范例详解
Biomed Pharmacother. 2024 Jun;175:116689.
苏州大学的实验人员在上述论文中发现Nicotinamide ribose(烟酰胺核糖)可在大鼠心肌缺血再灌注(I/R)损伤模型中起到保护作用,并且利用AbMole提供的SIRT3抑制剂
3-TYP(3-(1H-1,2,3-triazol-4-yl) pyridine,AbMole,M8978),证实了Nicotinamide ribose的心脏保护作用主要依赖于SIRT3-SOD2轴抑制线粒体氧化应激。在该实验中,科研人员发现200 mg/kg的Nicotinamide ribose的预处理显著减少大鼠的心肌梗塞面积,降低了血清中CK-MB和LDH水平,并改善大鼠心脏功能。同时,在体外模型中,0.5 mM 的Nicotinamide ribose也有效提高了H9c2细胞在OGD/R(缺氧和葡萄糖剥夺/再灌注)期间的存活率并减少了乳酸脱氢酶的释放[5]。而3-TYP可阻断Nicotinamide ribose的上述生物学效应,证实后者的活性与SIRT3有关。
2014年,AbMole的两款抑制剂分别被西班牙国家心血管研究中心和美国哥伦比亚大学用于动物体内实验,相关科研成果发表于顶刊 Nature 和 Nature Medicine。
Inhibition of SIRT3 deacetylase activity reversed the cardioprotective effects of NR during myocardial I/R injury[5].
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参考文献及鸣谢
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[4] H. Xu, R. Feng, M. L. Ye, et al., Multiple Enzymes Expressed by the Gut Microbiota Can Transform Typhaneoside and Are Associated with Improving Hyperlipidemia, Advanced science (Weinheim, Baden-Wurttemberg, Germany) 12(10) (2025) e2411770.
[5] K. Zhao, J. Tang, H. Xie, et al., Nicotinamide riboside attenuates myocardial ischemia-reperfusion injury via regulating SIRT3/SOD2 signaling pathway, Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie 175 (2024) 116689.