Flavonoid-Like Components of Peanut Stem and Leaf Extract Promote Sleep by Decreasing Neuronal Excitability
文献类型： 外文期刊
作者： Guo, Rui 1 ; Shi, Ai-min 1 ; Deng, Lei 2 ; Li, Lei 3 ; Wang, Lie-chen 3 ; Oteng, Antwi-Boasiako 4 ; Wei, Meng-ping 5 ; Zh 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Food Sci & Technol, Key Lab Agroprod Proc, Minist Agr & Rural Affairs, Beijing 100193, Peoples R China
2.Wageningen Univ & Res, Human Nutr & Hlth Div, Nutr Metab & Genom Grp, NL-6708 WE Wageningen, Netherlands
3.Anhui Med Univ, Sch Basic Med Sci, Dept Physiol, Hefei 230031, Anhui, Peoples R China
4.Columbia Univ, Dept Pathol & Cell Biol, New York, NY USA
5.Capital Med Univ, Sch Basic Med Sci, Beijing Key Lab Neural Regenerat & Repair, Adv Innovat Ctr Human Brain Protect, Beijing 100069, Peoples R China
关键词： flavonoid; neuronal excitability; peanut stem and leaf; sleep; voltage-gated sodium and potassium channels
期刊名称：MOLECULAR NUTRITION & FOOD RESEARCH （ 影响因子：5.82； 五年影响因子：6.366 ）
ISSN： 1613-4125
年卷期：
页码：
收录情况： SCI
摘要： Scope Peanut stem and leaf (PSL), a traditional Chinese medicine, is widely used as a dietary supplement to improve sleep quality; however, the underlying mechanism is unclear. Here, the study aims to determine whether active compounds in PSL extract exert their effects by mediating neuronal excitability. Methods and Results Aqueous PSL extract (500 mg kg(-1) BW) increases the duration of total sleep (TS), slow wave sleep (SWS) and rapid eye movement sleep (REMS) in BALB/c mice after 7 and 14 continuous days of intragastric administration. Two PSL extract components with flavonoid-like structures: 4',7-di-O-methylnaringenin (DMN, 61 mu g kg(-1) BW) and 2'-O-methylisoliquiritigenin (MIL, 12 mu g kg(-1) BW), show similar effects on sleep in BALB/c mice. Moreover, incubation with DMN (50 mu M) and MIL (50 mu M) acutely reduces voltage-gated sodium and potassium currents and suppresses the firing of evoked action potential in mouse cortical neurons, indicating the inhibition on neuronal excitability. Meanwhile, RNA-seq analysis predicts the potential regulation of voltage-gated channels, which is according with the molecular docking simulation that both MIL and DMN can bind to voltage gated sodium channels 1.2 (Na(v)1.2). Conclusions DMN and MIL are the active ingredients of PSL that improve sleep quality, suggesting that PSL promotes sleep by regulating the excitability of neurons.
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