group with four ligatures and not in the group with a single ligature. CONCLUSIONS Overall these results demonstrate that our adapted CCI model, using a single ligature around the sciatic nerve, induces sensory, affective, cognitive, and motor alterations comparable to the CCI model with four ligatures without generating autotomy. This adaptation to the CCI model may therefore represent an appropriate and more easily performed model for inducing neuropathic pain and study underlying mechanisms and effective treatments.
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Affiliation(s)
- Priscila Medeiros
- Laboratory of Neurosciences of Pain & Emotions and Neuroelectrophysiology Multi-User Centre, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil.,Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil.,Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Ieda Regina Dos Santos
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil
| | - Ivair Matias Júnior
- Laboratory of Pediatric Surgery, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Enza Palazzo
- Division of Pharmacology, Department of Experimental Medicine, University of Campania "L. Vanvitelli," Naples, Italy
| | - José Aparecido da Silva
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil.,Department of Psychology, Ribeirão Preto School of Philosophy, Sciences and Literature of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil.,Psychology Department, Federal University of Juiz de Fora (UFJF-MG), Juiz de Fora, Minas Gerais, Brazil
| | - Hélio Rubens Machado
- Laboratory of Neurosciences of Pain & Emotions and Neuroelectrophysiology Multi-User Centre, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil.,Laboratory of Pediatric Surgery, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Sérgio Henrique Ferreira
- Laboratory of Neurosciences of Pain & Emotions and Neuroelectrophysiology Multi-User Centre, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil.,Biomedical Sciences Institute, Federal University of Alfenas (UNIFAL-MG), Str. Gabriel Monteiro da Silva, Alfenas, Minas Gerais, Brazil
| | - Sabatino Maione
- Division of Pharmacology, Department of Experimental Medicine, University of Campania "L. Vanvitelli," Naples, Italy.,IRCCS Neuromed, 86077, Pozzilli-Caserta, Italy
| | - Norberto Cysne Coimbra
- Laboratory of Neurosciences of Pain & Emotions and Neuroelectrophysiology Multi-User Centre, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil.,Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil.,Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Renato Leonardo de Freitas
- Laboratory of Neurosciences of Pain & Emotions and Neuroelectrophysiology Multi-User Centre, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil.,Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil.,Department of Psychology, Ribeirão Preto School of Philosophy, Sciences and Literature of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil.,Biomedical Sciences Institute, Federal University of Alfenas (UNIFAL-MG), Str. Gabriel Monteiro da Silva, Alfenas, Minas Gerais, Brazil
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De Medeiros P, Medeiros AC, Pereira Martins R, Negrini-Ferrari SE, Almeida Da Silva J, Da Silva JA, Cysne Coimbra N, Leonardo de Freitas R. Modelos neuropsicobiológicos para estudo da dor e das emoções. Psipesq 2020. [DOI: 10.34019/1982-1247.2020.v14.30596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Dor é uma experiência pessoal e subjetiva que pode apenas ser sentida pelo sofredor. A dor aguda tem a finalidade de avisar o indivíduo que algo está errado. Contudo, a dor crônica (DC) é um problema global de saúde, que afeta a qualidade de vida e torna o indivíduo parcial ou totalmente incapacitado. A pesquisa básica utiliza diversos modelos animais para o estudo da dor aguda ou crônica, bem como para o estudo das principais comorbidades oriundas de sua cronificação como a ansiedade e a depressão. Esta revisão aborda os modelos animais mais comumente utilizados neste contexto.
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Abad A, da Silva JA, de Paiva Teixeira L, Antonelli-Ponti M, Bastos S, Mármora C, Campos L, Paiva S, de Freitas RL, da Silva JA. Evaluation of Fear and Peritraumatic Distress during COVID-19 Pandemic in Brazil. ACTA ACUST UNITED AC 2020. [DOI: 10.4236/aid.2020.103019] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Medeiros P, de Freitas RL, Boccella S, Iannotta M, Belardo C, Mazzitelli M, Romano R, De Gregorio D, Coimbra NC, Palazzo E, Maione S. Characterization of the sensory, affective, cognitive, biochemical, and neuronal alterations in a modified chronic constriction injury model of neuropathic pain in mice. J Neurosci Res 2019; 98:338-352. [PMID: 31396990 DOI: 10.1002/jnr.24501] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 06/24/2019] [Accepted: 07/08/2019] [Indexed: 12/12/2022]
Abstract
The chronic constriction injury (CCI) of the sciatic nerve is a nerve injury-based model of neuropathic pain (NP). Comorbidities of NP such as depression, anxiety, and cognitive deficits are associated with a functional reorganization of the medial prefrontal cortex (mPFC). Here, we have employed an adapted model of CCI by placing one single loose ligature around the sciatic nerve in mice for investigating the alterations in sensory, motor, affective, and cognitive behavior and in electrophysiological and biochemical properties in the prelimbic division (PrL) of the mPFC. Our adapted model of CCI induced mechanical allodynia, motor, and cognitive impairments and anxiety- and depression-like behavior. In the PrL division of mPFC was observed an increase in GABA and a decrease in d-aspartate levels. Moreover an increase in the activity of neurons responding to mechanical stimulation with an excitation, mPFC (+), and a decrease in those responding with an inhibition, mPFC (-), was found. Altogether these findings demonstrate that a single ligature around the sciatic nerve was able to induce sensory, affective, cognitive, biochemical, and functional alterations already observed in other neuropathic pain models and it may be an appropriate and easily reproducible model for studying neuropathic pain mechanisms and treatments.
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Affiliation(s)
- Priscila Medeiros
- Division of Pharmacology, Department of Experimental Medicine, Università degli Studi della Campania Luigi Vanvitelli, Naples, Italy.,Laboratory of Neurosciences of Pain & Emotions and Multi-User Centre of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto (SP), Brazil.,Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, FMRP-USP, Ribeirão Preto, Brazil.,Behavioural Neurosciences Institute (INeC), Ribeirão Preto, Brazil
| | - Renato Leonardo de Freitas
- Division of Pharmacology, Department of Experimental Medicine, Università degli Studi della Campania Luigi Vanvitelli, Naples, Italy.,Laboratory of Neurosciences of Pain & Emotions and Multi-User Centre of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto (SP), Brazil.,Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, FMRP-USP, Ribeirão Preto, Brazil.,Behavioural Neurosciences Institute (INeC), Ribeirão Preto, Brazil.,Biomedical Sciences Institute, Federal University of Alfenas (UNIFAL), Alfenas (MG), Brazil
| | - Serena Boccella
- Division of Pharmacology, Department of Experimental Medicine, Università degli Studi della Campania Luigi Vanvitelli, Naples, Italy
| | - Monica Iannotta
- Division of Pharmacology, Department of Experimental Medicine, Università degli Studi della Campania Luigi Vanvitelli, Naples, Italy
| | - Carmela Belardo
- Division of Pharmacology, Department of Experimental Medicine, Università degli Studi della Campania Luigi Vanvitelli, Naples, Italy
| | - Mariacristina Mazzitelli
- Division of Pharmacology, Department of Experimental Medicine, Università degli Studi della Campania Luigi Vanvitelli, Naples, Italy
| | - Rosaria Romano
- Division of Pharmacology, Department of Experimental Medicine, Università degli Studi della Campania Luigi Vanvitelli, Naples, Italy
| | - Danilo De Gregorio
- Neurobiological Psychiatry Unit, Department of Psychiatry, McGill University, Montreal, QC, Canada
| | - Norberto Cysne Coimbra
- Laboratory of Neurosciences of Pain & Emotions and Multi-User Centre of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto (SP), Brazil.,Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, FMRP-USP, Ribeirão Preto, Brazil.,Behavioural Neurosciences Institute (INeC), Ribeirão Preto, Brazil
| | - Enza Palazzo
- Division of Pharmacology, Department of Experimental Medicine, Università degli Studi della Campania Luigi Vanvitelli, Naples, Italy
| | - Sabatino Maione
- Division of Pharmacology, Department of Experimental Medicine, Università degli Studi della Campania Luigi Vanvitelli, Naples, Italy
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Medeiros P, Negrini-Ferrari SE, Medeiros AC, Ferreira LL, da Silva JRT, da Silva JA, Coimbra NC, de Freitas RL. The Primary Motor Cortex Stimulation Attenuates Cold Allodynia in a Chronic Peripheral Neuropathic Pain Condition in <i>Rattus norvegicus</i>. ACTA ACUST UNITED AC 2019. [DOI: 10.4236/wjns.2019.93009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Calvo F, Lobão-Soares B, de Freitas RL, Paschoalin-Maurin T, Dos Anjos-Garcia T, Medeiros P, da Silva JA, Lovick TA, Coimbra NC. The endogenous opioid system modulates defensive behavior evoked by Crotalus durissus terrificus: Panicolytic-like effect of intracollicular non-selective opioid receptors blockade. J Psychopharmacol 2019; 33:51-61. [PMID: 30407114 DOI: 10.1177/0269881118806301] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND There is a controversy regarding the key role played by opioid peptide neurotransmission in the modulation of panic-attack-related responses. AIMS Using a prey versus rattlesnakes paradigm, the present work investigated the involvement of the endogenous opioid peptide-mediated system of the inferior colliculus in the modulation of panic attack-related responses. METHODS Wistar rats were pretreated with intracollicular administration of either physiological saline or naloxone at different concentrations and confronted with rattlesnakes ( Crotalus durissus terrificus). The prey versus rattlesnake confrontations were performed in a polygonal arena for snakes. The defensive behaviors displayed by prey (defensive attention, defensive immobility, escape response, flat back approach and startle) were recorded twice: firstly, over a period of 15 min the presence of the predator and a re-exposure was performed 24 h after the confrontation, when animals were exposed to the experimental enclosure without the rattlesnake. RESULTS The intramesencephalic non-specific blockade of opioid receptors with microinjections of naloxone at higher doses decreased both anxiety- (defensive attention and flat back approach) and panic attack-like (defensive immobility and escape) behaviors, evoked in the presence of rattlesnakes and increased non-defensive responses. During the exposure to the experimental context, there was a decrease in duration of defensive attention. CONCLUSIONS These findings suggest a panicolytic-like effect of endogenous opioid receptors antagonism in the inferior colliculus on innate (panic attack) and conditioned (anticipatory anxiety) fear in rats threatened by rattlesnakes.
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Affiliation(s)
- Fabrício Calvo
- 1 Laboratory of Neuroanatomy & Neuropsychobiology, Department of Pharmacology, School of Medicine of Ribeirão Preto of the University of São Paulo (FMRP-USP), Ribeirão Preto (SP), Brazil.,3 Department of Pharmacology, São Lucas College, Porto Velho (RO), Brazil.,4 Aparício Carvalho Integrative College, Porto Velho (RO), Brazil.,9 Ophidiarium LNN-FMRP-USP/INeC, Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Ribeirão Preto (SP), Brazil
| | - Bruno Lobão-Soares
- 1 Laboratory of Neuroanatomy & Neuropsychobiology, Department of Pharmacology, School of Medicine of Ribeirão Preto of the University of São Paulo (FMRP-USP), Ribeirão Preto (SP), Brazil.,5 Department of Biophysics and Pharmacology, Federal University of Rio Grande do Norte (UFRN), Natal (RN), Brazil.,6 Instituto de Neurociências e Comportamento (INeC), Ribeirão Preto (SP), Brazil.,9 Ophidiarium LNN-FMRP-USP/INeC, Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Ribeirão Preto (SP), Brazil
| | - Renato Leonardo de Freitas
- 1 Laboratory of Neuroanatomy & Neuropsychobiology, Department of Pharmacology, School of Medicine of Ribeirão Preto of the University of São Paulo (FMRP-USP), Ribeirão Preto (SP), Brazil.,7 Laboratory of Neurobiology of Pain and Emotions and Multi-User Centre of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto (SP), Brazil.,10 Biomedical Sciences Institute, Federal University of Alfenas (UNIFAL-MG), Alfenas (MG), Brazil
| | - Tatiana Paschoalin-Maurin
- 1 Laboratory of Neuroanatomy & Neuropsychobiology, Department of Pharmacology, School of Medicine of Ribeirão Preto of the University of São Paulo (FMRP-USP), Ribeirão Preto (SP), Brazil.,6 Instituto de Neurociências e Comportamento (INeC), Ribeirão Preto (SP), Brazil.,9 Ophidiarium LNN-FMRP-USP/INeC, Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Ribeirão Preto (SP), Brazil
| | - Tayllon Dos Anjos-Garcia
- 1 Laboratory of Neuroanatomy & Neuropsychobiology, Department of Pharmacology, School of Medicine of Ribeirão Preto of the University of São Paulo (FMRP-USP), Ribeirão Preto (SP), Brazil.,9 Ophidiarium LNN-FMRP-USP/INeC, Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Ribeirão Preto (SP), Brazil
| | - Priscila Medeiros
- 1 Laboratory of Neuroanatomy & Neuropsychobiology, Department of Pharmacology, School of Medicine of Ribeirão Preto of the University of São Paulo (FMRP-USP), Ribeirão Preto (SP), Brazil.,9 Ophidiarium LNN-FMRP-USP/INeC, Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Ribeirão Preto (SP), Brazil
| | - Juliana Almeida da Silva
- 1 Laboratory of Neuroanatomy & Neuropsychobiology, Department of Pharmacology, School of Medicine of Ribeirão Preto of the University of São Paulo (FMRP-USP), Ribeirão Preto (SP), Brazil.,9 Ophidiarium LNN-FMRP-USP/INeC, Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Ribeirão Preto (SP), Brazil
| | - Thelma Anderson Lovick
- 2 School of Physiology, Pharmacology & Neuroscience, University of Bristol, Bristol, UK.,6 Instituto de Neurociências e Comportamento (INeC), Ribeirão Preto (SP), Brazil
| | - Norberto Cysne Coimbra
- 1 Laboratory of Neuroanatomy & Neuropsychobiology, Department of Pharmacology, School of Medicine of Ribeirão Preto of the University of São Paulo (FMRP-USP), Ribeirão Preto (SP), Brazil.,6 Instituto de Neurociências e Comportamento (INeC), Ribeirão Preto (SP), Brazil.,7 Laboratory of Neurobiology of Pain and Emotions and Multi-User Centre of Neuroelectrophysiology, Department of Surgery and Anatomy, Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto (SP), Brazil.,8 NAP-USP-Neurobiology of Emotions Research Centre (NuPNE), Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Ribeirão Preto (SP), Brazil.,9 Ophidiarium LNN-FMRP-USP/INeC, Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Ribeirão Preto (SP), Brazil
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Freitas RLD, Silva JAD. The challenge of measuring pain. Revista Dor 2018. [DOI: 10.5935/1806-0013.20180001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Paschoalin-Maurin T, dos Anjos-Garcia T, Falconi-Sobrinho LL, de Freitas RL, Coimbra JPC, Laure CJ, Coimbra NC. The Rodent-versus-wild Snake Paradigm as a Model for Studying Anxiety- and Panic-like Behaviors: Face, Construct and Predictive Validities. Neuroscience 2018; 369:336-349. [DOI: 10.1016/j.neuroscience.2017.11.031] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 11/09/2017] [Accepted: 11/17/2017] [Indexed: 12/22/2022]
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da Silva JA, Biagioni AF, Almada RC, de Freitas RL, Coimbra NC. Panicolytic-like effects caused by substantia nigra pars reticulata pretreatment with low doses of endomorphin-1 and high doses of CTOP or the NOP receptors antagonist JTC-801 in male Rattus norvegicus. Psychopharmacology (Berl) 2017; 234:3009-3025. [PMID: 28856406 DOI: 10.1007/s00213-017-4678-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 06/20/2017] [Indexed: 12/22/2022]
Abstract
RATIONALE Gamma-aminobutyric acid (GABA)ergic neurons of the substantia nigra pars reticulata (SNpr) are connected to the deep layers of the superior colliculus (dlSC). The dlSC, in turn, connect with the SNpr through opioid projections. Nociceptin/orphanin FQ peptide (N/OFQ) is a natural ligand of a Gi protein-coupled nociceptin receptor (ORL1; NOP) that is also found in the SNpr. Our hypothesis is that tectonigral opioid pathways and intranigral orphanin-mediated mechanisms modulate GABAergic nigrotectal connections. OBJECTIVES Therefore, the aim of this work was to study the role of opioid and NOP receptors in the SNpr during the modulation of defence reactions organised by the dlSC. METHODS The SNpr was pretreated with either opioid or NOP receptor agonists and antagonists, followed by dlSC treatment with bicuculline. RESULTS Blockade of GABAA receptors in the dlSC elicited fear-related defensive behaviour. Pretreatment of the SNpr with naloxone benzoylhydrazone (NalBzoH), a μ-, δ-, and κ1-opioid receptor antagonist as well as a NOP receptor antagonist, decreased the aversive effect of bicuculline treatment on the dlSC. Either μ-opioid receptor activation or blockade by SNpr microinjection of endomorphin-1 (EM-1) and CTOP promoted pro-aversive and anti-aversive actions, respectively, that modulated the defensive responses elicited by bicuculline injection into the dlSC. Pretreatment of the SNpr with the selective NOP receptor antagonist JTC801 decreased the aversive effect of bicuculline, and microinjections of the selective NOP receptor agonist NNC 63-0532 promoted the opposite effect. CONCLUSIONS These results demonstrate that opioid pathways and orphanin-mediated mechanisms have a critical role in modulating the activity of nigrotectal GABAergic pathways during the organisation of defensive behaviours.
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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, São Paulo, 14049-900, Brazil
- Behavioural Neurosciences Institute (INeC), Av. do Café, 2450, Monte Alegre, Ribeirão Preto, São Paulo, 14050-220, Brazil
| | - Audrey Franceschi 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, São Paulo, 14049-900, 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, São Paulo, 14049-900, Brazil
- Behavioural Neurosciences Institute (INeC), Av. do Café, 2450, Monte Alegre, Ribeirão Preto, São Paulo, 14050-220, Brazil
| | - Renato Leonardo de Freitas
- 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, São Paulo, 14049-900, Brazil
- Behavioural Neurosciences Institute (INeC), Av. do Café, 2450, Monte Alegre, Ribeirão Preto, São Paulo, 14050-220, Brazil
- Multiuser Centre of Neuroelectrophysiology, Department of Anatomy and Surgery, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil
- Laboratory of Pain and Emotions, Department of Anatomy and Surgery, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo, 14049-900, 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, São Paulo, 14049-900, Brazil.
- Behavioural Neurosciences Institute (INeC), Av. do Café, 2450, Monte Alegre, Ribeirão Preto, São Paulo, 14050-220, Brazil.
- NAP-USP-Neurobiology of Emotions Research Centre (NuPNE), Ribeirão Preto Medical School of the University of São Paulo, Av Bandeirantes, 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil.
- Multiuser Centre of Neuroelectrophysiology, Department of Anatomy and Surgery, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil.
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Ullah F, dos Anjos-Garcia T, Mendes-Gomes J, Elias-Filho DH, Falconi-Sobrinho LL, Freitas RLD, Khan AU, Oliveira RD, Coimbra NC. Connexions between the dorsomedial division of the ventromedial hypothalamus and the dorsal periaqueductal grey matter are critical in the elaboration of hypothalamically mediated panic-like behaviour. Behav Brain Res 2017; 319:135-147. [DOI: 10.1016/j.bbr.2016.11.026] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 11/08/2016] [Accepted: 11/13/2016] [Indexed: 01/20/2023]
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Menezes CNB, Silva JAD, Medeiros PD, Freitas RLD, Aparecido DSJ. Adaptation of a Brazilian Version of the North/Northeast Region for the Brief Pain Inventory. ACTA ACUST UNITED AC 2017. [DOI: 10.4236/pst.2017.53003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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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] [What about the content of this article? (0)] [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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de Freitas RL, Medeiros P, Khan AU, Coimbra NC. µ1-Opioid receptors in the dorsomedial and ventrolateral columns of the periaqueductal grey matter are critical for the enhancement of post-ictal antinociception. Synapse 2016; 70:519-530. [DOI: 10.1002/syn.21926] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 08/03/2016] [Accepted: 08/04/2016] [Indexed: 12/26/2022]
Affiliation(s)
- Renato Leonardo de Freitas
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology; Ribeirão Preto Medical School of the University of São Paulo (USP); Av. Bandeirantes, 3900 Ribeirão Preto São Paulo 14049-900 Brazil
- Department of Surgery and Anatomy, Multiuser Centre of Neurophysiology; Ribeirão Preto Medical School of the University of São Paulo (USP); Av. Bandeirantes, 3900 Ribeirão Preto São Paulo 14049-900 Brazil
- Laboratory of Pain and Emotions, Department of Surgery and Anatomy; Ribeirão Preto Medical School of the University of São Paulo (USP); Av. Bandeirantes, 3900 Ribeirão Preto São Paulo 14049-900 Brazil
- Behavioural Neurosciences Institute; Av. do Café, 2450 Ribeirão Preto São Paulo 14050-220 Brazil
| | - Priscila Medeiros
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology; Ribeirão Preto Medical School of the University of São Paulo (USP); Av. Bandeirantes, 3900 Ribeirão Preto São Paulo 14049-900 Brazil
- Laboratory of Pain and Emotions, Department of Surgery and Anatomy; Ribeirão Preto Medical School of the University of São Paulo (USP); Av. Bandeirantes, 3900 Ribeirão Preto São Paulo 14049-900 Brazil
| | - Asmat Ullah Khan
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology; Ribeirão Preto Medical School of the University of São Paulo (USP); Av. Bandeirantes, 3900 Ribeirão Preto São Paulo 14049-900 Brazil
- Department of Eastern Medicine and Surgery; School of Medical and Health Sciences of the University of Poonch Rawalakot, Azad Jammu and Kashmir; Pakistan
| | - Norberto Cysne Coimbra
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology; Ribeirão Preto Medical School of the University of São Paulo (USP); Av. Bandeirantes, 3900 Ribeirão Preto São Paulo 14049-900 Brazil
- Laboratory of Pain and Emotions, Department of Surgery and Anatomy; Ribeirão Preto Medical School of the University of São Paulo (USP); Av. Bandeirantes, 3900 Ribeirão Preto São Paulo 14049-900 Brazil
- Behavioural Neurosciences Institute; Av. do Café, 2450 Ribeirão Preto São Paulo 14050-220 Brazil
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Biagioni AF, Anjos-Garcia TD, Ullah F, Fisher IR, Falconi-Sobrinho LL, Freitas RLD, Felippotti TT, Coimbra NC. Neuroethological validation of an experimental apparatus to evaluate oriented and non-oriented escape behaviours: Comparison between the polygonal arena with a burrow and the circular enclosure of an open-field test. Behav Brain Res 2016; 298:65-77. [DOI: 10.1016/j.bbr.2015.10.059] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 10/27/2015] [Accepted: 10/31/2015] [Indexed: 12/26/2022]
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de Freitas RL, de Oliveira RC, de Oliveira R, Paschoalin-Maurin T, de Aguiar Corrêa FM, Coimbra NC. The role of dorsomedial and ventrolateral columns of the periaqueductal gray matter and in situ 5-HT₂A and 5-HT₂C serotonergic receptors in post-ictal antinociception. Synapse 2013; 68:16-30. [PMID: 23913301 DOI: 10.1002/syn.21697] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Revised: 06/08/2013] [Accepted: 06/25/2013] [Indexed: 12/22/2022]
Abstract
The periaqueductal gray matter (PAG) consists in a brainstem structure rich in 5-hydroxytryptamine (5-HT) inputs related to the modulation of pain. The involvement of each of the serotonergic receptor subtypes found in PAG columns, such as the dorsomedial (dmPAG) and the ventrolateral (vlPAG) columns, regarding post-ictal antinociception have not been elucidated. The present work investigated the participation of the dmPAG and vlPAG columns in seizure-induced antinociception. Specifically, we studied the involvement of serotonergic neurotransmission in these columns on antinociceptive responses that follow tonic-clonic epileptic reactions induced by pentylenetetrazole (PTZ), an ionophore GABA-mediated Cl(-) influx antagonist. Microinjections of cobalt chloride (1.0 mM CoCl2 /0.2 µL) into the dmPAG and vlPAG caused an intermittent local synaptic inhibition and decreased post-ictal antinociception that had been recorded at various time points after seizures. Pretreatments of the dmPAG or the vlPAG columns with the nonselective serotonergic receptors antagonist methysergide (5.0 µg/0.2 µL) or intramesencephalic microinjections of ketanserin (5.0 µg/0.2 µL), a serotonergic antagonist with more affinity to 5-HT2A/2C receptors, decreased tonic-clonic seizure-induced antinociception. Both dmPAG and vlPAG treatment with either the 5-HT2A receptor selective antagonist R-96544 (10 nM/0.2 µL), or the 5-HT2C receptors selective antagonist RS-102221 (0.15 µg/0.2 µL) also decrease post-ictal antinociception. These findings suggest that serotonergic neurotransmission, which recruits both 5-HT2A and 5-HT2C serotonergic receptors in dmPAG and vlPAG columns, plays a critical role in the elaboration of post-ictal antinociception.
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Affiliation(s)
- Renato Leonardo de Freitas
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, School of Medicine of Ribeirão Preto of the University of São Paulo (USP), Av. dos Bandeirantes, 3900, Ribeirão Preto (SP), 14049-900, Brazil; Institute for Neuroscience and Behavior (INeC), Av. do Café, S/N, Ribeirão Preto (SP), Brazil
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de Freitas RL, Bolognesi LI, Twardowschy A, Corrêa FMA, Sibson NR, Coimbra NC. Neuroanatomical and neuropharmacological approaches to postictal antinociception-related prosencephalic neurons: the role of muscarinic and nicotinic cholinergic receptors. Brain Behav 2013; 3:286-301. [PMID: 23785660 PMCID: PMC3683288 DOI: 10.1002/brb3.105] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Revised: 10/03/2012] [Accepted: 10/20/2012] [Indexed: 01/03/2023] Open
Abstract
Several studies have suggested the involvement of the hippocampus in the elaboration of epilepsy. There is evidence that suggests the hippocampus plays an important role in the affective and motivational components of nociceptive perception. However, the exact nature of this involvement remains unclear. Therefore, the aim of this study was to determine the role of muscarinic and nicotinic cholinergic receptors in the dorsal hippocampus (dH) in the organization of postictal analgesia. In a neuroanatomical study, afferent connections were found from the somatosensory cortex, the medial septal area, the lateral septal area, the diagonal band of Broca, and the dentate gyrus to the dH; all these areas have been suggested to modulate convulsive activity. Outputs to the dH were also identified from the linear raphe nucleus, the median raphe nucleus (MdRN), the dorsal raphe nucleus, and the locus coeruleus. All these structures comprise the endogenous pain modulatory system and may be involved either in postictal pronociception or antinociception that is commonly reported by epileptic patients. dH-pretreatment with cobalt chloride (1.0 mmol/L CoCl2/0.2 μL) to transiently inhibit local synapses decreased postictal analgesia 10 min after the end of seizures. Pretreatment of the dH with either atropine or mecamylamine (1.0 μg/0.2 μL) attenuated the postictal antinociception 30 min after seizures, while the higher dose (5.0 μg/0.2 μL) decreased postictal analgesia immediately after the end of seizures. These findings suggest that the dH exerts a critical role in the organization of postictal analgesia and that muscarinic and nicotinic cholinergic receptor-mediated mechanisms in the dH are involved in the elaboration of antinociceptive processes induced by generalized tonic-clonic seizures.
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Affiliation(s)
- Renato Leonardo de Freitas
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, School of Medicine of Ribeirão Preto, University of São Paulo (USP) Av. dos Bandeirantes 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil ; Institute for Neuroscience and Behaviour, Campus Universitarius of Ribeirão Preto of the University of São Paulo (USP) Av. dos Bandeirantes 3900, Ribeirão Preto, São Paulo, 14049-901, Brazil
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da Silva JA, de Freitas RL, Eichenberger GCD, Maria Padovan C, Cysne Coimbra N. Chemical neuroanatomical and psychopharmacological evidence that κ receptor-mediated endogenous opioid peptide neurotransmission in the dorsal and ventral mesencephalon modulates panic-like behaviour. Eur J Pharmacol 2013; 698:235-45. [DOI: 10.1016/j.ejphar.2012.07.038] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Biagioni AF, de Freitas RL, da Silva JA, de Oliveira RC, de Oliveira R, Alves VM, Coimbra NC. Serotonergic neural links from the dorsal raphe nucleus modulate defensive behaviours organised by the dorsomedial hypothalamus and the elaboration of fear-induced antinociception via locus coeruleus pathways. Neuropharmacology 2012. [PMID: 23201351 DOI: 10.1016/j.neuropharm.2012.10.024] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Decrease of γ-aminobutyric acid (GABA)-mediated neurotransmission in the dorsomedial hypothalamus (DMH) evokes instinctive fear-like responses. The aim of the present study was to investigate the involvement of the serotonin (5-HT)- and norepinephrine-mediated pathways of the endogenous pain inhibitory system, including the dorsal raphe nucleus (DRN) and the locus coeruleus (LC), in the defensive responses and antinociceptive processes triggered by the blockade of GABAergic receptors in the DMH. The intra-hypothalamic microinjection of the GABA(A) receptor antagonist bicuculline (40 ng/200 nL) elicited elaborate defensive behaviours interspersed with exploratory responses. This escape behaviour was followed by significantly increased pain thresholds, a phenomenon known as fear-induced antinociception. Furthermore, at 5 and 14 days after DRN serotonin-containing neurons were damaged using the selective neurotoxin 5,7-dihydroxytryptamine (5,7-DHT), the frequency and duration of alertness and escape behaviour evoked by the GABA(A) receptor blockade in the DMH decreased, as well as fear-induced antinociception. Pre-treatment with the non-selective 5-HT receptor antagonist methysergide, the 5-HT(2A/2C) receptor antagonist ketanserin and the 5-HT(2A) receptor selective antagonist R-96544 in the LC also decreased fear-induced antinociception, without significant changes in the expression of defensive behaviours. These data suggest that the serotonergic neurons of the DRN are directly involved in the organisation of defensive responses as well as in the elaboration of the innate fear-induced antinociception. However, serotonin-mediated inputs from the NDR to the LC modulate only fear-induced antinociception and not the defensive behaviours evoked by GABA(A) receptor blockade in the DMH.
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Affiliation(s)
- Audrey Francisco Biagioni
- Laboratório de Neuroanatomia & Neuropsicobiologia, Departamento de Farmacologia, Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo (FMRP-USP), Av. dos Bandeirantes 3900, Ribeirão Preto, SP 14049-900, Brazil
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de Freitas RL, Kübler JML, Elias-Filho DH, Coimbra NC. Antinociception induced by acute oral administration of sweet substance in young and adult rodents: The role of endogenous opioid peptides chemical mediators and μ1-opioid receptors. Pharmacol Biochem Behav 2012; 101:265-70. [DOI: 10.1016/j.pbb.2011.12.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2011] [Revised: 11/23/2011] [Accepted: 12/10/2011] [Indexed: 01/05/2023]
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Felippotti TT, de Freitas RL, Coimbra NC. Endogenous opioid peptide-mediated neurotransmission in central and pericentral nuclei of the inferior colliculus recruits μ1-opioid receptor to modulate post-ictal antinociception. Neuropeptides 2012; 46:39-47. [PMID: 22104092 DOI: 10.1016/j.npep.2011.10.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2011] [Revised: 10/17/2011] [Accepted: 10/18/2011] [Indexed: 12/22/2022]
Abstract
BACKGROUND The aim of the present work was to investigate the involvement of the μ1-endogenous opioid peptide receptor-mediated system in post-ictal antinociception. METHODS Antinociceptive responses were determined by the tail-flick test after pre-treatment with the selective μ1-opioid receptor antagonist naloxonazine, peripherally or centrally administered at different doses. RESULTS Peripheral subchronic (24 h) pre-treatment with naloxonazine antagonised the antinociception elicited by tonic-clonic seizures. Acute (10 min) pre-treatment, however, did not have the same effect. In addition, microinjections of naloxonazine into the central, dorsal cortical and external cortical nuclei of the inferior colliculus antagonised tonic-clonic seizure-induced antinociception. Neither acute (10-min) peripheral pre-treatment with naloxonazine nor subchronic intramesencephalic blockade of μ1-opioid receptors resulted in consistent statistically significant differences in the severity of tonic-clonic seizures shown by Racine's index (1972), although the intracollicular specific antagonism of μ1-opioid receptor decreased the duration of seizures. CONCLUSION μ1-Opioid receptors and the inferior colliculus have been implicated in several endogenous opioid peptide-mediated responses such as antinociception and convulsion. The present findings suggest the involvement of μ1-opiate receptors of central and pericentral nuclei of the inferior colliculus in the modulation of tonic-clonic seizures and in the organisation of post-ictal antinociception.
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Affiliation(s)
- Tatiana Tocchini Felippotti
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, School of Medicine of Ribeirão Preto of the University of São Paulo (FMRP-USP), Av. dos Bandeirantes, 3900, Ribeirão Preto, SP 14049-900, Brazil
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Felippotti TT, dos Reis Ferreira CM, de Freitas RL, de Oliveira RC, de Oliveira R, Paschoalin-Maurin T, Coimbra NC. Paradoxical effect of noradrenaline-mediated neurotransmission in the antinociceptive phenomenon that accompanies tonic-clonic seizures: role of locus coeruleus neurons and α(2)- and β-noradrenergic receptors. Epilepsy Behav 2011; 22:165-77. [PMID: 21813330 DOI: 10.1016/j.yebeh.2011.06.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Revised: 06/17/2011] [Accepted: 06/20/2011] [Indexed: 01/10/2023]
Abstract
The postictal state is generally followed by antinociception. It is known that connections between the dorsal raphe nucleus, the periaqueductal gray matter, and the locus coeruleus, an important noradrenergic brainstem nucleus, are involved in the descending control of ascending nociceptive pathways. The aim of the present study was to determine whether noradrenergic mechanisms in the locus coeruleus are involved in postictal antinociception. Yohimbine (an α(2)-receptor antagonist) or propranolol (a β-receptor antagonist) was microinjected unilaterally into the locus coeruleus, followed by intraperitoneal administration of pentylenetetrazole (PTZ), a noncompetitive antagonist that blocks GABA-mediated Cl(-) influx. Although the administration of both yohimbine and propranolol to the locus coeruleus/subcoeruleus area resulted in a significant decrease in tonic or tonic-clonic seizure-induced antinociception, the effect of yohimbine restricted to the locus coeruleus was more distinct compared with that of propranolol, possibly because of the presynaptic localization of α(2)-noradrenergic receptors in locus coeruleus neurons. These effects were related to the modulation of noradrenergic activity in the locus coeruleus. Interestingly, microinjections of noradrenaline into the locus coeruleus also decrease the postictal antinociception. The present results suggest that the mechanism underlying postictal antinociception involves both α(2)- and β-noradrenergic receptors in the locus coeruleus, although the action of noradrenaline on these receptors causes a paradoxical effect, depending on the nature of the local neurotransmission.
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Affiliation(s)
- Tatiana Tocchini Felippotti
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, University of São Paulo at Ribeirão Preto Medical School, Ribeirão Preto (SP), Brazil
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Miyase CI, Kishi R, de Freitas RL, Paz DA, Coimbra NC. Involvement of pre- and post-synaptic serotonergic receptors of dorsal raphe nucleus neural network in the control of the sweet-substance-induced analgesia in adult Rattus norvegicus (Rodentia, Muridae). Neurosci Lett 2005; 379:169-73. [PMID: 15843057 DOI: 10.1016/j.neulet.2004.12.058] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2004] [Revised: 12/19/2004] [Accepted: 12/23/2004] [Indexed: 11/27/2022]
Abstract
In order to investigate the effects of monoaminergic mechanisms of the dorsal raphe nucleus on the elaboration and control of sweet-substance-induced antinociception, male albino Wistar rats weighing 180-200 g received sucrose solution (250 g/L) for 14 days as their only source of liquid. After the chronic consumption of sucrose solution, each animal was pretreated with unilateral microinjection of methiothepin mesylate (5.0 microg/0.2 microL), or methysergide maleate (5.0 microg/0.2 microL) in the dorsal raphe nucleus. Each rat consumed an average of 15.6g sucrose/day. Their tail withdrawal latencies in the tail-flick test were measured immediately before and after this treatment. An analgesia index was calculated from the withdrawal latencies before and after the pharmacological treatment. The blockade of serotonergic receptor in the dorsal raphe nucleus with methysergide after the chronic intake of sucrose decreased the sweet-induced antinociception. However, microinjections of methiothepin in the dorsal raphe nucleus did not cause a similar effect on the tail-flick latencies after the chronic intake of sucrose solution, increasing the sweet-substance-induced analgesia. These results indicate the involvement of serotonin as a neurotransmitter in the sucrose-produced antinociception. Considering that the blockade of pre-synaptic serotonergic receptors of the neural networks of the dorsal raphe nucleus with methiothepin did not decrease the sweet-substance-induced antinociception, and the central blockade of post-synaptic serotonergic receptors decreased the sucrose-induced analgesia, the modulation of the release of serotonin in the neural substrate of the dorsal raphe nucleus seems to be crucial for the organization of this interesting antinociceptive process.
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Affiliation(s)
- Cátia Isumi Miyase
- Laboratório de Neuroanatomia e Neuropsicobiologia, Departamento de Farmacologia, Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo (FMRP-USP), Avenida dos Bandeirantes 3900, Ribeirão Preto (SP) 14049-900, Brazil
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de Freitas RL, de Oliveira RC, de Carvalho AD, Felippotti TT, Bassi GS, Elias-Filho DH, Coimbra NC. Role of muscarinic and nicotinic cholinergic receptors in an experimental model of epilepsy-induced analgesia. Pharmacol Biochem Behav 2004; 79:367-76. [PMID: 15501314 DOI: 10.1016/j.pbb.2004.08.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2004] [Revised: 08/15/2004] [Accepted: 08/16/2004] [Indexed: 01/11/2023]
Abstract
The blockade of GABA-mediated Cl(-) influx with pentylenetetrazol (PTZ) was used in the present work to induce seizures in animals. The neurotransmission in the postictal period has been the focus of many studies, and there is evidence suggesting antinociceptive mechanisms following tonic-clonic seizures in both animals and men. The aim of this work was to study the involvement of acetylcholine in the antinociception induced by convulsions elicited by peripheral administration of PTZ (64 mg/kg). Analgesia was measured by the tail-flick test in eight albino Wistar rats per group. Convulsions were followed by significant increases in tail-flick latencies (TFLs) at least for 120 min of the postictal period. Peripheral administration of atropine (0.25, 1 and 4 mg/kg) caused a significant dose-dependent decrease in the TFL in seizing animals, as compared to controls. These data were corroborated by peripheral administration of mecamylamine, a nicotinic cholinergic receptor blocker, at the same doses (0.25, 1 and 4 mg/kg) used for the muscarinic cholinergic receptor antagonist. The recruitment of the muscarinic receptor was made 10 min postconvulsions and in subsequent periods of postictal analgesia, whereas the involvement of the nicotinic cholinergic receptor was implicated only after 30 min postseizures. The cholinergic antagonists caused a minimal reduction in body temperature, but did not impair baseline TFL, spontaneous exploration or motor coordination in the rotarod test at the maximal dose of 4 mg/kg. These results indicate that acetylcholine may be involved as a neurotransmitter in postictal analgesia.
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Affiliation(s)
- Renato Leonardo de Freitas
- Laboratório de Neuroanatomia e Neuropsicobiologia, Departamento de Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), 14049-900, Avenida dos Bandeirantes, 3900, Ribeirão Preto (SP), Brazil
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