Nerve Fibers, Myelinated - Ultrastructure
Research News and Information

Sunday, November 22, 2009

Conduction block and glial injury induced in developing central white matter by glycine, GABA, noradrenalin, or nicotine, studied in isolated neonatal rat optic nerve.

13 Aug 2009 The damaging effects of excessive glutamate receptor activation have been highlighted recently during injury in developing central white matter. We have examined the effects of acute exposure to four other neurotransmitters that have known actions ... Read more...

GDNF-enhanced axonal regeneration and myelination following spinal cord injury is mediated by primary effects on neurons.

13 Aug 2009 We previously demonstrated that coadministration of glial cell line-derived neurotrophic factor (GDNF) with grafts of Schwann cells (SCs) enhanced axonal regeneration and remyelination following spinal cord injury (SCI). However, the cellular target ... Read more...

Beta1 integrins are required for normal CNS myelination and promote AKT-dependent myelin outgrowth.

30 Jul 2009 Oligodendrocytes in the central nervous system (CNS) produce myelin sheaths that insulate axons to ensure fast propagation of action potentials. beta1 integrins regulate the myelination of peripheral nerves, but their function during the myelination ... Read more...

Latest indexed articles for 'Nerve Fibers, Myelinated - Ultrastructure'

These are the very latest articles for this heading:

• Conduction block and glial injury induced in developing central white matter by glycine, GABA, noradrenalin, or nicotine, studied in isolated neonatal rat optic nerve. 13 Aug 2009
• GDNF-enhanced axonal regeneration and myelination following spinal cord injury is mediated by primary effects on neurons. 13 Aug 2009
• Beta1 integrins are required for normal CNS myelination and promote AKT-dependent myelin outgrowth. 30 Jul 2009
• Statistical models of sets of curves and surfaces based on currents. 15 Jul 2009
• Does post-lesional subcortical plasticity exist in the human brain? 14 Jul 2009
• T1 mapping using spoiled FLASH-EPI hybrid sequences and varying flip angles. 29 Jun 2009
• Mice with altered myelin proteolipid protein gene expression display cognitive deficits accompanied by abnormal neuron-glia interactions and decreased conduction velocities. 29 Jun 2009
• How the optic nerve allocates space, energy capacity, and information. 15 Jun 2009
• Direct quantitative comparison between cross-relaxation imaging and diffusion tensor imaging of the human brain at 3.0 T. 11 Jun 2009
• Optimal real-time Q-ball imaging using regularized Kalman filtering with incremental orientation sets. 10 Jun 2009
• Tractography-based priors for dynamic causal models. 8 Jun 2009
• Gaussian mixture model-based segmentation of MR images taken from premature infant brains. 8 Jun 2009
• The myelin protein MAL affects peripheral nerve myelination: a new player influencing p75 neurotrophin receptor expression. 6 Jun 2009
• Phrenic nerve diabetic neuropathy in rats: unmyelinated fibers morphometry. 30 May 2009
• Spatial normalization of the fiber orientation distribution based on high angular resolution diffusion imaging data. 30 May 2009
• The B-matrix must be rotated when correcting for subject motion in DTI data. 30 May 2009
• Processed allografts and type I collagen conduits for repair of peripheral nerve gaps. 30 May 2009
• Assessing the effects of age on long white matter tracts using diffusion tensor tractography. 30 May 2009
• Target-specific contrast agents for magnetic resonance microscopy. 30 May 2009
• Evaluation of bayesian tensor estimation using tensor coherence. 26 May 2009

See a longer list of these articles.

Technical information about 'Nerve Fibers, Myelinated'

Definition: A class of nerve fibers as defined by their structure, specifically the nerve sheath arrangement. The AXONS of the myelinated nerve fibers are completely encased in a MYELIN SHEATH. They are fibers of relatively large and varied diameters. Their NEURAL CONDUCTION rates are faster than those of the unmyelinated nerve fibers (NERVE FIBERS, UNMYELINATED). Myelinated nerve fibers are present in somatic and autonomic nerves.

Descriptor UI: D009413

Alternative terms: Nerve Fibers, Myelinated; Fiber, Myelinated Nerve; Fibers, Myelinated Nerve; Myelinated Nerve Fiber; Myelinated Nerve Fibers; Nerve Fiber, Myelinated; B Fibers; B Fiber; Fiber, B; Fibers, B; A Fibers; A Fiber; Fiber, A; Fibers, A;

Allowable Qualifiers: classification; drug effects; enzymology; immunology; metabolism; microbiology; parasitology; pathology; physiology; radiation effects; radiography; radionuclide imaging; secretion; transplantation; ultrastructure; ultrasonography; chemistry; virology;

Tree Number: A08.663.542.512; A11.671.514;

History Note: 1974 (1972); for B FIBERS use AUTONOMIC FIBERS, PREGANGLIONIC 1976-2002