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Eicosanoid production, thrombogenic ratio, and serum and LDL peroxides in normo- and hypercholesterolaemic post-menopausal women consuming two oleic acid-rich diets with different content of minor components.
Br J Nutr. 2001 Jan; 85(1):41-7.BJ

Abstract

The present paper compares the effects of two monounsaturated oils, extra virgin olive oil (EVOO) and high-oleic acid sunflower oil (HOSO), on serum and LDL peroxides, eicosanoid production and the thrombogenic ratio (thromboxane (TX) B2:6-keto-prostaglandin F1alpha) in fourteen non-obese post-menopausal women. The subjects, mean age 63 (SD 11) years, were assigned to two consecutive oleic acid-rich 28 d dietary periods. EVOO and HOSO represented 62 % of the total lipid intake and were used as the only culinary fat during the first and second dietary periods respectively. Serum peroxides, plasma alpha-tocopherol and TXB2 levels in stimulated platelet-rich plasma (PRP-TXB2) were significantly higher (P < 0.01, P < 0.001, and P < 0.05, respectively) after the HOSO diet than after the EVOO diet. The relationship between the serum cholesterol level (< 6.21 mmol/l or > or = 6.21 mmol/l) and the type of dietary oil on eicosanoids, peroxides and alpha-tocopherol were evaluated by two-way ANOVA. Dietary oil significantly affected (P < 0.05) the PRP-TXB2 level, whereas serum and LDL peroxides were significantly affected (P < 0.001 and P < 0.01, respectively) by the serum cholesterol level. The plasma alpha-tocopherol level was significantly affected by the serum cholesterol level and the type of dietary oil (both P < 0.001). No significant relationships were found between serum cholesterol levels, serum peroxide or LDL peroxide levels, plasma alpha-tocopherol concentrations or alpha-tocopherol intakes with eicosanoid production or the thrombogenic ratio due to dietary changes. However, in spite of their higher alpha-tocopherol levels, hypercholesterolaemic subjects showed increased peroxidation in serum and LDL in comparison with normocholesterolaemic subjects on the HOSO diet in comparison with the EVOO diet. These findings suggest that differences in the type of minor compounds, as well as in the concentration of linoleic acid, in both these monounsaturated oils may play an important role in modulating eicosanoid production and lipoprotein peroxidation when they constitute a large proportion of the diet of post-menopausal women.

Authors+Show Affiliations

Departamento de Nutrición y Bromatología I (Nutrición), Facultad de Farmacia, Universidad Complutense, E-28040 Madrid, Spain.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

11227032

Citation

Oubiña, P, et al. "Eicosanoid Production, Thrombogenic Ratio, and Serum and LDL Peroxides in Normo- and Hypercholesterolaemic Post-menopausal Women Consuming Two Oleic Acid-rich Diets With Different Content of Minor Components." The British Journal of Nutrition, vol. 85, no. 1, 2001, pp. 41-7.
Oubiña P, Sánchez-Muniz FJ, Ródenas S, et al. Eicosanoid production, thrombogenic ratio, and serum and LDL peroxides in normo- and hypercholesterolaemic post-menopausal women consuming two oleic acid-rich diets with different content of minor components. Br J Nutr. 2001;85(1):41-7.
Oubiña, P., Sánchez-Muniz, F. J., Ródenas, S., & Cuesta, C. (2001). Eicosanoid production, thrombogenic ratio, and serum and LDL peroxides in normo- and hypercholesterolaemic post-menopausal women consuming two oleic acid-rich diets with different content of minor components. The British Journal of Nutrition, 85(1), 41-7.
Oubiña P, et al. Eicosanoid Production, Thrombogenic Ratio, and Serum and LDL Peroxides in Normo- and Hypercholesterolaemic Post-menopausal Women Consuming Two Oleic Acid-rich Diets With Different Content of Minor Components. Br J Nutr. 2001;85(1):41-7. PubMed PMID: 11227032.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Eicosanoid production, thrombogenic ratio, and serum and LDL peroxides in normo- and hypercholesterolaemic post-menopausal women consuming two oleic acid-rich diets with different content of minor components. AU - Oubiña,P, AU - Sánchez-Muniz,F J, AU - Ródenas,S, AU - Cuesta,C, PY - 2001/2/28/pubmed PY - 2001/3/27/medline PY - 2001/2/28/entrez SP - 41 EP - 7 JF - The British journal of nutrition JO - Br J Nutr VL - 85 IS - 1 N2 - The present paper compares the effects of two monounsaturated oils, extra virgin olive oil (EVOO) and high-oleic acid sunflower oil (HOSO), on serum and LDL peroxides, eicosanoid production and the thrombogenic ratio (thromboxane (TX) B2:6-keto-prostaglandin F1alpha) in fourteen non-obese post-menopausal women. The subjects, mean age 63 (SD 11) years, were assigned to two consecutive oleic acid-rich 28 d dietary periods. EVOO and HOSO represented 62 % of the total lipid intake and were used as the only culinary fat during the first and second dietary periods respectively. Serum peroxides, plasma alpha-tocopherol and TXB2 levels in stimulated platelet-rich plasma (PRP-TXB2) were significantly higher (P < 0.01, P < 0.001, and P < 0.05, respectively) after the HOSO diet than after the EVOO diet. The relationship between the serum cholesterol level (< 6.21 mmol/l or > or = 6.21 mmol/l) and the type of dietary oil on eicosanoids, peroxides and alpha-tocopherol were evaluated by two-way ANOVA. Dietary oil significantly affected (P < 0.05) the PRP-TXB2 level, whereas serum and LDL peroxides were significantly affected (P < 0.001 and P < 0.01, respectively) by the serum cholesterol level. The plasma alpha-tocopherol level was significantly affected by the serum cholesterol level and the type of dietary oil (both P < 0.001). No significant relationships were found between serum cholesterol levels, serum peroxide or LDL peroxide levels, plasma alpha-tocopherol concentrations or alpha-tocopherol intakes with eicosanoid production or the thrombogenic ratio due to dietary changes. However, in spite of their higher alpha-tocopherol levels, hypercholesterolaemic subjects showed increased peroxidation in serum and LDL in comparison with normocholesterolaemic subjects on the HOSO diet in comparison with the EVOO diet. These findings suggest that differences in the type of minor compounds, as well as in the concentration of linoleic acid, in both these monounsaturated oils may play an important role in modulating eicosanoid production and lipoprotein peroxidation when they constitute a large proportion of the diet of post-menopausal women. SN - 0007-1145 UR - https://www.unboundmedicine.com/medline/citation/11227032/Eicosanoid_production_thrombogenic_ratio_and_serum_and_LDL_peroxides_in_normo__and_hypercholesterolaemic_post_menopausal_women_consuming_two_oleic_acid_rich_diets_with_different_content_of_minor_components_ L2 - https://medlineplus.gov/cholesterollevelswhatyouneedtoknow.html DB - PRIME DP - Unbound Medicine ER -