Effects of neurotomy on human skeletal muscle ultrastructure / Efectos de la neurotomia sobre la ultraestructura del musculo esquelético humano
Acta cient. venez
;
42(6): 319-25, 1991. ilus
Artigo
em Inglês
| LILACS
| ID: lil-105915
ABSTRACT
Effects of neurotomy on human skeletal muscle ultrastucture were studied in biopsies from denervated abdominal muscles. After 35 days of denervation the alterations included fiber atrophy which varied from slight to total, swelling and disalignment of sarcotubular system, nuclear changes, mitochondrial abnormalities, and lysosomal proliferation. Capillaries were normal and no cell infiltration was evident. Cases studied several months after neurotomy showed signs of reinnervation with a partial recovery of normal structure. The differences between the histopathological pictures caused by neurotomy and by degenerative diseases which produce neurogenic atrophy are discussed. The restorative capacity of human skeletal muscle after spontaneous reinnervation is also studied. Key words Neurotomy, Denervation, Reinnervation, Ultrastructure, Muscle pathology, Neurogenic atrophy
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Índice:
LILACS (Américas)
Assunto principal:
Músculos Abdominais
/
Denervação Muscular
Limite:
Adulto
/
Humanos
Idioma:
Inglês
Revista:
Acta cient. venez
Assunto da revista:
Ciência
Ano de publicação:
1991
Tipo de documento:
Artigo
/
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