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JACC:海藻糖通过激活自噬保护心梗后的心脏

2018-05-08 MedSci MedSci原创

海藻糖(TRE)是一种由低等生物合成的非还原性二糖,其可以通过激活自噬来保护处于各种应激状态下的细胞。本研究的目的旨在评估TRE对慢性缺血性重塑模型小鼠的影响。本研究对野生型(WT)小鼠和beclin 1+/-转基因小鼠进行永久性左前降支(LAD)冠脉结扎,之后对其进行安慰剂或者TRE处理,4周后,通过超声心动图、组织学检测、重量检测、血液动力学检测和生化检测对小鼠进行评估。分析结果显示,与接受安

海藻糖(TRE)是一种由低等生物合成的非还原性二糖,其可以通过激活自噬来保护处于各种应激状态下的细胞。本研究的目的旨在评估TRE对慢性缺血性重塑模型小鼠的影响。

本研究对野生型(WT)小鼠和beclin 1+/-转基因小鼠进行永久性左前降支(LAD)冠脉结扎,之后对其进行安慰剂或者TRE处理,4周后,通过超声心动图、组织学检测、重量检测、血液动力学检测和生化检测对小鼠进行评估。分析结果显示,与接受安慰剂小鼠相比,TRE处理组小鼠的左室膨大程度更低,左室功能更佳。TRE可以增加心梗后4周心脏LC3-II的水平,提示其可以在体内激活心脏的自噬水平。此外,在TRE处理组的小鼠中,WT的左室功能、肺充血、心肌重塑、凋亡和纤维化的改善在beclin 1+/-小鼠中均明显受限,提示TRE是通过激活自噬水平起到心脏保护作用的。

研究结果显示,海藻糖可以通过激活自噬对心梗后的心脏起到保护作用。


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    2019-01-28 hbwxf
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    2019-01-22 lfyang
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    2018-05-10 一叶知秋
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    2018-05-08 smartxiuxiu

    感觉保健品又找到了商机

    0

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