A physical perspective to understand myelin. II. The physical origin of myelin development

Liu, Yonghong; Zhang, Yapeng; Yue, Wenji; Zhu, Rixiang; Guo, Tianruo; Liu, Fenglin; Huang, Yubin; Wu, Tianzhun; Wang, Hao

doi:10.48550/arxiv.2111.13689

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“…Thus, this theory indicates the potential correlation between the g-ratio and the E-field on the inner tongue. In our next study, a more detailed model is proposed to explain the g-ratio phenomenon (Liu et al, 2021).…”

Section: A Possible Explanation For G-ratiomentioning

confidence: 99%

“…Moreover, our model may also explain the direct cause of some degenerative neural diseases, such as Parkinson's disease, as abnormal neural activities. We will make a more detailed discussion about this part in our next work (Liu et al, 2021(Liu et al, ). 10.3389/fnins.2022 The limitation of our model…”

Section: The Relationship Between Neural Activity and Myelin Developmentmentioning

confidence: 99%

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A physical perspective to understand myelin. I. A physical answer to Peter’s quadrant mystery

Liu

Yue²,

Yu³

et al. 2022

Front. Neurosci.

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In the development of oligodendrocytes in the central nervous systems, the inner and outer tongue of the myelin sheath tend to be located within the same quadrant, which was named as Peters quadrant mystery. In this study, we conduct in silico investigations to explore the possible mechanisms underlying the Peters quadrant mystery. A biophysically detailed model of oligodendrocytes was used to simulate the effect of the actional potential-induced electric field across the myelin sheath. Our simulation suggests that the paranodal channel connecting the inner and outer tongue forms a low impedance route, inducing two high-current zones at the area around the inner and outer tongue. When the inner tongue and outer tongue are located within the same quadrant, the interaction of these two high-current-zones will induce a maximum amplitude and a polarity reverse of the voltage upon the inner tongue, resulting in the same quadrant phenomenon. This model indicates that the growth of myelin follows a simple principle: an external negative or positive E-field can promote or inhibit the growth of the inner tongue, respectively.

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Section: A Possible Explanation For G-ratiomentioning

confidence: 99%

Section: The Relationship Between Neural Activity and Myelin Developmentmentioning

confidence: 99%

A physical perspective to understand myelin. I. A physical answer to Peter’s quadrant mystery

Liu

Yue²,

Yu³

et al. 2022

Front. Neurosci.

Self Cite

View full text Add to dashboard Cite

show abstract

A physical perspective to understand myelin. II. The physical origin of myelin development

Cited by 1 publication

References 0 publications

A physical perspective to understand myelin. I. A physical answer to Peter’s quadrant mystery

A physical perspective to understand myelin. I. A physical answer to Peter’s quadrant mystery

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