Effects of hypertonic sodium chloride hydroxyethyl starch 40 on brain histopathology in rats with whole body hyperthermia / 南方医科大学学报
Journal of Southern Medical University
; (12): 2067-2071, 2011.
Article
em Zh
| WPRIM
| ID: wpr-265717
Biblioteca responsável:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the effects of hypertonic sodium chloride hydroxyethyl starch 40 (HSH) on brain edema and morphological changes during whole body hyperthermia (WBH) in rats.</p><p><b>METHODS</b>Sixty adult male SD rats were randomized into control group, WBH group without fluid infusion (group HT), WBH group with Ringer's infusion (group RL), WBH group with HAES + Ringer's infusion (group HRL) and WBH group with HSH infusion (group HSH). WBH was induced by exposure to 36 degrees celsius; for 3 h to achieve a rectal temperature of 41-42 degrees celsius;, and the corresponding fluids were administered intravenously within 30 min at the beginning of WBH. The control rats were housed at a controlled room temperature (22∓1) degrees celsius; for 4 h. After cooling at room temperature for 1 h, the rats were sacrificed and brain water content and morphological changes were evaluated.</p><p><b>RESULTS</b>Compared with the control group, all the WBH groups had significantly increased brain water content (P<0.05 or 0.01), but group HSH showed a significantly lower brain water content than group HT (P<0.05). The rats in groups HT, RL and HRL showed serious to moderate structural changes of the brain tissue and nerve cells, but HSH group had only mild pathologies.</p><p><b>CONCLUSION</b>HSH can reduce brain edema and ameliorate the damages to brain cells in rats exposed to WBH.</p>
Texto completo:
1
Base de dados:
WPRIM
Assunto principal:
Patologia
/
Solução Salina Hipertônica
/
Encéfalo
/
Edema Encefálico
/
Derivados de Hidroxietil Amido
/
Ratos Sprague-Dawley
/
Usos Terapêuticos
/
Hipertermia Induzida
Limite:
Animals
Idioma:
Zh
Revista:
Journal of Southern Medical University
Ano de publicação:
2011
Tipo de documento:
Article