Results 1 to 10 of about 96,245 (184)
Current Biology, 2016 Myelin is a key evolutionary acquisition that underlay the development of the large, complex nervous systems of all hinged-jaw vertebrates. By promoting rapid, efficient nerve conduction, myelination also made possible the development of the large body size of these vertebrates.
Salzer, J.L., Zalc, B.
openaire +4 more sources
Is Myelin a Mitochondrion? [PDF]
Journal of Cerebral Blood Flow & Metabolism, 2012 It has been hypothesized that myelin acts like a mitochondrion, generating ATP across the membranes of its sheath. By calculating the proton motive force across the myelin membrane based on known values for the pH and membrane potential of the oligodendrocyte, we find that insufficient energy could be harvested from proton flow across the myelin ...
Julia J. Harris, David Attwell
openaire +3 more sources
Glia, 2017 AbstractMyelinating cells surround axons to accelerate the propagation of action potentials, to support axonal health, and to refine neural circuits. Myelination is metabolically demanding and, consistent with this notion, mTORC1—a signaling hub coordinating cell metabolism—has been implicated as a key signal for myelination.
Gianluca Figlia +2 more
openaire +4 more sources
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. In this review, we focus on aspects of myelin composition that are peculiar to this structure and differentiate it from the more ...
Alexander Kister, Ilya Kister
openaire +3 more sources
Journal of Cell Science, 2014 ABSTRACTThe myelin sheath is a plasma membrane extension that is laid down in regularly spaced segments along axons of the nervous system. This process involves extensive changes in oligodendrocyte cell shape and membrane architecture. In this Cell Science at a Glance article and accompanying poster, we provide a model of how myelin of the central ...
Snaidero, Nicolas, Simons, Mikael
openaire +4 more sources
Myelin lipid metabolism and its role in myelination and myelin maintenance
The Innovation, 2023 Myelin is a specialized cell membrane indispensable for rapid nerve conduction. The high abundance of membrane lipids is one of myelin's salient features that contribute to its unique role as an insulator that electrically isolates nerve fibers across their myelinated surface.
Joseph A. Barnes-Vélez +2 more
openaire +3 more sources
Polarization and Myelination in Myelinating Glia [PDF]
ISRN Neurology, 2012 Myelinating glia, oligodendrocytes in central nervous system and Schwann cells in peripheral nervous system, form myelin sheath, a multilayered membrane system around axons enabling salutatory nerve impulse conduction and maintaining axonal integrity.
openaire +2 more sources
Polyphosphoinositides in myelin [PDF]
Biochemical Journal, 1965 1. On fractionation of guinea-pig forebrain homogenates by differential and gradient-density centrifugation most of the polyphosphoinositides were recovered in the myelin-rich particles. 2. The phospholipids of pure preparations of myelin contained di- and tri-phosphoinositide in proportions 2-3 times greater than in the whole-brain phospholipids.
R. M. C. Dawson, Joseph Eichberg
openaire +3 more sources
Exogenous lipids in myelination and myelination.
The Kaohsiung journal of medical sciences, 1997 Myelinogenesis is a scheduled process that depends on both the intrinsic properties of the cell and extracellular signals. In rat brain, myelin development is an essentially postnatal event and environmental interferences could affect myelin synthesis. Nutrition plays an important role, since severe postnatal malnutrition and essential fatty acid (EFA)
Serafina Salvati, Di Biase A
openaire +3 more sources
Switching modes of myelination [PDF]
Nature Reviews Neuroscience, 2014 A new study shows that myelination may proceed in activity-dependent and -independent manners and that activity-dependent myelination is linked to neuregulin-induced signalling in oligodendrocytes, which makes these cells more sensitive to glutamate release.
openaire +3 more sources