1
|
Falconi-Sobrinho LL, Anjos-Garcia TD, Rebelo MA, Hernandes PM, Almada RC, Tanus-Santos JE, Coimbra NC. The anterior cingulate cortex and its interface with the dorsal periaqueductal grey regulating nitric oxide-mediated panic-like behaviour and defensive antinociception. Neuropharmacology 2024; 245:109831. [PMID: 38160873 DOI: 10.1016/j.neuropharm.2023.109831] [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: 06/23/2023] [Revised: 12/22/2023] [Accepted: 12/23/2023] [Indexed: 01/03/2024]
Abstract
The anterior cingulate cortex (ACC) Cg1 (24b) area modulates glutamate-mediated unconditioned fear and antinociception organised by hypothalamus. However, it remains unknown whether 24b area also modulates these latter defensive responses through connections with the dorsal periaqueductal grey matter (dPAG), a midbrain structure implicated in the genesis of innate fear-induced defence. The aim of this work is to examine the correlation between the behavioural effects of intra-ACC microinjections of vehicle, NMDA (1 nmol) or lidocaine (2%) with Fos protein expression and nitrergic activity in the dPAG of male C57BL/6 mice that were threatened by snakes. In addition, the 24b area-dPAG pathways were also characterised by neural tract tracing procedures. Finally, the effect of dPAG pretreatment with the neuronal nitric oxide synthase inhibitor N(omega)-propyl-l-arginine (NPLA; 0.2, 0.4 or 0.8 nmol) 10 min before 24b area treatment with NMDA on behavioural and nociceptive responses of threatened mice was studied. The activation of 24b area N-methyl-d-aspartic acid receptors facilitated escape and freezing rather than risk assessment, and enhanced Fos expression and nitrite levels in dPAG, while lidocaine decreased escape and risk assessment as well as Fos and nitrergic activity in dPAG. In addition, dPAG pretreatment with NPLA suppressed intra-24b NMDA-facilitated panicogenic effects while increased nociception. Infusions of an antegrade neurotracer into 24b area showed axonal fibres surrounding both dorsomedial and dorsolateral PAG perikarya. Neurons were identified in 24b area after deposits of a retrograde neurotracer into dPAG. Our findings suggest that the ACC/24b area modulates innate defensive responses through the recruitment of dPAG nitrergic neurons.
Collapse
Affiliation(s)
- Luiz Luciano Falconi-Sobrinho
- 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; Behavioural Neurosciences Institute (INeC), Psychobiology Division, Av. Bandeirantes, 3900, Ribeirão Preto, 14049-900, São Paulo, Brazil.
| | - Tayllon Dos Anjos-Garcia
- 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; Biomedical Sciences Institute of the Federal University of Alfenas (UNIFAL), Alfenas, Minas Gerais, Brazil
| | - Macário Arosti Rebelo
- Laboratory of Cardiovascular Pharmacology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (USP), Av. Bandeirantes 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Paloma Molina Hernandes
- Laboratory of Neurobiology and Neurobiotechnology, Department of Biological Sciences, School of Science, Humanities and Languages, São Paulo State University (UNESP), Assis, São Paulo, Brazil
| | - Rafael Carvalho Almada
- Behavioural Neurosciences Institute (INeC), Psychobiology Division, Av. Bandeirantes, 3900, Ribeirão Preto, 14049-900, São Paulo, Brazil; Laboratory of Neurobiology and Neurobiotechnology, Department of Biological Sciences, School of Science, Humanities and Languages, São Paulo State University (UNESP), Assis, São Paulo, Brazil
| | - Jose Eduardo Tanus-Santos
- Laboratory of Cardiovascular Pharmacology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (USP), Av. Bandeirantes 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - 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; Behavioural Neurosciences Institute (INeC), Psychobiology Division, Av. Bandeirantes, 3900, Ribeirão Preto, 14049-900, São Paulo, Brazil.
| |
Collapse
|
2
|
Uribe-Mariño A, Falconi-Sobrinho LL, Castiblanco-Urbina MA, Pigatto GR, Ullah F, da Silva JA, Coimbra NC. Alpha 1- and Beta-norepinephrinergic receptors of dorsomedial and ventromedial hypothalamic nuclei modulate panic attack-like defensive behaviour elicited by diencephalic GABAergic neurotransmission disinhibition. Pharmacol Biochem Behav 2024; 236:173710. [PMID: 38262489 DOI: 10.1016/j.pbb.2024.173710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 01/25/2024]
Abstract
Gamma-aminobutyric acid (GABA) disinhibition in medial hypothalamus (MH) nuclei of rats elicits some defensive reactions that are considered panic attack-like behaviours. Recent evidence showed that the norepinephrine-mediated system modulates fear-related defensive behaviours organised by MH neurons at least in part via noradrenergic receptors recruitment on midbrain tegmentum. However, it is unknown whether noradrenergic receptors of the MH also modulate the panic attack-like reactions. The aim of this work was to investigate the distribution of noradrenergic receptors in MH, and the effects of either α1-, α2- or β-noradrenergic receptors blockade in the MH on defensive behaviours elaborated by hypothalamic nuclei. Defensive behaviours were evaluated after the microinjection of the selective GABAA receptor antagonist bicuculline into the MH that was preceded by microinjection of either WB4101, RX821002, propranolol (α1-, α2- and β-noradrenergic receptor selective antagonists, respectively), or physiological saline into the MH of male Wistar rats. The α1-, α2- and β-noradrenergic receptors were found in neuronal perikarya of all MH nuclei, and the α2-noradrenergic receptor were also found on glial cells mainly situated in the ventrolateral division of the ventromedial hypothalamic nucleus. The α1- and β-noradrenergic receptors blockade in the MH decreased defensive attention and escape reactions elicited by the intra-MH microinjections of bicuculline. These findings suggest that, despite the profuse distributions of α1-, α2- and β-noradrenergic receptors in the MH, both α1- and β-noradrenergic receptor- rather than α2-noradrenergic receptor-signalling in MH are critical for the neuromodulation of panic-like behaviour.
Collapse
Affiliation(s)
- Andrés Uribe-Mariño
- 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 14049-900, São Paulo, Brazil
| | - Luiz Luciano Falconi-Sobrinho
- 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 14049-900, São Paulo, Brazil; NAP-USP-Neurobiology of Emotions Research Centre (NuPNE), Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto 14049-900, São Paulo, Brazil; Behavioural Neurosciences Institute (INeC), Avenida do Café, 2450, Ribeirão Preto 14220-030, São Paulo, Brazil
| | - Maria Angélica Castiblanco-Urbina
- 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 14049-900, São Paulo, Brazil
| | - Glauce Regina Pigatto
- 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 14049-900, São Paulo, Brazil; Behavioural Neurosciences Institute (INeC), Avenida do Café, 2450, Ribeirão Preto 14220-030, São Paulo, Brazil
| | - Farhad Ullah
- 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 14049-900, São Paulo, Brazil; Department of Animal Sciences, Quaid-i-Azam University, 45320 Islamabad, Pakistan; Department of Eastern Medicine and Surgery, School of Medical and Health Sciences of the University of Poonch Rawalakot, Azad Jammu and Kashmir, Pakistan
| | - Juliana Almeida da Silva
- 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 14049-900, São Paulo, Brazil; NAP-USP-Neurobiology of Emotions Research Centre (NuPNE), Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto 14049-900, São Paulo, Brazil; Behavioural Neurosciences Institute (INeC), Avenida do Café, 2450, Ribeirão Preto 14220-030, São Paulo, 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, Ribeirão Preto 14049-900, São Paulo, Brazil; NAP-USP-Neurobiology of Emotions Research Centre (NuPNE), Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto 14049-900, São Paulo, Brazil; Behavioural Neurosciences Institute (INeC), Avenida do Café, 2450, Ribeirão Preto 14220-030, São Paulo, Brazil..
| |
Collapse
|
3
|
de Paula Rodrigues BM, Falconi-Sobrinho LL, de Campos AC, Kanashiro A, Coimbra NC. Panicolytic-like effects of environment enrichment on male mice threatened by Bothrops jararaca lancehead pit vipers. J Neurosci Res 2024; 102:e25300. [PMID: 38361409 DOI: 10.1002/jnr.25300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 12/01/2023] [Accepted: 01/16/2024] [Indexed: 02/17/2024]
Abstract
Environment enrichment (EE) is a well-known eustress model showing beneficial effects in different psychiatric diseases, but its positive properties in panic disorders are not yet established. The confrontation between prey and predator in complex arenas has been validated as a putative panic attack model. The principal aim of this work was to investigate the role of the EE on panic-like defensive responses elicited by mice threatened by venomous snakes. After 6 weeks of exposure either to an enriched or standard environments, 36 male mice were habituated in a complex polygonal arena for snakes containing an artificial burrow and elevated platforms for escape. The animals were confronted by Bothrops jararaca for 5 min, and the following antipredatory responses were recorded: defensive attention, stretched attend posture, flat back approach, prey versus predator interaction, oriented escape behavior, time spent in a safe place, and number of crossings. Mice threatened by snakes displayed several antipredatory reactions as compared to the exploratory behavior of those animals submitted to a nonthreatening situation (toy snake) in the same environment. Notably, EE causes anxiolytic- and panicolytic-like effects significantly decreasing the defensive attention and time spent in safe places and significantly increasing both prey versus predator interaction and exploratory behavior. In conclusion, our data demonstrate that EE can alter the processing of fear modulation regarding both anxiety- and panic-like responses in a dangerous condition, significantly modifying the decision-making defensive strategy.
Collapse
Affiliation(s)
- Bruno Mangili de Paula Rodrigues
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil
- NAP-USP-Neurobiology of Emotions (NuPNE) Research Center, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil
- Ophidiarium LNN-FMRP-USP/INeC, Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil
| | - Luiz Luciano Falconi-Sobrinho
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil
- NAP-USP-Neurobiology of Emotions (NuPNE) Research Center, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil
- Ophidiarium LNN-FMRP-USP/INeC, Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil
- Behavioural Neurosciences Institute (INeC), Ribeirão Preto, Brazil
| | - Alline Cristina de Campos
- Pharmacology of Neuroplasticity Laboratory, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, Brazil
| | - Alexandre Kanashiro
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil
- Ophidiarium LNN-FMRP-USP/INeC, Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil
- Behavioural Neurosciences Institute (INeC), Ribeirão Preto, Brazil
- Medical Sciences Center, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Norberto Cysne Coimbra
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil
- NAP-USP-Neurobiology of Emotions (NuPNE) Research Center, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil
- Ophidiarium LNN-FMRP-USP/INeC, Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil
- Behavioural Neurosciences Institute (INeC), Ribeirão Preto, Brazil
| |
Collapse
|
4
|
Falconi-Sobrinho LL, Dos Anjos-Garcia T, Hernandes PM, Rodrigues BMDP, Almada RC, Coimbra NC. Unravelling the dorsal periaqueductal grey matter NMDA receptors relevance in the nitric oxide-mediated panic‑like behaviour and defensive antinociception organised by the anterior hypothalamus of male mice. Psychopharmacology (Berl) 2023; 240:319-335. [PMID: 36648509 DOI: 10.1007/s00213-023-06309-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 12/31/2022] [Indexed: 01/18/2023]
Abstract
RATIONALE Previous studies suggested that the dorsal column of the periaqueductal grey matter (dPAG) can be a target of neural pathways from hypothalamic nuclei involved in triggering fear-related defensive responses. In turn, evidence is provided suggesting that microinjection of the nitric oxide (NO) donor SIN-1 into the anterior hypothalamus (AH) of mice evokes panic-like behaviours and fear-induced antinociception. However, it is unknown whether the dPAG of mice mediates these latter defensive responses organised by AH neurons. OBJECTIVES This study was designed to examine the role of dPAG in mediating SIN-1-evoked fear-induced defensive behavioural and antinociceptive responses organised in the AH of mice. METHODS First, neural tract tracing was performed to characterise the AH-dPAG pathways. Then, using neuropharmacological approaches, we evaluated the effects of dPAG pretreatment with either the non-selective synaptic blocker cobalt chloride (CoCl2; 1 mM/0.1 μL) or the competitive N-methyl-D-aspartate (NMDA) receptor antagonist LY235959 (0.1 nmol/0.1 μL) on defensive behaviours and antinociception induced by microinjections of SIN-1 in the AH of male C57BL/6 mice. RESULTS AlexaFluor488-conjugated dextran-labelled axonal fibres from AH neurons were identified in both dorsomedial and dorsolateral PAG columns. Furthermore, we showed that pre-treatment of the dPAG with either CoCl2 or LY235959 inhibited freezing and impaired oriented escape and antinociception induced by infusions of SIN-1 into the AH. CONCLUSIONS These findings suggest that the panic-like freezing and oriented escape defensive behaviours, and fear-induced antinociception elicited by intra-AH microinjections of SIN-1 depend on the activation of dPAG NMDA receptors.
Collapse
Affiliation(s)
- Luiz Luciano Falconi-Sobrinho
- 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.
- NAP-USP-Neurobiology of Emotions (NuPNE) Research Centre, Ribeirão Preto Medical School of the University of São Paulo (USP), Av. Bandeirantes 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil.
- Behavioural Neurosciences Institute (INeC), Avenida do Café, 2450, Ribeirão Preto, São Paulo, 14220-030, Brazil.
| | - Tayllon Dos Anjos-Garcia
- 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
- Biomedical Sciences Institute of the Federal University of Alfenas (UNIFAL), Alfenas, Minas Gerais, Brazil
| | - Paloma Molina Hernandes
- Department of Biological Sciences, School of Science, Humanities and Languages, São Paulo State University (UNESP), Assis, São Paulo, Brazil
| | - Bruno Mangili de Paula Rodrigues
- 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
| | - Rafael Carvalho Almada
- Behavioural Neurosciences Institute (INeC), Avenida do Café, 2450, Ribeirão Preto, São Paulo, 14220-030, Brazil
- Department of Biological Sciences, School of Science, Humanities and Languages, São Paulo State University (UNESP), Assis, São Paulo, Brazil
| | - 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.
- NAP-USP-Neurobiology of Emotions (NuPNE) Research Centre, Ribeirão Preto Medical School of the University of São Paulo (USP), Av. Bandeirantes 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil.
- Behavioural Neurosciences Institute (INeC), Avenida do Café, 2450, Ribeirão Preto, São Paulo, 14220-030, Brazil.
| |
Collapse
|
5
|
Blanchard DC. Are cognitive aspects of defense a core feature of anxiety and depression? Neurosci Biobehav Rev 2023; 144:104947. [PMID: 36343691 DOI: 10.1016/j.neubiorev.2022.104947] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 10/17/2022] [Accepted: 11/03/2022] [Indexed: 11/06/2022]
Abstract
Anxiety and depression are highly prevalent behavior disorders, particularly in women. Recent preclinical work using animal models has been suboptimal in predicting the efficacy of drugs targeted at these conditions, suggesting a potential discrepancy between such models and the human disorders. Notably female animals tend to be equal to, or less responsive than, males in these tasks. A number of analyses suggest that mammalian defense patterns are complex: In addition to relatively discrete and immediate fight, flight, and freezing responses, a risk assessment pattern may occur in response to threat stimuli or situations with ambiguous elements. This pattern combines defensiveness with a number of cognition-linked behaviors such as sensory attention and orientation, approach, contact, and investigation of the potential threat. Studies measuring elements of this pattern suggest that female rats, and perhaps female mice, show higher levels than equivalent males. Higher female involvement may also occur in tasks involving learning/generalization/extinction of defensiveness to conditioned stimuli. Such findings are consonant with recent analyses of "female survival strategies" based on differential adaptiveness of cognitive components of defensiveness in females, due to the necessity of female care of offspring until they are independent. These data suggest the value of additional behavioral and functional analyses of cognitive aspects of defensive behavior; contributing to both an understanding of their underlying mechanisms, and providing more sensitive measures of drug responsivity for use with animal models.
Collapse
Affiliation(s)
- D Caroline Blanchard
- Pacific Biosciences Research Center, University of Hawaii, Manoa, Honolulu, HI, USA; Institute of Biomedical Sciences at the University of São Paulo, Sao Paulo, Brazil.
| |
Collapse
|
6
|
de Paula Rodrigues BM, Coimbra NC. CB 1 receptor signalling mediates cannabidiol-induced panicolytic-like effects and defensive antinociception impairment in mice threatened by Bothrops jararaca lancehead pit vipers. J Psychopharmacol 2022; 36:1384-1396. [PMID: 35946605 DOI: 10.1177/02698811221115755] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
BACKGROUND Cannabis sativa-derived substances such as cannabidiol (CBD) have attracted increasing clinical interest and consist in a new perspective for treating some neurological and psychiatric diseases. AIMS The aim of this work was to investigate the effect of acute treatment with CBD on panic-like defensive responses displayed by mice threatened by the venomous snake Bothrops jararaca. METHODS Mice were habituated in the enriched polygonal arena for snake panic test. After recording the baseline responses of the tail-flick test, the prey were pretreated with intraperitoneal (i.p.) administrations of the endocannabinoid type 1 receptor (CB1) antagonist AM251 (selective cannabinoid 1 receptor antagonist with an IC50 of 8 nM) at different doses, which were followed after 10 min by i.p. treatment with CBD (3 mg/kg). Thirty minutes after treatment with CBD, mice were subjected to confrontations by B. jararaca for 5 min, and the following defensive responses were recorded: risk assessment, oriented escape behaviour, inhibitory avoidance and prey-versus-snake interactions. Immediately after the escape behaviour was exhibited, the tail-flick latencies were recorded every 5 min for 30 min. OUTCOMES Mice threatened by snakes displayed several anti-predatory defensive and innate fear-induced antinociception responses in comparison to the control. CBD significantly decreased the risk assessment and escape responses, with a consequent decrease in defensive antinociception. The CBD panicolytic effect was reversed by i.p. treatment with AM251. CONCLUSIONS These findings suggest that the anti-aversive effect of CBD depends at least in part on the recruitment of CB1 receptors.
Collapse
Affiliation(s)
- Bruno Mangili de Paula Rodrigues
- 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
- NAP-USP-Neurobiology of Emotions Research Centre (NuPNE), Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil
- Ophidiarium LNN-FMRP-USP/INeC, Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil
| | - Norberto Cysne Coimbra
- 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
- NAP-USP-Neurobiology of Emotions Research Centre (NuPNE), Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil
- Ophidiarium LNN-FMRP-USP/INeC, Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil
- Behavioural Neurosciences Institute (INeC), Ribeirão Preto, São Paulo, Brazil
| |
Collapse
|
7
|
de Figueiredo RM, Falconi-Sobrinho LL, Leite-Panissi CRA, Huston JP, Mattern C, de Carvalho MC, Coimbra NC. D 2-like receptor activation by intranasal dopamine attenuates fear responses induced by electrical stimulation of the dorsal periaqueductal grey matter, but fails to reduce aversion to pit vipers and T-maze performance. J Psychopharmacol 2022; 36:1257-1272. [PMID: 36239034 DOI: 10.1177/02698811221128018] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Panic-like reactions elicited by electrical stimulation of the dorsal periaqueductal grey matter (ES-dPAG) seem to be regulated by dopamine (DA). We showed that DA applied intranasally (IN) increased escape-behaviour thresholds induced by ES-dPAG of rats, indicating a panicolytic-like effect. AIMS We investigated whether IN-DA increases escape-response thresholds induced by ES-dPAG by acting on D2-like receptors, and whether IN-DA affects escape responses elicited by the presence of a potential predator and by open space and height of the elevated T-maze (ETM) as well as motor performance in the open field (OF) test. METHODS Wistar rats exposed to ES-dPAG were treated with Sulpiride (SUL, 40 mg/kg, D2-like receptor antagonist) previously IN-DA (2 mg/kg). Independent groups of rats treated with IN-DA were submitted to prey versus snake paradigm (PSP), ETM and OF. RESULTS Anti-aversive effects of the IN-DA were reduced by SUL pretreatment in the ES-dPAG test. IN-DA did not affect the escape number in the PSP nor the escape latencies in the ETM as well as motor performance in the OF. CONCLUSIONS/INTERPRETATION The IN-DA effects in reducing unconditioned fear responses elicited by ES-dPAG seem to be mediated by D2-like receptors. The lack of effects on panic-related responses in the ETM and PSP may be related to the possibility of avoiding the danger inherent to these models, a defence strategy not available during ES-dPAG. These findings cannot be attributed to motor performance. The decision-making responses to avoid dangerous situations can be orchestrated by supra-mesencephalic structures connected by non-dopaminergic inputs.
Collapse
Affiliation(s)
- Rebeca Machado de Figueiredo
- Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil.,Institute for Neuroscience and Behaviour (INeC), Ribeirão Preto, Brazil
| | - Luiz Luciano Falconi-Sobrinho
- Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil.,NAP-USP-Neurobiology of Emotions Research Centre (NuPNE), Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil.,Institute for Neuroscience and Behaviour (INeC), Ribeirão Preto, Brazil
| | - Christie Ramos Andrade Leite-Panissi
- Department of Psychology, Ribeirão Preto School of Philosophy, Science and Literature of the University of São Paulo, Ribeirão Preto, Brazil.,NAP-USP-Neurobiology of Emotions Research Centre (NuPNE), Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil.,Institute for Neuroscience and Behaviour (INeC), Ribeirão Preto, Brazil
| | - Joseph P Huston
- Centre for Behavioural Neuroscience, Institute of Experimental Psychology, Heinrich-Heine University of Düsseldorf, Germany
| | - Claudia Mattern
- MetP Pharma AG, Emmetten, Switzerland, and Oceanographic Centre, Nova Southeastern University, Fl, USA
| | - Milene Cristina de Carvalho
- Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil.,Institute for Neuroscience and Behaviour (INeC), Ribeirão Preto, Brazil
| | - Norberto Cysne Coimbra
- Department of Pharmacology, Ribeirão Preto Medical School of the University of São Paulo, Ribeirão Preto, São Paulo, Brazil.,NAP-USP-Neurobiology of Emotions Research Centre (NuPNE), Ribeirão Preto School of Medicine of the University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil.,Institute for Neuroscience and Behaviour (INeC), Ribeirão Preto, Brazil
| |
Collapse
|
8
|
Melo-Thomas L, Tacken L, Richter N, Almeida D, Rapôso C, de Melo SR, Thomas U, de Paiva YB, Medeiros P, Coimbra NC, Schwarting R. Lateralization in hemi-parkinsonian rats is affected by deep brain stimulation or glutamatergic neurotransmission in the inferior colliculus. eNeuro 2022; 9:ENEURO.0076-22.2022. [PMID: 35817565 PMCID: PMC9337613 DOI: 10.1523/eneuro.0076-22.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/16/2022] [Accepted: 06/12/2022] [Indexed: 11/21/2022] Open
Abstract
After unilateral lesion of the medial forebrain bundle (MFB) by 6-OHDA rats exhibit lateralized deficits in spontaneous behavior or apomorphine-induced rotations. We investigated whether such lateralization is attenuated by either deep brain stimulation (DBS) or glutamatergic neurotransmission in the inferior colliculus (IC) of Wistar rats. Intracollicular DBS did not affect spontaneous lateralization but attenuated apomorphine-induced rotations. Spontaneous lateralization disappeared after both glutamatergic antagonist MK-801 or the agonist NMDA microinjected in the IC. Apomorphine-induced rotations were potentiated by MK-801 but were not affected by NMDA intracollicular microinjection. After injecting a bidirectional neural tract tracer into the IC, cell bodies and/or axonal fibers were found in the periaqueductal gray, superior colliculus, substantia nigra, cuneiform nucleus and pedunculo-pontine tegmental nucleus, suggesting the involvement of these structures in the motor improvement after IC manipulation. Importantly, the side of the IC microinjection regarding the lesion (ipsi- or contralateral) is particularly important and this effect may not involve the neostriatum directly.Significance StatementThe inferior colliculus, usually viewed as an auditory structure, when properly manipulated may counteract motor deficits in Parkinsonian rats. Indeed, the present study showed that 30 Hz deep brain stimulation or glutamatergic neural network in the inferior colliculus reduced body asymmetry induced by medial forebrain bundle unilateral 6-OHDA lesion in rats, an animal model of Parkinsonism. Understanding how glutamatergic mechanisms in the inferior colliculus influence motor control, classically attributed to the basal nuclei circuitry, could be useful in the development of new therapeutics to treat Parkinson's disease and other motor disorders.
Collapse
Affiliation(s)
- Liana Melo-Thomas
- Behavioral Neuroscience, Experimental and Biological Psychology, Philipps-University of Marburg, Gutenbergstr. 18, D-35032, Marburg, Germany.
- Center for Mind, Brain, and Behavior (CMBB), Hans-Meerwein-Straße 6, 35032, Marburg, Germany
- Behavioral Neurosciences Institute (INeC), Av. do Café, 2450, Monte Alegre, Ribeirão Preto, 14050-220, São Paulo, Brazil
| | - Lars Tacken
- Behavioral Neuroscience, Experimental and Biological Psychology, Philipps-University of Marburg, Gutenbergstr. 18, D-35032, Marburg, Germany
| | - Nicole Richter
- Behavioral Neuroscience, Experimental and Biological Psychology, Philipps-University of Marburg, Gutenbergstr. 18, D-35032, Marburg, Germany
| | - Davina Almeida
- Laboratory of Drug Development, Faculty of Pharmaceutical Sciences, University of Campinas, Campinas, São Paulo, 13083-865, Brazil
| | - Catarina Rapôso
- Laboratory of Drug Development, Faculty of Pharmaceutical Sciences, University of Campinas, Campinas, São Paulo, 13083-865, Brazil
| | - Silvana Regina de Melo
- Department of Morphological Sciences, State University of Maringá, Av. Colombo, 5790, 87020-900, Maringá, Paraná, Brazil
| | - Uwe Thomas
- Thomas RECORDING GmbH, Winchester Strasse 8, 35394 Giessen, Germany
| | - Yara Bezerra de Paiva
- 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 (SP), 14049-900, Brazil
| | - 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, Ribeirão Preto (SP), 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, Ribeirão Preto (SP), 14049-900, Brazil
| | - Norberto C Coimbra
- Behavioral Neurosciences Institute (INeC), Av. do Café, 2450, Monte Alegre, Ribeirão Preto, 14050-220, 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 (SP), 14049-900, Brazil
- NAP-USP-Neurobiology of Emotions Research Centre (NuPNE), Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Ribeirão Preto (SP), 14049-900, Brazil
| | - Rainer Schwarting
- Behavioral Neuroscience, Experimental and Biological Psychology, Philipps-University of Marburg, Gutenbergstr. 18, D-35032, Marburg, Germany
- Center for Mind, Brain, and Behavior (CMBB), Hans-Meerwein-Straße 6, 35032, Marburg, Germany
| |
Collapse
|