Cited by 94Dietary Effects on HealthImmune Response and InflammationGenetics, Aging, and Longevity in Model Organisms

Inflammatory responses to lipopolysaccharide are suppressed in 40% energy-restricted mice

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Matsuzaki, Junko, Kuwamura, Mitsuru, Yamaji, Ryoichi, Inui, Hiroshi, Nakano, Yoshihisa·2001·The Journal of Nutrition

Abstract

To elucidate the suppressive effects of energy restriction on the inflammatory responses to lipopolysaccharide (LPS), mice were divided into a control group (fed 5.0 g diet/d; 71 kJ/d) and a 40% energy-restricted group (fed 3.0 g diet/d; 43 kJ/d) at 8-wk of age. Four weeks later, 25 microg of LPS was intraperitoneally injected. After the LPS injection, interleukin-1beta, interleukin-6 and tumor necrosis factor-alpha were elevated in serums in the 40% energy-restricted mice and in the controls, but the extent of the elevation was significantly lower in the restricted group. The LPS-induced expression of inducible nitric oxide synthase in the liver was significantly suppressed by the energy restriction. In addition, the LPS-induced elevations of serum aspartate and alanine aminotransferase activities, which are indexes of hepatic injury, were also significantly attenuated in the restricted group. Moreover, the extent of LPS-induced alterations in hepatic structure was less in the restricted mice than in controls. Serum corticosterone level in the restricted mice was higher than that in the controls before LPS treatment (P < 0.05). Furthermore, after LPS injection, the significantly higher level of corticosterone was maintained in the restricted mice, although the LPS treatment significantly enhanced the level even in the control group. These results suggest that the extreme inflammatory responses to endotoxin are prevented in the 40% energy-restricted mice, and corticosterone participates in the preventive effects.

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Crossref · 10.1093/jn/131.8.2139

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Authors
Matsuzaki, J., Kuwamura, M., Yamaji, R., Inui, H., & Nakano, Y.
Affiliations
Osaka Prefecture University (JP)
Corresponding author
Inui, Hiroshi
Venue
The Journal of Nutrition
Publisher
Elsevier BV
Published
2001-08
Volume
131
Issue
8
Pages
2139-2144
ISSN
0022-3166 (ISSN-L)
OpenAlex
W2165293882
Cited by
94
References
41
Citations by year
2025: 3 · 2024: 6 · 2023: 4 · 2022: 2 · 2021: 3 · 2020: 4 · 2019: 6 · 2018: 2 · 2017: 4 · 2016: 6 · 2015: 6 · 2014: 7 · 2013: 5 · 2012: 5
FWCI
0.39
Type
journal article
Language
en
Open access
Locations
  • Journal of Nutrition (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Dietary Effects on Health
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
Keywords
caloric restriction, lipopolysaccharide, endotoxin-induced inflammation, corticosterone, IL-1β, interleukin-6, TNF-α, inducible nitric oxide synthase, liver injury, transaminases
MeSH terms
Animals, Anti-Inflammatory Agents, Energy Intake, Corticosterone, Food Deprivation, Immunohistochemistry, Injections, Intraperitoneal, Interleukin-1, Kinetics, Lipopolysaccharides, Liver, Male, Mice, Inbred BALB C, Random Allocation, Tumor Necrosis Factor-alpha, Interleukin-6, Nitric Oxide Synthase, Mice

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