Establishment of a mechanical injury model of rat hippocampal neurons in vitro / 中华创伤杂志(英文版)
Chinese Journal of Traumatology
;
(6): 29-33, 2006.
Article
Dans Anglais
| WPRIM
| ID: wpr-280942
ABSTRACT
<p><b>OBJECTIVE</b>To establish a simple, reproducible, and practical mechanical injury model of hippocampal neurons of Sprague-Dawley rats in vitro.</p><p><b>METHODS</b>Hippocampal neurons isolated from 1-2-day old rats were cultured in vitro. Mild, moderate and severe mechanical injuries were delivered to the neurons by syringe needle tearing, respectively. The control neurons were treated identically with the exception of trauma. Cell damage was assessed by measuring the Propidium Iodide (PI) uptaking at different time points (0.5, 1, 6, 12 and 24 hours) after injury. The concentration of neuron specific enolase was also measured at some time points.</p><p><b>RESULTS</b>Pathological examination showed that degeneration, degradation and necrosis occurred in the injured cultured neurons. Compared with the control group, the ratio of PI-positive cells in the injured groups increased significantly after 30 minutes of injury (P<0.05). More severe the damage was, more PI-positive neurons were detected. Compared with the control group, the concentration of neuron specific enolase in the injured culture increased significantly after 1 hour of injury (P<0.05).</p><p><b>CONCLUSIONS</b>The established model of hippocampal neuron injury in vitro can be repeated easily and can simulate the damage mechanism of traumatic brain injury, which can be used in the future research of traumatic brain injury.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Anatomopathologie
/
Enolase
/
Plaies et blessures
/
Techniques in vitro
/
Lésions encéphaliques
/
Répartition aléatoire
/
Reproductibilité des résultats
/
Analyse de variance
/
Rat Sprague-Dawley
/
Conception d'appareillage
Type d'étude:
Étude pronostique
Limites du sujet:
Animaux
langue:
Anglais
Texte intégral:
Chinese Journal of Traumatology
Année:
2006
Type:
Article
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