4.8 Article

Consumption of Butylated Starch Alleviates the Chronic Restraint Stress-Induced Neurobehavioral and Gut Barrier Deficits Through Reshaping the Gut Microbiota

Journal

FRONTIERS IN IMMUNOLOGY
Volume 12, Issue -, Pages -

Publisher

FRONTIERS MEDIA SA
DOI: 10.3389/fimmu.2021.755481

Keywords

butyrate; starch; depression; gut barrier; inflammation

Categories

Funding

  1. National Natural Science Foundation of China [31972052, 32021005, 31820103010]
  2. Fundamental Research Funds for the Central Universities [JUSRP22006, JUSRP51501]
  3. China National Postdoctoral Program for Innovative Talents [BX2021114]
  4. China Postdoctoral Science Foundation [2021M691290]
  5. Postdoctoral Science Foundation of Jiangsu Province [2021K127B]
  6. Program of Collaborative Innovation Centre of Food Safety and Quality Control in Jiangsu Province

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The beneficial effect of short-chain fatty acids (SCFAs) on host health, especially in influencing psychological function, has been highlighted in this study. The acetylated-, butylated-, and isobutylated-starch could attenuate depression-like behaviors and reduce colonic permeability by increasing tight junction proteins gene expression and reducing inflammatory cytokines levels. The neurological and immunological benefits of butylated starch may be derived from gut microbiome modifications, suggesting potential for novel food or dietary supplements for improving mental health.
The beneficial effect of short-chain fatty acids (SCFAs) on host health has been well recognized based on the booming knowledge from gut microbiome research. The role of SCFA in influencing psychological function is highlighted in recent years but has not been fully elucidated. In this study, the SCFA-acylated starches were used to accomplish a sizeable intestine-targeted release of the SCFAs, and the neurobehavioral, immunological, and microbial effects were further investigated. Acetylated-, butylated-, and isobutylated-starch could attenuate the depression-like behaviors and excessive corticosterone production in chronically stressed mice. Butylated- starch significantly reduced the colonic permeability via increasing the tight junction proteins (including ZO-1, Claudin, and Occludin) gene expression and reduced the level of the inflammatory cytokines (including IL-1 beta and IL-6). The butylated starch's neurological and immunological benefits may be derived from the gut microbiome modifications, including normalizing the abundance of certain beneficial microbes (Odoribacter and Oscillibacter) and metabolomic pathways (Tryptophan synthesis and Inositol degradation). The present findings further validate the brain-beneficial effect of butyrate and offer novel guidance for developing novel food or dietary supplements for improving mental health.

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