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Boytz R, Keita K, Pawlak JB, Laurent-Rolle M. Comprehensive Assessment of Inactivation Methods for Madariaga Virus. Viruses 2024; 16:206. [PMID: 38399982 PMCID: PMC10892135 DOI: 10.3390/v16020206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 01/22/2024] [Accepted: 01/25/2024] [Indexed: 02/25/2024] Open
Abstract
The Eastern Equine Encephalitis Virus (EEEV) is an emerging public health threat, with the number of reported cases in the US increasing in recent years. EEEV is a BSL3 pathogen, and the North American strain is a US Federal Select Agent (SA). These restrictions make experiments with EEEV difficult to perform, as high-tech equipment is often unavailable in BSL3 spaces and due to concerns about generating aerosols during manipulations. Therefore, a range of inactivation methods suitable for different downstream analysis methods are essential for advancing research on EEEV. We used heat, chemical, and ultraviolet (UV)-based methods for the inactivation of infected cells and supernatants infected with the non-select agent Madariaga virus (MADV). Although the MADV and EEEV strains are genetically distinct, differing by 8-11% at the amino acid level, they are expected to be similarly susceptible to various inactivation methods. We determined the following to be effective methods of inactivation: heat, TRIzol LS, 4% PFA, 10% formalin, and UV radiation for infected supernatants; TRIzol, 2.5% SDS with BME, 0.2% NP40, 4% PFA, and 10% formalin for infected cells. Our results have the potential to expand the types and complexity of experiments and analyses performed by EEEV researchers.
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Affiliation(s)
- RuthMabel Boytz
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06520, USA;
| | - Kadiatou Keita
- Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA; (K.K.); (J.B.P.)
| | - Joanna B Pawlak
- Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA; (K.K.); (J.B.P.)
| | - Maudry Laurent-Rolle
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06520, USA;
- Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA; (K.K.); (J.B.P.)
- Center for Infection and Immunity, Yale University School of Medicine, New Haven, CT 06520, USA
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2
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Al-Sroji RY, Al-Laham S, Almandili A. Protective effects of vitamin D 3 (cholecalciferol) on vancomycin-induced oxidative nephrotoxic damage in rats. PHARMACEUTICAL BIOLOGY 2023; 61:755-766. [PMID: 37139624 PMCID: PMC10161947 DOI: 10.1080/13880209.2023.2204916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
CONTEXT Vancomycin (VCM), an important antibiotic against refractory infections, has been used to treat secondary infections in severe COVID-19 patients. Regrettably, VCM treatment has been associated with nephrotoxicity. Vitamin D3 can prevent nephrotoxicity through its antioxidant effect. OBJECTIVE This study tests the antioxidant effect of vitamin D3 in the prevention of VCM-induced nephrotoxicity. MATERIALS AND METHODS Wistar Albino rats (21) were randomly divided into 3 groups: (A) control; (B) VCM 300 mg/kg daily for 1 week; and (C) VCM plus vitamin D3 500 IU/kg daily for 2 weeks. All the rats were sacrificed and serum was separated to determine kidney function parameters. Their kidneys were also dissected for histological examination and for oxidative stress markers. RESULTS Lipid peroxidation, creatinine, and urea levels decreased significantly (p < 0.0001) in the vitamin D3-treated group (14.46, 84.11, 36.17%, respectively) compared to the VCM group that was given VCM (MIC<2 μg/mL) only. A significant increase was observed in superoxide dismutase levels in the vitamin D3-treated group (p < 0.05) compared to rats without treatment. Furthermore, kidney histopathology of the rats treated with vitamin D3 showed that dilatation, vacuolization and necrosis tubules decreased significantly (p < 0.05) compared with those in the VCM group. Glomerular injury, hyaline dystrophy, and inflammation improved significantly in the vitamin D3 group (p < 0.001, p < 0.05, p < 0.05, respectively) compared with the VCM group. DISCUSSION AND CONCLUSIONS Vitamin D3 can prevent VCM nephrotoxicity. Therefore, the appropriate dose of this vitamin must be determined, especially for those infected with COVID-19 and receiving VCM, to manage their secondary infections.
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Affiliation(s)
- Rouba Yasser Al-Sroji
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Damascus University, Damascus, Syria
| | - Shaza Al-Laham
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Damascus University, Damascus, Syria
| | - Ahmad Almandili
- Department of Histopathology, Faculty of Dentistry, Damascus University, Damascus, Syria
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3
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Marković Z, Komolkin AV, Egorov AV, Milenković D, Jeremić S. Alizarin as a potential protector of proteins against damage caused by hydroperoxyl radical. Chem Biol Interact 2023; 373:110395. [PMID: 36758887 DOI: 10.1016/j.cbi.2023.110395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 01/30/2023] [Accepted: 02/06/2023] [Indexed: 02/10/2023]
Abstract
Alizarin is a natural anthraquinone molecule with moderate antioxidative capacity. Some earlier investigations indicated that it can inhibit osteosarcoma and breast carcinoma cell proliferation by inhibiting of phosphorylation process of ERK protein (extracellular signal-regulated kinases). Several mechanisms of deactivation of one of the most reactive oxygen species, hydroperoxyl radical, by alizarin are estimated: hydrogen atom abstraction (HAA), radical adduct formation (RAF), and single electron transfer (SET). The plausibility of those mechanisms is estimated using density functional theory. The obtained results indicated HAA as the only thermodynamically plausible mechanism. For that purpose, two possible mechanistic pathways for hydrogen atom abstraction are studied in detail: hydrogen atom transfer (HAT) and proton-coupled electron transfer (PCET). Water and benzene are used as models of solvents with opposite polarity. To examine the difference between HAT and PCET is used kinetical approach based on the Transition state theory (TST) and determined rate constants (k). Important data used for a distinction between HAT and PCET mechanisms are obtained by applying the Quantum Theory of Atoms in Molecules (QTAIM), and by the analysis of single occupied molecular orbitals (SOMOs) in transition states for two examined mechanisms. The molecular docking analysis and molecular dynamic are used to predict the most probable positions of binding of alizarin to the sequence of ApoB-100 protein, a protein component of plasma low-density lipoproteins (LDL). It is found that alizarin links the nitrated polypeptide forming the π-π interactions with the amino acids Phenylalanine and Nitrotyrosine. The ability of alizarin to scavenge hydroperoxyl radical when it is in a sandwich structure between the polypeptide and radical species, as the operative reaction mechanism, is not significantly changed concerning its antioxidant capacity in the absence of polypeptide. Therefore, alizarin can protect the polypeptide from harmful hydroperoxyl radical attack, positioning itself between the polypeptide chain and the reactive oxygen species.
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Affiliation(s)
- Zoran Marković
- Institute for Information Technologies, Department of Science, University of Kragujevac, Jovana Cvijića bb, 34000, Kragujevac, Serbia; Department of Natural Science and Mathematics, State University of Novi Pazar, Serbia.
| | - Andrei V Komolkin
- Faculty of Physics, Department of Nuclear-Physics Research Methods, St. Petersburg State University, Saint Petersburg, Russia
| | - Andrei V Egorov
- Faculty of Physics, Department of Nuclear-Physics Research Methods, St. Petersburg State University, Saint Petersburg, Russia
| | - Dejan Milenković
- Institute for Information Technologies, Department of Science, University of Kragujevac, Jovana Cvijića bb, 34000, Kragujevac, Serbia
| | - Svetlana Jeremić
- Department of Natural Science and Mathematics, State University of Novi Pazar, Serbia.
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4
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Monfared M, Nothling MD, Mawad D, Stenzel MH. Effect of cell culture media on photopolymerizations. Biomacromolecules 2021; 22:4295-4305. [PMID: 34533298 DOI: 10.1021/acs.biomac.1c00864] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Radical polymerization is one of the most widely used methods for the synthesis of polymeric materials for biomedical applications, such as drug delivery, 3D cell culture, and regenerative medicine. Among radical polymerization reactions, thiol-ene click chemistry has shown excellent orthogonality in diverse reaction conditions. However, our preliminary investigations revealed that it fails in cell culture environment. Herein, we investigate the mechanisms by which cell culture media interfere with radical photoreactions. Three different models including free radical linear photopolymerization (N,N-dimethylacrylamide photopolymerization), free radical photohydrogelation (poly(ethylene glycol) diacrylate photohydrogelation), and thiol-ene photohydrogelation (4-arm poly(ethylene glycol)-norbornene thiol-ene photohydrogelation) were investigated. We showed that common cell culture media ingredients can interfere with radical polymerization by two different pathways; namely, radical chain transfer and radical scavenging effects. Thiol-ene photoclick hydrogelation was seriously affected by cell culture media especially under the alkaline conditions of many of them, due to the impact of deprotonation of the thiol reactant. We intend these findings to serve as a reference guide to researchers employing free radical-based molecular synthesis in cell culture settings. The nonbenign impact of media components, pH, and concentration should provide a cue for future studies that aim to prepare well-defined polymeric materials in the presence of cell culture media.
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Affiliation(s)
| | | | - Damia Mawad
- School of Materials Science and Engineering, UNSW, Sydney, NSW 2052, Australia
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Grinberg Dana A, Wu H, Ranasinghe DS, Pickard FC, Wood GPF, Zelesky T, Sluggett GW, Mustakis J, Green WH. Kinetic Modeling of API Oxidation: (1) The AIBN/H 2O/CH 3OH Radical "Soup". Mol Pharm 2021; 18:3037-3049. [PMID: 34236207 DOI: 10.1021/acs.molpharmaceut.1c00261] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Stress testing of active pharmaceutical ingredients (API) is an important tool used to gauge chemical stability and identify potential degradation products. While different flavors of API stress testing systems have been used in experimental investigations for decades, the detailed kinetics of such systems as well as the chemical composition of prominent reactive species, specifically reactive oxygen species, are unknown. As a first step toward understanding and modeling API oxidation in stress testing, we investigated a typical radical "soup" solution an API is subject to during stress testing. Here we applied ab initio electronic structure calculations to automatically generate and refine a detailed chemical kinetics model, taking a fresh look at API oxidation. We generated a detailed kinetic model for a representative azobis(isobutyronitrile) (AIBN)/H2O/CH3OH stress-testing system with a varied cosolvent ratio (50%/50%-99.5%/0.5% vol water/methanol) for 5.0 mM AIBN and representative pH values of 4-10 at 40 °C that was stirred and open to the atmosphere. At acidic conditions, hydroxymethyl alkoxyl is the dominant alkoxyl radical, and at basic conditions, for most studied initial methanol concentrations, cyanoisopropyl alkoxyl becomes the dominant alkoxyl radical, albeit at an overall lower concentration. At acidic conditions, the levels of cyanoisopropyl peroxyl, hydroxymethyl peroxyl, and hydroperoxyl radicals are relatively high and comparable, while, at both neutral and basic pH conditions, superoxide becomes the prominent radical in the system. The present work reveals the prominent species in a common model API stress testing system at various cosolvent and pH conditions, sets the stage for an in-depth quantitative API kinetic study, and demonstrates the usage of novel software tools for automated chemical kinetic model generation and ab initio refinement.
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Affiliation(s)
- Alon Grinberg Dana
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States.,Wolfson Department of Chemical Engineering, Technion, Israel Institute of Technology, Haifa 3200003, Israel
| | - Haoyang Wu
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Duminda S Ranasinghe
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Frank C Pickard
- Pfizer Global Research & Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Geoffrey P F Wood
- Pfizer Global Research & Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Todd Zelesky
- Pfizer Global Research & Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Gregory W Sluggett
- Pfizer Global Research & Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Jason Mustakis
- Pfizer Global Research & Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - William H Green
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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6
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Khan A, Beg MR, Waghmare P. Intensification of biokinetics of enzymes using ultrasound-assisted methods: a critical review. Biophys Rev 2021; 13:417-423. [PMID: 34178174 DOI: 10.1007/s12551-021-00806-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Accepted: 05/04/2021] [Indexed: 01/15/2023] Open
Abstract
The use of low intensity ultrasound has gotten surprising consideration over the last decade as a method for enhancing the catalytic activity of enzyme. Ultrasounds have the potential to significantly influence the activity of the enzymatic processes, provided that the energy input is not so high as to inactivate the enzyme. By providing the variation in parameters, various physical and chemical effects can be attained that can enhance the enzymatic reaction. Ultrasonic reactors are known for their application in bioprocesses. However, the potential of their applications is still limited broadly due to the lack of proper information about their operational and performance parameters. In this review, the detailed information about ultrasonic reactors is provided by defining the different types of reactors and number and position of ultrasonic transducers. Also, it includes mechanism of intensification and influence of ultrasonic parameters (intensity, duty cycle, and frequency) and enzymatic factors (enzyme concentration, temperature, and pH) on the catalytic activity of enzyme during ultrasound treatment.
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Affiliation(s)
- Altab Khan
- DBT-ICT Centre for Energy Biosciences, Institute of Chemical Technology, Mumbai, Maharashtra 400019 India
| | - Mohd Riyaz Beg
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai, Maharashtra 400019 India
| | - Pramod Waghmare
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai, Maharashtra 400019 India
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Feng J, Schroën K, Fogliano V, Berton-Carabin C. Antioxidant potential of non-modified and glycated soy proteins in the continuous phase of oil-in-water emulsions. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106564] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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8
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Wang L, Li X, Liu W, Jia X, Wang S, Qiao X, Cheng X. Antioxidant activity of pickled sauced meat before and after cooking and in vitro gastrointestinal digestion. J FOOD PROCESS PRES 2020. [DOI: 10.1111/jfpp.14922] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Le Wang
- China Meat Research Centre Beijing China
- Beijing Key Laboratory of Meat Processing Technology Beijing China
| | - Xiang Li
- China Meat Research Centre Beijing China
- Beijing Key Laboratory of Meat Processing Technology Beijing China
| | - Wenying Liu
- China Meat Research Centre Beijing China
- Beijing Key Laboratory of Meat Processing Technology Beijing China
| | - Xiaoyun Jia
- China Meat Research Centre Beijing China
- Beijing Key Laboratory of Meat Processing Technology Beijing China
| | - Shouwei Wang
- China Meat Research Centre Beijing China
- Beijing Key Laboratory of Meat Processing Technology Beijing China
| | - Xiaoling Qiao
- China Meat Research Centre Beijing China
- Beijing Key Laboratory of Meat Processing Technology Beijing China
| | - Xiaoyu Cheng
- China Meat Research Centre Beijing China
- Beijing Key Laboratory of Meat Processing Technology Beijing China
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9
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Production of Antioxidant Peptides from Pea Protein Using Protease from Bacillus licheniformis LBA 46. Int J Pept Res Ther 2020. [DOI: 10.1007/s10989-019-09849-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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10
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Agarkov AA, Popova TN, Boltysheva YG. Influence of 10-(6-plastoquinonyl) decyltriphenylphosphonium on free-radical homeostasis in the heart and blood serum of rats with streptozotocin-induced hyperglycemia. World J Diabetes 2019; 10:546-559. [PMID: 31915517 PMCID: PMC6944529 DOI: 10.4239/wjd.v10.i12.546] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 10/20/2019] [Accepted: 10/28/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND It is known that under conditions of tissue tolerance to insulin, observed during type 2 diabetes mellitus (DM2), there is an increased production of reactive oxygen species. Moreover, the free radicals can initiate lipid peroxidation (LPO) in lipoprotein particles. The concentration of LPO products can influence the state of insulin receptors, repressing their hormone connection activity, which is expressed as a reduction of the glucose consumption by cells. It is possible that reduction in glucose concentration during administration of 10-(6-plastoquinonyl) decyltriphenylphosphonium (SkQ1) to rats with DM2 may be related to the antioxidant properties of this substance.
AIM To establish the influence of SkQ1 on free-radical homeostasis in the heart and blood serum of rats with streptozotocin-induced hyperglycemia.
METHODS To induce hyperglycemia, rats were fed a high-fat diet for 1 mo and then administered two intra-abdominal injections of streptozotocin with a 7-d interval at a 30 mg/kg of animal weight dose with citrate buffer equal to pH 4.4. SkQ1 solution was administered intraperitoneally at a 1250 nmol/kg dose per day. Tissue samples were taken from control animals, animals with experimental hyperglycemia, rats with streptozotocin-induced glycemia that were administered SkQ1 solution, animals housed under standard vivarium conditions that were administered SkQ1, rats that were administered intraperitoneally citrate buffer equal to pH 4.4 once a week during 2 wk after 1-mo high-fat diet, and animals that were administered intraperitoneally with appropriate amount of solution without SkQ1 (98% ethanol diluted eight times with normal saline solution). To determine the intensity of free radical oxidation and total antioxidant activity, we used the biochemiluminescence method. Aconitate hydratase (AH), superoxide dismutase, and catalase activities were estimated using the Hitachi U-1900 spectrophotometer supplied with software. The amount of citrate was determined by means of the Natelson method. Real-time polymerase chain reaction was carried out using an amplifier ANK-32.
RESULTS It was found that the mitochondrial-directed antioxidant elicits decrease of biochemiluminescence parameter values that increase by pathology as well as the levels of primary products of LPO, such as diene conjugates and carbonyl compounds, which indicate intensity of free radical oxidation. At the same time, the activity of AH, considered a crucial target of free radicals, which decreased during experimental hyperglycemia, increased. Apparently, increasing activity of AH influenced the speed of citrate utilization, whose concentration decreased after administering SkQ1 by pathology. Moreover, the previously applied anti-oxidant during hyperglycemia influenced the rate of antioxidant system mobilization. Thus, superoxide dismutase and catalase activity, as well as the level of gene transcript under influence of SkQ1 at pathology, were changing to the direction of control groups values.
CONCLUSION According to the results of performed research, SkQ1 can be considered a promising addition to be included in antioxidant therapy of DM2.
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Affiliation(s)
- Aleksander A Agarkov
- Department of Medical Biochemistry and Microbiology, Voronezh State University, Voronezh 394018, Russia
| | - Tatyana N Popova
- Department of Medical Biochemistry and Microbiology, Voronezh State University, Voronezh 394018, Russia
| | - Yana G Boltysheva
- Department of Medical Biochemistry and Microbiology, Voronezh State University, Voronezh 394018, Russia
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11
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Lin L, Wang X, Li C, Cui H. Inactivation mechanism of E. coli O157:H7 under ultrasonic sterilization. ULTRASONICS SONOCHEMISTRY 2019; 59:104751. [PMID: 31473421 DOI: 10.1016/j.ultsonch.2019.104751] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 08/17/2019] [Accepted: 08/23/2019] [Indexed: 05/09/2023]
Abstract
Ultrasonic sterilization (US), as a promising non-thermal sterilization method, exhibits unique superiorities than traditional sterilization methods. In this study, the inactivation mechanism of E. coli O157:H7 under US was investigated in cucumber and bitter gourd vegetable juices. Results revealed that the US treatment showed good antibacterial ability in countering E. coli O157:H7. Through determinations of conductivity and β-galactosidase activity, significant augmentation in membrane permeability of the bacteria was confirmed after the US treatment. The morphologies of the US treated E. coli O157:H7 demonstrated that the integrity of the cell membrane was disrupted by US treatment. SDS-PAGE and LSCM data further proved the disruptive action of US, leading to the leakage of proteins and DNA through the breakage on cell membrane. The decrease of metabolic-related enzyme activity was verified through investigation of bacterial metabolism. The antibacterial mechanism analysis indicated that the US can generate free radicals which resulted in the rise of intracellular oxidative stress, attenuation of energy metabolism and inhibition of hexose monophosphate pathway. As the application verification, the US treatment can cause the deprivation of E. coli O157:H7 cell viability in vegetable juices without obvious impact on the sensory quality.
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Affiliation(s)
- Lin Lin
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xinlei Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Changzhu Li
- Department of Bioresource, Hunan Academy of Forestry, Changsha 410007, China
| | - Haiying Cui
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
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12
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Chiaramonte M, Inguglia L, Vazzana M, Deidun A, Arizza V. Stress and immune response to bacterial LPS in the sea urchin Paracentrotus lividus (Lamarck, 1816). FISH & SHELLFISH IMMUNOLOGY 2019; 92:384-394. [PMID: 31220574 DOI: 10.1016/j.fsi.2019.06.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 06/07/2019] [Accepted: 06/10/2019] [Indexed: 06/09/2023]
Abstract
The immune system of the sea urchin species Paracentrotus lividus is highly complex and, as yet, poorly understood. P. lividus coelomocytes mediate immune response through phagocytosis and encapsulation of non-self particles, in addition to the production of antimicrobial molecules. Despite this understanding, details of exactly how these processes occur and the mechanisms which drive them are still in need of clarification. In this study, we show how the bacterial lipopolysaccharides (LPS) is able to induce a stress response which increases the levels of the heat shock proteins HSP70 and HSP90 only a few hours after treatment. This study also shows that LPS treatment increases the expression of the β-thymosin-derivated protein paracentrin, the precursor of antimicrobial peptides.
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Affiliation(s)
- Marco Chiaramonte
- Dept. STEBICEF, Università Degli Studi di Palermo, Via Archirafi, 18, 90123, Palermo, Italy
| | - Luigi Inguglia
- Dept. STEBICEF, Università Degli Studi di Palermo, Via Archirafi, 18, 90123, Palermo, Italy.
| | - Mirella Vazzana
- Dept. STEBICEF, Università Degli Studi di Palermo, Via Archirafi, 18, 90123, Palermo, Italy
| | - Alan Deidun
- Dept. of Geosciences, University of Malta, Msida, MSD, 2080, Malta
| | - Vincenzo Arizza
- Dept. STEBICEF, Università Degli Studi di Palermo, Via Archirafi, 18, 90123, Palermo, Italy
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13
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Pahila J, Ishikawa Y, Ohshima T. Effects of Ergothioneine-Rich Mushroom Extract on the Oxidative Stability of Astaxanthin in Liposomes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:3491-3501. [PMID: 30789726 DOI: 10.1021/acs.jafc.9b00485] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Ergothioneine-rich crude extracts of Pleurotus cornucopiae were used as a source of antioxidative components to control the effects of lipid oxidation in astaxanthin-containing liposomes. This study aimed to elucidate the interactions of liposomal astaxanthin and lipids with ergothioneine-rich mushroom extract (ME) under radical oxidation-induced conditions to provide a better understanding of the agricultural and postharvest applications of this strategy. Azo compounds (2,2'-azobis(2-methylpropionamidine) dihydrochloride and 2,2'-azobis(2,4-dimethylvaleronitrile) were used as hydrophilic and lipophilic radical initiators, respectively. Results of this study demonstrate that the presence of ME significantly delayed the oxidative degradation of astaxanthin and controlled the progress of lipid oxidation in a liposomal system. The lipid hydroperoxide formation was significantly suppressed, while polyunsaturated fatty acids were protected from degradation. In addition, Crude ME also demonstrated more potent DPPH radical scavenging activities and EC50 than the equimolar concentrations of ergothioneine alone, which suggested the presence of additional compounds with antioxidative properties.
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Affiliation(s)
- Jade Pahila
- Department of Food Science and Technology , Tokyo University of Marine Science and Technology , 4-5-7 Konan, Minato-ku , Tokyo 108-8477 , Japan
| | - Yuki Ishikawa
- Department of Food Science and Technology , Tokyo University of Marine Science and Technology , 4-5-7 Konan, Minato-ku , Tokyo 108-8477 , Japan
| | - Toshiaki Ohshima
- Department of Food Science and Technology , Tokyo University of Marine Science and Technology , 4-5-7 Konan, Minato-ku , Tokyo 108-8477 , Japan
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14
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MacAleese L, Girod M, Nahon L, Giuliani A, Antoine R, Dugourd P. Radical Anions of Oxidized vs. Reduced Oxytocin: Influence of Disulfide Bridges on CID and Vacuum UV Photo-Fragmentation. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2018; 29:1826-1834. [PMID: 29949057 DOI: 10.1007/s13361-018-1989-8] [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: 03/07/2018] [Revised: 04/27/2018] [Accepted: 05/05/2018] [Indexed: 06/08/2023]
Abstract
The nonapeptide oxytocin (OT) is used as a model sulfur-containing peptide to study the damage induced by vacuum UV (VUV) radiations. In particular, the effect of the presence (or absence in reduced OT) of oxytocin's internal disulfide bridge is evaluated in terms of photo-fragmentation yield and nature of the photo-fragments. Intact, as well as reduced, OT is studied as dianions and radical anions. Radical anions are prepared and photo-fragmented in two-color experiments (UV + VUV) in a linear ion trap. VUV photo-fragmentation patterns are analyzed and compared, and radical-induced mechanisms are proposed. The effect of VUV is principally to ionize but secondary fragmentation is also observed. This secondary fragmentation seems to be considerably enabled by the initial position of the radical on the molecule. In particular, the possibility to form a radical on free cysteines seems to increase the susceptibility to VUV fragmentation. Interestingly, disulfide bridges, which are fundamental for protein structure, could also be responsible for an increased resistance to ionizing radiations. Graphical Abstract.
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Affiliation(s)
- Luke MacAleese
- Université de Lyon, CNRS, Université Claude Bernard Lyon 1, Institut Lumière Matière UMR 5306, 69622, Villeurbanne, France.
| | - Marion Girod
- Université de Lyon, CNRS, Université Claude Bernard Lyon 1, ENS de Lyon, Institut des Sciences Analytiques UMR 5280, 69100, Villeurbanne, France
| | - Laurent Nahon
- Synchrotron SOLEIL, BP 48 St Aubin, 91192, Gif Sur Yvette, France
| | - Alexandre Giuliani
- Synchrotron SOLEIL, BP 48 St Aubin, 91192, Gif Sur Yvette, France
- UAR1008 CEPIA, INRA, BP 71627, 44316, Nantes, France
| | - Rodolphe Antoine
- Université de Lyon, CNRS, Université Claude Bernard Lyon 1, Institut Lumière Matière UMR 5306, 69622, Villeurbanne, France
| | - Philippe Dugourd
- Université de Lyon, CNRS, Université Claude Bernard Lyon 1, Institut Lumière Matière UMR 5306, 69622, Villeurbanne, France
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15
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Gorina EI, Popova TN, Shulgin KK, Popov SS, Panchenko LF, Safonova OA. [The effect of biguanide derivatives on oxidative stress in rats with hyperglycemia]. BIOMEDIT︠S︡INSKAI︠A︡ KHIMII︠A︡ 2018; 64:261-267. [PMID: 29964263 DOI: 10.18097/pbmc20186403261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The effect of the synthetic biguanide derivatives N-[imino(1-piperidinyl)methyl]guanidine (NIPMG) and 1,3-dimethyl-5-[(carbamimidamidomethanimidoil) amino]benzoyl-1,3dicarboxylate (DCB) on the degree of proteins oxidative modification (POM) and the DNA fragmentation, the content of the lipid peroxidation primary products - conjugated dienes (CD), and the activity of glutathione antioxidant system in the liver and heart of rats with experimental hyperglycemia was investigated. Administration of the biguanides (15.0 mg/kg) to hypoglycemic rats promoted reduction of the free radical processes intensity in the studied tissues. Data about CD and POM level changes in hyperglycemic rats treated by NIPMG and DKB correlate with the results of DNA fragmentation degree evaluation. At the same time, the activity of antioxidant enzymes (glutathione peroxidase and glutathione reductase), and the reduced glutathione content in the liver and heart of rats changed toward control values. For metformin, which was used as a comparison drug, changes in the studied parameters in the same direction were also found. These results indicate the ability of the tested biguanide derivatives to exhibit a positive regulatory effect on free radical homeostasis, reducing the degree of oxidative stress at this pathology.
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Affiliation(s)
- E I Gorina
- Voronezh State University, Voronezh, Russia
| | - T N Popova
- Voronezh State University, Voronezh, Russia
| | | | - S S Popov
- Burdenko Voronezh State Medical University, Voronezh, Russia
| | - L F Panchenko
- Research Institute of General Pathology and Pathophysiology, Moscow, Russia
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16
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Wang L, Li X, Li Y, Liu W, Jia X, Qiao X, Qu C, Cheng X, Wang S. Antioxidant and angiotensin I-converting enzyme inhibitory activities of Xuanwei ham before and after cooking and in vitro simulated gastrointestinal digestion. ROYAL SOCIETY OPEN SCIENCE 2018; 5:180276. [PMID: 30109083 PMCID: PMC6083686 DOI: 10.1098/rsos.180276] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 06/04/2018] [Indexed: 06/08/2023]
Abstract
Xuanwei ham is especially rich in a large amount of peptides and free amino acids under the action of protein degradation. Some of these peptides can potentially exert bioactivities of interest for human health. Traditionally, Xuanwei ham should undergo Chinese household cooking treatments before eating. However, it has not been known how its bioactivity changes after cooking and gastrointestinal digestion. Herein, Xuanwei ham is analysed before and after cooking, as well as gastrointestinal digestion being simulated so as to evaluate and compare its effect on antioxidant and angiotensin I-converting enzyme (ACE) inhibitory activities. The antioxidant activity is analysed using five different methods, and results demonstrate that cooking has some negative effects on antioxidative capacity when determined using different antioxidant methods except for a significant increment in 1,1'-diphenyl-2-picrylhydrazyl radical-scavenging activity, while ACE inhibitory activity increases significantly after cooking compared with control samples. After gastrointestinal digestion of samples, there is a significant increment of the antioxidant and ACE inhibitory activities in comparison with control and cooked samples. Particularly, after gastrointestinal digestion, free thiols content and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) radical-cation-scavenging activity of Xuanwei ham, respectively, increase about twice and fourfold, while ACE inhibitory activity increases about twice compared to cooked samples, reaching the value of 83.73%. Therefore, through cooking the antioxidant activity and ACE inhibitory activity of Xuanwei ham are not completely lost and a part of them is still maintained, while gastrointestinal digestion produces a significant enhancement in both bioactivities, highlighting a greater potential for a beneficial physiological effect on human health after eating it.
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Affiliation(s)
- Le Wang
- China Meat Research Centre, Beijing 100068, People's Republic of China
- Beijing Key Laboratory of Meat Processing Technology, Beijing 100068, People's Republic of China
| | - Xiang Li
- China Meat Research Centre, Beijing 100068, People's Republic of China
- Beijing Key Laboratory of Meat Processing Technology, Beijing 100068, People's Republic of China
| | - Yingnan Li
- China Meat Research Centre, Beijing 100068, People's Republic of China
- Beijing Key Laboratory of Meat Processing Technology, Beijing 100068, People's Republic of China
| | - Wenying Liu
- China Meat Research Centre, Beijing 100068, People's Republic of China
- Beijing Key Laboratory of Meat Processing Technology, Beijing 100068, People's Republic of China
| | - Xiaoyun Jia
- China Meat Research Centre, Beijing 100068, People's Republic of China
- Beijing Key Laboratory of Meat Processing Technology, Beijing 100068, People's Republic of China
| | - Xiaoling Qiao
- China Meat Research Centre, Beijing 100068, People's Republic of China
- Beijing Key Laboratory of Meat Processing Technology, Beijing 100068, People's Republic of China
| | - Chao Qu
- China Meat Research Centre, Beijing 100068, People's Republic of China
- Beijing Key Laboratory of Meat Processing Technology, Beijing 100068, People's Republic of China
| | - Xiaoyu Cheng
- China Meat Research Centre, Beijing 100068, People's Republic of China
- Beijing Key Laboratory of Meat Processing Technology, Beijing 100068, People's Republic of China
| | - Shouwei Wang
- China Meat Research Centre, Beijing 100068, People's Republic of China
- Beijing Key Laboratory of Meat Processing Technology, Beijing 100068, People's Republic of China
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17
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Ren Z, Huang C, Momma H, Cui Y, Niu K, Sugiyama S, Nanno M, Nagatomi R. High Tomato and Tomato Product Consumption is Protective Against the Decline in Handgrip Strength Among Japanese Adults: The Oroshisho Study. J Epidemiol 2018; 28:397-403. [PMID: 29681560 PMCID: PMC6111105 DOI: 10.2188/jea.je20170029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Background There is scarce epidemiological evidence regarding the relationships of the consumption of different types of vegetables or fruits with change in skeletal muscle strength. We prospectively examined the relationships among Japanese adults, using handgrip strength to assess skeletal muscle strength. Methods A 3-year study was carried out with 259 Japanese adults who were 22–68 years of age. The frequency of consumption of different types of vegetables or fruits were obtained using a validated self-administered dietary history questionnaire. Handgrip strength was measured with a handheld digital Smedley dynamometer. Results After adjustment for confounding factors, the mean change in handgrip strength in participants stratified according to the level of tomato and tomato product consumption at baseline were −3.2 (95% confidence interval [CI], −4.0 to −2.3) for <1 time/week, −2.7 (95% CI, −3.6 to −1.8) for 1 time/week, −1.6 (95% CI, −2.5 to −0.8) for 2–3 times/week, and −1.7 (95% CI, −2.8 to −0.7) for ≥4 times/week, (P for trend = 0.022). However, the significant relationships of consumption of other types of vegetables and different types of fruits with change in handgrip strength were not observed. Conclusion Higher consumption of tomato and tomato product at baseline was significantly associated with reduced decline in handgrip strength among Japanese adults over a 3-year follow-up period. This study suggests that consumption of tomato and tomato product could be protective against the decline in skeletal muscle strength associated with aging.
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Affiliation(s)
- Zhongyu Ren
- Department of Medicine and Science in Sports and Exercise, Tohoku University Graduate School of Medicine
| | - Cong Huang
- Division of Biomedical Engineering for Health and Welfare, Tohoku University Graduate School of Biomedical Engineering
| | - Haruki Momma
- Division of Biomedical Engineering for Health and Welfare, Tohoku University Graduate School of Biomedical Engineering
| | - Yufei Cui
- Division of Biomedical Engineering for Health and Welfare, Tohoku University Graduate School of Biomedical Engineering
| | - Kaijun Niu
- Department of Epidemiology, School of Public Health, Tianjin Medical University
| | - Shota Sugiyama
- Department of Medicine and Science in Sports and Exercise, Tohoku University Graduate School of Medicine
| | - Masakazu Nanno
- Department of Medicine and Science in Sports and Exercise, Tohoku University Graduate School of Medicine
| | - Ryoichi Nagatomi
- Department of Medicine and Science in Sports and Exercise, Tohoku University Graduate School of Medicine.,Division of Biomedical Engineering for Health and Welfare, Tohoku University Graduate School of Biomedical Engineering
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18
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Ramu R, Shirahatti PS, Anilakumar KR, Nayakavadi S, Zameer F, Dhananjaya BL, Nagendra Prasad MN. Assessment of Nutritional Quality and Global Antioxidant Response of Banana ( Musa sp. CV. Nanjangud Rasa Bale) Pseudostem and Flower. Pharmacognosy Res 2017; 9:S74-S83. [PMID: 29333047 PMCID: PMC5757331 DOI: 10.4103/pr.pr_67_17] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND The assessment of the nutritional composition and phytochemical screening of banana pseudostem (PB) and flower (FB) advocate this nonconventional food source for routine consumption, considering its various health benefits. OBJECTIVES The aim is to assess the proximate nutrient composition, fatty acids, minerals, amino acid profile, and global antioxidant response (GAR) of PB and FB. METHODS Standard analytical procedures were used to determine the nutritional quality and GAR of PB and FB. RESULTS The chemical analysis illustrated that functional profile (water holding capacity, oil holding capacity, swelling power, and solubility), and proximate (ash, moisture, protein, fat, dietary fiber, and carbohydrate) contents were substantially high in FB than PB. With a well-proportionate amino acid profile, PB (0.56) and FB (0.54) comprised of a high ratio of essential to nonessential amino acids than those of FAO/WHO requirement (0.38). The mineral analysis revealed that PB and FB were rich in macro and micro minerals in the order K > Ca > Mg > P > Na and K > Mg > Na > Ca > P, respectively. Linoleic acid was found to be the major component in PB and FB. Besides, total antioxidant activity conducted for PB and FB by GAR method, measuring both bio-accessible and insoluble fractions, revealed that the soluble fraction fared better than the chemical extracts. CONCLUSION The results revealed high nutritional qualities of the byproducts of banana and the low cost of its production promotes their use as a prospective nonconventional food resource with high nutraceutical value. SUMMARY AOAC: Association of Analytical CommunitiesFAO/WHO: Food and Agriculture Organization of the United Nations/World health organization Abbreviations Used: Banana flower was more potent than banana pseudostem in terms of its nutritional quality and total antioxidant capacity affirming their usefulness (of both the secondary products) in the pharmaceutical sector as a nutritional supplement due to the health-related properties of dietary fibre and associated bioactive compounds.
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Affiliation(s)
- Ramith Ramu
- Department of Biotechnology, Sri Dharmasthala Manjunatheshwara College of Post Graduate Centre, Dakshina Kannada, India
| | - Prithvi S. Shirahatti
- Department of Biotechnology, Sri Dharmasthala Manjunatheshwara College of Post Graduate Centre, Dakshina Kannada, India
| | - K. R. Anilakumar
- Food Quality and Assurance Department, Biochemistry and Nutrition Discipline, Defence Food Research Laboratory, Mysore, India
| | - Shivasharanappa Nayakavadi
- Department of Veterinary Pathology, Animal Science Section, ICAR-Central Coastal Agricultural Research Institute, Ela, Goa, India
| | - Farhan Zameer
- Department of Studies in Biotechnology, Microbiology and Biochemistry, Mahajana Life Science Research Centre, Pooja Bhagavat Memorial Mahajana Post Graduate Centre, Mysore, India
| | - B. L. Dhananjaya
- Toxinology/Toxicology and Drug Discovery Unit, Centre For Emerging Technologies, Jain University, Bengaluru, India
| | - M. N. Nagendra Prasad
- Department of Biotechnology, Sri Jayachamarajendra College of Engineering, Mysore, India
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Pahila J, Kaneda H, Nagasaka R, Koyama T, Ohshima T. Effects of ergothioneine-rich mushroom extracts on lipid oxidation and discoloration in salmon muscle stored at low temperatures. Food Chem 2017; 233:273-281. [DOI: 10.1016/j.foodchem.2017.04.130] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 04/11/2017] [Accepted: 04/19/2017] [Indexed: 10/19/2022]
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20
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Oh NS, Joung JY, Lee JY, Kim Y, Kim SH. Enhancement of Antioxidative and Intestinal Anti-inflammatory Activities of Glycated Milk Casein after Fermentation with Lactobacillus rhamnosus 4B15. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:4744-4754. [PMID: 28510450 DOI: 10.1021/acs.jafc.7b01339] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this study, we investigated the glycoproteomics of glycated milk casein (GMC) and GMC fermented by Lactobacillus rhamnosus 4B15 (FGMC) and determined their biological implications. There was a significant increase in the antioxidative and anti-inflammatory activities of GMC with galactose, which were higher than those of GMC with glucose (GMC-glc). Furthermore, the fermentation of GMC by L. rhamnosus 4B15 synergistically enhanced the above activities compared to those of unfermented GMC. Especially, fermented GMC-glc (FGMC-glc) possessed remarkably improved reducing power and radical scavenging activities. Moreover, FGMC-glc ameliorated the inflammatory response and tight junction-related intestinal epithelial dysfunction. Additionally, hexose-derived glycation and modification sites in protein sequences of GMC were identified. In particular, glycosylation and sulfation of serine and threonine residues were observed, and distinct modification sites were detected after fermentation. Therefore, these results indicated that glycation-induced modification of casein and fermentation correlated strongly with the enhanced functional properties.
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Affiliation(s)
- Nam Su Oh
- R&D Center, Seoul Dairy Cooperative , Ansan, Kyunggi 15407, South Korea
| | - Jae Yeon Joung
- R&D Center, Seoul Dairy Cooperative , Ansan, Kyunggi 15407, South Korea
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University , Seoul 02841, South Korea
| | - Ji Young Lee
- R&D Center, Seoul Dairy Cooperative , Ansan, Kyunggi 15407, South Korea
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University , Seoul 02841, South Korea
| | - Younghoon Kim
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University , Jeonju 54896, South Korea
| | - Sae Hun Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University , Seoul 02841, South Korea
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21
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Moggridge J, Biggar K, Dawson N, Storey KB. Sensitive Detection of Immunoglobulin G Stability Using in Real-Time Isothermal Differential Scanning Fluorimetry: Determinants of Protein Stability for Antibody-Based Therapeutics. Technol Cancer Res Treat 2017; 16:997-1005. [PMID: 28602127 PMCID: PMC5762059 DOI: 10.1177/1533034617714149] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Protein instability is a major obstacle in the production and delivery of monoclonal antibody-based therapies for cancer. This study presents real-time isothermal differential scanning fluorimetry as an emerging method to evaluate the stability of human immunoglobulin G protein with high sensitivity. The stability of polyclonal human immunoglobulin G against urea-induced denaturation was assessed following: (1) oxidation by the free-radical generator 2,2-Azobis[2-amidinopropane]dihydrochloride and (2) in selected storage buffers. Significant differences in immunoglobulin G stability were detected by real-time isothermal differential scanning fluorimetry when the immunoglobulin G was stored in 1,4-Piperazinediethanesulfonic acid buffer compared to phosphate-buffered saline, with half-maximal rate of denaturation occurring at a higher urea concentration in 1,4-Piperazinediethanesulfonic acid than phosphate-buffered saline (Knd;PIPES = 3.56 ± 0.09 M, Knd;PBS = 2.94 ± 0.08 M; P < .01), but differential scanning fluorimetry did not detect differences in unfolding temperature (Tm;PIPES = 70.5 ± 0.3°C, Tm;PBS = 69.7 ± 0.2°C). The effects of 2,2-Azobis[2-amidinopropane]dihydrochloride-induced oxidation on immunoglobulin G stability were analyzed by real-time isothermal differential scanning fluorimetry; the oxidized protein showed greater sensitivity to urea (Knd;CNTRL = 3.96 ± 0.19 M, Knd;AAPH = 3.49 ± 0.07 M; P < .05). Similarly, differential scanning fluorimetry indicated greater thermal sensitivity of oxidized immunoglobulin G (Tm;CNTRL = 70.5 ± 0.3°C, Tm;AAPH = 62.9 ± 0.1°C; P < .001). However, a third method for assessing protein stability, pulse proteolysis, proved to be substantially less sensitive and did not detect significant effects of 2,2-Azobis[2-amidinopropane]dihydrochloride on the half-maximal concentration of urea needed to denature immunoglobulin G (Cm;CNTRL= 6.8 ± 0.1 M; Cm;AAPH = 6.4 ± 0.7 M). Overall these results demonstrate the merit of using real-time isothermal differential scanning fluorimetry as a rapid and sensitive technique for the evaluation of protein stability in solution using a quantitative real-time thermocycler.
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Affiliation(s)
- Jason Moggridge
- Institute of Biochemistry, Carleton University, Ottawa, Ontario, Canada
| | - Kyle Biggar
- Institute of Biochemistry, Carleton University, Ottawa, Ontario, Canada
| | - Neal Dawson
- Institute of Biochemistry, Carleton University, Ottawa, Ontario, Canada
| | - Kenneth B Storey
- Institute of Biochemistry, Carleton University, Ottawa, Ontario, Canada
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22
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Castañeda-Arriaga R, Domínguez-Castro A, Lee J, Alvarez-Idaboy JR, Mora-Diez N. Chemical repair of protein carbon-centred radicals: long-distance dynamic factors. CAN J CHEM 2016. [DOI: 10.1139/cjc-2016-0230] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The thermodynamic and kinetic study of the repair reactions of three damaged aliphatic amino acids (alanine, valine, and leucine) with dihydrolipoic acid (DHLA) in a polar and a nonpolar solvent is presented in this work. Two simplified protein models were explored in the most common conformations (alpha helix and beta sheet). Calculations are performed at the M06-2X-SMD/6-31++G(d,p) level of theory. DHLA has shown to be an excellent antioxidant repair agent through hydrogen-transfer reaction involving the thiol groups, with rate constants close to diffusion control in most cases. The stability of the initial protein radical is not the most important factor determining the rate of the repair reaction because stabilizing intermolecular interactions involving the protein and the antioxidant can provide additional stability to some transition states accelerating the repair of sites that would otherwise not be so quickly repaired.
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Affiliation(s)
- Romina Castañeda-Arriaga
- Facultad de Química, Departamento de Física y Química Teórica, Universidad Nacional Autónoma de México, México DF 04510, México
- Department of Chemistry, Thompson Rivers University, Kamloops, BC V2C 0C8, Canada
| | | | - JinGyu Lee
- Department of Chemistry, Thompson Rivers University, Kamloops, BC V2C 0C8, Canada
| | - J. Raul Alvarez-Idaboy
- Facultad de Química, Departamento de Física y Química Teórica, Universidad Nacional Autónoma de México, México DF 04510, México
| | - Nelaine Mora-Diez
- Department of Chemistry, Thompson Rivers University, Kamloops, BC V2C 0C8, Canada
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23
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Effects of Melaxen and Valdoxan on Free-Radical Oxidation in Rat Heart with Experimental Hyperthyroidism. Pharm Chem J 2016. [DOI: 10.1007/s11094-016-1477-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Galelli ME, Gómez MID, Castro GD, Castro JA. Carbon tetrachloride-induced free radical mediated protein oxidation in vitro and in vivo. Redox Rep 2016; 3:23-9. [DOI: 10.1080/13510002.1997.11747087] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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26
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Farooq N, Priyamvada S, Khan F, Yusufi ANK. Time dependent effect of gentamicin on enzymes of carbohydrate metabolism and terminal digestion in rat intestine. Hum Exp Toxicol 2016; 26:587-93. [PMID: 17884963 DOI: 10.1177/09603271079544] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Gentamicin (GM) is an aminoglycoside antibiotic commonly used against life threatening gram negative bacterial infections, however, nephrotoxicity remains the major concern for its long term use. Although its effects on kidney are well characterized but there have been no studies regarding its effects on intestine. We hypothesize that GM causes adaptive coordinated effect on enzymes of carbohydrate metabolism and terminal digestion/ absorption in rat intestine. Rats were administerd a nephrotoxic dose of GM (80 mg /kg body weight) daily for 15 days and a time dependent effect was observed on various enzyme activities. Activities of lactate (LDH), malate (MDH) and isocitrate (ICDH) dehydrogenases, significantly increased and peaked at different time intervals of GM treatment. Whereas LDH activity remained higher, MDH and ICDH activity slowly declined from their peak values. Activities of fructose-1,6-bisphosphatase, glucose-6-phosphatase and glucose-6-phosphate dehydrogenase increased but malic enzyme decreased in a time dependent manner. Activity of alkaline phosphatase and sucrase significantly increased but γ-glutamyl transpeptidase activity decreased. GM administration increased lipid peroxidation, glutathione peroxidase but decreased superoxide dismutase and catalase activities. The results indicate that GM treatment selectively upregulated certain enzymes of carbohydrate metabolism and terminal digestion/absorption and perturbed antioxidant defenses. Human & Experimental Taxicology, ( 2007) 26, 587—593.
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Affiliation(s)
- N Farooq
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, India
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27
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Liu B, Xu P, Brown PB, Xie J, Ge X, Miao L, Zhou Q, Ren M, Pan L. The effect of hyperthermia on liver histology, oxidative stress and disease resistance of the Wuchang bream, Megalobrama amblycephala. FISH & SHELLFISH IMMUNOLOGY 2016; 52:317-324. [PMID: 27016402 DOI: 10.1016/j.fsi.2016.03.018] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 03/05/2016] [Accepted: 03/11/2016] [Indexed: 06/05/2023]
Abstract
This study aimed to investigate the effects of hyperthermia on serum hormones, hepatic oxidization indices, hepatic heat shock protein (HSP60, 70, and 90) mRNA expression levels and liver cell ultrastructure in Megalobrama amblycephala before and after high temperature stress. Fish were exposed to the optimal temperature (25 ± 1 °C) or high temperature (32 ± 1 °C) and then challenged with Aeromonas hydrophila. The results showed that hyperthermic stress significantly increased serum adrenocorticotropic hormone (ACTH) at 0.5 and 2 d, serum cortisol (COR) at 0.5, 14, and 21 d and serum 3,5,3'-triiodothyronine (T3) at 1, 14, and 21 d after stress. Additionally, hyperthermia led to oxidative stress, as evidenced by a significant decrease in the hepatic anti-superoxide anion free radical concentration (ASAFER) at 1, 2, 7, and 21 d and in hepatic superoxide dismutase (SOD) activity at 1, 2, 14 and 21 d after stress; however, hepatic malondialdehyde content (MDA) increased at 1, 2, and 7 d after stress. Moreover, the expression of HSP60 at 1 d, HSP70 at 1 and 2 d, and HSP90 at 0.25, 0.5, 1 and 2 d after stress was higher in the stress group compared with the control group. The histological results clearly showed that hyperthermia resulted in fat and glycogen accumulation and structural alterations of the hepatocytes, mitochondria, and nuclei. The cumulative mortality increased in the high temperature stress group at 1 d after acute stress and at 2 and 7 d after chronic stress compared with the control group. Overall, 1 d or 2 d after hyperthermia stress damaged the hepatic ultrastructure and impaired mitochondrial bioenergetics. Dysfunction of the mitochondria subsequently mediated oxidative stress and improved HSP expression modulated the cellular anti-stress response, which in turn led to reduced efficacy of the immune system and increased mortality from Aeromonas hydrophila infection in Megalobrama amblycephala.
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Affiliation(s)
- Bo Liu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China.
| | - Pao Xu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China
| | - Paul B Brown
- Department of Forestry and Natural Resources, Purdue University, West Lafayette, 47907, Indiana, USA
| | - Jun Xie
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China.
| | - Xianping Ge
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China.
| | - Linghong Miao
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China
| | - Qunlan Zhou
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China
| | - Mingchun Ren
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China
| | - Liangkun Pan
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China
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28
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Mu X, Lau JKC, Lai CK, Siu KWM, Hopkinson AC, Chu IK. Nucleophilic substitution by amide nitrogen in the aromatic rings of [zn - H]˙⁺ ions; the structures of the [b₂ - H - 17]˙⁺ and [c1 - 17]⁺ ions. Phys Chem Chem Phys 2016; 18:11168-75. [PMID: 27048940 DOI: 10.1039/c6cp00405a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Peptide radical cations that contain an aromatic amino acid residue cleave to give [zn - H]˙⁺ ions with [b2 - H - 17]˙⁺ and [c1 - 17](+) ions, the dominant products in the dissociation of [zn - H]˙⁺, also present in lower abundance in the CID spectra. Isotopic labeling in the aromatic ring of [Yπ˙GG](+) establishes that in the formation of [b2 - H - 17]˙⁺ ions a hydrogen from the δ-position of the Y residue is lost, indicating that nucleophilic substitution on the aromatic ring has occurred. A preliminary DFT investigation of nine plausible structures for the [c1 - 17](+) ion derived from [Y(π)˙GG](+) shows that two structures resulting from attack on the aromatic ring by oxygen and nitrogen atoms from the peptide backbone have significantly better energies than other isomers. A detailed study of [Y(π)˙GG](+) using two density functionals, B3LYP and M06-2X, with a 6-31++G(d,p) basis set gives a higher barrier for attack on the aromatic ring of the [zn - H]˙⁺ ion by nitrogen than by the carbonyl oxygen. However, subsequent rearrangements involving proton transfers are much higher in energy for the oxygen-substituted isomer leading to the conclusion that the [c1 - 17](+) ions are the products of nucleophilic attack by nitrogen, protonated 2,7-dihydroxyquinoline ions. The [b2 - H - 17]˙⁺ ions are formed by loss of glycine from the same intermediates involved in the formation of the [c1 - 17](+) ions.
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Affiliation(s)
- Xiaoyan Mu
- Department of Chemistry, The University of Hong Kong, Hong Kong, China.
| | - Justin Kai-Chi Lau
- Department of Chemistry and Centre for Research in Mass Spectrometry, York University, 4700 Keele Street, Toronto ON, M3J 1P3, Canada. and Department of Chemistry and Biochemistry, University of Windsor, 401 Sunset Avenue, Windsor, ON N9B 3P4, Canada
| | - Cheuk-Kuen Lai
- Department of Chemistry, The University of Hong Kong, Hong Kong, China.
| | - K W Michael Siu
- Department of Chemistry and Centre for Research in Mass Spectrometry, York University, 4700 Keele Street, Toronto ON, M3J 1P3, Canada. and Department of Chemistry and Biochemistry, University of Windsor, 401 Sunset Avenue, Windsor, ON N9B 3P4, Canada
| | - Alan C Hopkinson
- Department of Chemistry and Centre for Research in Mass Spectrometry, York University, 4700 Keele Street, Toronto ON, M3J 1P3, Canada.
| | - Ivan K Chu
- Department of Chemistry, The University of Hong Kong, Hong Kong, China.
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Bochi GV, Torbitz VD, de Campos LP, Sangoi MB, Fernandes NF, Gomes P, Moretto MB, Barbisan F, da Cruz IBM, Moresco RN. In Vitro Oxidation of Collagen Promotes the Formation of Advanced Oxidation Protein Products and the Activation of Human Neutrophils. Inflammation 2016; 39:916-27. [DOI: 10.1007/s10753-016-0325-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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30
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Hu JR, Huang YH, Wang GX, Wu YX, Xian JA, Wang AL, Cao JM. Deficient and excess dietary selenium levels affect growth performance, blood cells apoptosis and liver HSP70 expression in juvenile yellow catfish Pelteobagrus fulvidraco. FISH PHYSIOLOGY AND BIOCHEMISTRY 2016; 42:249-261. [PMID: 26394863 DOI: 10.1007/s10695-015-0133-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 09/15/2015] [Indexed: 06/05/2023]
Abstract
We investigated the effects of deficient and excess dietary selenium (Se) on growth, blood cells apoptosis and liver heat shock protein 70 (HSP70) expression in juvenile yellow catfish (Pelteobagrus fulvidraco). After 8 weeks, yellow catfish (initial weight: 2.12 ± 0.01 g) fed isonitrogenous and isolipid diets containing <0.05 (deficient dietary Se) or 6.5 (excess dietary Se) mg Se/kg displayed a significantly lower weight gain ratio (WGR) than those fed a diet containing 0.23 (normal dietary Se) mg Se/kg. As dietary Se levels increased, liver Se concentration, glutathione peroxidase activity and the hepatosomatic index increased significantly. Plasma glucose concentration was highest in the normal treatment compared with the excess dietary Se treatment. Both deficient and excess dietary Se lead to increased reactive oxygen species (ROS) production and apoptosis ratio in blood cells, whereas only excess dietary Se increased their cytoplasmic free-Ca(2+) (CF-Ca(2+)) concentration. Excess dietary Se also resulted in the highest level of HSP70 expression, thereby possibly providing a protective mechanism against oxidative stress. These results indicate that both deficient and excess dietary Se restrained the growth of juvenile yellow catfish and caused oxidative stress. The overproduction of ROS may act as a signal molecule mediate apoptosis when dietary Se deficiency. Both ROS and CF-Ca(2+) were recorded when dietary Se excess, suggesting that Ca(2+) may be activated by Se and play a major role during Se-induced oxidative stress and cell apoptosis.
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Affiliation(s)
- Jun-Ru Hu
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, College of Life Science, South China Normal University, Guangzhou, 510631, China
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Yan-Hua Huang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Guo-Xia Wang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Ying-Xia Wu
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, College of Life Science, South China Normal University, Guangzhou, 510631, China
| | - Jian-An Xian
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, College of Life Science, South China Normal University, Guangzhou, 510631, China
| | - An-Li Wang
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, College of Life Science, South China Normal University, Guangzhou, 510631, China.
| | - Jun-Ming Cao
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China.
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31
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Neganova ME, Proshin AN, Redkozubova OM, Serkov IV, Serkova TP, Dubova LG, Shevtsova EF. N,N'-Substituted Selenoureas as Polyfunctional Antioxidants. Bull Exp Biol Med 2016; 160:340-2. [PMID: 26742744 DOI: 10.1007/s10517-016-3165-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Indexed: 11/25/2022]
Abstract
Analysis of antioxidant activity of synthesized selenourea derivatives showed that N,N'-substituted selenoureas inhibited Fe(III)-induced LPO in rat brain homogenate. On the other hand, oxygen- and sulfur-containing analogs exhibited no antioxidant activity or even slight prooxidant activity. Intramolecular alkylation of selenium atom also led to loss of antioxidant activity. Thus, antioxidant activity of the compounds was due to the presence of a nonalkylated selenium atom in N,N'-substituted selenourea analogs.
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Affiliation(s)
- M E Neganova
- Institute of Physiologically Active Substances, Russian Academy of Sciences, Chernogolovka, Russia.
| | - A N Proshin
- Institute of Physiologically Active Substances, Russian Academy of Sciences, Chernogolovka, Russia
| | - O M Redkozubova
- Institute of Physiologically Active Substances, Russian Academy of Sciences, Chernogolovka, Russia
| | - I V Serkov
- Institute of Physiologically Active Substances, Russian Academy of Sciences, Chernogolovka, Russia
| | - T P Serkova
- Institute of Physiologically Active Substances, Russian Academy of Sciences, Chernogolovka, Russia
| | - L G Dubova
- Institute of Physiologically Active Substances, Russian Academy of Sciences, Chernogolovka, Russia
| | - E F Shevtsova
- Institute of Physiologically Active Substances, Russian Academy of Sciences, Chernogolovka, Russia
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Fuentes-Lemus E, Dorta E, Escobar E, Aspée A, Pino E, Abasq ML, Speisky H, Silva E, Lissi E, Davies MJ, López-Alarcón C. Oxidation of free, peptide and protein tryptophan residues mediated by AAPH-derived free radicals: role of alkoxyl and peroxyl radicals. RSC Adv 2016. [DOI: 10.1039/c6ra12859a] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
When AAPH is employed as a free radical source, at low concentrations of free, peptide and protein Trp residues, the oxidation is mostly induced by alkoxyl radicals. However, at high concentrations, both peroxyl and alkoxyl radicals are involved.
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Cui Y, Liu B, Xie J, Xu P, Habte-Tsion HM, Zhang Y. Effect of heat stress and recovery on viability, oxidative damage, and heat shock protein expression in hepatic cells of grass carp (Ctenopharyngodon idellus). FISH PHYSIOLOGY AND BIOCHEMISTRY 2014; 40:721-729. [PMID: 24135954 DOI: 10.1007/s10695-013-9879-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 10/09/2013] [Indexed: 06/02/2023]
Abstract
In this study, we investigated the effects of hyperthermia and recovery on cell viability, lactate dehydrogenase (LDH) activity, superoxide dismutase (SOD) activity, malondialdehyde (MDA), total antioxidant capacity (T-AOC), and heat shock protein (HSP60, 70, and 90) mRNA expression in the hepatic cells of the grass carp, Ctenopharyngodon idellus. Triplicate groups of cultured cells were exposed to 30, 32, or 34 °C for 0.5 h and then immediately incubated at 27 °C in 5 % CO2 for 6, 12, 24, or 48 h. Hyperthermia stress greatly reduced cell viability and increased LDH release. Cell damage declined after recovery. Hyperthermia stress increased the lipid peroxide levels and reduced the antioxidant capacity (e.g., reduced SOD and T-AOC) of the cells. However, oxidative damage declined as the recovery period increased, and the levels of MDA, SOD, and T-AOC were restored. After cells were exposed to 32 °C, the expression of HSP60 after recovery for 1, 2, and 4 h (P < 0.05), the expression of HSP70 after recovery for 0.5 and 1 h (P < 0.01), and the expression of HSP90 throughout recovery were significantly higher (P < 0.01) than the prestress levels. During the recovery period, the variations in HSP gene expression reflected the transition period from a state of cellular growth to one of the cellular repairs. In conclusion, hyperthermia depresses cell viability, induces oxidative damage, and increases HSP expression, which plays an important role during hyperthermic stress in grass carp hepatic cells.
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Affiliation(s)
- Yanting Cui
- Wuxi Fisheries College, Nanjing Agriculture University, No. 9 Shanshui East Road, Wuxi, 214081, People's Republic of China,
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34
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Ghlissi Z, Hakim A, Sila A, Mnif H, Zeghal K, Rebai T, Bougatef A, Sahnoun Z. Evaluation of efficacy of natural astaxanthin and vitamin E in prevention of colistin-induced nephrotoxicity in the rat model. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2014; 37:960-966. [PMID: 24709323 DOI: 10.1016/j.etap.2014.03.004] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 02/28/2014] [Accepted: 03/06/2014] [Indexed: 06/03/2023]
Abstract
OBJECTIVE We evaluated the effect of astaxanthin (ASX) and vitamin E (vit E) on colistin methanesulfonate (CMS) induced-nephrotoxicity in rats. METHODS Animals were treated with sterile saline, 300000 or 450 000 IU/kg/day of CMS, CMS + ASX (20 mg/kg), CMS + vit E (100 mg/kg), or CMS + 1 ml/kg olive oil (OO) for 7 days. The plasma/urine creatinine (Cr) level, urine γ-glutamyl-transferase (GGT) level, and renal tissue activities in malondialdehyde (MDA), superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) and reductase (GSH), as well as renal histology were performed. RESULTS CMS induced a tubular damage, increased the GGT and MDA levels, and decreased the activities of SOD, CAT, GPx and GSH. Co-treatment with ASX or vit E restored all biochemical parameters cited above and improved the histopathological damage. CONCLUSION Nephrotoxicity induced by CMS might be due to oxidative damage. The improvement by ASX or vit E seems to be related to their antioxidant properties.
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Affiliation(s)
- Zohra Ghlissi
- Research unit of pharmacology and toxicology of xenobiotics (UR12 ES13), Faculty of Medicine, University of Sfax, 3029, Tunisia.
| | - Ahmed Hakim
- Research unit of pharmacology and toxicology of xenobiotics (UR12 ES13), Faculty of Medicine, University of Sfax, 3029, Tunisia
| | - Assaad Sila
- Unit of enzyme and Bioconversion, National School of Engineering, University of Sfax, Tunisia
| | - Hela Mnif
- Anatomopathology Laboratory, CHU Habib Bourguiba, 3029 Sfax, Tunisia
| | - Khaled Zeghal
- Research unit of pharmacology and toxicology of xenobiotics (UR12 ES13), Faculty of Medicine, University of Sfax, 3029, Tunisia
| | - Tarek Rebai
- Laboratory of Histology and Embryology, Faculty of Medicine, University of Sfax, Tunisia
| | - Ali Bougatef
- Unit of enzyme and Bioconversion, National School of Engineering, University of Sfax, Tunisia
| | - Zouheir Sahnoun
- Research unit of pharmacology and toxicology of xenobiotics (UR12 ES13), Faculty of Medicine, University of Sfax, 3029, Tunisia
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35
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Liu Q, Kong B, Han J, Sun C, Li P. Structure and antioxidant activity of whey protein isolate conjugated with glucose via the Maillard reaction under dry-heating conditions. FOOD STRUCTURE-NETHERLANDS 2014. [DOI: 10.1016/j.foostr.2013.11.004] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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36
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Omarova EO, Antonenko YN. Inhibition of oxidative hemolysis in erythrocytes by mitochondria-targeted antioxidants of SkQ series. BIOCHEMISTRY (MOSCOW) 2014; 79:139-45. [DOI: 10.1134/s0006297914020072] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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37
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Liu Q, Li J, Kong B, Jia N, Li P. Antioxidant capacity of maillard reaction products formed by a porcine plasma protein hydrolysate-sugar model system as related to chemical characteristics. Food Sci Biotechnol 2013. [DOI: 10.1007/s10068-014-0005-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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38
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Liu Q, Li J, Kong B, Li P, Xia X. Physicochemical and antioxidant properties of Maillard reaction products formed by heating whey protein isolate and reducing sugars. INT J DAIRY TECHNOL 2013. [DOI: 10.1111/1471-0307.12110] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qian Liu
- College of Food Science; Northeast Agricultural University; Harbin Heilongjiang 150030 China
| | - Jing Li
- College of Food Science; Northeast Agricultural University; Harbin Heilongjiang 150030 China
| | - Baohua Kong
- College of Food Science; Northeast Agricultural University; Harbin Heilongjiang 150030 China
| | - Peijun Li
- School of Biology and Food Engineering; Hefei University of Technology; Hefei Anhui 230009 China
| | - Xiufang Xia
- College of Food Science; Northeast Agricultural University; Harbin Heilongjiang 150030 China
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39
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Cui Y, Liu B, Xie J, Xu P, Tsion HH, Zhang Y. The effect of hyperthermia on cell viability, oxidative damage, and heat shock protein expression in hepatic cells of grass carp (Ctenopharyngodon idellus). J Therm Biol 2013. [DOI: 10.1016/j.jtherbio.2013.04.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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40
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Lim PS, Jeng Y, Wu MY, Pai MA, Wu TK, Liu CS, Chen CH, Kuo YC, Chien SW, Chen HP. Serum oxidized albumin and cardiovascular mortality in normoalbuminemic hemodialysis patients: a cohort study. PLoS One 2013; 8:e70822. [PMID: 23923025 PMCID: PMC3726598 DOI: 10.1371/journal.pone.0070822] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Accepted: 06/24/2013] [Indexed: 11/26/2022] Open
Abstract
Background Substantial evidence suggests that increased oxidative stress in hemodialysis (HD) patients may contribute to cardiovascular complications. Oxidative modifications of human serum albumin (HSA), the largest thiol pool in plasma, alter its biological properties and may affect its antioxidant potential in HD patients. Methods We conducted a long-term follow-up study in a cohort of normoalbuminemic HD patients to examine the impact of redox state of serum albumin on patients’ survival by measuring the human nonmercaptoalbumin (HNA) fraction of HSA. Results After adjusting for potential demographic, anthropometric, and clinical confounders, a positive association of HNA level with the risk of death from cardiovascular disease (CVD) and all-cause mortality was observed in normoalbuminemic HD patients. Using stratified analysis, we found a stronger association between HNA level and the risk of death from CVD and all-cause mortality in patients with pre-existing CVD. Conclusions Serum HNA level is a positive predictor of mortality in normoalbuminemic HD patients, especially among those with pre-existing CVD. Increased oxidative stress resulting from biological changes in serum albumin levels could contribute to accelerated atherosclerosis and the development of cardiovascular disease in HD patients.
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Affiliation(s)
- Paik Seong Lim
- Division of Renal Medicine, Tungs’ Taichung Metroharbour Hospital, Taichung, Taiwan
- Department of Food and Nutrition, Providence University, Taichung, Taiwan
| | - Yachung Jeng
- Division of Epidemiology and Biostatistics, Department of Medical Research, Tungs’ Taichung Metroharbour Hospital, Taichung, Taiwan
- * E-mail:
| | - Ming Ying Wu
- Division of Renal Medicine, Tungs’ Taichung Metroharbour Hospital, Taichung, Taiwan
| | - Mei-Ann Pai
- Division of Renal Medicine, Tungs’ Taichung Metroharbour Hospital, Taichung, Taiwan
| | - Tsai-Kun Wu
- Division of Renal Medicine, Tungs’ Taichung Metroharbour Hospital, Taichung, Taiwan
| | - Chia-San Liu
- Division of Renal Medicine, Tungs’ Taichung Metroharbour Hospital, Taichung, Taiwan
| | - Chan Hsu Chen
- Division of Renal Medicine, Tungs’ Taichung Metroharbour Hospital, Taichung, Taiwan
| | - Yuan-Chuan Kuo
- Division of Renal Medicine, Tungs’ Taichung Metroharbour Hospital, Taichung, Taiwan
| | - Shiaw-Wen Chien
- Division of Renal Medicine, Tungs’ Taichung Metroharbour Hospital, Taichung, Taiwan
| | - Hung Ping Chen
- Division of Renal Medicine, Tungs’ Taichung Metroharbour Hospital, Taichung, Taiwan
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El-Tantawy WH, Mohamed SAH, Abd Al Haleem EN. Evaluation of biochemical effects of Casuarina equisetifolia extract on gentamicin-induced nephrotoxicity and oxidative stress in rats. Phytochemical analysis. J Clin Biochem Nutr 2013; 53:158-65. [PMID: 24249970 PMCID: PMC3818266 DOI: 10.3164/jcbn.13-19] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2013] [Accepted: 03/27/2013] [Indexed: 11/22/2022] Open
Abstract
Nephrotoxicity is defined as renal dysfunction that arises as result of exposure to external agents such as drugs and environmental chemicals. The present work was undertaken to carry out the phytochemical study and nephroprotective activity of methanolic extract of Casuarina equisetifolia leaves in gentamicin-induced nephrotoxicity in Wistar rats. Flavonoids and phenolic acids were identified and quantified using high performance liquid chromatography. Subcutaneous injection of rats with gentamicin (80 mg/kg body weight/day) for six consecutive days induced marked acute renal toxicity, manifested by a significant increase in serum urea, creatinine and uric acid levels, along with a significant depletion of serum potassium level, compared to normal controls. Also oxidative stress was noticed in renal tissue as evidenced by a significant decrease in glutathione level, superoxide dismutase, glutathione-S-transferase activities, also a significant increase in malondialdehyde and nitric oxide levels when compared to control group. Administration of plant extract at a dose of 300 mg/kg once daily for 4 weeks restored normal renal functions and attenuated oxidative stress. In conclusion, Casuarina equisetifolia leaves extract ameliorates gentamicin-induced nephrotoxicity and oxidative damage by scavenging oxygen free radicals, decreasing lipid peroxidation and improving intracellular antioxidant defense, thus extract may be used as nephroprotective agent.
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42
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Mitra I, Saha A, Roy K. Quantification of contributions of different molecular fragments for antioxidant activity of coumarin derivatives based on QSAR analyses. CAN J CHEM 2013. [DOI: 10.1139/cjc-2012-0527] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Attempts have been made in the present work using in silico techniques for identification of essential structural features imparting antioxidant potential to naturally available coumarin molecules and their synthetic derivatives. Four different types of modeling tools have been employed for the qualitative and quantitative assessment of the molecular fragments constituting the biological pharmacophore. The descriptor-based quantitative structure–activity relationship (QSAR) and group-based QSAR (G-QSAR) models provide a quantitative estimation of the substituent requirements and the chemical nature of the parent moiety. Subsequently, 3D pharmacophore and hologram QSAR (HQSAR) models enable identification of the key molecular components necessary for the antioxidant potency to the molecules. All of the different models infer the importance of the hydrogen bond acceptor ketonic fragment for interaction of the antioxidant molecules with the neighbouring toxic radicals. Additionally, the phenyl substituent attached to the side chain and the benzene nucleus of the benzopyran moiety also constitute the response pharmacophore for the molecules under study. The models thus developed may serve as an essential query tool for screening of databases for selection of molecules bearing the essential fragments and subsequent prediction of their free radical scavenging potency.
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Affiliation(s)
- Indrani Mitra
- Drug Theoretics and Cheminformatics Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Achintya Saha
- Department of Chemical Technology, University of Calcutta, 92 A P C Road, Kolkata 700009, India
| | - Kunal Roy
- Drug Theoretics and Cheminformatics Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
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43
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Kulakova KV, Sherbatyuk TG, Davidenko DV, Klintsova ES, Makusheva MA. Dynamics of oxidative modification of proteins and specific structural features of blood plasma from animals with Pliss lymphosarcoma. Bull Exp Biol Med 2013; 154:778-80. [PMID: 23658922 DOI: 10.1007/s10517-013-2054-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The growth of Pliss lymphosarcoma in experimental animals was followed by accumulation oxidative protein modification products and structural simplification of blood plasma facies pattern in the central and peripheral zones. A correlation was found between the tumor volume, blood content of aldehyde and ketone dinitrophenylhydrazones, and structural characteristics of the peripheral and central facies zone.
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Affiliation(s)
- K V Kulakova
- Group of Pathomorphology and Electron Microscopy, Nizhny Novgorod Research Institute of Traumatology and Orthopedics, Ministry of Health and Social Development of the Russian Federation, Russia.
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44
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Liu Y, Ying YL, Wang HY, Cao C, Li DW, Zhang WQ, Long YT. Real-time monitoring of the oxidative response of a membrane–channel biomimetic system to free radicals. Chem Commun (Camb) 2013; 49:6584-6. [DOI: 10.1039/c3cc41763h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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45
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González MA, del Carmen Contini M, Millen N, Mahieu ST. Role of melatonin in the oxidative damage prevention at different times of hepatic regeneration. Cell Biochem Funct 2012; 30:701-8. [DOI: 10.1002/cbf.2855] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2011] [Revised: 04/20/2012] [Accepted: 05/28/2012] [Indexed: 11/08/2022]
Affiliation(s)
- Marcela Aida González
- Facultad de Bioquímica y Ciencias Biológicas, Departamento de Ciencias Biológicas; Universidad Nacional del Litoral; Santa Fe; Argentina
| | - María del Carmen Contini
- Facultad de Bioquímica y Ciencias Biológicas, Cátedra de Fisiología Humana; Universidad Nacional del Litoral; Santa Fe; Argentina
| | - Nestor Millen
- Facultad de Bioquímica y Ciencias Biológicas, Cátedra de Fisiología Humana; Universidad Nacional del Litoral; Santa Fe; Argentina
| | - Stella Teresita Mahieu
- Facultad de Bioquímica y Ciencias Biológicas, Cátedra de Fisiología Humana; Universidad Nacional del Litoral; Santa Fe; Argentina
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Basarslan F, Yilmaz N, Davarci I, Akin M, Ozgur M, Yilmaz C, Ulutas KT. Effects of ebselen on radiocontrast media–induced hepatotoxicity in rats. Toxicol Ind Health 2012; 29:746-52. [DOI: 10.1177/0748233712442730] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Oxidative stress is accepted as a potential responsible mechanism in the pathogenesis of radiocontrast media (RCM)-induced hepatotoxicity. Therefore, we aimed to investigate the protective effects of ebselen against RCM-induced hepatotoxicity by measuring tissue oxidant/antioxidant parameters and histological changes in rats. Wistar albino rats were randomly separated into four groups consisting of eight rats per group. Normal saline was given to the rats in control group (group 1). RCM was given to the rats in group 2, and both RCM and ebselen were given to the rats in group 3. Only ebselen was given to the rats in group 4. Liver sections of the killed animals were analyzed to measure the levels of malondialdehyde (MDA) and activities of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px), as well as histopathological changes. In RCM group, SOD and CAT levels were found increased. In RCM-ebselen group, MDA, SOD and CAT levels were found decreased. In RCM-ebselen group, however, GSH-Px activities of liver tissue increased. All these results indicated that ebselen produced a protective mechanism against RCM-induced hepatotoxicity and took part in oxidative stress.
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Affiliation(s)
| | - Nigar Yilmaz
- Department of Biochemistry, Mustafa Kemal University, Hatay, Turkey
| | - Isil Davarci
- Department of Anesthesia and Reanimation, Mustafa Kemal University, Hatay, Turkey
| | - Mustafa Akin
- Department of Pathology, Mustafa Kemal University, Hatay, Turkey
| | - Mustafa Ozgur
- Department of Anesthesia and Reanimation, Antakya State Hospital, Hatay, Turkey
| | - Cahide Yilmaz
- Department of Pediatric Neurology, Mustafa Kemal University, Hatay, Turkey
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Basarslan F, Yilmaz N, Ates S, Ozgur T, Tutanc M, Motor VK, Arica V, Yilmaz C, Inci M, Buyukbas S. Protective effects of thymoquinone on vancomycin-induced nephrotoxicity in rats. Hum Exp Toxicol 2012; 31:726-33. [PMID: 22318306 DOI: 10.1177/0960327111433185] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
AIM Oxidative stress has been implicated as a potential responsible mechanism in the pathogenesis of vancomycin (VCM)-induced renal toxicity. Therefore, we aimed to investigate the protective effect of thymoquinone (TQ) against VCM-induced nephrotoxicity by tissue oxidant/antioxidant parameters and histological changes in rats. MATERIALS AND METHODS Wistar albino rats were randomly separated into four groups consisting of seven rats per group. The groups had normal saline (control group), VCM, VCM and TQ and TQ, respectively. VCM was injected intraperitoneally at a dose of 200 mg/kg and continued at 12-h intervals for 7 days. TQ was injected intraperitoneally at a dose of 10 mg/kg and continued at 24 h intervals for 8 days. Animals were killed and blood samples were analyzed for the levels of serum blood urea nitrogen (BUN) and creatinine (Cr). Kidney specimens were analyzed for levels of malondialdehyde (MDA) and activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) as well as for histopathological changes. RESULTS We found that the levels of serum BUN, Cr and kidney tissue MDA were increased in the VCM group. Activities of SOD and GSH-Px in kidney tissue were decreased. TQ administration ameliorated significantly these changes. CONCLUSION These results indicate that the TQ produces a protective mechanism against VCM-induced nephrotoxicity and suggest a role of oxidative stress in pathogenesis.
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Estévez M. Protein carbonyls in meat systems: A review. Meat Sci 2011; 89:259-79. [DOI: 10.1016/j.meatsci.2011.04.025] [Citation(s) in RCA: 575] [Impact Index Per Article: 44.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Revised: 04/20/2011] [Accepted: 04/25/2011] [Indexed: 01/15/2023]
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Muthuraman A, Singla SK, Rana A, Singh A, Sood S. Reno-protective role of flunarizine (mitochondrial permeability transition pore inactivator) against gentamicin induced nephrotoxicity in rats. YAKUGAKU ZASSHI 2011; 131:437-43. [PMID: 21372541 DOI: 10.1248/yakushi.131.437] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study was aimed to evaluate the role of flunarizine on gentamicin (GEM) induced nephrotoxicity in rat. Administration of GEM (40 mg/kg, s.c. for 10 consecutive days) significantly increased blood urea nitrogen (BUN), N-acetyl β-d-glucosaminidase (NAG), thiobarbituric acid reactive substances (TBARS) and total calcium whereas, decreased body weight, fractional excretion of sodium (FrNa), creatinine clearance (CrCl), reduced glutathione (GSH), mitochondrial cytochrome c oxidase (Cyt-C oxidase) and ATP levels resulting in nephrotoxicity. Further, flunarizine (100, 200 and 300 µmol/kg, p.o.) was administered to evaluate its renoprotective effect against GEM induced nephrotoxicity and the results were compared with cylcosporin A (CsA, 50 µmol/kg, p.o.). Flunarizine resulted in the attenuation of renal dysfunction and oxidative marker changes in rats subjected to GEM induced nephrotoxicity in a dose dependent manner. Medium and higher doses of flunarizine produced significant renal protective effect which was comparable to cyclosporin A. The results of this study clearly revealed that flunarizine protected the kidney against the nephrotoxic effect of GEM via mitochondrial permeability transition pore (MPTP) inactivation potential.
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Affiliation(s)
- Arunachalam Muthuraman
- Rayat Institute of Pharmacy, Ropar Campus, Nawanshahr District, Near Railmajra, Punjab, India.
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Brunet C, Antoine R, Allouche AR, Dugourd P, Canon F, Giuliani A, Nahon L. Gas phase photo-formation and vacuum UV photofragmentation spectroscopy of tryptophan and tyrosine radical-containing peptides. J Phys Chem A 2011; 115:8933-9. [PMID: 21744817 DOI: 10.1021/jp205617x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Tryptophan (Trp(•)) and tyrosyl (Tyr(•)) radical containing peptides were produced by UV laser-induced electron detachment from a suitable precursor. Vacuum ultraviolet (VUV) action spectra of these radical peptides were recorded with synchrotron radiation in the 4.5-16 eV range, from which fragmentation pathways and yields are measured as a function of the VUV photon energy. An enhancement in photofragmentation yields of radical species by 1 order of magnitude with respect to nonradical peptides is demonstrated here for the first time. Photofragmentation spectra are compared with absorption spectra for model chromophores calculated in the frame of the time-dependent density functional theory (TDDFT). A qualitative agreement in the position of bands in the 6-8 eV region is observed between experimental photofragmentation and calculated absorption spectra. Photofragmentation spectra of peptide radicals can be useful to better assess the complex deactivation pathways that occur following the absorption of a VUV photon in biomolecular radical anions.
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Affiliation(s)
- Claire Brunet
- Université de Lyon , F-69622, Lyon, France, Université Lyon 1, 69622 Villeurbanne Cedex, France
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