Dietary fructose causes defective insulin signalling and ceramide accumulation in the liver that can be reversed by gut microbiota modulation
Open accessAbstract
Objective : The link between metabolic derangement of the gut–2013liver–visceral white adipose tissue (v-WAT) axis and gut microbiota was investigated. Methods : Rats were fed a fructose-rich diet and treated with an antibiotic mix. Inflammation was measured in portal plasma, ileum, liver, and v-WAT, while insulin signalling was analysed by measuring levels of phosphorylated kinase Akt. The function and oxidative status of hepatic mitochondria and caecal microbiota composition were also evaluated. Results : Ileal inflammation, increase in plasma transaminases, plasma peroxidised lipids, portal concentrations of tumour necrosis factor alpha, lipopolysaccharide, and non-esterified fatty acids, were induced by fructose and were reversed by antibiotic. The increased hepatic ceramide content, inflammation and decreased insulin signaling in liver and v-WAT induced by fructose was reversed by antibiotic. Antibiotic also blunted the increase in hepatic mitochondrial efficiency and oxidative damage of rats fed fructose-rich diet. Three genera, Coprococcus, Ruminococcus, and Clostridium, significantly increased, while the Clostridiaceae family significantly decreased in rats fed a fructose-rich diet, and antibiotic abolished these variations Conclusions : When gut microbiota modulation by fructose is prevented by antibiotic, inflammatory flow from the gut to the liver and v-WAT are reversed.
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Mice fed a fructose-rich diet demonstrate significant increases in Coprococcus, Ruminococcus and Clostridium, and a reduction in Clostridiaceae family.
“Mice fed a fructose-rich diet demonstrated significant increases in Coprococcus, Ruminococcus and Clostridium, and a reduction in Clostridiaceae family (Crescenzo et al., 2017).”
From The Microbiota-Gut-Brain Axis (2019) · cites this paper as Crescenzo et al., 2017
The Results (Caecal microbiota) report increased Coprococcus and Ruminococcus in fructose-fed rats, but the opposite of the claimed directions for the other groups: Clostridium decreased and Clostridiaceae increased. The Methods (Animals and treatments) identify the animals as rats, not mice. (LLM, conf=0.90)
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Spruss, A., & Bergheim, I. (2009) · The Journal of Nutritional Biochemistry · doi:10.1016/j.jnutbio.2009.05.006 · Cited by 162 · see citing works
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Diet-induced gut dysbiosis and inflammation: Key drivers of obesity-driven NASH
Kang, G. G., Trevaskis, N. L., Murphy, A. J., & Febbraio, M. A. (2023) · iScience · doi:10.1016/j.isci.2022.105905 · Cited by 94 · see citing works
- Authors
- Crescenzo, R., Mazzoli, A., Di Luccia, B., Bianco, F., Cancelliere, R., Cigliano, L., Liverini, G., Baccigalupi, L., & Iossa, S.
- Affiliations
- University of Naples Federico II (IT)
- Department of Biology, Federico II University of Naples, Naples, Italy
- Corresponding author
- Iossa, Susanna
- Venue
- Food & Nutrition Research
- Publisher
- SNF Swedish Nutrition Foundation
- Published
- 2017-01
- Volume
- 61
- Issue
- 1
- Pages
- 1331657
- ISSN
- 1654-661X (ISSN-L)
- 1654-6628
- PMC
- PMC5475320
- OpenAlex
- W2622697709
- Cited by
- 63
- References
- 1
- Citations by year
- 2026: 1 · 2025: 6 · 2024: 5 · 2023: 3 · 2022: 11 · 2021: 9 · 2020: 9 · 2019: 8 · 2018: 9 · 2017: 2
- FWCI
- 3.13
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- cc-by
- Locations
- Food & Nutrition Research (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diet, Metabolism, and Disease
- Health Sciences › Medicine › Epidemiology › Liver Disease Diagnosis and Treatment
- Keywords
- dietary fructose, gut-liver axis, visceral white adipose tissue, gut microbiota, antibiotic-induced dysbiosis, insulin signaling, Akt phosphorylation, liver inflammation, mitochondrial oxidative damage, ileal inflammation, Clostridiaceae, Ruminococcus, Coprococcus, lipopolysaccharide, TNF-α, free fatty acids
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