Oleaster Oil Positively Modulates Plasma Lipids in Humans

Abstract

The olive tree had been domesticated during the early Neolithic in the Near East, and more than 1000 different cultivars have been identified to date. However, examples of wild olive trees (Olea europaea oleaster) can still be found in the Mediterranean basin. Evidence of oleaster use for oil production can be found in historical and sacred texts, such as the Odyssey, the Holey Koran, and the Holey Bible. While the nutritional and healthful properties of olive oil are actively being explored, there are no data on the human actions of oleaster oil. Therefore, we investigated the effect of prolonged, i.e., 1 month, consumption of oleaster oil on the lipid profile of a 40 healthy Algerian subjects (aged 27.9 ± 3.85 years), as compared to nonconsumers from the same area. Plasma urea, creatinine, and uric acid concentrations and glycemia did not significantly differ, at the end of the study, between controls and oleaster-oil-supplemented subjects. Conversely, we recorded significant decreases of plasma triglyceride concentration (-24.8%; p < 0.05), total cholesterol (-12.13%; p < 0.05), and low-density lipoprotein-cholesterol (LDL-C) (-24.39%; p < 0.05) in oleaster-oil-treated subjects. Concomitantly, high-density lipoprotein-cholesterol (HDL-C) concentrations were significantly increased (17.94%; p < 0.05) by oleaster oil administration. In conclusion, we show that oil obtained from feral olive trees, i.e., oleasters, improves the plasma lipid profile of healthy volunteers.

A comprehensive review on phytochemical and pharmacological aspects of Elaeagnus angustifolia L.

“…Fatty acids, including saturated, monounsaturated and polyunsaturated fatty acids, seem to be the responsible constituents. [54] Side effects and toxicity Long history of E. angustifolia fruit consumption as a food ingredient or edible crop in various countries confirmed its safety. Furthermore, 7-week consumption of aqueous extract of the fruits in 40 patients was tolerable and without any reported adverse effects.…”

“…In vivo -Myocardial ischaemia/reperfusion injury on isolated rat heart Improvement of coronary flow, left ventricular developed pressure and maximum rise/down myocardial velocity and infarct size via improvement of myocardial oxidative stress: enhancement of SOD activity and suppression of lipid (malondialdehyde content) and protein (protein carbonyl content) peroxidation 0.5 mg/ml, 1 mg/ml [53] Hypolipidemic Fruit Oil (7.2%) Clinical trial -After 4-week consumption of oleaster oil as dietary supplementation, lipid profile of 40 healthy person was assessed and compared with control group Improvement of plasma lipid profile: reduction of plasma triglyceride, total cholesterol, LDL-C, and increase in HDL-C significantly compared with control group 23 g/day (2 tablespoons) Fatty acids: saturated fatty acid; monounsaturated fatty acid and polyunsaturated fatty acid [54] Cytotoxicity and congenital malformations…”

Olive oil phenolics: Where do we stand? Where should we go?

“…Olive oil is/was the primary fat source of the traditional Mediterranean diet1 and differs significantly in composition from dietary lipids that are consumed by other populations 2. From a commercial viewpoint, it needs to be underlined that there is considerable difference between ‘olive oil’ and ‘extra virgin olive oil’.…”

Immunological activities of polysaccharide extracted fromElaeagnus angustifolia L.

“…It can against the wind and sand, resistance to the saline-alkali soil and barren soil. Many researches have proved that Elaeagnus angustifolia L. have anti-microbial effects (Khan et al, 2016;Okmen & Turkcan, 2013a, 2013b, antioxidative effects (Farzaei et al, 2016;Yalcin & Sogut, 2014), anti-inflammatory activity (Beigom et al, 2010), wound healing activity (Mehrabani et al, 2012), anti-arthritic effect (Nikniaz, Ostadrahimi, Mahdavi, Ebrahimi, & Nikniaz, 2014;Talaei-Khozani et al, 2011), and cardiovascular effects (Belarbi et al, 2011;Wang, Qu, Ma, Sun, & Wang, 2015).…”