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Kumar A, Kaushik P, Incerpi S, Pedersen JZ, Goel S, Prasad AK, Rohil V, Parmar VS, Saso L, Len C. Evaluation of the Free Radical Scavenging Activities of Ellagic Acid and Ellagic Acid Peracetate by EPR Spectrometry. Molecules 2021; 26:molecules26164800. [PMID: 34443388 PMCID: PMC8399592 DOI: 10.3390/molecules26164800] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/25/2021] [Accepted: 08/04/2021] [Indexed: 11/16/2022] Open
Abstract
The purpose of this study was to examine the free radical scavenging and antioxidant activities of ellagic acid (EA) and ellagic acid peracetate (EAPA) by measuring their reactions with the radicals, 2,2-diphenyl-1-picrylhydrazyl and galvinoxyl using EPR spectroscopy. We have also evaluated the influence of EA and EAPA on the ROS production in L-6 myoblasts and rat liver microsomal lipid peroxidation catalyzed by NADPH. The results obtained clearly indicated that EA has tremendous ability to scavenge free radicals, even at concentration of 1 µM. Interestingly even in the absence of esterase, EAPA, the acetylated product of EA, was also found to be a good scavenger but at a relatively slower rate. Kinetic studies revealed that both EA and EAPA have ability to scavenge free radicals at the concentrations of 1 µM over extended periods of time. In cellular systems, EA and EAPA were found to have similar potentials for the inhibition of ROS production in L-6 myoblasts and NADPH-dependent catalyzed microsomal lipid peroxidation.
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Affiliation(s)
- Ajit Kumar
- Department of Chemistry, SRM University, Delhi-NCR, Haryana, 39, RGEC, Sonepat 131 029, India; (A.K.); (P.K.)
- Department of Biochemistry, V. P. Chest Institute, University of Delhi, Delhi 110 007, India; (S.G.); (V.R.)
| | - Preeti Kaushik
- Department of Chemistry, SRM University, Delhi-NCR, Haryana, 39, RGEC, Sonepat 131 029, India; (A.K.); (P.K.)
| | - Sandra Incerpi
- Department of Sciences, University of Rome “Roma Tre”, 00146 Rome, Italy;
| | - Jens Z. Pedersen
- Department of Biology, University of Rome “Tor Vergata”, Via della Ricerca, Scientifica 1, 00133 Rome, Italy;
| | - Sanjay Goel
- Department of Biochemistry, V. P. Chest Institute, University of Delhi, Delhi 110 007, India; (S.G.); (V.R.)
| | - Ashok K. Prasad
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi 110 007, India; (A.K.P.); (V.S.P.)
| | - Vishwajeet Rohil
- Department of Biochemistry, V. P. Chest Institute, University of Delhi, Delhi 110 007, India; (S.G.); (V.R.)
| | - Virinder S. Parmar
- Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi 110 007, India; (A.K.P.); (V.S.P.)
- Department of Chemistry and Environmental Science, Medgar Evers College, The City University of New York, 1638 Bedford Avenue, Brooklyn, NY 11225, USA
| | - Luciano Saso
- Department of Physiology and Pharmacology “Vittorio Erspamer”, Sapienza University, P. le. Aldo Moro 5, 00185 Rome, Italy;
| | - Christophe Len
- Institute of Chemistry for Life and Health Sciences, Chimie ParisTech, PSL Research University, CNRS, UMR8060, 11 rue Pierre et Marie Curie, F-75005 Paris, France
- Correspondence:
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Rossi M, Caruso F, Crespi EJ, Pedersen JZ, Nakano G, Duong M, McKee C, Lee S, Jiwrajka M, Caldwell C, Baffour F, Karlin DA, Lidoff G, Leone S, Balducci V, Miler J, Incerpi S. Probing antioxidant activity of 2'-hydroxychalcones: crystal and molecular structures, in vitro antiproliferative studies and in vivo effects on glucose regulation. Biochimie 2013; 95:1954-63. [PMID: 23851195 DOI: 10.1016/j.biochi.2013.07.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2013] [Accepted: 07/02/2013] [Indexed: 11/20/2022]
Abstract
In order to better understand the antioxidant behavior of a series of polyphenolic 2'-hydroxychalcones, we describe the results of several chemical and biological studies, in vitro and in vivo. Single crystal X-ray methods elucidated their molecular structures and important intermolecular interactions such as H-bonding and molecular stacking in the crystal structures that contribute to our knowledge in explaining antioxidant activity. The results of experiments using the 1,1-diphenyl-2-dipicrylhydrazyl (DPPH) UV-vis spectroscopic method indicate that a hydroxyl group in position 5' induces the highest antioxidant activity. Consequently, 2,2',5'-trihydroxychalcone was selected for further study in vitro towards ROS scavenging in L-6 myoblasts and THP-1 human monocytes, where it shows an excellent antioxidant activity in a concentration range lower than that reported by most studies of related molecules. In addition, this chalcone shows a very selective activity: it inhibits the proliferation of leukemic cells, but it does not affect the normal L-6 myoblasts and human fibroblasts. In studying 2,2',5'-trihydroxychalcone's effect on weight gain and serum glucose and insulin levels in Zucker fatty (fa(-)/fa(-)) rats we found that supplementing the diet with a 10 mg/kg dose of this chalcone (3 times weekly) blunted the increase in glucose that co-occurs with weight gain over the 6-week treatment period. It is concluded that 2,2',5'-trihydroxychalcone has the potential to serve as a protective agent for some debilitating diseases.
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