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Polyakov NE, Mastova AV, Kruppa AI, Asfandiarov NL, Pshenichnyuk SA. Glycyrrhetinic acid interaction with solvated and free electrons studied by the CIDNP and dissociative electron attachment techniques. J Chem Phys 2024; 161:035102. [PMID: 39007395 DOI: 10.1063/5.0214342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 07/01/2024] [Indexed: 07/16/2024] Open
Abstract
Electron transfer plays a crucial role in living systems, including the generation of reactive oxygen species (ROS). Oxygen acts as the terminal electron acceptor in the respiratory chains of aerobic organisms as well as in some photoinduced processes followed by the formation of ROS. This is why the participation of exogenous antioxidants in electron transfer processes in living systems is of particular interest. In the present study, using chemically induced dynamic nuclear polarization (CIDNP) and dissociative electron attachment (DEA) techniques, we have elucidated the affinity of solvated and free electrons to glycyrrhetinic acid (GA)-the aglicon of glycyrrhizin (the main active component of Licorice root). CIDNP is a powerful instrument to study the mechanisms of electron transfer reactions in solution, but the DEA technique shows its effectiveness in gas phase processes. For CIDNP experiments, the photoionization of the dianion of 5-sulfosalicylic acid (HSSA2-) was used as a model reaction of solvated electron generation. DEA experiments testify that GA molecules are even better electron acceptors than molecular oxygen, at least under gas-phase conditions. In addition, the effect of the solvent on the energetics of the reactants is discussed.
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Affiliation(s)
- Nikolay E Polyakov
- Voevodsky Institute of Chemical Kinetics and Combustion, Russian Academy of Sciences, Institutskaya Str. 3, 630090 Novosibirsk, Russia
| | - Anna V Mastova
- Voevodsky Institute of Chemical Kinetics and Combustion, Russian Academy of Sciences, Institutskaya Str. 3, 630090 Novosibirsk, Russia
| | - Alexander I Kruppa
- Voevodsky Institute of Chemical Kinetics and Combustion, Russian Academy of Sciences, Institutskaya Str. 3, 630090 Novosibirsk, Russia
| | - Nail L Asfandiarov
- Institute of Molecule and Crystal Physics, Ufa Federal Research Centre, Russian Academy of Sciences, Prospekt Oktyabrya 151, 450075 Ufa, Russia
| | - Stanislav A Pshenichnyuk
- Institute of Molecule and Crystal Physics, Ufa Federal Research Centre, Russian Academy of Sciences, Prospekt Oktyabrya 151, 450075 Ufa, Russia
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Pshenichnyuk SA, Asfandiarov NL, Markova AV, Komolov AS, Timoshnikov VA, Polyakov NE. Elementary processes triggered in curcumin molecule by gas-phase resonance electron attachment and by photoexcitation in solution. J Chem Phys 2023; 159:214305. [PMID: 38051100 DOI: 10.1063/5.0180053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 11/14/2023] [Indexed: 12/07/2023] Open
Abstract
Electron-driven processes in isolated curcumin (CUR) molecules are studied by means of dissociative electron attachment (DEA) spectroscopy under gas-phase conditions. Elementary photostimulated reactions initiated in CUR molecules under UV irradiation are studied using the chemically induced dynamic nuclear polarization method in an acetonitrile solvent. Density functional theory is applied to elucidate the energetics of fragmentation of CUR by low-energy (0-15 eV) resonance electron attachment and to characterize various CUR radical forms. The adiabatic electron affinity of CUR molecule is experimentally estimated to be about 1 eV. An extra electron attachment to the π1* LUMO and π2* molecular orbitals is responsible for the most intense DEA signals observed at thermal electron energy. The most abundant long-lived (hundreds of micro- to milliseconds) molecular negative ions CUR- are detected not only at the thermal energy of incident electrons but also at 0.6 eV, which is due to the formation of the π3* and π4* temporary negative ion states predicted to lie around 1 eV. Proton-assisted electron transfer between CUR molecules is registered under UV irradiation. The formation of both radical-anions and radical-cations of CUR is found to be more favorable in its enol form. The present findings shed some light on the elementary processes triggered in CUR by electrons and photons and, therefore, can be useful to understand the molecular mechanisms responsible for a variety of biological effects produced by CUR.
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Affiliation(s)
- Stanislav A Pshenichnyuk
- Institute of Molecule and Crystal Physics, Ufa Federal Research Centre, Russian Academy of Sciences, Prospekt Oktyabrya 151, 450075 Ufa, Russia
| | - Nail L Asfandiarov
- Institute of Molecule and Crystal Physics, Ufa Federal Research Centre, Russian Academy of Sciences, Prospekt Oktyabrya 151, 450075 Ufa, Russia
| | - Angelina V Markova
- Institute of Molecule and Crystal Physics, Ufa Federal Research Centre, Russian Academy of Sciences, Prospekt Oktyabrya 151, 450075 Ufa, Russia
| | - Alexei S Komolov
- St. Petersburg State University, Universitetskaya nab. 7/9, 199034 St. Petersburg, Russia
| | - Viktor A Timoshnikov
- Voevodsky Institute of Chemical Kinetics and Combustion, Russian Academy of Sciences, Institutskaya str. 3, 630090 Novosibirsk, Russia
| | - Nikolay E Polyakov
- Voevodsky Institute of Chemical Kinetics and Combustion, Russian Academy of Sciences, Institutskaya str. 3, 630090 Novosibirsk, Russia
- Institute of Solid State Chemistry and Mechanochemistry, Russian Academy of Sciences, Kutateladze 18, 630128 Novosibirsk, Russia
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Long Z, Xiang W, He Q, Xiao W, Wei H, Li H, Guo H, Chen Y, Yuan M, Yuan X, Zeng L, Yang K, Deng Y, Huang Z. Efficacy and safety of dietary polyphenols in rheumatoid arthritis: A systematic review and meta-analysis of 47 randomized controlled trials. Front Immunol 2023; 14:1024120. [PMID: 37033930 PMCID: PMC10073448 DOI: 10.3389/fimmu.2023.1024120] [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: 08/21/2022] [Accepted: 01/27/2023] [Indexed: 04/11/2023] Open
Abstract
OBJECTIVE To evaluate safety and efficacy of dietary polyphenols in the treatment of rheumatoid arthritis (RA). METHODS CNKI, Pubmed, Cochrane library, Embase were searched to collect randomized controlled trials (RCTs) of dietary polyphenols in the treatment of RA. The databases were searched from the time of their establishment to November 8nd, 2022. After 2 reviewers independently screened the literature, extracted data, and assessed the risk of bias of the included studies, Meta-analysis was performed using RevMan5.4 software. RESULTS A total of 49 records (47 RCTs) were finally included, involving 3852 participants and 15 types of dietary polyphenols (Cinnamon extract, Cranberry extract, Crocus sativus L. extract, Curcumin, Garlic extract, Ginger extract, Hesperidin, Olive oil, Pomegranate extract, Puerarin, Quercetin, Resveratrol, Sesamin, Tea polyphenols, Total glucosides of paeony). Pomegranate extract, Resveratrol, Garlic extract, Puerarin, Hesperidin, Ginger extract, Cinnamon extract, Sesamin only involve in 1 RCT. Cranberry extract, Crocus sativus L. extract, Olive oil, Quercetin, Tea polyphenols involve in 2 RCTs. Total glucosides of paeony and Curcumin involve in more than 3 RCTs. These RCTs showed that these dietary polyphenols could improve disease activity score for 28 joints (DAS28), inflammation levels or oxidative stress levels in RA. The addition of dietary polyphenols did not increase adverse events. CONCLUSION Dietary polyphenols may improve DAS28, reduce C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR), and improve oxidative stress, etc. However, more RCTs are needed to verify or modify the efficacy and safety of dietary polyphenols. SYSTEMATIC REVIEW REGISTRATION https://www.crd.york.ac.uk/prospero/, identifier CRD42022315645.
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Affiliation(s)
- Zhiyong Long
- Department of Rehabilitation Medicine, Guangzhou Panyu Central Hospital, Guangzhou, China
- *Correspondence: Zhiyong Long, ; Wang Xiang, ; Wei Xiao, ; Zhen Huang,
| | - Wang Xiang
- The First People's Hospital of Changde City, Changde, China
- *Correspondence: Zhiyong Long, ; Wang Xiang, ; Wei Xiao, ; Zhen Huang,
| | - Qi He
- People's Hospital of Ningxiang City, Ningxiang, China
| | - Wei Xiao
- The First People's Hospital of Changde City, Changde, China
- *Correspondence: Zhiyong Long, ; Wang Xiang, ; Wei Xiao, ; Zhen Huang,
| | - Huagen Wei
- Dental Materials Science, Applied Oral Sciences and Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Hao Li
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hua Guo
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yuling Chen
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Mengxia Yuan
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou University Medical College, Shantou, China
| | - Xiao Yuan
- Hunan University of Chinese Medicine, Changsha, China
| | - Liuting Zeng
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Kailin Yang
- Hunan University of Chinese Medicine, Changsha, China
| | | | - Zhen Huang
- Department of Rehabilitation Medicine, Guangzhou Panyu Central Hospital, Guangzhou, China
- *Correspondence: Zhiyong Long, ; Wang Xiang, ; Wei Xiao, ; Zhen Huang,
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de Miranda EGF, Cornetta LM, Varella MTDN. Low-Energy Electron Interactions with Resveratrol and Resorcinol: Anion States and Likely Dissociation Pathways. J Phys Chem A 2022; 126:7667-7674. [PMID: 36251590 DOI: 10.1021/acs.jpca.2c05789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report a computational study of the anion states of the resveratrol (RV) and resorcinol (RS) molecules, also investigating dissociative electron attachment (DEA) pathways. RV has well-known beneficial effects in human health, and its antioxidant activity was previously associated with DEA reactions producing H2. Our calculations indicate a valence bound state (π1*) and four resonances (π2* to π5*) for that system. While the computed thermodynamic thresholds are compatible with DEA reactions producing H2 at 0 eV, the well-known mechanism involving vibrational Feshbach resonances built on a dipole bound state should not be present in RV. Our results suggest that the shallow π1* valence bound state is expected to account for H2 elimination, probably involving π1*/σOH* couplings along the vibration dynamics. The RS molecule is also an oxidant and a subunit of RV. Because two close-lying hydroxyl groups are found in the RS moiety, the H2-elimination reaction in RV should take place at the RS site. Our calculations point out a correspondence between the anion states of RV and RS and even between the thresholds. Nevertheless, the absence of bound anion states in RS, indicated by our calculations, is expected to suppress the H2-formation channel at 0 eV. One is led to conclude that the ethene and phenol subunits in RV stabilize the π1* state, thus switching on the DEA mechanism producing H2.
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Affiliation(s)
- Ely G F de Miranda
- Instituto de Física, Universidade de São Paulo, Rua do Matão 1371, 05508-090São Paulo, São Paulo, Brazil
| | - Lucas M Cornetta
- Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, Rua Sérgio Buarque de Holanda, 777 Cidade Universitária, 13083-859Campinas, São Paulo, Brazil
| | - Márcio T do N Varella
- Instituto de Física, Universidade de São Paulo, Rua do Matão 1371, 05508-090São Paulo, São Paulo, Brazil
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Karimi A, Azar PS, Kadkhodayi M, Tandorost A, Vajdi M, Shoorei H, Farhangi MA. A comprehensive insight into effects of resveratrol on molecular mechanism in rheumatoid arthritis: A literature systematic review. Int J Rheum Dis 2022; 25:827-843. [PMID: 35754354 DOI: 10.1111/1756-185x.14356] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/29/2022] [Accepted: 05/15/2022] [Indexed: 02/01/2023]
Abstract
AIM Rheumatoid arthritis (RA) is an inflammatory autoimmune disease, which is characterized by massive pain and destruction of synovial joints, leads to bone erosion, damage to cartilage, and disability. Several studies suggested that resveratrol supplementation may be effective in the prevention and management of RA. Therefore, a systematic review was conducted to summarize published studies that assess the effect of resveratrol supplementation on the complications of RA. METHODS A comprehensive search to identify in vitro, animal, and human studies investigating the impact of resveratrol on the complications of RA was performed up to February 2022. Two independent reviewers evaluated studies based on inclusion/exclusion criteria and performed data extraction. RESULTS All studies examining the effects of resveratrol supplementation on the complications of RA were included. From a total of 571 retrieved articles, 32 studies were eligible for the current systematic review. The evidence reviewed here indicates that resveratrol supplementation may exert beneficial effects on the complications of RA by attenuating inflammation and oxidative stress, modulating the immune response, and down-regulating the messenger RNA expression of genes related to inflammatory pathways. CONCLUSION Due to the promising therapeutic effects of resveratrol on RA complications and limited number of human studies in this subject, further clinical trials are suggested.
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Affiliation(s)
- Arash Karimi
- Traditional Medicine and Hydrotherapy Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Pouria Sefidmooye Azar
- Department of Nutrition and Hospitality Management, School of Applied Sciences, The University of Mississippi, University Park, Mississippi, USA
| | - Mahtab Kadkhodayi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Arash Tandorost
- Traditional Medicine and Hydrotherapy Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Mahdi Vajdi
- Student Research Committee, Department of Clinical Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hamed Shoorei
- Department of Anatomical Sciences, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
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Sedmidubská B, Luxford TFM, Kočišek J. Electron attachment to isolated and microhydrated favipiravir. Phys Chem Chem Phys 2021; 23:21501-21511. [PMID: 34382983 DOI: 10.1039/d1cp02686k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Electron attachment and its equivalent in complex environments, single-electron reduction, are important in many biological processes. Here, we experimentally study the electron attachment to favipiravir, a well-known antiviral agent. Electron attachment spectroscopy is used to explore the energetics of associative (AEA) and dissociative (DEA) electron attachment to isolated favipiravir. AEA dominates the interaction and the yields of the fragment anions after DEA are an order of magnitude lower than that of the parent anion. DEA primary proceeds via decomposition of the CONH2 functional group, which is supported by reaction threshold calculations using ab initio methods. Mass spectrometry of small favipiravir-water clusters demonstrates that a lot of energy is transferred to the solvent upon electron attachment. The energy gained upon electron attachment, and the high stability of the parent anion were previously suggested as important properties for the action of several electron-affinic radiosensitizers. If any of these mechanisms cause synergism in chemo-radiation therapy, favipiravir could be repurposed as a radiosensitizer.
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Affiliation(s)
- Barbora Sedmidubská
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 3, 18223 Prague, Czech Republic. and Department of Nuclear Chemistry, Faculty of Nuclear Sciences and Physical Engineering, Břehová 7, 11519 Prague, Czech Republic
| | - Thomas F M Luxford
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 3, 18223 Prague, Czech Republic.
| | - Jaroslav Kočišek
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 3, 18223 Prague, Czech Republic.
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Pshenichnyuk SA, Modelli A. Electron Attachment to Isolated Molecules as a Probe to Understand Mitochondrial Reductive Processes. Methods Mol Biol 2021; 2277:101-124. [PMID: 34080147 DOI: 10.1007/978-1-0716-1270-5_7] [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] [Indexed: 02/05/2023]
Abstract
This chapter describes the complementary experimental techniques Electron Transmission Spectroscopy and Dissociative Electron Attachment Spectroscopy, two of the most suitable means for investigating interactions between electrons and gas-phase molecules, resonance formation of temporary molecular negative ions, and their possible decay through the dissociative electron attachment (DEA) mechanism. The latter can be seen as the gas-phase counterpart of the transfer of a solvated electron in solution, accompanied by dissociation of the molecular anion, referred to as dissociative electron transfer (DET). DET takes place in vivo under reductive conditions, for instance, in the intermembrane space of mitochondria under interaction of xenobiotic molecules possessing high electron affinity with electrons "leaked" from the mitochondrial respiratory chain. A likely mechanism of the toxic activity of dichlorodiphenyltrichloroethane based on its DEA properties is briefly outlined, and compared with the well-established harmful effects of the model toxicant carbon tetrachloride ascribed to reductive dechlorination in a cellular ambient. A possible mechanism of the antioxidant activity of polyphenolic compounds present near the main site of superoxide anion production in mitochondria is also briefly discussed.
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Affiliation(s)
- Stanislav A Pshenichnyuk
- Institute of Molecule and Crystal Physics, Ufa Federal Research Centre, Russian Academy of Sciences, Ufa, Russia.
| | - Alberto Modelli
- Dipartimento di Chimica "G. Ciamician", Università di Bologna, Bologna, Italy
- Centro Interdipartimentale di Ricerca in Scienze Ambientali, Ravenna, Italy
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Castro LDS, Bracht L, Peralta RM, Maróstica HVP, Comar JF, Babeto de Sá-Nakanishi A, Bracht A. Actions of multiple doses of resveratrol on oxidative and inflammatory markers in plasma and brain of healthy and arthritic rats. Basic Clin Pharmacol Toxicol 2021; 128:80-90. [PMID: 32772505 DOI: 10.1111/bcpt.13475] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/20/2020] [Accepted: 08/03/2020] [Indexed: 11/27/2022]
Abstract
The actions of resveratrol in brain and plasma of rats with adjuvant-induced arthritis were investigated. Resveratrol was administered orally during a period of 23 days. A major concern of the present work was to explore an ample range of daily doses (10-200 mg/kg). Several oxidative and inflammatory markers were measured. Important effects of resveratrol treatment were the normalization of the plasma myeloperoxidase activity (inflammatory marker), the normalization of the brain xanthine oxidase activity (reactive oxygen species source) and the near-normalization of the catalase activity in the brain (antioxidant defence). These effects presented obvious dose dependencies in the range up to 200 mg/kg. Resveratrol also reduced protein and lipid damage within the lowest dose ranges investigated, and its action as a free radical scavenger activity was enhanced in brain mitochondria of arthritic rats. Resveratrol failed in restoring the diminished albumin levels and plasma protein thiols in arthritic rats. The latter, however, were substantially increased in healthy rats at low doses (up to 50 mg/kg), a sign of antioxidant action. This increase was reversed at higher doses, a sign of pro-oxidant action. The observations agree with the notion that low doses of resveratrol might be useful as an adjuvant to the conventional antirheumatic drugs.
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Affiliation(s)
| | - Lívia Bracht
- Department of Biochemistry, University of Maringá, Maringá, Brazil
| | | | | | | | | | - Adelar Bracht
- Department of Biochemistry, University of Maringá, Maringá, Brazil
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Muftakhov MV, Shchukin PV. Resonance Electron Capture by Cysteine and N-Acetylcysteine Molecules. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2020. [DOI: 10.1134/s0036024420010240] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Muftakhov MV, Shchukin PV. Resonant electron capture by kinetin and 6-benzylaminopurine molecules. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2019.136967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Kossoski F, Varella MTDN, Barbatti M. On-the-fly dynamics simulations of transient anions. J Chem Phys 2019; 151:224104. [DOI: 10.1063/1.5130547] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- F. Kossoski
- Aix Marseille University, CNRS, ICR, Marseille, France
| | - M. T. do N. Varella
- Institute of Physics, University of São Paulo, Rua do Matão 1731, 05508-090 São Paulo, Brazil
| | - M. Barbatti
- Aix Marseille University, CNRS, ICR, Marseille, France
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12
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Olivares-Marin IK, González-Hernández JC, Madrigal-Perez LA. Resveratrol cytotoxicity is energy-dependent. J Food Biochem 2019; 43:e13008. [PMID: 31385323 DOI: 10.1111/jfbc.13008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 07/03/2019] [Accepted: 07/21/2019] [Indexed: 12/16/2022]
Abstract
Resveratrol is a phytochemical that may promote health. However, it has also been reported to be a toxic compound. The molecular mechanism by which resveratrol acts remains unclear. The inhibition of the oxidative phosphorylation (OXPHOS) pathway appears to be the molecular mechanism of resveratrol. Taking this into account, we propose that the cytotoxic properties of resveratrol depend on the energy (e.g., carbohydrates, lipids, and proteins) availability in the cells. In this regard, in a condition with low energy accessibility, resveratrol could enhance ATP starvation to lethal levels. In contrast, when cells are supplemented with high quantities of energy and resveratrol, the inhibition of OXPHOS might produce a low-energy environment, mimicking the beneficial effects of caloric restriction. This review suggests that investigating a possible complex relationship between caloric intake and the differential effects of resveratrol on OXPHOS may be justified. PRACTICAL APPLICATIONS: A low-calorie diet accompanied by significant levels of resveratrol might modify cellular bioenergetics, which could impact cellular viability and enhance the anti-cancer properties of resveratrol.
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Affiliation(s)
| | | | - Luis Alberto Madrigal-Perez
- Laboratorio de Biotecnología Microbiana, Instituto Tecnológico Superior de Ciudad Hidalgo, Ciudad Hidalgo, Mexico
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Shang Y, Zhou H, Li X, Zhou J, Chen K. Theoretical studies on the antioxidant activity of viniferifuran. NEW J CHEM 2019. [DOI: 10.1039/c9nj02735a] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
DFT studies reveal the thermodynamics and kinetics of radical scavenging reactions of a resveratrol dimer derivative – viniferifuran.
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Affiliation(s)
- Yaxuan Shang
- School of Materials Science and Engineering
- Central South University of Forestry and Technology
- Changsha 410004
- P. R. China
| | - Huakang Zhou
- School of Materials Science and Engineering
- Central South University of Forestry and Technology
- Changsha 410004
- P. R. China
| | - Xiangzhou Li
- School of Materials Science and Engineering
- Central South University of Forestry and Technology
- Changsha 410004
- P. R. China
- Institute of Natural Product Research and Development
| | - Jun Zhou
- School of Materials Science and Engineering
- Central South University of Forestry and Technology
- Changsha 410004
- P. R. China
- Institute of Natural Product Research and Development
| | - Kai Chen
- School of Materials Science and Engineering
- Central South University of Forestry and Technology
- Changsha 410004
- P. R. China
- College of Chemistry and Chemical Engineering
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Davis D, Bhushan KG, Sajeev Y, Cederbaum LS. A Concerted Synchronous [2 + 2] Cycloreversion Repair Catalyzed by Two Electrons. J Phys Chem Lett 2018; 9:6973-6977. [PMID: 30481035 DOI: 10.1021/acs.jpclett.8b03256] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The current understanding of photoenzyme-catalyzed [2 + 2] cycloreversion repair of cyclobutane pyrimidine dimer (CPD) is that a photogenerated electron from the photolyase enzyme catalyzes the repair. This one-electron catalyzed repair is a sequential two-bond breaking cycloreversion of the cyclobutane center and involves a negative ion radical as an intermediate. Here, by resonantly capturing two exogenous low-energy electrons into the molecular field of a CPD, we show that the concerted synchronous two-bond breaking reaction, which is intermediate-free, and hence a safe repair, is feasible through two-electron catalysis.
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Affiliation(s)
| | | | | | - L S Cederbaum
- Theoretische Chemie, Physikalisch-Chemisches Institut , Universität Heidelberg , Im Neuenheimer Feld 229 , D-69120 Heidelberg , Germany
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15
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Pshenichnyuk SA, Rakhmeyev RG, Asfandiarov NL, Komolov AS, Modelli A, Jones D. Can the Electron-Accepting Properties of Odorants Be Involved in Their Recognition by the Olfactory System? J Phys Chem Lett 2018; 9:2320-2325. [PMID: 29665679 DOI: 10.1021/acs.jpclett.8b00704] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The present study examines the possible importance of the electron-accepting properties of odorant molecules and, in particular, the formation and decay of temporary negative ions via low-energy electron attachment as a possible contribution toward understanding odorant recognition by olfactory receptors (ORs). Fragments formed by dissociative electron attachment (DEA) of mustard oil odorants represented by a series of isothiocyanates are studied experimentally using DEA spectroscopy and DFT calculations. Relative intensities for the most abundant fragment species, S- and SCN-, are found to be characteristic of structurally similar odorants under investigation. This novel approach for the investigation of odorants may contribute to understanding the initial stages of the olfactory process and may provide a means to distinguish between odorants and their interactions with the olfactory receptor system.
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Affiliation(s)
- Stanislav A Pshenichnyuk
- Institute of Molecule and Crystal Physics, Ufa Federal Research Centre , Russian Academy of Sciences , Prospeκt Oktyabrya 151 , 450075 Ufa , Russia
| | - Rustam G Rakhmeyev
- Institute of Molecule and Crystal Physics, Ufa Federal Research Centre , Russian Academy of Sciences , Prospeκt Oktyabrya 151 , 450075 Ufa , Russia
| | - Nail L Asfandiarov
- Institute of Molecule and Crystal Physics, Ufa Federal Research Centre , Russian Academy of Sciences , Prospeκt Oktyabrya 151 , 450075 Ufa , Russia
| | - Alexei S Komolov
- St. Petersburg State University , Universitetskaya nab. 7/9 , 199034 St. Petersburg , Russia
| | - Alberto Modelli
- Dipartimento di Chimica "G. Ciamician" , Università di Bologna , via Selmi 2 , 40126 Bologna , Italy
- Centro Interdipartimentale di Ricerca in Scienze Ambientali , via S. Alberto 163 , 48123 Ravenna , Italy
| | - Derek Jones
- ISOF, Istituto per la Sintesi Organica e la Fotoreattività, C.N.R. , via Gobetti 101 , 40129 Bologna , Italy
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Pshenichnyuk SA, Modelli A, Komolov AS. Interconnections between dissociative electron attachment and electron-driven biological processes. INT REV PHYS CHEM 2018. [DOI: 10.1080/0144235x.2018.1461347] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Stanislav A. Pshenichnyuk
- Institute of Molecule and Crystal Physics – Subdivision of the Ufa Research Centre of the Russian Academy of Sciences, Ufa, Russia
| | - Alberto Modelli
- Dipartimento di Chimica ‘G. Ciamician’, Università di Bologna, Bologna, Italy
- Centro Interdipartimentale di Ricerca in Scienze Ambientali, Ravenna, Italy
| | - Alexei S. Komolov
- Department of Solid State Electronics, St. Petersburg State University, St. Petersburg, Russia
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Darvishzad T, Kurek SS. Anti- and pro-oxidative activity measured directly as the extent of 8-oxoguanine production. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.04.074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Pshenichnyuk SA, Modelli A, Jones D, Lazneva EF, Komolov AS. Low-Energy Electron Interaction with Melatonin and Related Compounds. J Phys Chem B 2017; 121:3965-3974. [PMID: 28394598 DOI: 10.1021/acs.jpcb.7b01408] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The electron attaching properties and fragmentation of temporary negative ions of melatonin and its biosynthetic precursor tryptophan are studied in vacuo using dissociative electron attachment (DEA) spectroscopy. The experimental findings are interpreted in silico with the support of Hartree-Fock and density functional theory calculations of empty orbital energies and symmetries, and evaluation of the electron affinities of the indolic molecules under investigation. The only fragment anions formed by DEA to melatonin at incident electron energies below 2 eV are associated with the elimination of a hydrogen atom (energetically favored from the NH site of the pyrrole ring, leaving the ring intact) or a CH3· radical from the temporary molecular negative ion. Opening of the pyrrole ring of melatonin is not detected over the whole electron energy range of 0-14 eV. The DEA spectra of l- and d-tryptophan are almost identical under the present experimental conditions. The adiabatic electron affinity of melatonin is predicted to be -0.49 eV at the B3LYP/6-31+G(d) level, indicating that the DEA mechanism in melatonin is likely to be present in most life forms given the availability of low energy electrons in living systems in both plant and animal kingdoms. In particular, H atom donation usually associated with free-radical scavenging activity can be stimulated by electron attachment and N-H bond cleavage at electron energies around 1 eV.
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Affiliation(s)
- Stanislav A Pshenichnyuk
- Institute of Molecule and Crystal Physics, Ufa Research Centre, Russian Academy of Sciences , Prospeκt Oktyabrya 151, 450075 Ufa, Russia.,St. Petersburg State University , Universitetskaya nab. 7/9, 199034 St. Petersburg, Russia
| | - Alberto Modelli
- Dipartimento di Chimica "G. Ciamician″, Università di Bologna , via Selmi 2, 40126 Bologna, Italy.,Centro Interdipartimentale di Ricerca in Scienze Ambientali , via S. Alberto 163, 48123 Ravenna, Italy
| | - Derek Jones
- ISOF, Istituto per la Sintesi Organica e la Fotoreattività , C.N.R., via Gobetti 101, 40129 Bologna, Italy
| | - Eleonora F Lazneva
- St. Petersburg State University , Universitetskaya nab. 7/9, 199034 St. Petersburg, Russia
| | - Alexei S Komolov
- St. Petersburg State University , Universitetskaya nab. 7/9, 199034 St. Petersburg, Russia
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Pshenichnyuk SA, Modelli A, Lazneva EF, Komolov AS. Role of Resonance Electron Attachment in Phytoremediation of Halogenated Herbicides. J Phys Chem B 2016; 120:12098-12104. [DOI: 10.1021/acs.jpcb.6b10149] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Stanislav A. Pshenichnyuk
- Institute
of Molecule and Crystal Physics, Ufa Research Centre, Russian Academy of Sciences, Prospeκt Oktyabrya 151, 450075 Ufa, Russia
- St. Petersburg State University, Universitetskaya nab. 7/9, 199034 St. Petersburg, Russia
| | - Alberto Modelli
- Dipartimento
di Chimica “G. Ciamician”, Università di Bologna, via Selmi 2, 40126 Bologna, Italy
- Centro Interdipartimentale di Ricerca in Scienze Ambientali, via S. Alberto 163, 48123 Ravenna, Italy
| | - Eleonora F. Lazneva
- St. Petersburg State University, Universitetskaya nab. 7/9, 199034 St. Petersburg, Russia
| | - Alexei S. Komolov
- St. Petersburg State University, Universitetskaya nab. 7/9, 199034 St. Petersburg, Russia
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Pshenichnyuk SA, Modelli A, Lazneva EF, Komolov AS. Hypothesis for the Mechanism of Ascorbic Acid Activity in Living Cells Related to Its Electron-Accepting Properties. J Phys Chem A 2016; 120:2667-76. [DOI: 10.1021/acs.jpca.6b02272] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stanislav A. Pshenichnyuk
- Institute of Molecule and Crystal Physics,
Ufa Research Centre, Russian Academy of Sciences, Prospekt Oktyabrya
151, 450075 Ufa, Russia
- Physics Faculty, St. Petersburg State University, Uljanovskaja 1, 198504 St. Petersburg, Russia
| | - Alberto Modelli
- Dipartimento
di Chimica “G. Ciamician”, Università di Bologna, via Selmi 2, 40126 Bologna, Italy
- Centro Interdipartimentale di Ricerca in Scienze Ambientali, via S. Alberto 163, 48123 Ravenna, Italy
| | - Eleonora F. Lazneva
- Physics Faculty, St. Petersburg State University, Uljanovskaja 1, 198504 St. Petersburg, Russia
| | - Alexei S. Komolov
- Physics Faculty, St. Petersburg State University, Uljanovskaja 1, 198504 St. Petersburg, Russia
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Pshenichnyuk SA, Elkin YN, Kulesh NI, Lazneva EF, Komolov AS. Low-energy electron interaction with retusin extracted from Maackia amurensis: towards a molecular mechanism of the biological activity of flavonoids. Phys Chem Chem Phys 2016; 17:16805-12. [PMID: 26058603 DOI: 10.1039/c5cp02890f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The antioxidant isoflavone retusin efficiently attaches low-energy electrons in vacuo, generating fragment species via dissociative electron attachment (DEA), as has been shown by DEA spectroscopy. According to in silico results obtained by means of density functional theory, retusin is able to attach solvated electrons and could be decomposed under reductive conditions in vivo, for instance, near the mitochondrial electron transport chain, analogous to gas-phase DEA. The most intense decay channels of retusin temporary negative ions were found to be associated with the elimination of H atoms and H2 molecules. Doubly dehydrogenated fragment anions were predicted to possess a quinone structure. It is thought that molecular hydrogen, known for its selective antioxidant properties, can be efficiently generated via electron attachment to retusin in mitochondria and may be responsible for its antioxidant activity. The second abundant species, i.e., quinone bearing an excess negative charge, can serve as an electron carrier and can return the captured electron back to the respiration cycle. The number of OH substituents and their relative positions are crucial for the present molecular mechanism, which can explain the radical scavenging activity of polyphenolic compounds.
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Affiliation(s)
- Stanislav A Pshenichnyuk
- Institute of Molecule and Crystal Physics, Ufa Research Centre, Russian Academy of Sciences, Prospect Oktyabrya 151, 450075 Ufa, Russia.
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