The effects of Erigeron breviscapus preparation on the imaging and neuronal metabolites at the early time points after reperfusion following the ischemic cerebral injury in rats / 中国中药杂志
China Journal of Chinese Materia Medica
;
(24): 163-166, 2003.
Article
Dans Chinois
| WPRIM
| ID: wpr-266792
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the effects of Erigeron breviscapus preparation on the imaging and neuronal metabolites after reperfusion in the ischemic cerebral injury in rats.</p><p><b>METHOD</b>Twenty-three male Sprague Dawley rats with an average body weight of (165 +/- 15) g (mean +/- S) were used, and were randomly divided into two groups group A rats (n = 11) underwent an operation of ischemic brain injury, group B rats (n = 12) underwent the same operation and received the treatment of Erigeron breviscapus preparation (1.5 mg.kg-1 weight, i.p.). The right middle cerebral artery occlusion (MCAO) of rats in both groups was induced by 5/0 nylon suture for 2 hours. The reperfusion was conducted for four hours and six hours respectively following MCAO. T2 weighted-imaging (T2WI) and 1H-magnetic resonance spectroscopy (1H-MRS) were performed, to study the changes of the imaging and the neuronal metabolites N-acetyl aspartate (NAA), creatine/phosphocreatine (Cr/PCr), choline (Cho) and lactose (Lac) in cerebrum following cerebral ischemia.</p><p><b>RESULT</b>The hyperintense signals in the right cerebrum in group B decreased compared with those in group A, the T2 values decreased, the level of NAA increased, the ratio of Cr/NAA and Cho/NAA decreased, and no lactose was observed. The brain surface vessels of rats in group B were in the state of dilation.</p><p><b>CONCLUSION</b>Erigeron breviscapus preparation is beneficial to the reestablishment of the blood circulation in the ischemic brain, and to the improvement of the neuronal metabolism and survival.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Anatomopathologie
/
Pharmacologie
/
Plantes médicinales
/
Encéphale
/
Médicaments issus de plantes chinoises
/
Imagerie par résonance magnétique
/
Spectroscopie par résonance magnétique
/
Lésion d'ischémie-reperfusion
/
Répartition aléatoire
/
Encéphalopathie ischémique
Limites du sujet:
Animaux
langue:
Chinois
Texte intégral:
China Journal of Chinese Materia Medica
Année:
2003
Type:
Article
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