Acanthopanax senticosus extract alleviates radiation‐induced learning and memory impairment based on neurotransmitter‐gut microbiota communication

Author:

Song Chen123,Yin Yishu123,Qin Yue13,Li Tianzhu4,Zeng Deyong123,Ju Ting123,Duan Fangyuan123,Zhang Yingchun13,Lu Weihong13ORCID

Affiliation:

1. School of Medicine and Health Harbin Institute of Technology 150001 Harbin China

2. School of Chemistry and Chemical Engineering Harbin Institute of Technology 150001 Harbin China

3. National and Local Joint Engineering Laboratory for Synthesis, Transformation and Separation of Extreme Environmental Nutrients Harbin Institute of Technology 150001 Harbin China

4. ZhenBaoDao Pharmaceutical Co., Ltd 150040 Harbin China

Abstract

AbstractBackgroundAcanthopanax senticosus (AS) is a medicinal and food plant with many physiological functions, especially nerve protection. Its extract has many functional components, including polysaccharides, flavonoids, saponins, and amino acids. Our previous study indicated that AS extract protected against nerve damage caused by radiation. However, little is known about the gut‐brain axis mechanism of AS and its impact on radiation‐induced learning and memory impairment.MethodIn 60Co‐γ ray‐irradiated mice, we investigated the changes in behavior, neurotransmitters and gut microbiota after different days of administration of AS extract as a dietary supplement.ResultsThe AS extract improved learning and memory ability in mice, and the neurotransmitter levels in the hippocampus and colon started to change from the 7th day, which accompanied changes of the gut microbiota, a decreased abundance of Helicobacter on the 7th day and an increased abundance of Lactobacillus on the 28th day. Among the marker bacteria, Ruminococcus and Clostridiales were associated with 5‐HT synthesis, and Streptococcus were associated with 5‐HT and ACH synthesis. In addition, the AS extract increased the tight junction protein, inhibited inflammation levels in colon, and even increased the relative protein expression of BDNF and NF‐κB and decreased the relative protein expression of IκBα in the hippocampus of irradiated mice.ConclusionThese results will lay the foundation for further study on the mechanism of the gut‐brain axis of AS in preventing radiation‐induced learning and memory impairment.

Publisher

Wiley

Subject

Pharmacology (medical),Physiology (medical),Psychiatry and Mental health,Pharmacology

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