scholarly journals Antidiabetic and antioxidant activity of Rhizophora mucronata leaves (Indian sundarban mangrove): An in vitro and in vivo study

2016 ◽  
Vol 37 (1) ◽  
pp. 76 ◽  
Author(s):  
Anjan Adhikari ◽  
Moumita Ray ◽  
AnupKumar Das ◽  
TapasKumar Sur
Keyword(s):  
Antioxidant Activity ◽  
In Vivo Study ◽  
Rhizophora Mucronata ◽  
Sundarban Mangrove ◽  
Indian Sundarban

scholarly journals Antioxidant activity of aqueous extract of passion fruit (Passiflora edulis) leaves: In vitro and in vivo study

2013 ◽  
Vol 53 (2) ◽  
pp. 882-890 ◽  
Author(s):  
Juliana Kelly da Silva ◽  
Cinthia Baú Betim Cazarin ◽  
Talita C. Colomeu ◽  
Ângela Giovana Batista ◽  
Laura M.M. Meletti ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Aqueous Extract ◽  
Passion Fruit ◽  
In Vivo Study ◽  
Passiflora Edulis

In vitro and in vivo study on the antioxidant activity of dexrazoxane

2010 ◽  
Vol 64 (4) ◽  
pp. 259-263 ◽  
Author(s):  
Fabio Galetta ◽  
Ferdinando Franzoni ◽  
Giulia Cervetti ◽  
Francesco Regoli ◽  
Poupak Fallahi ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
In Vivo Study

scholarly journals Protective effect of Acampe praemorsa (Roxb.) Blatt. & McCann against oxidative stress

2021 ◽  
Vol 8 (3) ◽  
Author(s):  
U Praveen Kumar ◽  
GSN Koteswara Rao ◽  
A Rajasekhar Reddy ◽  
K Umasankar ◽  
Y Vangoori
Keyword(s):  
Antioxidant Activity ◽  
Free Radicals ◽  
Reducing Power ◽  
The Body ◽  
In Vivo Study ◽  
Oxidative Enzymes ◽  
Hydroalcoholic Extract ◽  
Study Results

The current study was carried to make available phytochemical information and evaluation of antioxidant activity of Acampe praemorsa (Roxb.) Blatt. & McCann. The phytochemical analysis was carried out using procedures and quantified phenolic and alkaloid contents. The antioxidant activity was evaluated by in-vitro and in-vivo studies. The In-vitro antioxidant activity was carried on free radicals such as superoxide, hydroxyl DPPH, hydrogen peroxide, evaluation of reducing power. In-vivo study was carried on albino Wistar rats with different doses of extracts. The results provide that, A. praemorsa extracts have diversified phytochemicals in extracts like steroids, alkaloids, phenolics, glycosides, oils, quinones, tannins etc. The hydroalcoholic extract has more phenolic (26.80±0.51) and alkaloid (20.59±0.22) contents. The antioxidant activity results provide information that the extracts possess concentration dependent activity on tested free radicals. The hydroalcoholic extract has more protective nature against superoxide, DPPH, H2O2 free radicals and reducing power but ethyl acetate extract has more potential against hydroxyl free radical than hydroalcoholic extract. The extracts were found to be safe on toxic studies and In-vivo study results and they play significant role in controlling the oxidative enzymes such as catalase, superoxide dismutase, lipid peroxidation (malonaldehyde) in the body. Thus, it was determined that A. praemorsa have potential bioactive compounds and antioxidant activity.

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.

Formulation and Evaluation of Atorvastatin Calcium-Poly-ε-Caprolactone Nanoparticles Loaded Ocular Inserts for Sustained Release and Antiinflammatory Efficacy

2020 ◽  
Vol 21 (15) ◽  
pp. 1688-1698
Author(s):  
Germeen N.S. Girgis
Keyword(s):  
Sustained Release ◽  
In Vitro Release ◽  
Pluronic F127 ◽  
In Vivo Study ◽  
Average Weight ◽  
Drug Release Profile ◽  
Atorvastatin Calcium ◽  
Anti Inflammatory

Purpose: The work was performed to investigate the feasibility of preparing ocular inserts loaded with Poly-ε-Caprolactone (PCL) nanoparticles as a sustained ocular delivery system. Methods: First, Atorvastatin Calcium-Poly-ε-Caprolactone (ATC-PCL) nanoparticles were prepared and characterized. Then, the optimized nanoparticles were loaded within inserts formulated with Methylcellulose (MC) and Polyvinyl Alcohol (PVA) by a solvent casting technique and evaluated physically, for in-vitro drug release profile. Finally, an in-vivo study was performed on the selected formulation to prove non-irritability and sustained ocular anti-inflammatory efficacy compared with free drug-loaded ocuserts. Results: The results revealed (ATC-PCL) nanoparticles prepared with 0.5% pluronic F127 were optimized with 181.72±3.6 nm particle size, 0.12±0.02 (PDI) analysis, -27.4± 0.69 mV zeta potential and 62.41%±4.7% entrapment efficiency. Nanoparticles loaded ocuserts manifested compatibility between drug and formulation polymers. Moreover, formulations complied with average weight 0.055±0.002 to 0.143±0.023 mg, and accepted pH. ATC-PCL nanoparticles loaded inserts prepared by 5% MC showed more sustained, prolonged in-vitro release over 24h. In-vivo study emphasized non-irritability, ocular anti-inflammatory effectiveness represented by smaller lid closure scores, and statistically significant lowering in PMN count after 3h. Conclusion: These findings proposed a possibly simple, new and affordable price technique to prepare promising (ATC-PCL) nanoparticles loaded inserts to achieve sustained release with prolonged antiinflammatory efficacy.

A Review on Melatonin’s Effects in Cancer: Potential Mechanisms

2018 ◽  
Vol 18 (7) ◽  
pp. 985-992 ◽  
Author(s):  
Aysegul Hanikoglu ◽  
Ertan Kucuksayan ◽  
Rana Cagla Akduman ◽  
Tomris Ozben
Keyword(s):  
Systematic Review ◽  
Antioxidant Activity ◽  
Membrane Receptors ◽  
Cancer Development ◽  
Secretory Product ◽  
Prevention And Treatment ◽  
G Protein Coupled

This systematic review aims to elucidate the role of melatonin (N-acetyl-5-metoxy-tryptamine) (MLT) in the prevention and treatment of cancer. MLT is a pineal gland secretory product, an evolutionarily highly conserved molecule; it is also an antioxidant and an impressive protector of mitochondrial bioenergetic activity. MLT is characterized by an ample range of activities, modulating the physiology and molecular biology of the cell. Its physiological functions relate principally to the interaction of G Protein-Coupled MT1 and MT2 trans-membrane receptors (GPCRs), a family of guanidine triphosphate binding proteins. MLT has been demonstrated to suppress the growth of various tumours both, in vivo and in vitro. In this review, we analyze in depth, the antioxidant activity of melatonin, aiming to illustrate the cancer treatment potential of the molecule, by limiting or reversing the changes occurring during cancer development and growth.

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