Results: 11

Visão integrativa da dor em seu aspecto biopsicossocial

REVISA (Online); 12 (2), 2023
Na definição padrão da medicina a nocicepção ou algesia é a transdução, condução e processamento de sinais nervosos aferentes gerados por nociceptores estimulados,resultando na percepção da dor. Os sinais de estímulos nocivos (mecânicos, térmicos ou químicos) são transmitidos principalme...

Coexistence of Straatsma syndrome without macular extension and abnormal ellipsoid zone

Rev. bras. oftalmol; 81 (), 2022
ABSTRACT Myelinated retinal nerve fibers are rare congenital anomalies that appear as gray-white patches. They may be present in a syndrome characterized by ipsilateral myelinated retinal nerve fibers, myopia and amblyopia. The author reported an ellipsoid zone defect on spectral domain optical coherence...

Straatsma syndrome

Rev. bras. oftalmol; 79 (1), 2020
Abstract 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. We describe a case of a patient with the triad myelin nerv...

140 Years of the Leçons sur l'histologie du système nerveux: the pioneering description of the nodes of Ranvier

Arq. neuropsiquiatr; 77 (10), 2019
ABSTRACT This paper reviews aspects of the life and work of Professor Louis Ranvier 140 years after the publication of Leçons sur l'histologie du système nerveux, published in 1878, and shows the importance of the histological description of myelinated fibers of the nodes of Ranvier....

Foveosquisis miópica asociada al Síndrome de Straatsma
Myopic foveoschisis associated with Straatsma's syndrome

Rev. cuba. oftalmol; 32 (2), 2019
RESUMEN Este reporte describe la presentación concomitante de foveosquisis miópica y fibras de mielina en una paciente con miopía elevada. La primera puede ser un hallazgo incidental, pero no infrecuente en pacientes con miopía elevada, y causa pérdida visual central severa. La segunda es infrecuent...

Straatsma syndrome: two case reports

Rev. bras. oftalmol; 76 (5), 2017
Abstract This article reports two cases of Straatsma Syndrome, a rare disease, emphasizing its clinical features that inclued myopia, strabismus and amblyopia associated with persistent myelinated fibers in the retina. Ophthalmic examination, color retinography and optical coherence tomography were perfo...

Hind limb sensory innervation in rats: comparison between sural and saphenous nerve morphometry

Int. j. morphol; 33 (2), 2015
Although numerous studies investigate sensory recovery of the hind paw of the rat after nerve damage, still no comprehensive overview of its normal innervation is present in the literature. We investigated the morphometry of myelinated fibers in the sural and saphenous nerves and analyzed their size dist...

Contribución de fibras mielínicas provenientes de los nervios espinales lumbares L4, L5 y L6 al nervio ciático de rata adulta y sus ramas principales

Iatreia; 13 (4), 2000
El nervio ciático de la rata está formado por los nervios espinales (NE) lumbares L4, L5 y L6. Sin embargo, aún no se ha definido el aporte en fibras mielínicas de estos nervios espinales a lo largo del tronco nervioso. En este estudio se transectaron selectivamente los NE L4, L5 y L4-L5. Luego de un...

Quantitative analysis of the myelinated axons in the fasciculus gracilis and fasciculus cuneatus: light microscopy study

Rev. chil. anat; 15 (1), 1997
Fueron estudiados los fascículos grácil y cuneiforme de la médula espinal del Rattus norvegicus, mutante de la línea Wistar a nivel del primer y sexto segmentos cervicales, empleando la microscopía óptica, con la finalidad de evaluar el grado de mielinización para las edades cero, 1, 3, 5, 10, 15,...