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

2001 ◽  
Vol 20 (3) ◽  
pp. 211-215 ◽  
Author(s):  
M.A. MANGAS-CRUZ ◽  
A. FERNÁNDEZ-MOYANO ◽  
T. ALBI ◽  
A. GUINDA ◽  
F. RELIMPIO ◽  
...  
Keyword(s):  
Olive Oil ◽  
Wistar Rats ◽  
Virgin Olive Oil ◽  
Plasma Lipid ◽  
Minor Constituents ◽  
Male Wistar Rats

Longevity and Cause of Death in Male Wistar Rats Fed Lifelong Diets Based on Virgin Olive Oil, Sunflower Oil, or Fish Oil

2019 ◽  
Author(s):  
César L Ramirez-Tortosa ◽  
Alfonso Varela-López ◽  
Maria D Navarro-Hortal ◽  
Francisco M Ramos-Pleguezuelos ◽  
Bélgica Márquez-Lobo ◽  
...  
Keyword(s):  
Fish Oil ◽  
Olive Oil ◽  
Cause Of Death ◽  
Sunflower Oil ◽  
Wistar Rats ◽  
Virgin Olive Oil ◽  
Male Wistar Rats ◽  
Oil Sunflower

scholarly journals Effects of Virgin Olive Oil on Blood Pressure and Renal Aminopeptidase Activities in Male Wistar Rats

2021 ◽  
Vol 22 (10) ◽  
pp. 5388
Author(s):  
Germán Domínguez-Vías ◽  
Ana Belén Segarra ◽  
Manuel Ramírez-Sánchez ◽  
Isabel Prieto
Keyword(s):  
Blood Pressure ◽  
Nervous System ◽  
Sympathetic Nervous System ◽  
Olive Oil ◽  
Wistar Rats ◽  
Virgin Olive Oil ◽  
Renal Medulla ◽  
Standard Diet ◽  
Male Wistar Rats ◽  
Sympathetic Nervous

High saturated fat diets have been associated with the development of obesity and hypertension, along with other pathologies related to the metabolic syndrome. In contrast, the Mediterranean diet, characterized by its high content of monounsaturated fatty acids, has been proposed as a dietary factor capable of positively regulating cardiovascular function. These effects have been linked to changes in the local renal renin angiotensin system (RAS) and the activity of the sympathetic nervous system. The main goal of this study was to analyze the role of two dietary fat sources on aminopeptidases activities involved in local kidney RAS. Male Wistar rats (six months old) were fed during 24 weeks with three different diets: the standard diet (S), the standard diet supplemented with virgin olive oil (20%) (VOO), or the standard diet enriched with butter (20%) plus cholesterol (0.1%) (Bch). Kidney samples were separated in medulla and cortex for aminopeptidase activities (AP) assay. Urine samples were collected for routine analysis by chemical tests. Aminopeptidase activities were determined by fluorometric methods in soluble (sol) and membrane-bound (mb) fractions of renal tissue, using arylamide derivatives as substrates. After the experimental period, the systolic blood pressure (SBP) values were similar in standard and VOO animals, and significantly lower than in the Bch group. At the same time, a significant increase in GluAP and IRAP activities were found in renal medulla of Bch animals. However, in VOO group the increase of GluAP activity in renal medulla was lower, while AspAP activity decreased in the renal cortex. Furthermore, the VOO diet also affected other aminopeptidase activities, such as TyrAP and pGluAP, related to the regulation of the sympathetic nervous system and the metabolic rate. These results support the beneficial effect of VOO in the regulation of SBP through changes in local AP activities of the kidney.

scholarly journals A Mixture of Algae and Extra Virgin Olive Oils Attenuates the Cardiometabolic Alterations Associated with Aging in Male Wistar Rats

Antioxidants ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 483 ◽  
Author(s):  
Daniel González-Hedström ◽  
Sara Amor ◽  
María de la Fuente-Fernández ◽  
Antonio Tejera-Muñoz ◽  
Teresa Priego ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Insulin Sensitivity ◽  
Vascular Function ◽  
Wistar Rats ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Virgin Olive Oil ◽  
Mrna Levels ◽  
Serum Concentrations ◽  
Male Wistar Rats

Aging is one of the major risk factors for suffering cardiovascular and metabolic diseases. Due to the increase in life expectancy, there is a strong interest in the search for anti-aging strategies to treat and prevent these aging-induced disorders. Both omega 3 polyunsaturated fatty acids (ω-3 PUFA) and extra virgin olive oil (EVOO) exert numerous metabolic and cardiovascular benefits in the elderly. In addition, EVOO constitutes an interesting ingredient to stabilize ω-3 PUFA and decrease their oxidation process due to its high content in antioxidant compounds. ω-3 PUFA are commonly obtained from fish. However, more ecological and sustainable sources, such as algae oil (AO) can also be used. In this study, we aimed to study the possible beneficial effect of an oil mixture composed by EVOO (75%) and AO (25%) rich in ω-3 PUFA (35% docosahexaenoic acid (DHA) and 20% eicosapentaenoic acid (EPA)) on the cardiometabolic alterations associated with aging. For this purpose; young (three months old) and old (24 months old) male Wistar rats were treated with vehicle or with the oil mixture (2.5 mL/kg) for 21 days. Treatment with the oil mixture prevented the aging-induced increase in the serum levels of saturated fatty acids (SFA) and the aging-induced decrease in the serum concentrations of mono-unsaturated fatty acids (MUFA). Old treated rats showed increased serum concentrations of EPA and DHA and decreased HOMA-IR index and circulating levels of total cholesterol, insulin and IL-6. Treatment with the oil mixture increased the mRNA levels of antioxidant and insulin sensitivity-related enzymes, as well as reduced the gene expression of pro-inflammatory markers in the liver and in cardiac and aortic tissues. In addition, the treatment also prevented the aging-induced endothelial dysfunction and vascular insulin resistance through activation of the PI3K/Akt pathway. Moreover, aortic rings from old rats treated with the oil mixture showed a decreased response to the vasoconstrictor AngII. In conclusion, treatment with a mixture of EVOO and AO improves the lipid profile, insulin sensitivity and vascular function in aged rats and decreases aging-induced inflammation and oxidative stress in the liver, and in the cardiovascular system. Thus, it could be an interesting strategy to deal with cardiometabolic alterations associated with aging.

scholarly journals EXTRA VIRGIN OLIVE OIL EFFECT IN THE COMBINATION OF ALCOHOL AND BENZENE ON THE KIDNEY OF RATTUS NOVERGICUS

2021 ◽  
pp. 19-22
Author(s):  
ADETUNJI OPEYEMI ADEBOLA ◽  
ADETUNJI OLUWASEYI ADEGOKE ◽  
NWOBI JOSEPH CHIGBOGU ◽  
ADETUNJI IYABODE TOYIN ◽  
OGUNBIYI BABAFEMI TOSIN ◽  
...  
Keyword(s):  
Olive Oil ◽  
Wistar Rats ◽  
Virgin Olive Oil ◽  
Extra Virgin Olive Oil ◽  
Histological Evidence ◽  
Relative Organ Weight ◽  
Female Wistar Rats ◽  
Cervical Dislocation ◽  
Histological Processing ◽  
Test Level

Objective: This study investigated the use of extra virgin olive oil (EVOO), which is said to possess anti-inflammatory components as an ameliorative substance for the induced inflammation. Methods: Forty-eight female Wistar rats were used for this study. They were divided into eight (1–8) groups (n=6); Control, Ethanol, Benzene, E+B, E+O, B+O, E+B+O with the administration of 25% Ethanol, 200 mg/kg/b.w Benzene, 2 ml (O) EVOO in respect to the tagged grouping names. Animals were euthanized through cervical dislocation after the last day of administration and the liver was excised and part was fixed in formalin solution of 10% for histological processing and the other part was homogenized for biochemical assay in phosphate buffer before centrifugation. Results: Histological evidence creates an understanding of the nephrons in which benzene and ethanol manifest likewise the mitigated ability of EVOO. The relative organ weight provides information on the extent of the damage on nephrons. The kidney test level is significantly expressed. Conclusion: Ethanol and benzene in combination cause serious damage; also, they separately induce nephrons dysfunction. EVOO was shown to mitigate these nephrons damages.

Oxidative stability and minor constituents of virgin olive oil and cold-pressed rapeseed oil

2002 ◽  
Vol 214 (4) ◽  
pp. 294-298 ◽  
Author(s):  
Anna Koski ◽  
Eleni Psomiadou ◽  
Maria Tsimidou ◽  
Anu Hopia ◽  
Panos Kefalas ◽  
...  
Keyword(s):  
Oxidative Stability ◽  
Olive Oil ◽  
Rapeseed Oil ◽  
Virgin Olive Oil ◽  
Minor Constituents ◽  
Cold Pressed

scholarly journals Marine n-3 fatty acids promote size reduction of visceral adipose depots, without altering body weight and composition, in male Wistar rats fed a high-fat diet

2009 ◽  
Vol 102 (7) ◽  
pp. 995-1006 ◽  
Author(s):  
Merethe H. Rokling-Andersen ◽  
Arild C. Rustan ◽  
Andreas J. Wensaas ◽  
Olav Kaalhus ◽  
Hege Wergedahl ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Mrna Expression ◽  
High Fat Diet ◽  
Wistar Rats ◽  
Plasma Lipid ◽  
Feed Consumption ◽  
High Fat ◽  
Male Wistar Rats ◽  
Similar Body ◽  
Visceral Adipose

We evaluated the effects of partly substituting lard with marine n-3 fatty acids (FA) on body composition and weight, adipose tissue distribution and gene expression in five adipose depots of male Wistar rats fed a high-fat diet. Rats were fed diets including lard (19·5 % lard) or n-3 FA (9·1 % lard and 10·4 % Triomar™) for 7 weeks. Feed consumption and weight gain were similar, whereas plasma lipid concentrations were lower in the n-3 FA group. Magnetic resonance imaging revealed smaller visceral (mesenteric, perirenal and epididymal) adipose depots in the n-3 FA-fed animals (35, 44 and 32 % reductions, respectively). n-3 FA feeding increased mRNA expression of cytokines as well as chemokines in several adipose depots. Expression of Adipoq and Pparg was enhanced in the mesenteric adipose depots of the n-3 FA-fed rats, and fasting plasma insulin levels were lowered. Expression of the lipogenic enzymes Acaca and Fasn was increased in the visceral adipose depots, whereas Dgat1 was reduced in the perirenal and epididymal depots. Cpt2 mRNA expression was almost doubled in the mesenteric depot and liver. Carcass analyses showed similar body fat (%) in the two feeding groups, indicating that n-3 FA feeding led to redistribution of fat away from the visceral compartment.

scholarly journals Efektifitas Pemberian Ekstra Virgin Minyak Zaitun Dan Ekstrak Kulit Manggis (Mastin) Terhadap Kadar Kolesterol Tikus Putih Starin Wistar Jantan Yang Diinduksi Hiperlipedemia

2017 ◽  
Vol 6 (2) ◽  
Author(s):  
Yeni Tutu Rohimah ◽  
Sri Lestari Dwi Astuti
Keyword(s):  
Olive Oil ◽  
Total Cholesterol ◽  
Virgin Olive Oil ◽  
Extra Virgin Olive Oil ◽  
Positive Control ◽  
Control Group ◽  
High Fat ◽  
Mangosteen Peel ◽  
Male Wistar Rats ◽  
Peel Extract

Abstract : Extra Virgin Olive Oil, Mangosteen Peel Extract, Serum Lipid Levels. Cardiovascular disease was the number one cause of death, risk factors of cardiovascular disease were divided into the risk factors that can’t be modified and the factors that can be modified. Some of the plants that have therapeutic benefit are olive oil and mangosteen peel extract. Olive oil is a useful food because of its content is rich in monounsaturated fatty acids (MUFA). Mangosteen peel extract has properties as antilipemic that can increase the activity of Peroxisome proliferator-Activated Receptors (PPAR). This research had a purpose to examine the effectiveness between Extra Virgin Olive Oil and the mangosteen peel extract against cholesterol levels. The methode of this research was laboratory experimental with post test only control group design. Thirty eight male wistar rats were divided into four groups. The negative control (K1) was fed with standard food for 38 days. The positive control (K2) was fed with high fat food for 38 days. The first treatment group (P1) was fed with high fat food for 38 days then it was fed with standard food and Extra Virgin Olive Oil 0,5 gr/day for 28 days. The second treatment group (P2) was fed with high fat food for 38 days then it was fed with standard food and mangosteen peel extract 0,0125 gr/days for 28 days. Afterwards, all of the groups total cholesterol and trigliserida were examined. The data analysis used One Way Anova then it tested by post-hok (p > 0,005). The result for K2 were 336,9 ± 43,76 trigliserida and 263,3 ± 12,9 total cholesterol, K1 were 138,2 ±12,7 trigliserida and 76,3 ± 8,2 total cholesterol, P1 were 325,02 ± 38,2 trigliserida and 73,6 ± 17,8 total cholesterol, P2 were 328 ± 48,14 trigliserida and 66, 5 ± 13,7 total cholesterol. The analysis result between positive control group with Extra Virgin Olive Oil and the mangosteen peel extract for total cholesterol was p < 0,05 while for trigliserida was p > 0,05. The ratio Extra Virgin Olive Oil and the mangosteen peel extract was p > 0,05. Extra Virgin Olive Oil and the mangosteen peel extract has the same effectiveness to reduce cholesterol on a male wistar rats that were induced by hyperlipidemia.

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