Radical Scavenging Activity of Natural Anthraquinones: a Theoretical Insight

[Image: see text] Anthraquinones (ANQs) isolated from Paederia plants are known to have antidiarrheal, antitussive, anthelmintic, analgesic, anti-inflammatory, antihyperlipidemic, antihyperglycaemic, and antimicrobial activities. The antioxidant properties were also noted but not confirmed thus far....

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Autores principales: Trung, Nguyen Quang, Thong, Nguyen Minh, Cuong, Dao Hung, Manh, Tran Duc, Hoang, Loc Phuoc, Hien, Nguyen Khoa, Nam, Pham Cam, Quang, Duong Tuan, Mechler, Adam, Vo, Quan V.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2021
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8158809/
https://www.ncbi.nlm.nih.gov/pubmed/34056486
http://dx.doi.org/10.1021/acsomega.1c01448
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author Trung, Nguyen Quang
Thong, Nguyen Minh
Cuong, Dao Hung
Manh, Tran Duc
Hoang, Loc Phuoc
Hien, Nguyen Khoa
Nam, Pham Cam
Quang, Duong Tuan
Mechler, Adam
Vo, Quan V.
author_facet Trung, Nguyen Quang
Thong, Nguyen Minh
Cuong, Dao Hung
Manh, Tran Duc
Hoang, Loc Phuoc
Hien, Nguyen Khoa
Nam, Pham Cam
Quang, Duong Tuan
Mechler, Adam
Vo, Quan V.
author_sort Trung, Nguyen Quang
collection PubMed
description [Image: see text] Anthraquinones (ANQs) isolated from Paederia plants are known to have antidiarrheal, antitussive, anthelmintic, analgesic, anti-inflammatory, antihyperlipidemic, antihyperglycaemic, and antimicrobial activities. The antioxidant properties were also noted but not confirmed thus far. In this study, the superoxide and hydroperoxide radical scavenging activities of six ANQs were evaluated using a computational approach. The results suggest that the ANQs exhibit low HOO(•) antiradical activity in all environments, including the gas phase (k < 10(2) M(–1) s(–1)). In contrast, the ANQs might exert excellent O(2)(•–) radical scavenging activity, particularly in aqueous solution. The rate constants of the superoxide anion scavenging in water (at pH = 7.4) range from 3.42 × 10(6) to 3.70 × 10(8) M(–1) s(–1). Compared with typical antioxidants such as ascorbic acid and quercetin, the superoxide anion scavenging activity of ANQs is significantly higher. Thus, the ANQs are promising O(2)(•–) radical scavengers in polar media.
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spelling pubmed-81588092021-05-28 Radical Scavenging Activity of Natural Anthraquinones: a Theoretical Insight Trung, Nguyen Quang Thong, Nguyen Minh Cuong, Dao Hung Manh, Tran Duc Hoang, Loc Phuoc Hien, Nguyen Khoa Nam, Pham Cam Quang, Duong Tuan Mechler, Adam Vo, Quan V. ACS Omega [Image: see text] Anthraquinones (ANQs) isolated from Paederia plants are known to have antidiarrheal, antitussive, anthelmintic, analgesic, anti-inflammatory, antihyperlipidemic, antihyperglycaemic, and antimicrobial activities. The antioxidant properties were also noted but not confirmed thus far. In this study, the superoxide and hydroperoxide radical scavenging activities of six ANQs were evaluated using a computational approach. The results suggest that the ANQs exhibit low HOO(•) antiradical activity in all environments, including the gas phase (k < 10(2) M(–1) s(–1)). In contrast, the ANQs might exert excellent O(2)(•–) radical scavenging activity, particularly in aqueous solution. The rate constants of the superoxide anion scavenging in water (at pH = 7.4) range from 3.42 × 10(6) to 3.70 × 10(8) M(–1) s(–1). Compared with typical antioxidants such as ascorbic acid and quercetin, the superoxide anion scavenging activity of ANQs is significantly higher. Thus, the ANQs are promising O(2)(•–) radical scavengers in polar media. American Chemical Society 2021-05-13 /pmc/articles/PMC8158809/ /pubmed/34056486 http://dx.doi.org/10.1021/acsomega.1c01448 Text en © 2021 The Authors. Published by American Chemical Society Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Trung, Nguyen Quang
Thong, Nguyen Minh
Cuong, Dao Hung
Manh, Tran Duc
Hoang, Loc Phuoc
Hien, Nguyen Khoa
Nam, Pham Cam
Quang, Duong Tuan
Mechler, Adam
Vo, Quan V.
Radical Scavenging Activity of Natural Anthraquinones: a Theoretical Insight
title Radical Scavenging Activity of Natural Anthraquinones: a Theoretical Insight
title_full Radical Scavenging Activity of Natural Anthraquinones: a Theoretical Insight
title_fullStr Radical Scavenging Activity of Natural Anthraquinones: a Theoretical Insight
title_full_unstemmed Radical Scavenging Activity of Natural Anthraquinones: a Theoretical Insight
title_short Radical Scavenging Activity of Natural Anthraquinones: a Theoretical Insight
title_sort radical scavenging activity of natural anthraquinones: a theoretical insight
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8158809/
https://www.ncbi.nlm.nih.gov/pubmed/34056486
http://dx.doi.org/10.1021/acsomega.1c01448
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