scholarly journals A POWERFUL ELISA TECHNIQUE TO TEST THE POTENTIAL OF EXTRA VIRGIN OLIVE OIL IN REDUCING TNF-Α LEVEL AND EDEMA VOLUME IN MALE Rattus norvegicus EXPOSED TO CARRAGEENAN

Author(s):  
Andina Putri Aulia ◽  
Suprapto Maat ◽  
Aryati

Extra virgin Olive oil is extracted from fruit that can be used as anti-inflammatory agent. This research aimed to test the potential of extra virgin olive oil in reducing edema volume and TNF-α plasma in carrageenan-induced rats. This research was purely experimental research with the post test control group design. A total of twenty eight Wistar rats were divided randomly into four treatment groups. Group I was a control negative group, while the group II, III, and IV were orally administered with extra virgin Olive oil at the dose of 0.9 ; 1.8 ; 2.7 mL/day, respectively. Paw edema was measured one hour before the rats was induced to carrageenan and every hour until four hours after it was induced to carrageenan. TNF-α plasma was measured at four hours. Analysis of the data was done by calculating the presentation of edema inhibition in every group, then the data was statistically analyzed by Anova, Repeated Anova, LSD and Kruskal Wallis test with 95% confidence interval. The result showed that extra virgin olive oil has an anti-inflammatory effect. The highest decrease in edema volume percentage was in group III (14.21%). There was a significant difference in the edema volume of all treatment groups at each time of the experiment with TNF-α value (p < 0.05). In conclusion, the administration of extra virgin olive oil can lower the volume of carrageenan-induced edema in rats depend on the dose. Also, the administration of extra virgin olive oil can be dose-dependent in reducing the levels of TNF-α in carrageenan-induced edema in rats.

2011 ◽  
Vol 106 (1) ◽  
pp. 33-36 ◽  
Author(s):  
Giuliana Trefiletti ◽  
Anna Rita Togna ◽  
Valentina Latina ◽  
Carolina Marra ◽  
Marcella Guiso ◽  
...  

Extra-virgin olive oil is an integral ingredient of the Mediterranean diet, and it has been suggested that its high consumption has beneficial effects on human health. Its protective effect, in particular against the development of CVD, has been related not only to the high content of oleic acid, but also to the antioxidant and anti-inflammatory properties of polyphenols. In order to verify the anti-inflammatory and anti-atherogenic properties of hydroxy-isochromans, a class of ortho-diphenols present in extra-virgin olive oil, we investigated the potential ability of 1-phenyl-6,7-dihydroxy-isochroman (L137) to modulate the production of key inflammatory mediators by human monocytes, by evaluating its in vitro effects on prostanoid (thromboxane A2 and PGE2) and cytokine (TNF-α) production. Its effect on the protein expression of the inducible form of cyclo-oxygenase-2 (COX-2), a pro-inflammatory enzyme responsible for elevated prostanoid levels, was also explored. The results showed that L137 significantly inhibited both prostanoid and TNF-α production in lipopolysaccharide-primed human monocytes in a dose-dependent manner, by inhibiting the COX activity of COX-2. We also demonstrated that the effects of the isochroman are mediated, at least partly, through the suppression of NF-κB activation leading to the down-regulation of the synthesis of COX-2.


Foods ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1993
Author(s):  
Álvaro Santana-Garrido ◽  
Claudia Reyes-Goya ◽  
Santiago Milla-Navarro ◽  
Pedro de la Villa ◽  
Helder André ◽  
...  

Inflammation plays a crucial role in the course of eye diseases, including many vascular retinopathies. Although olive oil is known to have beneficial effects against inflammatory processes, there is no information available on the anti-inflammatory potential of the wild olive tree (namely, acebuche (ACE) for the primitive Spanish lineages). Here we investigate the anti-inflammatory effects of ACE oil in the retina of a mouse model of arterial hypertension, which was experimentally induced by administration of L-NAME (NG-nitro-L-arginine-methyl-ester). The animals were fed supplements of ACE oil or extra virgin olive oil (EVOO, for comparative purposes). Retinal function was assessed by electroretinography (ERG), and different inflammation-related parameters were measured in the retina and choroid. Besides significant prevention of retinal dysfunction shown in ERG recordings, ACE oil-enriched diet upregulated the expression of the anti-inflammatory markers PPARγ, PPARα and IL-10, while reducing that of major proinflammatory biomarkers, IL-1β, IL-6, TNF-α and COX-2. This is the first report to highlight the anti-inflammatory properties of an ACE oil-enriched diet against hypertension-related retinal damage. Noteworthy, dietary supplementation with ACE oil yielded better results compared to a reference EVOO.


Biomedicines ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 862
Author(s):  
Mireia Urpi-Sarda ◽  
Rosa Casas ◽  
Emilio Sacanella ◽  
Dolores Corella ◽  
Cristina Andrés-Lacueva ◽  
...  

The intervention with the Mediterranean diet (MD) pattern has evidenced short-term anti-inflammatory effects, but little is known about its long-term anti-inflammatory properties at molecular level. This study aims to investigate the 3-year effect of MD interventions compared to low-fat diet (LFD) on changes on inflammatory biomarkers related to atherosclerosis in a free-living population with a high-risk of cardiovascular disease (CD). Participants (n = 285) in the PREDIMED trial were randomly assigned into three intervention groups: MD with extra-virgin olive oil (EVOO) or MD-Nuts, and a LFD. Fourteen plasma inflammatory biomarkers were determined by Luminex assays. An additional pilot study of gene expression (GE) was determined by RT-PCR in 35 participants. After 3 years, both MDs showed a significant reduction in the plasma levels of IL-1β, IL-6, IL-8, TNF-α, IFN-γ, hs-CRP, MCP-1, MIP-1β, RANTES, and ENA78 (p < 0.05; all). The decreased levels of IL-1β, IL-6, IL-8, and TNF-α after MD significantly differed from those in the LFD (p < 0.05). No significant changes were observed at the gene level after MD interventions, however, the GE of CXCR2 and CXCR3 tended to increase in the control LFD group (p = 0.09). This study supports the implementation of MD as a healthy long-term dietary pattern in the prevention of CD in populations at high cardiovascular risk.


Antioxidants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1016
Author(s):  
Stefania De Santis ◽  
Marina Liso ◽  
Giulio Verna ◽  
Francesca Curci ◽  
Gualtiero Milani ◽  
...  

Extra virgin olive oil (EVOO) represents one of the most important health-promoting foods whose antioxidant and anti-inflammatory activities are mainly associated to its polyphenols content. To date, studies exploring the effect of EVOO polyphenols on dendritic cells (DCs), acting as a crosstalk between the innate and the adaptive immune response, are scanty. Therefore, we studied the ability of three EVOO extracts (cv. Coratina, Cima di Mola/Coratina, and Casaliva), characterized by different polyphenols amount, to regulate DCs maturation in resting conditions or after an inflammatory stimulus. Cima di Mola/Coratina and Casaliva extracts were demonstrated to be the most effective in modulating DCs toward an anti-inflammatory profile by reduction of TNF and IL-6 secretion and CD86 expression, along with a down-modulation of Il-1β and iNOS expression. From factorial analysis results, 9 polyphenols were tentatively established to play a synergistic role in modulating DCs inflammatory ability, thus reducing the risk of chronic inflammation.


2018 ◽  
Vol 5 (5) ◽  
pp. 85
Author(s):  
Nabeeh A AlQahtani ◽  
Jimly James Kunjappu ◽  
Kholood Badr Al Ghamdi ◽  
Shreyas Tikare

Aim: The objective of this study is to compare the efficacy of oil pulling with virgin olive oil and chlorhexidine mouthwash in reducing plaque and gingivitis.Material and Methods: A total of sixty subjects satisfying the inclusion criteria were selected. The subjects were then randomly divided into two groups of thirty each. Group I used oil pulling with olive oil and Group II used 0.2% chlorhexidine as mouthwash. The plaque index and modified gingival index scores were measured at baseline, first week and second week.Results: The results showed that there was statistically significant reduction of mean plaque and gingivitis scores from baseline to first week and second week in both olive oil (p<0.05) and chlorhexidine group (p<0.05). There was significant difference in mean plaque scores between olive oil group and chlorhexidine group at second week (p<0.05). There was no significant difference in mean gingivitis scores between olive oil group and chlorhexidine group at second week (p<0.05).Conclusions: Oil pulling with virgin olive oil was found to be effective in reducing plaque and gingivitis. Regular and proper oil pulling with virgin olive oil can therefore be recommended as a routine home-based practice in promoting oral health.


Author(s):  
Adryan Fristiohady ◽  
Muhammad Hajrul Malaka ◽  
Andi Rizqa Wahyuni Safitri ◽  
Dewo Diha ◽  
Saripuddin Saripuddin ◽  
...  

Inflammation is the host's protective response to any stimulus that harms the body. Excessive inflammatory process causes tissue damage. Therefore, an anti-inflammatory agent is needed. The use of natural ingredients, especially sea sponges, is an option to reduce the side effects of anti-inflammatory agents. This utilization is related to the discovery of new agents. So, we tested the effect of the ethanol extract of Petrosia sp. as an anti-inflammatory agent. Animal induced with 1% carrageenan and left for 1 hour. After that the animals were divided into 6 groups (n = 4) and given oral treatment, namely: Group I (normal group); Group II (negative group); Group III (ethanol extract of Petrosia sp. Concentration of 0.05mg/ml); Group IV (ethanol extract of Petrosia sp. Concentration 0.1mg/ml); Group V (ethanol extract of Petrosia sp. Concentration 0.2mg/ml); and Group VI (positive group, Diclofenac Sodium). After 1 hour, the animals were measured for edema volume and plasma TNF-α levels. Based on the research conducted, the ethanol extract of Petrosia sp. decreased edema volume and plasma TNF-α levels in inflammatory mice. The concentration of 0.2mg/mL had a significant effect on the negative control used (p <0.05). On the other hand, Petrosia sp. indicates the presence of alkaloids, flavonoids, and steroids. They may play an important role in the anti-inflammatory process. Thus, it can be concluded that the ethanol extract of Petrosia sp. has anti-inflammatory activity.


2020 ◽  
Vol 14 (02) ◽  
pp. 294-298
Author(s):  
Maharani Laillyza Apriasari ◽  
Selviana Rizky Pramitha ◽  
Dewi Puspitasari ◽  
Diah Savitri Ernawati

Abstract Objective This study was designed to assess the anti-inflammatory effect of Musa acuminata through the expression of tumor necrosis factor-α (TNF-α) and nuclear factor kappa β (NF-κB) after 3 days of application of Musa acuminata stem extract (MASE) gel on oral mucosal wound. Materials and Methods An experimental study with post-test only control group design was conducted. Twenty male Rattus norvegicus (Wistar) were injured on their left buccal mucosa and treated three times a day with MASE gel of varying concentrations: 0% (as control), MASE 25%, MASE 37.5%, and MASE 50%. On day 3, a biopsy was performed on each mucosal wound for later immunohistochemical analysis for the expressions of TNF-α and NF-κB. Results The highest expression of TNF-α was observed in the control group (13.20 ± 1.79), while the lowest was in the treatment group using 50% MASE (6.40 ± 1.14). Meanwhile the comparison between treatment groups did not highlight any significant difference (p > 0.05). The highest expression of NF-κB was observed in the control group (13.20 ± 1.30), whereas the lowest was in the treatment group using MASE 50% (6.40 ± 1.14). NF-κB was significantly lower in the treatment group using MASE 50% when compared with other treatment groups (p < 0.05). Conclusion Application of MASE on mucosal wound reduces the expression of TNF-α and NF-κB at all concentrations. The anti-inflammatory effect of MASE 50% was the strongest one.


Nutrients ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2855 ◽  
Author(s):  
Sara Carpi ◽  
Egeria Scoditti ◽  
Marika Massaro ◽  
Beatrice Polini ◽  
Clementina Manera ◽  
...  

Inflammation of the adipose tissue plays an important role in the development of several chronic diseases associated with obesity. Polyphenols of extra virgin olive oil (EVOO), such as the secoiridoids oleocanthal (OC) and oleacein (OA), have many nutraceutical proprieties. However, their roles in obesity-associated adipocyte inflammation, the NF-κB pathway and related sub-networks have not been fully elucidated. Here, we investigated impact of OC and OA on the activation of NF-κB and the expression of molecules associated with inflammatory and dysmetabolic responses. To this aim, fully differentiated Simpson-Golabi-Behmel syndrome (SGBS) adipocytes were pre-treated with OC or OA before stimulation with TNF-α. EVOO polyphenols significantly reduced the expression of genes implicated in adipocyte inflammation (IL-1β, COX-2), angiogenesis (VEGF/KDR, MMP-2), oxidative stress (NADPH oxidase), antioxidant enzymes (SOD and GPX), leukocytes chemotaxis and infiltration (MCP-1, CXCL-10, MCS-F), and improved the expression of the anti-inflammatory/metabolic effector PPARγ. Accordingly, miR-155-5p, miR-34a-5p and let-7c-5p, tightly connected with the NF-κB pathway, were deregulated by TNF-α in both cells and exosomes. The miRNA modulation and NF-κB activation by TNF-α was significantly counteracted by EVOO polyphenols. Computational studies suggested a potential direct interaction between OC and NF-κB at the basis of its activity. This study demonstrates that OC and OA counteract adipocyte inflammation attenuating NF-κB activation. Therefore, these compounds could be novel dietary tools for the prevention of inflammatory diseases associated with obesity.


Sign in / Sign up

Export Citation Format

Share Document