Kale supplementation up-regulates HSP70 and suppresses cognitive decline in a mouse model of accelerated senescence

Kale supplementation up-regulates HSP70 and suppresses cognitive decline in a mouse model of accelerated senescence
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羽衣甘蓝补充剂上调 HSP70 并抑制加速衰老小鼠模型的认知能力下降

DOI:
10.1016/j.jff.2018.03.011
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发表时间:
2018
影响因子:
5.6
通讯作者:
Katayama Shigeru
Katayama Shigeru
中科院分区:
农林科学2区
文献类型:
--
作者:
Kushimoto Shoko;Uchibori Yuki;Yanai Shuichi;Makabe Hidefumi;Nakamura Soichiro;Katayama Shigeru

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饮食干预被认为是预防衰老的有效方法。在这里,我们研究了甘蓝汁(KJ)膳食补充剂延缓衰老加速小鼠8 (SAMP8)小鼠认知能力下降的能力。给SAMP8小鼠喂食含有0.8% KJ (w/w)的日粮或对照日粮,为期16 周,采用Morris水迷宫检测认知能力。与对照组相比,KJ改善了空间记忆和学习记忆,并抑制了血清8-羟基-2 ' -脱氧鸟苷和脑丙二醛的水平。此外,kj饲喂组热休克蛋白70 (HSP70)基因转录和蛋白表达均显著升高。1-Sinapoyl-2-feruloyl gentiobiose是KJ中影响HSP70表达的活性成分之一。这些发现表明,在SAMP8小鼠中,膳食补充羽衣甘蓝可以通过激活HSP70来抑制认知能力下降和年龄相关的氧化损伤。
Dietary interventions have been proposed as an effective way to prevent age-related senescence. Here, we investigated the ability of kale juice (KJ) dietary supplementation to delay cognitive decline in the senescence-accelerated mouse prone 8 (SAMP8) mouse. SAMP8 mice were fed a diet containing 0.8% (w/w) KJ or a control diet for 16 weeks, and cognitive performance was examined using the Morris water maze. KJ administration improved spatial and leaning memory as well as suppressed levels of serum 8-hydroxy-2′-deoxyguanosine and brain malondialdehyde with respect to the control group. Furthermore, the KJ-fed group showed a significant increase in the gene transcription and protein expression of heat shock protein 70 (HSP70). 1-Sinapoyl-2-feruloyl gentiobiose was identified as one of the active components of KJ affecting HSP70 expression. These findings suggest that dietary kale supplementation can suppress cognitive decline and age-related oxidative damage through the activation of HSP70 in SAMP8 mice.
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