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槐角苷及其苷元染料木素的生物活性研究进展
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作者 包戈华 万美霞 +4 位作者 陈虎虎 邱倩 尚雅珍 闫捷 黎娟 《陇东学院学报》 2024年第5期78-82,共5页
槐角苷及其苷元染料木素为中药槐角的主要化学成分,在槐角中含量高,具有多种生物活性作用。通过查阅大量国内外文献和相关图书资料,发现其在抗癌防癌、防治骨质疏松症、抗心血管疾病、抗氧化、抗炎、避孕、保护神经、抗辐射、增强免疫... 槐角苷及其苷元染料木素为中药槐角的主要化学成分,在槐角中含量高,具有多种生物活性作用。通过查阅大量国内外文献和相关图书资料,发现其在抗癌防癌、防治骨质疏松症、抗心血管疾病、抗氧化、抗炎、避孕、保护神经、抗辐射、增强免疫和抗哮喘等多方面的应用均具有重要意义,可为传统中医药的发展提供更广阔的前景。 展开更多
关键词 槐角 槐角苷 染料木素
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驴食草酚对过氧化氢引起人脐静脉内皮细胞损伤的保护作用
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作者 李亚超 商亚珍 唐世英 《承德医学院学报》 2024年第2期91-95,共5页
目的探讨驴食草酚(vestitol)对过氧化氢(H_(2)O_(2))引起人脐静脉内皮细胞(HUVEC)损伤的保护作用。方法体外培养HUVEC,通过设置700~900μmol/L H_(2)O_(2)系列浓度筛选H_(2)O_(2)损伤HUVEC浓度。设置1.25~20 mg/L驴食草酚系列浓度筛选... 目的探讨驴食草酚(vestitol)对过氧化氢(H_(2)O_(2))引起人脐静脉内皮细胞(HUVEC)损伤的保护作用。方法体外培养HUVEC,通过设置700~900μmol/L H_(2)O_(2)系列浓度筛选H_(2)O_(2)损伤HUVEC浓度。设置1.25~20 mg/L驴食草酚系列浓度筛选驴食草酚对HUVEC细胞毒作用。H_(2)O_(2)作用于HUVEC,评价驴食草酚对H_(2)O_(2)引起HUVEC损伤的保护作用。银杏叶提取物(GBE)为阳性对照药。倒置显微镜观察细胞形态,CCK-8法检测细胞存活率,丙酮酸还原法检测乳酸脱氢酶(LDH)释放量。结果随着H_(2)O_(2)浓度的增加,HUVEC的受损程度逐渐增加,细胞形态发生异常改变,细胞存活率逐渐降低,LDH释放量逐渐增加,综合确定H_(2)O_(2)损伤HUVEC浓度为750μmol/L。1.25~10 mg/L驴食草酚对HUVEC无细胞毒性,20 mg/L驴食草酚对HUVEC开始产生毒作用,最高无毒浓度为10 mg/L。驴食草酚可改善H_(2)O_(2)所致HUVEC细胞形态异常改变,提高HUVEC细胞存活率,减少LDH释放量。结论驴食草酚可有效减轻H_(2)O_(2)引起的HUVEC损伤。 展开更多
关键词 驴食草酚 人脐静脉内皮细胞 过氧化氢
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Attenuation of Scutellaria barbata flavonoids on cortical cytoplasm apoptotic factors disorders induced by complex Aβ_(25-35) in rats
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作者 shang ya-zhen GUO Ke +2 位作者 CUI Ya-di ZHAO Hong-xiang ZHANG Shu-feng 《中国药理学与毒理学杂志》 CAS CSCD 北大核心 2016年第10期1023-1023,共1页
OBJECTIVE To investigate the effect of SBF on cortical cytoplasm apoptotic factors disturbances induced by complex Aβ25-35in rats.METHODS The cerebral injuries model was established by rats received intracere-brovent... OBJECTIVE To investigate the effect of SBF on cortical cytoplasm apoptotic factors disturbances induced by complex Aβ25-35in rats.METHODS The cerebral injuries model was established by rats received intracere-broventricular injection of RHTGF-β1,Aβ25-35and Al Cl3and then accepted SBF treatment.All the rats were sacrificed by decapitation for indicators detection at last the drug treatment.Western blotting method was for caspase-3 protein expression and RT-PCR method detected cytochrome c,apoptotic protease activating factor-1(Apaf-1),caspase-9 m RNA expression in cortical cytoplasm.RESULTS The protein expression of caspase-3in cortical cytoplasm of rats was assayed by Western blotting.The results indicated that compared with the sham group,the caspase-3 protein expression of cortical cytoplasm in Aβgroup was significantly increased(P<0.01).However,the increased expression can be obviously reversed by SBF at doses of 35,70 and 140mg·kg-1,as compared with model group(P<0.01).The Cyt-C,Apaf-1 and caspase-9 m RNA expressions in cortical cytoplasm of rats were determined by RT-PCR.The results indicated that compared with the sham group,the Cyt-C Apaf-1 and caspase-9 m RNA relative expressions of cortical cytoplasm in Aβgroup was significantly increased(P<0.01).However,these increased expressions can be differently reversed by SBF at doses of 35,70 and 140 mg·kg-1,as compared with model group(P<0.01).CONCLUSION SBF can definitely improve rats′cortical cytoplasm apoptotic factors disorders induced by complex Aβ25-35,which maybe benefit for treatment of degenerative disease. 展开更多
关键词 Scutellaria barbata flavonoids apoptosis
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