scholarly journals Chemical characterization, antioxidant properties, anti-inflammatory activity, and enzyme inhibition of Ipomoea batatas L. leaf extracts

2017 ◽  
pp. 1-13 ◽  
Author(s):  
Gokhan Zengin ◽  
Marcello Locatelli ◽  
Azzurra Stefanucci ◽  
Giorgia Macedonio ◽  
Ettore Novellino ◽  
...  
Keyword(s):  
Enzyme Inhibition ◽  
Ipomoea Batatas ◽  
Antioxidant Properties ◽  
Chemical Characterization ◽  
Inflammatory Activity ◽  
Leaf Extracts ◽  
Anti Inflammatory

scholarly journals Antioxidant and Anti-Inflammatory Activities of Flavanones from Glycyrrhiza glabra L. (licorice) Leaf Phytocomplexes: Identification of Licoflavanone as a Modulator of NF-kB/MAPK Pathway

Antioxidants ◽  
2019 ◽  
Vol 8 (6) ◽  
pp. 186 ◽  
Author(s):  
Luca Frattaruolo ◽  
Gabriele Carullo ◽  
Matteo Brindisi ◽  
Sarah Mazzotta ◽  
Luca Bellissimo ◽  
...  
Keyword(s):  
Mapk Pathway ◽  
Antioxidant Properties ◽  
Health Spending ◽  
Glycyrrhiza Glabra ◽  
Inflammatory Activity ◽  
Leaf Extracts ◽  
Mitogen Activated Protein ◽  
Natural Remedies ◽  
Glycyrrhiza Glabra L ◽  
Anti Inflammatory

Inflammation represents an adaptive response generated by injuries or harmful stimuli. Natural remedies represent an interesting alternative to traditional therapies, involving several biochemical pathways. Besides, the valorization of agrochemical wastes nowadays seems to be a feasible way to reduce the health spending and improve the accessibility at bioactive natural compounds. In this context, the chemical composition of three Glycyrrhiza glabra L. (licorice) leaf extracts, obtained through maceration or ultrasound-assisted method (fresh and dried leaves) was investigated. A guided fractionation obtained three main components: pinocembrin, glabranin and licoflavanone. All the extracts showed similar antioxidant properties, evaluated by 2,2′-diphenyl-1-picrylhydrazyl (DPPH) or 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) Diammonium Salt (ABTS) assay, while, among the isolated compounds, licoflavanone exhibited the best antioxidant activity. The anti-inflammatory activity of the extracts and the purified compounds was investigated in lipopolysaccharide (LPS)-stimulated RAW 264.7 murine macrophages. Extract C and licoflavanone showed a good anti-inflammatory activity without affecting cell viability, as they decreased nitrite levels even when used at 12.5 μg/mL (p < 0.005) and 50 μM concentration (p < 0.001), respectively. Interestingly, licoflavanone markedly decreased pro-inflammatory cytokines and cyclooxygenase 2/inducible nitric oxide synthase (COX-2/iNOS) expression levels (p < 0.001). A modulation of nuclear factor kappa B/mitogen-activated protein kinases (NF-kB/MAPK) pathway underlay such behavior, highlighting the potential of this natural compound as a new scaffold in anti-inflammatory drug research.

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.

scholarly journals Scientific Evaluation of anti-inflammatory potential of Macrotyloma uniflorum seeds extracts

2020 ◽  
Vol 11 (SPL4) ◽  
pp. 1883-1888
Author(s):  
Anandarajagopal K ◽  
Abdullah Khan ◽  
Sugalia S ◽  
Bama Menon ◽  
Tan Ching Siang ◽  
...  
Keyword(s):  
Antioxidant Properties ◽  
Water Extract ◽  
Ethanol Extract ◽  
Inflammatory Activity ◽  
Leguminous Plant ◽  
Paw Edema ◽  
Reference Drug ◽  
Macrotyloma Uniflorum ◽  
Phenolic Constituents ◽  
Anti Inflammatory

Phytochemicals possessing the antioxidant properties naturally present in food attract a greater interest to healthcare researchers due to their desirable health effects on human health as they can be explored for protection against oxidative deterioration. Macrtotyloma uniflorum is a leguminous plant belonging to the family Fabaceae and commonly known as Horse gram. Aqueous and ethanol extracts of seeds of Macrotyloma uniflorum were evaluated for their anti-inflammatory effects using the scientific protocol on experimental rats. Extraction was carried out using the cold maceration method, and the anti-inflammatory activity was evaluated using a digital plethysmometer in the experimental rats injected with carrageenan to produce paw edema. Preliminary phytochemical studies confirmed the presence of various bioactive compounds such as alkaloids, glycosides, carbohydrates, proteins and amino acids, terpenoids, tannins, and phenolic compounds in both extracts while flavonoids were found only in ethanol extract. Both extracts of M. uniflorum seeds (200 mg/ml) significantly (p<0.01) reduced the paw edema volume induced by carrageenan. The ethanol extract of M. uniflorum seeds exhibited more potent anti-inflammatory activity than water extract, that might be due to the presence of flavonoids in ethanol extract. The activity of the extracts was compared with diclofenac sodium (10mg/kg b.wt.) as a reference drug. From the results, it may be suggested that the antioxidative potential of phenolic constituents and flavonoids is the primary factors for the anti-inflammatory activity of M. uniflorum seeds extracts.

scholarly journals SYNTHESIS, ANTIOXIDANT AND ANTI-INFLAMMATORY ACTIVITIES OF ETHYL 2-(2-CYANO-3- (SUBSTITUTED PHENYL)ACRYLAMIDO)-4,5-DIMETHYLTHIOPHENE-3-CARBOXYLATES

2017 ◽  
Vol 10 (7) ◽  
pp. 95 ◽  
Author(s):  
Madhavi K ◽  
Sree Ramya G
Keyword(s):  
Antioxidant Activity ◽  
Free Radical ◽  
Antioxidant Properties ◽  
Inflammatory Activity ◽  
Paw Edema ◽  
Standard Drug ◽  
Rat Paw Edema ◽  
Anti Inflammatory ◽  
Rat Paw

Objective: Objective of the study was to synthesize and evaluate a series of novel compounds, ethyl 2-(2-cyano-3-(substituted phenyl)acrylamido)- 4,5-dimethylthiophene-3-carboxylates, for in vitro antioxidant and in vivo anti-inflammatory activities.Methods: Ethyl 2-(2-cyano-3-(substituted phenyl)acrylamido)-4,5-dimethylthiophene-3-carboxylates were synthesized by knoevenagel condensation of active methylene group of ethyl 2-(2-cyanoacetamido)-4,5-dimethylthiophene-3-carboxylate with substituted benzaldehydes. The synthesized compounds were evaluated for their in vitro antioxidant properties in three different models, viz., reduction of 1,1-diphenyl-2-pycrylhydrazyl free radical, scavenging of nitric oxide free radical, and ferric ion-induced lipid peroxidation using rat brain homogenate. Few selected compounds with good antioxidant properties were pharmacologically evaluated for anti-inflammatory activity by carrageenan-induced rat paw edema model.Results: Clean and efficient synthetic procedure was used for the preparation of series of compounds. The structures of synthesized compounds were confirmed by infrared, 1H nuclear magnetic resonance and mass spectra. The antioxidant activity data revealed that the compounds of ethyl 2-(2-cyano-3-(substituted phenyl)acrylamido)-4,5-dimethylthiophene-3-carboxylate containing phenolic substitution showed greater antioxidant activity. Hence, the active compounds were evaluated for anti-inflammatory activity and found to possess good activity. The percentage inhibition of rat paw edema obtained for the evaluated compounds was in the range of 70.2-83.1, comparable to the standard drug diclofenac (85.0%).Conclusion: The use of inexpensive, eco-friendly and readily available reagents, easy work-up and high purity of products makes the procedure a convenient and robust method for the synthesis of title compounds. The compounds of ethyl 2-(2-cyano-3-(substituted phenyl)acrylamido)-4,5- dimethylthiophene-3-carboxylate containing phenolic substitution showed greater antioxidant and anti-inflammatory activities.

scholarly journals The Essential Oil and Hydrolats from Myristica fragrans Seeds with Magnesium Aluminometasilicate as Excipient: Antioxidant, Antibacterial, and Anti-inflammatory Activity

Foods ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 37 ◽  
Author(s):  
Inga Matulyte ◽  
Aiste Jekabsone ◽  
Lina Jankauskaite ◽  
Paulina Zavistanaviciute ◽  
Vytaute Sakiene ◽  
...  
Keyword(s):  
Essential Oil ◽  
Biological Activities ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Inflammatory Activity ◽  
Poly I:C ◽  
Bioactive Substances ◽  
Myristica Fragrans ◽  
Anti Inflammatory ◽  
Nutmeg Essential Oil

Nutmeg (Myristica fragrans) essential oil has antimicrobial, antiseptic, antiparasitic, anti-inflammatory, and antioxidant properties. We have recently demonstrated that hydrodistillation of nutmeg essential oil by applying magnesium aluminometasilicate as an excipient significantly increases both the content and amount of bioactive substances in the oil and hydrolats. In this study, we aimed to compare the antioxidant, antimicrobial, and anti-inflammatory activity of hydrolats and essential oil obtained by hydrodistillation in the presence and absence of magnesium aluminometasilicate as an excipient. The 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging method revealed that magnesium aluminometasilicate did not significantly improved antioxidant activity of both essential oil and hydrolat. Antibacterial efficiency was evaluated by monitoring growth of 15 bacterial strains treated by a range of dilutions of the essential oil and the hydrolats. Essential oil with an excipient completely inhibited the growth of E. faecalis, S. mutans (referent), and P. multocida, whereas the pure oil was only efficient against the latter strain. Finally, the anti-inflammatory properties of the substances were assessed in a fibroblast cell culture treated with viral dsRNR mimetic Poly I:C. The essential oil with an excipient protected cells against Poly I:C-induced necrosis more efficiently compared to pure essential oil. Also, both the oil and the hydrolats with aluminometasilicate were more efficient in preventing IL-6 release in the presence of Poly I:C. Our results show that the use of magnesium aluminometasilicate as an excipient might change and in some cases improve the biological activities of nutmeg essential oil and hydrolats.

Sign in / Sign up

Export Citation Format

Share Document