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Łuniewski S, Rogowska W, Łozowicka B, Iwaniuk P. Plants, Microorganisms and Their Metabolites in Supporting Asbestos Detoxification-A Biological Perspective in Asbestos Treatment. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1644. [PMID: 38612157 PMCID: PMC11012542 DOI: 10.3390/ma17071644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 02/13/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024]
Abstract
Many countries banned asbestos due to its toxicity, but considering its colossal use, especially in the 1960s and 1970s, disposing of waste containing asbestos is the current problem. Today, many asbestos disposal technologies are known, but they usually involve colossal investment and operating expenses, and the end- and by-products of these methods negatively impact the environment. This paper identifies a unique modern direction in detoxifying asbestos minerals, which involves using microorganisms and plants and their metabolites. The work comprehensively focuses on the interactions between asbestos and plants, bacteria and fungi, including lichens and, for the first time, yeast. Biological treatment is a prospect for in situ land reclamation and under industrial conditions, which can be a viable alternative to landfilling and an environmentally friendly substitute or supplement to thermal, mechanical, and chemical methods, often characterized by high cost intensity. Plant and microbial metabolism products are part of the green chemistry trend, a central strategic pillar of global industrial and environmental development.
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Affiliation(s)
- Stanisław Łuniewski
- Faculty of Economics, L.N. Gumilyov Eurasian National University, Satpayev 2, Astana 010008, Kazakhstan; (S.Ł.); (B.Ł.)
- Faculty of Economic Sciences, The Eastern European University of Applied Sciences in Bialystok, Ciepła 40 St., 15-472 Białystok, Poland
| | - Weronika Rogowska
- Department of Environmental Engineering Technology and Systems, Faculty of Civil Engineering and Environmental Sciences, Białystok University of Technology, Wiejska 45E St., 15-351 Białystok, Poland
- Institute of Plant Protection—National Research Institute, Chełmońskiego 22 St., 15-195 Białystok, Poland;
| | - Bożena Łozowicka
- Faculty of Economics, L.N. Gumilyov Eurasian National University, Satpayev 2, Astana 010008, Kazakhstan; (S.Ł.); (B.Ł.)
- Institute of Plant Protection—National Research Institute, Chełmońskiego 22 St., 15-195 Białystok, Poland;
| | - Piotr Iwaniuk
- Institute of Plant Protection—National Research Institute, Chełmońskiego 22 St., 15-195 Białystok, Poland;
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2
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Li L, Li X, Zeng L, Wang Z, Deng N, Huang P, Hou J, Jian S, Zhao D. Molecular mechanism of the NOS/NOX regulation of antibacterial activity in Eriocheir sinensis. Comp Biochem Physiol B Biochem Mol Biol 2024; 271:110945. [PMID: 38278206 DOI: 10.1016/j.cbpb.2024.110945] [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: 08/25/2023] [Revised: 01/16/2024] [Accepted: 01/16/2024] [Indexed: 01/28/2024]
Abstract
To elucidate the role of nitric oxide synthase (NOS), which produces the free radical nitric oxide (NO), and nicotinamide adenine dinucleotide phosphate oxidase (NOX), which produces the superoxide anion (O2-), in the innate immunity of Eriocheir sinensis, the full lengths of the NOS and NOX genes were cloned via rapid amplification of the cDNA ends and then expressed in the prokaryotic form to obtain the recombinant proteins, NOS-HIS and NOX-HIS. Through bacterial binding and stimulation experiments, the molecular mechanisms of NOS and NOX in the innate immunity of E. sinensis were explored. Based on the results, NOS and NOX were 5900 bp and 4504 bp long, respectively, and were evolutionarily conserved. Quantitative real-time PCR revealed that NOS and NOX were expressed in all studied tissues, and both were expressed in the highest amounts in hemocytes. NOS-HIS and NOX-HIS could bind to bacteria with different binding powers; their binding ability to gram-positive bacteria was higher than that of binding to gram-negative bacteria. After stimulation with Aeromonas hydrophila, NOS expression was significantly up-regulated at 3, 6, and 48 h, and NOX expression was significantly down-regulated at 3, 12, 24, and 48 h. After bacterial stimulation, the NOS enzyme activity in the serum of E. sinensis was also significantly up-regulated at 6 and 48 h, and the NOX enzyme activity was significantly down-regulated at 12 and 48 h, aligning with the gene expression trend. Moreover, the related free radical molecules, NO, O2-, and H2O2, tended to decrease after bacterial stimulation. Overall, the gene expression and enzyme activity of NOS and NOX had been changed respectively, and the contents of a series of free radical molecules (NO, O2- and H2O2) were induced in E. sinensis after bacterial stimulation, which then exert antibacterial immunity.
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Affiliation(s)
- Linjie Li
- Key Laboratory for Aquatic Germplasm Innovation and Utilization of Jiangxi Province, School of Life Sciences, Nanchang University, Jiangxi 330031, China; Laboratory of Aquatic Animal Healthy Breeding, Chongqing Research Institute of Nanchang University, Chongqing 400037, China
| | - Xiaoyong Li
- Department of Animal Husbandry and Aquatic Technology Extension and Application, Jiangxi Agricultural Technology Extension Center, Jiangxi 330046, China.
| | - Liugen Zeng
- Nanchang Academy of Agricultural Sciences, Jiangxi 330038, China
| | - Ziyu Wang
- Key Laboratory for Aquatic Germplasm Innovation and Utilization of Jiangxi Province, School of Life Sciences, Nanchang University, Jiangxi 330031, China; Laboratory of Aquatic Animal Healthy Breeding, Chongqing Research Institute of Nanchang University, Chongqing 400037, China
| | - Nan Deng
- Key Laboratory for Aquatic Germplasm Innovation and Utilization of Jiangxi Province, School of Life Sciences, Nanchang University, Jiangxi 330031, China; Laboratory of Aquatic Animal Healthy Breeding, Chongqing Research Institute of Nanchang University, Chongqing 400037, China
| | - Peiying Huang
- Key Laboratory for Aquatic Germplasm Innovation and Utilization of Jiangxi Province, School of Life Sciences, Nanchang University, Jiangxi 330031, China; Laboratory of Aquatic Animal Healthy Breeding, Chongqing Research Institute of Nanchang University, Chongqing 400037, China
| | - Jiahao Hou
- Key Laboratory for Aquatic Germplasm Innovation and Utilization of Jiangxi Province, School of Life Sciences, Nanchang University, Jiangxi 330031, China; Laboratory of Aquatic Animal Healthy Breeding, Chongqing Research Institute of Nanchang University, Chongqing 400037, China
| | - Shaoqin Jian
- Key Laboratory for Aquatic Germplasm Innovation and Utilization of Jiangxi Province, School of Life Sciences, Nanchang University, Jiangxi 330031, China; Laboratory of Aquatic Animal Healthy Breeding, Chongqing Research Institute of Nanchang University, Chongqing 400037, China
| | - Daxian Zhao
- Key Laboratory for Aquatic Germplasm Innovation and Utilization of Jiangxi Province, School of Life Sciences, Nanchang University, Jiangxi 330031, China; Laboratory of Aquatic Animal Healthy Breeding, Chongqing Research Institute of Nanchang University, Chongqing 400037, China.
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3
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Liu S, Zhao C, Cao Y, Li Y, Zhang Z, Nie D, Tang W, Li Y. Comparison of Chemical Compositions and Antioxidant Activity of Essential Oils from Litsea Cubeba, Cinnamon, Anise, and Eucalyptus. Molecules 2023; 28:5051. [PMID: 37446712 DOI: 10.3390/molecules28135051] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 07/15/2023] Open
Abstract
The purpose of this study was to compare the antioxidant activity of litsea cubeba oil (LCO), cinnamon oil (CO), anise oil (AO), and eucalyptus oil (EUC) in vitro. The chemical compositions of the essential oils (EOs) were analyzed using gas chromatography-mass spectrometry (GC-MS). The antioxidant activity of the four EOs was evaluated through scavenging DPPH free radicals, chelating Fe2+, scavenging hydroxyl free radicals, and inhibiting yolk lipid peroxidation. The results showed that the major compounds found in LCO, CO, AO, and EUC are citral (64.29%), cinnamaldehyde (84.25%), anethole (78.51%), and 1,8-cineole (81.78%), respectively. The four EOs all had certain antioxidant activity. The ability to scavenge DPPH radical was ranked in the order of LCO > CO > AO > EUC. The hydroxyl radical scavenging ability was ranked in the order of EUC > CO > LCO > AO. The chelating Fe2+ capacity was ranked in the order of EUC > AO > CO > LCO. The yolk lipid peroxidation inhibition ability was ranked in the order of CO > AO > EUC > LCO. In different antioxidant activity assays, the antioxidant activity of the EOs was different. It was speculated that the total antioxidant activity of an EO may be the result of the joint action of different antioxidant capacities.
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Affiliation(s)
- Shutian Liu
- Animal Science and Technology College, Beijing University of Agriculture, No. 7 Beinong Road, Changping, Beijing 102206, China
| | - Chen Zhao
- Animal Science and Technology College, Beijing University of Agriculture, No. 7 Beinong Road, Changping, Beijing 102206, China
| | - Yuwei Cao
- Animal Science and Technology College, Beijing University of Agriculture, No. 7 Beinong Road, Changping, Beijing 102206, China
| | - Yan Li
- Animal Science and Technology College, Beijing University of Agriculture, No. 7 Beinong Road, Changping, Beijing 102206, China
| | - Zhuo Zhang
- Animal Science and Technology College, Beijing University of Agriculture, No. 7 Beinong Road, Changping, Beijing 102206, China
| | - Dechao Nie
- Animal Science and Technology College, Beijing University of Agriculture, No. 7 Beinong Road, Changping, Beijing 102206, China
| | - Weixuan Tang
- Animal Science and Technology College, Beijing University of Agriculture, No. 7 Beinong Road, Changping, Beijing 102206, China
| | - Yanling Li
- Animal Science and Technology College, Beijing University of Agriculture, No. 7 Beinong Road, Changping, Beijing 102206, China
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Abstract
Resistance arteries and arterioles evolved as specialized blood vessels serving two important functions: (a) regulating peripheral vascular resistance and blood pressure and (b) matching oxygen and nutrient delivery to metabolic demands of organs. These functions require control of vessel lumen cross-sectional area (vascular tone) via coordinated vascular cell responses governed by precise spatial-temporal communication between intracellular signaling pathways. Herein, we provide a contemporary overview of the significant roles that redox switches play in calcium signaling for orchestrated endothelial, smooth muscle, and red blood cell control of arterial vascular tone. Three interrelated themes are the focus: (a) smooth muscle to endothelial communication for vasoconstriction, (b) endothelial to smooth muscle cell cross talk for vasodilation, and (c) oxygen and red blood cell interregulation of vascular tone and blood flow. We intend for this thematic framework to highlight gaps in our current knowledge and potentially spark interest for cross-disciplinary studies moving forward.
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Affiliation(s)
- Máté Katona
- Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, Pennsylvania, USA;
| | - Mark T Gladwin
- Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, Pennsylvania, USA;
- Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Current affiliation: University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Adam C Straub
- Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, Pennsylvania, USA;
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Center for Microvascular Research, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
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5
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Puentes-Díaz N, Chaparro D, Morales-Morales D, Flores-Gaspar A, Alí-Torres J. Role of Metal Cations of Copper, Iron, and Aluminum and Multifunctional Ligands in Alzheimer's Disease: Experimental and Computational Insights. ACS OMEGA 2023; 8:4508-4526. [PMID: 36777601 PMCID: PMC9909689 DOI: 10.1021/acsomega.2c06939] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 12/30/2022] [Indexed: 05/15/2023]
Abstract
Alzheimer's disease (AD) is the most common form of dementia, affecting millions of people around the world. Even though the causes of AD are not completely understood due to its multifactorial nature, some neuropathological hallmarks of its development have been related to the high concentration of some metal cations. These roles include the participation of these metal cations in the production of reactive oxygen species, which have been involved in neuronal damage. In order to avoid the increment in the oxidative stress, multifunctional ligands used to coordinate these metal cations have been proposed as a possible treatment to AD. In this review, we present the recent advances in experimental and computational works aiming to understand the role of two redox active and essential transition-metal cations (Cu and Fe) and one nonbiological metal (Al) and the recent proposals on the development of multifunctional ligands to stop or revert the damaging effects promoted by these metal cations.
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Affiliation(s)
- Nicolás Puentes-Díaz
- Departamento
de Química, Universidad Nacional
de Colombia−Sede Bogotá, Bogotá 11301, Colombia
| | - Diego Chaparro
- Departamento
de Química, Universidad Nacional
de Colombia−Sede Bogotá, Bogotá 11301, Colombia
- Departamento
de Química, Universidad Militar Nueva
Granada, Cajicá 250240, Colombia
| | - David Morales-Morales
- Instituto
de Química, Universidad Nacional Autónoma de México,
Circuito Exterior, Ciudad Universitaria, Ciudad de México 04510, México
| | - Areli Flores-Gaspar
- Departamento
de Química, Universidad Militar Nueva
Granada, Cajicá 250240, Colombia
- Areli Flores-Gaspar − Departamento de Química,
Universidad Militar Nueva
Granada, Cajicá, 250247, Colombia.
| | - Jorge Alí-Torres
- Departamento
de Química, Universidad Nacional
de Colombia−Sede Bogotá, Bogotá 11301, Colombia
- Jorge Alí-Torres − Departamento de Química, Universidad Nacional de
Colombia, Sede Bogotá,11301, Bogotá, Colombia.
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6
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Zhuang Y, Qin X, Shi B. Interface hydrogen bonding dominated perfluorooctanoic acid (PFOA) accumulation by iron particles in drinking water pipes. CHEMOSPHERE 2023; 312:137211. [PMID: 36368546 DOI: 10.1016/j.chemosphere.2022.137211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 10/10/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
Iron particle is one of the key factors inducing discoloration in drinking water distribution system (DWDS), but the mechanism of iron particles on the accumulation of trace organic pollutants in DWDS is not clear. Here, iron-based pipes from real DWDS were used to investigate the perfluorooctanoic acid (PFOA) accumulation mechanisms in DWDS. Results showed that old unlined pipes had a much higher accumulation capacity for PFOA than new pipes. Among the corrosion products in old pipes, Fe2O3 and Fe3O4 did not have obvious accumulation for PFOA, while FeOOH exhibited a strong accumulation effect for PFOA. Furthermore, the in-situ formed iron particles contributed more to PFOA accumulation than pre-formed iron particles. Interestingly, PFOA caused an increase in turbidity and particle size of in-situ formed iron particles. Mulliken charge of F-bonded Fe increased from +1.28 e to +1.30 e, which indicated that the oxidation state of Fe-center was strengthened by PFOA. When dissolved oxygen existed, a PFOA-FeOOH-O2 linkage could form through COO-Fe coordination and O2 interface adsorption, which enhanced cytotoxicity due to the generation of •OH radicals. These findings implied that interface hydrogen bonding dominated PFOA accumulation by iron particles in DWDS, which would increase the risks of discoloration.
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Affiliation(s)
- Yuan Zhuang
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Xinyi Qin
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Baoyou Shi
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
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7
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Dimitry MY, Marie Therèse BA, Josiane Edith DM, Emmanuel PA, Armand AB, Nicolas NY. Hypolipidemic and antioxidant effects of vegetal milk produced with Mucuna pruriens L. seed in rats fed a high-fat diet. Heliyon 2022; 8:e11835. [DOI: 10.1016/j.heliyon.2022.e11835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 02/09/2022] [Accepted: 11/15/2022] [Indexed: 11/24/2022] Open
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8
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Gazwi HSS, Mahmoud ME, Toson EMA. Analysis of the phytochemicals of Coriandrum sativum and Cichorium intybus aqueous extracts and their biological effects on broiler chickens. Sci Rep 2022; 12:6399. [PMID: 35430609 PMCID: PMC9013364 DOI: 10.1038/s41598-022-10329-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 04/05/2022] [Indexed: 12/30/2022] Open
Abstract
Spices and herbs can be used as feed additives and viable alternatives to antibiotics in chicken production. This study analyzed the phytochemicals, minerals, and antioxidant activity of aqueous extracts from Coriandrum sativum seeds and Cichorium intybus roots. The effects of different concentrations of C. sativum and C. intybus extracts on blood parameters, growth and carcass traits, biochemical parameters, and antioxidant activity of broiler chicks were also examined. The results showed that C. sativum aqueous extract has relatively higher contents of total flavonoids and total phenolic acids than C. intybus aqueous extract. Both extracts contain elevated mineral elements, especially iron, potassium, and sodium. Therefore, dietary supplementation of C. sativum seed and C. intybus root extracts could enhance broiler chicken growth performance, carcass characteristics, liver function, lipid profile, and antioxidant status. These extracts could be utilized as natural feed additives and growth promoters for broiler chickens.
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Affiliation(s)
- Hanaa S S Gazwi
- Department of Agricultural Chemistry, Faculty of Agriculture, Minia University, El-Minia, Egypt.
| | - Magda E Mahmoud
- Department of Agricultural Chemistry, Faculty of Agriculture, Minia University, El-Minia, Egypt
| | - Enas M A Toson
- Department of Animal and Poultry Production, Faculty of Agriculture, Minia University, El-Minia, Egypt
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9
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Kumar N, Kumar YB, Sarma H, Sastry GN. Fate of Sc-Ion Interaction With Water: A Computational Study to Address Splitting Water Versus Solvating Sc Ion. Front Chem 2021; 9:738852. [PMID: 34733820 PMCID: PMC8558820 DOI: 10.3389/fchem.2021.738852] [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: 07/09/2021] [Accepted: 09/13/2021] [Indexed: 11/29/2022] Open
Abstract
An exhaustive study of Sc-ion interaction with water molecules in all its possible oxidation and spin states has been carried out to delineate the relative propensity of Sc ions toward solvation and water splitting. Potential energy surface analysis of the Sc-ion reaction with water molecules, topological analysis of bonds, and the effect of sequential solvation up to 6 water molecules have been examined. Calculated values showed good agreement with the available experimental results. Close-shell systems such as singlet mono- and tricationic Sc ions prefer to split the water molecules. In contrast, the open-shell systems such as triplet mono- and doublet dicationic Sc ions prefer to get solvated than split the water molecule. Topological analysis of electron density predicted the Sc+/2+–water bond as a noncovalent bond while Sc3+–OH2, Sc2+–OH, and Sc+–H bonds as partially covalent in nature. Energy decomposition analysis revealed that Sc ion–water interactions are driven by electrostatic energy followed by polarization energy. The current study reveals that transition metal catalysis can be one of the most effective tools to employ in water splitting, by properly tuning the electrons, spin, and ligands around the catalytic center.
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Affiliation(s)
- Nandan Kumar
- Centre for Molecular Modelling, CSIR-Indian Institute of Chemical Technology, Hyderabad, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Y Bhargav Kumar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India.,Advanced Computation and Data Sciences Division, CSIR-North East Institute of Science and Technology, Jorhat, India
| | - Himakshi Sarma
- Advanced Computation and Data Sciences Division, CSIR-North East Institute of Science and Technology, Jorhat, India
| | - G Narahari Sastry
- Centre for Molecular Modelling, CSIR-Indian Institute of Chemical Technology, Hyderabad, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India.,Advanced Computation and Data Sciences Division, CSIR-North East Institute of Science and Technology, Jorhat, India
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10
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Ajatta MA, Akinola SA, Osundahunsi OF, Omoba OS. Effect of roasting on the chemical composition, functional characterisation and antioxidant activities of three varieties of marble vine ( Dioclea reflexa): An underutilised plant. Heliyon 2021; 7:e07107. [PMID: 34136686 PMCID: PMC8176299 DOI: 10.1016/j.heliyon.2021.e07107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 10/27/2020] [Accepted: 05/14/2021] [Indexed: 11/17/2022] Open
Abstract
Marble vine (Dioclea reflexa) seeds were roasted using the conditions in runs generated from Response Surface Methodology with temperature ranging from 110 to 200 °C and time (10–40 min). Proximate composition, antioxidant activities (DPPH, ABTS, FRAP, metal chelation OH and Lipid peroxidation) and Fourier Transform Infrared Spectroscopy (FTIR) were carried out on unroasted and roasted flours. Roasting increased the crude fibre content (2.74–5.08 %) of black variety compared to others. However, a slight denaturation of protein was observed when compared to unroasted samples. A significant increase in all the antioxidant activities compared to the control was also observed compared to unroasted flours. The FTIR showed functional groups such as ketones, aldehydes and carbonyl group upon roasting. Roasting temperature at (110 °C) had more effect than roasting time (10, 25 and 40 min). Hence, roasting at 110 °C could enable the release of food nutrients and improve the functionality of marble vine seed flour.
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Affiliation(s)
- Mary A Ajatta
- Department of Food Science and Technology, Bamidele Olumilua University of Education, Science and Technology, Ikere-Ekiti, Ekiti State, Nigeria
| | - Stephen A Akinola
- Department of Microbiology, North-West University Mafikeng Campus, Mmabatho, 2735, South Africa
| | - Oluwatooyin F Osundahunsi
- Department of Food Science and Technology, Federal University of Technology, Akure, Ondo State, 340001, Nigeria
| | - Olufumilayo S Omoba
- Department of Food Science and Technology, Federal University of Technology, Akure, Ondo State, 340001, Nigeria
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11
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do Monte FA, Ahuja N, Awad KR, Pan Z, Young S, Kim HKW, Aswath P, Brotto M, Varanasi VG. Silicon Oxynitrophosphide Nanoscale Coating Enhances Antioxidant Marker-Induced Angiogenesis During in vivo Cranial Bone-Defect Healing. JBMR Plus 2021; 5:e10425. [PMID: 33869985 PMCID: PMC8046063 DOI: 10.1002/jbm4.10425] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 09/18/2020] [Accepted: 10/01/2020] [Indexed: 11/08/2022] Open
Abstract
Critical-sized bone defects are challenging to heal because of the sudden and large volume of lost bone. Fixative plates are often used to stabilize defects, yet oxidative stress and delayed angiogenesis are contributing factors to poor biocompatibility and delayed bone healing. This study tests the angiogenic and antioxidant properties of amorphous silicon oxynitrophosphide (SiONPx) nanoscale-coating material on endothelial cells to regenerate vascular tissue in vitro and in bone defects. in vitro studies evaluate the effect of silicon oxynitride (SiONx) and two different SiONPx compositions on human endothelial cells exposed to ROS (eg, hydrogen peroxide) that simulates oxidative stress conditions. in vivo studies using adult male Sprague Dawley rats (approximately 450 g) were performed to compare a bare plate, a SiONPx-coated implant plate, and a sham control group using a rat standard-sized calvarial defect. Results from this study showed that plates coated with SiONPx significantly reduced cell death, and enhanced vascular tubule formation and matrix deposition by upregulating angiogenic and antioxidant expression (eg, vascular endothelial growth factor A, angiopoetin-1, superoxide dismutase 1, nuclear factor erythroid 2-related factor 2, and catalase 1). Moreover, endothelial cell markers (CD31) showed a significant tubular structure in the SiONPx coating group compared with an empty and uncoated plate group. This reveals that atomic doping of phosphate into the nanoscale coating of SiONx produced markedly elevated levels of antioxidant and angiogenic markers that enhance vascular tissue regeneration. This study found that SiONPx or SiONx nanoscale-coated materials enhance antioxidant expression, angiogenic marker expression, and reduce ROS levels needed for accelerating vascular tissue regeneration. These results further suggest that SiONPx nanoscale coating could be a promising candidate for titanium plate for rapid and enhanced cranial bone-defect healing. © 2020 The Authors. JBMR Plus published by Wiley Periodicals LLC. on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Felipe A do Monte
- Department of BioengineeringUniversity of Texas at ArlingtonArlingtonTXUSA
- Center for Excellence in Hip DisordersTexas Scottish Rite HospitalDallasTXUSA
| | - Neelam Ahuja
- Bone‐Muscle Research CenterUniversity of Texas at ArlingtonArlingtonTXUSA
| | - Kamal R Awad
- Bone‐Muscle Research CenterUniversity of Texas at ArlingtonArlingtonTXUSA
- Department of Materials Science and EngineeringUniversity of Texas at ArlingtonArlingtonTXUSA
| | - Zui Pan
- Bone‐Muscle Research CenterUniversity of Texas at ArlingtonArlingtonTXUSA
| | - Simon Young
- Department of Oral and Maxillofacial SurgeryThe University of Texas Health Science Center at Houston, School of DentistryHoustonTXUSA
| | - Harry KW Kim
- Center for Excellence in Hip DisordersTexas Scottish Rite HospitalDallasTXUSA
- Department of Orthopedic SurgeryUniversity of Texas Southwestern Medical Center at DallasDallasTXUSA
| | - Pranesh Aswath
- Department of Materials Science and EngineeringUniversity of Texas at ArlingtonArlingtonTXUSA
| | - Marco Brotto
- Bone‐Muscle Research CenterUniversity of Texas at ArlingtonArlingtonTXUSA
| | - Venu G Varanasi
- Bone‐Muscle Research CenterUniversity of Texas at ArlingtonArlingtonTXUSA
- Department of Materials Science and EngineeringUniversity of Texas at ArlingtonArlingtonTXUSA
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12
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Maaskant RV, Chordia S, Roelfes G. Merging Whole‐cell Biosynthesis of Styrene and Transition‐metal Catalyzed Derivatization Reactions. ChemCatChem 2021. [DOI: 10.1002/cctc.202001896] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ruben V. Maaskant
- Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Shreyans Chordia
- Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Gerard Roelfes
- Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
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13
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Al‐Nu'airat J, Oluwoye I, Zeinali N, Altarawneh M, Dlugogorski BZ. Review of Chemical Reactivity of Singlet Oxygen with Organic Fuels and Contaminants. CHEM REC 2020; 21:315-342. [DOI: 10.1002/tcr.202000143] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 11/26/2020] [Indexed: 01/03/2023]
Affiliation(s)
- Jomana Al‐Nu'airat
- Murdoch University Discipline of Chemistry and Physics, College of Science, Health, Engineering and Education 90 South Street Murdoch WA 6150 Australia
| | - Ibukun Oluwoye
- Murdoch University Discipline of Chemistry and Physics, College of Science, Health, Engineering and Education 90 South Street Murdoch WA 6150 Australia
| | - Nassim Zeinali
- Murdoch University Discipline of Chemistry and Physics, College of Science, Health, Engineering and Education 90 South Street Murdoch WA 6150 Australia
| | - Mohammednoor Altarawneh
- United Arab Emirates University Chemical and Petroleum Engineering Department Sheikh Khalifa bin Zayed St Al-Ain 15551 United Arab Emirates
| | - Bogdan Z. Dlugogorski
- Charles Darwin University Energy and Resources Institute, Ellengowan Drive Darwin NT 0909 Australia
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Ivanova A, Gerasimova E, Gazizullina E. Study of Antioxidant Properties of Agents from the Perspective of Their Action Mechanisms. Molecules 2020; 25:E4251. [PMID: 32947948 PMCID: PMC7570667 DOI: 10.3390/molecules25184251] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/13/2020] [Accepted: 09/15/2020] [Indexed: 11/16/2022] Open
Abstract
The creation and analysis of a large variety of existing methods for the evaluation of integrated antioxidant properties are quite relevant in connection with a range of biological mechanisms of the antioxidants (AO) action. In this work, the existing methods are correlated with mechanisms of antioxidant action. It is shown that the results obtained by various methods are mainly incomparable. This can be connected with the implementation of various mechanisms of antioxidant action in methods. The analysis of the literature data presented in this review indicates the difficulty of creating a universal method and the feasibility of using integrated approaches based on the use of several methods that implement and combine various mechanisms of the chemical conversion of antioxidants. This review describes methods for studying the chelating ability of antioxidants, except for methods based on electron and hydrogen atom transfer reactions, which are currently not widely covered in modern literature. With the description of each mechanism, special attention is paid to electrochemical methods, as the interaction of active oxygen metabolites of radical and non-radical nature with antioxidants has an electron/proton/donor-acceptor nature, which corresponds to the nature of electrochemical methods and suggests that they can be used to study the interaction.
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Affiliation(s)
- Alla Ivanova
- Chemical Technological Institute, Ural Federal University Named after the First President of Russia B. N. Yeltsin, 620002 Ekaterinburg, Russia; (E.G.); (E.G.)
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15
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Chemical profiling, cytotoxicity study and assessment of antioxidant potential of hydro-ethanol extract of peels of some selected varieties of potato in various in vitro models and in lipid substrate enriched with omega-3 fatty acids. Eur Food Res Technol 2020. [DOI: 10.1007/s00217-020-03504-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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16
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Wu S, Zhou R, Chen H, Zhang J, Wu P. Highly efficient oxygen photosensitization of carbon dots: the role of nitrogen doping. NANOSCALE 2020; 12:5543-5553. [PMID: 32091517 DOI: 10.1039/c9nr10986b] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The role of nitrogen doping in the highly efficient oxygen photosensitization of carbon dots is underlined.
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Affiliation(s)
- Shihong Wu
- State Key Laboratory of Hydraulics and Mountain River Engineering
- Sichuan University
- Chengdu 610065
- China
- Analytical & Testing Center
| | - Ronghui Zhou
- State Key Laboratory of Oral Diseases
- West China Hospital of Stomatology
- Sichuan University
- Chengdu 610041
- China
| | - Hanjiao Chen
- Analytical & Testing Center
- Sichuan University
- Chengdu 610064
- China
| | - Jinyi Zhang
- Analytical & Testing Center
- Sichuan University
- Chengdu 610064
- China
| | - Peng Wu
- State Key Laboratory of Hydraulics and Mountain River Engineering
- Sichuan University
- Chengdu 610065
- China
- Analytical & Testing Center
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17
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Ghosh MK, Chakraborty D, Sarkar S, Bhowmik A, Basu M. The interrelationship between cerebral ischemic stroke and glioma: a comprehensive study of recent reports. Signal Transduct Target Ther 2019; 4:42. [PMID: 31637020 PMCID: PMC6799849 DOI: 10.1038/s41392-019-0075-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 08/26/2019] [Accepted: 08/29/2019] [Indexed: 12/16/2022] Open
Abstract
Glioma and cerebral ischemic stroke are two major events that lead to patient death worldwide. Although these conditions have different physiological incidences, ~10% of ischemic stroke patients develop cerebral cancer, especially glioma, in the postischemic stages. Additionally, the high proliferation, venous thrombosis and hypercoagulability of the glioma mass increase the significant risk of thromboembolism, including ischemic stroke. Surprisingly, these events share several common pathways, viz. hypoxia, cerebral inflammation, angiogenesis, etc., but the proper mechanism behind this co-occurrence has yet to be discovered. The hypercoagulability and presence of the D-dimer level in stroke are different in cancer patients than in the noncancerous population. Other factors such as atherosclerosis and coagulopathy involved in the pathogenesis of stroke are partially responsible for cancer, and the reverse is also partially true. Based on clinical and neurosurgical experience, the neuronal structures and functions in the brain and spine are observed to change after a progressive attack of ischemia that leads to hypoxia and atrophy. The major population of cancer cells cannot survive in an adverse ischemic environment that excludes cancer stem cells (CSCs). Cancer cells in stroke patients have already metastasized, but early-stage cancer patients also suffer stroke for multiple reasons. Therefore, stroke is an early manifestation of cancer. Stroke and cancer share many factors that result in an increased risk of stroke in cancer patients, and vice-versa. The intricate mechanisms for stroke with and without cancer are different. This review summarizes the current clinical reports, pathophysiology, probable causes of co-occurrence, prognoses, and treatment possibilities.
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Affiliation(s)
- Mrinal K. Ghosh
- Signal Transduction in Cancer and Stem Cells Laboratory, Division of Cancer Biology and Inflammatory Disorder, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology (CSIR-IICB), 4 Raja S.C. Mullick Road, Kolkata 700032 and CN-06, Sector-V, Salt Lake, Kolkata, 700091 India
| | - Dipankar Chakraborty
- Signal Transduction in Cancer and Stem Cells Laboratory, Division of Cancer Biology and Inflammatory Disorder, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology (CSIR-IICB), 4 Raja S.C. Mullick Road, Kolkata 700032 and CN-06, Sector-V, Salt Lake, Kolkata, 700091 India
| | - Sibani Sarkar
- Signal Transduction in Cancer and Stem Cells Laboratory, Division of Cancer Biology and Inflammatory Disorder, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology (CSIR-IICB), 4 Raja S.C. Mullick Road, Kolkata 700032 and CN-06, Sector-V, Salt Lake, Kolkata, 700091 India
| | - Arijit Bhowmik
- Department of Cancer Chemoprevention, Chittaranjan National Cancer Institute, 37 S. P. Mukherjee Road, Kolkata, 700 026 India
| | - Malini Basu
- Department of Microbiology, Dhruba Chand Halder College, Dakshin Barasat, South 24, Paraganas, 743372 India
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Rani R, Sharma D, Chaturvedi M, Yadav JP. Total Phenolic Content and In vitro Antioxidant Activity of Endophytic Fungi Isolated from Calotropis procera L. ACTA ACUST UNITED AC 2019. [DOI: 10.2174/1573407214666180312143655] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Background:
Endophytic fungi are microorganisms that colonize inside the plant tissues
without causing any disease symptoms. Endophytic fungi isolated from medicinal plants have emerged
as an interesting source for the isolation of bioactive compounds. In this study, we selected Calotropis
procera, a member of the Asclepiadaceae family commonly called ‘Aak’ to evaluate the antioxidant
potential of isolated endophytic fungi.
</P><P>
Objective: The aim of this study was to assess the total phenolic content (TPC), antioxidant capacity by
using different assay and phytochemical screening of endophytic fungi isolated from Calotropis procera
(leaves, stem and root).
</P><P>
Method: Crude ethyl acetate extracts of 20 different endophytic fungi isolated from Calotropis procera
were tested for their preliminary phytoconstituents presence, TPC estimation (by Folin–Ciocalteu colorimetric
assay) and antioxidant potential [1, 1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging
assay, hydrogen peroxide (H2O2) free radical scavenging assay, β-carotene-linoleic free radical
scavenging assay, metal chelating assay and xanthine oxidase inhibitory assay].
Results:
Phenols, carbohydrates, saponins, tannins, alkaloids and flavanoids were the main phytoconstituents
present in the endophytic fungi. Among the endophytes, Aspergillus nomius showed the highest
TPC [72.71±1.67 µg GAE (gallic acid equivalent) /mg dry weight of fungi] and antioxidant activity
for DPPH free radical scavenging assay (68.86±0.19%). A high positive linear correlation was found
between TPC and xanthine oxidase inhibitory assay (R2-0.890) and between TPC and DPPH free radical
scavenging assay (R2-0.839). Aspergillus and Fusarium genus species showed significant antioxidant
activity by the different assay.
Conclusion:
The present study revealed some endophytic fungi from Calotropis procera could be a
potential source of novel natural antioxidant compounds.
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Affiliation(s)
- Reena Rani
- Department of Genetics, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Dushyant Sharma
- Department of Genetics, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Monika Chaturvedi
- Department of Genetics, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Jaya Parkash Yadav
- Department of Genetics, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
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19
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Kimura T, Kimura AK, Ren M, Berno B, Xu Y, Schlame M, Epand RM. Substantial Decrease in Plasmalogen in the Heart Associated with Tafazzin Deficiency. Biochemistry 2018; 57:2162-2175. [PMID: 29557170 PMCID: PMC5893435 DOI: 10.1021/acs.biochem.8b00042] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Tafazzin is the mitochondrial enzyme that catalyzes transacylation between a phospholipid and a lysophospholipid in remodeling. Mutations in tafazzin cause Barth syndrome, a potentially life-threatening disease with the major symptom being cardiomyopathy. In the tafazzin-deficient heart, cardiolipin (CL) acyl chains become abnormally heterogeneous unlike those in the normal heart with a single dominant linoleoyl species, tetralinoleoyl CL. In addition, the amount of CL decreases and monolysocardiolipin (MLCL) accumulates. Here we determine using high-resolution 31P nuclear magnetic resonance with cryoprobe technology the fundamental phospholipid composition, including the major but oxidation-labile plasmalogens, in the tafazzin-knockdown (TAZ-KD) mouse heart as a model of Barth syndrome. In addition to confirming a lower level of CL (6.4 ± 0.1 → 2.0 ± 0.4 mol % of the total phospholipid) and accumulation of MLCL (not detected → 3.3 ± 0.5 mol %) in the TAZ-KD, we found a substantial reduction in the level of plasmenylcholine (30.8 ± 2.8 → 18.1 ± 3.1 mol %), the most abundant phospholipid in the control wild type. A quantitative Western blot revealed that while the level of peroxisomes, where early steps of plasmalogen synthesis take place, was normal in the TAZ-KD model, expression of Far1 as a rate-determining enzyme in plasmalogen synthesis was dramatically upregulated by 8.3 (±1.6)-fold to accelerate the synthesis in response to the reduced level of plasmalogen. We confirmed lyso-plasmenylcholine or plasmenylcholine is a substrate of purified tafazzin for transacylation with CL or MLCL, respectively. Our results suggest that plasmenylcholine, abundant in linoleoyl species, is important in remodeling CL in the heart. Tafazzin deficiency thus has a major impact on the cardiac plasmenylcholine level and thereby its functions.
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Affiliation(s)
- Tomohiro Kimura
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON L8S 4K1, Canada
| | - Atsuko K. Kimura
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON L8S 4K1, Canada
| | - Mindong Ren
- Department of Cell Biology, NYU Langone Medical Center, New York, NY 10016
| | - Bob Berno
- Department of Chemistry, McMaster University, Hamilton, ON L8S 4K1, Canada
| | - Yang Xu
- Department of Anesthesiology, NYU Langone Medical Center, New York, NY 10016
| | - Michael Schlame
- Department of Cell Biology, NYU Langone Medical Center, New York, NY 10016
- Department of Anesthesiology, NYU Langone Medical Center, New York, NY 10016
| | - Richard M. Epand
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON L8S 4K1, Canada
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20
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Osman HG, El-Refaey AAA, Aziz AAFA, El-Sokkary AM, El-Saeed RA. Leptin and Antioxidant Profile in Infertile Women with Endometriosis. ACTA ACUST UNITED AC 2018. [DOI: 10.1177/228402651000200304] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Objective To investigate the role of leptin hormone and oxidative stress in the pathogenesis of endometriosis among infertile women. Methods Blood samples and peritoneal fluid were collected from women undergoing laparoscopy. The study group included 24 infertile women with endometriosis, while 14 women with unexplained infertility represented the control group. Leptin hormone levels and three markers of antioxidants, including total antioxidant capacity (TAC), catalase (CAT) enzyme and superoxide dismutase (SOD) enzyme were estimated. Results Peritoneal fluid leptin concentrations were significantly higher in infertile endometriotic women compared with the control group. The levels of TAC, CAT and SOD were significantly lower in both serum and peritoneal fluid of infertile endometriotic women compared with controls. There was no significant difference in serum leptin concentrations between the studied groups. Conclusions Peritoneal leptin and oxidative stress may be an active factor in the pathogenesis and/or progression of endometriosis.
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Affiliation(s)
- Hussein G. Osman
- Biochemistry Division, Department of
Chemistry, Faculty of Science, Mansoura University, Mansoura - Egypt
| | - Abdel Aziz A. El-Refaey
- Department of Obstetrics and
Gynecology, Faculty of Medicine, Mansoura University, Mansoura - Egypt
| | - Abdel Aziz F. Abdel Aziz
- Biochemistry Division, Department of
Chemistry, Faculty of Science, Mansoura University, Mansoura - Egypt
| | - Ahmed M.A. El-Sokkary
- Biochemistry Division, Department of
Chemistry, Faculty of Science, Mansoura University, Mansoura - Egypt
| | - Rasha A. El-Saeed
- Biochemistry Division, Department of
Chemistry, Faculty of Science, Mansoura University, Mansoura - Egypt
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Lousse JC, Defrère S, Ramos RG, Van Langendonckt A, Colette S, Donnez J. Involvement of Iron, Nuclear Factor-Kappa B (NF-κB) and Prostaglandins in the Pathogenesis of Peritoneal Endometriosis-Associated Inflammation: A Review. ACTA ACUST UNITED AC 2018. [DOI: 10.1177/228402650900100104] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Peritoneal endometriosis is a chronic pelvic inflammatory disease, characterized by increased numbers of peritoneal macrophages and their secreted products such as cytokines, growth and angiogenic factors in peritoneal fluid. Inflammation plays a major role in pain and infertility associated with endometriosis, but is also extensively involved in the molecular and cellular processes that lead to peritoneal endometriotic lesion development. Several inflammatory mediators have therefore been studied in the context of endometriosis over the last few years. The aim of this review is to focus on three that have been clearly implicated in the pathogenesis of endometriosis and may be linked: peritoneal iron metabolism, nuclear factor-kappa B (NF-κB) activation, and prostaglandin biosynthesis. Peritoneal iron overload has been conclusively demonstrated in endometriosis patients and may induce oxidative stress in the peritoneal cavity. Oxidative stress and proinflammatory cytokines are well known to be potent activators of the NF-κB pathway, which has recently been implicated in peritoneal endometriosis. Induced NF-κB activation leads to expression of numerous proinflammatory genes such as cytokines, which may provide positive feedback to the pathway, self-perpetuating the inflammatory response. Other important NF-κB-regulated molecules are prostaglandin biosynthesis enzymes, and cyclooxygenase-2 (COX-2) in particular. Increased concentrations of prostaglandins have been evidenced in the peritoneal fluid of endometriosis patients and COX-2 inhibitors have proved to be effective in ‘in vitro’ and ‘in vivo’ experimental models. In the light of available data collected from patient biopsies, as well as ‘in vitro’ and ‘in vivo’ studies, the respective implication and potential molecular association of iron, NF-κB and prostaglandins in the pathogenesis of endometriosis are discussed. The key role of peritoneal macrophages is emphasized and potential therapeutic targets are examined.
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Affiliation(s)
| | - Sylvie Defrère
- Department of Gynecology, Université Catholique de Louvain, 1200 Brussels - Belgium
| | | | | | - Sébastien Colette
- Department of Gynecology, Université Catholique de Louvain, 1200 Brussels - Belgium
| | - Jacques Donnez
- Department of Gynecology, Université Catholique de Louvain, 1200 Brussels - Belgium
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Affiliation(s)
- Khokan Choudhuri
- School of Chemical Sciences; National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur; Via Jatni District Khurda, Odisha 752050 India
| | - Tapas Kumar Achar
- School of Chemical Sciences; National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur; Via Jatni District Khurda, Odisha 752050 India
| | - Prasenjit Mal
- School of Chemical Sciences; National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur; Via Jatni District Khurda, Odisha 752050 India
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23
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Antioxidant and Antiradical Properties of Selected Flavonoids and Phenolic Compounds. Biochem Res Int 2017; 2017:7616791. [PMID: 29158919 PMCID: PMC5660747 DOI: 10.1155/2017/7616791] [Citation(s) in RCA: 126] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 09/07/2017] [Indexed: 01/31/2023] Open
Abstract
Phenolic compounds and flavonoids are known by their antioxidant properties and one of the most important sources for humans is the diet. Due to the harmful effects of synthetic antioxidants such as BHA and BHT, natural novel antioxidants have become the focus of attention for protecting foods and beverages and reducing oxidative stress in vivo. In the current study, we investigated the total antioxidant, metal chelating, Fe3+ and Cu2+ reduction, and free radical scavenging activities of some phenolic and flavonoid compounds including malvin, oenin, ID-8, silychristin, callistephin, pelargonin, 3,4-dihydroxy-5-methoxybenzoic acid, 2,4,6-trihydroxybenzaldehyde, and arachidonoyl dopamine. The antioxidant properties of these compounds at different concentrations (10–30 μg/mL) were compared with those of reference antioxidants such as BHA, BHT, α-tocopherol, and trolox. Each substance showed dose-dependent antioxidant activity. Furthermore, oenin, malvin, arachidonoyl dopamine, callistephin, silychristin, and 3,4-dihydroxy-5-methoxybenzoic acid exhibited more effective antioxidant activity than that observed for the reference antioxidants. These results suggest that these novel compounds may function to protect foods and medicines and to reduce oxidative stress in vivo.
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24
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Cherrak SA, Mokhtari-Soulimane N, Berroukeche F, Bensenane B, Cherbonnel A, Merzouk H, Elhabiri M. In Vitro Antioxidant versus Metal Ion Chelating Properties of Flavonoids: A Structure-Activity Investigation. PLoS One 2016; 11:e0165575. [PMID: 27788249 PMCID: PMC5082868 DOI: 10.1371/journal.pone.0165575] [Citation(s) in RCA: 141] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 10/13/2016] [Indexed: 01/24/2023] Open
Abstract
Natural flavonoids such as quercetin, (+)catechin and rutin as well as four methoxylated derivatives of quercetin used as models were investigated to elucidate their impact on the oxidant and antioxidant status of human red blood cells (RBCs). The impact of these compounds against metal toxicity was studied as well as their antiradical activities with DPPH assay. Antihemolytic experiments were conducted on quercetin, (+)catechin and rutin with excess of Fe, Cu and Zn (400 μM), and the oxidant (malondialdehyde, carbonyl proteins) and antioxidant (reduced glutathione, catalase activity) markers were evaluated. The results showed that Fe and Zn have the highest prooxidant effect (37 and 33% of hemolysis, respectively). Quercetin, rutin and (+)catechin exhibited strong antioxidant properties toward Fe, but this effect was decreased with respect to Zn ions. However, the Cu showed a weak antioxidant effect at the highest flavonoid concentration (200 μM), while a prooxidant effect was observed at the lowest flavonoid concentration (100 μM). These results are in agreement with the physico-chemical and antiradical data which demonstrated that binding of the metal ions (for FeNTA: (+)Catechin, KLFeNTA = 1.6(1) × 106 M-1 > Rutin, KLFeNTA = 2.0(9) × 105 M-1 > Quercetin, KLFeNTA = 1.0(7) × 105 M-1 > Q35OH, KLFeNTA = 6.3(8.7) × 104 M-1 > Quercetin3’4’OH and Quercetin 3OH, KLFeNTA ~ 2 × 104 M-1) reflects the (anti)oxidant status of the RBCs. This study reveals that flavonoids have both prooxidant and antioxidant activity depending on the nature and concentration of the flavonoids and metal ions.
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Affiliation(s)
- Sabri Ahmed Cherrak
- Laboratory of Physiology, Pathophysiology and Biochemistry of Nutrition, Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, Abou Bekr Belkaid University, 13000 Tlemcen, Algeria
| | - Nassima Mokhtari-Soulimane
- Laboratory of Physiology, Pathophysiology and Biochemistry of Nutrition, Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, Abou Bekr Belkaid University, 13000 Tlemcen, Algeria
- * E-mail: (NMS); (ME)
| | - Farid Berroukeche
- Laboratory of Physiology, Pathophysiology and Biochemistry of Nutrition, Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, Abou Bekr Belkaid University, 13000 Tlemcen, Algeria
| | - Bachir Bensenane
- Laboratory of Physiology, Pathophysiology and Biochemistry of Nutrition, Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, Abou Bekr Belkaid University, 13000 Tlemcen, Algeria
| | - Angéline Cherbonnel
- Laboratory of Bioorganic and Medicinal Chemistry, UMR 7509 CNRS, ECPM, 25 rue Becquerel, 67200 Strasbourg, France
| | - Hafida Merzouk
- Laboratory of Physiology, Pathophysiology and Biochemistry of Nutrition, Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, Abou Bekr Belkaid University, 13000 Tlemcen, Algeria
| | - Mourad Elhabiri
- Laboratory of Bioorganic and Medicinal Chemistry, UMR 7509 CNRS, ECPM, 25 rue Becquerel, 67200 Strasbourg, France
- * E-mail: (NMS); (ME)
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Reactive oxygen species in organ-specific autoimmunity. AUTOIMMUNITY HIGHLIGHTS 2016; 7:11. [PMID: 27491295 PMCID: PMC4974204 DOI: 10.1007/s13317-016-0083-0] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 07/26/2016] [Indexed: 02/07/2023]
Abstract
Reactive oxygen species (ROS) have been extensively studied in the induction of inflammation and tissue damage, especially as it relates to aging. In more recent years, ROS have been implicated in the pathogenesis of autoimmune diseases. Here, ROS accumulation leads to apoptosis and autoantigen structural changes that result in novel specificities. ROS have been implicated not only in the initiation of the autoimmune response but also in its amplification and spreading to novel epitopes, through the unmasking of cryptic determinants. This review will examine the contribution of ROS to the pathogenesis of four organ specific autoimmune diseases (Hashimoto thyroiditis, inflammatory bowel disease, multiple sclerosis, and vitiligo), and compare it to that of a better characterized systemic autoimmune disease (rheumatoid arthritis). It will also discuss tobacco smoking as an environmental factor endowed with both pro-oxidant and anti-oxidant properties, thus capable of differentially modulating the autoimmune response.
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26
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Qian L, Zhang Y, Liu F. Purification and characterization of a ∼43 kDa antioxidant protein with antitumor activity from Pholiota nameko. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2016; 96:1044-1052. [PMID: 25827476 DOI: 10.1002/jsfa.7194] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 01/24/2015] [Accepted: 03/28/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND Pholiota nameko water-soluble protein (PNWSP), isolated from the dried fruiting bodies of Pholiota nameko, was purified by a successive chromatographic process using Q anion exchange column, SP cation exchange column and Superdex 200 gel filtration column. PNWSP was assessed for antioxidant activities in different assay systems, and the effect on cell proliferation of human breast cancer MCF7 cells was investigated. RESULTS Sodium dodecyl sulfate-polyacrylamide gel electrophoresis and analytical ultracentrifugation analysis revealed the homogeneity of PNWSP with apparent molecular weight of ∼43 kDa, and the identification was confirmed by peptide mass fingerprint analysis. It showed potential antioxidant activities in scavenging free radicals, reducing power and chelating effect on Fe(2+), and had a protective effect against DNA amage. Moreover, it inhibited the proliferation of MCF7 cells by inducing apoptosis, in which the change in cell cycle distribution and the loss of mitochondrial transmembrane potential were observed by flow cytometry. CONCLUSIONS The results showed that PNWSP could be a natural antioxidant and developed as a potential chemotherapeutic agent candidate against human breast cancer.
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Affiliation(s)
- Lei Qian
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Yeni Zhang
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, Nankai University, Tianjin 300071, China
| | - Fang Liu
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, Nankai University, Tianjin 300071, China
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27
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Sharma A, Goyal R, Sharma L. Potential biological efficacy of Pinus plant species against oxidative, inflammatory and microbial disorders. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 16:35. [PMID: 26822870 PMCID: PMC4730770 DOI: 10.1186/s12906-016-1011-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Accepted: 01/22/2016] [Indexed: 11/20/2022]
Abstract
Background Traditionally, Pine has been used to treat oxidative and inflammatory disorders. The study was aimed to investigate biological potential of phytoconstituents of Pinus plant species: Pinus roxburghii, Pinus wallichiana and Pinus gerardiana using in-vitro antioxidant, anti-inflammatory and antimicrobial methods. Method The hydro-alcoholic extraction of dried plant: stem bark was done and the antioxidant activity was evaluated using free radical scavenging methods for 1,1-diphenyl-2-picrylhydrazyl, (DPPH), nitric oxide and hydrogen peroxide radicals, reducing power assays, and total antioxidant capacity. Anti-inflammatory activity was carried out using albumin denaturation and HRBC membrane stabilization assays. Antimicrobial and antifungal activities were also conducted using agar well diffusion method. Results The qualitative phytochemical analysis of hydro-alcoholic stem bark extracts of three plant species revealed the presence of various biochemical compounds such as alkaloids, flavonoids, glycosides, triterpenoids and saponins. Quantitative phytochemical analysis of plant extracts showed the presence of phenolics, flavonoids, tannins, beta-carotene and lycopene. Plant extracts of three pinus species showed significant antioxidant activity against DPPH, nitric oxide and H2O2 radicals. In in-vitro anti‐inflammatory investigation, Pinus roxburghii exhibited highest protection against albumin denaturation 86.54 ± 1.85 whereas Pinus gerardiana showed 82.03 ± 2.67. Moreover, plant extracts were found to prevent the growth of microorganisms Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus and Candida albicans showing promising antibacterial and antifungal activities againstCandida albicans. Conclusion The findings of the present study derived the rational for the therapeutic usage of Pinus which is a highly timber yielding plant from Himalayan region, against oxidative, inflammatory and microbial diseases.
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Sultan S, Kumar M, Devari S, Mukherjee D, Ali Shah B. Copper-Manganese Spinel Oxide Catalyzed Synthesis of Amides and Azobenzenes via Aminyl Radical Cations. ChemCatChem 2016. [DOI: 10.1002/cctc.201501218] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Shaista Sultan
- Natural Product Microbes and ACSIR; CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu India
| | - Manjeet Kumar
- Natural Product Microbes and ACSIR; CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu India
| | - Shekaraiah Devari
- Natural Product Microbes and ACSIR; CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu India
| | - Debaraj Mukherjee
- Natural Product Microbes and ACSIR; CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu India
| | - Bhahwal Ali Shah
- Natural Product Microbes and ACSIR; CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu India
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Mengome LE, Voxeur A, Akue JP, Lerouge P. Screening of antioxidant activities of polysaccharides extracts from endemic plants in Gabon. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.bcdf.2014.02.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Pirdel L, Pirdel M. Role of iron overload-induced macrophage apoptosis in the pathogenesis of peritoneal endometriosis. Reproduction 2014; 147:R199-207. [PMID: 24599836 DOI: 10.1530/rep-13-0552] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
This article presents an overview of the involvement of iron overload-induced nitric oxide (NO) overproduction in apoptosis of peritoneal macrophages of women with endometriosis. We have postulated that the peritoneal iron overload originated from retrograde menstruation or bleeding lesions in the ectopic endometrium, which may contribute to the development of endometriosis by a wide range of mechanisms, including oxidative damage and chronic inflammation. Excessive NO production may also be associated with impaired clearance of endometrial cells by macrophages, which promotes cell growth in the peritoneal cavity. Therefore, further research of the mechanisms and consequences of macrophage apoptosis in endometriosis helps discover novel therapeutic strategies that are designed to prevent progression of endometriosis.
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Affiliation(s)
- Leila Pirdel
- Department of ImmunologyFaculty of Medicine, Islamic Azad University, Ardabil Branch, Ardabil 5615731567, IranDepartment of MidwiferyIslamic Azad University, Astara Branch, Astara, Iran
| | - Manijeh Pirdel
- Department of ImmunologyFaculty of Medicine, Islamic Azad University, Ardabil Branch, Ardabil 5615731567, IranDepartment of MidwiferyIslamic Azad University, Astara Branch, Astara, Iran
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Sowndhararajan K, Kang SC. Free radical scavenging activity from different extracts of leaves of Bauhinia vahlii Wight & Arn. Saudi J Biol Sci 2013; 20:319-25. [PMID: 24235867 DOI: 10.1016/j.sjbs.2012.12.005] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 12/29/2012] [Accepted: 12/30/2012] [Indexed: 12/29/2022] Open
Abstract
The objectives of this study were to determine phenolic content and antioxidant activities of chloroform, acetone, methanol and hot water extracts of Bauhinia vahlii leaves. The hot water extract afforded the highest yield (6.3%) while the lowest yield was obtained from the chloroform extract (2.1%). The methanol extract contains higher levels of total phenolics (48.7 ± 0.7 g GAE/100 g extract), tannins (21.7 ± 0.7 g GAE/100 g extract) and flavonoids (10.3 ± 0.2 RE/100 g extract). The extracts were subjected to assess their antioxidant potential using various in vitro systems such as DPPH(•), ABTS(•+), FRAP, OH(•), β-carotene linoleic acid bleaching system, phosphomolybdenum reduction and Fe(2+) chelation. It is concluded that the methanolic extract of B. vahlii leaves have strong antioxidant potential. Further study is necessary for isolation and characterization of the active antioxidants, which may serve as a potential source of natural antioxidants.
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Ai Z, Gao Z, Zhang L, He W, Yin JJ. Core-shell structure dependent reactivity of Fe@Fe₂O₃ nanowires on aerobic degradation of 4-chlorophenol. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:5344-5352. [PMID: 23618059 DOI: 10.1021/es4005202] [Citation(s) in RCA: 163] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In this study, core-shell Fe@Fe₂O₃ nanowires with different iron oxide shell thickness were synthesized through tuning water-aging time after the reduction of ferric ions with sodium borohydride without any stirring. We found that these Fe@Fe₂O₃ nanowires exhibited interesting core-shell structure dependent reactivity on the aerobic degradation of 4-chlorophenol. Characterization results revealed that the core-shell structure dependent aerobic oxidative reactivity of Fe@Fe₂O₃ nanowires was arisen from the combined effects of incrassated iron oxide shell and more surface bound ferrous ions on amorphous iron oxide shell formed during the water-aging process. The incrassated iron oxide shell would gradually block the outward electron transfer from iron core for the subsequent two-electron molecular oxygen activation, but more surface bound ferrous ions on iron oxide shell with prolonging aging time could favor the single-electron molecular oxygen activation, which was confirmed by electron spin resonance spectroscopy with spin trap technique. The mineralization of 4-chlorophenol was monitored by total organic carbon measurement and the oxidative degradation intermediates were analyzed by gas chromatography-mass spectrometry. This study provides new physical insight on the molecular oxygen activation mechanism of nanoscale zerovalent iron and its application on aerobic pollutant removal.
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Affiliation(s)
- Zhihui Ai
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China
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Sathya A, Siddhuraju P. Effect of Indigenous Processing Methods on Phenolics and Antioxidant Potential of Underutilized Legumes Acacia auriculiformis
and Parkia roxburghii. J FOOD QUALITY 2013. [DOI: 10.1111/jfq.12024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Arumugam Sathya
- Bioresource Technology Lab; Department of Environmental Sciences; Bharathiar University; Coimbatore TN 641046 India
| | - Perumal Siddhuraju
- Bioresource Technology Lab; Department of Environmental Sciences; Bharathiar University; Coimbatore TN 641046 India
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Choi JS, Kim HY. Nutritional Treatment: New Strategy for Management of Chronic Pelvic Pain. KOSIN MEDICAL JOURNAL 2013. [DOI: 10.7180/kmj.2013.28.1.7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Jong Soon Choi
- Department of Family Medicine, College of Medicine, Kosin University, Busan, Korea
| | - Heung Yeol Kim
- Department of Obstetrics and Gynecology, College of Medicine, Kosin University, Busan, Korea
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Zhou H, Chen X, Wang C, Ye J, Chen H. Purification and characterization of a novel ~18 kDa antioxidant protein from Ginkgo biloba seeds. Molecules 2012; 17:14778-94. [PMID: 23519252 PMCID: PMC6268451 DOI: 10.3390/molecules171214778] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Revised: 11/30/2012] [Accepted: 12/07/2012] [Indexed: 01/09/2023] Open
Abstract
Ginkgo biloba seeds are widely used as a food and traditional medicine in China. In the present study, a novel antioxidant protein named GBSP was purified from Ginkgo biloba seeds. The protein (GBSP) was purified by homogenization of Ginkgo biloba seed powder in saline solution, 70% ammonium sulphate precipitation, filtration on a DEAE-Cellulose52 anion exchange column, gel filtration on a Sephadex G-50 column, and preparative chromatography on a C18 column using RP-HPLC. GBSP showed an apparent molecular weight of 18 kDa by SDS-PAGE and MALDI-TOF/MS analyses. The amino acid sequence obtained by MALDI-TOF/TOF MS analysis showed GBSP was a novel protein, as no matching protein in was found the database. The protein exhibited significant antioxidant activities against free radicals such as DPPH, ABTS and superoxide anion and showed higher activity than α-tocopherol in a linoleic acid emulsion assay system. Furthermore, GBSP exhibited notable reducing power and a strong chelating effect on Cu2+ and Fe2+. Therefore, the present study demonstrates, for the first time, that this novel protein from Ginkgo biloba seeds is an excellent antioxidant.
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Affiliation(s)
- Hao Zhou
- Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, Jiangsu, China
- National Engineering Lab for Biomass Chemical Utilization, Nanjing 210042, Jiangsu, China
- Key and Open Lab on Forest Chemical Engineering, SFA, Nanjing 210042, Jiangsu, China
- Key Lab of Biomass Energy and Material, Nanjing 210042, Jiangsu, China
- Institute of New Technology of Forestry, CAF, Beijing 100091, China
| | - Xijuan Chen
- Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, Jiangsu, China
- National Engineering Lab for Biomass Chemical Utilization, Nanjing 210042, Jiangsu, China
- Key and Open Lab on Forest Chemical Engineering, SFA, Nanjing 210042, Jiangsu, China
- Key Lab of Biomass Energy and Material, Nanjing 210042, Jiangsu, China
| | - Chengzhang Wang
- Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, Jiangsu, China
- National Engineering Lab for Biomass Chemical Utilization, Nanjing 210042, Jiangsu, China
- Key and Open Lab on Forest Chemical Engineering, SFA, Nanjing 210042, Jiangsu, China
- Key Lab of Biomass Energy and Material, Nanjing 210042, Jiangsu, China
- Institute of New Technology of Forestry, CAF, Beijing 100091, China
- Author to whom correspondence should be addressed; E-Mail: ; Tel./Fax: +86-25-8548-2471
| | - Jianzhong Ye
- Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, Jiangsu, China
- National Engineering Lab for Biomass Chemical Utilization, Nanjing 210042, Jiangsu, China
- Key and Open Lab on Forest Chemical Engineering, SFA, Nanjing 210042, Jiangsu, China
- Key Lab of Biomass Energy and Material, Nanjing 210042, Jiangsu, China
| | - Hongxia Chen
- Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, Jiangsu, China
- National Engineering Lab for Biomass Chemical Utilization, Nanjing 210042, Jiangsu, China
- Key and Open Lab on Forest Chemical Engineering, SFA, Nanjing 210042, Jiangsu, China
- Key Lab of Biomass Energy and Material, Nanjing 210042, Jiangsu, China
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Chen Y, Ai Z, Zhang L. Enhanced decomposition of dimethyl phthalate via molecular oxygen activated by Fe@Fe2O3/AC under microwave irradiation. JOURNAL OF HAZARDOUS MATERIALS 2012; 235-236:92-100. [PMID: 22883705 DOI: 10.1016/j.jhazmat.2012.07.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Revised: 05/14/2012] [Accepted: 07/05/2012] [Indexed: 06/01/2023]
Abstract
In this study, we demonstrate that the decomposition of dimethyl phthalate under microwave irradiation could be greatly enhanced over Fe@Fe(2)O(3) nanowires supported on activated carbon (Fe@Fe(2)O(3)/AC). The great enhanced decomposition of dimethyl phthalate could be attributed to a unique microwave induced molecular oxygen activation process. Upon microwave irradiation, electrons could be transferred from activated carbon to zero-valent iron, and then react with molecular oxygen to form O(2)(-) and OH radicals for the decomposition of dimethyl phthalate. The deactivation and the regeneration of Fe@Fe(2)O(3)/AC catalyst were systematically studied. We also found that microwave heating could accelerate the electron transferring from AC to Fe@Fe(2)O(3) to generate more reactive oxygen species for the decomposition of DMP than conventional oil bath heating. This novel molecular oxygen activation approach may find applications for wastewater treatment and drinking water purification.
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Affiliation(s)
- Yiling Chen
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China
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Nguimbou RM, Njintang NY, Makhlouf H, Gaiani C, Scher J, Mbofung CMF. Effect of Cross-Section Differences and Drying Temperature on the Physicochemical, Functional and Antioxidant Properties of Giant Taro Flour. FOOD BIOPROCESS TECH 2012. [DOI: 10.1007/s11947-012-0846-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Yadav SA, Raj AJ, Sathishkumar R. In vitro antioxidant activity of Barleria noctiflora L. f. Asian Pac J Trop Biomed 2012. [DOI: 10.1016/s2221-1691(12)60302-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Gülçin İ. Antioxidant activity of food constituents: an overview. Arch Toxicol 2011; 86:345-91. [DOI: 10.1007/s00204-011-0774-2] [Citation(s) in RCA: 965] [Impact Index Per Article: 74.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Accepted: 10/26/2011] [Indexed: 12/24/2022]
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Antioxidant capacity of Ocimum basilicum L. and Origanum vulgare L. extracts. Molecules 2011; 16:7401-14. [PMID: 21878860 PMCID: PMC6264430 DOI: 10.3390/molecules16097401] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Revised: 08/25/2011] [Accepted: 08/26/2011] [Indexed: 11/21/2022] Open
Abstract
The antioxidant properties of five different extracts (Et2O, CHCl3, EtOAc, n-BuOH, and H2O) of Ocimum basilicum L. and Origanum vulgare L. were studied. Antioxidant activity was assessed in six different model systems. Free radical scavenging capacity (RSC) was evaluated by measuring the scavenging capacity of extracts on DPPH, NO, O2•− and OH radical, as well as on hydrogen peroxide (H2O2). In addition, the protective effects on lipid peroxidation in liposomes (LPx) were evaluated by TBA-assay using the Fe2+/ascorbate induction system. The amount of total phenolic compounds and content of total flavonoids was also determined. EtOAc, n-BuOH and H2O extracts of O. basilicum and O. vulgare expressed very strong scavenger activity. Furthermore, the mentioned extracts showed notable inhibition of LPx. On the other hand, Et2O and CHCl3 extracts showed much weaker effect in the neutralization of DPPH, NO and O2•− radicals and the neutralization of H2O2. When examining the production of OH radicals and inhibition of LPx, the Et2O and CHCl3 extracts showed weak prooxidative properties. The observed differences in antioxidant activity could be partially explained by the levels of phenolics and flavonoids in the investigated O. basilicum and O. vulgare extracts.
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Saravanan K, Aradhya SM. Potential nutraceutical food beverage with antioxidant properties from banana plant bio-waste (pseudostem and rhizome). Food Funct 2011; 2:603-10. [DOI: 10.1039/c1fo10071h] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kell DB. Towards a unifying, systems biology understanding of large-scale cellular death and destruction caused by poorly liganded iron: Parkinson's, Huntington's, Alzheimer's, prions, bactericides, chemical toxicology and others as examples. Arch Toxicol 2010; 84:825-89. [PMID: 20967426 PMCID: PMC2988997 DOI: 10.1007/s00204-010-0577-x] [Citation(s) in RCA: 286] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2010] [Accepted: 07/14/2010] [Indexed: 12/11/2022]
Abstract
Exposure to a variety of toxins and/or infectious agents leads to disease, degeneration and death, often characterised by circumstances in which cells or tissues do not merely die and cease to function but may be more or less entirely obliterated. It is then legitimate to ask the question as to whether, despite the many kinds of agent involved, there may be at least some unifying mechanisms of such cell death and destruction. I summarise the evidence that in a great many cases, one underlying mechanism, providing major stresses of this type, entails continuing and autocatalytic production (based on positive feedback mechanisms) of hydroxyl radicals via Fenton chemistry involving poorly liganded iron, leading to cell death via apoptosis (probably including via pathways induced by changes in the NF-κB system). While every pathway is in some sense connected to every other one, I highlight the literature evidence suggesting that the degenerative effects of many diseases and toxicological insults converge on iron dysregulation. This highlights specifically the role of iron metabolism, and the detailed speciation of iron, in chemical and other toxicology, and has significant implications for the use of iron chelating substances (probably in partnership with appropriate anti-oxidants) as nutritional or therapeutic agents in inhibiting both the progression of these mainly degenerative diseases and the sequelae of both chronic and acute toxin exposure. The complexity of biochemical networks, especially those involving autocatalytic behaviour and positive feedbacks, means that multiple interventions (e.g. of iron chelators plus antioxidants) are likely to prove most effective. A variety of systems biology approaches, that I summarise, can predict both the mechanisms involved in these cell death pathways and the optimal sites of action for nutritional or pharmacological interventions.
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Affiliation(s)
- Douglas B Kell
- School of Chemistry and the Manchester Interdisciplinary Biocentre, The University of Manchester, Manchester M1 7DN, UK.
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Shikonin protects mouse brain against cerebral ischemia/reperfusion injury through its antioxidant activity. Eur J Pharmacol 2010; 643:211-7. [DOI: 10.1016/j.ejphar.2010.06.027] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2009] [Revised: 05/20/2010] [Accepted: 06/16/2010] [Indexed: 01/31/2023]
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Gülçin İ, Bursal E, Şehitoğlu MH, Bilsel M, Gören AC. Polyphenol contents and antioxidant activity of lyophilized aqueous extract of propolis from Erzurum, Turkey. Food Chem Toxicol 2010; 48:2227-38. [DOI: 10.1016/j.fct.2010.05.053] [Citation(s) in RCA: 215] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2010] [Revised: 05/14/2010] [Accepted: 05/18/2010] [Indexed: 01/02/2023]
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In vitro evaluation of the antioxidant activities in the differentially processed seeds from underutilized legume, Bauhinia vahlii Wight & Arn. Food Sci Biotechnol 2010. [DOI: 10.1007/s10068-010-0070-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Chobot V, Hadacek F. Iron and its complexation by phenolic cellular metabolites: from oxidative stress to chemical weapons. PLANT SIGNALING & BEHAVIOR 2010; 5:4-8. [PMID: 20592800 PMCID: PMC2835949 DOI: 10.4161/psb.5.1.10197] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2009] [Accepted: 09/28/2009] [Indexed: 05/20/2023]
Abstract
Iron is a transition metal that forms chelates and complexes with various organic compounds, also with phenolic plant secondary metabolites. The ligands of iron affect the redox potential of iron. Electrons may be transferred either to hydroxyl radicals, hydrogen peroxide or molecular oxygen. In the first case, oxidative stress is decreased, in the latter two cases, oxidative stress is increased. This milieu-dependent mode of action may explain the non-linear mode of action of juglone and other secondary metabolites. Attention to this phenomenon may help to explain idiosyncratic and often nonlinear effects that result in biological assays. Current chemical assays are discussed that help to explore these aspects of redox chemistry.
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Affiliation(s)
- Vladimir Chobot
- Department of Chemical Ecology and Ecosystem Research, Faculty of Life Sciences, University of Vienna, Vienna, Austria
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Augoulea A, Mastorakos G, Lambrinoudaki I, Christodoulakos G, Creatsas G. The role of the oxidative-stress in the endometriosis-related infertility. Gynecol Endocrinol 2009; 25:75-81. [PMID: 19253102 DOI: 10.1080/09513590802485012] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Endometriosis is a common gynecological disorder of the reproductive age characterised by pelvic pain, dysmenorrhea and infertility. Classic theories have failed to propose a precise pathogenetic mechanism. Recent studies have investigated the role of the immune system and oxidative stress in the development of endometriosis as well as the identification of biomarkers for a non-invasive diagnosis of the disease. At endometriotic sites, inflammatory cells including eosinophils, neutrophils and macrophages generate reactive oxygen species that contribute to the development of oxidative stress in the peritoneal cavity. Oxidative stress further augments immune response in affected sites. The oxidants exacerbate the development of endometriosis by inducing chemoattractants and endometrial cell growth-promoting activity. The oxidative proinflammatory state of the peritoneal fluid is an important mediator of endometriosis. Many studies investigate the correlation of endometriosis and oxidative stress but the results are discrepant. Furthermore, oxidative stress has been implicated in unexplained infertility and has been associated with some of its causative factors. Oxidative stress influences women's reproductive capacity. The association between endometriosis and infertility is described in several studies and still remains debated.
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Affiliation(s)
- Areti Augoulea
- 2nd Department of Obstetrics and Gynecology, Aretaieion Hospital, Athens University Medical School, Athens, Greece.
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Kell DB. Iron behaving badly: inappropriate iron chelation as a major contributor to the aetiology of vascular and other progressive inflammatory and degenerative diseases. BMC Med Genomics 2009; 2:2. [PMID: 19133145 PMCID: PMC2672098 DOI: 10.1186/1755-8794-2-2] [Citation(s) in RCA: 364] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2008] [Accepted: 01/08/2009] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND The production of peroxide and superoxide is an inevitable consequence of aerobic metabolism, and while these particular 'reactive oxygen species' (ROSs) can exhibit a number of biological effects, they are not of themselves excessively reactive and thus they are not especially damaging at physiological concentrations. However, their reactions with poorly liganded iron species can lead to the catalytic production of the very reactive and dangerous hydroxyl radical, which is exceptionally damaging, and a major cause of chronic inflammation. REVIEW We review the considerable and wide-ranging evidence for the involvement of this combination of (su)peroxide and poorly liganded iron in a large number of physiological and indeed pathological processes and inflammatory disorders, especially those involving the progressive degradation of cellular and organismal performance. These diseases share a great many similarities and thus might be considered to have a common cause (i.e. iron-catalysed free radical and especially hydroxyl radical generation).The studies reviewed include those focused on a series of cardiovascular, metabolic and neurological diseases, where iron can be found at the sites of plaques and lesions, as well as studies showing the significance of iron to aging and longevity. The effective chelation of iron by natural or synthetic ligands is thus of major physiological (and potentially therapeutic) importance. As systems properties, we need to recognise that physiological observables have multiple molecular causes, and studying them in isolation leads to inconsistent patterns of apparent causality when it is the simultaneous combination of multiple factors that is responsible.This explains, for instance, the decidedly mixed effects of antioxidants that have been observed, since in some circumstances (especially the presence of poorly liganded iron) molecules that are nominally antioxidants can actually act as pro-oxidants. The reduction of redox stress thus requires suitable levels of both antioxidants and effective iron chelators. Some polyphenolic antioxidants may serve both roles.Understanding the exact speciation and liganding of iron in all its states is thus crucial to separating its various pro- and anti-inflammatory activities. Redox stress, innate immunity and pro- (and some anti-)inflammatory cytokines are linked in particular via signalling pathways involving NF-kappaB and p38, with the oxidative roles of iron here seemingly involved upstream of the IkappaB kinase (IKK) reaction. In a number of cases it is possible to identify mechanisms by which ROSs and poorly liganded iron act synergistically and autocatalytically, leading to 'runaway' reactions that are hard to control unless one tackles multiple sites of action simultaneously. Some molecules such as statins and erythropoietin, not traditionally associated with anti-inflammatory activity, do indeed have 'pleiotropic' anti-inflammatory effects that may be of benefit here. CONCLUSION Overall we argue, by synthesising a widely dispersed literature, that the role of poorly liganded iron has been rather underappreciated in the past, and that in combination with peroxide and superoxide its activity underpins the behaviour of a great many physiological processes that degrade over time. Understanding these requires an integrative, systems-level approach that may lead to novel therapeutic targets.
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Affiliation(s)
- Douglas B Kell
- School of Chemistry and Manchester Interdisciplinary Biocentre, The University of Manchester, 131 Princess St, Manchester, M1 7DN, UK.
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Gülçin I. Antioxidant activity of L-adrenaline: a structure-activity insight. Chem Biol Interact 2008; 179:71-80. [PMID: 18929549 DOI: 10.1016/j.cbi.2008.09.023] [Citation(s) in RCA: 193] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2008] [Revised: 09/16/2008] [Accepted: 09/17/2008] [Indexed: 11/18/2022]
Abstract
L-adrenaline belongs to a group of the compounds known as catecholamines, which play an important role in the regulation of physiological process in living organisms. The antioxidant activity and antioxidant mechanism of L-adrenaline was clarified using various in vitro antioxidant assays including 1,1-diphenyl-2-picryl-hydrazyl (DPPH), 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS), N,N-dimethyl-p-phenylenediamine (DMPD(+)), and superoxide anion radicals (O(2)(-)) scavenging activity, hydrogen peroxide (H(2)O(2)), total antioxidant activity, ferric ions (Fe(3+)) and cupric ions (Cu(2+)) reducing ability, ferrous ions (Fe(2+)) chelating activity. L-adrenaline inhibited 74.2% lipid peroxidation of a linoleic acid emulsion at 30 microg/mL concentration. On the other hand, butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), alpha-tocopherol and trolox displayed 83.3, 82.1, 68.1 and 81.3% inhibition on the peroxidation of linoleic acid emulsion at the same concentration, respectively. BHA, BHT, alpha-tocopherol and trolox were used as reference antioxidants and radical scavenger compounds. Moreover, this study will bring an innovation for further studies related to antioxidant properties of L-adrenaline. According to present study, L-adrenaline had effective in vitro antioxidant and radical scavenging activity.
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Affiliation(s)
- Ilhami Gülçin
- Atatürk University, Faculty of Sciences, Department of Chemistry, TR-25240-Erzurum, Turkey.
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