Results 51 to 60 of about 331,716 (264)
Simulation of nerve fiber based on anti-resonant reflecting optical waveguide
Scientific Reports, 2022 Light and optical techniques are widely used for the diagnosis and treatment of neurological diseases as advanced methods. Understanding the optical properties of nervous tissue and nerve cells is vital.
Marzieh Omidi +2 more
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Regulation of developing myelin sheath elongation by oligodendrocyte calcium transients in vivo
Nature Neuroscience, 2017 How action potentials regulate myelination by oligodendrocytes is uncertain. We show that neuronal activity raises [Ca2+]i in developing oligodendrocytes in vivo and that myelin sheath elongation is promoted by a high frequency of [Ca2+]i transients and ...
A. Krasnow +4 more
semanticscholar +1 more source
Schwann cells and trigeminal neuralgia
Molecular Pain, 2020 Schwann cells are components of the peripheral nerve myelin sheath, which supports and nourishes axons. Upon injury of the trigeminal nerve, Schwann cells are activated and cause trigeminal neuralgia by engulfing the myelin sheath and secreting various ...
Jia-Yi Liao +3 more
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Ca2+ activity signatures of myelin sheath formation and growth in vivo
Nature Neuroscience, 2017 During myelination, individual oligodendrocytes initially over-produce short myelin sheaths, which are either retracted or stabilized. By live-imaging oligodendrocyte Ca2+ activity in vivo, we find that high-amplitude, long-duration Ca2+ transients in ...
Marion Baraban, S. Koudelka, D. Lyons
semanticscholar +1 more source
Myelin-like sheaths in copepod axons [PDF]
Nature, 1999 Copepods, the small planktonic crustaceans that are the most abundant metazoans in the oceans, are so successful partly because they have an escape response that accelerates them to 200 body lengths per second within milliseconds1,3. We find that nerve fibres of many copepods seem to be designed for rapid signalling.
A D, Davis +3 more
openaire +2 more sources
Early myelin breakdown following sural nerve crush: a freeze-fracture study
Brazilian Journal of Medical and Biological Research, 2000 In this study we describe the early changes of the myelin sheath following surgical nerve crush. We used the freeze-fracture technique to better evaluate myelin alterations during an early stage of Wallerian degeneration.
A.M.B. Martinez, S. Canavarro
doaj +1 more source
Frontiers in Psychiatry, 2018 White matter and myelin sheath integrity are disrupted in schizophrenia, and non-invasive magnetic brain stimulation targeting these tracts is a promising new therapeutic approach.
Zuoli Sun +6 more
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Overview of myelin, major myelin lipids, and myelin-associated proteins
Frontiers in Chemistry, 2023 Myelin is a modified cell membrane that forms a multilayer sheath around the axon. It retains the main characteristics of biological membranes, such as lipid bilayer, but differs from them in several important respects.
A. Kister, I. Kister
semanticscholar +1 more source
Microtubules, Myelin Sheaths, and Altered Behavior [PDF]
eneuro, 2021 Mice are skttish creatures that innately hide from perceived threats by staying out of open areas, freezing to avoid predators, or hiding in dark spaces when an adverse stimulus is sensed. However, after inducing a global TPPP (tubulin polymerization promoting protein) gene knock-out (KO), which results in reduced myelin length and thickness (Fu et al.,
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The polarity protein Scribble regulates myelination and remyelination in the central nervous system.
PLoS Biology, 2015 The development and regeneration of myelin by oligodendrocytes, the myelin-forming cells of the central nervous system (CNS), requires profound changes in cell shape that lead to myelin sheath initiation and formation.
Andrew A Jarjour +7 more
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