首页|右美托咪定对脑出血小鼠肥大细胞激活及神经功能损伤的影响

右美托咪定对脑出血小鼠肥大细胞激活及神经功能损伤的影响

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目的 探讨右美托咪定对小鼠脑出血后神经功能损伤及肥大细胞激活的影响。方法 小鼠脑出血前30 min经腹腔注射右美托咪定,脑出血模型制备完成后检测小鼠神经功能、脑含水量、血肿周围肥大细胞数量及类胰蛋白酶、白细胞介素-1β(IL-1β)、肿瘤坏死因子-α(TNF-α)表达量。结果 与对照组比较,脑出血组的小鼠神经系统功能评分明显提升(P<0。05),脑含水量明显增加(P<0。05),肥大细胞数量明显增加(P<0。05),类胰蛋白酶、IL-1β和TNF-α表达量明显增加(P<0。05);而右美托咪定组的小鼠神经功能评分明显下降(P<0。05),脑含水量明显减少(P<0。05),肥大细胞数量明显减少(P<0。05),类胰蛋白酶、IL-1β和TNF-α表达量明显减少(P<0。05)。结论 右美托咪定可以抑制脑出血后血肿周边肥大细胞的激活,减轻小鼠神经功能损害。
Effects of dexmedetomidine on activation of mast cells around hematoma and neurological impairment in mouse intracerebral hemorrhage
Objective To explore the effect of dexmedetomidine on the neurological function and mast cells activation in the mouse with intracerebral hemorrhage(ICH).Methods The mouse was intraperitoneal-ly injected with dexmedetomidine at 30 min before intracerebral hemorrhage.After the preparation of intrace-rebral hemorrhage model,the neurological function,brain water content,number of mast cells around hemato-ma and expression levels of tryptase,IL-1β,TNF-α were detected.Results Compared with the control group,the neurological function score in the intracerebral hemorrhage group was significantly elevated(P<0.05),the brain water content was significantly increased(P<0.05),the mast cells number was significantly in-creased(P<0.05),and the tryptase,IL-1β and TNF-α expression levels were sinificantly increased(P<0.05);while the neurological function score in the dexmedetomidine group was significantly decreased(P<0.05),the brain water content was significantly decreased(P<0.05),the number of mast cells was signifi-cantly reduced and the tryptase,IL-1β and TNF-α expression levels were significantly decreased(P<0.05).Conclusion Dexmedetomidine could inhibit the activation of mast cells around hematoma and reduce the dam-age of neurological function after mouse intracerebral hemorrhage.

dexmedetomidineintracerebral hemorrhagemast cellneurological function

杨正宇、毛庆祥

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陆军军医大学大坪医院麻醉科,重庆 400042

右美托咪定 脑出血 肥大细胞 神经功能

重庆市自然科学基金面上项目

cstc2019jcyjmsxmX0018

2024

重庆医学
重庆市卫生信息中心,重庆市医学会

重庆医学

CSTPCD
影响因子:1.797
ISSN:1671-8348
年,卷(期):2024.53(2)
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