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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] [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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Melo-Thomas L, Schwarting RKW. Paradoxical kinesia may no longer be a paradox waiting for 100 years to be unraveled. Rev Neurosci 2023; 34:775-799. [PMID: 36933238 DOI: 10.1515/revneuro-2023-0010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 02/10/2023] [Indexed: 03/19/2023]
Abstract
Parkinson's disease (PD) is a progressive neurodegenerative disorder mainly characterized by bradykinesia and akinesia. Interestingly, these motor disabilities can depend on the patient emotional state. Disabled PD patients remain able to produce normal motor responses in the context of urgent or externally driven situations or even when exposed to appetitive cues such as music. To describe this phenomenon Souques coined the term "paradoxical kinesia" a century ago. Since then, the mechanisms underlying paradoxical kinesia are still unknown due to a paucity of valid animal models that replicate this phenomenon. To overcome this limitation, we established two animal models of paradoxical kinesia. Using these models, we investigated the neural mechanisms of paradoxical kinesia, with the results pointing to the inferior colliculus (IC) as a key structure. Intracollicular electrical deep brain stimulation, glutamatergic and GABAergic mechanisms may be involved in the elaboration of paradoxical kinesia. Since paradoxical kinesia might work by activation of some alternative pathway bypassing basal ganglia, we suggest the IC as a candidate to be part of this pathway.
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Affiliation(s)
- Liana Melo-Thomas
- Experimental and Biological Psychology, Behavioral Neuroscience, Faculty of Psychology, Philipps-University of Marburg, Gutenbergstraße 18, 35032 Marburg, Germany
- Marburg Center for Mind, Brain, and Behavior (MCMBB), Hans-Meerwein-Straße 6, 35032 Marburg, Germany
- Behavioral Neurosciences Institute (INeC), Av. do Café, 2450, Monte Alegre, Ribeirão Preto, 14050-220, São Paulo, Brazil
| | - Rainer K W Schwarting
- Experimental and Biological Psychology, Behavioral Neuroscience, Faculty of Psychology, Philipps-University of Marburg, Gutenbergstraße 18, 35032 Marburg, Germany
- Marburg Center for Mind, Brain, and Behavior (MCMBB), Hans-Meerwein-Straße 6, 35032 Marburg, Germany
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De la Casa LG, Cintado MA, González-Tirado G, Cárcel L. Conditioned catalepsy vs. Increase in locomotor activity induced by haloperidol. Neurosci Lett 2023; 802:137174. [PMID: 36906082 DOI: 10.1016/j.neulet.2023.137174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/17/2023] [Accepted: 03/07/2023] [Indexed: 03/11/2023]
Abstract
Previous research has revealed a high degree of complexity of the conditioned response that appears after associating a context with the effects of the dopaminergic antagonist haloperidol. Specifically, when a drug-free test is performed in the presence of the context, conditioned catalepsy is observed. However, if the test is extended over time, the opposite effect occurs, namely, a conditioned increase in locomotor activity. In this paper, we present the results of an experiment with rats that received repeated administration of haloperidol or saline before or after exposure to the context. Next, a drug-free test was performed to evaluate catalepsy and spontaneous locomotor activity. The results revealed, on the one hand, the expected conditioned response of catalepsy for those animals that received the drug prior to context exposure during conditioning. However, for the same group, an analysis of locomotor activity for an extended period of ten minutes after registering catalepsy revealed an increase in general activity and more faster movements compared to the control groups. These results are interpreted considering the possible temporal dynamics of the conditioned response that could induce changes in dopaminergic transmission responsible for the observed changes in locomotor activity.
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Affiliation(s)
- L G De la Casa
- Laboratory of Animal Behavior & Neuroscience, Seville University, Spain.
| | - M A Cintado
- Laboratory of Animal Behavior & Neuroscience, Seville University, Spain
| | - G González-Tirado
- Laboratory of Animal Behavior & Neuroscience, Seville University, Spain
| | - L Cárcel
- Laboratory of Animal Behavior & Neuroscience, Seville University, Spain
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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.
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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
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Low frequency deep brain stimulation in the inferior colliculus ameliorates haloperidol-induced catalepsy and reduces anxiety in rats. PLoS One 2020; 15:e0243438. [PMID: 33275614 PMCID: PMC7717509 DOI: 10.1371/journal.pone.0243438] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 11/22/2020] [Indexed: 01/23/2023] Open
Abstract
Deep brain stimulation (DBS) of the colliculus inferior (IC) improves haloperidol-induced catalepsy and induces paradoxal kinesia in rats. Since the IC is part of the brain aversive system, DBS of this structure has long been related to aversive behavior in rats limiting its clinical use. This study aimed to improve intracollicular DBS parameters in order to avoid anxiogenic side effects while preserving motor improvements in rats. Catalepsy was induced by systemic haloperidol (0.5mg/kg) and after 60 min the bar test was performed during which a given rat received continuous (5 min, with or without pre-stimulation) or intermittent (5 x 1 min) DBS (30Hz, 200–600μA, pulse width 100μs). Only continuous DBS with pre-stimulation reduced catalepsy time. The rats were also submitted to the elevated plus maze (EPM) test and received either continuous stimulation with or without pre-stimulation, or sham treatment. Only rats receiving continuous DBS with pre-stimulation increased the time spent and the number of entries into the open arms of the EPM suggesting an anxiolytic effect. The present intracollicular DBS parameters induced motor improvements without any evidence of aversive behavior, pointing to the IC as an alternative DBS target to induce paradoxical kinesia improving motor deficits in parkinsonian patients.
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Melo-Thomas L, Tonelli LC, Müller CP, Wöhr M, Schwarting RKW. Playback of 50-kHz ultrasonic vocalizations overcomes psychomotor deficits induced by sub-chronic haloperidol treatment in rats. Psychopharmacology (Berl) 2020; 237:2043-2053. [PMID: 32419116 PMCID: PMC7306038 DOI: 10.1007/s00213-020-05517-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Accepted: 04/01/2020] [Indexed: 01/05/2023]
Abstract
RATIONALE In rodents, acute haloperidol treatment induces psychomotor impairments known as catalepsy, which models akinesia in humans and is characterized as an animal model of acute Parkinsonism, whereas sub-chronic haloperidol reduces exploratory behavior, which resembles bradykinesia. Haloperidol-induced catalepsy in rats can be ameliorated by playback of 50-kHz ultrasonic vocalizations (USV), an emotionally and motivationally relevant appetitive auditory stimulus, representing an animal model of paradoxical kinesia. In a condition like PD where patients suffer from chronic motor impairments, it is paramount to assess the long-term symptom relief in an animal model of Parkinsonism. OBJECTIVES We investigated whether 50-kHz USV playback ameliorates psychomotor deficits induced by haloperidol in a sub-chronic dosing regimen. METHODS In phase 1, distance traveled and number of rearing behavior were assessed in an activity chamber in order to investigate whether sub-chronic haloperidol treatment induced psychomotor impairments. In phase 2, we investigated whether 50-kHz USV playback could overcome these impairments by assessing exploratory behaviors and approach behavior towards the sound source in the 50-kHz USV radial maze playback paradigm. RESULTS Sub-chronic haloperidol treatment led to psychomotor deficits since the distance traveled and number of rearing behavior were reduced as compared to saline control group or baseline. These psychomotor impairments were ameliorated during playback of 50-kHz USV, with haloperidol treated rats showing a clear social approach behavior towards the sound source exclusively during playback. CONCLUSIONS This study provides evidence that 50-kHz USV playback induces paradoxical kinesia in rats exhibiting motor deficits after sub-chronic haloperidol, as we previously showed after acute haloperidol treatment.
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Affiliation(s)
- Liana Melo-Thomas
- Experimental and Biological Psychology, Behavioral Neuroscience, Faculty of Psychology, Philipps-University of Marburg, Gutenbergstraße 18, 35032, Marburg, Germany.
- Center for Mind, Brain, and Behavior (CMBB), Hans-Meerwein-Straße 6, 35032, Marburg, Germany.
- Institute of Neuroscience and Behavior (INeC), Av. do Café, 2450, Monte Alegre, Ribeirão Preto, São Paulo, 14050-220, Brazil.
| | - Luan C Tonelli
- Experimental and Biological Psychology, Behavioral Neuroscience, Faculty of Psychology, Philipps-University of Marburg, Gutenbergstraße 18, 35032, Marburg, Germany
| | - Christian P Müller
- Section of Addiction Medicine, Department of Psychiatry and Psychotherapy, University Clinic, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Markus Wöhr
- Experimental and Biological Psychology, Behavioral Neuroscience, Faculty of Psychology, Philipps-University of Marburg, Gutenbergstraße 18, 35032, Marburg, Germany
- Center for Mind, Brain, and Behavior (CMBB), Hans-Meerwein-Straße 6, 35032, Marburg, Germany
| | - Rainer K W Schwarting
- Experimental and Biological Psychology, Behavioral Neuroscience, Faculty of Psychology, Philipps-University of Marburg, Gutenbergstraße 18, 35032, Marburg, Germany
- Center for Mind, Brain, and Behavior (CMBB), Hans-Meerwein-Straße 6, 35032, Marburg, Germany
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Blockade of synaptic activity in the neostriatum and activation of striatal efferent pathways produce opposite effects on panic attack-like defensive behaviours evoked by GABAergic disinhibition in the deep layers of the superior colliculus. Physiol Behav 2018; 196:104-111. [DOI: 10.1016/j.physbeh.2018.07.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 07/19/2018] [Accepted: 07/24/2018] [Indexed: 12/15/2022]
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Tonelli LC, Wöhr M, Schwarting R, Melo-Thomas L. Paradoxical kinesia induced by appetitive 50-kHz ultrasonic vocalizations in rats depends on glutamatergic mechanisms in the inferior colliculus. Neuropharmacology 2018; 135:172-179. [PMID: 29550392 DOI: 10.1016/j.neuropharm.2018.03.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 03/06/2018] [Accepted: 03/12/2018] [Indexed: 10/17/2022]
Abstract
Paradoxical kinesia is a sudden transient ability of akinetic patients to perform motor tasks they are otherwise unable to perform. This phenomenon is known to depend on the patient's emotional state and external stimuli. Paradoxical kinesia can be induced by appetitive 50-kHz ultrasonic vocalizations (USV) in rats displaying catalepsy following systemic haloperidol. We investigated the role of the inferior colliculus (IC) in paradoxical kinesia induced by 50-kHz USV, since the IC modulates haloperidol-induced catalepsy. We focused on glutamatergic and GABAergic neurotransmission, with male rats receiving intracollicular NMDA or the GABA receptor agonist diazepam 10 min before systemic haloperidol. Catalepsy time was assessed by means of the bar test, during which rats were exposed to playback of 50-kHz USV, white noise, and background noise. Our results show that playback of 50-kHz USV induced paradoxical kinesia by reducing haloperidol-induced catalepsy in rats which had received saline intracollicular microinjection. This paradoxical kinesia effect of 50-kHz USV playback on haloperidol-induced catalepsy was prevented by intracollicular NMDA administration. Although intracollicular diazepam microinjection potentiated haloperidol-induced catalepsy, it did not affect the response to 50-kHz USV playback. Together, NMDA receptor agonist suppressed the effectiveness of 50-kHz USV playback, whereas diazepam did not. These findings suggest that the IC is a key structure involved in paradoxical kinesia, with relevant processes being glutamatergic rather than GABAergic. Our approach thus appears useful for uncovering neural mechanisms of paradoxical kinesia and it might help identifying novel therapeutic targets for Parkinson's disease.
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Affiliation(s)
- Luan Castro Tonelli
- Experimental and Biological Psychology, Behavioral Neuroscience, Faculty of Psychology, Philipps-University of Marburg, Gutenbergstraße 18, 35032 Marburg, Germany
| | - Markus Wöhr
- Experimental and Biological Psychology, Behavioral Neuroscience, Faculty of Psychology, Philipps-University of Marburg, Gutenbergstraße 18, 35032 Marburg, Germany; Marburg Center for Mind, Brain, and Behavior (MCMBB), Hans-Meerwein-Straße 6, 35032 Marburg, Germany
| | - Rainer Schwarting
- Experimental and Biological Psychology, Behavioral Neuroscience, Faculty of Psychology, Philipps-University of Marburg, Gutenbergstraße 18, 35032 Marburg, Germany; Marburg Center for Mind, Brain, and Behavior (MCMBB), Hans-Meerwein-Straße 6, 35032 Marburg, Germany
| | - Liana Melo-Thomas
- Experimental and Biological Psychology, Behavioral Neuroscience, Faculty of Psychology, Philipps-University of Marburg, Gutenbergstraße 18, 35032 Marburg, Germany; Marburg Center for Mind, Brain, and Behavior (MCMBB), Hans-Meerwein-Straße 6, 35032 Marburg, Germany; Behavioral Neurosciences Institute (INeC), Av. do Café, 2450, Monte Alegre, Ribeirão Preto, 14050-220, São Paulo, Brazil.
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Engelhardt KA, Marchetta P, Schwarting RKW, Melo-Thomas L. Haloperidol-induced catalepsy is ameliorated by deep brain stimulation of the inferior colliculus. Sci Rep 2018; 8:2216. [PMID: 29396521 PMCID: PMC5797241 DOI: 10.1038/s41598-018-19990-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 01/02/2018] [Indexed: 12/27/2022] Open
Abstract
Deep brain stimulation (DBS) has evolved as a promising alternative treatment for Parkinson’s disease (PD), but the underlying mechanisms remain poorly understood. Moreover, conventional DBS protocols targeted at basal ganglia sites can turn out completely ineffective for some PD patients, warranting the search for alternative targets. The inferior colliculus (IC) is a midbrain auditory relay station involved in sensorimotor processes. High-frequency 2500 Hz electrical stimulation of the IC elicits escape behaviour and interferes with haloperidol-induced catalepsy in rats, a state reminiscent of Parkinsonian akinesia, but clinical implication is limited since the protocol is aversive. However, typical DBS stimulation frequencies range between 20–180 Hz. We therefore tested the effects of a low-frequency 30 Hz-DBS protocol on haloperidol-induced catalepsy and aversive behaviour in rats. We show that low-frequency 30 Hz-DBS targeted at the IC strongly ameliorates haloperidol-induced catalepsy without any evidence of stimulation-induced escape behaviour. Furthermore, 30 Hz-DBS of the IC produced no place avoidance in a place conditioning paradigm and induced no anxiety-related behaviour on the elevated plus maze, indicating that the protocol has no aversive or anxiogenic side effects. Our findings provide first evidence that the IC can serve as an alternative, non-conventional DBS target.
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Affiliation(s)
- K-Alexander Engelhardt
- Behavioral Neuroscience, Experimental and Biological Psychology, Philipps-University of Marburg, Gutenbergstr. 18, D-35032, Marburg, Germany
| | - Philine Marchetta
- Behavioral Neuroscience, Experimental and Biological Psychology, Philipps-University of Marburg, Gutenbergstr. 18, D-35032, Marburg, Germany
| | - Rainer K W Schwarting
- Behavioral Neuroscience, Experimental and Biological Psychology, Philipps-University of Marburg, Gutenbergstr. 18, D-35032, Marburg, Germany.,Marburg Center for Mind, Brain, and Behavior (MCMBB), Marburg, Hans-Meerwein-Straße 6, 35032, Marburg, Germany
| | - Liana Melo-Thomas
- Behavioral Neuroscience, Experimental and Biological Psychology, Philipps-University of Marburg, Gutenbergstr. 18, D-35032, Marburg, Germany. .,Marburg Center for Mind, Brain, and Behavior (MCMBB), Marburg, Hans-Meerwein-Straße 6, 35032, Marburg, Germany. .,Behavioral Neurosciences Institute (INeC), Av. do Café, 2450, Monte Alegre, Ribeirão Preto, 14050-220, São Paulo, Brazil.
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Melo-Thomas L, Gil-Martínez AL, Cuenca L, Estrada C, Gonzalez-Cuello A, Schwarting RK, Herrero MT. Electrical stimulation or MK-801 in the inferior colliculus improve motor deficits in MPTP-treated mice. Neurotoxicology 2018; 65:38-43. [PMID: 29366825 DOI: 10.1016/j.neuro.2018.01.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 01/16/2018] [Accepted: 01/17/2018] [Indexed: 12/31/2022]
Abstract
The inferior colliculus (IC) is an important midbrain relay station for the integration of descending and ascending auditory information. Additionally, the IC has been implicated in processing sensorimotor responses. Glutamatergic and GABAergic manipulations in the IC can improve motor deficits as demonstrated by the animal model of haloperidol-induced catalepsy. However, how the IC influences motor function remains unclear. We investigated the effects of either intracollicular deep brain stimulation (DBS) or microinjection of the glutamatergic antagonist MK-801 or the agonist NMDA in C57BL/6J mice chronically treated with saline or 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). After DBS or microinjections, the mice were submitted to rotarod and open field tests, respectively. DBS in the IC was effective to increase the time spent on the rotarod in MPTP-treated mice. After unilateral microinjection of MK-801, but not NMDA, MPTP-treated mice increased the distance travelled in the open field (p < 0.05). In conclusion, intracollicular DBS or MK-801 microinjection can improve motor performance in parkinsonian mice suggesting the IC as a new and non-conventional therapeutic target in motor impairment.
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Affiliation(s)
- L Melo-Thomas
- Behavioral Neuroscience, Experimental and Biological Psychology, Philipps-University of Marburg, Gutenbergstr. 18, 35032, Marburg, Germany; Instituto de Neurociências & Comportamento - INEC, Campus USP, Ribeirão Preto, SP, 14040-901, Brazil; Marburg Center for Mind, Brain, and Behavior (MCMBB), Hans-Meerwein-Straße 6, 35032 Marburg, Germany.
| | - A L Gil-Martínez
- Clinical and Experimental Neuroscience Group (NiCE-IMIB), Department of Human Anatomy and Psychobiology, Institute for Aging Research, School of Medicine, University of Murcia, Murcia, Spain; Biomedical Research Institute of Murcia (IMIB-Arrixaca), Campus of Health Sciences, University of Murcia, 30120 Murcia, Spain
| | - L Cuenca
- Clinical and Experimental Neuroscience Group (NiCE-IMIB), Department of Human Anatomy and Psychobiology, Institute for Aging Research, School of Medicine, University of Murcia, Murcia, Spain; Biomedical Research Institute of Murcia (IMIB-Arrixaca), Campus of Health Sciences, University of Murcia, 30120 Murcia, Spain
| | - C Estrada
- Clinical and Experimental Neuroscience Group (NiCE-IMIB), Department of Human Anatomy and Psychobiology, Institute for Aging Research, School of Medicine, University of Murcia, Murcia, Spain; Biomedical Research Institute of Murcia (IMIB-Arrixaca), Campus of Health Sciences, University of Murcia, 30120 Murcia, Spain
| | - A Gonzalez-Cuello
- Clinical and Experimental Neuroscience Group (NiCE-IMIB), Department of Human Anatomy and Psychobiology, Institute for Aging Research, School of Medicine, University of Murcia, Murcia, Spain; Biomedical Research Institute of Murcia (IMIB-Arrixaca), Campus of Health Sciences, University of Murcia, 30120 Murcia, Spain
| | - R K Schwarting
- Behavioral Neuroscience, Experimental and Biological Psychology, Philipps-University of Marburg, Gutenbergstr. 18, 35032, Marburg, Germany; Instituto de Neurociências & Comportamento - INEC, Campus USP, Ribeirão Preto, SP, 14040-901, Brazil
| | - M T Herrero
- Clinical and Experimental Neuroscience Group (NiCE-IMIB), Department of Human Anatomy and Psychobiology, Institute for Aging Research, School of Medicine, University of Murcia, Murcia, Spain; Biomedical Research Institute of Murcia (IMIB-Arrixaca), Campus of Health Sciences, University of Murcia, 30120 Murcia, Spain.
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Tonelli LC, Wöhr M, Schwarting R, Melo-Thomas L. Awakenings in rats by ultrasounds: A new animal model for paradoxical kinesia. Behav Brain Res 2017; 337:204-209. [PMID: 28916501 DOI: 10.1016/j.bbr.2017.09.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 09/07/2017] [Accepted: 09/08/2017] [Indexed: 02/07/2023]
Abstract
Paradoxical kinesia refers to a sudden transient ability of akinetic patients to perform motor tasks they are otherwise unable to perform. The mechanisms underlying this phenomenon are unknown due a paucity of valid animal models that faithfully reproduce paradoxical kinesia. Here, in a first experiment, we present a new method to study paradoxical kinesia by "awakening" cataleptic rats through presenting appetitive 50-kHz ultrasonic vocalizations (USV), which are typical for social situations with positive valence, like juvenile play or sexual encounters ("rat laughter"). Rats received systemic haloperidol to induce catalepsy, which was assessed by means of the bar test. During that test, 50-kHz USV, time- and amplitude-matched white noise (NOISE), or background noise (BACKGROUND) were played back and compared to SILENCE. Every animal was exposed to all four acoustic stimuli in random order, with four independent groups of rats being tested. Only when exposed to playback of appetitive 50-kHz USV, the otherwise akinetic rats rapidly started to move efficiently. The acoustic control stimuli, in contrast, did not release rats from catalepsy, despite eliciting the auditory pinna reflex and head movements towards the sound source. Moreover, in a second experiment, playback of aversive 22-kHz USV and relevant acoustic control stimuli did also not significantly affect catalepsy time. Together, our animal model provides a completely new approach to study mechanisms of paradoxical kinesia, which might help to improve behavioral therapies for Parkinson's disease and other disorders, where akinetic or cataleptic states occur.
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Affiliation(s)
- Luan Castro Tonelli
- Experimental and Biological Psychology, Behavioral Neuroscience, Faculty of Psychology, Philipps-University of Marburg, Gutenbergstrasse 18, 35032 Marburg, Germany.
| | - Markus Wöhr
- Experimental and Biological Psychology, Behavioral Neuroscience, Faculty of Psychology, Philipps-University of Marburg, Gutenbergstrasse 18, 35032 Marburg, Germany.
| | - Rainer Schwarting
- Experimental and Biological Psychology, Behavioral Neuroscience, Faculty of Psychology, Philipps-University of Marburg, Gutenbergstrasse 18, 35032 Marburg, Germany.
| | - Liana Melo-Thomas
- Experimental and Biological Psychology, Behavioral Neuroscience, Faculty of Psychology, Philipps-University of Marburg, Gutenbergstrasse 18, 35032 Marburg, Germany; Behavioral Neurosciences Institute (INeC), Av. do Café, 2450, Monte Alegre, Ribeirão Preto, 14050-220, São Paulo, Brazil.
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Medeiros P, de Freitas RL, Silva MO, Coimbra NC, Melo-Thomas L. CB1 cannabinoid receptor-mediated anandamide signaling mechanisms of the inferior colliculus modulate the haloperidol-induced catalepsy. Neuroscience 2016; 337:17-26. [PMID: 27595886 DOI: 10.1016/j.neuroscience.2016.08.047] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 08/23/2016] [Accepted: 08/28/2016] [Indexed: 10/21/2022]
Abstract
The inferior colliculus (IC), a midbrain structure that processes acoustic information of aversive nature, is distinguished from other auditory nuclei in the brainstem by its connections with structures of the motor system. Previous evidence relating the IC to motor behavior shows that glutamatergic and GABAergic mechanisms in the IC exert influence on systemic haloperidol-induced catalepsy. There is substantial evidence supporting a role played by the endocannabinoid system as a modulator of the glutamatergic neurotransmission, as well as the dopaminergic activity in the basal nuclei and therefore it may be considered as a potential pharmacological target for the treatment of movement disorders. The present study evaluated if the endocannabinoid system in the IC plays a role in the elaboration of systemic haloperidol-induced catalepsy. Male Wistar rats received intracollicular microinjection of either the endogenous cannabinoid anandamide (AEA) at different concentrations (5, 50 or 100pmol/0.2μl), the CB1 cannabinoid receptor antagonist AM251 at 50, 100 or 200pmol/0.2μl or vehicle, followed by intraperitoneal (IP) administration of either haloperidol at 0.5 or 1mg/kg or physiological saline. Systemic injection of haloperidol at both doses (0.5 or 1mg/kg, IP) produced a cataleptic state, compared to vehicle/physiological saline-treated group, lasting 30 and 50min after systemic administration of the dopaminergic receptors non-selective antagonist. The midbrain microinjection of AEA at 50pmol/0.2μl increased the latency for stepping down from the horizontal bar after systemic administration of haloperidol. Moreover, the intracollicular administration of AEA at 50pmol/0.2μl was able to increase the duration of catalepsy as compared to AEA at 100pmol/0.2-μl-treated group. Intracollicular pretreatment with AM251 at the intermediate concentration (100pmol/0.2μl) was able to decrease the duration of catalepsy after systemic administration of haloperidol. However, neither the intracollicular microinjection of AM251 at the lowest (50pmol/0.2μl) nor at the highest (200pmol/0.2μl) concentration was able to block the systemic haloperidol-induced catalepsy. Furthermore, the intracollicular administration of AM251 at 100pmol/0.2μl was able to decrease the duration of catalepsy as compared to AM251 at 50pmol/0.2μl- and AM251 at 200pmol/0.2-μl-treated group. The latency for stepping down from the horizontal bar - induced by haloperidol administration - was decreased when microinjection of AEA at 50pmol/0.2μl was preceded with blockade of CB1 receptor with AM251 (100pmol/0.2μl). Our results strengthen the involvement of CB1-signaled endocannabinoid mechanisms of the IC in the neuromodulation of catalepsy induced by systemic administration of the dopaminergic receptors non-selective antagonist haloperidol.
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Affiliation(s)
- P 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, 14049-900 São Paulo, Brazil; Department of Neurocience and Behavioral Sciences, Division of Neurology, Post-Graduation Section, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo 14049-900, Brazil; Neuroelectrophysiology Multiuser Center and Neurobiology of Pain and Emotions Laboratory, 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; Department of Biosciences, Federal University of São Paulo (UNIFESP), Av. D. Ana Costa, 95, Vila Mathias, Santos, São Paulo 11060-001, Brazil
| | - R L de Freitas
- 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; Neurobiology of Emotions Research Center (NAP-USP-NuPNE), Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, 14049-900 São Paulo, Brazil; Neuroelectrophysiology Multiuser Center and Neurobiology of Pain and Emotions Laboratory, 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
| | - M O 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; Neuroelectrophysiology Multiuser Center and Neurobiology of Pain and Emotions Laboratory, 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
| | - N C 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; Neurobiology of Emotions Research Center (NAP-USP-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), Av. do Café, 2450, Ribeirão Preto, 14050-220 São Paulo, Brazil; Department of Neurocience and Behavioral Sciences, Division of Neurology, Post-Graduation Section, Ribeirão Preto Medical School of the University of São Paulo (FMRP-USP), Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo 14049-900, Brazil; Neuroelectrophysiology Multiuser Center and Neurobiology of Pain and Emotions Laboratory, 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.
| | - L Melo-Thomas
- Laboratory of Experimental and Physiological Psychology, Philipps-University of Marburg, Gutenbergstrasse 18, 35032 Marburg, Germany; Behavioural Neurosciences Institute (INeC), Av. do Café, 2450, Ribeirão Preto, 14050-220 São Paulo, Brazil; Department of Biosciences, Federal University of São Paulo (UNIFESP), Av. D. Ana Costa, 95, Vila Mathias, Santos, São Paulo 11060-001, Brazil.
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13
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Melo-Thomas L, Thomas U. Deep brain stimulation of the inferior colliculus: A possible animal model to study paradoxical kinesia observed in some parkinsonian patients? Behav Brain Res 2015; 279:1-8. [DOI: 10.1016/j.bbr.2014.10.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 10/20/2014] [Accepted: 10/24/2014] [Indexed: 11/16/2022]
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