Myelinated Fibers
Mostrando 1-12 de 63 artigos, teses e dissertações.
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1. 140 Years of the Leçons sur l’histologie du système nerveux: the pioneering description of the nodes of Ranvier
RESUMO Os autores apresentam uma revisão sobre aspectos da vida e obra do Professor Louis Ranvier 140 anos após a publicação de seu livro Leçons sur l’histologie du système nerveux publicado em 1878 e mostra a importância da descrição histológica nas fibras mielínicas dos nodos de Ranvier.ABSTRACT This paper reviews aspects of the life and work
Arq. Neuro-Psiquiatr.. Publicado em: 24/10/2019
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2. Inside-out and standard vein grafts associated with platelet-rich plasma (PRP) in sciatic nerve repair. A histomorphometric study
Abstract Purpose: To evaluated the tubulization technique with standard and inside-out vein, filled or not with platelet-rich plasma (PRP), in sciatic nerve repair. Methods: Seventy male Wistar rats were randomly divided into five groups: IOVNF (Inside-Out Vein with No Filling); IOVPRP (Inside-Out Vein filled with PRP); SVNF (Standard Vein with No Fillin
Acta Cir. Bras.. Publicado em: 2017-08
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3. Stretch-induced nerve injury: a proposed technique for the study of nerve regeneration and evaluation of the influence of gabapentin on this model
The rat models currently employed for studies of nerve regeneration present distinct disadvantages. We propose a new technique of stretch-induced nerve injury, used here to evaluate the influence of gabapentin (GBP) on nerve regeneration. Male Wistar rats (300 g; n=36) underwent surgery and exposure of the median nerve in the right forelimbs, either with or
Braz J Med Biol Res. Publicado em: 06/11/2013
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4. Correlação entre densidade de fibras nervosas em biópsia de pele e teste de quantificação da sensibilidade térmica em pacientes com hanseníase
It is known that, in lesions of leprosy, loss of tactile sensitivity, mediated by thick myelinated A-beta type nerve fibers, is preceded by the loss of thermal sensitivity, mediated by thin myelinated A-delta type and thin unmyelinated C type thin fibers, which makes the evaluation of the thermal sensitivity of a suspicious lesion a fundamental criterion for
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/02/2011
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5. Effect of neurotrophic factor, MDP, on rats’ nerve regeneration
Our objective was to determine the immune-modulating effects of the neurotrophic factor N-acetylmuramyl-L-alanyl-D-isoglutamine (MDP) on median nerve regeneration in rats. We used male Wistar rats (120-140 days of age, weighing 250-332 g) and compared the results of three different techniques of nerve repair: 1) epineural neurorrhaphy using sutures alone (gr
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-04
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6. Emprego do colageno com organização supramolecular na regeneração nervosa periferica in vitro e in vivo / Influence of a naturally supraorganized collagen on the peripheral nerve regeneration in vitro and in vivo
The present study investigated in vitro and in vivo the influence of naturally supraorganized collagen on the peripheral nerve regeneration. In the in vitro study, Schwann cells (SCs) were seeded on naturally supraorganized collagen membranes and evaluated with immunocytochemistry and scanning electron microscopy. The results revealed that SCs kept the expre
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/03/2010
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7. Mobilização neural como recurso terapêutico na recuperação funcional e morfológica do nervo ciático de ratos após lesão traumática
The present study examined the effects of Neural Mobilization (NM) in the functional sensory-motor recovery after sciatic nerve crush injury in rats. The nerve crush was performed on adult male rats, submitted to 15 sessions of passive neural mobilization treatment through a modified straight leg raise (SLR) test, with groups starting at 3 different times:1,
Publicado em: 2009
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8. Diversity among satellite glial cells in dorsal root ganglia of the rat
Peripheral glial cells consist of satellite, enteric glial, and Schwann cells. In dorsal root ganglia, besides pseudo-unipolar neurons, myelinated and nonmyelinated fibers, macrophages, and fibroblasts, satellite cells also constitute the resident components. Information on satellite cells is not abundant; however, they appear to provide mechanical and metab
Brazilian Journal of Medical and Biological Research. Publicado em: 31/10/2008
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9. Anatomia ultraestrutural do nervo frênico de ratos: alterações decorrentes do diabete experimental crônico.
Streptozotocin (STZ) induced diabetes is known to cause a reduction of both conduction velocity and axon caliber in rat nerves and also a decrease in muscle fiber size. In the present study we investigated the phrenic nerve neuropathy, due to experimental diabetes induced by STZ and the evolution of this neuropathy in diabetic rats treated with insulin. Prox
Publicado em: 2008
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10. An immunohistochemical, clinical and electroneuromyographic correlative study of the neural markers in the neuritic form of leprosy
The nerve biopsies of 11 patients with pure neuritic leprosy were submitted to routine diagnostic procedures and immunoperoxidase staining with antibodies against axonal (neurofilament, nerve growth factor receptor (NGFr), and protein gene product (PGP) 9.5) and Schwann cell (myelin basic protein, S-100 protein, and NGFr) markers. Two pairs of non-adjacent h
Brazilian Journal of Medical and Biological Research. Publicado em: 2006-08
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11. Aspectos descritivos e quantitativos da anatomia macroscópica e microscópica do nervo vestíbulo-coclear de cobaias / Descriptive and Quantitative Aspects of macroscopic and microscopic anatomy of the vestibulocochlear nerve of guinea pigs
O nervo vestíbulo-coclear da cobaia possui peculiaridades não encontradas em outros nervos periféricos. Não foram encontradas informações detalhadas sobre os aspectos morfométricos do VIII nervo craniano em cobaias adultas na literatura. A avaliação descritiva e quantitativa no presente estudo, evidencia informações que precedem o estudo das alter
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/06/2005
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12. "Avaliação do dano neuronal e axonal tardio, secundário ao traumatismo craniencefálico moderado e grave, por técnicas quantitativas em ressonância magnética" / Evaluation of delayed neuronal and axonal damage, secondary to moderate and severe traumatic brain injury, using quantitative magnetic resonance techniques.
Closed traumatic brain injury (TBI) is a classic model of monophasic neuronal and axonal injury, where tissue damage mainly occurs at the moment of trauma, followed by anterograde and retrograde Wallerian degeneration in the subsequent days. There are some evidences of delayed progression of the neuronal and axonal loss after TBI, mainly shown by gradual dev
Publicado em: 2005