Effects of dietary Trans-fat on biliary and fecal steroid excretion and serum lipoproteins in rats

Michihiro Sugano, Midori Watanabe, Mitsuko Kohno, Young J. Cho, Takashi Ide

研究成果: Contribution to journalArticle査読

15 被引用数 (Scopus)

抄録

Rats were fed cholesterol-free or cholesterol-enriched diets containing olive oil or partially hydrogenated corn oil at the 10% level for ca. 30 days (c-18:1, 77.0% in the former diet and c-18:1, 24.7% and t-18:1, 42.5% in the latter). The linoleic acid content of these fat diets was made equivalent (1.7 energy%). After feeding cholesterol-free diets, trans fat compared to cis fat showed(a) no untoward effects on growth parameters, (b) a reduction of serum cholesterol levels without influencing concentrations of serum apolipoproteins A-I, B and E, (c) no effects on the bile flow and the concentration of biliary cholesterol and bile acids, (d) an increasing trend of fecal excretion of neutral and acidic steroids, both in terms of mg/day and mg/g feces, and (e) rather equivocal change in the composition of fecal, but not biliary steroids. Similar response patterns were also observed when cholesterol-enriched diets were fed except for a decrease in serum apo B and an ineffectiveness to increase fecal acidic steroids. Together with the results obtained from experiments simultaneously performed with safflower oil and completely hydrogenated corn oil, it seems that the steroid metabolism can be specificallymodified by the geometry of dietary fats.

本文言語英語
ページ(範囲)375-381
ページ数7
ジャーナルLipids
18
5
DOI
出版ステータス出版済み - 5 1 1983

All Science Journal Classification (ASJC) codes

  • 生化学
  • 有機化学
  • 細胞生物学

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