Dystonia and the pedunculopontine nucleus: Current evidences and potential mechanisms

Bibliographic Details
Title: Dystonia and the pedunculopontine nucleus: Current evidences and potential mechanisms
Authors: Jun-hui Su, Yao-wen Hu, Yi Yang, Ruo-yu Li, Fei Teng, Li-xi Li, Ling-jing Jin
Source: Frontiers in Neurology, Vol 13 (2022)
Publisher Information: Frontiers Media S.A., 2022.
Publication Year: 2022
Collection: LCC:Neurology. Diseases of the nervous system
Subject Terms: pedunculopontine nucleus, dystonia, neuropathology, muscle tone, deep brain stimulation, Neurology. Diseases of the nervous system, RC346-429
More Details: Being a major component of the midbrain locomotion region, the pedunculopontine nucleus (PPN) is known to have various connections with the basal ganglia, the cerebral cortex, thalamus, and motor regions of the brainstem and spinal cord. Functionally, the PPN is associated with muscle tone control and locomotion modulation, including motor initiation, rhythm and speed. In addition to its motor functions, the PPN also contribute to level of arousal, attention, memory and learning. Recent studies have revealed neuropathologic deficits in the PPN in both patients and animal models of dystonia, and deep brain stimulation of the PPN also showed alleviation of axial dystonia in patients of Parkinson's disease. These findings indicate that the PPN might play an important role in the development of dystonia. Moreover, with increasing preclinical evidences showed presence of dystonia-like behaviors, muscle tone changes, impaired cognitive functions and sleep following lesion or neuromodulation of the PPN, it is assumed that the pathological changes of the PPN might contribute to both motor and non-motor manifestations of dystonia. In this review, we aim to summarize the involvement of the PPN in dystonia based on the current preclinical and clinical evidences. Moreover, potential mechanisms for its contributions to the manifestation of dystonia is also discussed base on the dystonia-related basal ganglia-cerebello-thalamo-cortical circuit, providing fundamental insight into the targeting of the PPN for the treatment of dystonia in the future.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1664-2295
Relation: https://www.frontiersin.org/articles/10.3389/fneur.2022.1065163/full; https://doaj.org/toc/1664-2295
DOI: 10.3389/fneur.2022.1065163
Access URL: https://doaj.org/article/e22ad728cdf04d4c90f6f9bfb707636f
Accession Number: edsdoj.22ad728cdf04d4c90f6f9bfb707636f
Database: Directory of Open Access Journals
More Details
ISSN:16642295
DOI:10.3389/fneur.2022.1065163
Published in:Frontiers in Neurology
Language:English