Regulatory effects of Ningdong granule on dopaminergic and serotonergic neurotransmission in a rat model of Tourette syndrome assessed by PET.
Mol Med Rep
; 20(1): 191-197, 2019 Jul.
Article
en En
| MEDLINE
| ID: mdl-31115527
ABSTRACT
Dysfunctions in dopamine (DA) and serotonin (5HT) metabolism have been widely implicated in Tourette syndrome (TS); however, the exact nature of these dysfunctions remains unclear. The objective of the present study was to investigate the variation in DA and 5HT metabolism in a rat model of TS, and to evaluate the therapeutic effect of Ningdong granule (NDG), a traditional Chinese medicine (TCM) preparation used specifically for the treatment of TS. Rats were treated with 3,3'iminodipropionitrile for 7 days to induce the model of TS, and were then intragastrically administered NDG each day. After 8 weeks of treatment, micropositron emission tomography was used to measure the binding of DA D2 receptors (D2Rs), DA transporters (DATs), 5HT2A receptors (5HT2ARs) and 5HT transporters (SERTs) in brain regions of interest. The results indicated that NDG could significantly reduce the typical characteristics of TS in the rat model. Decreased D2R binding and increased DAT binding were detected in the striatum compared with the binding activities in untreated rats. The density of 5HT2AR was also significantly increased in the striatum following NDG treatment; however, SERT levels were decreased in certain brain regions, including the striatum, cortex, nucleus accumbens and amygdala. Taken together, the current results demonstrated that NDG may be effective in treating patients with TS.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Medicamentos Herbarios Chinos
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Síndrome de Tourette
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Neuronas Dopaminérgicas
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Neuronas Serotoninérgicas
Tipo de estudio:
Diagnostic_studies
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Prognostic_studies
Límite:
Animals
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Humans
Idioma:
En
Revista:
Mol Med Rep
Año:
2019
Tipo del documento:
Article