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1.河南省中西医结合医院中药研究所,郑州 450004
2.河南省中药制剂工程技术研究中心,郑州 450004
3.郑州卷烟厂康复医院药剂科,郑州 450047
助理研究员,硕士。研究方向:中药药效物质基础。E-mail:mgmlhn@163.com
副研究员。研究方向:中药药理。E-mail:liuchhn371@163.com
收稿日期:2024-08-28,
修回日期:2025-01-05,
录用日期:2025-01-06,
纸质出版日期:2025-02-15
移动端阅览
李华妮,刘长河,郭晓燕,等.心脑舒通胶囊抑制铁死亡减轻大鼠脑缺血再灌注损伤的机制[J].中国药房,2025,36(03):306-311.
LI Huani,LIU Changhe,GUO Xiaoyan,et al.Mechanism of Xinnao shutong capsule alleviating cerebral ischemia-reperfusion injury in rats by regulating ferroptosis[J].ZHONGGUO YAOFANG,2025,36(03):306-311.
李华妮,刘长河,郭晓燕,等.心脑舒通胶囊抑制铁死亡减轻大鼠脑缺血再灌注损伤的机制[J].中国药房,2025,36(03):306-311. DOI: 10.6039/j.issn.1001-0408.2025.03.08.
LI Huani,LIU Changhe,GUO Xiaoyan,et al.Mechanism of Xinnao shutong capsule alleviating cerebral ischemia-reperfusion injury in rats by regulating ferroptosis[J].ZHONGGUO YAOFANG,2025,36(03):306-311. DOI: 10.6039/j.issn.1001-0408.2025.03.08.
目的
2
研究心脑舒通胶囊调控铁死亡途径减轻大鼠脑缺血再灌注损伤(CIRI)的机制。
方法
2
将大鼠随机分为假手术组,模型组,心脑舒通低、高剂量组(220、440 mg/kg),银杏叶提取物组(阳性对照,150 mg/kg)。各组大鼠灌胃相应药液/生理盐水,连续7 d。采用短暂性大脑中动脉闭塞法复制CIRI模型,术后24 h进行取材,检测大鼠脑梗死面积,并计算脑梗死率;观察大鼠脑组织病理学变化;检测大鼠脑组织中总铁和血清中脂质过氧化物(LPO)、丙二醛(MDA) 、谷胱甘肽(GSH)水平;检测大鼠脑组织中核转录因子红系2相关因子2(Nrf2)/血红素氧合酶1(HO-1)/谷胱甘肽过氧化物酶4(GPX4)蛋白和mRNA表达水平。
结果
2
与模型组比较,银杏叶提取物组和心脑舒通各剂量组大鼠脑梗死率、脑组织中总铁水平、血清中LPO水平(银杏叶提取物组和心脑舒通低剂量组除外)均显著降低(
P
<0.05或
P
<0.01);血清中GSH水平以及脑组织中Nrf2、HO-1、GPX4蛋白和mRNA表达水平均显著升高(
P
<0.05或
P
<0.01);脑组织病理损伤减轻,神经细胞数目增多,水肿减轻,核膜平整。
结论
2
心脑舒通胶囊可抑制铁死亡,减轻CIRI,其作用机制可能与激活Nrf2/HO-1/GPX4信号通路有关。
OBJECTIVE
2
To study the mechanism of Xinnao shutong capsule alleviating cerebral ischemia reperfusion injury (CIRI) in rats by regulating the ferroptosis pathway.
METHODS
2
SD rats were randomly divided into sham operation group, model group, Xinnao shutong low-dose, high-dose group (220, 440 mg/kg),
Ginkgo biloba
leaves extract group (positive control, 150 mg/kg). Each group of rats was orally administered with the corresponding medication/normal saline for 7 consecutive days. Transient occlusion of the middle cerebral artery was adopted to induce the CIRI model; the samples were taken 24 h after the operation; the cerebral infarction area of rats was detected, and the cerebral infarction rate was calculated. The pathological changes of brain tissues were observed, and the levels of lipid peroxide (LPO), malondialdehyde (MDA) and glutathione (GSH) in cerebral tissue were detected; mRNA and protein expressions of nuclear factor-erythroid 2-related f
actor 2 (Nrf2), heme oxygenase 1(HO-1) and glutathione peroxidase 4 (GPX4) were all detected in cerebral tissue of rats.
RESULTS
2
Compared with model group, the cerebral infarction rate, the content of total iron in cerebral tissue and serum level of LPO (except for
Ginkgo biloba
leaves extract group and Xinnao shutong low-dose group) were all decreased significantly in
G. biloba
leaves extract group and Xinnao shutong groups (
P
<0.05 or
P
<0.01); the serum level of GSH, the protein and mRNA expressions of Nrf2, HO-1 and GPX4 were all increased significantly (
P
<0.05 or
P
<0.01). The pathological damage to brain tissue was reduced, the number of nerve cells increased, the edema was alleviated, and the nuclear membrane was flattened.
CONCLUSIONS
2
Xinnao shutong capsule can inhibit ferroptosis and reduce CIRI, the mechanism of which may be associated with the activation of the Nrf2/HO-1/GPX4 signaling pathway.
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