Effect of dietary oils on the production of n-3 and n-6 metabolites of leukocyte 5-lipoxygenase in five rat strains

  • Leslie G. Cleland
  • , Michael J. James
  • , Robert A. Gibson
  • , Joanna S. Hawkes
  • , W. Henry Betts

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)

Abstract

We examined the influence of various dietary oils, including linseed and fish oil on the relative rates of leukotriene B4 (LTB4) and LTB5 production by rat peritoneal exudate cells in five rat strains. While there was an association between the membrane phospholipid levels of the fatty acid precursors (arachidonic acid (AA) and eicosapentaenoic acid (EPA)) and the rate of synthesis of their respective 5-lipoxygenase products (LTB4 and LTB5), the rate of LTB4 synthesis was a combined function of both AA and EPA levels. We observed a strong linear relationship (correlation coefficient = 0.99) between the ratio of EPA/AA in the cell membrane phospholipids and the ratio of LTB5/LTB4 produced by these cells in vitro; this association was independent of genetic (strain) variability and was independent of the source of EPA (dietary EPA or EPA endogenously synthesized from dietary α-linolenic acid).

Original languageEnglish
Pages (from-to)253-258
Number of pages6
JournalBiochimica et Biophysica Acta (BBA)/Lipids and Lipid Metabolism
Volume1043
Issue number3
DOIs
Publication statusPublished or Issued - 17 Apr 1990

Keywords

  • (Rat)
  • 5-Lipoxygenase
  • Fatty acid
  • Icosapentaenoic acid
  • Leukotriene
  • Oil

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Endocrinology

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