Axonal degeneration and demyelination following traumatic spinal cord injury: A systematic review and meta-analysis.
J Chem Neuroanat
; 97: 9-22, 2019 04.
Article
en En
| MEDLINE
| ID: mdl-30726717
ABSTRACT
The pathophysiology of spinal cord injury (SCI) related processes of axonal degeneration and demyelination are poorly understood. The present systematic review and meta-analysis were performed such to establish quantitative results of animal studies regarding the role of injury severity, SCI models and level of injury on the pathophysiology of axon and myelin sheath degeneration. 39 related articles were included in the analysis. The compiled data showed that the total number of axons, number of myelinated axons, myelin sheath thickness, axonal conduction velocity, and internode length steadily decreased as time elapsed from the injury (Pfor trend<0.0001). The rate of axonal retrograde degeneration was affected by SCI model and severity of the injury. Axonal degeneration was higher in injuries of the thoracic region. The SCI model and the site of the injury also affected axonal retrograde degeneration. The number of myelinated axons in the caudal region of the injury was significantly higher than the lesion site and the rostral region. The findings of the present meta-analysis show that the pathophysiology of axons and myelin sheath differ in various phases of SCI and are affected by multiple factors related to the injury.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Traumatismos de la Médula Espinal
/
Enfermedades Desmielinizantes
/
Degeneración Nerviosa
Tipo de estudio:
Prognostic_studies
/
Systematic_reviews
Límite:
Animals
Idioma:
En
Revista:
J Chem Neuroanat
Asunto de la revista:
ANATOMIA
/
NEUROLOGIA
/
QUIMICA
Año:
2019
Tipo del documento:
Article
País de afiliación:
Irán