Pu-erh Tea Ameliorates Atherosclerosis Associated with Promoting Macrophage Apoptosis by Reducing NF-κB Activation in ApoE Knockout Mice.

Pu-erh Tea Ameliorates Atherosclerosis Associated with Promoting Macrophage Apoptosis by Reducing NF-κB Activation in ApoE Knockout Mice.
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普洱茶通过减少 ApoE 基因敲除小鼠中 NF-κB 的激活来改善与促进巨噬细胞凋亡相关的动脉粥样硬化

DOI:
10.1155/2018/3197829
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发表时间:
2018
影响因子:
--
通讯作者:
Yuan Z
Yuan Z
中科院分区:
生物学2区
文献类型:
--
作者:
Xiao Y;He M;Liang X;She J;He L;Liu Y;Zou J;Yuan Z

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我们探讨了饮用普洱茶是否能改善载脂蛋白E缺陷(ApoE-−/−)小鼠的动脉粥样硬化及其可能的机制。我们的数据显示,饮用普洱茶显著减少了早期脂肪条纹的形成和晚期纤维脂肪斑块的大小。此外,斑块中炎性巨噬细胞的平均比例降低,而凋亡巨噬细胞的数量显著增加。腹腔巨噬细胞中的NF-κB活性较对照组降低75.6%,与IL-6、IL-12和α的表达水平相近。茶叶提取物通过降低核因子-κB的活性,减少炎性细胞因子的表达,增加RAW264.7细胞的凋亡率。综上所述,普洱茶通过降低动脉粥样硬化斑块中核因子-κB的活化,促进巨噬细胞的凋亡,从而减轻慢性炎症状态,从而减轻动脉粥样硬化的进程。
We explored whether pu-erh tea consumption ameliorates atherosclerosis and the possible mechanism for its effects in apolipoprotein E-deficient (ApoE−/−) mice. Our data showed that pu-erh tea consumption markedly reduced early fatty streak formation and the advanced fibrofatty plaque sizes. Additionally, the mean proportion of inflammatory macrophages in the plaque decreased, and the number of apoptotic macrophages increased significantly. NF-κB activity in peritoneal macrophages decreased by 75.6% compared to the controls, similar with the levels of IL-6, IL-12, and TNF-α expression. The tea extract increased the apoptosis of RAW264.7 cells by decreasing NF-κB activation and reducing the inflammatory cytokine expression. In conclusion, pu-erh tea ameliorates atherosclerosis progress by alleviating the chronic inflammatory state by reducing NF-κB activation and promoting macrophage apoptosis in atherosclerotic plaques.
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