Cited by 14Neurological disorders and treatmentsNeurotransmitter Receptor Influence on BehaviorNeuroscience and Neuropharmacology Research

Lesion of the Cerebellar Noradrenergic Innervation Enhances the Harmaline-Induced Tremor in Rats

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Kolasiewicz, Wacław, Kuter, Katarzyna, Nowak, Przemysław, Pastuszka, Agnieszka, Ossowska, Krystyna·2011·The Cerebellum

Abstract

Abnormal synchronous activation of the glutamatergic olivo-cerebellar pathway has been suggested to be crucial for the harmaline-induced tremor. The cerebellum receives two catecholaminergic pathways: the dopaminergic pathway arising from the ventral tegmental area/substantia nigra pars compacta, and the noradrenergic one from the locus coeruleus. The aim of the present study was to examine a contribution of the cerebellar catecholaminergic innervations to the harmaline-induced tremor in rats. Rats were injected bilaterally into the cerebellar vermis with 6-hydroxydopamine (6-OHDA; 8 μg/0.5 μl) either alone or this treatment was preceded (30 min earlier) by desipramine (15 mg/kg ip). Harmaline was administered to animals in doses of 7.5 or 15 mg/kg ip. Tremor of forelimbs was measured as a number of episodes during a 90-min observation. Rats were killed by decapitation 30 or 120 min after harmaline treatment. The levels of dopamine, noradrenaline, serotonin, and their metabolites were measured by HPLC in the cerebellum, substantia nigra, caudate-putamen, and frontal cortex. 6-OHDA injected alone enhanced the harmaline-induced tremor. Furthermore, it decreased the noradrenaline level by ca. 40-80% in the cerebellum and increased the levels of serotonin and 5-HIAA in the caudate-putamen and frontal cortex in untreated and/or harmaline-treated animals. When 6-OHDA treatment was preceded by desipramine, it decreased dopaminergic transmission in some regions of the cerebellum while inducing its compensatory activation in others. The latter lesion did not markedly influence the tremor induced by harmaline. The present study indicates that noradrenergic innervation of the cerebellum interacts with cerebral serotonergic systems and plays an inhibitory role in the harmaline-induced tremor.

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  • The cerebellum receives a dopaminergic pathway from the ventral tegmental area/substantia nigra pars compacta.

    “The cerebellum receives a dopaminergic pathway from the ventral tegmental area/substantia nigra pars compacta [178].”
  • Activation of the serotonergic system in inferior olive and cerebellum can enhance harmaline-induced tremor in animals, previously thought only attributable to olivocerebellar glutamate release acting on NMDAR and AMPAR.

    “There is evidence that activation of the serotonergic system in the inferior olive and cerebellum can contribute to the enhancement of harmaline-induced tremor in animals, once thought to only be attributable to olivocerebellar release of glutamate acting on NMDAR and AMPAR [178].”

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  1. [31]Paxinos G Watson C The rat brain 1998 4 New York Academic Press

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Authors
Kolasiewicz, W., Kuter, K., Nowak, P., Pastuszka, A., & Ossowska, K.
Affiliations
  • Maj Institute of Pharmacology (PL)
  • Medical University of Silesia (PL)
Corresponding author
Ossowska, Krystyna
Venue
The Cerebellum
Published
2011-01-29
Volume
10
Issue
2
Pages
267-280
ISSN
  • 1473-4222 (ISSN-L)
  • 1473-4230
OpenAlex
W1985593029
Cited by
14
References
63
Citations by year
2025: 1 · 2023: 3 · 2019: 1 · 2016: 1 · 2014: 3 · 2013: 2 · 2012: 3
FWCI
1.62
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • The Cerebellum (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
Funders
Instytut Farmakologii im. Jerzego Maja Polskiej Akademii Nauk
Topics
  • Health Sciences › Medicine › Neurology › Neurological disorders and treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
harmaline-induced tremor, locus coeruleus, 6-hydroxydopamine lesion, desipramine, serotonin, 5-hydroxyindoleacetic acid, dopamine signaling, cerebellar vermis, tremor suppression, catecholaminergic system
MeSH terms
Central Nervous System Stimulants, Animals, Brain Chemistry, Cerebellum, Chromatography, High Pressure Liquid, Dopamine, Harmaline, Male, Neural Pathways, Synaptic Transmission, Norepinephrine, Serotonin, Tremor, Oxidopamine, Rats, Wistar, Adrenergic Agents, Rats

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