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At least 505 records · Page 28Linked to original sources
PubMed2001

Effects of minor constituents (non-glyceride compounds) of virgin olive oil on plasma lipid concentrations in male Wistar rats.

We aimed to assess the effects of minor constituents (MC) from virgin olive oil upon the plasma lipid profile of experimental animals. Therefore, 32 Wistar rats were fed for 6 weeks with one of four different diets with a similar fatty acid composition but different MC: high-oleic sunflower oil (HOSO), virgin olive oil (VOO), 400%-MC enriched olive oil (EOO) and MC poor (impoverished) olive oil (IOO). At the end of the week 6 of dietary treatment, blood samples were obtained for analysis of lipid composition. A statistically significant influence was observed upon both total HDL (1.593+/-0.4, 1.204+/-0.212, 0.991+/-0.244 and 0.827+/-0.279 mmol/L for EOO, HOSO, VOO and IOO, respectively, Kruskal-Wallis test, P<0.05) and HDL(2)cholesterol levels (1.16+/-0.26, 0.576+/-0.191, 0.585+/-0.216 and 0.583+/-0.207 mmol/L for EOO, HOSO, VOO and IOO, respectively, Kruskal-Wallis test, P<0.05). No statistically significant effect was observed upon LDL-cholesterol or triglycerides. Thus, MC supplementation has beneficial effects on HDL concentrations in Wistar rats.

Animals↗
PubMed1970

Intracellular hydrolysis of short chain glycerides by rat small intestine in vitro and transfer of glycerol.

1. When triacetin, tripropionin and tributyrin are incubated with sacs of rat everted intestine, they enter the epithelial cells and are completely hydrolysed to free fatty acids and glycerol.2. The distribution between the mucosal and serosal fluids of the glycerol released is very different from that of the fatty acid. Although both hydrolytic products are accumulated in the serosal fluid, a much higher fraction of the fatty acid appears in this compartment.3. When glycerol is initially present in the mucosal fluid there is no evidence of its movement against a concentration gradient.4. The results confirm the existence of a transport mechanism for fatty acids released intracellularly but do not require the hypothesis of a special mechanism for glycerol transfer.

Animals↗
PubMedDate not supplied

[Investigation on fats of Virola surinamenis; I. Glyceride and acid composition, and chemical nature of various unsaponificable components].

The A.A. report a work done on the influence of hypophysectomy on fluoride metabolism by the bones of rats. The results obtained indicate that hypophysectomy enhances F concentration in bones and teeth. The F retained is function of the growth of the animals and depends on the type of mineralization of the colagen matrix. All these effects seem related to the thyroid hypofunction subsequent to the pituitary removal.

Fruit↗
PubMedDate not supplied

[Phospholipid-glycerides, cross-resistance of erythrocytes, malonic dialdehyde level and alpha-tocopherol levels in the plasma and erythrocytes of rats with alloxan diabetes before and after combined antioxidant therapy].

Quantitative and qualitative alterations in content of phospholipids were studied in erythrocytes of rats with alloxan diabetes: rate of lipid peroxidation and content of L-tocopherol were estimated in blood plasma before and after the antioxidant therapy. Patterns of lipid metabolism were normalized after the course of treatment involving simultaneous administration of L-tocopherol and ascorbic acid within 10-15 days. The antioxidants used decreased the rate of lipid peroxidation in erythrocyte membranes and stimulated biosynthesis of phospholipids de novo. Role of antioxidants in phospholipid metabolism is discussed.

Animals↗