The Anti-inflammatory Effect of Polyphenolics Olive Leaf Extracts Olea europaea L.

2021 ◽  
Author(s):  
Y. Aissaoui ◽  
Y. Boukhari ◽  
M. A. Mahi
Keyword(s):  
Olea Europaea ◽  
Acute Inflammation ◽  
Inflammatory Activity ◽  
Olive Leaves ◽  
Leaf Extracts ◽  
Polyphenolic Extract ◽  
Significant Difference ◽  
Anti Inflammatory ◽  
Inflammatory Effect ◽  
Olea Europaéa

This study was to evaluate the anti-inflammatory effect of the polyphenolic extract of olive leaves Olea europaea L. In vivo experiments were performed on the model of acute inflammation edema of the paw of male Wistar rats following inflammation induced by the injection of carrageenan. The anti-inflammatory effect is carried out by the injection of the polyphenolic extracts of olive leaves Olea europaea L. at different doses 50 mg/kg, 100 mg/kg and 150 mg/kg, the injection was carried out 30 min before induction of acute inflammation with carrageenan at 1%. The results obtained were compared with those of Diclofenac and those of the physiological control. Injection of carrageenan resulted in a significant increase in the claw leg volume of 46.24 ± 23.8%, 66.78 ± 29.69% and 90.31 ± 46.51%, respectively at 1 h, 2 h, and 3 h. The results showed that the inflammatory activity of the polyphenolic extracts of olive leaves was dose dependent. The 150 mg/kg Olea europaea L. extract of polyphenolic has an anti-inflammatory activity which results in an 88% decrease in edema. This decrease is significantly similar to that of Diclofenac® 97% confirmed that the polyphenolic extracts of Olea europaea L. leaves have anti-inflammatory activities comparable to that of Diclofenac® with a non-significant difference (p < 0.05), this anti-inflammatory effect remains lower than that of Diclofenac®.

scholarly journals Optimization of Ultrasound-Assisted Extraction of Flavonoids from Olive (Olea europaea) Leaves, and Evaluation of Their Antioxidant and Anticancer Activities

Molecules ◽  
2018 ◽  
Vol 23 (10) ◽  
pp. 2513 ◽  
Author(s):  
Bixia Wang ◽  
Jipeng Qu ◽  
Siyuan Luo ◽  
Shiling Feng ◽  
Tian Li ◽  
...  
Keyword(s):  
Olea Europaea ◽  
Maximum Yield ◽  
Flavonoid Compound ◽  
Anticancer Activities ◽  
Olive Leaves ◽  
Ultrasound Assisted Extraction ◽  
Assisted Extraction ◽  
Significant Difference ◽  
Ultrasound Assisted ◽  
Olea Europaéa

Olea europaea leaves are the major byproduct of olive farming. In this study, ultrasound-assisted extraction of flavonoids from olive leaves was optimized using response surface methodology, and the flavonoid compounds and their antioxidant and anticancer activities were investigated by high performance liquid chromatography. The results showed that the optimized conditions for achieving the maximum yield of flavonoids (74.95 mg RE/g dm) were 50 °C temperature, 270 W power, 50 min time, and 41 mL/g liquid-solid ratio. There was a significant difference in the total flavonoid content between the aged and young leaves harvested in April and July, and six main components were quantified. Among them, luteolin-4’-O-glucoside was the most predominant flavonoid compound, followed by apigenin-7-O-glucoside and rutin. Olive leaves also contained small amounts of luteolin, apigenin, and quercetin. Additionally, excellent antioxidant activity was exhibited when tested with the DPPH assay; superoxide radical-scavenging ability and reducing power was also tested. The anticancer activity of the flavonoids was assessed using HeLa cervical cancer cells, and it was observed that increasing concentrations of olive leaf flavonoids resulted in decreased cancer cell viability. These results suggest that the flavonoids from olive leaves could be used as a potential source of natural antioxidants for the pharmaceutical and food industries.

In vivo anti-inflammatory effect and toxicological screening of Maytenus heterophylla and Maytenus senegalensis extracts

2010 ◽  
Vol 30 (7) ◽  
pp. 693-700 ◽  
Author(s):  
G. da Silva ◽  
M. Taniça ◽  
J. Rocha ◽  
R. Serrano ◽  
ET Gomes ◽  
...  
Keyword(s):  
Acute Toxicity ◽  
Inflammatory Diseases ◽  
Inflammatory Activity ◽  
Albino Rats ◽  
Toxicity Screening ◽  
Leaf Extracts ◽  
Maytenus Senegalensis ◽  
Anti Inflammatory ◽  
Inflammatory Effect

Maytenus heterophylla (Eckl & Zeyh.) Robson and Maytenus senegalensis (Lam). Exell are two African medicinal plants used to treat painful and inflammatory diseases. We evaluated the in vivo (per os) anti-inflammatory activity of M. heterophylla leaf, stem and root extracts and of M. senegalensis leaf and stem extracts. Additionally, we assessed their in vivo acute and sub-acute toxicities. Anti-inflammatory activities of ethanol extracts were determined in Wistar albino rats, by the carrageenan-induced paw oedema method. Acute and sub-acute toxicity screening of the extracts was evaluated in adult male CD-6 mice. Leaf extracts of M. heterophylla and M. senegalensis exhibited significant anti-inflammatory activity (120 mg/kg, per os), reducing oedema by 51% and 35%, respectively. While M. heterophylla extracts at 1200 mg/kg have shown to be non-toxic, M. senegalensis extracts indicated some toxicity. Our results show a significant anti-inflammatory effect of both M. heterophylla and M. senegalensis leaf extracts in a local model of acute inflammation and suggest the absence of acute and sub-acute toxicity signs of the M. heterophylla leaf extract (but not of M. senegalensis). Ongoing studies will surely shed some light into the mechanism of action of this active extract and establish its chemical fingerprint.

scholarly journals Chloroformic and Methanolic Extracts of Olea europaea L. Leaves Present Anti-Inflammatory and Analgesic Activities

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
R Chebbi Mahjoub ◽  
M. Khemiss ◽  
M. Dhidah ◽  
A. Dellaï ◽  
A. Bouraoui ◽  
...  
Keyword(s):  
Olea Europaea ◽  
Intraperitoneal Administration ◽  
Methanolic Extracts ◽  
Antinociceptive Effects ◽  
Anti Inflammatory ◽  
Analgesic Activities ◽  
Rats And Mice ◽  
Dose Dependent ◽  
Inflammatory Effect ◽  
Olea Europaéa

Olea europaea L. is used in traditional medicine in the Mediterranean areas. Its natural products are used in the treatment of different disorders, like fighting fever and some infectious diseases such as malaria, the treatment of arrhythmia, and relief of intestinal spasms. The aim of the current study is to investigate the possible anti-inflammatory and anatinociceptive effects of methanol and chloroformic extracts prepared from leaves of Olea europaea L. The anti-inflammatory and antinociceptive effects of the different extracts of Olea europaea leaves were assessed after intraperitoneal administration into rats and mice, using the carrageenan-induced paw edema model in rats to test the anti-inflammatory effect and the acetic acid-induced writhing in mice to test the analgesic effect. The chloroformic and methanolic leaves extracts, studied at the doses of 50, 100, and 200 mg/kg (Body Weight: BW), exhibited significant dose-dependent anti-inflammatory and analgesic activities. Based on the results obtained, it can be concluded that Olea europaea leaves extracts have anti-inflammatory and antinociceptive effects.

Reduction of paw edema and liver oxidative stress in carrageenan-induced acute inflammation by Lobaria pulmonaria and Parmelia caperata, lichen species, in mice

2019 ◽  
pp. 1-9
Author(s):  
Samira Salem ◽  
Essaid Leghouchi ◽  
Rachid Soulimani ◽  
Jaouad Bouayed
Keyword(s):  
Time Course ◽  
Acute Inflammation ◽  
Lichen Species ◽  
Paw Edema ◽  
Sod Activity ◽  
Edema Formation ◽  
Lobaria Pulmonaria ◽  
Anti Inflammatory ◽  
Endogenous Antioxidant ◽  
Inflammatory Effect

Abstract. Paw edema volume reduction is a useful marker in determining the anti-inflammatory effect of drugs and plant extracts in carrageenan-induced acute inflammation. In this study, the anti-inflammatory effect of Lobaria pulmonaria (LP) and Parmelia caperata (PC), two lichen species, was examined in carrageenan-induced mouse paw edema test. Compared to the controls in carrageenan-induced inflammation (n = 5/group), our results showed that pretreatment by single oral doses with PC extract (50–500 mg/kg) gives better results than LP extract (50–500 mg/kg) in terms of anti-edematous activity, as after 4 h of carrageenan subplantar injection, paw edema formation was inhibited at 82–99% by PC while at 35–49% by LP. The higher anti-inflammatory effect of PC, at all doses, was also observed on the time-course of carrageenan-induced paw edema, displaying profile closely similar to that obtained with diclofenac (25 mg/kg), an anti-inflammatory drug reference (all p < 0.001). Both LP and PC, at all doses, significantly ameliorated liver catalase (CAT) activity (all p < 0.05). However, superoxide dismutase (SOD) activity, glutathione peroxidase (GPx) activity and glutathione (GSH) levels were found increased in liver of PC- compared to LP-carrageenan-injected mice. Our findings demonstrated on one hand higher preventive effects of PC compared to LP in a mouse carrageenan-induced inflammatory model and suggested, on the other hand, that anti-inflammatory effects elicited by the two lichens were closely associated with the amelioration in the endogenous antioxidant status of liver.

scholarly journals Microbiological Quality of Chicken Meat Fed with Olive Leaves (Olea europaea L.)

2020 ◽  
Author(s):  
Cristiane Marangoni ◽  
Alexandre José Cichoski ◽  
Juliano Smanioto Barin
Keyword(s):  
Olea Europaea ◽  
Microbiological Quality ◽  
Chicken Meat ◽  
Olive Leaves ◽  
Olea Europaea L ◽  
Olea Europaéa

Identification of phytoconstituents of Tragia involucrata leaf extracts and evaluate their correlation with anti-inflammatory & antioxidant properties

2021 ◽  
Vol 20 ◽  
Author(s):  
Vinodhini Velu ◽  
Swagata Banerjee ◽  
Vidya Rajendran ◽  
Gaurav Gupta ◽  
Dinesh Kumar Chellappan ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Ethyl Acetate ◽  
Petroleum Ether ◽  
Ethyl Acetate Extract ◽  
Petroleum Ether Extract ◽  
Inflammatory Activity ◽  
Ether Extract ◽  
Membrane Stabilization ◽  
Leaf Extracts ◽  
Anti Inflammatory

Aims: The present investigation was aimed at exploring the phytoconstituents using Gas Chromatography Mass Spectroscopy and to evaluate antioxidant and anti-inflammatory properties of the leaf extracts. Materials and Methods: The extracts were obtained sequentially with petroleum ether, ethyl acetate and water using soxhlet apparatus. The anti-inflammatory property of the identified compounds using GC- MS spectroscopy was evaluated in silico. The antioxidant activity was performed by DPPH and H2O2 method whereas anti-inflammatory study was carried out by HRBC membrane stabilization method. Terpenoids were found to be major constituents in petroleum ether extract while, phenols and flavonoids were predominantly found in ethyl acetate extract. Results and Discussion: The GC-MS analysis of the extract revealed six major molecules including Squalene, 19β, 28- epoxyleanan-3-ol and 2-tu-Butyl-5-chloromethyl-3-methyl-4-oxoimidazolidine-1-carboxylic acid. The ethyl acetate extract showed a significant antioxidant activity (P<0.01) in both DPPH method (70.87 %) and H2O2 method (73.58%) at 200 µg mL-1 . Increased membrane stabilization of petroleum ether extract was observed in the in vitro anti-inflammatory activity study. A strong relationship between the terpenoid content and anti-inflammatory activity was obtained from the correlation (0.971) and docking study. Conclusion: These results justify T. involucrata to be a rich source of terpenoids with potent antiinflammatory property.

Complement factor C5a exerts an anti-inflammatory effect in acute pancreatitis and associated lung injury

2001 ◽  
Vol 280 (5) ◽  
pp. G974-G978 ◽  
Author(s):  
Madhav Bhatia ◽  
Ashok K. Saluja ◽  
Vijay P. Singh ◽  
Jean-Louis Frossard ◽  
Hong-Sik Lee ◽  
...  
Keyword(s):  
Acute Pancreatitis ◽  
Lung Injury ◽  
Acute Inflammation ◽  
Complement Factor ◽  
Neutrophil Sequestration ◽  
C5a Receptors ◽  
Acinar Cell Necrosis ◽  
Anti Inflammatory ◽  
Type Strains ◽  
Inflammatory Effect

Complement factor C5a acting via C5a receptors (C5aR) is recognized as an anaphylotoxin and chemoattractant that exerts proinflammatory effects in many pathological states. The effects of C5a and C5aR in acute pancreatitis and in pancreatitis-associated lung injury were evaluated using genetically altered mice that either lack C5aR or do not express C5. Pancreatitis was induced by administration of 12 hourly injections of cerulein (50 μg/kg ip). The severity of pancreatitis was determined by measuring serum amylase, neutrophil sequestration in the pancreas, and acinar cell necrosis. The severity of lung injury was evaluated by measuring neutrophil sequestration in the lung and pulmonary microvascular permeability. In both strains of genetically altered mice, the severity of pancreatitis and pancreatitis-associated lung injury was greater than that noted in the comparison wild-type strains of C5aR- and C5-sufficient animals. This exacerbation of injury in the absence of C5a function indicates that, in pancreatitis, C5a exerts an anti-inflammatory effect. Potentially, C5a and its receptor are capable of both promoting and reducing the extent of acute inflammation.

scholarly journals Study to Investigate the anti-inflammatory effect of Codelac® Broncho with Thymus Serpyllum (elixir) in comparison with reference drug Fenspiride (syrup) using accute Carrageenan-induced Paw Inflammation Model

2019 ◽  
Vol 5 (1) ◽  
pp. 45-52
Author(s):  
Pavel D. Kolesnichenko ◽  
Anna A. Peresypkina ◽  
Artem A. Poromov ◽  
Elena N. Kareva ◽  
Alexey N. Demidenko
Keyword(s):  
Inflammatory Activity ◽  
C Reactive Protein ◽  
Reference Drug ◽  
Reactive Protein ◽  
Model Control ◽  
Anti Inflammatory ◽  
Thymus Serpyllum ◽  
Carrageenan Inflammation ◽  
Subplantar Injection ◽  
Inflammatory Effect

Introduction: Evaluation of anti-inflammatory action of Codelac® Broncho with Thymus Serpyllum (elixir) in comparison with Fenspiride was carried out on the model of acute carrageenan inflammation of the paws in rats. Materials and methods: Edema was caused by subplantar injection of 0.1 ml of 1% λ- carrageenan gel into the hind paw. The severity of edema was assessed by using 37140 plethysmometer (UGO BASILE, Italy). The measurements were performed before edema induction and 1, 2, 4, 12, 24, 48, 72, 96 and 120 hours afterwards. Anti-inflammatory activity of the drugs was also evaluated based on the analysis of rats’ blood, C-reactive protein concentration and histological examination results. Results and discussion: A decrease in the paw volume increment was revealed in the group with the studied drug in comparison with the group with the carrageenan edema model (control) 4, 12, 24 hours after injection of carrageenan (p&lt;0.05). As a result of plethysmometry, a more pronounced anti-inflammatory effect of the studied drug than that of Fenspiride was revealed. There was a significant decrease in the levels of leukocytes (p&lt;0.05), lymphocytes (p&lt;0.05), monocytes (p&lt;0.05) and neutrophils (p&lt;0.05) in the group with the studied drug compared to those the the control 48 hours after the initiation of edema, while in the group with Fenspiride, there was only a decrease in the levels of leukocytes (p&lt;0.05) and lymphocytes (p&lt;0.05). There were no differences in the concentration of C-reactive protein between the groups. Conclusion: The obtained data indicate a more pronounced anti-inflammatory activity of Codelac® Broncho with Thymus Serpyllum in comparison with Fenspiride, on the model of acute carrageenan inflammation of the paw in rats.

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