Bifidobacterium longum GL001 alleviates rat intestinal ischemia-reperfusion injury by modulating gut microbiota composition and intestinal tissue metabolism

Intestinal ischemia-reperfusion (IIR) injury leads to inflammation and oxidative stress, resulting in intestinal barrier damage. Probiotics, due to their anti-inflammatory and antioxidant properties, are considered for potential intervention to protect the intestinal barrier during IIR injury. Bifidobacterium longum, a recognized probiotic, has targeted effects on IIR injury, but its mechanisms of action are not yet understood. To investigate the mechanism of Bifidobacterium longum intervention in IIR injury, we conducted a study using a rat IIR injury model. The results showed that Bifidobacterium longum could alleviate inflammation and oxidative stress induced by IIR injury by suppressing the NF-κB inflammatory pathway and activating the Keap1/Nrf2 signaling pathway. Bifidobacterium longum GL001 also increased the abundance of the gut microbiota such as Oscillospira, Ouminococcus, Corynebacterium, Lactobacillus, and Akkermansia, while decreasing the abundance of Allobaculum, [Prevotella], Bacteroidaceae, Bacteroides, Shigella, and Helicobacter. In addition, Bifidobacterium longum GL001 reversed the changes in amino acids and bile acids induced by IIR injury and reduced the levels of DL-cysteine, an oxidative stress marker, in intestinal tissue. Spearman correlation analysis showed that L-cystine was positively correlated with Lactobacillus and negatively correlated with Shigella, while DL-proline was positively correlated with Akkermansia. Moreover, bile acids, cholic acid and lithocholic acid, were negatively correlated with Lactobacillus and positively correlated with Shigella. Therefore, Bifidobacterium longum GL001 may alleviate IIR injury by regulating the gut microbiota to modulate intestinal lipid peroxidation and bile acid metabolism.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:15

Enthalten in:

Food & function - 15(2024), 7 vom: 02. Apr., Seite 3653-3668

Sprache:

Englisch

Beteiligte Personen:

Tang, Jilang [VerfasserIn]
Zhao, Mingchao [VerfasserIn]
Miao, Xue [VerfasserIn]
Chen, Hong [VerfasserIn]
Zhao, Binger [VerfasserIn]
Wang, Yingying [VerfasserIn]
Guo, Yingchao [VerfasserIn]
Wang, Tiantian [VerfasserIn]
Cheng, Xin [VerfasserIn]
Ruan, Hongri [VerfasserIn]
Zhang, Jiantao [VerfasserIn]

Links:

Volltext

Themen:

Journal Article
Kelch-Like ECH-Associated Protein 1
NF-E2-Related Factor 2

Anmerkungen:

Date Completed 03.04.2024

Date Revised 03.04.2024

published: Electronic

Citation Status MEDLINE

doi:

10.1039/d3fo03669c

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369775821