scholarly journals In vitro and in vivo evaluation of antioxidant activity of Petasites japonicus Maxim. flower buds extracts

2019 ◽  
Vol 84 (3) ◽  
pp. 621-632 ◽  
Author(s):  
Miki Hiemori-Kondo ◽  
Mika Nii
Keyword(s):  
Antioxidant Activity ◽  
Flower Buds ◽  
In Vivo Evaluation ◽  
Petasites Japonicus

scholarly journals Modification of In Vitro and In Vivo Antioxidant Activity by Consumption of Cooked Chickpea in a Colon Cancer Model

Nutrients ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2572 ◽  
Author(s):  
María S. Cid-Gallegos ◽  
Xariss M. Sánchez-Chino ◽  
Isela Álvarez-González ◽  
Eduardo Madrigal-Bujaidar ◽  
Verónica R. Vásquez-Garzón ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Antioxidant Activity ◽  
Nutritional Composition ◽  
Standard Diet ◽  
In Vivo Evaluation ◽  
Phytochemical Compounds ◽  
Nutritional Compounds ◽  
In Vitro Antioxidant Activity

Chickpea has been classified as a nutraceutical food due to its phytochemical compounds, showing antioxidant, anti-inflammatory, and anticancer activity. To investigate this, we evaluated the effect of cooking on the nutritional and non-nutritional composition and the in vitro and in vivo antioxidant activity of chickpea seed. The latter was determined by the variation in the concentration of nitric oxide (NO), oxidized carbonyl groups (CO), malondialdehyde (MDA), and the expression of 4-hydroxy-2-nonenal (4-HNE) in the colon of male BALB/c mice fed with a standard diet with 10 and 20% cooked chickpea (CC). We induced colon cancer in mice by administering azoxymethane/dextran sulfate sodium (AOM/DSS); for the evaluation, these were sacrificed 1, 7, and 14 weeks after the induction. Results show that cooking does not significantly modify (p < 0.05) nutritional compounds; however, it decreases the concentration of non-nutritional ones and, consequently, in vitro antioxidant activity. The in vivo evaluation showed that animals administered with AOM/DSS presented higher concentrations of NO, CO, MDA, and 4-HNE than those in animals without AOM/DSS administration. However, in the three evaluated times, these markers were significantly reduced (p < 0.05) with CC consumption. The best effect on the oxidation markers was with the 20% CC diet, demonstrating the antioxidant potential of CC.

scholarly journals PHYTOCHEMICAL EVALUATION AND ANTIOXIDANT SCREENING STUDIES OF OCIMUM TENUIFLORUM LINN SEEDS

2017 ◽  
Vol 10 (16) ◽  
pp. 76 ◽  
Author(s):  
Jyotsana Sharma ◽  
Navneet Khurana ◽  
Neha Sharma ◽  
Rakesh Garg
Keyword(s):  
Antioxidant Activity ◽  
In Vivo Evaluation ◽  
Pathological Conditions ◽  
Dpph Method ◽  
Physicochemical Evaluation ◽  
Ocimum Tenuiflorum ◽  
Cell Inhibition ◽  
In Vitro Antioxidant Activity

  Objective: In the existing study, Ocimum tenuiflorum was assessed for its antioxidant activity. This activity was assessed using the 2,2-diphenyl-1- picrylhydrazyl (DPPH) method. The drug was identified and standardized on the basis of organoleptic, negligible characters and its quantitative physicochemical standards.Methods: Preliminary phytochemical screening was also carried out to examine out the presence of various phytoconstituents. It revealed the presence of alkaloids, phytosterols, resin, flavonoids, tannins, diterpenes, and protein in the seed extract. DPPH method was done used for evaluating the antioxidant activity.Results: It has been observed that different concentrations (100, 200, 300, 400, and 500 μg/mL) used had shown 82.1%, 83.4%, 86.6%, 89.1%, and 93.2% of cell inhibition, respectively.Conclusion: Thus, the present study on pharmacognostic standardization, physicochemical evaluation and in vitro antioxidant activity of O. tenuiflorum seed would be useful to supplement information in regard to its in vivo evaluation for different pathological conditions.

scholarly journals In vitro and in vivo evaluation of enzymatic and antioxidant activity, cytotoxicity and genotoxicity of curcumin-loaded solid dispersions

2019 ◽  
Vol 125 ◽  
pp. 29-37 ◽  
Author(s):  
Igor Silva de Sá ◽  
Ana Paula Peron ◽  
Fernanda Vitória Leimann ◽  
Getúlio Nicola Bressan ◽  
Bárbara Nunes Krum ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Solid Dispersions ◽  
In Vivo Evaluation

In vitro and in vivo evaluation of the anti-inflammatory effects of Arzanol from Helichrysum italicum

Planta Medica ◽  
2010 ◽  
Vol 76 (12) ◽  
Author(s):  
J Bauer ◽  
F Dehm ◽  
A Koeberle ◽  
F Pollastro ◽  
G Appendino ◽  
...  
Keyword(s):  
In Vivo Evaluation ◽  
Anti Inflammatory

Antioxidant Activity, Phenolic Content and Hematoprotective Effects of Cleome arabica Polyphenolic Leaf Extract

2019 ◽  
Author(s):  
C. Tigrine ◽  
A. Kameli
Keyword(s):  
Antioxidant Activity ◽  
Biological Effects ◽  
Reducing Power ◽  
Hematological Toxicity ◽  
Protective Effects ◽  
Ferrous Ions ◽  
Polyphenolic Extract ◽  
Cleome Arabica

In this study a polyphenolic extract from Cleome arabica leaves (CALE) was investigated for its antioxidant activity in vitro using DPPH•, metal chelating and reducing power methods and for its protective effects against AraC-induced hematological toxicity in vivo using Balb C mice. Results indicated that CALE exhibited a strong and dose-dependent scavenging activity against the DPPH• free radical (IC50 = 4.88 μg/ml) and a high reducing power activity (EC50 = 4.85 μg/ml). Furthermore, it showed a good chelating effects against ferrous ions (IC50 = 377.75 μg/ml). The analysis of blood showed that subcutaneous injection of AraC (50 mg/kg) to mice during three consecutive days caused a significant myelosupression (P < 0.05). The combination of CALE and AraC protected blood cells from a veritable toxicity. Where, the number of the red cells, the amount of hemoglobin and the percentage of the hematocrite were significantly high. On the other hand, AraC cause an elevation of body temperature (39 °C) in mice. However, the temperature of the group treated with CALE and AraC remained normal and did not exceed 37.5 °C. The observed biological effects of CALE, in vitro as well as in vivo, could be due to the high polyphenol and flavonoid contents. In addition, the antioxidant activity of CALE suggested to be responsible for its hematoprotective effect.

Fenofibrate Solid Dispersion for Improving Oral Bioavailability: Preparation, and Characterization and in vivo Evaluation

2020 ◽  
Vol 13 (5) ◽  
pp. 5102-5109
Author(s):  
Venu Madhav K ◽  
Somnath De ◽  
Chandra Shekar Bonagiri ◽  
Sridhar Babu Gummadi
Keyword(s):  
Oral Bioavailability ◽  
Oral Delivery ◽  
Solid Dispersions ◽  
In Vitro Release ◽  
Aqueous Solubility ◽  
Water Soluble ◽  
Scanning Calorimetry ◽  
In Vivo Evaluation

Fenofibrate (FN) is used in the treatment of hypercholesterolemia. It shows poor dissolution and poor oral bioavailability after oral administration due to high liphophilicity and low aqueous solubility. Hence, solid dispersions (SDs) of FN (FN-SDs) were develop that might enhance the dissolution and subsequently oral bioavailability. FN-SDs were prepared by solvent casting method using different carriers (PEG 4000, PEG 6000, β cyclodextrin and HP β cyclodextrin) in different proportions (0.25%, 0.5%, 0.75% and 1% w/v). FN-SDs were evaluated solubility, assay and in vitro release studies for the optimization of SD formulation. Differential scanning calorimetry (DSC), powder X-ray diffraction (PXRD) and scanning electron microscopy (SEM) analysis was performed for crystalline and morphology analysis, respectively. Further, optimized FN-SD formulation evaluated for pharmacokinetic performance in Wistar rats, in vivo in comparison with FN suspension.  From the results, FN-SD3 and FN-SD6 have showed 102.9 ±1.3% and 105.5±3.1% drug release, respectively in 2 h. DSC and PXRD studies revealed that conversion of crystalline to amorphous nature of FN from FT-SD formulation. SEM studies revealed the change in the orientation of FN when incorporated in SDs. The oral bioavailability FN-SD3 and FN-SD6 formulations exhibited 2.5-folds and 3.1-folds improvement when compared to FN suspension as control. Overall, SD of FN could be considered as an alternative dosage form for the enhancement of oral delivery of poorly water-soluble FN.

Design and In vivo Evaluation of Palonosetron HCl Mouth Dissolving Films in the Management of Chemotherapy-Induced Vomiting

2017 ◽  
Vol 10 (6) ◽  
pp. 3929-3936
Author(s):  
Y. Srinivasa Rao ◽  
K. Adinarayana Reddy
Keyword(s):  
Drug Release ◽  
Patient Compliance ◽  
Onset Of Action ◽  
In Vivo Evaluation ◽  
Disintegration Time ◽  
In Vitro Drug Release ◽  
Surface Ph ◽  
Drug Content

Fast dissolving oral delivery systems are solid dosage forms, which disintegrate or dissolve within 1 minute in the mouth without drinking water or chewing. Mouth dissolving film (MDF) is a better alternate to oral disintegrating tablets due to its novelty, ease of use and the consequent patient compliance. The purpose of this work was to develop mouth dissolving oral films of palonosetron HCl, an antiemetic drug especially used in the prevention and treatment of chemotherapy-induced nausea and vomiting. In the present work, the films were prepared by using solvent casting method with various polymers HPMC E3, E5 & E15 as a film base synthetic polymer, propylene glycol as a plasticizer and maltodextrin and other polymers. Films were found to be satisfactory when evaluated for thickness, in vitro drug release, folding endurance, drug content and disintegration time. The surface pH of all the films was found to be neutral. The in vitro drug release of optimized formulation F29 was found to be 99.55 ± 6.3 7% in 7 min. The optimized formulation F29 also showed satisfactory surface pH, drug content (99.38 ± 0.08 %), disintegration time of 8 seconds and good stability. FTIR data revealed that no interaction takes place between the drug and polymers used in the optimized formulation. In vitro and in vivo evaluation of the films confirmed their potential as an innovative dosage form to improve delivery and quick onset of action of Palonosetron Hydrochloride. Therefore, the mouth dissolving film of palonosetron is potentially useful for the treatment of emesis disease where quick onset of action is desired, also improved patient compliance.

Sign in / Sign up

Export Citation Format

Share Document