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| 1 | Geniposide, the component of the Chinese herbal formula Tongluojiunao, protects amyloid-β peptide(1–42)-mediated death of hippocampal neurons via the non-classical estrogen signaling pathway显示文摘Tongluojiunao(TLJN) is an herbal medicine consisting of two main components, geniposide and ginsenoside Rg1. TLJN has been shown to protect primary cultured hippocampal neurons. However, its mechanism of action remains unclear. In the present study, primary cultured hippocampal neurons treated with Aβ1–42(10 μmol/L) significantly increased the release of lactate dehydrogenase, which was markedly reduced by TLJN(2 μL/mL), specifically by the component geniposide(26 μmol/L), but not ginsenoside Rg1(2.5 μmol/L). The estrogen receptor inhibitor, ICI182780(1 μmol/L), did not block TLJN- or geniposide-mediated decrease of lactate dehydrogenase under Aβ1–42-exposed conditions. However, the phosphatidyl inositol 3-kinase or mitogen-activated protein kinase pathway inhibitor, LY294002(50 μmol/L) or U0126(10 μmol/L), respectively blo cked the decrease of lactate dehydrogenase mediated by TLJN or geniposide. Therefore, these results suggest that the non-classical estrogen pathway(i.e., phosphatidyl inositol 3-kinase or mitogen-activated protein kinase) is involved in the neuroprotective effect of TLJN, specifically its component, geniposide, against Aβ1–42-mediated cell death in primary cultured hippocampal neurons. | Jiao Li Feng Wang Haimin Ding Chunyan Jin Jinyan Chen Yanan Zhao Xiaojing Li Wenju Chen Ping Sun Yan Tan Qi Zhang Xu Wang Angran Fan Qian Hua | 2014 | Neural Regeneration Research2014，9，5： | 3 |
| 2 | PI3K-AKT-mTOR信号通路在大鼠肺性脑病模型神经元自噬中的作用显示文摘目的探讨PI3K-AKT-m TOR信号通路在肺性脑病神经元自噬中的作用。方法对36只新生健康SD大鼠乳鼠建立离体培养大鼠皮层神经元,随机分为空白对照组、肺性脑病组、自噬抑制剂3-MA组后进一步建立了大鼠肺性脑病细胞模型,借助该模型运用CCK8法检测神经元活力、MDC染色观察神经元自噬泡数量、Western印迹法检测自噬相关蛋白LC3、Beclin-1及PI3K蛋白表达。结果与空白对照组比较,肺性脑病组神经元活力降低(P<0.05);神经元自噬泡数量增多;LC3-Ⅱ/Ⅰ的比值、Beclin-1及磷酸化PI3K表达水平增加(P<0.05)。使用自噬抑制剂3-MA预处理后,神经元活力降低更明显、自噬泡数量明显减少;缺氧诱导的自噬水平明显受到抑制,LC3-Ⅱ/Ⅰ的比值、Beclin-1及磷酸化PI3K表达水平明显降低。结论缺氧和二氧化碳潴留的信号使Beclin-1表达增加、LC3-Ⅰ向LC3-Ⅱ转化增加,加速PI3K磷酸化,使PI3K-AKT-m TOR信号通路失活,从而激活自噬信号通路,导致大脑神经元自噬增强。 | 曾凡军 周媛媛 熊晓琦 阮玉姝 赵必君 万晓蓉 | 2016 | 中国老年学杂志2016，36，21： | 3 |
| 3 | 以临床为线索的姜黄素作用机制探析显示文摘姜黄素(Curcumin)具有诸多药理作用,近年来对其作用机制的研究不断深入使其在临床上具有广泛的应用,作为治疗多种疾病的潜力药物的研究正越来越多的引起关注。研究显示,姜黄素治疗动脉粥样硬化、肝炎、癫痫、胃肠道疾病、肿瘤等有显著疗效。 | 黄敏芳 刘端勇 徐荣 赵海梅 | 2014 | 中华中医药学刊2014，32，11： | 3 |
| 4 | Curcumin ameliorates hippocampal neuron damage induced by human immunodeficiency virus-1显示文摘Our previous studies have shown that infection with the gp120 V3 loop can cause human immunodeficiency virus-1 associated neurocognitive disorders. Curcumin has been shown to improve these effects to some degree, but the precise mechanisms remain unknown. The present study analyzed the neuroprotective effect and mechanism of curcumin in relation to hippocampal neurons. Results showed that 1 nmol/L gp120 V3 loop suppressed the growth of synapses. After administration of 1 μmol/L curcumin, synaptic growth improved. Curcumin is neuroprotective against gp120 V3 loop-induced neuronal damage by inhibiting the activation of L-type calcium currents, relieving intracellular Ca2+ overload, promoting Bcl-2 expression, and inhibiting Bax activation. The effect of curcumin was identical to nimodipine, suggesting that curcumin has the same neuroprotective effects against gp120 V3 loop-induced neuronal damage. | Hongmei Tang Rui Pan Wenli Fang Yanyan Xing Dexi Chen Xiaobao Chen Yuanyuan Yu Junbing Wang Zheng Gong Guoyin Xiong Jun Dong | 2013 | Neural Regeneration Research2013，8，15： | 3 |
| 5 | 自噬对HIV-1gp120V3环介导的海马神经元L型钙离子通道电流的影响显示文摘目的:观察哺乳动物雷帕雷素靶蛋白(m TOR)依赖性自噬信号转导通路对HIV-1 gp120V3环介导的海马神经元L-型钙离子通道电流的影响。方法:取出生1 d内的乳鼠海马神经元原代培养7 d后用于实验。实验分为2个平行实验组,即空白对照组、gp120V3组、自噬阻断剂3-甲基腺嘌呤(3-MA)组和gp120V3+3-MA组;空白对照组、gp120V3组、自噬激动剂雷帕雷素(rapamycin)组和gp120V3+rapamycin组。以膜片钳技术记录海马神经元的L型钙离子通道电流。结果:gp120V3组及3-MA组与空白对照组比较,L型钙离子通道电流密度增大(P<0.05);gp120V3+3-MA组与gp120V3组比较,L-型钙离子通道电流密度增大(P<0.05);rapamycin组与空白对照组比较,L型钙离子通道电流密度减小(P<0.05);gp120V3+rapamycin组与gp120V3组比较,L型钙离子通道电流密度减小(P<0.05)。结论:从电生理角度证明,自噬可能参与了HIV-1gp120V3环介导的海马神经元L型钙离子通道电流的改变。 | 汪军兵 林丽清 江明亮 陆大祥 陈桂玲 行妍妍 董军 | 2014 | 中国病理生理杂志2014，30，11： | 0 |
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