Results 11 to 20 of about 119,103 (273)
Optical Modeling and Characterization of Demyelinated Nerve Using Graphene-Based Photonic Structure
IEEE Access, 2022 The myelin sheath, as an insulation layer in nerve cells, plays an essential role in neural communication and signal conduction. Loss of myelin, referred to as demyelination, is associated with many mental disorders. Detecting the tiny demyelinated parts
Amir Maghoul +5 more
doaj +1 more source
Enlargement of the Nerve Fibers of Silenced Lumbosacral Motoneurons in Cats
Biomedicines, 2022 Whether neuromuscular activity influences the size of motor nerves is controversial. All neuromuscular activity in cat hindlimbs was eliminated by spinal cord isolation (SCI), namely, spinal cord transection above and below the medial gastrocnemius (MG ...
Tessa Gordon +2 more
doaj +1 more source
Effects of nerve bundle geometry on neurotrauma evaluation [PDF]
International Journal for Numerical Methods in Biomedical
Engineering, 34 (2018) e3118, 2020 Objective: We confirm that alteration of a neuron structure can induce abnormalities in signal propagation for nervous systems, as observed in brain damage. Here, we investigate the effects of geometrical changes and damage of a neuron structure in 2 scaled nerve bundle models, made of myelinated nerve fibers or unmyelinated nerve fibers. Methods: We
arxiv +1 more source
Scattered Light Imaging: Resolving the substructure of nerve fiber crossings in whole brain sections with micrometer resolution [PDF]
NeuroImage 233, 117952 (2021), 2020 For developing a detailed network model of the brain based on image reconstructions, it is necessary to spatially resolve crossing nerve fibers. The accuracy hereby depends on many factors, including the spatial resolution of the imaging technique. 3D Polarized Light Imaging (3D-PLI) allows the three-dimensional reconstruction of nerve fiber tracts in ...
arxiv +1 more source
Leukocoria from myelinated nerve fibers and retinoblastoma
The Pan-American Journal of Ophthalmology, 2021 We report the clinical findings and imaging in an 11-month-old male referred to the pediatric ocular oncology service for leukocoria. The diagnosis of concomitant myelinated nerve fibers and retinoblastoma group O/C was established.
Omar Warda +4 more
doaj +1 more source
Morphological and neurophysiological impairment of the nerve in type II macrodactyly. [PDF]
PLoS ONE, 2018 BACKGROUND:Macrodactyly is a congenital malformation characterized by aggressive overgrowth of multiple tissues, including subcutaneous fat, nerves, and bones in digits or limbs.
Xi Yang +5 more
doaj +1 more source
Revista Brasileira de Oftalmologia, 2020 The presence of retinal myelinated nerve fibers is not a rare finding during routine examinations, and it is usually a benign and isolated finding. However, in some rare cases, it can be associated with other ophthalmological conditions.
Aluisio Rosa Gameiro Filho +2 more
doaj +1 more source
Head-to-nerve analysis of electromechanical impairments of diffuse axonal injury [PDF]
Biomechanics and Modeling in Mechanobiology volume 18, pages
361-374(2019), 2020 The aim was to investigate mechanical and functional failure of diffuse axonal injury (DAI) in nerve bundles following frontal head impacts, by finite element simulations. Anatomical changes following traumatic brain injury are simulated at the macroscale by using a 3D head model.
arxiv +1 more source
Image Analysis and Stereology, 2011 Unbiased stereological sampling and counting techniques for estimating the total length, total volume and diameter distribution of myelinated nerve fibers in white matter and the total number of synapses in neocortex of human autopsy brains were ...
Yong Tang +3 more
doaj +1 more source
Single-fiber electromyography in patients with diabetic neuropathy
Medical Journal of Babylon, 2022 Diabetic peripheral neuropathy (DPN) is the most common microvascular complication of diabetes mellitus. Clinically, it affects the most distal extremities, first resulting in a stock and glove pattern of sensory loss.
Zahid Mohammad Kadhim +2 more
doaj +1 more source