Administration Of Extra Virgin Olive Oil Research Articles

Extra virgin olive oil beneficial effects on memory, synaptic function, and neuroinflammation in a mouse model of Down syndrome.

Clinical and preclinical studies have shown that extra virgin olive oil (EVOO), a major component of the Mediterranean diet, has beneficial effects on brain aging and cognition. Individuals with Down syndrome develop age-dependent cognitive decline and synaptic dysfunction. However, whether EVOO intake is beneficial in Down syndrome is not known. In this study, by implementing a mouse model of Down syndrome, we aimed to investigate the effect that chronic administration of EVOO has on memory, synaptic function, and neuroinflammation. Starting at 4 months of age Ts65dn mice were randomized to receive EVOO for 5 months in their diet, after which they were tested for learning and memory impairment. After euthanasia, synaptic function was measured in freshly obtained hippocampal slices, whereas brain tissues were assessed for inflammatory biomarkers. Compared with controls, mice receiving EVOO had a significant improvement in learning and spatial memory. Additionally, field potential recordings showed that treated mice had an improvement in synaptic function. Finally, array analysis showed that EVOO modulated the expression levels of several inflammatory biomarkers. Chronic administration of EVOO to a mouse model of Down syndrome has beneficial effects on memory impairments, synaptic function deficits and neuroinflammation. Our findings provide additional support for the potential therapeutic effects of EVOO also in individuals with Down syndrome.

The possible anti-inflammatory effect of extra virgin olive oil with colchicine in treatment of resistant cases of familial Mediterranean fever in a cohort of pediatric Egyptian patients

BackgroundPeople of Mediterranean descent are primarily affected by the autoinflammatory genetic condition known as familial Mediterranean fever (FMF). The disease is resistant to colchicine therapy in 10–20% of patients. Numerous recent animal studies showed promising results of extra virgin olive oil (EVOO) to control inflammation. The objective of this study was to assess the effectiveness of combining EVOO with colchicine in the treatment of colchicine-resistant familial Mediterranean fever (CRFMF) patients.ResultsBoth the frequency of episodes and inflammatory indicators significantly decreased after a three-month course of daily EVOO treatment with colchicine. The average erythrocyte sedimentation rate (ESR) of patients was 78.6 mm/h before the EVOO administration, and it dropped to 27.8 mm/h, after that. Additionally, after taking EVOO, the mean serum amyloid A (SAA) decreased from 123.82 mg/dl to 59.78 mg/L. Also, the average C-reactive protein (CRP) decreased from 34.22 to 7.84 mg/dl following its administration; the mean nucleotide-binding domain, leucine-rich-containing family, and pyrin domain-containing-3 (NLRP3) level decreased from 134.92 to 64.23 pg/ml. The mean caspase-1 level decreased from 7.8 to 4.98 ng/ml; and the mean levels of cytokines, interleukin 6 (IL-6), interleukin 1 beta (IL-1 β), and tumor necrosis factor-alpha (TNF-α) decreased from 9.8, 18.14, and 52.7 pg/ml, respectively, to 5.95, 12.51, and 29.39 pg/ml. Finally following the administration of EVOO, there was a notable overall improvement in the quality of life of (CRFMF) patients.ConclusionEVOO demonstrated a significant positive impact when paired with the tolerated dosage of colchicine in the management of CRFMF. Improvements were observed in both clinical and laboratory settings, including a reduction in the attack frequency and serum levels of inflammatory markers, such as NLRP3, caspase-1, ESR, CRP, IL-1β, IL-6, and TNF-α without any negative side effects.

Dual effects of extra virgin olive oil in acute wounds.

Extra virgin olive oil (EVOO) has proved beneficial effects in skin wound healing of chronic lesions; however, the effects of EVOO in acute wounds are not completely understood. This study investigated the effects of short-term and long-term administration of a diet rich in EVOO on acute wound healing. To check this, mice were fed with a diet rich in EVOO for 1 week (short term), 1 month, or 3 months (long term). The control group received a standard diet. Mouse macrophages were treated in vitro with EVOO or hydroxytyrosol (HT), which is the main EVOO polyphenol. Short-term administration of an EVOO rich diet in vivo increased lipid peroxidation and mRNA levels of pro-inflammatory cytokine levels and impaired acute wound closure. In contrast, long-term administration of an EVOO rich diet resulted in increased mRNA levels of anti-inflammatory cytokines and enhanced acute wound closure. In both in vivo and in vitro assays, the administration of EVOO or HT resulted in a predominantly anti-inflammatory macrophage phenotype. In conclusion, a diet rich in EVOO has a positive effect on acute wound healing that is dependent on the duration of EVOO administration. Short-term EVOO diet supplementation increases oxidative damage and pro-inflammatory responses, which impaired acute wound closure. On the other hand, long-term EVOO supplementation reduces oxidative damage and enhances anti-inflammatory responses, which improved acute wound closure. The effects of EVOO on oxidation and inflammation in acute wounds are linked to the EVOO polyphenol HT.

Extra virgin olive oil inhibits Helicobacter pylori growth in vitro and the development of mice gastric mucosa lesions in vivo.

Helicobacter pylori infection is widespread worldwide, with more than a half of the world population infected. H. pylori antibiotic-resistant strains and non-compliance to therapy are the major causes of H. pylori eradication failure. The search for new therapies based on plant extracts is a scientific interest field. The present study was conducted to evaluate the effect in vitro of extra virgin olive oil (EVOO), hydroxytyrosol (HT), and oleuropein (Olp) against two H. pylori strains and the effect in vivo of the oral administration of EVOO on the gastric mucosa of BALB/c mice infected with this microorganism. The broth microdilution method assayed the antibacterial in vitro activity of EVOO, HT, and Olp against H. pylori strains. For in vivo studies, male BALB/c mice were infected orally with an H. pylori suspension every 72 h. Four groups were used: (1) Control, (2) H. pylori-infected (HP), (3) EVOO, and (4) HP + EVOO. Mice were sacrificed at 7, 15, and 30 days. The stomachs were removed and observed under a microscope. Scoring of the degree of erosion was determined. Samples were processed by histological techniques for light microscopy. Macroscopic analysis showed that the presence of small erosions increased, both in number and size, in the infected group. Animals infected and treated with EVOO exhibited the presence of fewer erosions, which decreased in number as the treatment progressed. The mucosa of the control and EVOO groups showed normal histological characteristics at the three times studied. The mucosa of animals infected with H. pylori showed disruptions of the lining epithelium, damage to gastric glands, and vasodilation. The mucosa of animals infected with H. pylori and treated with EVOO showed morphological characteristics similar to those of normal and EVOO mucosa. For the first time, the current study showed the effect in vitro and in vivo of EVOO and combined administration of HT and Olp against H. pylori using an animal model. Future studies are needed to establish the mechanism of EVOO’s action at the gastric mucosa level to propose this product as a natural antimicrobial agent for the treatment of gastric H. pylori infections.

The Effect of the Extra Virgin Olive Oil Administration towards the Malondialdehyde and Vascular Endothelial Growth Factor Levels on the Hypertensive Pregnant Rats

Background: Hypertension and pregnancy cause placental ischemia which will produce the toxic free radicals that cause the oxidative stress and increase the malondialdehyde (MDA) level. Oxidative stress also decreases the Vascular Endothelial Growth Factor (VEGF) level. Extra Virgin Olive Oil (EVOO) contains antioxidants that can break free radical chain reactions. This study aims to determine the effect of the EVOO administration on the MDA and VEGF levels on the hypertensive pregnant rats. Methods: A post-test only control group design study was conducted on 30 pregnant rats consisting of a negative control group (K-), a positive control group (K+) and 3 treatment groups as a hypertension model (Pl, P2, P3), NaC1-induced hypertension model 6 % on day 6 to day 12 of pregnancy. All treatment groups were given EVOO except K+, from day 13 to day 19. On day 20, all the rats were executed. The MDA examination used a spectrophotometer and the VEGF examination used ELISA. The data was tested by using the one way ANOVA test which was statistically significant if p < 0.05. Results: The results of this study showed that there was a significant decrease on the mean of the MDA level after the EVOO administration, especially in the P3 group, which was 1,532 mmol/l (p 0.000) and a significant increase on the mean of the VEGF level after the EVOO administration, especially in the P3 group, which was 68,892 ng/l. (p 0.000). It means that there is an effect of the EVOO administration on the MDA and VEGF levels of hypertensive pregnant rats. Conclusion: The conclusion of this study is that the EVOO administration can decrease the MDA level and increase the VEGF level on hypertensive pregnant rats. Keywords: EVOO, MDA, VEGF, Hypertension.

A Combination of Virgin Coconut Oil and Extra Virgin Olive Oil Elicits Superior Protection Against Doxorubicin Cardiotoxicity in Rats

The use of the chemotherapy agent doxorubicin (DOX) is associated with free radical formation that may lead to cardiotoxicity. Virgin coconut oil (VCO) and extra virgin olive oil (EVOO) are plant-based oil that is rich in antioxidants. This study examined the protective effects of VCO and EVOO combination to reduce DOX acute cardiotoxicity in rats. Twenty-five male rats (180-200 g) were divided into the following groups: Group I as a control, group II was given DOX i.p. injection of 25 mg/kg body weight (b.w.), group III to V received peroral administration of either VCO, EVOO or VCO-EVOO (1:1) combination at a dose of 10 mL/kg b.w. for 6 days before receiving DOX i.p. injection. After 24 hours from DOX injection, blood samples and organs were collected. Cardiac biomarkers, such as serum glutamic-oxaloacetic transaminase (SGOT), lactate dehydrogenase (LDH), and creatine kinase-MB (CKMB) were analyzed followed by histopathological examination. The administration of EVOO alone was found to reduce the marked elevation of SGOT, LDH, and CKMB levels in DOX-treated rats (p<0.05), while VCO administration only significantly reduced LDH and CKMB levels. However, when both oils were used in combination, the protective effect was shown to be more powerful since all cardiac biomarker levels were maintained at near-normal levels (p<0.05). Histopathological analysis showed a significant improvement in the myocardial tissue structures after pre-treatment with VCO-EVOO combination. The administration of VCO and EVOO in combination was superior to elicit protection against DOX-induced cardiotoxicity compared to their individual application in rats.

Evaluation of Pituitary-Testicular Axis and Lipid Profile Levels in Male Wistar Rats Administered Extra Virgin Olive Oil Versus Oleic Acid with a Normal Diet

Background: Dietary fats impact male reproductive functions. The effect of consumption of normal rat chow with the Mediterranean main fat, extra-virgin olive oil (EVOO), and its major component, oleic acid (OA) in non-metabolic disease states on reproductive hormonal functions is however unknown. Objectives: This study investigated the effect of EVOO and OA in normal diet feeding on reproductive hormones and lipid profiles. Methods: Eighteen male Wistar rats were divided into 3 groups and fed as follows: Group I (Control) fed the normal rat chow. Group II (extra-virgin olive oil: EVOO) fed the normal diet plus 1 ml/kg/day EVOO. Group III (oleic acid: OA) fed the normal diet plus 1 ml/kg/day OA as previously described. After 4 weeks of the experimental period, reproductive hormones, lipid profile, glucose, and total protein levels were assessed. Results: The serum luteinizing hormone (LH) level was significantly increased in both EVOO and OA groups, with no significant difference in serum testosterone (T) levels. The testicular T and serum oestradiol levels were significantly decreased in the EVOO groups but were significantly increased in the OA groups when compared to the control. There was a significant increase in the serum LDL-C in both EVOO and OA groups when compared to the control. The serum HDL-C levels were significantly decreased (p &lt; 0.05) in both EVOO and OA groups when compared to control. Conclusion: The administration of EVOO and OA in normal diet feeding resulted in diminished serum testosterone levels and serum HDL-C levels.

Extra Virgin Olive Oil consumption from Mild Cognitive Impairment patients attenuates oxidative and nitrative stress reflecting on the reduction of the PARP levels and DNA damage

Oxidative/nitrative stress that results from the unbalance of the overproduction/clearance of reactive oxygen/nitrogen species (ROS/NOS), originated from a variety of endo- and/or exo-genous sources, can have detrimental effects on DNA and is involved in Alzheimer's disease (AD) pathology. An excellent marker of oxidative DNA lesions is 8-hydroxy-2'-deoxyguanosine (8-OHdG) while of nitrative stress the enzyme NOS2 (Nitric oxide synthase 2). Under massive oxidative stress, poly(ADP-ribose)polymerase 1 (PARP-1) enzyme activity, responsible for restoration of DNA damage, is augmented, DNA repair enzymes are recruited, and cell survival/or death is ensued through PARP-1 activation, which is correlated positively with neurodegenerative diseases. In this biochemical study the levels of PARP-1, 8-oxo-dG, and NOS2, Aβ1-42, and p-tau in their sera determined using Enzyme-Linked Immunosorbent Assay (ELISA). Patients diagnosed with Mild Cognitive Impairment participated in MICOIL clinical trial, were daily administered with 50ml Extra Virgin Olive Oil (EVOO) for one year. All MCI patients' biomarkers that had consumed EVOO were tantamount to those of healthy participants, contrary to MCI patients who were not administered. EVOO administration in MCI patients resulted in the restoration of DNA damage and of the well-established "hallmarks" AD biomarkers, thanks probably to its antioxidant properties exhibiting a therapeutic potentiality against AD. Molecular docking simulations of the EVOO constituents on the crystal structure of PARP-1 and NOS-2 target enzymes were also employed, to study in silico the ability of the compounds to bind to these enzymes and explain the observed in vitro activity. In silico analysis has proved the binding of EVOO constituents on PARP-1and NOS-2 enzymes and their interaction with crucial amino acids of the active sites. CLINICAL TRIAL REGISTRATION: https://clinicaltrials.gov/ct2/show/NCT03362996. MICOIL GOV IDENTIFIER: NCT03362996.

Clastogenic effects of cigarette smoke and urethane and their modulation by olive oil, curcumin and carotenoids in adult mice and foetuses

In spite of the overwhelming epidemiological evidence for cigarette smoke (CS) carcinogenicity, less attention has been paid to the effects of CS as a complex mixture. As assessed in a series of experiments in murine models, the whole-body exposure to mainstream CS induced significant increases of micronucleated cells in the respiratory tract, bone marrow and peripheral blood of adult mice as well as in the liver and peripheral blood of foetuses whose mothers had been exposed throughout pregnancy. Urethane was potently clastogenic in the same cells when injected intraperitoneally. The daily administration of extra-virgin olive oil by gavage produced evident and consistent protective effects in all monitored experimental systems. In contrast, sunflower oil exhibited some adverse effects. Curcumin did not produce any significant effect in the bone marrow of both CS-exposed adults and foetuses but it elicited a dose-dependent protective effect traceable in blood erythrocytes. However, the higher curcumin dose further increased the frequency of micronucleated pulmonary alveolar macrophages. The apparent protective effects produced by lycopene and by a carotenoid mix were overwhelmed by those produced by olive oil, and lycopene even exhibited a worsening effect on the frequency of micronucleated erythroblasts in the bone marrow of urethane-treated adult mice.

The multifunctional therapeutic potentiality of extra virgin olive oil administration through the intervention in pathophysiological mechanisms: Focus on Alzheimer's disease

The multifunctional therapeutic potentiality of extra virgin olive oil administration through the intervention in pathophysiological mechanisms: Focus on Alzheimer's disease

The multifunctional therapeutic potentiality of extra virgin olive oil administration through the intervention in pathophysiological mechanisms: Focus on Alzheimer's disease

Proper dietary habits pave the way for a good and healthy life in order to maintain and prolong the quality of life. It is well known that quality of life in the elderly can be achieved by non-pharmacological approaches such as performing physical activity, cognitive training, or adhering to a Mediterranean Diet (MedDiet). The MedDiet is suggested as the prevalent dietary regimen and is strongly correlated with prevention of degenerative diseases and longevity. The most distinguished and beneficial ingredient of MedDiet is extra virgin olive oil (EVOO). Indeed, numerous epidemiological studies have proved that the consumption of olive oil was associated with better overall health. The foremost component of EVOO is polyphenolic compounds which are under investigation for its biological and pharma-nutritional properties. In this review we recorded several representative in vitro and in vivo studies performed in culture cell lines, in animal or clinical trials, indicating that the regular intake of EVOO is associated with enhanced neuroprotective, antioxidant, anti-inflammatory, anti-atherosclerotic, anti-cancer and anti-microbial properties. Furthermore, it is emerged the demand of more randomized controlled or longitudinal observational studies to be performed to confirm the efficacy of the beneficial health effect of EVOO.

Restoration of BMI1 levels after the administration of early harvest extra virgin olive oil as a therapeutic strategy against Alzheimer's disease.

Even though Alzheimer's disease (AD) is the most common cause of dementia, the mechanisms governing the establishment and progression of the disease remain largely unknown. Here, we investigated the implication of the neuroprotective protein BMI1 (B lymphoma Mo-MLV insertion region 1 homolog) in AD and the possibility to reverse the onset of the disease through the administration of extra virgin olive oil (EVOO) in Mild Cognitive Impairment (MCI) patients. For this purpose, we utilized a wide bank of MCI patient samples to examine the potential effects of EVOO. We found that while EVOO treatment increases BMI1 levels, p53 levels drop in MCI patient serum after EVOO treatment for 12months. Additionally, AD-related biomarkers (p-tau, Aβ1-42 and Aβ1-42/Aβ-40 ratio) return to normal levels after administration of EVOO in MCI patients for 12months. Moreover, we show that upon EVOO administration, BMI1-upregulation correlates with reduction of oxidative stress and inflammatory responses. In conclusion, we provide clinical trial evidence to confirm that restoration of BMI1 activity through EVOO administration in MCI patients constitutes a potential therapeutic approach against neurodegeneration leading to AD.

Effects of Nanoherbal Haramonting (Rhodomyrtus tomentosa) and Extra Virgin Olive Oil on Histology of Liver and Kidney of Preeclamptic Rats.

Preeclampsia (PE) is a life threatening disease prevailing in pregnant women in Indonesia. Impaired kidneys and livers function in PE has a high risk during pregnancy. This study aimed to determine the role of nanoherbal haramonting and Extra Virgin Olive Oil (EVOO) on kidney and liver safety in preeclampsia rats. Nanoherbal Rhodomyrtus tomentosa is a medicinal plant with antioxidant activity such as EVOO which acts as inhibitor of oxidation, reduces lipid peroxidation and increases the speed of epithelialization. This study used pregnant rats (Ratus norvegicus) consisting of 5 treatments. Animal models of preeclampsia were made by injection of NaCl 6% 3 mL/day/kg b.wt., subcutaneously in pregnancy of 6-12 days and then given herbs in pregnancy at 13-19 days. The study group consisted of, C-: Normal pregnant rats, C+: PE rats, T1: PE rats were given EVOO, T2: PE rats were given nanoherbal haramonting and T3: PE rats were given EVOO and nanoherbal haramonting. Tissue histology was made by the paraffin method and staining Hematoxylin Eosin which was dissected on the 20th day of pregnancy. There was no significant difference in weight of the liver and kidneys after administration of EVOO and nanoherbal haramonting. The administration of this herb significantly decreased the narrowing of the kidney tubules and the glomerular diameters. Both of these herbs also repaired preeclamptic liver damage (p<0.05) in normal hepatocyte cells, parenchymal degeneration and necrosis. The EVOO and nanoherbal haramonting repaired preeclamptic liver and kidney damage.

Extra Virgin Olive Oil Modulates Vasodilator Enzyme Level by Repairing Angiogenesis Function in Rat Model of Preeclampsia

Objective: This study aimed to determine the effect of Extra Virgin Olive Oil (EVOO) on vasodilator enzyme by repairing angiogenic function in rat model of preeclampsia. Materials and methods: This research consisted of five groups; negative control (normal pregnant rats) group, positive control (preeclampsia rat model) group, preeclampsia rat model groups given EVOO in 3 different doses (0.5 ml/day, 1 ml/day, and 2 ml/day, respectively). Blood pressure measurements were carried out on day 12, 15, and 19 of pregnancy. After the rats were sacrificed, the placentas were collected to determine endothelial Nitric Oxide Synthase (eNOS) level of maternal plasma to determine soluble Fms-like Tyrosine Kinase 1 (sFlt-1) and Vascular Endothelial Growth Factor (VEGF) level. Results: There were significant higher sFlt-1 level (p < 0.001), lower VEGF level (p = 0.009), and lower eNOS level (p = 0.034) between negative and positive control groups. After EVOO administration, sFlt-1 level was lower in dose 1 and 2 groups but higher in dose 3 group in accordance with VEGF and eNOS levels that were increasing both in dose 1 and dose 2 groups but decreasing in dose 3. There were significant differences between positive control and dose 1 (p = 0.015) and dose 2 (p = 0.001) in sFlt-1 level. None of all dose groups were statistically different with positive control group in VEGF level (dose 1 p = 0.601; dose 2 p = 0.297; dose 3 p = 0.805). eNOS levels of all dose groups were statistically different from that of the positive control group (dose 1 p = 0.014; dose 2 p = 0.001; dose 3 p = 0.024). Conclusion: Administration of EVOO modulates eNOS as vasodilator enzyme by repairing the angiogenic function indicated by decreased sFlt-1 level and increased VEGF in rat model of preeclampsia.

The Effect of Extra Virgin Olive Oil (EVOO) on Fetal Birth Weight in Preeclampsia Rat Model

Preeclampsia, as one of the most common pregnancy-specific diseases, causes high maternal-fetal morbidity and mortality in almost every country. Placental vascular abnormalities in preeclamptic women can cause chronic hypoxia and impaired fetal nutrition, so fetal growth retardation often occurs. EVOO has strong antioxidant effect is assumed to prevent nutritional disorders in the fetus. This study aimed to determine the effect of EVOO on fetal birth weight in a preeclampsia rat model. This research was laboratory research conducted in vivo with a Post Test Only Control Group design which consisted of five groups; negative control group, positive control group (pre-eclampsia rat model), dose 1, 2, and 3 groups that were preeclampsia rats given EVOO in 3 different doses (0.5 mL/day, 1 mL/day and 2 mL/day respectively). Blood pressure and proteinuria measurements were carried out at the 12, 15 and 19 day of pregnancy. After sacrificed, fetal weight was measured immediately using analytical balance. The result of this study showed that there was a significant reduction of fetal weight between negative control and positive control group (p=0.020), meanwhile no significant differences among positive control, dose 1 and dose 2 group (p=0.90 and p=0.142) but statistically significant to dose 3 group (p=0.005). EVOO administration increases fetal weight in doses group by its AA and DHA in Long-Chain Poly Unsaturated Fatty Acids (LCPUFA) within. The optimal dose of EVOO to increase fetal weight is 2 mL/day.

Extra virgin olive oil enhances the hepatic antioxidant defense and inhibits cytogenotoxic effects evoked by 5-hydroxymethylfurfural in mice.

This study was performed to assess the ability of the food genotoxicant 5-hydroxymethylfurfural (5-HMF) to induce DNA damage and oxidative injuries in the liver of mice as a possible mechanism of toxic action and to evaluate the role of extra virgin olive oil (EVOO) in inhibiting these injuries. For this purpose, 80 mice were assigned into four equal groups of 20 mice each. Group 1 was kept as control and group 2 was given 5-HMF (250mg/kg bw) by intraperitoneal (IP) injection 3 times weekly for 4weeks. Group 3 received EVOO (300μl/kg bw) orally daily for 4weeks. Group 4 was co-treated with both 5-HMF (250mg/kg bw) with IP injection and EVOO (300μl/kg bw) orally 3 times weekly for 4weeks. IP injection of 5-HMF resulted in a significant decrease in albumin, globulin, and total protein contents and significant increases in alanine transaminase, aspartate transaminase, and alkaline phosphatase activities. Administration of EVOO alone or with 5-HMF reduced the 5-HMF-induced alterations and restored the liver function biomarkers, antioxidant defense system, and histoarchitecture of the liver to normal values. EVOO also inhibited the genotoxic and apoptotic effects of 5-HMF suggesting that EVOO could provide liver protection through its powerful antioxidant and confirm its good nutriceutical and pharmacological properties.

Placental histological on preeclamptic rats (Rattus norvegicus) after administration of nanoherbal haramonting (Rhodomyrtus tomentosa)

Preeclampsia (PE) can trigger trophoblastic from the placenta into the mother's blood so that it affects the fetus. Extra virgin olive oil (EVOO) containing antioxidant or tocopherol (Vitamin E) and Haramonting is traditional medicine in Indonesia and to treat various diseases, prevent DNA damage, and have antioxidant activity. The aimed of research to determine the role nanoherbal haramonting on placental PE. This study used an animal model of preeclampsia with an injection of 3ml Nacl 6%. This research consisted of: C-: Normal pregnancy rats, C+: PE, T1: PE were given EVOO, T2: PE were given nanoherbal haramonting, T3: PE rats were given a combination of these two herbs. On the 20th pregnancy day the rats were dissected to take the placenta. Histology of placental tissue using paraffin method with hematoxylin eosin staining. Results: There were significant differences in the blood pressure of systol, diastole and proteunaria in each group (P <0.05) so that 6% NaCl could be used in making animal models of PE and the number of tropoblasts in the placenta of PE was a significant difference (P <0.05). Conclusion: Administration of EVOO and nanoherbal haramonting can improve trophoblast counts and placental histology.

Protection by pure and genistein fortified extra virgin olive oil, canola oil, and rice bran oil against acetic acid-induced ulcerative colitis in rats.

Genistein is a major isoflavone with antioxidant and anti-inflammatory activities and hydrophobic features. To increase its bioavailability, researchers supplemented genistein with dietary oils. The present study aims to compare the effectiveness of genistein supplementation with water solution or oils and find the best possible dietary oil for fortification. A total of 135 male Sprague-Dawley rats were randomly assigned to nine groups, including one control group and eight acetic acid-induced colitis groups. The rats in the intervention groups were treated with 5 ml per kg body weight of oral pure and genistein fortified forms of extra virgin olive oil (EVOO), canola oil (CaO), and rice bran oil (RBO); the Genistein group (G) received 100 mg per kg body weight of genistein in aqueous solution orally. The colitis and control groups did not receive any treatment. The levels of colonic MDA (malondialdehyde), MPO (myeloperoxidase) activity, and IL-1β (interleukin-1β) were evaluated and a stereological analysis of colonic tissues was performed. All of the dietary oils (EVOO, CaO, and RBO) were effective at ameliorating the rats' oxidative and inflammatory status (p < 0.05); however, EVOO (with or without genistein) prescription resulted in slightly better results, especially with regard to the inflammatory profile. Additionally, delivering genistein via an oil vehicle was more efficient at reducing MDA formation, MPO activity, and IL-1β concentration than genistein in aqueous solution. The quantitative analysis of colonic tissue was consistent with the biochemical analysis. Our findings suggest that the oral administration of EVOO, canola oil, and rice bran oil can attenuate the elevated IL-1β levels and oxidative damage in induced colitis. Moreover, genistein fortified oils, especially EVOO, showed more beneficial effects in decreasing these markers in comparison with the pure oils or genistein (aqueous solution).

Characterization of antihypertensive and cardioprotective effects of extra virgin olive oil against doxorubicin induced cardiomyopathy in rats

Context: The medicinal uses of olive fruit oil (Olea europaea) are clearly documented as an anti-inflammatory, anti-diabetic (type-2 DM), and to protect against heart diseases. Aims: To evaluate the therapeutic influence of extra virgin olive oil (EVOO) as an antihypertensive and cardioprotective against doxorubicin (DXR) induced cardiomyopathy in rats. Methods: Wistar rats were divided into five groups as group 1 (normal control), group 2 (disease control i.e., DXR-treated) and groups 3, 4 and 5 as therapeutic groups (i.e., DXR- treated rats plus 2.5%, 5%, and 10% EVOO in diet respectively). Cardiac injury was induced by the administration of DXR. Cardioprotective, anti-hypertensive and antioxidant potential of EVOO were studied by measuring different blood, serum, and tissue biomarkers, enzymes and hemodynamic parameters in disease control and experimental rat groups. Results: Hemodynamic parameters were significantly reduced in rats administered with 2.5%, 5%, and 10% EVOO as compared to group 2 rats at p&lt;0.05, p&lt;0.01, and p&lt;0.001 respectively. Serum levels of creatinine kinase, troponin T, CK-MB and LDH were found markedly reduced in rats fed with 10% dietary EVOO as compared to disease control rats (p&lt;0.01). Serum levels of antioxidant enzymes like GSH and SOD were found significantly higher in group 5 rats as compared to group 2 at p&lt;0.01, and p&lt;0.001, respectively. Conclusions: Dietary administration of EVOO has the potential to reduce drug-induced cardiomyopathies and sustained use of EVOO in diet could be cardioprotective and useful against high blood pressure.

Extra-Virgin Olive Oil Modifies the Changes Induced in Non-Nervous Organs and Tissues by Experimental Autoimmune Encephalomyelitis Models.

This study reveals the existence of oxidative stress (reactive oxygen species (ROS)) in non-nervous organs and tissues in multiple sclerosis (MS) by means of a model of experimental autoimmune encephalomyelitis (EAE) in rats. This model reproduces a similar situation to MS, as well as its relationship with intestinal microbiota starting from the changes in bacterial lipopolysaccharide levels (LPS) in the outer wall of the gram-negative bacteria. Finally, the administration of extra-virgin olive oil (EVOO), hydroxytirosol (HT), and oleic acid (OA) exert beneficial effects. Twenty-five Dark Agouti two-month-old male rats, weighing around 190 g, were distributed into the following groups: Control, EAE (experimental autoimmune encephalomyelitis group), EAE + EVOO, EAE + HT, and EAE + OA. The glutathione redox system with the EAE was measured in heart, kidney, liver, and small and large intestines. The LPS and the correlation with oxidative stress in the small and large intestines were also investigated. The results showed that (1) the oxidative damage in the EAE model affects non-nervous organs and tissues; (2) The LPS is related to inflammatory phenomena and oxidative stress in the intestinal tissue and in other organs; (3) The administration of EVOO, HT, and OA reduces the LPS levels at the same time as minimizing the oxidative damage; (4) EVOO, HT, and OA improve the disease’s clinical score; and (5) on balance, EVOO offers a better neuroprotective effect.