Alantolactone,a sesquiterpene lactone,inhibits breast cancer growth by antiangiogenic activity via blocking VEGFR2 signaling

Alantolactone (ALA), a sesquiterpene lactone isolated from several medicinal plants such as Inula helenium, has been identified to have attractive anticancer activity. However, its role in the inhibition of angiogenesis during tumor development remains unclear. In this study, we found ALA can inhibit the proliferation, motility, migration, and tube formation of human umbilical vein endothelial cells. ALA also restrained angiogenesis in chick embryo chorioallantoic membrane and delayed the growth of human MDA‐MB‐231 breast cancer xenograft in mice through angiogenesis inhibition. Furthermore, ALA suppressed the phosphorylation of vascular endothelial growth factor receptor 2 and its downstream protein kinase including PLCγ1, FAK, Src, and Akt in endothelial cells. Taken together, the antiangiogenic activity of ALA and its molecular mechanism are identified for the first time, indicating that ALA may be a potential drug candidate or lead compound for antiangiogenic cancer therapy.     

帕金森病患者用药依从性管理策略的研究进展

本文就国内外帕金森病患者用药依从性的管理策略进行综述,旨在探索更综合、有效的管理方案,为临床护理工作提供参考,也为帕金森病患者用药管理的深入研究进行铺垫。     

成都市两城区部分成年男性吸烟者吸烟行为调查

目的 分析成都市成年男性吸烟者吸烟行为、吸烟量及其变化的影响因素。方法对成都市两城区320名成年男性吸烟者面对面问卷调查。采用描述性分析、t检验、χ²检验、单因素方差分析、Kruskal-Wails H秩和检验、累积比数logistic回归方法分析数据。结果 分析显示吸烟者更换卷烟后, 吸烟量增加(t=2.327, P=0.021), 焦油量降低(t=-11.251, P<0.001);累积比数logistic回归分析显示, 学历较低(OR=1.968, P=0.040)、收入较高(OR=2.053, P=0.043)、烟蒂较短(OR=2.366, P=0.010)、尼古丁高依赖(OR=7.143, P<0.001)者吸烟量更大。结论 更换卷烟的吸烟者更倾向选择低焦油卷烟;学历低、收入高、尼古丁高依赖的吸烟者是控烟健康教育、行为干预的重点人群。