Changes of hepatic lipid mediators associated with intake of high-fat diet for 12 weeks in endotoxemic rats using LC-ESI-MS/MS

Aya Nishiokada, Makoto Miyoshi, Mayu Fujiwara, Michiko Aoyama-Ishikawa, Noriaki Maeshige, Michiko Takahashi, Yasuhiro Hamada, Yu Usami, Mie Honda, Makoto Arita, Makoto Usami

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Background & aims: It has recently been reported that anti-inflammatory lipid mediators are increased in the late phase of acute inflammation, whereas proinflammatory lipid mediators are regulated at the initiation of inflammation. The purpose of this study was to evaluate changes of hepatic lipid mediators due to high-fat diet (HFD) feeding in endotoxemic rats. Methods: Male Wistar rats were fed either HFD or control diet for 12 weeks, and were then killed 0, 1.5, and 6h after lipopolysaccharide (LPS) injection. Analyses included lipidomics assessment of mediators using liquid chromatography-electrospray ionization/multi-stage mass spectrometry; measuring expression of hepatic polyunsaturated fatty acid (PUFA)-oxidizing enzyme, tumor necrosis factor (TNF)-α, interleukin (IL)-6, and inducible nitric oxide synthase mRNA levels; blood biochemical tests; and liver histology. Results: HFD feeding worsened liver injury, increased expression of TNF-α and IL-6 mRNA, and increased oxidative stress after LPS injection. PUFA-oxidizing enzymes were higher in HFD-fed rats after LPS injection. The proinflammatory prostaglandin (PG)E2 and thromboxane B2 were increased 1.5h after LPS injection, and had decreased by 6h in HFD-fed rats. In contrast, potent pro-resolving resolvins derived from eicosapentaenoic acid and docosahexaenoic acid were not detected, but anti-inflammatory epoxyeicosatrienoic acids, lipoxin A4, and 15-deoxy-PGJ2 were increased after LPS injection in HFD-fed rats. Conclusions: HFD feeding for 12 weeks enhanced proinflammatory lipid mediators 1.5h after LPS injection suggesting relation to liver injury.

Original languageEnglish
Pages (from-to)685-693
Number of pages9
JournalClinical Nutrition
Volume34
Issue number4
DOIs
Publication statusPublished - 2015 Aug 1
Externally publishedYes

Fingerprint

High Fat Diet
Lipopolysaccharides
Lipids
Liver
Injections
Unsaturated Fatty Acids
Interleukin-6
Anti-Inflammatory Agents
Tumor Necrosis Factor-alpha
Inflammation
Thromboxane B2
Messenger RNA
Eicosapentaenoic Acid
Docosahexaenoic Acids
Wounds and Injuries
Hematologic Tests
Nitric Oxide Synthase Type II
Enzymes
Dinoprostone
Liquid Chromatography

Keywords

  • High-fat diet
  • Lard
  • Lipid mediator
  • Lipidomics
  • Lipopolysaccharide
  • Sepsis

ASJC Scopus subject areas

  • Critical Care and Intensive Care Medicine
  • Nutrition and Dietetics

Cite this

Nishiokada, A., Miyoshi, M., Fujiwara, M., Aoyama-Ishikawa, M., Maeshige, N., Takahashi, M., ... Usami, M. (2015). Changes of hepatic lipid mediators associated with intake of high-fat diet for 12 weeks in endotoxemic rats using LC-ESI-MS/MS. Clinical Nutrition, 34(4), 685-693. https://doi.org/10.1016/j.clnu.2014.07.013

Changes of hepatic lipid mediators associated with intake of high-fat diet for 12 weeks in endotoxemic rats using LC-ESI-MS/MS. / Nishiokada, Aya; Miyoshi, Makoto; Fujiwara, Mayu; Aoyama-Ishikawa, Michiko; Maeshige, Noriaki; Takahashi, Michiko; Hamada, Yasuhiro; Usami, Yu; Honda, Mie; Arita, Makoto; Usami, Makoto.

In: Clinical Nutrition, Vol. 34, No. 4, 01.08.2015, p. 685-693.

Research output: Contribution to journalArticle

Nishiokada, A, Miyoshi, M, Fujiwara, M, Aoyama-Ishikawa, M, Maeshige, N, Takahashi, M, Hamada, Y, Usami, Y, Honda, M, Arita, M & Usami, M 2015, 'Changes of hepatic lipid mediators associated with intake of high-fat diet for 12 weeks in endotoxemic rats using LC-ESI-MS/MS', Clinical Nutrition, vol. 34, no. 4, pp. 685-693. https://doi.org/10.1016/j.clnu.2014.07.013
Nishiokada, Aya ; Miyoshi, Makoto ; Fujiwara, Mayu ; Aoyama-Ishikawa, Michiko ; Maeshige, Noriaki ; Takahashi, Michiko ; Hamada, Yasuhiro ; Usami, Yu ; Honda, Mie ; Arita, Makoto ; Usami, Makoto. / Changes of hepatic lipid mediators associated with intake of high-fat diet for 12 weeks in endotoxemic rats using LC-ESI-MS/MS. In: Clinical Nutrition. 2015 ; Vol. 34, No. 4. pp. 685-693.
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AU - Aoyama-Ishikawa, Michiko

AU - Maeshige, Noriaki

AU - Takahashi, Michiko

AU - Hamada, Yasuhiro

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AU - Honda, Mie

AU - Arita, Makoto

AU - Usami, Makoto

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KW - Lard

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KW - Lipopolysaccharide

KW - Sepsis

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