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Kaźmierczak M, Nicola SM. The Arousal-motor Hypothesis of Dopamine Function: Evidence that Dopamine Facilitates Reward Seeking in Part by Maintaining Arousal. Neuroscience 2022; 499:64-103. [PMID: 35853563 PMCID: PMC9479757 DOI: 10.1016/j.neuroscience.2022.07.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 06/28/2022] [Accepted: 07/12/2022] [Indexed: 10/17/2022]
Abstract
Dopamine facilitates approach to reward via its actions on dopamine receptors in the nucleus accumbens. For example, blocking either D1 or D2 dopamine receptors in the accumbens reduces the proportion of reward-predictive cues to which rats respond with cued approach. Recent evidence indicates that accumbens dopamine also promotes wakefulness and arousal, but the relationship between dopamine's roles in arousal and reward seeking remains unexplored. Here, we show that the ability of systemic or intra-accumbens injections of the D1 antagonist SCH23390 to reduce cued approach to reward depends on the animal's state of arousal. Handling the animal, a manipulation known to increase arousal, was sufficient to reverse the behavioral effects of the antagonist. In addition, SCH23390 reduced spontaneous locomotion and increased time spent in sleep postures, both consistent with reduced arousal, but also increased time spent immobile in postures inconsistent with sleep. In contrast, the ability of the D2 antagonist haloperidol to reduce cued approach was not reversible by handling. Haloperidol reduced spontaneous locomotion but did not increase sleep postures, instead increasing immobility in non-sleep postures. We place these results in the context of the extensive literature on dopamine's contributions to behavior, and propose the arousal-motor hypothesis. This novel synthesis, which proposes that two main functions of dopamine are to promote arousal and facilitate motor behavior, accounts both for our findings and many previous behavioral observations that have led to disparate and conflicting conclusions.
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Affiliation(s)
- Marcin Kaźmierczak
- Departments of Neuroscience and Psychiatry, Albert Einstein College of Medicine, 1300 Morris Park Ave, Forchheimer 111, Bronx, NY 10461, USA
| | - Saleem M Nicola
- Departments of Neuroscience and Psychiatry, Albert Einstein College of Medicine, 1300 Morris Park Ave, Forchheimer 111, Bronx, NY 10461, USA.
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Waku I, Magalhães MS, Alves CO, de Oliveira AR. Haloperidol-induced catalepsy as an animal model for parkinsonism: A systematic review of experimental studies. Eur J Neurosci 2021; 53:3743-3767. [PMID: 33818841 DOI: 10.1111/ejn.15222] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 03/29/2021] [Accepted: 03/31/2021] [Indexed: 11/28/2022]
Abstract
Several useful animal models for parkinsonism have been developed so far. Haloperidol-induced catalepsy is often used as a rodent model for the study of motor impairments observed in Parkinson's disease and related disorders and for the screening of potential antiparkinsonian compounds. The objective of this systematic review is to identify publications that used the haloperidol-induced catalepsy model for parkinsonism and to explore the methodological characteristics and the main questions addressed in these studies. A careful systematic search of the literature was carried out by accessing articles in three different databases: Web of Science, PubMed and SCOPUS. The selection and inclusion of studies were performed based on the abstract and, subsequently, on full-text analysis. Data extraction included the objective of the study, study design and outcome of interest. Two hundred and fifty-five articles were included in the review. Publication years ranged from 1981 to 2020. Most studies used the model to explore the effects of potential treatments for parkinsonism. Although the methodological characteristics used are quite varied, most studies used Wistar rats as experimental subjects. The most frequent dose of haloperidol used was 1.0 mg/kg, and the horizontal bar test was the most used to assess catalepsy. The data presented here provide a framework for an evidence-based approach to the design of preclinical research on parkinsonism using the haloperidol-induced catalepsy model. This model has been used routinely and successfully and is likely to continue to play a critical role in the ongoing search for the next generation of therapeutic interventions for parkinsonism.
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Affiliation(s)
- Isabelle Waku
- Department of Psychology, Center of Education and Human Sciences, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
| | - Mylena S Magalhães
- Department of Psychology, Center of Education and Human Sciences, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
| | - Camila O Alves
- Department of Psychology, Center of Education and Human Sciences, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil.,Institute of Neuroscience and Behavior (INeC), Ribeirão Preto, SP, Brazil
| | - Amanda R de Oliveira
- Department of Psychology, Center of Education and Human Sciences, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil.,Institute of Neuroscience and Behavior (INeC), Ribeirão Preto, SP, Brazil
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Sinyakova NA, Kulikov AV. Expression of genes in the 111.35–116.16 million bp fragment of chromosome 13 in brain of mice with different predisposition to hereditary catalepsy. Mol Biol 2014. [DOI: 10.1134/s0026893314040141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Vasconcelos SM, Nascimento VS, Nogueira CR, Vieira CM, Sousa FCF, Fonteles MM, Viana GS. Effects of haloperidol on rat behavior and density of dopaminergic D2-like receptors. Behav Processes 2003; 63:45-52. [PMID: 12763267 DOI: 10.1016/s0376-6357(03)00028-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The present work shows the effects of a typical neuroleptic drug (haloperidol, HAL) on rat behavior (catalepsy and locomotor activity) and dopaminergic D2-like receptor densities in the hippocampus and striatum. Male Wistar rats (2-3 months old) were treated daily for 30 days with HAL (0.2 or 1mg/kg, intraperitoneally (i.p.)). At the end of treatment and 1h or 1, 3, 7 and 15 days after drug withdrawal, animals were subjected to behavioral tests and sacrificed afterwards for binding assays. The results showed that behavioral effects with both doses were significant only 1h and 1 day after withdrawal, and similar to controls at the third day. An up-regulation of D2 receptors was observed in the striatum (28% increase) but not in the hippocampus after 24h HAL (1mg/kg) withdrawal. However, an up-regulation was seen in both areas (1mg/kg) 3 days after drug withdrawal (58 and 42% increases in the hippocampus and striatum, respectively), and continued after 7 days of withdrawal only in the striatum (43 and 49% for the doses of 0.2 and 1mg/kg, respectively), suggesting the influence of dose, age, and time of drug withdrawal on these parameters. The up-regulation disappeared after 15 days of haloperidol withdrawal. Increases (72 and 140%) in constant dissociation values (K(d)) values were also observed 7 days after withdrawal. Results show differences on a time-basis between behavioral alterations and dopaminergic D2 receptors up-regulation.
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Affiliation(s)
- Silvânia M.M. Vasconcelos
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Rua Cel. Nunes de Melo 1127, 60431-970, Fortaleza, Brazil
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5
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Fregoso-Aguilar T, Urióstegui T, Zamudio S, De la Cruz F. The differential effect of haloperidol and repetitive induction on four immobility responses in mouse and guinea pig. Behav Pharmacol 2002; 13:253-60. [PMID: 12218505 DOI: 10.1097/00008877-200207000-00001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The modification by haloperidol and repetitive induction on four immobility responses -- tonic immobility, cataleptic immobility, immobility by clamping the neck and dorsal immobility -- were compared in mice and guinea pigs. Without drug, three out of four responses (cataleptic, neck clamp and dorsal immobility) were induced in mice; guinea pigs displayed all four responses. Haloperidol (5 mg/kg i.p.) potentiated the three responses shown by mice, but did not potentiate the four responses in guinea pigs. In both undrugged and haloperidol-treated mice, only the cataleptic immobility response was potentiated by repetition. In guinea pigs, none of the four immobility responses was affected due to repetition, haloperidol or a combination of both. These data are discussed, considering that, although these immobility responses could be mediated by the same neurotransmitters (e.g. dopamine), they are possibly expressed in a differential manner as a function of the kind of stimulus used to trigger the response, characteristics of the species and, in some immobility responses such as cataleptic immobility, as a function of their interaction with habituation or another learning-like process.
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Affiliation(s)
- T Fregoso-Aguilar
- Department of Physiology, National School of Biological Sciences, National Polytechnic Institute, Mexico
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6
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Abstract
Scientists have spent hundreds of years trying to understand how the brain controls movement. Why has there been so little interest in knowing how the brain STOPS movement? This review calls attention to behavioral phenomena in which an animal or human undergoes temporary total-body arrest of movement, that is, behavioral arrest (BA). These states can be actively induced by visual stimuli, by body and limb manipulations, and by drugs. Historically, these states have been considered as unrelated, and their literature does not cross-connect. What is known about the causal mechanisms is scant, limited mostly to implication of the brainstem in manipulation-induced BA and dopaminergic blockade in the striatum in the case of drug-induced BA. The possibility has not been experimentally tested that all of these states share with each other not only an active global immobility in which awkward postures are maintained, but also underlying neural mechanisms. This review identifies key brainstem, diencephalic, and basal forebrain areas that seem to be involved in causing BA. We review the evidence that suggest a possible role in BA for the following brain structures: entopeduncular nucleus, medullary and pontine reticular zones, parabrachial region, pedunculopontine nucleus and nearby areas, substantia nigra, subthalamic nucleus, ventromedial thalamic nucleus, and zona incerta. Such areas may operate as a BA control system. Confirmation of which brain areas operate collectively in BA would require testing of several kinds of BA in the same animals with the same kinds of experimental tests. Areas and mechanisms might be elucidated through a strategic combination of the following research approaches: imaging (fMRI, c-fos), lesions (of areas, of afferent and efferent pathways), chemical microstimulation, and electrical recording (of multiple units and field potentials, with an emphasis on testing coherence among areas). We suggest the working hypothesis that BA is created and sustained by coherent, perhaps oscillatory, activity among a group of basal forebrain and brainstem areas that collectively disrupt the normal spinal and supraspinal sequencing controls of reciprocal actions on the extensors and flexors that otherwise produce movement.
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Affiliation(s)
- W R Klemm
- Department of Veterinary Anatomy and Public Health, Mail Stop 4458, Texas A&M University, College Station, TX 77843-4458, USA.
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Ushijima I, Mizuki Y, Kobayashi T, Aoki T, Suetsugi M, Usami K, Watanabe Y. Effects of pertussis toxin on behavioral responses during different withdrawal periods from chronic cocaine treatment. Prog Neuropsychopharmacol Biol Psychiatry 2000; 24:1369-77. [PMID: 11125860 DOI: 10.1016/s0278-5846(00)00134-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
1. The role of Gi-proteins on cataleptic responses induced by SCH23390 and haloperidol in chronic cocaine-treated mice was examined by intracerebroventricullor (i.c. v.) and intravenous (i. v.) injections of pertussis toxin (PTX), which catalyzes adenosine diphosphate (ADP)-ribosylation of Gi-proteins. 2. In animals pretreated chronically with cocaine (10 mg/kg, s.c. on alternating days for 21 days), haloperidol (0.1 mg/kg i.p.) exerted an enhanced cataleptic response, but SCH23390 (0.1 mg/kg i.p.) produced an attenuated response at day 1, which converted to a supernormal response, when it was administered 20 days after the last cocaine injection. 3. The attenuated SCH23390 cataleptic response (D1 receptor supersensitivity induced one day after chronic cocaine treatment), was reversed one day after a single dose of PTX, which by itself had no effect, whereas the enhanced haloperidol catalepsy was further enhanced with same dose of toxin. 4. On the other hand, the enhanced SCH23390- and haloperidol-induced cataleptic responses seen during longer withdrawal period (20 days) were potentiated 20 days after a single coadministration of PTX. The stimulatory effects of PTX on the enhanced SCH23390-induced cataleptic response (D1 receptor subsensitivity induced during long-term withdrawal periods from chronic cocaine treatment), may be due to an indirect inhibition of D1 receptors (a synergistic effect) via blockade of postsynaptic dopamine D2 receptors. 5. The postsynaptic D1 receptor supersensitivity and D2 receptor subsensitivity induced one day after chronic cocaine treatment may involve greater Gi-protein ADP-ribosylation in the presynaptic cell body (VTA) than that in the postsynaptic cell body. On the other hand, the subsensitivity of postsynaptic dopamine D1 and D2 receptors (the enhanced SCH23390- and haloperidol-induced cataleptic responses) seen during longer withdrawal periods may mainly involve Gi-protein ADP ribosylation in the postsynaptic cell body, and which may be mediated by a PTX-sensitive muscarinic M2 and/orGABAB receptor activation.
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Affiliation(s)
- I Ushijima
- Shimonoseki Hospital of Mental and Nervous Disorders, Tormitoh Shimonoseki, Yamaguchi, Japan
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Ushijima I, Kawano M, Kaneyuki H, Suetsugi M, Usami K, Hirano H, Mizuki Y, Yamada M. Dopaminergic and cholinergic interaction in cataleptic responses in mice. Pharmacol Biochem Behav 1997; 58:103-8. [PMID: 9264077 DOI: 10.1016/s0091-3057(96)00478-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The cataleptogenic effects of haloperidol, a dopamine D2 receptor antagonist; SCH23390, a D1 receptor antagonist; physostigmine, a cholinesterase inhibitor; and pilocarpine, a muscarinic M1 receptor agonist, were challenged by pretreatment of mice with SKF38393, a dopamine D1 receptor agonist; apomorphine, a dopamine D1/D2 receptor agonist (mainly D2 receptor); pirenzepine, a muscarinic M1 receptor antagonist; and scopolamine, a muscarinic M1/M2 receptor antagonist. The effect of physostigmine and pilocarpine on haloperidol and SCH23390 cataleptic responses was also examined. Each of the challenging agents blocked one or more of the cataleptogenic agents, but only scopolamine blocked all four. Pirenzepine blocked cataleptic responses induced by SCH23390 and pilocarpine, but not those by haloperidol and physostigmine. The results of this study suggest that the action of physostigmine (endogenous acetylcholine) on M2 receptors might be more potent than that on muscarinic M1 receptors. A further interesting observation was that the haloperidol-induced catalepsy was enhanced by physostigmine pretreatment, but not by pilocarpine pretreatment, whereas the SCH23390-induced catalepsy showed the opposite spectrum of enhancement by the two cholinergic agonists. We conclude that, although the four cataleptogenic agents act via the dopaminergic-cholinergic systems, their pharmacological differences may be due largely to the different receptor subtypes that are involved in the mediation of catalepsy produced by each agent. Thus, dopamine receptors not only influence the cholinergic muscarinic receptors, but muscarinic M1 and M2 receptors also might mediate dopamine D1 and D2 receptor responses, respectively. The results suggest that there are, at the least, relationships between muscarinic M1 receptors and dopaminergic D1 receptors, and between muscarinic M2 receptors and dopaminergic D2 receptors. Dopamine D1 and D2 receptors may interact in a synergistic fashion on dopaminergic systems, but act independently of each other in influencing other system such as cholinergic neurons.
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Affiliation(s)
- I Ushijima
- Department of Neuropsychiatry, Yamaguchi University School of Medicine, Japan
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9
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Andersen HL, Kilpatrick IC. Prevention by (+/-)-8-hydroxy-2-(di-n-propylamino)tetralin of both catalepsy and the rises in rat striatal dopamine metabolism caused by haloperidol. Br J Pharmacol 1996; 118:421-7. [PMID: 8735647 PMCID: PMC1909633 DOI: 10.1111/j.1476-5381.1996.tb15419.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
1. The influence of (+/-)-8-hydroxy-2-(di-n-propylamino)tetralin (8-OH-DPAT) on haloperidol-induced increases in the dopamine metabolites, 3,4-dihydroxyphenylacetic acid (DOPAC) and 4-hydroxy-3-methoxyphenylacetic acid (HVA), was measured in three microdissected brain regions of the rat following a quantitative assessment of catalepsy. 2. Haloperidol alone (2.66 mumol kg-1, i.p.) caused a robust cataleptic response. Given 30 min after haloperidol, 8-OH-DPAT (76 or 760 nmol kg-1, s.c.) prevented catalepsy in 30% and 100% of rats, respectively. 3. Haloperidol significantly increased the DOPAC (by 2 to 4 fold) and HVA (by 3 to 7 fold) contents of the caudate-putamen, nucleus accumbens and medial prefrontal cortex. Given alone, only the lower dose of 8-OH-DPAT caused a significant biochemical change, a doubling of cortical DOPAC. 4. In the cases where catalepsy was prevented by either dose of 8-OH-DPAT, the haloperidol-induced increases in DOPAC and HVA were consistently lower in the caudate-putamen. This pattern was true for the rise in cortical HVA but only in response to the lower dose of 8-OH-DPAT. In contrast, neither dose of 8-OH-DPAT was able to influence the haloperidol-induced rises in cortical DOPAC. In the nucleus accumbens, 8-OH-DPAT did not affect the haloperidol-induced increases in the dopamine metabolites, irrespective of the dose employed or the resulting behaviour. When catalepsy was not prevented, 8-OH-DPAT did not alter the neurochemical responses to haloperidol in any region. 5. These results suggest that part of the mechanism by which 8-OH-DPAT prevents haloperidol-induced catalepsy is reflected by a reversal of the compensatory increase in meso-striatal and/or meso-cortical dopamine neuronal activity that normally accompanies postsynaptic dopamine receptor blockade with haloperidol.
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Affiliation(s)
- H L Andersen
- Department of Pharmacology, School of Medical Sciences, Bristol
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10
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Yoshida Y, Ono T, Kawano K, Miyagishi T. Distinct sites of dopaminergic and glutamatergic regulation of haloperidol-induced catalepsy within the rat caudate-putamen. Brain Res 1994; 639:139-48. [PMID: 7910107 DOI: 10.1016/0006-8993(94)91774-4] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Previous studies have indicated that corticostriatal glutamatergic pathways are implicated in the regulation of neuroleptic catalepsy. To obtain a better understanding of the way in which dopamine (DA) and glutamate interact within the caudate-putamen (CP) in the development of catalepsy, we investigated the regional distribution within the rat CP of the cataleptogenic effect of haloperidol and its antagonism by D(-)-2-amino-5-phosphonopentanoic acid (D(-)AP5), a selective antagonist of the N-methyl-D-aspartate (NMDA) glutamate receptor subtype. Bilateral injections of haloperidol (3 micrograms/side) into the rostral ventromedial (VM) CP induced potent catalepsy with a short latency after the injection. In contrast, only a weak cataleptic response, of slower onset, was observed after haloperidol injections into the rostral ventrolateral (VL), rostral dorsomedial (DM), or rostral dorsolateral (DL) CP, or into the nucleus accumbens. D(-)AP5 (5 micrograms/side) injected bilaterally into the dorsorostral CP (DM and DL) strongly inhibited the catalepsy induced by systemic haloperidol (1 mg/kg, i.p.), and this effect lasted longer when the drug was injected into the DM than when it was injected into the DL. D(-)AP5 did not affect haloperidol-induced catalepsy when injected into the ventrorostral (VM and VL) or intermediate dorsal CP. D(-)AP5 injected into the DM, the region most sensitive to the anticataleptic effect of the drug, had no effect on basal levels of DA and its metabolites, 3,4-dihydroxyphenylacetic acid and homovanillic acid, or on the modification of these levels by haloperidol in either the DM or VM. These findings suggest that, while the catalepsy resulting from DA receptor blockade by haloperidol originates mainly from the VM, the expression of this phenomenon depends on an intact glutamatergic transmission within the dorsorostral CP. In the development of neuroleptic catalepsy, the mesencephalostriatal DAergic and corticostriatal glutamatergic pathways seem to be functionally linked through an indirect, rather than a direct, interaction.
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Affiliation(s)
- Y Yoshida
- Department of Psychiatry and Neurology, Asahikawa Medical College, Hokkaido, Japan
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Tucci S, Fernandez R, Baptista T, Murzi E, Hernandez L. Dopamine increase in the prefrontal cortex correlates with reversal of haloperidol-induced catalepsy in rats. Brain Res Bull 1994; 35:125-33. [PMID: 7953768 DOI: 10.1016/0361-9230(94)90092-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The mechanism by which forced swimming reverses, haloperidol-induced catalepsy was examined by measuring dopamine (DA) turnover in the nucleus accumbens-ventromedial caudate (NAC-C) and the prefrontal cortex (PFC) in rats. DA and its metabolites 3,4-dihydroxiphenylacetic acid (DOPAC) and homovanillic acid (HVA) were assessed by microdialysis and high pressure liquid chromatography with electrochemical detection (HPLC-ED) after systemic administration of a cataleptic dose of haloperidol (5 mg/kg) or saline. Haloperidol-induced catalepsy was temporarily suppressed by forced swimming. Haloperidol-treated rats showed an increase of DA, DOPAC, and HVA overflow in the PFC and the NAC-C. This increase was greater in the PFC of rats that were forced to swim. Rats that were not treated with haloperidol but were forced to swim (control group) showed an increase of DA, DOPAC, and HVA in the PFC but not in the NAC-C. Zero micrograms, 5 micrograms, 10 micrograms, and 20 micrograms of DA was bilaterally injected in the PFC of cataleptic rats to evaluate the hypothesis that DA in the PFC reverses catalepsy. Haloperidol-induced catalepsy was diminished by bilateral microinjections of 10 micrograms and 20 micrograms but not by 5 micrograms of DA in the PFC. The higher the dose of DA, the longer the decrease of catalepsy. These results suggest that an increase of DA turnover in the PFC might mediate temporal suppression of haloperidol-induced catalepsy. The mechanism by which the mesocortical DA system reduces catalepsy is discussed.
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Affiliation(s)
- S Tucci
- Laboratory of Behavioral Physiology, Los Andes University, Mérida, Venezuela
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12
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Ellenbroek BA. Treatment of schizophrenia: a clinical and preclinical evaluation of neuroleptic drugs. Pharmacol Ther 1993; 57:1-78. [PMID: 8099741 DOI: 10.1016/0163-7258(93)90036-d] [Citation(s) in RCA: 99] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Forty years after the first clinical report on the effectiveness of chlorpromazine in psychiatric patients, neuroleptic drugs are still the most widely used drugs in the treatment of schizophrenia. Indeed, there are no other drugs which have proven to be as effective in the treatment of this severe psychiatric disorder. Yet, there are still many unresolved problems relating to neuroleptic drugs. The present review gives a comprehensive overview of our knowledge (and our lack of knowledge) with respect to the clinical and preclinical effects of neuroleptic drugs and tries to integrate this knowledge in order to identify the neuronal mechanisms underlying the therapeutic and side effects of neuroleptic drugs.
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Affiliation(s)
- B A Ellenbroek
- Department of Psycho- and Neuropharmacology, Catholic University of Nijmegen, The Netherlands
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13
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Kolasiewicz W, Sauss C, Block F, Sontag KH. Behavioural effects after cholinergic stimulation of the reticular thalamic nucleus in rats. J Neural Transm (Vienna) 1992; 87:163-73. [PMID: 1581016 DOI: 10.1007/bf01245363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This study investigated the functional relationship between the experimentally induced changes in the activity of the cholinergic, muscarinergic system of the rostral area of the nucleus reticularis thalami (TRN) and the motor behaviour. The effect of direct stimulation of the rostral TRN by the cholinergic agonist carbachol on the behaviour of freely moving rats was observed. Unilateral injection of carbachol (0.2-3.2 micrograms/0.5 microliters) into the rostral TRN caused catalepsy which appeared rapidly and was short-lasting. Furthermore, it induced impairment of the performance on the rota rod. Both effects were dose-dependent. The cholinergic antagonist scopolamine (6.66 micrograms) coadministered with the equimolar dose of carbachol (3.2 micrograms) antagonized the effects of carbachol on both behavioural tests. The described effects seem to be cholinergic- and site-specific within the rostral TRN. The present results suggest that activation of the cholinergic, muscarinergic receptors in the rostral TRN modulate the motor function of rats.
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Affiliation(s)
- W Kolasiewicz
- Department of Neuro-Psychopharmacology, Polish Academy of Sciences, Krakow
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Elazar Z, Paz M. Similarities between the akinesia induced by carbachol microinjections into the pontine reticular formation and neuroleptic catalepsy. Life Sci 1992; 51:1373-80. [PMID: 1406055 DOI: 10.1016/0024-3205(92)90637-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
We reported previously that microinjections of carbachol directly into the pontine reticular formation of rats induced intense akinesia. In the present article we report results of tests for rigidity, righting, bracing and clinging which were conducted with the purpose to characterize behaviorally this type of akinesia. After injections of 5-15 micrograms/0.5 microliter of carbachol into the pontine reticular formation the rats were cataleptic, were not rigid when equilibrium was not challenged, had strong righting reflexes and strong bracing and clinging responses. This type of akinesia is different from the catatonia induced by systemic morphine (20 mg/kg IP), but similar to the catalepsy induced by systemic injections of haloperidol (5 mg/kg IP). It is thus suggested that the cataleptic state produced by topical carbachol in the pons is related to the dopaminergic mechanisms important for the cataleptic effect of the neuroleptic drugs.
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Affiliation(s)
- Z Elazar
- Department of Physiology and Pharmacology, Sackler School of Medicine, Tel Aviv University, Ramat Aviv, Israel
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15
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Elazar Z, Ganchrow D, Paz M, Rabinowitz R, Paz Z, Korczyn AD. Dopaminergic drugs influence the intensity of catalepsy induced by microinjections of carbachol into the reticular formation. Neurosci Lett 1990; 119:245-8. [PMID: 1980731 DOI: 10.1016/0304-3940(90)90844-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Carbachol microinjections into the mesencephalic and pontine reticular formation in rats induced intense and long-lasting catalepsy. Systemically administered haloperidol potentiated, while apomorphine and L-DOPA reduced the cataleptogenic effect of carbachol. These results indicate the existence of functional relations between the cholinergic cataleptogenic mechanism in the reticular formation and the dopaminergic system. They are interpreted in the light of known anatomical ascending and descending interconnections between the reticular formation and basal ganglia.
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Affiliation(s)
- Z Elazar
- Department of Physiology and Pharmacology, Sackler School of Medicine, Tel-Aviv University, Israel
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Elazar Z, Paz M. Catalepsy induced by carbachol microinjected into the pontine reticular formation of rats. Neurosci Lett 1990; 115:226-30. [PMID: 2234502 DOI: 10.1016/0304-3940(90)90459-m] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Rats were implanted stereotaxically with permanent guide tubes aimed at the pontine reticular formation. Carbachol was microinjected in the awake, freely moving rats. Catalepsy was evaluated with the horizontal bar test. Intense and long-lasting, dose-dependent catalepsy was observed following microinjections of 2-8 micrograms of carbachol. Pretreatment with intraperitoneally administered scopolamine significantly reduced the cataleptogenic effect of carbachol. These results show that the pontine reticular formation is part of the neuroanatomical substrate of catalepsy induced by cholinergic drugs.
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Affiliation(s)
- Z Elazar
- Department of Physiology and Pharmacology, Sackler School of Medicine, Tel-Aviv University, Israel
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Ossowska K, Karcz M, Wardas J, Wolfarth S. Striatal and nucleus accumbens D1/D2 dopamine receptors in neuroleptic catalepsy. Eur J Pharmacol 1990; 182:327-34. [PMID: 1975782 DOI: 10.1016/0014-2999(90)90291-d] [Citation(s) in RCA: 79] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Haloperidol (2.5-10 micrograms) injected bilaterally into the ventro-rostral striatum or into the nucleus accumbens induced dose-dependent catalepsy whereas its injection into the dorso-rostral striatum (2.5 micrograms) was ineffective. Similarly, the specific antagonist of D1 receptors, SCH 23390 (1-5 micrograms), injected into the ventro-rostral striatum or nucleus accumbens, as well as the specific antagonist of D2 receptors, sulpiride, injected into the ventro-rostral striatum (0.02-15 micrograms) or nucleus accumbens (1-15 micrograms), induced a dose-dependent catalepsy. Both drugs (SCH 23390 2 micrograms, sulpiride 0.5 micrograms) were ineffective when injected into the dorso-rostral striatum. Doses of sulpiride about 100 times lower than those injected into the nucleus accumbens were sufficient to evoke an equipotent catalepsy when injected into the ventro-rostral striatum. However, similar doses of haloperidol and SCH 23390, injected into the ventro-rostral striatum and nucleus accumbens, evoked a similar catalepsy. It is concluded that (1) the catalepsy induced by systemic administration of haloperidol seems to result from the action of this drug on both the ventro-rostral striatum and the nucleus accumbens, (2) both D1 and D2 dopamine receptors in the ventro-rostral striatum are involved in the cataleptogenic action of neuroleptics, and (3) in the nucleus accumbens, only D1 dopamine receptors seem to play an important role in this phenomenon.
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Affiliation(s)
- K Ossowska
- Department of Neuro-Psychopharmacology, Polish Academy of Sciences, Kraków, Poland
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Ossowska K, Wardas J, Golembiowska K, Wolfarth S. Lateral hypothalamus-zona incerta region as an output station for the catalepsy induced by the blockade of striatal D1 and D2 dopamine receptors. Brain Res 1990; 506:311-5. [PMID: 2154287 DOI: 10.1016/0006-8993(90)91269-m] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Our previous study reported that the blockade of GABAA receptors of the lateral hypothalamus-zona incerta region (LH-ZI) by local injections of bicuculline methiodide inhibited the haloperidol-induced catalepsy. The aim of the present study was to determine (1) whether the blockade of GABAA receptors of the LH-ZI may counteract the catalepsy evoked by SCH 23390 and by sulpiride, and (2) whether the GABAA receptors of the LH-ZI affect the function of the striatal dopaminergic system. Bicuculline methiodide (2.5 and 5 ng/side) injected bilaterally into the LH-ZI inhibited in a dose-dependent manner the catalepsy induced by SCH 23390 administered peripherally (0.2 mg/kg s.c.). SCH 23390 (2 micrograms/side) and sulpiride (1 microgram/side) injected bilaterally into the rostroventral part of the striatum induced potent catalepsy. The catalepsy induced by injection of SCH 23390 (2 micrograms) and sulpiride (1 microgram) into the striatum was inhibited by bicuculline methiodide (2.5 ng and 5 ng) injected into the LH-ZI. Neither bicuculline (5 ng/side) nor muscimol (50 ng/side) injected bilaterally into the LH-ZI changed the levels of dopamine and its intraneuronal metabolite, 3,4-dihydroxyphenyl-acetic acid, or the concentration of noradrenaline and 5-hydroxyindole-acetic acid measured in the striatum and nucleus accumbens by HPLC with an electrochemical detection. It is concluded that GABAA receptors of the LH-ZI are an output station for the catalepsy induced by the blockade of the striatal D2 and D1 dopamine receptors.
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Affiliation(s)
- K Ossowska
- Department of Neuropsychopharmacology, Polish Academy of Sciences, Krakow, Poland
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Al-Khatib IM, Fujiwara M, Ueki S. Relative importance of the dopaminergic system in haloperidol-catalepsy and the anticataleptic effect of antidepressants and methamphetamine in rats. Pharmacol Biochem Behav 1989; 33:93-7. [PMID: 2528750 DOI: 10.1016/0091-3057(89)90435-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The mechanisms involved in haloperidol (HPD)-catalepsy in rat and the effect of antidepressants and methamphetamine (MA) were studied. HPD-catalepsy, as measured by high bar test, lasted for 6-8 min. MA, imipramine (IMP), nomifensine (NOM) and mianserin (MIAN) reduced the duration of catalepsy on IP injection. Electrolytic lesion of the caudate-putamen (CP) and nucleus accumbens (ACC) extensively reduced HPD-catalepsy. Microinjection of MA and NOM into ACC had a similar effect. In the medial amygdala and CP, only MA displayed anticataleptic activity. Zimelidine did not reduce the duration of catalepsy. These results suggest that dopaminergic systems play a key role in mediating HPD-catalepsy and the anticataleptic activity of MA and NOM.
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Affiliation(s)
- I M Al-Khatib
- Department of Pharmacology, College of Medicine, University of Salahaddin, Arbil, Iraq
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Wardas J, Ossowska K, Wolfarth S. Evidence for the independent role of GABA synapses of the zona incerta-lateral hypothalamic region in haloperidol-induced catalepsy. Brain Res 1988; 462:378-82. [PMID: 3191399 DOI: 10.1016/0006-8993(88)90569-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Bicuculline (0.5-50 ng), injected bilaterally into the zona incerta-lateral hypothalamus (ZI-LH) of the rat, inhibited catalepsy evoked by haloperidol (1 mg/kg s.c.) in a dose-dependent manner. The same effect was obtained by injections of bicuculline directed towards the ventromedial thalamic nucleus (Vm), but then higher doses of the drug were necessary (10-50 ng). Muscimol (10-50 ng), injected into the ZI-LH, evoked a state of catalepsy almost identical to that of haloperidol. Bicuculline (50 ng) abolished the catalepsy evoked by muscimol (25 ng). Bicuculline injected into ZI-LH in doses of 0.5-2.5 ng did not change locomotor activity of rats as measured in photoresistor actometers, whereas it had a slightly stimulating effect at a dose of 5 ng. A comparison between the doses of bicuculline injected into the ZI-LH and Vm suggests that, irrespective of Vm synapses, GABA synapses of this region are involved in the mediation of haloperidol-induced catalepsy. A similar conclusion regarding the catalepsy and rigidity induced by morphine was drawn previously. It seems, therefore, that the catalepsy antagonism of bicuculline is independent of the action of the drug which promotes the locomotor stimulation.
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Affiliation(s)
- J Wardas
- Department of Neuro-Psychopharmacology, Institute of Pharmacology, Polish Academy of Sciences, Kraków
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Speiser Z, Amitzi-Sonder J, Gitter S, Cohen S. Behavioral differences in the developing rat following postnatal anoxia or postnatally injected AF-64A, a cholinergic neurotoxin. Behav Brain Res 1988; 30:89-94. [PMID: 3166708 DOI: 10.1016/0166-4328(88)90010-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Rat pups were submitted postnatally to one of two procedures: a 25-min exposure to 100% nitrogen or an i.c.v. bilateral injection of AF-64A, 2 nmol contained in 1-microliter saline. Throughout further development of either group, their performance in passive and active avoidance tests and in amphetamine-induced stereotype behavior was followed and compared. Both groups exhibited hyperactivity which persisted until 42 days of age in the anoxia group and beyond 120 days in the AF-64A group. Both groups were equally inferior to controls in the passive avoidance test, but only the anoxia group was inferior to controls in the active avoidance test. Amphetamine-induced stereotype behavior was much less pronounced in the anoxia group relative to AF-64A-treated rats or to controls. The results suggest that the lesion induced by the neurotoxin is more specific and less widespread than the one caused by anoxia.
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Affiliation(s)
- Z Speiser
- Department of Physiology and Pharmacology, Tel Aviv University, Sackler Faculty of Medicine, Israel
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Swart JA, Korf J. In vivo dopamine receptor assessment for clinical studies using positron emission tomography. Biochem Pharmacol 1987; 36:2241-50. [PMID: 2886125 DOI: 10.1016/0006-2952(87)90586-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Vrijmoed-de Vries MC, Tönissen H, Cools AR. The relationship between hindlimb disturbances, forelimb disturbances and catalepsy after increasing doses of muscimol injected into the striatal-pallidal complex. Psychopharmacology (Berl) 1987; 92:73-7. [PMID: 3110831 DOI: 10.1007/bf00215482] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
To establish the role of the GABA-ergic mechanism within the striatal-pallidal complex in hindlimb disturbances, forelimb disturbances and catalepsy and the relationship between these phenomena, the effects of the locally injected GABA agonist muscimol (0.5 microliter per side) were investigated in rats using several specific tests of catalepsy. The time required for retracting free-hanging hindlimbs was dose-dependently prolonged by 2-10 ng muscimol. The time required for releasing a rod that was clasped between the forelegs of otherwise free-hanging rats was dose-dependently prolonged by 5-10 ng muscimol. Likewise, the time required for retracting the free-hanging forelimbs was dose-dependently prolonged over the same dose range. Finally, the time during which standing rats kept their forelimbs on a block of 9 cm height (the dependent variable used in "classic" tests of catalepsy) was only prolonged at the highest dose (10 ng) of muscimol. The effects of the latter dose, which lasted at least 30 min, were inhibited by the GABA antagonist bicuculline (50 ng) for a minimum period of 5 min. The present data show that the GABA-ergic mechanisms within the striatal-pallidal complex are involved in hindlimb disturbances, forelimb disturbances and catalepsy, and that catalepsy requires a stronger dysfunctioning of these GABA-ergic mechanisms than do disturbances in hindlimbs and forelimbs.
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Yntema OP, Korf J. Transient supression by stress of haloperidol induced catalepsy by the activation of the adrenal medulla. Psychopharmacology (Berl) 1987; 91:131-4. [PMID: 2881316 DOI: 10.1007/bf00690942] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Rats were injected with haloperidol (0.5-1.0 mg X kg-1). When the catalepsy score was almost maximal (60 s, measured by the bar-test), the rats were handled, exposed to cold (3 degrees C) or immobilized. After each of these stress procedures the catalepsy was significantly reduced. Handling of adrenalectomized rats gave no such reduction. Infusion of adrenaline (10 nmol X kg-1, given in 15 s), in contrast to that of isoprenaline and phenylephrine (both the same concentration as adrenaline) also reduced the haloperidol induced catalepsy. These findings indicate that neuroleptic catalepsy in rats is not only mediated through central but also through peripheral mechanisms, e.g. by the adrenal medulla.
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Antelman SM, Kocan D, Edwards DJ, Knopf S, Perel JM, Stiller R. Behavioral effects of a single neuroleptic treatment grow with the passage of time. Brain Res 1986; 385:58-67. [PMID: 3768722 DOI: 10.1016/0006-8993(86)91547-7] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The principal finding of this manuscript is that the incidence of catalepsy observed in the rat after a single administration of low, clinically relevant doses of the dopamine receptor antagonists and antipsychotic agents, haloperidol and fluphenazine hydrochloride, grows over time such that one re-exposure to the same compound up to 8 weeks later results in a marked enhancement (i.e. sensitization) of this response. This phenomenon appears to be independent of pharmacokinetic or conditioning factors as well as alterations in dopamine or dihydroxyphenylacetic acid. It suggests that the antidopaminergic influence of acute exposure to a neuroleptic not only persists but continues to sensitize for extraordinary periods of time even after the drug is no longer detectable in the system. Our findings may hold the key to understanding the apparent paradox that although neuroleptics presumably induce their therapeutic actions in disorders such as Tourette syndrome and schizophrenia as well as their parkinsonian effects by blocking dopamine receptors, this antagonism occurs immediately while behavioral changes often require weeks for maximal development.
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Abstract
A new chemical, 2-[4-[4-(7,9-dioxo-6-thia-8-azaspiro[4,4] nonan-8-yl)-butyl]-1-piperazinyl]pyridine-3-carbonitrile hydrochloride (MJ-13980-1), referred to in this report as MJ-13980, displaced in vitro [3H]spiperone binding, elevated serum prolactin concentrations, and decreased apomorphine-induced stereotyped behavior in male rats. These indicated that MJ-13980 acts as a dopamine (DA) receptor antagonist. However, MJ-13980 (10 mg/kg) elicited only a very small amount of cataleptic behavior and antagonized that produced by haloperidol (HAL), a classical DA receptor blocker and potent inducer of cataleptic behavior. At a lower dose, MJ-13980 (1.0 mg/kg) produced no cataleptic behavior but against decreased that produced by HAL. These results suggest that the antagonistic interaction of MJ-13980 at central DA receptors is not associated with the production of cataleptic behavior.
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Jackson EA, Kelly PH, Schultz L. Effects of serotonergic activity in nucleus accumbens septi on drug-induced circling. Neuropharmacology 1985; 24:721-7. [PMID: 3939326 DOI: 10.1016/0028-3908(85)90005-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The effects of injections of 5-hydroxytryptamine (5-HT) into the nucleus accumbens and lesions of the nucleus accumbens induced by 5,7-dihydroxytryptamine (5,7-DHT) on drug-induced circling were investigated in rats with unilateral nigrostriatal lesions induced by 6-hydroxydopamine (6-OHDA). Injections of 5-HT (60-120 micrograms in 1 microliter; 1 microliter/min) into the nucleus accumbens caused a significant decrease in the circling response to 5.0 mg/kg of d-amphetamine (s.c.). The distribution of radioactivity after intracerebral injections of [3H]5-HT using these parameters showed that although much of the injected material was retained in the nucleus accumbens there was also considerable spread to the frontal cortex. However, in further behavioural experiments, using an injection procedure (0.5 microliter; 0.11 microliter/min) which caused much greater retention of injected material in the nucleus accumbens, with minimal spread to the frontal cortex, the ability of 5-HT injected into the accumbens to block amphetamine-induced circling was not diminished. Moreover, injections of 5-HT into the frontal cortex did not have any effect on amphetamine-induced circling. Lesions of the nucleus accumbens induced by 5,7-DHT caused a significant enhancement of the contralateral circling response to 1.0 mg/kg of apomorphine and a similar but non-significant tendency to increase the circling responses to several other doses of apomorphine and amphetamine. The results provide evidence that serotonergic mechanisms in the nucleus accumbens inhibit circling behaviour generated by unilateral activation of nigrostriatal dopaminergic mechanisms.
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