Cited by 47Gut microbiota and healthDrug Transport and Resistance MechanismsCholesterol and Lipid Metabolism

Effects of bile acid modulation by dietary fat, cholecystectomy, and bile acid Sequestrant on energy, glucose, and lipid metabolism and gut microbiota in mice

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Park, Sunmin, Zhang, Ting, Yue, Yu, Wu, Xuangao·2022·International Journal of Molecular Sciences

Abstract

Bile acid metabolism, involved with the digestion and absorption of nutrients in the gut, is linked to the gut microbiota community, greatly impacting the host’s metabolism. We examined the hypothesis that the modulation of bile acid metabolism by dietary fat contents, gallbladder removal (GBX; cholecystectomy), and bile acid sequestrant (BAS; cholestyramine) treatment could alter energy, glucose, and lipid metabolism through the changes in the gut microbiota. Mice were randomly assigned to the following six groups: (1) Sham GBX surgery (Sham) + low fat/high carbohydrate diet (LFD), (2) Sham + high fat diet (HFD), (3) Sham + HFD + BAS, (4) GBX + LFD, (5) GBX + HFD, and (6) GBX + HFD + BAS. BAS groups received 2% cholestyramine. After an 8-week intervention, energy, glucose, and lipid metabolism, and the gut microbiota community were measured. HFD groups exhibited higher body weight gain than LFD, and GBX increased the weight gain comped to Sham groups regardless of BAS in HFD (p < 0.05). Homeostatic model assessment for insulin resistance (HOMA-IR) was higher in HFD than LFD, and GBX increased it regardless of BAS. Serum lipid profiles were worsened in GBX + HFD compared to Sham + LFD, whereas BAS alleviated them, except for serum HDL cholesterol. Hepatic tumor-necrosis-factor-α (TNF-α) mRNA expression and lipid peroxide contents increased with GBX and BAS treatment compared to Sham and no BAS treatment (p < 0.05). Hepatic mRNA expression of sterol regulatory element-binding transcription factor 1c (SREBP1c) and peroxisome proliferator-activated receptor gamma (PPAR-γ) exhibited the same trend as that of tumor necrosis factor-α (TNF-α). The α-diversity of gut bacteria decreased in GBX + HFD and increased in GBX + HFD + BAS. Akkermentia, Dehalobacterium, SMB53, and Megamonas were high in the Sham + LFD, and Veillonella and Streptococcus were rich in the Sham + HFD, while Oscillospira and Olsenella were high in Sham + HFD + BAS (p < 0.05). GBX + LFD increased Lactobacillus and Sutterella while GBX + HFD + BAS elevated Clostridium, Alistipes, Blautia, Eubacterium, and Coprobacillus (p < 0.05). In conclusion, the modulation of bile acid metabolism influences energy, glucose, and lipid metabolisms, and it might be linked to changes in the gut microbiota by bile acid metabolism modulation.

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  • Sutterella is intricately involved in bile acid metabolism, thereby regulating disorders of lipid metabolism.

    “Sutterella, a Gram-negative bacterium, is intricately involved in bile acid metabolism, thereby regulating disorders of lipid metabolism (Park et al., 2022).”

    From Lactiplantibacillus plantarum N4 ameliorates lipid metabolism and gut microbiota structure in high fat diet-fed rats (2024) · cites this paper as Park et al., 2022

    The Results (§2.5, page unavailable) report increased Sutterella abundance in cholecystectomized mice fed a low-fat diet. The Discussion (§3, page unavailable) links bile-acid modulation, gut-microbiota changes, and lipid metabolism more broadly, but does not show that Sutterella itself metabolizes bile acids or regulates lipid-metabolism disorders. The passages also do not identify it as Gram-negative. (LLM, conf=0.86)

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Authors
Park, S., Zhang, T., Yue, Y., & Wu, X.
Affiliations
  • Hoseo University (KR)
  • Obesity/Diabetes Research Center, Department of Food and Nutrition, Hoseo University, Asan 31499, Korea
Corresponding author
Park, Sunmin
Venue
International Journal of Molecular Sciences
Publisher
MDPI AG
Published
2022-05-25
Volume
23
Issue
11
Pages
5935
ISSN
1422-0067 (ISSN-L)
OpenAlex
W4281486453
Cited by
47
References
42
Citations by year
2026: 6 · 2025: 18 · 2024: 14 · 2023: 4 · 2022: 5
FWCI
3.35
Type
journal article
Language
en
Open access
Locations
  • International Journal of Molecular Sciences (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
National Research Foundation of Korea (2019R1A2C1007203)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Oncology › Drug Transport and Resistance Mechanisms
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
Keywords
bile acid metabolism, cholecystectomy, bile acid sequestrants, cholestyramine, dietary fat, high-fat diet, gut microbiota, energy metabolism, glucose metabolism, lipid metabolism, insulin resistance, serum lipids, liver inflammation, SREBP-1c, PPARγ, Akkermansia, Veillonella, obesity, gut-liver axis
MeSH terms
Gastrointestinal Microbiome, Animals, Hypolipidemic Agents, Bile Acids and Salts, Cholecystectomy, Cholestyramine Resin, Dietary Fats, Glucose, Liver, Mice, Inbred C57BL, RNA, Messenger, Tumor Necrosis Factor-alpha, Weight Gain, Lipid Metabolism, Mice, Diet, High-Fat

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