Results 81 to 90 of about 113,844 (214)

Morphometric parameters of the optic disc and peripapillary retina in children in cases of congenital pathology

Российский офтальмологический журнал, 2022
Purpose: to study the nature of changes in morphological parameters of the children’s optic disc and peripapillary retina in cases of congenital pathology.Material and methods.
T. V. Sudovskaya, L. V. Kogoleva
doaj   +1 more source

A Jones matrix formalism for simulating three-dimensional polarized light imaging of brain tissue [PDF]

Menzel M, Michielsen K, De Raedt H, Reckfort J, Amunts K, Axer M. 2015 A Jones matrix formalism for simulating three-dimensional polarized light imaging of brain tissue. J. R. Soc. Interface 12: 20150734, 2015
The neuroimaging technique three-dimensional polarized light imaging (3D-PLI) provides a high-resolution reconstruction of nerve fibres in human post-mortem brains. The orientations of the fibres are derived from birefringence measurements of histological brain sections assuming that the nerve fibres - consisting of an axon and a surrounding myelin ...
arxiv   +1 more source

Setting reference level in the human safety guidelines via nerve activation intercomparison at IF [PDF]

, 2019
International guidelines/standards have been published for human protection from electromagnetic field exposure. The research in the intermediate frequencies (IF: 300 Hz-10 MHz) is scattered unlike for other frequencies, and thus the limit prescribed in ...
Gomez-Tames, Jose, Hirata, Akimasa, Joseph, Wout, Martens, Luc, Rashed, Essam, Tanghe, Emmeric, Tarnaud, Thomas, Van de Steene, Tom   +7 more
core   +2 more sources

Density of sodium channels in mammalian myelinated nerve fibers and nature of the axonal membrane under the myelin sheath.

Proceedings of the National Academy of Sciences of the United States of America, 1977
The density of sodium channels in mammalian myelinated fibers has been estimated from measurements of the binding of [3H]saxitoxin to rabbit sciatic nerve. Binding both to intact and to homogenized nerve consists of a linear, nonspecific, component and a
J. M. Ritchie, R. Rogart
semanticscholar   +1 more source

Oligodendrogenesis in Evolution, Development and Adulthood

Glia, EarlyView.
Oligodendrocytes and myelin took shape in jawed vertebrates. During development, OPCs are originated from NSCs and then undergo differentiation into mature oligodendrocytes that supply myelin. OPCs persist in the adult CNS and continue to produce oligodendrocytes and myelin. Adaptive myelination, which fine‐tunes neural circuits in response to neuronal
Hao Hu, Tianhao Gao, Jingwei Zhao, Huiliang Li   +3 more
wiley   +1 more source

Morphometric study of the nerve fibers of the oculomotor nerve in dog [PDF]

, 2007
The intracranial portion of the right oculomotor nerves was extracted from six adult German Shepherd dogs. The nerves were studied using light and electron microscopy.
Agüera Carmona, Eduardo, Diz Plaza, A.M., García-Monterde, J., Martínez Galisteo, A., Miró Rodríguez, F., Morales López, J.L., Vivo Rodríguez, J.   +6 more
core  

Myelin Lipid Composition in the Central Nervous System Is Regionally Distinct and Requires Mechanistic Target of Rapamycin Signaling

Glia, EarlyView.
Brain oligodendrocytes have lower rates of cholesterol synthesis and higher rates of lipoprotein uptake than spinal cord oligodendrocytes. Myelin lipid content is higher in CNS regions with larger average axon diameter. Brain and spinal cord myelin cholesterol content is innately different, while myelin fatty acid content can be modulated by fiber ...
Marie L. Mather, Angelina V. Evangelou, Jennifer N. Bourne, Wendy B. Macklin, Teresa L. Wood   +4 more
wiley   +1 more source

Selective Fiber Degeneration in the Peripheral Nerve of a Patient With Severe Complex Regional Pain Syndrome

Frontiers in Neuroscience, 2018
Aims: Complex regional pain syndrome (CRPS) is characterized by chronic debilitating pain disproportional to the inciting event and accompanied by motor, sensory, and autonomic disturbances. The pathophysiology of CRPS remains elusive.
Adrien Yvon, Adrien Yvon, Alessandro Faroni, Adam J. Reid, Adam J. Reid, Vivien C. Lees   +5 more
doaj   +1 more source

AxonDeepSeg: automatic axon and myelin segmentation from microscopy data using convolutional neural networks [PDF]

, 2017
Segmentation of axon and myelin from microscopy images of the nervous system provides useful quantitative information about the tissue microstructure, such as axon density and myelin thickness. This could be used for instance to document cell morphometry
Antonsanti, Pierre-Louis, Cohen-Adad, Julien, Herman, Victor, Perone, Christian Samuel, Wabartha, Maxime, Zaimi, Aldo   +5 more
core   +3 more sources

Research progress on the use of the optical coherence tomography system for the diagnosis and treatment of central nervous system tumors

Ibrain, Volume 11, Issue 1, Page 3-18, Spring 2025.
With the advantages of high‐resolution imaging, efficient image acquisition, intraoperative real‐time detection, and radiation‐free and noninvasive characteristics, optical coherence tomography (OCT) provides accurate diagnosis and effective intraoperative guidance for the minimally invasive diagnosis and treatment of central nervous system (CNS ...
Jiuhong Li, Ziba Ayi, Gonggong Lu, Haibo Rao, Feilong Yang, Jing Li, Jiachen Sun, Junlin Lu, Xulin Hu, Si Zhang, Xuhui Hui   +10 more
wiley   +1 more source