There are four types of anastomoses between themedian and ulnar nerves in the upper
limbs. It consists of crossings of axons that produce changes in the innervation of the
upper limbs, mainly in the intrinsic muscles of the hand. The forearm has two
anatomical changes – Martin-Gruber: branch originatin...
SUMMARY: Despite the existence of a large amount of actin in the axons, the concentration F-actin was quite low in the myelinated axons and almost all the F-actin were located in the peripheries of the myelinated axons. Until now, the ultrastructural localization of F-actin has still not been reported in...
Sexual dimorphism exists at all levels of the nervous system. These sex differences could underlie genderrelated differences in behavior and neuropsychological function, as well as the gender differences in the prevalence of various mental disorders such as autism, attention deficit disorders, and schizo...
Resumen Introducción: Este artículo presenta avances de la medicina regenerativa y la ingeniería de tejidos orientados a la regeneración de neuronas, de axones y nervios. Revisamos las técnicas que existen actualmente, las más utilizas o prometedoras, en la búsqueda de avances para regenerar este...
Resumen Antecedentes: El virus linfotrópico T tipo I (HTLV-I) origina la paraparesia espástica tropical (PET) en el 3% de los infectados, afectando predominante mujeres. Excepcionalmente la PET puede asociar un síndrome vestibular central y atrofia cerebelosa. Propósito: Presentar un nuevo y excepc...
SUMMARY: The aim of this study was to determine the possible regenerative effect of neuroectodermal stem cells on the ultrastructural, and locomotor function resulting from compressed injury to the spinal cord in a rat model. Forty male rats were divided into control and sham groups (20 rats each). Compr...
ABSTRACT There are few histomorphometric studies on the unmyelinated fibers of the fibular nerve in rats, and the number of experimental studies using this nerve has been increasing in the last years. Sixty-two percent of the endoneurial area from 10 fibular nerves of adult Wistar rats was scanned by ele...
After a traumatic injury to the central nervous system, the distal stumps of axons undergo Wallerian degeneration (WD), an event that comprises cytoskeleton and myelin breakdown, astrocytic gliosis, and overexpression of proteins that inhibit axonal regrowth. By contrast, injured neuronal cell bodies sho...
Axones/efectos de los fármacos,
Axones/patología,
Muerte Celular/efectos de los fármacos,
Muerte Celular/fisiología,
Supervivencia Celular/efectos de los fármacos,
Glicoproteínas/farmacología,
Inmunohistoquímica,
Microscopía Electrónica de Transmisión,
Compresión Nerviosa,
Traumatismos del Nervio Óptico/tratamiento farmacológico,
Traumatismos del Nervio Óptico/patología,
Polivinilos/farmacología,
Ratas Wistar,
Células Ganglionares de la Retina/efectos de los fármacos,
Resultado del Tratamiento,
Degeneración Walleriana/tratamiento farmacológico
La esclerosis múltiple (EM) es la principal causa de discapacidad neurológica de origen no traumático en adultos jóvenes. EM es una enfermedad crónica inflamatoria que se caracteriza por daño a las fibras nerviosas y la cubierta de mielina. Esto produce una gran variedad de síntomas una vez que ne...
Accidents or diseases can affect the peripheral part of the nervous system, which raises clinical and surgical therapies, among others. In this context, the technique of end-to-side neurorrhaphy is a treatment option, yet its modification loop needs some additional efficacy studies. The purpose of this s...
