Wu Zhixuan,Wang Maojuan,Li Zuoxiao.Neuroprotective effect of edaravone dexborneol on rats with intracerebral hemorrhage[J].Journal of Chongqing Medical University,2025,50(8):1029-1034.
Wu Zhixuan,Wang Maojuan,Li Zuoxiao.Neuroprotective effect of edaravone dexborneol on rats with intracerebral hemorrhage[J].Journal of Chongqing Medical University,2025,50(8):1029-1034. DOI: 10.13406/j.cnki.cyxb.003755.
Neuroprotective effect of edaravone dexborneol on rats with intracerebral hemorrhage
To investigate the role and possible mechanism of edaravone dexborneol in the prevention and control of pathological injury of brain tissue around hematoma after intracerebral hemorrhage(ICH).
Methods
2
A total of 176 Sprague-Dawley rats were randomly divided into sham-operation group,ICH group,edaravone group,and edaravone dexborneol group,with 44 rats in each group. All rats except those in the sham-operation group were used to establish a rat model of acute ICH,and each group was further divided into 1-day,3-day,7-day,and 14-day subgroups according to the time of evaluation,with 11 rats in each subgroup. At 2 hours after modeling,drugs were administered via intraperitoneal injection,i.e.,6 ml/kg normal saline for the sham-operation group and the ICH group,6 mg/kg edaravone for the edaravone group,and 7.5 mg/kg edaravone dexborneol for the edaravone dexborneol group,followed by subsequent administration every 12 hours until day 14. The modified Neurological Severity Score(mNSS) was used to assess neurological function;the wet-dry weight method was used to measure the water content of brain tissue;the biochemical methods were used to measure nitric oxide(NO) and total antioxidant capacity(T-AOC) in brain tissue around the hematoma;immunohistochemistry was used to measure the content of CD16 and CD206 in brain tissue around the hematoma.
Results
2
The mNSS score on day 3(peak of the disease) was 0.6±0.5 for the sham-operation group,14.0±1.6 for the ICH group,9.8±0.8 for the edaravone group,and 10.4±1.1 for the edaravone dexborneol group,with a water content of 63.2±2.14,85.61±1.43,81.48±1.9,and 76.77±1.44,respectively,and the content of NO was 2.45±0.46,9.98±0.54,8.77±0.36,and 7.92±0.43,respectively;the content of T-AOC was 0.67±0.02,0.74±0.03,0.78±0.02,and 0.84±0.03,respectively;the
content of CD16 was 143.8±15.82,3 673.81±166.33,2 970.74±132.75,and 2 521.69±140.74,respectively;the content of CD206 was 548.46±93.68,726±97.81,915.28±100.33,and 1 119.51±160.52,respectively. There were significant differences in these indicators between the edaravone dexborneol group and the other three groups (all
P
<
0.05).
Conclusion
2
Edaravone dexborneol can alleviate neurological deficit caused by ICH and exert a neuroprotective effect by reducing brain tissue edema around the hematoma,alleviating oxidative stress,and regulating the polarization of microglial cells.
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