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Ngo TC, Dao DQ, Mai TVT, Nguyen TLA, Huynh LK. On The Radical Scavenging and DNA Repairing Activities by Natural Oxygenated Diterpenoids: Theoretical Insights. J Chem Inf Model 2022; 62:2365-2377. [PMID: 35522908 DOI: 10.1021/acs.jcim.1c01428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Diterpenoids are abundant and important compounds in Euphorbia species owing to their structural diversity; therefore, in this study, we investigate the modern-concept antioxidant activities, including free-radical scavenging and oxidative DNA damage repairing, of highly oxygenated diterpenoids originating from the aerial part of Euphorbia helioscopia. Four compounds with structural types of ent-abietane, containing a fused furan ring in their structures, including euphelionolide A (1), euphelionolide D (2), euphelionolide I (3), and euphelionolide L (4) are selected. First, the radical-scavenging activity of these compounds was evaluated with two typical radicals HOO• and HO• in water and pentyl ethanoate (PEA, to mimic lipid environment) via three main mechanisms, namely, hydrogen atom transfer (HAT), radical adduct formation (RAF), and single electron transfer. It is found that the studied compounds are able to scavenge free radicals at multiple reactive sites favorably via HAT and RAF mechanisms, in which the former dominates in the case with HOO• while both mechanisms are competitive in the reaction with HO•. Second, chemical repairing of DNA damage is modeled with the H-atom and single electron being transferred from the studied molecules to damaged 2'-deoxyguanosine (2dG) (i.e., 2dG• radicals and 2dG•+ radical cation). Among the four compounds, euphelionolide A is shown as the most effective radical scavenger and also the highest potential species for chemical repairing of radical-damaged DNA in both water and PEA.
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Affiliation(s)
- Thi Chinh Ngo
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam.,Faculty of Natural Sciences, Duy Tan University, Da Nang 550000, Vietnam
| | - Duy Quang Dao
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam.,Faculty of Natural Sciences, Duy Tan University, Da Nang 550000, Vietnam
| | - Tam V-T Mai
- Molecular Science and Nano-Materials Lab, Institute for Computational Science and Technology, SBI Building, Quang Trung Software City, Tan Chanh Hiep Ward, District 12, Ho Chi Minh City 700000, Vietnam.,University of Science, Vietnam National University─HCMC, 227 Nguyen Van Cu, Ward 4, District 5, Ho Chi Minh City 700000, Vietnam
| | - Thi Le Anh Nguyen
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam.,Faculty of Natural Sciences, Duy Tan University, Da Nang 550000, Vietnam
| | - Lam K Huynh
- International University, Vietnam National University─HCMC, Quarter 6, Linh Trung Ward, Thu Duc District, Ho Chi Minh City 700000, Vietnam
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Reizer E, Fiser B. Potential reaction initiation points of polycyclic aromatic hydrocarbons. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Couttolenc A, Medina ME, Trigos Á, Espinoza C. Antioxidant capacity of fungi associated with corals and sponges of the reef system of Veracruz, Mexico. ELECTRON J BIOTECHN 2022. [DOI: 10.1016/j.ejbt.2021.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Ortiz‐Escarza JM, Medina ME, Trigos A. On the peroxyl radical scavenging ability of β‐sitosterol in lipid media: A theoretical study. J PHYS ORG CHEM 2021. [DOI: 10.1002/poc.4123] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
| | - Manuel E. Medina
- Centro de Investigación en Micología Aplicada Universidad Veracruzana Xalapa Mexico
| | - Angel Trigos
- Centro de Investigación en Micología Aplicada Universidad Veracruzana Xalapa Mexico
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Medina ME, Meza‐Menchaca T, Trigos Á. Insight on the pro‐oxidant capability of amphotericin B in lipid media: A theoretical study. J PHYS ORG CHEM 2020. [DOI: 10.1002/poc.4167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Manuel E. Medina
- Centro de Investigación en Micología Aplicada Universidad Veracruzana Médicos 4, Unidad del Bosque Xalapa Veracruz 91010 México
| | - Thuluz Meza‐Menchaca
- Facultad de Medicina, Laboratorio de Genómica Humana Universidad Veracruzana Médicos y Odontólogos, Unidad del Bosque Xalapa Veracruz 91010 México
| | - Ángel Trigos
- Centro de Investigación en Micología Aplicada Universidad Veracruzana Médicos 4, Unidad del Bosque Xalapa Veracruz 91010 México
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Exploring photosensitization as an efficient antifungal method. Sci Rep 2018; 8:14489. [PMID: 30262914 PMCID: PMC6160477 DOI: 10.1038/s41598-018-32823-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 09/17/2018] [Indexed: 11/17/2022] Open
Abstract
Lipid bilayers containing ergosterol show signs of destruction when they are treated with singlet oxygen, due to the conversion of ergosterol into its peroxy derivative. Applying this previous knowledge, an antifungal method was explored using Candida tropicalis as model, and membrane permeation under photosensitization conditions became evident. These data were complemented through AFM images of artificial lipid bilayers, using cholesterol or ergosterol as structural sterols, showing their corresponding morphologies at the nanoscale. Based on these results, an antifungal method was developed, which shows evidence of the extent of membrane permeation during photosensitization. Such photosensitization offers an effective alternative treatment, especially in membranes with a high ergosterol content, suggesting that this procedure constitutes an easy and efficient antifungal method.
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Barnaba C, Rodríguez-Estrada MT, Lercker G, García HS, Medina-Meza IG. Cholesterol photo-oxidation: A chemical reaction network for kinetic modeling. Steroids 2016; 116:52-59. [PMID: 27756542 DOI: 10.1016/j.steroids.2016.10.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Revised: 09/05/2016] [Accepted: 10/06/2016] [Indexed: 11/20/2022]
Abstract
In this work we studied the effect of polyunsaturated fatty acids (PUFAs) methyl esters on cholesterol photo-induced oxidation. The oxidative routes were modeled with a chemical reaction network (CRN), which represents the first application of CRN to the oxidative degradation of a food-related lipid matrix. Docosahexaenoic acid (DHA, T-I), eicosapentaenoic acid (EPA, T-II) and a mixture of both (T-III) were added to cholesterol using hematoporphyrin as sensitizer, and were exposed to a fluorescent lamp for 48h. High amounts of Type I cholesterol oxidation products (COPs) were recovered (epimers 7α- and 7β-OH, 7-keto and 25-OH), as well as 5β,6β-epoxy. Fitting the experimental data with the CRN allowed characterizing the associated kinetics. DHA and EPA exerted different effects on the oxidative process. DHA showed a protective effect to 7-hydroxy derivatives, whereas EPA enhanced side-chain oxidation and 7β-OH kinetic rates. The mixture of PUFAs increased the kinetic rates several fold, particularly for 25-OH. With respect to the control, the formation of β-epoxy was reduced, suggesting potential inhibition in the presence of PUFAs.
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Affiliation(s)
- Carlo Barnaba
- Department of Chemistry, Washington State University, Pullman, WA 99164-4630, USA
| | - Maria Teresa Rodríguez-Estrada
- Dipartimento di Scienze e Tecnologie Agro-Alimentari, Alma Mater Studiorum-Università di Bologna, Viale G. Fanin 40, 40127 Bologna, Italy
| | - Giovanni Lercker
- Dipartimento di Scienze e Tecnologie Agro-Alimentari, Alma Mater Studiorum-Università di Bologna, Viale G. Fanin 40, 40127 Bologna, Italy
| | - Hugo Sergio García
- UNIDA, Instituto Tecnológico de Veracruz, M.A. de Quevedo 2779, Veracruz, Ver. 91897, Mexico
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Espinoza C, Trigos Á, Medina ME. Theoretical Study on the Photosensitizer Mechanism of Phenalenone in Aqueous and Lipid Media. J Phys Chem A 2016; 120:6103-10. [DOI: 10.1021/acs.jpca.6b03615] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- César Espinoza
- Laboratorio
de Alta Tecnología de Xalapa, Universidad Veracruzana, Calle Medicos 5, Col. Unidad
del Bosque, 91010 Xalapa, Veracruz, México
| | - Ángel Trigos
- Laboratorio
de Alta Tecnología de Xalapa, Universidad Veracruzana, Calle Medicos 5, Col. Unidad
del Bosque, 91010 Xalapa, Veracruz, México
| | - Manuel E. Medina
- Centro
de Investigaciones Biomédicas, Universidad Veracruzana, Dr. Luis Castelazo Ayala
s/n, Col. Industrial las Animas, 91190 Xalapa, Veracruz, México
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Medina ME, Iuga C, Trigos Á. Mechanism and kinetics of the oxidative damage to ergosterol induced by peroxyl radicals in lipid media: a theoretical quantum chemistry study. J PHYS ORG CHEM 2015. [DOI: 10.1002/poc.3520] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Manuel E. Medina
- Centro de Investigaciones Biomédicas; Universidad Veracruzana; Av. Luis Castelazo s/n, Col. Industrial Animas Xalapa Veracruz 91190 Mexico
| | - Cristina Iuga
- Departamento de Sistemas Biológicos; Universidad Autónoma Metropolitana-Xochimilco; Calzada del Hueso 1100 México D.F. 04960 Mexico
| | - Ángel Trigos
- Laboratorio de Alta Tecnología de Xalapa; Universidad Veracruzana; Calle Médicos No. 5, Col. Unidad del Bosque Xalapa Veracruz 91010 Mexico
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