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Mostrando ítems 21-30 de 33
Artículo
Dual encoding of muscle tension and eye position by abducens motoneurons
(Society for Neuroscience, 2011)
Extraocular muscle tension associated with spontaneous eye movements has a pulse-slide-step profile similar to that of motoneuron firing rate. Existing models only relate motoneuron firing to eye position, velocity and ...
Artículo
VEGF is an essential retrograde trophic factor for motoneurons
(National Academy of Sciences, 2022)
VEGF was initially discovered due to its angiogenic activity and therefore named "vascular endothelial growth factor."However, its more recently discovered neurotrophic activity may be evolutionarily more ancient. Our ...
Artículo
Proprioceptors in extraocular muscles
(Wiley-Blackwell, 2023)
New Findings: What is the topic of this review? This review aims to evaluate the literature on proprioceptors and particular nerve specializations (palisade endings) in mammalian extraocular muscles (EOMs) and to reconsider ...
Artículo
Complementary Actions of BDNF and Neurotrophin-3 on the Firing Patterns and Synaptic Composition of Motoneurons
(Society for Neuroscience, 2009)
Neurotrophins, as target-derived factors, are essential for neuronal survival during development, but during adulthood, their scope of actions widens to become also mediators of synaptic and morphological plasticity. Target ...
Artículo
Extraocular Motor System Exhibits a Higher Expression of Neurotrophins When Compared with Other Brainstem Motor Systems
(Frontiers Media, 2017)
Extraocular motoneurons resist degeneration in diseases such as amyotrophic lateral sclerosis. The main objective of the present work was to characterize the presence of neurotrophins in extraocular motoneurons and muscles ...
Artículo
Synaptic loss and firing alterations in Axotomized Motoneurons are restored by vascular endothelial growth factor (VEGF) and VEGF-B
(Elsevier, 2018)
Vascular endothelial growth factor (VEGF), also known as VEGF-A, was discovered due to its vasculogenic and angiogenic activity, but a neuroprotective role for VEGF was later proven for lesions and disorders. In different ...
Artículo
Implanted neural progenitor cells regulate glial reaction to brain injury and establish gap junctions with host glial cells
(Wiley-Blackwell, 2014)
Transplantation of neural stem/progenitor cells (NPCs) in the lesioned brain is able to restore morphological and physiological alterations induced by different injuries. The local microenvironment created at the site of ...
Artículo
Palisade endings have an exocytotic machinery but lack acetylcholine receptors and distinct acetylcholinesterase activity
(ARVO, 2020)
Purpose: The purpose of this work was to test whether palisade endings express structural and molecular features of exocytotic machinery, and are associated with acetylcholine receptors, and enzymes for neurotransmitter ...
Artículo
Differential regulation of the expression of neurotrophin receptors in rat extraocular motoneurons after lesion
(Wiley, 2011)
Neurotrophins acting through high-affinity tyrosine kinase receptors (trkA, trkB, and trkC) play a crucial role in regulating survival and maintenance of specific neuronal functions after injury. Adult motoneurons supplying ...
Artículo
Functional diversity of motoneurons in the oculomotor system
(National Academy of Sciences, 2019-02-26)
Extraocular muscles contain two types of muscle fibers according to their innervation pattern: singly innervated muscle fibers (SIFs), similar to most skeletal muscle fibers, and multiply innervated muscle fibers (MIFs). ...