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Wang Y, Li C, Li Z, Moalin M, den Hartog GJM, Zhang M. Computational Chemistry Strategies to Investigate the Antioxidant Activity of Flavonoids-An Overview. Molecules 2024; 29:2627. [PMID: 38893503 PMCID: PMC11173571 DOI: 10.3390/molecules29112627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 05/27/2024] [Accepted: 05/29/2024] [Indexed: 06/21/2024] Open
Abstract
Despite several decades of research, the beneficial effect of flavonoids on health is still enigmatic. Here, we focus on the antioxidant effect of flavonoids, which is elementary to their biological activity. A relatively new strategy for obtaining a more accurate understanding of this effect is to leverage computational chemistry. This review systematically presents various computational chemistry indicators employed over the past five years to investigate the antioxidant activity of flavonoids. We categorize these strategies into five aspects: electronic structure analysis, thermodynamic analysis, kinetic analysis, interaction analysis, and bioavailability analysis. The principles, characteristics, and limitations of these methods are discussed, along with current trends.
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Affiliation(s)
- Yue Wang
- Department of Pharmacology and Personalized Medicine, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, 6200 MD Maastricht, The Netherlands; (Y.W.); (C.L.); (G.J.M.d.H.)
| | - Chujie Li
- Department of Pharmacology and Personalized Medicine, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, 6200 MD Maastricht, The Netherlands; (Y.W.); (C.L.); (G.J.M.d.H.)
| | - Zhengwen Li
- School of Pharmacy, Chengdu University, 2025 Chengluo Avenue, Chengdu 610106, China;
| | - Mohamed Moalin
- Research Centre Material Sciences, Zuyd University of Applied Science, 6400 AN Heerlen, The Netherlands;
| | - Gertjan J. M. den Hartog
- Department of Pharmacology and Personalized Medicine, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, 6200 MD Maastricht, The Netherlands; (Y.W.); (C.L.); (G.J.M.d.H.)
| | - Ming Zhang
- Hainan University-HSF/LWL Collaborative Innovation Laboratory, College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou 570228, China
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Ushasree MV, Jia Q, Do SG, Lee EY. New opportunities and perspectives on biosynthesis and bioactivities of secondary metabolites from Aloe vera. Biotechnol Adv 2024; 72:108325. [PMID: 38395206 DOI: 10.1016/j.biotechadv.2024.108325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 01/10/2024] [Accepted: 02/15/2024] [Indexed: 02/25/2024]
Abstract
Historically, the genus Aloe has been an indispensable part of both traditional and modern medicine. Decades of intensive research have unveiled the major bioactive secondary metabolites of this plant. Recent pandemic outbreaks have revitalized curiosity in aloe metabolites, as they have proven pharmacokinetic profiles and repurposable chemical space. However, the structural complexity of these metabolites has hindered scientific advances in the chemical synthesis of these compounds. Multi-omics research interventions have transformed aloe research by providing insights into the biosynthesis of many of these compounds, for example, aloesone, aloenin, noreugenin, aloin, saponins, and carotenoids. Here, we summarize the biological activities of major aloe secondary metabolites with a focus on their mechanism of action. We also highlight the recent advances in decoding the aloe metabolite biosynthetic pathways and enzymatic machinery linked with these pathways. Proof-of-concept studies on in vitro, whole-cell, and microbial synthesis of aloe compounds have also been briefed. Research initiatives on the structural modification of various aloe metabolites to expand their chemical space and activity are detailed. Further, the technological limitations, patent status, and prospects of aloe secondary metabolites in biomedicine have been discussed.
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Affiliation(s)
- Mrudulakumari Vasudevan Ushasree
- Department of Chemical Engineering (BK21 FOUR Integrated Engineering Program), Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Qi Jia
- Unigen, Inc., 2121 South street suite 400 Tacoma, Washington 98405, USA
| | - Seon Gil Do
- Naturetech, Inc., 29-8, Yongjeong-gil, Chopyeong-myeon, Jincheon-gun, Chungcheongbuk-do 27858, Republic of Korea
| | - Eun Yeol Lee
- Department of Chemical Engineering (BK21 FOUR Integrated Engineering Program), Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Republic of Korea.
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Ren X, Wang Z, Wang X, Li Y, Tan Y. Determination of aloesone in rat plasma by LC-MS/MS spectrometry and its application in a pharmacokinetic study. Bioanalysis 2024; 16:453-460. [PMID: 38497753 DOI: 10.4155/bio-2023-0231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 02/23/2024] [Indexed: 03/19/2024] Open
Abstract
Aim: We aimed to develop a rapid and accurate LC-MS/MS method for determining the concentration of aloesone in rat plasma, and to investigate its pharmacokinetics. Methods: The rat plasma samples were extracted using acetonitrile. Chromatographic separation was achieved using a Kinetex XB-C18 column, with a mobile phase of methanol and water (containing 0.1‰ formic acid) in a gradient elution. An ESI source, operating in positive ion mode with multiple reaction monitoring, was utilized. Results & conclusion: The developed method meets all the requirements for methodological validation, and it was successfully applied in the pharmacokinetic study. It was observed that oral administration of aloesone in rats resulted in rapid absorption (time to reach Cmax: 0.083 h) but low bioavailability (12.59%).
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Affiliation(s)
- Xikang Ren
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Medical University, Haikou, 571159, China
- Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou, 571159, China
- Haikou Key Laboratory of Li Nationality Medicine, Haikou, 571159, China
| | - Zheng Wang
- Biotechnology and Biochemistry Laboratory, Hainan Medical University, Haikou, Hainan, 571159, China
| | - Xuesong Wang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Medical University, Haikou, 571159, China
- Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou, 571159, China
- Haikou Key Laboratory of Li Nationality Medicine, Haikou, 571159, China
| | - Youbin Li
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Medical University, Haikou, 571159, China
- Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou, 571159, China
- Haikou Key Laboratory of Li Nationality Medicine, Haikou, 571159, China
| | - Yinfeng Tan
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Medical University, Haikou, 571159, China
- Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou, 571159, China
- Haikou Key Laboratory of Li Nationality Medicine, Haikou, 571159, China
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Zhao L, Zheng L. A Review on Bioactive Anthraquinone and Derivatives as the Regulators for ROS. Molecules 2023; 28:8139. [PMID: 38138627 PMCID: PMC10745977 DOI: 10.3390/molecules28248139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 12/09/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023] Open
Abstract
Anthraquinones are bioactive natural products, which are often found in medicinal herbs. These compounds exert antioxidant-related pharmacological actions including neuroprotective effects, anti-inflammation, anticancer, hepatoprotective effects and anti-aging, etc. Considering the benefits from their pharmacological use, recently, there was an upsurge in the development and utilization of anthraquinones as reactive oxygen species (ROS) regulators. In this review, a deep discussion was carried out on their antioxidant activities and the structure-activity relationships. The antioxidant mechanisms and the chemistry behind the antioxidant activities of both natural and synthesized compounds were furtherly explored and demonstrated. Due to the specific chemical activity of ROS, antioxidants are essential for human health. Therefore, the development of reagents that regulate the imbalance between ROS formation and elimination should be more extensive and rational, and the exploration of antioxidant mechanisms of anthraquinones may provide new therapeutic tools and ideas for various diseases mediated by ROS.
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Affiliation(s)
- Lihua Zhao
- Tianjin Renai College, Tianjin 301636, China;
| | - Lin Zheng
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
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Rohman R, Nath R, Kar R. Revisiting the Hydrogen Atom Transfer Reactions through a Simple and Accurate Theoretical Model: Role of Hydrogen Bond Energy in Polyphenolic Antioxidants. COMPUT THEOR CHEM 2023. [DOI: 10.1016/j.comptc.2023.114097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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Mitra SS, Ghorai M, Nandy S, Mukherjee N, Kumar M, Radha, Ghosh A, Jha NK, Proćków J, Dey A. Barbaloin: an amazing chemical from the 'wonder plant' with multidimensional pharmacological attributes. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2022; 395:1525-1536. [PMID: 36173445 PMCID: PMC9520999 DOI: 10.1007/s00210-022-02294-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 09/09/2022] [Indexed: 11/26/2022]
Abstract
Aloe vera (L.) Burm.f. is nicknamed the 'Miracle plant' or sometimes as the 'Wonder plant'. It is a plant that has been used since ancient times for the innumerable health benefits associated with it. It is one of the important plants that has its use in conventional medicinal treatments. It is a perennial succulent, drought-tolerant member of the family Asphodelaceae. There are scores of properties associated with the plant that help in curing various forms of human ailments. Extracts and gels obtained from plants have been shown to be wonderful healers of different conditions, mainly various skin problems. Also, this plant is popular in the cosmetics industry. The underlying properties of the plant are now mainly associated with the natural phytochemicals present in the plant. Diverse groups of phytoingredients are found in the plant, including various phenolics, amino acids, sugars, vitamins, and different other organic compounds, too. One of the primary ingredients found in the plant is the aloin molecule. It is an anthraquinone derivative and exists as an isomer of Aloin A and Aloin B. Barbaloin belonging to the first group is a glucoside of the aloe-emodin anthrone molecule. Various types of pharmacological properties exhibited by the plant can be attributed to this chemical. Few significant ones are antioxidant, anti-inflammatory, anti-diabetic, anti-cancer, anti-microbial, and anti-viral, along with their different immunity-boosting actions. Recently, molecular coupling studies have also found the role of these molecules as a potential cure against the ongoing COVID-19 disease. This study comprehensively focuses on the numerous pharmacological actions of the primary compound barbaloin obtained from the Aloe vera plant along with the mechanism of action and the potent application of these natural molecules under various conditions.
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Affiliation(s)
- Shreya Sikdar Mitra
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata, 700073, West Bengal, India
| | - Mimosa Ghorai
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata, 700073, West Bengal, India
| | - Samapika Nandy
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata, 700073, West Bengal, India
| | - Nobendu Mukherjee
- Department of Health Sciences, Novel Global Community Educational Foundation, Hebersham, Australia
| | - Manoj Kumar
- Chemical and Biochemical Processing Division, ICAR-Central Institute for Research On Cotton Technology, Mumbai, 400019, Maharashtra, India
| | - Radha
- School of Biological and Environmental Sciences, Shoolini University of Biotechnology and Management Sciences, Solan, 173229, Himachal Pradesh, India
| | - Arabinda Ghosh
- Department of Botany, Gauhati University, 781014, Guwahati, Assam, India
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering & Technology, Sharda University, Greater Noida, Uttar Pradesh, 201310, India
- Department of Biotechnology Engineering and Food Technology, Chandigarh University, Mohali, 140413, Punjab, India
- Department of Biotechnology, School of Applied & Life Sciences, Uttaranchal University, Dehradun, 248007, Uttarakhand, India
| | - Jarosław Proćków
- Department of Plant Biology, Institute of Environmental Biology, Wrocław University of Environmental and Life Sciences, Kożuchowska 5b, 51-631, Wrocław, Poland.
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata, 700073, West Bengal, India.
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Sebastian J, Mary Samuel J. Anticancer potential of poly(2-aminobenzoic acid)-blend-Aloe vera against the human breast cancer cell line MDA-MB-231. J BIOACT COMPAT POL 2022. [DOI: 10.1177/08839115221138772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Breast cancer in women is amongst the most significant concerns from time immemorial in the field of oncology. This study proposes an anticancerous polymeric material based on an electroactive substituted polyaniline blend, poly(2-aminobenzoic acid)-blend-Aloe vera (PABA/AV) synthesized by the emulsion polymerization method. The structural, thermal, and morphological characteristics determined using FT-IR and UV-Visible Spectroscopy, XRD, TGA, DTA, and SEM-EDX validated the thermally stable, semi-crystalline, emeraldine salt structure. The material is semi-conducting, and the electrical conductivity measured is 1.86 × 10−3 S/cm. It shows bactericidal efficacy against Enterococcus faecalis at a minimum inhibitory and minimum bactericidal concentration of 50 μg/mL. The radical cations in the emeraldine polymer chain reduce the 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical and exhibit a significant % of DPPH scavenging (89.85%) at 20 μL. The polymer blend is active against the human breast cancer cell line MDA-MB-231 and causes 78.65% cytotoxicity at a concentration of 125 μg/mL. The synergistic effect of the ancient healing Aloe vera plant and the electroactive biocompatible poly(2-aminobenzoic acid) certainly opens up new developments in the field of cancer therapy.
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Affiliation(s)
- Julia Sebastian
- PG & Research Department of Chemistry, Department of Chemistry, Auxilium College, Vellore, Tamil Nadu, India
| | - Jhancy Mary Samuel
- PG & Research Department of Chemistry, Department of Chemistry, Auxilium College, Affiliated to Thiruvalluvar University, Vellore, Tamil Nadu, India
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Wang Y, Li C, Xiong Z, Chen N, Wang X, Xu J, Wang Y, Liu L, Wu H, Huang C, Huang A, Tan J, Li Y, Li Q. Up-and-coming anti-epileptic effect of aloesone in Aloe vera: Evidenced by integrating network pharmacological analysis, in vitro, and in vivo models. Front Pharmacol 2022; 13:962223. [PMID: 36034878 PMCID: PMC9411719 DOI: 10.3389/fphar.2022.962223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 07/11/2022] [Indexed: 11/13/2022] Open
Abstract
Background:Aloe vera is a medically valuable plant with anti-epileptic activity; however, its mechanism of action remains unknown. In this study, network pharmacological, in vitro, and in vivo experiments were carried out to explore the potential anti-epileptic components and targets of Aloe vera.Methods: The main active components of Aloe vera were identified by searching the Traditional Chinese Medicine System Pharmacology database. Targets of Aloe vera were predicted using SwissTargetPrediction, whereas information about the epilepsy disease targets was obtained from Gene Cards. The protein–protein interaction network and core targets were screened according to the topological structure and CytoNCA plugin. The glutamate-induced HT22 cell line and pentylenetetrazol-induced seizure rats were used to confirm the effect of aloesone by detecting reactive oxygen species (ROS) and apoptosis, and predicting the targets.Results: A total of 14 core active components were selected based on the screening criteria of oral bioavailability ≥30% and drug-likeness ≥ 0.10. Four compounds, namely linoleic acid, aloesone, isoeleutherol glucosiden qt, and anthranol, demonstrated the potential ability of crossing the blood-brain barrier. A total of 153 targets associated with epilepsy were predicted for the four compounds. Moreover, after network analysis with CytoNCA, 10 targets, namely, MAPK1, SRC, MARK3, EGFR, ESR1, PTGS2, PTPN11, JAK2, PPKCA, and FYN, were selected as the core genes, and SRC, which has been predicted to be the target of aloesone and anthranol, exhibited the highest subgraph centrality value. In vitro experiments confirmed that aloesone treatment significantly inhibited the glutamate-induced neuronal injury by reducing the intracellular ROS content and the early phase of apoptosis. Additionally, treatment with 50 mg/kg aloesone resulted in anti-seizure effects by reducing the seizure score and prolonging the latent period in acute and chronic rats. Furthermore, aloesone treatment increased the phosphorylation of c-SRC at Y418 and reduced the phosphorylation at Y529, simultaneously activating c-SRC.Conclusion: Integrating network pharmacology with in vitro and in vivo experiments demonstrated that aloesone, which inhibited seizure by activating c-SRC, is a potential anti-seizure compound present in Aloe vera.
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Affiliation(s)
- Yan Wang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, Department of Neurology, School of Pharmacy, The First Affiliated Hospital, Hainan Medical University, Haikou, China
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou, China
| | - Chang Li
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, Department of Neurology, School of Pharmacy, The First Affiliated Hospital, Hainan Medical University, Haikou, China
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou, China
| | - Zhongyv Xiong
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, Department of Neurology, School of Pharmacy, The First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Niangen Chen
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, Department of Neurology, School of Pharmacy, The First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Xuesong Wang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, Department of Neurology, School of Pharmacy, The First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Junyv Xu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, Department of Neurology, School of Pharmacy, The First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Yuemei Wang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, Department of Neurology, School of Pharmacy, The First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Longfeng Liu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, Department of Neurology, School of Pharmacy, The First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Hang Wu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, Department of Neurology, School of Pharmacy, The First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Caihui Huang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, Department of Neurology, School of Pharmacy, The First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Aiqin Huang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, Department of Neurology, School of Pharmacy, The First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Jiajia Tan
- College of Veterinary Medicine, Southwestern University, Chongqing, China
| | - Youbin Li
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, Department of Neurology, School of Pharmacy, The First Affiliated Hospital, Hainan Medical University, Haikou, China
- *Correspondence: Youbin Li, ; Qifu Li,
| | - Qifu Li
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, Department of Neurology, School of Pharmacy, The First Affiliated Hospital, Hainan Medical University, Haikou, China
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou, China
- *Correspondence: Youbin Li, ; Qifu Li,
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Thuy PT, Son NT. Thermodynamic and kinetic studies on antioxidant capacity of amentoflavone: a DFT (density functional theory) computational approach. Free Radic Res 2022; 56:526-535. [PMID: 36370431 DOI: 10.1080/10715762.2022.2146584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Density functional theory (DFT) at the theoretical M06-2X/6-311G(d,p) level was used to assess thermodynamics and kinetics in the antioxidative action of amentoflavone (AF). The antioxidative HAT pathway (H-atom transfer) is assigned to this compound in gas, but the SPL-ET (sequential proton loss-electron transfer) is the main route in polar solvents methanol and water. In all four mediums gas, benzene, methanol, and water, 4‴-OH is the most active site in free radical quenching with the lowest BDE (bond dissociation enthalpy) values of 81.8-84.8 kcal/mol, as well as it exerted the PA (proton affinity) values of 29.8-33.0 kcal/mol in methanol and water. Regarding kinetics, when interacted with •OOH and •NO2 in gas and methanol, 4‴-OH group is also responsible for the lowest ΔG# values (Gibbs free energy of activation), and the highest rate constant K values. Acidic assessment also indicated that 4‴-OH is associated with the strongest acidity (the lowest pKa). Two favorable oriented 4‴-OH and 7-OH groups further exhibited antioxidative activity since they prevented metal ions Zn2+ and Fe2+ from participating in free radical producing processes, in which the most stable complex [FeAF(H2O)4] generated the lowest IE value of -206.2 kcal/mol, and Egap value of 3.491 kcal/mol, but the highest MIA values of 184.6 kcal/mol in methanol.
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Affiliation(s)
- Phan Thi Thuy
- Department of Chemistry, College of Education, Vinh University, Vinh, Vietnam
| | - Ninh The Son
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Caugiay, Vietnam
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Spiegel M. Current Trends in Computational Quantum Chemistry Studies on Antioxidant Radical Scavenging Activity. J Chem Inf Model 2022; 62:2639-2658. [PMID: 35436117 PMCID: PMC9198981 DOI: 10.1021/acs.jcim.2c00104] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
![]()
The antioxidative
nature of chemicals is now routinely studied
using computational quantum chemistry. Scientists are constantly proposing
new approaches to investigate those methods, and the subject is evolving
at a rapid pace. The goal of this review is to collect, consolidate,
and present current trends in a clear, methodical, and reference-rich
manner. This paper is divided into several sections, each of which
corresponds to a different stage of elaborations: preliminary concerns,
electronic structure analysis, and general reactivity (thermochemistry
and kinetics). The sections are further subdivided based on methodologies
used. Concluding remarks and future perspectives are presented based
on the remaining elements.
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Affiliation(s)
- Maciej Spiegel
- Department of Pharmacognosy and Herbal Medicines, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland
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Structure–antioxidant activity relationships of dendrocandin analogues determined using density functional theory. Struct Chem 2022; 33:795-805. [PMID: 35194353 PMCID: PMC8855351 DOI: 10.1007/s11224-022-01895-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/09/2022] [Indexed: 12/22/2022]
Abstract
Quantum-chemical calculations based on the density functional theory (DFT) at the B3LYP/6–311 + + G(2d,2p)//B3LYP/6–31G(d,p) level were employed to study the relationship between the antioxidant properties and chemical structures of six dendrocandin (DDCD) analogues in the gas phase and two solvents (methanol and water). The hydrogen atom transfer (HAT), electron-transfer-proton-transfer (ET-PT), and sequential proton-loss-electron-transfer (SPLET) mechanisms are explored. The highest occupied molecular orbital (HOMO), lowest unoccupied molecular orbital (LUMO), reactivity indices (η, μ, ω, ω+, and ω–), and molecular electrostatic potentials (MEPs) were also evaluated. The results suggest that the D ring plays an important role in mediating the antioxidant activity of DDCDs. For all the studied compounds, indicating that HAT was identified as the most favorable mechanism, whereas the SPLET mechanism was the most thermodynamically favorable pathway in polar solvents. The results of our study should aid in the development of new or modified antioxidant compounds.
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Dehkordi MM, Asgarshamsi MH, Fassihi A, Zborowski KK. A Comparative DFT Study on the Antioxidant Activity of some Novel 3-hydroxypyridine-4-one Derivatives. Chem Biodivers 2022; 19:e202100703. [PMID: 34997823 DOI: 10.1002/cbdv.202100703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 01/07/2022] [Indexed: 11/06/2022]
Abstract
The current study on the antioxidant activity of Kojic acid and 3-hydroxypyridine-4-one derivatives was performed by implementation of density functional theory calculations with the B3LYP hybrid functional and the 6-311++ G** basis set in Polarizable Continuum Model. Compounds under evaluation were previously synthesized by our research group. The DPPH scavenging effect and IC 50 values of them in mM concentrations were evaluated. Subsequently, various electronic and energetic descriptors such as HOMO and LUMO energy gaps, bonding dissociation enthalpy of OH bond, ionization potential, electron affinity, hardness, and softness, NBOs and spin density of radical and neutral species were used to study antioxidant properties of investigated compounds. The computations detected two compounds, HP3 and HP4 , with significant antioxidant activity. Energetic descriptors indicated that SPLET mechanism is preferred over than other antioxidant mechanism and computational results were in accordance with the experimental results.
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Affiliation(s)
- Mehrdad M Dehkordi
- Isfahan University of Medical Sciences, School of Pharmacy, Hezar Jerib street, 81746-73461, Isfahan, IRAN (ISLAMIC REPUBLIC OF)
| | - Mohammad H Asgarshamsi
- Isfahan University of Medical Sciences, School of Pharmacy, Hezar Jerib street, 81746-73461, Isfahan, IRAN (ISLAMIC REPUBLIC OF)
| | - Afshin Fassihi
- Isfahan University of Medical Sciences, School of Pharmacy, Hezar Jerib street, 81746-73461, Isfahan, IRAN (ISLAMIC REPUBLIC OF)
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Theoretical investigations on the antioxidant potential of 2,4,5-trihydroxybutyrophenone in different solvents: A DFT approach. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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14
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Ku TC, Wang PH, Huang JL, Chen HY, Fang JT, Hsieh HL, Chen JL. The survival outcome of nasopharyngeal cancer patients with traditional Chinese medicine external use: A hospital-based study. JOURNAL OF ETHNOPHARMACOLOGY 2021; 279:114380. [PMID: 34197958 DOI: 10.1016/j.jep.2021.114380] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 06/13/2021] [Accepted: 06/26/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE External-use traditional Chinese medicine (TCM) agents are widely used to relieve the adverse effects of radiation therapy in nasopharyngeal cancer patients. AIM OF THE STUDY Our study aimed to evaluate the influence of external-use TCM agents to relieve radiotherapy-related adverse effects on the efficacy of radiation therapy and the prognosis of nasopharyngeal cancer patients. MATERIALS AND METHODS By using the Chang Gung Research Database (CGRD), we analyzed 1823 newly diagnosed nasopharyngeal cancer patients with radiotherapy-related adverse effects between 2001/01 and 2015/12. We used Kaplan-Meier analysis and a Cox regression model to estimate the differences in effects on survival outcomes between two groups, TCM external users and non-TCM external users. RESULTS We found that TCM external users had significantly better 3-year and 5-year overall survival rates (log-rank test, p = 0.0377 and p = 0.034, respectively) than non-TCM external users. The 3-year and 5-year disease-free survival rates were not statistically significantly different between the groups. We also found a trend of improved 3-year and 5-year overall survival rates in TCM external users with advanced-stage disease, without statistical significance (log-rank test, p = 0.10 and p = 0.089, respectively). The subgroup analysis revealed lower risks of mortality in TCM external users among the nonhypertension, nonhyperlipidemia, nonischemic heart disease, noncirrhosis, and nonchronic kidney disease groups. CONCLUSIONS Our study showed that TCM agents external use could significantly improve 3-year and 5-year overall survival rates in nasopharyngeal cancer patients with radiotherapy-related adverse effects.
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Affiliation(s)
- Te-Chien Ku
- Division of Chinese Internal Medicine, Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
| | - Pin-Han Wang
- Division of Chinese Internal Medicine, Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
| | - Jhen-Ling Huang
- Center for Big Data Analytics and Statistics, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
| | - Hsing-Yu Chen
- Division of Chinese Internal Medicine, Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
| | - Ji-Tseng Fang
- Kidney Research Center, Department of Nephrology, Chang Gung Memorial Hospital, Taoyuan, Taiwan; School of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
| | - Hsi-Lung Hsieh
- Department of Nursing, Division of Basic Medical Sciences, Research Center for Chinese Herbal Medicine, And Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, Taoyuan, Taiwan; Department of Neurology, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
| | - Jiun-Liang Chen
- Division of Chinese Internal Medicine, Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan; School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
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15
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Alidoust S, Zamani M, Jabbari M. Adsorption of free radical TEMPO onto Al 2O 3 nanoparticles and evaluation of radical scavenging activity. Free Radic Res 2021; 55:937-949. [PMID: 34525892 DOI: 10.1080/10715762.2021.1981543] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
This study describes the adsorption of free radical TEMPO onto Al2O3 nanoparticles in the solvents with different polarities including DMF, methanol, acetone, THF, petroleum ether and n-hexane at ambient temperature to evaluate the radical scavenging activity. The adsorption percentage of radical is calculated by measuring the maximum adsorption intensity of the ultraviolet (UV) absorption spectrum of TEMPO in the presence and the absence of Al2O3 nanoparticles. The morphology of Al2O3 nanoparticles before and after adsorption of TEMPO is studied using transmission electron microscopy (TEM), X-ray diffraction (XRD) and Fourier-transform infrared (FT-IR) spectroscopy. The adsorption energy and other thermochemical data for the adsorption of TEMPO over different active sites of Al2O3 are estimated via dispersion corrected density functional theory (DFT + Disp). The donor-acceptor interactions between Al2O3 and TEMPO are calculated using natural bond orbital (NBO) theory. It is found that Al2O3 nanoparticles have efficient radical scavenging activity (RSA) in the range of 50-72%. Approximately, a linear relationship between dielectric constant of solvent and the absorption percentage of TEMPO over Al2O3 nanoparticles is achieved. So that with decreasing the polarity of solvent, the adsorption of TEMPO onto Al2O3 nanoparticles is increased. The adsorption of TEMPO over Lewis acidic sites of Al2O3 is more favored than Brønsted acidic and basic sites. The comparison between experimental and calculated IR spectra of TEMPO/Al2O3 complexes provides the good evidence for adsorption of TEMPO onto the surface of Al2O3 nanoparticles.
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Affiliation(s)
- Soheyl Alidoust
- School of Chemistry, Damghan University, Damghan 36716-41167, Iran
| | - Mehdi Zamani
- School of Chemistry, Damghan University, Damghan 36716-41167, Iran
| | - Morteza Jabbari
- School of Chemistry, Damghan University, Damghan 36716-41167, Iran
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16
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Density functional theory studies of the antioxidants-a review. J Mol Model 2021; 27:271. [PMID: 34463834 DOI: 10.1007/s00894-021-04891-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 08/23/2021] [Indexed: 10/20/2022]
Abstract
The following review article attempts to compare the antioxidant activity of the compounds. For this purpose, density functional theory/Becke three-parameter Lee-Yang-Parr (DFT/B3LYP) methodology was carried out instead of using pharmacological methodologies because of economic benefits and high accuracy. This methodology filtrates the compounds with the lowest antioxidant activity. At first, the Koopmans' theorem was carried out to calculate some descriptors to compare antioxidants. The energy of the highest occupied molecular orbitals (HOMO) was accepted as the best indicator, and then some studies confirmed that the highest occupied molecular orbital/lowest unoccupied molecular orbital (HOMO-LUMO) energy gap is the more precise descriptor. Although it would be better to compare spin density distribution (SDD) on the oxygen of the corresponding radical in the polarizable continuum model (PCM) to evaluate their capability to chain reaction inhibition. Next, it was mentioned that in the multi-target directed ligands (MTDLs), the antioxidant is connected to other moieties in para positions to create better antioxidants or novel hybrid compounds. Indeed, SDD was introduced as a descriptor for MTDL antioxidant effectiveness. Then, the relation between antioxidants and aromaticity was investigated. The more the aromaticity of an antioxidant, the more stable the corresponding radical is. Subsequently, in preferred antioxidant activity, it was defined that the hydrogen atom transfer (HAT) mechanism is more favored in metabolism phase I. It has been seen that the solvent model can change the antioxidant mechanism. Therefore, the solvent model is more important than the chemical structure of antioxidants, and an ideal antioxidant should be evaluated in PCM for pharmacological evaluations.
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17
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Theoretical investigations on the antioxidant potential of a non-phenolic compound thymoquinone: a DFT approach. J Mol Model 2021; 27:173. [PMID: 34014420 DOI: 10.1007/s00894-021-04795-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 05/11/2021] [Indexed: 02/07/2023]
Abstract
Thymoquinone (TQ) is a natural compound present in black cumin which possesses potent antioxidant activity without having any phenolic hydroxyl group which is responsible for antioxidant activity. In the present study, computational calculation based on density functional theory (DFT) was executed to assess systematically the antioxidant behavior of this compound by considering geometrical characteristics, highest occupied molecular orbital - lowest unoccupied molecular orbital (HOMO-LUMO), and molecular electrostatic potential (MEP) surface. Thermochemical parameters correlated to the leading antioxidant mechanisms such as hydrogen atom transfer (HAT), single electron transfer-proton transfer (SETPT), and sequential proton loss electron transfer (SPLET) were studied in gas and water media. In addition, the changes of thermochemical parameters such as free energy change (∆G) and enthalpy change (∆H) were computed for hydrogen abstraction (HA) from TQ to hydroxyl radical in gas and water phases to investigate its free radical scavenging potency. The low and comparable values of bond dissociation enthalpy (BDE), proton dissociation enthalpy (PDE), ionization potential (IP), proton affinity (PA), and electron transfer enthalpy (ETE) revealed the antioxidant activity. The ∆G and ∆H also indicated apposite thermodynamic evidence in favor of antiradical capability of TQ. The attack of the free radical occurred preferentially at 3CH position of the molecule.
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18
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Asgarshamsi MH, Fassihi A, Hassanzadeh F, Saghaei L, Attar AM, Mohammad-Beigi H. Synthesis, antioxidant activity, and density functional theory study of some novel 4-[(benzo[ d]thiazol-2-ylimino)methyl]phenol derivatives: a comparative approach for the explanation of their radical scavenging activities. Res Pharm Sci 2021; 16:35-47. [PMID: 33953773 PMCID: PMC8074808 DOI: 10.4103/1735-5362.305187] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/11/2020] [Accepted: 11/30/2020] [Indexed: 11/25/2022] Open
Abstract
Background and purpose: Radicals produced by Fenton and Haber-Weiss reactions play detrimental roles in our body. Some oxidized proteins as toxic configurations are identified in amyloid-β deposits. These deposits mostly occur in conditions, such as Alzheimer’s disease. Here, we report the synthesis, evaluation of the antioxidant activity, and implementation of density functional theory (DFT) calculations of some4- [(benzo[d]thiazol-2-ylimino) methyl]phenol derivatives. The aim of this study was to provide a comparative theoretical-experimental approach to explain the antioxidant activities of the compounds. Experimental approach: Compounds were synthesized by the reaction between para hydroxybenzaldehyde and aminobenzothiazole derivatives. The scavenging activity of the compounds was evaluated. Various electronic and energetic descriptors such as high occupied molecular orbital and low unoccupied molecular orbital energy gaps, bonding dissociation enthalpy of OH bond, ionization potential, electron affinity, hardness, softness, and spin density of the radical and neutral species were calculated. DFT calculations with B3LYP hybrid functional and 6-311++ G** basis set in the polarizable continuum model were utilized to obtain these descriptors. Findings/Results: Ascorbic acid showed the best DPPH scavenging activity. However, 4d and 4c showed promising antioxidant activity. The values of EHOMO for 4c and 4d were closer to zero, thus, they showed the best scavenging activities. The computational results were in accordance with the experimental ones. The energetic descriptors indicated that the sequential proton loss-electron transfer mechanism is preferred over other mechanisms. Conclusion and implication: Antioxidant activity of 4-[(Benzo[d]thiazol-2-ylimino) methyl]phenol derivatives confirmed by experimental and theoretical documents proves them as novel antioxidants against amyloid-β based disease.
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Affiliation(s)
- Mohammad Hossein Asgarshamsi
- Department of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - Afshin Fassihi
- Department of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - Farshid Hassanzadeh
- Department of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - Lotfollah Saghaei
- Department of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - Ahmad Movahedian Attar
- Department of Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - Hossein Mohammad-Beigi
- The Centre for Cellular Signal Patterns (CellPAT), Gustav Wieds vej 14, 8000 Aarhus C, Denmark
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19
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Wibowo S, Widyarti S, Sabarudin A, Soeatmadji DW, Sumitro SB. DFT and molecular dynamics studies of astaxanthin-metal ions (Cu 2+ and Zn 2+) complex to prevent glycated human serum albumin from possible unfolding. Heliyon 2021; 7:e06548. [PMID: 33851048 PMCID: PMC8024611 DOI: 10.1016/j.heliyon.2021.e06548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 02/02/2021] [Accepted: 03/11/2021] [Indexed: 11/09/2022] Open
Abstract
Glycated human serum albumin (gHSA) undergoes conformational changes of proteins caused by free radicals. The glycation process results in a reduced ability of albumin as an endogenous scavenger in diabetes mellitus type 2 (T2DM) patients. Astaxanthin (ASX) has been shown to prevent gHSA from experiencing unfolding events and improve protein stability of gHSA and HSA through molecular dynamics. In this study, astaxanthin is complexed with transition metal ions such as copper (Cu2+) and zinc (Zn2+) in two modes (M) and (2M). Complexing astaxanthin with Cu2+ and Zn2+ is expected to increase astaxanthin's ability as an endogenous scavenger than in native form. This research aims to characterize the antiradical property of ASX, ASX-Cu2+ and ASX-2Cu2+, ASX-Zn2+, and ASX-2Zn2+ with density functional theory (DFT) and to compare the capability to prevent conformational changes on glycated albumin through molecular dynamics simulation. DFT as implemented in Gaussian 09W, was used for all calculations. Analysis of data using GaussView 6.0. LANL2D2Z basis set and B3LYP density functional used for frequency analysis and optimization. The AutoDock Vina implemented in PyRx 0.8 is used to and receptor-ligand interactions analysis with the DS 2016 Client. YASARA for molecular dynamic simulation with 15,000 ps as running time. DFT analyzes such as energy gaps, HOMO, and LUMO patterns and electronic properties have shown that ASX-metal ions complex is better than ASX in native state as antioxidants. These results are also supported by the molecular dynamics simulation (RMSD backbone, RMSDr, RMSFr, and movie visualization), where the addition of ASX-metal ions complex on gHSA are better than ASX as a single compound in preventing gHSA from possible unfolding and maintaining protein molecule stability.
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Affiliation(s)
- Syahputra Wibowo
- Department of Biology, Faculty of Mathematics and Natural Sciences, Brawijaya University Jl. Veteran, Malang 65145, East Java, Indonesia
| | - Sri Widyarti
- Department of Biology, Faculty of Mathematics and Natural Sciences, Brawijaya University Jl. Veteran, Malang 65145, East Java, Indonesia
| | - Akhmad Sabarudin
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Brawijaya University, Jl. Veteran, Malang 65145, East Java, Indonesia
| | - Djoko Wahono Soeatmadji
- Department of Internal Medicine, School of Medicine, Brawijaya University, Jl. Veteran, Malang 65145, East Java, Indonesia
| | - Sutiman Bambang Sumitro
- Department of Biology, Faculty of Mathematics and Natural Sciences, Brawijaya University Jl. Veteran, Malang 65145, East Java, Indonesia
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20
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Chazelas P, Steichen C, Favreau F, Trouillas P, Hannaert P, Thuillier R, Giraud S, Hauet T, Guillard J. Oxidative Stress Evaluation in Ischemia Reperfusion Models: Characteristics, Limits and Perspectives. Int J Mol Sci 2021; 22:ijms22052366. [PMID: 33673423 PMCID: PMC7956779 DOI: 10.3390/ijms22052366] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/22/2021] [Accepted: 02/23/2021] [Indexed: 12/14/2022] Open
Abstract
Ischemia reperfusion injury is a complex process consisting of a seemingly chaotic but actually organized and compartmentalized shutdown of cell function, of which oxidative stress is a key component. Studying oxidative stress, which results in an imbalance between reactive oxygen species (ROS) production and antioxidant defense activity, is a multi-faceted issue, particularly considering the double function of ROS, assuming roles as physiological intracellular signals and as mediators of cellular component damage. Herein, we propose a comprehensive overview of the tools available to explore oxidative stress, particularly in the study of ischemia reperfusion. Applying chemistry as well as biology, we present the different models currently developed to study oxidative stress, spanning the vitro and the silico, discussing the advantages and the drawbacks of each set-up, including the issues relating to the use of in vitro hypoxia as a surrogate for ischemia. Having identified the limitations of historical models, we shall study new paradigms, including the use of stem cell-derived organoids, as a bridge between the in vitro and the in vivo comprising 3D intercellular interactions in vivo and versatile pathway investigations in vitro. We shall conclude this review by distancing ourselves from "wet" biology and reviewing the in silico, computer-based, mathematical modeling, and numerical simulation options: (a) molecular modeling with quantum chemistry and molecular dynamic algorithms, which facilitates the study of molecule-to-molecule interactions, and the integration of a compound in a dynamic environment (the plasma membrane...); (b) integrative systemic models, which can include many facets of complex mechanisms such as oxidative stress or ischemia reperfusion and help to formulate integrated predictions and to enhance understanding of dynamic interaction between pathways.
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Affiliation(s)
- Pauline Chazelas
- Maintenance Myélinique et Neuropathies Périphériques, Université de Limoges, EA 6309, 87032 Limoges, France; (P.C.); (F.F.)
- Laboratoire de Biochimie et Génétique Moléculaire, CHU de Limoges, 87042 Limoges, France
| | - Clara Steichen
- INSERM U1082, IRTOMIT, 86021 Poitiers, France; (C.S.); (P.H.); (R.T.); (S.G.); (T.H.)
- Faculté de Médecine et de Pharmacie, Université de Poitiers, 86074 Poitiers, France
| | - Frédéric Favreau
- Maintenance Myélinique et Neuropathies Périphériques, Université de Limoges, EA 6309, 87032 Limoges, France; (P.C.); (F.F.)
- Laboratoire de Biochimie et Génétique Moléculaire, CHU de Limoges, 87042 Limoges, France
| | - Patrick Trouillas
- INSERM U1248, IPPRITT, Université de Limoges, 87032 Limoges, France;
- RCPTM, University Palacký of Olomouc, 771 47 Olomouc, Czech Republic
| | - Patrick Hannaert
- INSERM U1082, IRTOMIT, 86021 Poitiers, France; (C.S.); (P.H.); (R.T.); (S.G.); (T.H.)
| | - Raphaël Thuillier
- INSERM U1082, IRTOMIT, 86021 Poitiers, France; (C.S.); (P.H.); (R.T.); (S.G.); (T.H.)
- Faculté de Médecine et de Pharmacie, Université de Poitiers, 86074 Poitiers, France
- Service de Biochimie, CHU de Poitiers, 86021 Poitiers, France
| | - Sébastien Giraud
- INSERM U1082, IRTOMIT, 86021 Poitiers, France; (C.S.); (P.H.); (R.T.); (S.G.); (T.H.)
- Service de Biochimie, CHU de Poitiers, 86021 Poitiers, France
| | - Thierry Hauet
- INSERM U1082, IRTOMIT, 86021 Poitiers, France; (C.S.); (P.H.); (R.T.); (S.G.); (T.H.)
- Faculté de Médecine et de Pharmacie, Université de Poitiers, 86074 Poitiers, France
- Service de Biochimie, CHU de Poitiers, 86021 Poitiers, France
- FHU SUPORT Survival Optimization in Organ Transplantation, 86021 Poitiers, France
- IBiSA Plateforme Modélisation Préclinique-Innovations Chirurgicale et Technologique (MOPICT), Do-maine Expérimental du Magneraud, 17700 Surgères, France
| | - Jérôme Guillard
- UMR CNRS 7285 IC2MP, Team 5 Chemistry, Université de Poitiers, 86073 Poitiers, France
- Correspondence: ; Tel.: +33-5-49-44-38-59
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21
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Gao Y, Zhang X, Li X, Qi R, Han Y, Kang Y, Cai R, Peng C, Qi Y. Aloe-emodin, a naturally occurring anthraquinone, is a highly potent mast cell stabilizer through activating mitochondrial calcium uniporter. Biochem Pharmacol 2021; 186:114476. [PMID: 33607072 DOI: 10.1016/j.bcp.2021.114476] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 02/09/2021] [Accepted: 02/10/2021] [Indexed: 01/07/2023]
Abstract
Mast cells play a fundamental role in immune system. Upon stimulation, they are activated via IgE dependent or independent pathway and then release granules which contain plenty of preformed constituents. Mast cell stabilizers are commonly used clinically for inhibiting the degranulation of mast cells. In the current study, we firstly identified aloe-emodin, a naturally occurring anthraquinone, was a prominent mast cell stabilizer. It could strikingly dampen IgE/FcεRI- and MAS-related G protein coupled receptor (Mrgpr)-mediated mast cell degranulation in vitro and in vivo. Mechanism study indicated that aloe-emodin rapidly and reversibly decreased cytosolic Ca2+ (Ca2+[c]) concentration through enhancing the mitochondrial Ca2+ (Ca2+[m]) uptake. After genetically silencing or pharmacologic inhibiting mitochondrial calcium uniporter (MCU), the effects of aloe-emodin on the Ca2+[c] level and mast cell degranulation were significantly weakened. In contrast to six clinical drugs with mast cell stabilizing properties (amlexanox, tranilast, ketotifen, cromolyn disodium salt, dexamethasone and pimecrolimus), aloe-emodin showed an impressive and potent inhibitory action on the mast cell degranulation. Collectively, aloe-emodin is a highly potent mast cell stabilizer. By directly activating MCU, it decreases Ca2+[c] level to suppress mast cell degranulation. Our study may provide a promising candidate for the treatment of mast cell activation-related diseases.
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Affiliation(s)
- Yuan Gao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Xiaoyu Zhang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Ximeng Li
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Ruijuan Qi
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Yixin Han
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Yuan Kang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Runlan Cai
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Cheng Peng
- Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China.
| | - Yun Qi
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China.
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22
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Rodríguez OAR, Sánchez JPM, Gamiño JAV, Benicio FO, Hernández CEM, Martínez MTS, Martínez FJM, Sandoval ZG, Ramos-Organillo Á. Synthesis of novel amides with antiradical capacity from 2-mercaptobenzimidazole and cinnamic acids: Evaluation through donor-acceptor maps and QSAR. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.128917] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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23
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Wan L, Guo K, Zhu J, Wang F, Zhu Y, Deng S, Qi H. Improvement of the oxidation resistance of silicon‐containing arylacetylene resins upon the introduction of carbazoles. J Appl Polym Sci 2020. [DOI: 10.1002/app.49642] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ling Wan
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology of Ministry of Education, School of Materials Science and Engineering East China University of Science and Technology Shanghai China
| | - Kangkang Guo
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology of Ministry of Education, School of Materials Science and Engineering East China University of Science and Technology Shanghai China
- Shanghai Key Laboratory of Advanced Polymeric Materials East China University of Science and Technology Shanghai China
| | - Junli Zhu
- Shanghai Key Laboratory of Advanced Polymeric Materials East China University of Science and Technology Shanghai China
| | - Fan Wang
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology of Ministry of Education, School of Materials Science and Engineering East China University of Science and Technology Shanghai China
| | - Yaping Zhu
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology of Ministry of Education, School of Materials Science and Engineering East China University of Science and Technology Shanghai China
| | - Shifeng Deng
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology of Ministry of Education, School of Materials Science and Engineering East China University of Science and Technology Shanghai China
| | - Huimin Qi
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology of Ministry of Education, School of Materials Science and Engineering East China University of Science and Technology Shanghai China
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Zhang Y, Song Z, Huang S, Zhu L, Liu T, Shu H, Wang L, Huang Y, Chen Y. Aloe emodin relieves Ang II-induced endothelial junction dysfunction via promoting ubiquitination mediated NLRP3 inflammasome inactivation. J Leukoc Biol 2020; 108:1735-1746. [PMID: 32573820 PMCID: PMC7754316 DOI: 10.1002/jlb.3ma0520-582r] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 05/06/2020] [Accepted: 05/26/2020] [Indexed: 01/07/2023] Open
Abstract
Recent studies have revealed that aloe emodin (AE), a natural compound from the root and rhizome of Rheum palmatum L., exhibits significant pharmacologic activities. However, the pharmacologic relevance of the compound, particularly for cardiovascular disease, remains largely unknown. Here, we hypothesized that AE could improve endothelial junction dysfunction through inhibiting the activation of NOD-like receptor family pyrin domain containing-3 (NLRP3) inflammasome regulated by NLRP3 ubiquitination, and ultimately prevent cardiovascular disease. In vivo, we used confocal microscopy to study the expression of tight junction proteins zonula occludens-1/2 (ZO-1/2) and the formation of NLRP3 inflammasome in coronary arteries of hypertension. And the experimental serum was used to detect the activation of NLRP3 inflammasome by ELISA assay. We found that AE could restore the expression of the endothelial connective proteins ZO-1/2 and decrease the release of high mobility group box1 (HMGB1), and also inhibited the formation and activation of NLRP3 inflammasome. Similarly, in vitro, our findings demonstrated that AE could restore the expression of the tight junction proteins ZO-1/2 and decrease monolayer cell permeability that related to endothelial function after stimulation by angiotensin II (Ang II) in microvascular endothelial cells (MECs). We also demonstrated that AE could inhibit Ang II-induced NLRP3 inflammasome formation and activation, which were regulated by NLRP3 ubiquitination in MECs, as shown by fluorescence confocal microscopy and Western blot. Together with these changes, we revealed a new protection mechanism of AE that inhibited NLRP3 inflammasome activation and decreased the release of HMGB1 by promoting NLRP3 ubiquitination. Our findings implicated that AE exhibited immense potential and specific therapeutic value in hypertension-related cardiovascular disease in the early stage and the development of innovative drugs.
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Affiliation(s)
- Yi Zhang
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou University Town, Guangzhou, China
| | - Ziqing Song
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou University Town, Guangzhou, China
| | - Shan Huang
- Department of Stomatology, The First Affiliated Hospital, The School of Dental Medicine, Jinan University, Guangzhou, China
| | - Li Zhu
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou University Town, Guangzhou, China
| | - Tianyi Liu
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou University Town, Guangzhou, China
| | - Hongyan Shu
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou University Town, Guangzhou, China
| | - Lei Wang
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou University Town, Guangzhou, China
| | - Yi Huang
- Department of Stomatology, The First Affiliated Hospital, The School of Dental Medicine, Jinan University, Guangzhou, China
| | - Yang Chen
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, Guangzhou University Town, Guangzhou, China
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25
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Anitha S, Krishnan S, Senthilkumar K, Sasirekha V. Theoretical investigation on the structure and antioxidant activity of (+) catechin and (−) epicatechin – a comparative study. Mol Phys 2020. [DOI: 10.1080/00268976.2020.1745917] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- S. Anitha
- Department of Physics, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, India
| | - S. Krishnan
- Department of Physics, Bharathiar University, Coimbatore, India
| | - K. Senthilkumar
- Department of Physics, Bharathiar University, Coimbatore, India
| | - V. Sasirekha
- Department of Physics, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, India
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26
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Boulebd H. DFT study of the antiradical properties of some aromatic compounds derived from antioxidant essential oils: C–H bond vs. O–H bond. Free Radic Res 2019; 53:1125-1134. [DOI: 10.1080/10715762.2019.1690652] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Houssem Boulebd
- Department of Chemistry, Faculty of Exact Sciences, University of Frères Mentouri Constantine 1, Constantine, Algeria
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