Regulatory effects of Ningdong granule on dopaminergic and serotonergic neurotransmission in a rat model of Tourette syndrome assessed by PET

  • Authors:
    • Yuan Wang
    • Anyuan Li
  • View Affiliations

  • Published online on: May 15, 2019     https://doi.org/10.3892/mmr.2019.10243
  • Pages: 191-197
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Abstract

Dysfunctions in dopamine (DA) and serotonin (5‑HT) 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 5‑HT 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, micro‑positron emission tomography was used to measure the binding of DA D2 receptors (D2Rs), DA transporters (DATs), 5‑HT2A receptors (5‑HT2ARs) and 5‑HT 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 5‑HT2AR 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.
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July-2019
Volume 20 Issue 1

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Wang Y and Wang Y: Regulatory effects of Ningdong granule on dopaminergic and serotonergic neurotransmission in a rat model of Tourette syndrome assessed by PET. Mol Med Rep 20: 191-197, 2019
APA
Wang, Y., & Wang, Y. (2019). Regulatory effects of Ningdong granule on dopaminergic and serotonergic neurotransmission in a rat model of Tourette syndrome assessed by PET. Molecular Medicine Reports, 20, 191-197. https://doi.org/10.3892/mmr.2019.10243
MLA
Wang, Y., Li, A."Regulatory effects of Ningdong granule on dopaminergic and serotonergic neurotransmission in a rat model of Tourette syndrome assessed by PET". Molecular Medicine Reports 20.1 (2019): 191-197.
Chicago
Wang, Y., Li, A."Regulatory effects of Ningdong granule on dopaminergic and serotonergic neurotransmission in a rat model of Tourette syndrome assessed by PET". Molecular Medicine Reports 20, no. 1 (2019): 191-197. https://doi.org/10.3892/mmr.2019.10243