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Shi, Zhen; Fang, Zhi-Yuan; Gao, Xin-Xing; Yu, Hao; Zhu, Yi-Wei; Ouyang, Hui-Lin; Song, Yu-Xiang; Du, Xi-Liang; Wang, Zhe; Li, Xin-Wei; Liu, Guo-Wen
Food & function, 07/2021, Letnik: 12, Številka: 13Journal Article
Nuciferine (NF) has received extensive attention due to its medicinal value in the treatment of metabolic diseases, such as obesity; however, to date, the effects of NF on obesity-related intestinal permeability, autophagy and the gut microbiota have not been investigated. Herein, C57BL/6J mice were fed either a chow or a high-fat diet (HFD) with or without NF for 8 weeks. The results showed that NF supplement reduced weight gain, fat accumulation and intestinal permeability in the HFD mice accompanied by improved autophagy. Subsequently, an in vitro experiment was performed using Caco-2 and HT-29 cells, which showed that NF supplement not only promoted the formation of autophagosomes and autophagolysosomes, but also alleviated LPS-increased intestinal permeability. Importantly, NF supplement protected from LPS-induced paracellular permeability impairment after the administration of autophagy-related gene (Atg) 5 small-interfering RNA (siRNA). These results demonstrate that NF exerts beneficial effects on the intestinal permeability by improving autophagy. Furthermore, we also found that NF supplement lowered the abundance of Butyricimonas and increased the abundance of Akkermansia, an anti-obesity bacterium. Thus, overall, we demonstrated that NF supplement confers reduced intestinal permeability by improving autophagy and alters the composition of the gut microbiota in HFD-fed mice, thereby producing an anti-obesity effect.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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