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Akinyemi AJ, Du XQ, Aguilan J, Sidoli S, Hirsch D, Wang T, Reznik S, Fuloria M, Charron MJ. Human cord plasma proteomic analysis reveals sexually dimorphic proteins associated with intrauterine growth restriction. Proteomics 2024; 24:e2300260. [PMID: 38059784 DOI: 10.1002/pmic.202300260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 11/09/2023] [Accepted: 11/15/2023] [Indexed: 12/08/2023]
Abstract
Intrauterine growth restriction (IUGR) is associated with increased risk of cardiometabolic disease later in life and has been shown to affect female and male offspring differently, but the mechanisms remain unclear. The purpose of this study was to identify proteomic differences and metabolic risk markers in IUGR male and female neonates when compared to appropriate for gestational age (AGA) babies that will provide a better understanding of IUGR pathogenesis and its associated risks. Our results revealed alterations in IUGR cord plasma proteomes with most of the differentially abundant proteins implicated in peroxisome pathways. This effect was evident in females but not in males. Furthermore, we observed that catalase activity, a peroxisomal enzyme, was significantly increased in females (p < 0.05) but unchanged in males. Finally, we identified risk proteins associated with obesity, type-2 diabetes, and glucose intolerance such as EGF containing fibulin extracellular matrix protein 1 (EFEMP1), proprotein convertase subtilisin/kexin type 9 (PCSK9) and transforming growth factor beta receptor 3 (TGFBR3) proteins unique to females while coagulation factor IX (C9) and retinol binding protein 4 (RBP4) are unique in males. In conclusion, IUGR may display sexual dimorphism which may be associated with differences in lifelong risk for cardiometabolic disease between males and females.
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Affiliation(s)
| | - Xiu Quan Du
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Jennifer Aguilan
- Department of Pathology, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Simone Sidoli
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, USA
| | - David Hirsch
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Tao Wang
- Department of Epidemiology, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Sandra Reznik
- Department of Pathology, Albert Einstein College of Medicine, Bronx, New York, USA
- Department of Obstetrics and Gynecology and Women's Health, Albert Einstein College of Medicine, Bronx, New York, USA
- Department of Pharmaceutical Sciences, St. John's University College of Pharmacy and Health Sciences, Jamaica, New York, USA
| | - Mamta Fuloria
- Department of Pediatrics, Division of Neonatology, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Maureen J Charron
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, USA
- Department of Obstetrics and Gynecology and Women's Health, Albert Einstein College of Medicine, Bronx, New York, USA
- Department of Medicine, Division of Endocrinology, Norman Fleisher Institute, Albert Einstein College of Medicine, Bronx, New York, USA
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Fernández-Fariña S, Velo-Heleno I, Rodríguez-Silva L, Maneiro M, González-Noya AM, Pedrido R. A Dinuclear Copper(II) Complex Electrochemically Obtained via the Endogenous Hydroxylation of a Carbamate Schiff Base Ligand: Synthesis, Structure and Catalase Activity. Int J Mol Sci 2024; 25:2154. [PMID: 38396831 PMCID: PMC10889102 DOI: 10.3390/ijms25042154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 02/01/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
In the present work, we report a neutral dinuclear copper(II) complex, [Cu2(L1)(OH)], derived from a new [N,O] donor Schiff base ligand L1 that was formed after the endogenous hydroxylation of an initial carbamate Schiff base H2L coordinated with copper ions in an electrochemical cell. The copper(II) complex has been fully characterized using different techniques, including X-ray diffraction. Direct current (DC) magnetic susceptibility measurements were also performed at variable temperatures, showing evidence of antiferromagnetic behavior. Its catalase-like activity was also tested, demonstrating that this activity is affected by temperature.
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Affiliation(s)
- Sandra Fernández-Fariña
- Departamento de Química Inorgánica, Facultade de Ciencias, Campus Terra, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (S.F.-F.) (L.R.-S.); (M.M.)
| | - Isabel Velo-Heleno
- Departamento de Química Inorgánica, Facultade de Química, Campus Vida, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (I.V.-H.); (A.M.G.-N.)
| | - Laura Rodríguez-Silva
- Departamento de Química Inorgánica, Facultade de Ciencias, Campus Terra, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (S.F.-F.) (L.R.-S.); (M.M.)
| | - Marcelino Maneiro
- Departamento de Química Inorgánica, Facultade de Ciencias, Campus Terra, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (S.F.-F.) (L.R.-S.); (M.M.)
| | - Ana M. González-Noya
- Departamento de Química Inorgánica, Facultade de Química, Campus Vida, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (I.V.-H.); (A.M.G.-N.)
| | - Rosa Pedrido
- Departamento de Química Inorgánica, Facultade de Química, Campus Vida, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (I.V.-H.); (A.M.G.-N.)
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Tang H, Chen J, Qi LH, Lyu M, Quan H, Tan ZJ. Multifunctional AuPt Nanoparticles for Synergistic Photothermal and Radiation Therapy. Int J Nanomedicine 2023; 18:6869-6882. [PMID: 38026515 PMCID: PMC10674778 DOI: 10.2147/ijn.s422348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023] Open
Abstract
Background Photothermal therapy (PTT) has gained considerable interest as an emerging modality for cancer treatment in recent years. Radiation therapy (RT) has been widely used in the clinic as a traditional treatment method. However, RT and PTT treatments are limited by side effects and penetration depth, respectively. In addition, hypoxia within the tumor can lead to increased resistance to treatment. Methods We synthesized multiple sizes of AuPt by modulating the reaction conditions. The smallest size of AuPt was selected and modified with folic acid (FA) for PTT and RT synergy therapy. Various methods including transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FITR) are used to determine the structure and composition of AuPt-FA (AF). In addition, we researched the photothermal properties of AF with IR cameras and infrared lasers. Flow cytometry, colony formation assays, CCK8, and fluorescent staining for probing the treatment effect in vitro. Also, we explored the targeting of AF by TEM and In Vivo Imaging Systems (IVIS). In vivo experiments, we record changes in tumor volume and weight as well as staining of tumor sections (ROS, Ki67, and hematoxylin and eosin). Results The AuPt with particle size of 16 nm endows it with remarkably high photothermal conversion efficiency (46.84%) and catalase activity compared to other sizes of AuPt (30 nm and 100 nm). AF alleviates hypoxia in the tumor microenvironment, leading to the production of more reactive oxygen species (ROS) during the treatment. In addition, the therapeutic effect was significantly enhanced by combining RT and PTT, with an apoptosis rate of 81.1% in vitro and an in vivo tumor volume reduction rate of 94.0% in vivo. Conclusion These results demonstrate that AF potentiates the synergistic effect of PTT and RT and has the potential for clinical translation.
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Affiliation(s)
- Han Tang
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, People’s Republic of China
| | - Ji Chen
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan, People’s Republic of China
| | - Lu He Qi
- School of Resource and Environmental Sciences, Wuhan University, Wuhan, People’s Republic of China
| | - Meng Lyu
- Department of Gastrointestinal Surgery, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University, the First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, People’s Republic of China
| | - Hong Quan
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, People’s Republic of China
| | - Zhi Jie Tan
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, People’s Republic of China
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Khan S, Rehman MU, Khan MZI, Kousar R, Muhammad K, Haq IU, Ijaz Khan M, Almasoud N, Alomar TS, Rauf A. In vitro and in vivo antioxidant therapeutic evaluation of phytochemicals from different parts of Dodonaea viscosa Jacq. Front Chem 2023; 11:1268949. [PMID: 38025066 PMCID: PMC10662045 DOI: 10.3389/fchem.2023.1268949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 10/17/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction: Natural antioxidants are vital to promote health and treat critical disease conditions in the modern healthcare system. This work adds to the index of natural medicines by exploring the antioxidant potential of Dodonaea viscosa Jacq. (Plant-DV). Material and Methods: The aqueous extract of leaves and flower-containing seeds from plant-DV in freshly prepared phosphate buffer is evaluated for antioxidant potential. In vitro antioxidant potential of the nascent and oxidatively stressed extracts was analyzed through glutathione (GSH) assay, hydrogen peroxide (H2O2) scavenging effect, glutathione-S-transferase (GST) assay, and catalase (CAT) activity. In vivo therapeutic assessment is performed in Wistar Albino rats using vitamin C as a positive control. The livers and kidneys of individual animals are probed for glutathione, glutathione-S-transferase, and catalase activities. Results: flower-containing seeds have GSH contents (59.61 µM) and leaves (32.87 µM) in the fresh aqueous extracts. The hydrogen peroxide scavenging effect of leaves is superior to flower-containing seeds with 17.25% and 14.18% respectively after 30 min incubation. However, oxidatively stressed extracts with Ag(I) and Hg(II) show declining GSH and GST levels. The plant extracts are non-toxic in rats at 5000 mg/Kg body weight. Liver and kidneys homogenate reveal an increase in GSH, GST, and CAT levels after treatment with 150 ± 2 mg/kg and 300 ± 2 mg/kg body weight plant extract compared with normal saline-treated negative and vitamin C treated positive control. Discussion: The crude aqueous extracts of leaves and flower-containing seeds of plant-DV show promising antioxidant potential both in in vitro and in vivo evaluation.
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Affiliation(s)
- Siraj Khan
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
- Cadson College of Pharmacy, Kharian, Pakistan
| | - Mujeeb Ur Rehman
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
- Department of Pharmacy, Abasyn University Islamabad Campus, Islamabad, Pakistan
| | | | - Rehana Kousar
- Physiology Lab, Crop Sciences Institute, National Agricultural Research Centre (NARC), Islamabad, Pakistan
| | - Khan Muhammad
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Ihsan Ul Haq
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Muhammad Ijaz Khan
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
- Department of Pharmacy, University of Swabi, Swabi, Khyber Pakhtunkhwa, Pakistan
| | - Najla Almasoud
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Taghrid S. Alomar
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Abdur Rauf
- Department of Chemistry, University of Swabi, Swabi, Khyber Pakhtunkhwa, Pakistan
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Matłok N, Piechowiak T, Kapusta I, Józefczyk R, Balawejder M. Variability of Properties Modulating the Biosynthesis of Biologically Active Compounds in Young Barley Treated with Ozonated Water. Molecules 2023; 28:5038. [PMID: 37446700 DOI: 10.3390/molecules28135038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 06/23/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
This paper presents the effects of irrigating barley plants with different type of water solutions saturated with gaseous ozone generated from atmospheric air. The study investigated the effects of the applied types of water on the modulation of the biosynthesis of selected bioactive compounds (content of total polyphenols, small molecule antioxidants, vitamin C) in the produced plant material. A number of transformations of reactive oxygen species (ROS) and nitrogen compounds have also been postulated; these are observed during the saturation of water with gaseous O3 and 30 min after the end of the process. It was shown that after the process of water saturation with gaseous O3, the gas later is converted to compounds with high oxidative potential and good stability; these, in turn, lead to the oxidation of oxidates generated from atmospheric nitrogen into nitrates, which exhibit fertilising properties. Thirty minutes after the process of H2O saturation with gaseous O3 was completed, the tests showed the highest concentrations of nitrates and the relatively high oxidative potential of the solution originating from H2O2 with a low concentration of the dissolved O3. This solution exhibited the highest activity modulating the biosynthesis of polyphenols, small molecule antioxidants and vitamin C in young barley plants. The resulting differences were significant, and they were reflected by 15% higher total polyphenol content, 35% higher antioxidative potential and 57% greater content of vitamin C compared to the control specimens (plants treated with fresh H2O).
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Affiliation(s)
- Natalia Matłok
- Department of Food and Agriculture Production Engineering, University of Rzeszow, St. Zelwerowicza 4, 35-601 Rzeszow, Poland
| | - Tomasz Piechowiak
- Department of Chemistry and Food Toxicology, University of Rzeszow, St. Ćwiklińskiej 1a, 35-601 Rzeszow, Poland
| | - Ireneusz Kapusta
- Department of Food Technology and Human Nutrition, Rzeszow University, St. Zelwerowicza 4, 35-601 Rzeszow, Poland
| | - Radosław Józefczyk
- Department of Chemistry and Food Toxicology, University of Rzeszow, St. Ćwiklińskiej 1a, 35-601 Rzeszow, Poland
| | - Maciej Balawejder
- Department of Chemistry and Food Toxicology, University of Rzeszow, St. Ćwiklińskiej 1a, 35-601 Rzeszow, Poland
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Knobling B, Franke G, Carlsen L, Belmar Campos C, Büttner H, Klupp EM, Maurer PM, Knobloch JK. Phenotypic Variation in Clinical S. aureus Isolates Did Not Affect Disinfection Efficacy Using Short-Term UV-C Radiation. Microorganisms 2023; 11:1332. [PMID: 37317306 DOI: 10.3390/microorganisms11051332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 05/10/2023] [Accepted: 05/16/2023] [Indexed: 06/16/2023] Open
Abstract
Pigmentation, catalase activity and biofilm formation are virulence factors that cause resistance of Staphylococcus aureus to environmental stress factors including disinfectants. In recent years, automatic UV-C room disinfection gained greater importance in enhanced disinfection procedures to improve disinfection success in hospitals. In this study, we evaluated the effect of naturally occurring variations in the expression of virulence factors in clinical S. aureus isolates on tolerance against UV-C radiation. Quantification of staphyloxanthin expression, catalase activity and biofilm formation for nine genetically different clinical S. aureus isolates as well as reference strain S. aureus ATCC 6538 were performed using methanol extraction, a visual approach assay and a biofilm assay, respectively. Log10 reduction values (LRV) were determined after irradiation of artificially contaminated ceramic tiles with 50 and 22 mJ/cm2 UV-C using a commercial UV-C disinfection robot. A wide variety of virulence factor expression was observed, indicating differential regulation of global regulatory networks. However, no direct correlation with the strength of expression with UV-C tolerance was observed for either staphyloxanthin expression, catalase activity or biofilm formation. All isolates were effectively reduced with LRVs of 4.75 to 5.94. UV-C disinfection seems therefore effective against a wide spectrum of S. aureus strains independent of occurring variations in the expression of the investigated virulence factors. Due to only minor differences, the results of frequently used reference strains seem to be representative also for clinical isolates in S. aureus.
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Affiliation(s)
- Birte Knobling
- Department Infection Prevention and Control, Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Gefion Franke
- Department Infection Prevention and Control, Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Laura Carlsen
- Department Infection Prevention and Control, Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Cristina Belmar Campos
- Department Infection Prevention and Control, Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Henning Büttner
- Department Infection Prevention and Control, Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Eva M Klupp
- Department Infection Prevention and Control, Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Philipp Maximilian Maurer
- Department Infection Prevention and Control, Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Johannes K Knobloch
- Department Infection Prevention and Control, Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
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Deryugina AV, Danilova DA, Pichugin VV, Brichkin YD. The Effect of Molecular Hydrogen on Functional States of Erythrocytes in Rats with Simulated Chronic Heart Failure. Life (Basel) 2023; 13:life13020418. [PMID: 36836774 PMCID: PMC9960520 DOI: 10.3390/life13020418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/14/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
Molecular hydrogen has an anti-inflammatory and cardioprotective effect, which is associated with its antioxidant properties. Erythrocytes are subjected to oxidative stress in pathologies of the cardiovascular system, which is the cause of a violation of the gas transport function of blood and microcirculation. Therefore, our aim was to investigate the effects of H2 inhalation on the functional states of red blood cells (RBCs) in chronic heart failure (CHF) in rats. The markers of lipid peroxidation, antioxidant capacity, electrophoretic mobility of erythrocytes (EPM), aggregation, levels of adenosine triphosphate (ATP) and 2,3-diphosphoglyceric acid (2,3-DPG), hematological parameters were estimated in RBCs. An increase in EPM and a decrease in the level of aggregation were observed in groups with multiple and single H2 application. The orientation of lipoperoxidation processes in erythrocytes was combined with the dynamics of changes in oxidative processes in blood plasma, it was observed with both single and multiple exposures, although the severity of the changes was greater with multiple H2 inhalations. Probably, the antioxidant effects of molecular hydrogen mediate its metabolic action. Based on these data, we conclude the use of H2 improves microcirculation and oxygen transport function of blood and can be effective in the treatment of CHF.
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Affiliation(s)
- Anna Vyacheslavovna Deryugina
- Department of Physiology and Anatomy, Institute of Biology and Biomedicine National Research, Lobachevsky State University of Nizhny Novgorod Address: 23 Prospekt Gagarina (Gagarin Avenue), 603950 Nizhny Novgorod, Russia
| | - Darya Andreevna Danilova
- Department of Physiology and Anatomy, Institute of Biology and Biomedicine National Research, Lobachevsky State University of Nizhny Novgorod Address: 23 Prospekt Gagarina (Gagarin Avenue), 603950 Nizhny Novgorod, Russia
- Correspondence: ; Tel.: +7-920-046-50-33
| | | | - Yurii Dmitrievich Brichkin
- Clinical Cardiac Surgery Hospital, Nizhny Novgorod Address: 209, Vaneeva Street, 603081 Nizhny Novgorod, Russia
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Urusov AE, Tolmacheva AS, Aulova KS, Nevinsky GA. Autoantibody-Abzymes with Catalase Activity in Experimental Autoimmune Encephalomyelitis Mice. Molecules 2023; 28. [PMID: 36770997 DOI: 10.3390/molecules28031330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/26/2023] [Accepted: 01/28/2023] [Indexed: 01/31/2023] Open
Abstract
The exact mechanisms of the evolution of multiple sclerosis are still unknown. At the same time, the development in C57BL/6 mice of experimental autoimmune encephalomyelitis (EAE, simulating human multiple sclerosis) happens as a result of the violation of bone marrow hematopoietic stem cell differentiation profiles integrated with the production of toxic auto-antibodies splitting the basic myelin protein, myelin oligodendrocyte glycoprotein (MOG), histones, and DNA. It has been shown that IgGs from the plasma of healthy humans and autoimmune patients oxidize many different compounds due to their peroxidase (H2O2-dependent) and oxidoreductase (H2O2-independent) activities. Here, we first analyzed the changes in the relative catalase activity of IgGs from C57BL/6 mice blood plasma over time at different stages of the EAE development (onset, acute, and remission phases). It was shown that the catalase activity of IgGs of 3-month-old mice is, on average, relatively low (kcat = 40.7 min-1), but it increases during 60 days of spontaneous development of EAE 57.4-fold (kcat = 2.3 × 103 min-1). The catalase activity of antibodies increases by a factor of 57.4 by 20 days after the immunization of mice with MOG (kcat = 2.3 × 103 min-1), corresponding to the acute phase of EAE development, and 52.7-fold by 60 days after the treatment of mice with a DNA-histone complex (kcat = 2.1 × 103 min-1). It is the acceleration of the EAE development after the treatment of mice with MOG that leads to the increased production of lymphocytes synthesizing antibodies with catalase activity. All data show that the IgGs' catalase activity can play an essential role in reducing the H2O2 concentration and protecting mice from oxidative stress.
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Jiang Y, Li T, Yang J, Wang X, Song X, Chen G, Dai G, Li R, Yao C, Chen J, Chen C, Gong X, Yang L. Sustained intra-articular reactive oxygen species scavenging and alleviation of osteoarthritis by biocompatible amino-modified tantalum nanoparticles. Front Bioeng Biotechnol 2023; 11:1118850. [PMID: 36714006 PMCID: PMC9880278 DOI: 10.3389/fbioe.2023.1118850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 01/04/2023] [Indexed: 01/15/2023] Open
Abstract
Recent studies highlight the vital role of oxidative stress and reactive oxygen species (ROS) during progression of osteoarthritis (OA). Attenuating oxidative stress and reducing reactive oxygen species generation in joints represent reasonable strategies for the treatment of osteoarthritis. To address the potential question for clinical translation, and improve the biocompatibility and long-term performance of current antioxidants, the present study provided high biocompatible small positively charged tantalum nanoparticles (Ta-NH2 NPs) with sustained intra-articular catalase activity and first applied to osteoarthritis intervention. Our in vitro results showed that Ta-NH2 NPs were stable with good biocompatibility, and protected viability and hyaline-like phenotype in H2O2-challenged chondrocytes. In addition, the in vivo biodistribution data demonstrated a sustained retention of Ta-NH2 NPs in the joint cavity, particularly in articular cartilage without organ toxicity and abnormality in hemogram or blood biochemistry indexes. Finally, compared with catalase (CAT), Ta-NH2 NPs exhibited long-term therapeutic effect in monosodium iodoacetate (MIA) induced osteoarthritis model. This study preliminarily explored the potential of simply modified metal nanoparticles as effective reactive oxygen species scavenging agent for osteoarthritis intervention, and offered a novel strategy to achieve sustained reactive oxygen species suppression using biocompatible Ta-based nano-medicine in oxidative stress related diseases.
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Affiliation(s)
- Yunsheng Jiang
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Tao Li
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China,State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, Institute of Combined Injury, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, China
| | - Junjun Yang
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China,Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Xin Wang
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Xiongbo Song
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Guangxing Chen
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Gang Dai
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Rong Li
- State Key Laboratory of Trauma, Burns and Combined Injury, Chongqing Engineering Research Center for Nanomedicine, Institute of Combined Injury, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing, China
| | - Chunyan Yao
- Blood Transfusion Department, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Jiajia Chen
- Biomedical Analysis Center, Third Military Medical University (Army Medical University), Chongqing, China
| | - Cheng Chen
- College of Medical Informatics, Chongqing Medical University, Chongqing, China
| | - Xiaoyuan Gong
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China,*Correspondence: Xiaoyuan Gong, ; Liu Yang,
| | - Liu Yang
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China,*Correspondence: Xiaoyuan Gong, ; Liu Yang,
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Zhang Y, Lu G, Zhou X, Cheng JH. Non-Destructive Hyperspectral Imaging for Rapid Determination of Catalase Activity and Ageing Visualization of Wheat Stored for Different Durations. Molecules 2022; 27. [PMID: 36557781 DOI: 10.3390/molecules27248648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/25/2022] [Accepted: 11/25/2022] [Indexed: 12/12/2022]
Abstract
(1) In order to accurately judge the new maturity of wheat and better serve the collection, storage, processing and utilization of wheat, it is urgent to explore a fast, convenient and non-destructively technology. (2) Methods: Catalase activity (CAT) is an important index to evaluate the ageing of wheat. In this study, hyperspectral imaging technology (850-1700 nm) combined with a BP neural network (BPNN) and a support vector machine (SVM) were used to establish a quantitative prediction model for the CAT of wheat with the classification of the ageing of wheat based on different storage durations. (3) Results: The results showed that the model of 1ST-SVM based on the full-band spectral data had the best prediction performance (R2 = 0.9689). The SPA extracted eleven characteristic bands as the optimal wavelengths, and the established model of MSC-SPA-SVM showed the best prediction result with R2 = 0.9664. (4) Conclusions: The model of MSC-SPA-SVM was used to visualize the CAT distribution of wheat ageing. In conclusion, hyperspectral imaging technology can be used to determine the CAT content and evaluate wheat ageing, rapidly and non-destructively.
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11
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Wang W, Huang W, Yu H, Tian X. Identification of Maize with Different Moldy Levels Based on Catalase Activity and Data Fusion of Hyperspectral Images. Foods 2022; 11:1727. [PMID: 35741924 DOI: 10.3390/foods11121727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/04/2022] [Accepted: 06/10/2022] [Indexed: 12/10/2022] Open
Abstract
Maize is susceptible to mold infection during growth and storage due to its large embryo and high moisture content. Therefore, it is essential to distinguish the moldy sample from healthy groups to prevent the spread of mold and avoid huger economic losses. Catalase is a metabolite in the growth of microorganisms; hence, all maize samples were accurately divided into four moldy grades (health, mild, moderate, and severe levels) by determining their catalase activity. The visible and shortwave near-infrared (Vis-SWNIR) and longwave near-infrared (LWNIR) hyperspectral images were investigated to jointly identify the moldy levels of maize. Spectra and texture information of each maize sample were extracted and used to build the classification models of maize with different moldy levels in pixel-level fusion and feature-level fusion. The result showed that the feature-level fusion of spectral and texture within Vis-SWNIR and LWNIR regions achieved the best results, overall prediction accuracy reached 95.00% for each moldy level, all healthy maize was correctly classified, and none of the moldy samples were misclassified as healthy level. This study illustrated that two hyperspectral image systems, with complementary spectral ranges, combined with feature selection and data fusion strategies, could be used synergistically to improve the classification accuracy of maize with different moldy levels.
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12
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Sunyer-Figueres M, Mas A, Beltran G, Torija MJ. Protective Effects of Melatonin on Saccharomyces cerevisiae under Ethanol Stress. Antioxidants (Basel) 2021; 10:antiox10111735. [PMID: 34829606 PMCID: PMC8615028 DOI: 10.3390/antiox10111735] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 10/21/2021] [Accepted: 10/28/2021] [Indexed: 01/15/2023] Open
Abstract
During alcoholic fermentation, Saccharomyces cerevisiae is subjected to several stresses, among which ethanol is of capital importance. Melatonin, a bioactive molecule synthesized by yeast during alcoholic fermentation, has an antioxidant role and is proposed to contribute to counteracting fermentation-associated stresses. The aim of this study was to unravel the protective effect of melatonin on yeast cells subjected to ethanol stress. For that purpose, the effect of ethanol concentrations (6 to 12%) on a wine strain and a lab strain of S. cerevisiae was evaluated, monitoring the viability, growth capacity, mortality, and several indicators of oxidative stress over time, such as reactive oxygen species (ROS) accumulation, lipid peroxidation, and the activity of catalase and superoxide dismutase enzymes. In general, ethanol exposure reduced the cell growth of S. cerevisiae and increased mortality, ROS accumulation, lipid peroxidation and antioxidant enzyme activity. Melatonin supplementation softened the effect of ethanol, enhancing cell growth and decreasing oxidative damage by lowering ROS accumulation, lipid peroxidation, and antioxidant enzyme activities. However, the effects of melatonin were dependent on strain, melatonin concentration, and growth phase. The results of this study indicate that melatonin has a protective role against mild ethanol stress, mainly by reducing the oxidative stress triggered by this alcohol.
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13
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Zhao Q, Hu R, Liu D, Liu X, Wang J, Xiang X, Li Y. The AP2 transcription factor NtERF172 confers drought resistance by modifying NtCAT. Plant Biotechnol J 2020; 18:2444-2455. [PMID: 32445603 PMCID: PMC7680539 DOI: 10.1111/pbi.13419] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 05/08/2020] [Accepted: 05/13/2020] [Indexed: 05/19/2023]
Abstract
Drought stress often limits plant growth and global crop yields. Catalase (CAT)-mediated hydrogen peroxide (H2 O2 ) scavenging plays an important role in the adaptation of plant stress responses, but the transcriptional regulation of the CAT gene in response to drought stress is not well understood. Here, we isolated an APETALA2/ETHYLENE-RESPONSIVE FACTOR (AP2/ERF) domain-containing transcription factor (TF), NtERF172, which was strongly induced by drought, abscisic acid (ABA) and H2 O2 , from tobacco (Nicotiana tabacum) by yeast one-hybrid screening. NtERF172 localized to the nucleus and acted as a transcriptional activator. Chromatin immunoprecipitation, yeast one-hybrid assays, electrophoretic mobility shift assays and transient expression analysis assays showed that NtERF172 directly bound to the promoter region of the NtCAT gene and positively regulated its expression. Transgenic plants overexpressing NtERF172 displayed enhanced tolerance to drought stress, whereas suppression of NtERF172 decreased drought tolerance. Under drought stress conditions, the NtERF172-overexpressed lines showed higher catalase activity and lower accumulation of H2 O2 compared with wild-type (WT) plants, while the NtERF172-silenced plants showed the inverse correlation. Exogenous application of amino-1,2,4-triazole (3-AT), an irreversible CAT inhibitor, to the NtERF172-overexpression lines showed decreased catalase activity and drought tolerance, and increased levels of cellular H2 O2 . Knockdown of NtCAT in the NtERF172-overexpression lines displayed a more drought stress-sensitive phenotype than NtERF172-overexpression lines. We propose that NtERF172 acts as a positive factor in drought stress tolerance, at least in part through the regulation of CAT-mediated H2 O2 homeostasis.
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Affiliation(s)
- Qiang Zhao
- College of HorticultureQingdao Agricultural UniversityQingdaoChina
| | - Ri‐Sheng Hu
- Hunan Tobacco Research InstituteChangshaHunanChina
| | - Dan Liu
- Tobacco Research InstituteChinese Academy of Agricultural SciencesQingdaoShandong ProvinceChina
| | - Xin Liu
- College of HorticultureQingdao Agricultural UniversityQingdaoChina
| | - Jie Wang
- Tobacco Research InstituteChinese Academy of Agricultural SciencesQingdaoShandong ProvinceChina
| | - Xiao‐Hua Xiang
- Haikou Cigar Research InstitutionHaikouHainan ProvinceChina
| | - Yang‐Yang Li
- Hunan Tobacco Research InstituteChangshaHunanChina
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14
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Kratasyuk VA, Stepanova LV, Ranjan R, Sutormin OS, Pande S, Zhukova GV, Miller OM, Maznyak NV, Kolenchukova OA. A noninvasive and qualitative bioluminescent assay for express diagnostics of athletes' responses to physical exertion. LUMINESCENCE 2020; 36:384-390. [PMID: 32986910 DOI: 10.1002/bio.3954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 08/10/2020] [Accepted: 09/14/2020] [Indexed: 11/08/2022]
Abstract
Upcoming professional sports authorities seek rapid noninvasive biosensing tools for regular monitoring of athletes' physiological states. The analysis of saliva through luminescence-based biosensors has been perceived as a suitable candidate for such purposes. The present study reports a qualitative bioluminescence assay based on a coupled enzyme system that consists of bacterial luciferase (BLuc) and nicotinamide adenine dinucleotide (NADH):flavin mononucleotide (FMN) oxidoreductase (Red), BLuc-Red, for the express diagnostics of athletes' stress levels before and after physical exertion. The volunteers who participated in the study were grouped as freestyle wrestlers and students who adapted to different levels of physical activities. Under physical exertion modelling conditions, the influence of participant saliva on BLuc-Red catalyzed light emission was investigated. Results showed a significant increase in residual luminescence (Iexp , mean maximum bioluminescence intensity of the experimental measurement (Iexp ); Ic , luminescence intensity in control; Iexp /Ic , %) values for participants in the wrestler group while a decrease in the student group (P < 0.05). Such contrasting residual luminescence values in both groups were found to be dependent on the catalase activity of saliva. The proposed bioluminescence assay can be utilized as a potential nonspecific biosensing tool for determining the physical state of athletes under high loads.
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Affiliation(s)
- Valentina A Kratasyuk
- Department of Biophysics, Institute of Fundamental Biology and Biotechnology, Siberian Federal University, Svobodny prospect 79, Krasnoyarsk, Russia.,Federal Research Center 'Krasnoyarsk Science Center SB RAS', Institute of Biophysics SB RAS, Akademgorodok 50/50, Krasnoyarsk, Russia
| | - Lyudmila V Stepanova
- Department of Biophysics, Institute of Fundamental Biology and Biotechnology, Siberian Federal University, Svobodny prospect 79, Krasnoyarsk, Russia
| | - Rajeev Ranjan
- Department of Biophysics, Institute of Fundamental Biology and Biotechnology, Siberian Federal University, Svobodny prospect 79, Krasnoyarsk, Russia
| | - Oleg S Sutormin
- Department of Biophysics, Institute of Fundamental Biology and Biotechnology, Siberian Federal University, Svobodny prospect 79, Krasnoyarsk, Russia
| | - Shubhra Pande
- Department of Biophysics, Institute of Fundamental Biology and Biotechnology, Siberian Federal University, Svobodny prospect 79, Krasnoyarsk, Russia.,Krasnoyarsk State Medical University named after professor V.F.Voyno-Yasenetsky of the Ministry of Health of the Russian Federation, Av. Partizan Zheleznyak 1, Krasnoyarsk, Russia
| | - Galina V Zhukova
- Department of Biophysics, Institute of Fundamental Biology and Biotechnology, Siberian Federal University, Svobodny prospect 79, Krasnoyarsk, Russia
| | - Olga M Miller
- Krasnoyarsk Maternity and Childhood Protection Center, Kirenskogo Street 2a, Krasnoyarsk, Russia
| | - Natalya V Maznyak
- School of Non-Ferrous Metals and Materials Science, Siberian Federal University, Svobodny prospect 79, Krasnoyarsk, Russia
| | - Oksana A Kolenchukova
- Department of Biophysics, Institute of Fundamental Biology and Biotechnology, Siberian Federal University, Svobodny prospect 79, Krasnoyarsk, Russia.,Scientific Research Institute of Medical Problems of the North, Av. Partizan Zheleznyak 3g, Krasnoyarsk, Russia
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15
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Pizarro BM, Cordeiro A, Reginatto MW, Campos SPC, Mancebo ACA, Areas PCF, Antunes RA, Souza MDCB, Oliveira KJ, Bloise FF, Bloise E, Fortunato RS, Ortiga-Carvalho TM. Estradiol and Progesterone Levels are Related to Redox Status in the Follicular Fluid During in vitro Fertilization. J Endocr Soc 2020; 4:bvaa064. [PMID: 32666010 PMCID: PMC7326473 DOI: 10.1210/jendso/bvaa064] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 05/29/2020] [Indexed: 02/06/2023] Open
Abstract
Studies have reported a possible association between the levels of oxidative stress biomarkers in follicular fluid (FF) and infertility treatment outcomes. FF analysis can provide important information about oocyte quality. This study aimed to evaluate the possible correlation between oxidative stress biomarker and intrafollicular hormone levels and clinical and laboratory parameters in women during controlled ovarian stimulation. These women were undergoing in vitro fertilization with intracytoplasmic sperm injection (ICSI).The FF samples were acquired from September 2012 to February 2014 from women undergoing private fertility treatment in Rio de Janeiro, Brazil. A total of 196 women who were undergoing ICSI and had different infertility diagnoses were recruited. The FF from each patient (average patient age of 36.3 ± 4.3 years) was collected following puncture of just one follicle with the largest diameter. After ruling out blood contamination by spectrophotometry, 163 patient samples were utilized in the study. In the FF, the progesterone levels were negatively correlated with (a) hydrogen peroxide scavenging capacity (HPSC) (r = −0.294, P < 0.0001), (b) total number of follicles (r = −0.246, P < 0.001) and (c) total number of oocytes punctured (r = −0.268, P = 0.0001). The concentration of serum estradiol exhibited a positive correlation with intrafollicular HPSC (r = 0.165, P = 0.037). Our data indicate that the FF levels of estradiol and progesterone are related to the FF redox status, which is closely associated with the number of oocytes obtained during ICSI procedures.
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Affiliation(s)
- Bartira Marques Pizarro
- Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Aline Cordeiro
- Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mila Weydtt Reginatto
- Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Samir P C Campos
- Institute of Medical Biochemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | - Roberto Azevedo Antunes
- Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Fertipraxis, Clinic of Human Reproduction, Rio de Janeiro, Brazil.,Maternal Hospital of the Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Karen Jesus Oliveira
- Laboratory of Endocrine Physiology and Metabolism, Physiology and Pharmacology, Federal Fluminense University, Niteroi, Brazil
| | - Flavia Fonseca Bloise
- Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Enrrico Bloise
- Department of Morphology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Rodrigo Soares Fortunato
- Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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16
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Sari R, Conterno P, da Silva LD, de Lima VA, Oldoni TLC, Thomé GR, Carpes ST. Extraction of Phenolic Compounds from Tabernaemontana catharinensis Leaves and Their Effect on Oxidative Stress Markers in Diabetic Rats. Molecules 2020; 25:E2391. [PMID: 32455579 PMCID: PMC7288081 DOI: 10.3390/molecules25102391] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 04/19/2020] [Accepted: 04/29/2020] [Indexed: 12/19/2022] Open
Abstract
The aim of this study was to evaluate the most effective extraction condition (temperature, solvent type and time) for recovery of high-value phytochemicals present in the Tabernaemontana catharinensis leaves (TC) and to assess their effect on biochemical parameters in streptozotocin-induced diabetic rats. The extraction of phenolic compounds from TC using a factorial design (FD) 2³, high performance liquid chromatography (HPLC), response surface methodology (RSM) and principal component analysis (PCA) were studied. It was found that the optimal conditions for extraction of phenolics were higher temperature (65 °C) and time (60 min) using ethanol as extractor solvent. In this condition of extraction (A8), total phenolic compounds (TPC) and antioxidant activity (AA) were determined. Additionally, this extract was used to evaluate their effect on antioxidant enzyme activities (superoxide dismutase (SOD) and catalase (CAT)) as well as lipid peroxidation (LP) and protein thiols level (PSH) in the liver and kidneys of normal and diabetic rats. As result, T. catharinensis extract presented TPC content of 23.34 mg EAG/g (equivalent gallic acid) and AA of 34.26 μmol Trolox/g. Phenolic acids (ferulic acid and coumaric acid) and flavonoids (quercetin, rutin and pinocembrin) could be recovered and identified by HPLC. This study indicated an important role of the T. catharinensis extract on free radical inactivation and on the antioxidant defense system in diabetic rats. In fact, the use of T. catharinensis extract restored the normal activity of SOD (p < 0.05) and suppressed malondialdehyde levels in liver and kidney tissues. Thus, the T. catharinensis extract, rich in phenolic compounds, can be responsible for the recover the enzymatic changes in the liver and kidney tissues provoked by diabetes in rats. In addition, the lipid peroxidation rate decreased in the diabetic rats treated with T. catharinensis.
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Affiliation(s)
| | | | | | | | | | | | - Solange Teresinha Carpes
- Department of Chemistry, Federal University of Technology—Paraná (UTFPR), P.O. Box 591, 85503-390 Pato Branco, Brazil; (R.S.); (P.C.); (L.D.d.S.); (V.A.d.L.); (T.L.C.O.); (G.R.T.)
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17
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Lu S, Liu S, Cui J, Liu X, Zhao C, Fan L, Yin S, Hu H. Combination of Patulin and Chlorpyrifos Synergistically Induces Hepatotoxicity via Inhibition of Catalase Activity and Generation of Reactive Oxygen Species. J Agric Food Chem 2019; 67:11474-11480. [PMID: 31537057 DOI: 10.1021/acs.jafc.9b04814] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Patulin (PAT) is the most common food-borne mycotoxin found in fruits and fruit-derived products, while chlorpyrifos (CPF) is a widely used pesticide on fruit and other crops. On the basis of the residue data, certain types of fruits can be contaminated simultaneously by patulin and chlorpyrifos. However, there are no available data about the combined toxicity. Since liver is a possible toxic target of both patulin and chlorpyrifos, we tested whether the combination exposure can cause enhanced hepatotoxicity using both cell culture and animal models. Results showed that the combination resulted in synergistic cytotoxicity in vitro and significantly enhanced liver toxicity in vivo. Mechanistically, PAT inhibited catalase activity via PIG3 induction, while CPF decreased catalase expression. These two mechanisms were converged in response to the combination, leading to enhanced inactivating catalase and boosted reactive oxygen species generation. The finding implicated that it is necessary to consider the combined toxicity in safety assessment of these food-borne contaminants.
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Affiliation(s)
- Shangyun Lu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, Beijing Key Laboratory for Food Non-thermal Processing , China Agricultural University , No 17, Qinghua East Road , Haidian District, Beijing 100083 , China
| | - Shuo Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, Beijing Key Laboratory for Food Non-thermal Processing , China Agricultural University , No 17, Qinghua East Road , Haidian District, Beijing 100083 , China
| | - Jinling Cui
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, Beijing Key Laboratory for Food Non-thermal Processing , China Agricultural University , No 17, Qinghua East Road , Haidian District, Beijing 100083 , China
| | - Xiaoyi Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, Beijing Key Laboratory for Food Non-thermal Processing , China Agricultural University , No 17, Qinghua East Road , Haidian District, Beijing 100083 , China
| | - Chong Zhao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, Beijing Key Laboratory for Food Non-thermal Processing , China Agricultural University , No 17, Qinghua East Road , Haidian District, Beijing 100083 , China
| | - Lihong Fan
- College of Veterinary Medicine , China Agricultural University , No. 2 Yuanmingyuan West Road , Haidian District, Beijing 100193 , China
| | - Shutao Yin
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, Beijing Key Laboratory for Food Non-thermal Processing , China Agricultural University , No 17, Qinghua East Road , Haidian District, Beijing 100083 , China
| | - Hongbo Hu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, Beijing Key Laboratory for Food Non-thermal Processing , China Agricultural University , No 17, Qinghua East Road , Haidian District, Beijing 100083 , China
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18
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Kripli B, Sólyom B, Speier G, Kaizer J. Stability and Catalase-Like Activity of a Mononuclear Non-Heme Oxoiron(IV) Complex in Aqueous Solution. Molecules 2019; 24:E3236. [PMID: 31491998 DOI: 10.3390/molecules24183236] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 09/04/2019] [Accepted: 09/05/2019] [Indexed: 01/09/2023] Open
Abstract
Heme-type catalase is a class of oxidoreductase enzymes responsible for the biological defense against oxidative damage of cellular components caused by hydrogen peroxide, where metal-oxo species are proposed as reactive intermediates. To get more insight into the mechanism of this curious reaction a non-heme structural and functional model was carried out by the use of a mononuclear complex [FeII(N4Py*)(CH3CN)](CF3SO3)2 (N4Py* = N,N-bis(2-pyridylmethyl)- 1,2-di(2-pyridyl)ethylamine) as a catalyst, where the possible reactive intermediates, high-valent FeIV=O and FeIII–OOH are known and spectroscopically well characterized. The kinetics of the dismutation of H2O2 into O2 and H2O was investigated in buffered water, where the reactivity of the catalyst was markedly influenced by the pH, and it revealed Michaelis–Menten behavior with KM = 1.39 M, kcat = 33 s−1 and k2(kcat/KM) = 23.9 M−1s−1 at pH 9.5. A mononuclear [(N4Py)FeIV=O]2+ as a possible intermediate was also prepared, and the pH dependence of its stability and reactivity in aqueous solution against H2O2 was also investigated. Based on detailed kinetic, and mechanistic studies (pH dependence, solvent isotope effect (SIE) of 6.2 and the saturation kinetics for the initial rates versus the H2O2 concentration with KM = 18 mM) lead to the conclusion that the rate-determining step in these reactions above involves hydrogen-atom transfer between the iron-bound substrate and the Fe(IV)-oxo species.
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Mardani H, Maninang J, Appiah KS, Oikawa Y, Azizi M, Fujii Y. Evaluation of Biological Response of Lettuce ( Lactuca sativa L.) and Weeds to Safranal Allelochemical of Saffron ( Crocus sativus) by Using Static Exposure Method. Molecules 2019; 24:E1788. [PMID: 31072064 PMCID: PMC6539543 DOI: 10.3390/molecules24091788] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 05/02/2019] [Accepted: 05/03/2019] [Indexed: 12/24/2022] Open
Abstract
Safranal, the main volatile chemical of Saffron (Crocus sativus) was studied to estimate its allelopathic effects on the photosynthetic pigment chlorophyll, leaf electrolyte leakage, fresh weight, catalase (CAT), and peroxidase (POX) activity of the test plant Lettuce (Lactuca sativa). In this study, the effective concentration (EC50) of safranal on CAT was estimated to be 6.12 µg/cm3. CAT activity was inhibited in a dose-dependent manner by the increase in the safranal concentration while POX activity was increased. Moreover, Safranal caused significant physiological changes in chlorophyll content, leaf electrolyte leakage, and fresh weight of several weed species with Lolium multiflorum being the most sensitive. Furthermore, 5 µM Safranal showed significant inhibitory activity against dicotyledonous in comparison to the monocotyledons under greenhouse conditions. The inhibition of the CAT by safranal was similar to those of uncompetitive inhibitors, and therefore the decline in carbon fixation by plants might be the mechanism behind the inhibitory activity of safranal.
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Affiliation(s)
- Hossein Mardani
- Department of International Environmental and Agricultural Sciences Tokyo University of Agriculture and Technology, Fuchu Campus, 2N405, 3-5-8, Saiwai-cho, Fuchu, Tokyo 183-8509, Japan.
| | - John Maninang
- Center for Global Communication Strategies (CGCS) College of Arts and Sciences,The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan.
| | - Kwame Sarpong Appiah
- Department of International Environmental and Agricultural Sciences Tokyo University of Agriculture and Technology, Fuchu Campus, 2N405, 3-5-8, Saiwai-cho, Fuchu, Tokyo 183-8509, Japan.
| | - Yosei Oikawa
- Department of International Environmental and Agricultural Sciences Tokyo University of Agriculture and Technology, Fuchu Campus, 2N405, 3-5-8, Saiwai-cho, Fuchu, Tokyo 183-8509, Japan.
| | - Majid Azizi
- Department of Horticulture, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran.
| | - Yoshiharu Fujii
- Center for Global Communication Strategies (CGCS) College of Arts and Sciences,The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan.
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20
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Hashemi S, Asrar Z, Pourseyedi S, Nadernejad N. Investigation of ZnO nanoparticles on proline, anthocyanin contents and photosynthetic pigments and lipid peroxidation in the soybean. IET Nanobiotechnol 2019; 13:66-70. [PMID: 30964040 PMCID: PMC8676270 DOI: 10.1049/iet-nbt.2018.5212] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 07/21/2018] [Accepted: 07/30/2018] [Indexed: 01/28/2023] Open
Abstract
The interaction between nanoparticles and plants is inevitable. In this study, the effect of different concentrations of ZnO nanoparticles synthesised using olive extract on the soybean was studied. The soybean seeds were cultured in a Hoagland medium containing agar which was treated different concentrations (0, 200 and 400 ppm) of ZnO nanoparticles. After 21 days, the plants were harvested and the parameters of proline, anthocyanin, malondialdehyde (MDA), hydrogen peroxide (H2O2), chlorophyll and carotenoid contents and phenylalanine ammonia-lyase (PAL) and catalase (CAT) activity in soybeans (Glycine max) were measured. The results showed that the levels of chlorophyll a and b and carotenoid at concentrations of 200 and 400 ppm in comparison with control decreased, while carotenoid content at 200 ppm concentration at a concentration of 400 ppm was not significant. The level of anthocyanin and PAL activity increased with increasing concentration of nanoparticles, while proline content decreased. By increasing the concentration of ZnO nanoparticles, the content of MDA and hydrogen peroxide increased compared to control but CAT activity did not change significantly. This research suggests that ZnO nanoparticles synthesised using olive extract in soybean plants may be toxic by reactive oxygen species production.
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Affiliation(s)
- Shahla Hashemi
- Young Researcher's Society, Shahid Bahonar University of Kerman, Kerman, Iran.
| | - Zahra Asrar
- Biology Department, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Shahram Pourseyedi
- Biotechnology Department, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Nazi Nadernejad
- Biology Department, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran
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Akacha A, Rebai T, Zourgui L, Amri M. Preventive effect of ethanolic extract of cactus ( Opuntia ficus-indica) cladodes on methotrexate-induced oxidative damage of the small intestine in Wistar rats. J Cancer Res Ther 2018; 14:S779-S784. [PMID: 30249903 DOI: 10.4103/0973-1482.174555] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Context Methotrexate (MTX) is a cytotoxic chemotherapeutic element for various inflammatory diseases. The cytotoxic effect of MTX is also seen in normal tissues having a high proliferation rate including gastrointestinal and bone marrow. Aims The aim of this study was to find out whether oxidative damage could be relevant for MTX-induced toxicity in vivo using Wistar rats and to investigate the preventive potential of cactus cladodes. Materials and Methods Adult and healthy male Wistar rats (200-250 g) were pretreated by ethanol fraction of cactus cladodes. Following a single dose of MTX (20 mg/kg), either vehicle (saline) or ethanolic (400 mg/kg) was administered intraperitoneally. All animals were killed 24 h after the intraperitoneal injection of MTX. Small intestine samples were collected for malondialdehyde (MDA) level, protein carbonyl generation, and peroxidase and catalase (CAT) activity measurement. The small intestine was also collected for histopathology analysis. Statistical Analysis Used Each experiment was conducted in triplicate separately. Values were presented as a mean ± standard deviation. Differences were considered significant at P < 0.05. Results Our results showed that MTX-induced significant alterations in oxidative stress markers noticed in the form of intestinal tissues damage, MDA level increased and protein carbonyls generation. CAT and peroxidase activities decreased with MTX administration. The combined treatment of MTX with cactus extracts showed a reduction of MTX-induced oxidative damage. Conclusions It could be concluded that cactus cladodes extract was effective in protecting the small intestine against MTX-induced damage.
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Affiliation(s)
- Amira Akacha
- Research Unit of "Valorization of Active Biomolecules", Genie Biology Department, Higher Institute of Applied Biology Medenine, University of Gabes; Research Unit of Functional Neurophysiology and Pathology, Biology Department, Faculty of Sciences Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Tarek Rebai
- Laboratory of Research on Histopathology, Histology Department, Faculty of Medicine Sfax, University Sfax, Tunis, Tunisia
| | - Lazhar Zourgui
- Research Unit of "Valorization of Active Biomolecules", Genie Biology Department, Higher Institute of Applied Biology Medenine, University of Gabes; Research Unit of Macromolecular Biochemistry and Genetics, Biology Department, Faculty of Sciences, Gafsa, University of Gafsa, Tunis, Tunisia
| | - Mohamed Amri
- Research Unit of Functional Neurophysiology and Pathology, Biology Department, Faculty of Sciences Tunis, University of Tunis El Manar, Tunis, Tunisia
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Ashu EE, Korfanty GA, Samarasinghe H, Pum N, You M, Yamamura D, Xu J. Widespread amphotericin B-resistant strains of Aspergillus fumigatus in Hamilton, Canada. Infect Drug Resist 2018; 11:1549-1555. [PMID: 30288065 PMCID: PMC6160276 DOI: 10.2147/idr.s170952] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Purpose Amphotericin B (AMB) is one of the major antifungal drugs used in the management of aspergillosis and is especially recommended for treating triazole-resistant strains of Aspergillus fumigatus. However, relatively little is known about the AMB susceptibility patterns of A. fumigatus in many parts of the world. This study aims to describe the AMB susceptibility patterns in Hamilton, Ontario, Canada. Methods The in vitro susceptibilities of 195 environmental and clinical A. fumigatus isolates to AMB were tested by the broth microdilution method as per the Clinical and Laboratory Standards Institute’s guidelines. Catalase-generated oxygen bubbles trapped by Triton X-100 were used to quantify catalase activity in a representative group of isolates. Results Of the 195 isolates, 188 (96.4%) had the minimum inhibitory concentration (MIC) of AMB ≥2 mg/L, with approximately 80% and 20% of all clinical and environmental isolates having MICs of ≥ 4 mg/L. Overall, the clinical isolates were less susceptible to AMB than environmental isolates (P-value <0.001). The strain with the highest AMB MIC (16 mg/L) had one of the highest catalase activities. However, there was no correlation between AMB MIC and catalase activity in our sample. Conclusion The widespread AMB resistance suggests that using AMB in the management of A. fumigatus infections in Hamilton would likely result in treatment failure. Although high catalase activity may have contributed to AMB resistance in some isolates, the mechanism(s) for the observed AMB resistance in Hamilton is unknown and likely complex.
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Affiliation(s)
- Eta E Ashu
- Department of Biology, McMaster University, Hamilton, ON, Canada,
| | | | | | - Nicole Pum
- Department of Biology, McMaster University, Hamilton, ON, Canada,
| | - Man You
- Department of Biology, McMaster University, Hamilton, ON, Canada,
| | - Deborah Yamamura
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - Jianping Xu
- Department of Biology, McMaster University, Hamilton, ON, Canada,
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Pan X, Xu S, Wu J, Duan Y, Zheng Z, Wang J, Song X, Zhou M. Ankyrin-Like Protein AnkB Interacts with CatB, Affects Catalase Activity, and Enhances Resistance of Xanthomonas oryzae pv. oryzae and Xanthomonas oryzae pv. oryzicola to Phenazine-1-Carboxylic Acid. Appl Environ Microbiol 2018; 84:e02145-17. [PMID: 29180371 DOI: 10.1128/AEM.02145-17] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 11/18/2017] [Indexed: 02/07/2023] Open
Abstract
Xanthomonas oryzae pv. oryzae, which causes rice bacterial leaf blight, and Xanthomonas oryzae pv. oryzicola, which causes rice bacterial leaf streak, are important plant-pathogenic bacteria. A member of the adaptor protein family, ankyrin protein, has been investigated largely in humans but rarely in plant-pathogenic bacteria. In this study, a novel ankyrin-like protein, AnkB, was identified in X. oryzae pv. oryzae and X. oryzae pv. oryzicola. The expression of ankB was significantly upregulated when these bacteria were treated with phenazine-1-carboxylic acid (PCA). ankB is located 58 bp downstream of the gene catB (which encodes a catalase) in both bacteria, and the gene expression of catB and catalase activity were reduced following ankB deletion in X. oryzae pv. oryzae and X. oryzae pv. oryzicola. Furthermore, we demonstrated that AnkB directly interacts with CatB by glutathione S-transferase (GST) pulldown assays. Deletion of ankB increased the sensitivity of X. oryzae pv. oryzae and X. oryzae pv. oryzicola to H2O2 and PCA, decreased bacterial biofilm formation, swimming ability, and exopolysaccharide (EPS) production, and also reduced virulence on rice. Together our results indicate that the ankyrin-like protein AnkB has important and conserved roles in antioxidant systems and pathogenicity in X. oryzae pv. oryzae and X. oryzae pv. oryzicola.IMPORTANCE This study demonstrates that the ankyrin protein AnkB directly interacts with catalase CatB in Xanthomonas oryzae pv. oryzae and Xanthomonas oryzae pv. oryzicola. Ankyrin protein AnkB can affect the gene expression of catB, catalase activity, and sensitivity to H2O2 In Xanthomonas spp., the locations of genes ankB and catB and the amino acid sequence of AnkB are highly conserved. It is suggested that in prokaryotes, AnkB plays a conserved role in the defense against oxidative stress.
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Muraoka S, Nitta Y, Yamada T, Sakuma Y, Ichimura A, Sakurai K. Increase of Anti-oxidative Capacity during Differentiation of 3T3-L1 Preadipocytes into Adipocytes. YAKUGAKU ZASSHI 2017; 137:1137-1145. [PMID: 28867700 DOI: 10.1248/yakushi.17-00018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Cells have developed ingenious defense mechanisms in response to oxidative stress. Here, we evaluated changes in anti-oxidative capacity during differentiation of 3T3-L1 preadipocytes into adipocytes. When 3T3-L1 preadipocytes were treated with H2O2 (0.10-2.0 mM) for 21 h, cell viability decreased in response to H2O2 concentration, with an LD50 of approximately 0.35 mM H2O2. In the cells undergoing differentiation at 2 and 6 d, LD50 increased to 1.0 and >2.0 mM H2O2, respectively. These results indicate that resistance to oxidative stress dramatically increased with progression of differentiation of preadipocytes into adipocytes. Catalase activity and GSH content increased in the differentiated cells at 6 d, whereas superoxide dismutase and glutathione peroxidase activities were slightly lower in adipocytes than in preadipocytes. Moreover, knockdown of catalase or depletion of intracellular GSH enhanced the sensitivity to H2O2. When GSH was added to the cells depleted of intracellular GSH, the antioxidant capacity recovered. Autophagy was increased in differentiated adipocytes but was not affected by H2O2 treatment. Therefore, these results suggest that the increase in intracellular catalase activity and GSH content played a role in the increased anti-oxidative capacity of differentiated 3T3-L1 adipocytes.
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Affiliation(s)
- Sanae Muraoka
- Department of Life Science, Hokkaido Pharmaceutical University School of Pharmacy
| | - Yuuki Nitta
- Department of Life Science, Hokkaido Pharmaceutical University School of Pharmacy
| | - Taiki Yamada
- Department of Life Science, Hokkaido Pharmaceutical University School of Pharmacy
| | - Yuusuke Sakuma
- Department of Life Science, Hokkaido Pharmaceutical University School of Pharmacy
| | - Aoi Ichimura
- Department of Life Science, Hokkaido Pharmaceutical University School of Pharmacy
| | - Koichi Sakurai
- Department of Life Science, Hokkaido Pharmaceutical University School of Pharmacy
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Li S, Li J, Yuan J, Li G, Zang B, Li Y. The influences of inoculants from municipal sludge and solid waste on compost stability, maturity and enzyme activities during chicken manure composting. Environ Technol 2017; 38:1770-1778. [PMID: 28278782 DOI: 10.1080/09593330.2017.1291755] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 01/31/2017] [Indexed: 06/06/2023]
Abstract
The aim of this study was to investigate the influence of inoculants on compost stability, maturity and enzyme activities during composting of chicken manure and cornstalk. Two microbial inoculants (originated from aerobic municipal sludge and municipal solid waste, respectively) were used in composting at the rate of 0.3% of initial raw materials (wet weight). No microbial inoculums were added to the control. The experiment was conducted under aerobic conditions for 53 days. The results show that enzyme activity is an important index to comprehensively evaluate the composting stability and maturity. Microbes originated from sludge works best in terms of composting stability and maturity (C:N ratio decreased from 15.5 to 10, and germination index increased to 109%). Microbial inoculums originated from sludge and municipal solid waste extended the time of thermophilic phase for 11 and 7 days, respectively. Microbial inoculums originated from sludge and MSW significantly increased the average of catalase activity (by 15.0% and 12.1%, respectively), urease activity (by 21.5% and 12.2%, respectively) and cellulase activity (by 32.1% and 26.1%, respectively) during composting.
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Affiliation(s)
- Shuyan Li
- a College of Resources and Environmental Sciences , China Agricultural University , Beijing , People's Republic of China
| | - Jijin Li
- b Institute of Plant Nutrition and Resources , Beijing Academy of Agriculture and Forestry Sciences , Beijing , People's Republic of China
| | - Jing Yuan
- a College of Resources and Environmental Sciences , China Agricultural University , Beijing , People's Republic of China
| | - Guoxue Li
- a College of Resources and Environmental Sciences , China Agricultural University , Beijing , People's Republic of China
| | - Bing Zang
- a College of Resources and Environmental Sciences , China Agricultural University , Beijing , People's Republic of China
| | - Yangyang Li
- a College of Resources and Environmental Sciences , China Agricultural University , Beijing , People's Republic of China
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Giri TK, Pramanik K, Barman TK, Maity S. Nano-encapsulation of Dietary Phytoconstituent Capsaicin on Emulsome: Evaluation of Anticancer Activity Through the Measurement of Liver Oxidative Stress in Rats. Anticancer Agents Med Chem 2017; 17:1669-1678. [PMID: 28425858 DOI: 10.2174/1871520617666170419121322] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 01/31/2017] [Accepted: 04/05/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND Excessive reactive species derived from oxygen and nitrogen leads to oxidative damage to tissue and organs. Capsaicin (CAP), a pungent component found in red pepper can prevent oxidative stress. OBJECTIVE The aim of the present work was to evaluate the protective effects of CAP loaded nano-emulsomes (EML) against the oxidative stress of rat livers induced through sodium fluoride (NaF). METHOD EML was prepared by thin film hydration method that is development of thin lipid film followed by hydration and sonication. EML was characterized by Fourier transform infrared (FT-IR) spectroscopy and X-ray diffraction (XRD) techniques. EML was evaluated for drug entrapment, in vitro drug release, and in vivo study. RESULTS In vitro drug release study of optimized formulation showed that 50% of CAP was released within 50.21 min while 85% CAP was released in 227.4 min. Single oral dose of free CAP and CAP loaded EML were given to rats 2 hour after NaF administration. Membrane of hepatic cells was damaged by NaF and it was judged by the estimation of lipid peroxidation, reactive oxygen species (ROS), and catalase activity. The administration of CAP loaded EML 2 hr after NAF consumption showed significant decrease in ROS level compared to free CAP. EML containing CAP was more effective in comparison to free CAP in controlling the lipid peroxidation that is thiobarbituric acid substance augmentation in liver by the treatment of NaF. The administration of CAP loaded EML showed significant increase in catalase activity compared to free CAP administration. CONCLUSION The results clearly demonstrated that CAP loaded EML may be accepted as an effective therapeutic formulation in preventing oxidative damage.
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Affiliation(s)
- Tapan K Giri
- NSHM College of Pharmaceutical Technology, NSHM Knowledge Campus, Kolkata Group of Institutions, 124 BL Saha Road, Kolkata-700053, West Bengal. India
| | - Kaustav Pramanik
- NSHM College of Pharmaceutical Technology, NSHM Knowledge Campus, Kolkata Group of Institutions, 124 BL Saha Road, Kolkata-700053, West Bengal. India
| | - Tapan K Barman
- NSHM College of Pharmaceutical Technology, NSHM Knowledge Campus, Kolkata Group of Institutions, 124 BL Saha Road, Kolkata-700053, West Bengal. India
| | - Subhasis Maity
- NSHM College of Pharmaceutical Technology, NSHM Knowledge Campus, Kolkata Group of Institutions, 124 BL Saha Road, Kolkata-700053, West Bengal. India
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Mota Ferreira L, Gehrcke M, Ferrari Cervi V, Eliete Rodrigues Bitencourt P, Ferreira da Silveira E, Hofstatter Azambuja J, Prates Ramos A, Nascimento K, Beatriz Moretto M, Braganhol E, Rorato Sagrillo M, Cruz L. Pomegranate seed oil nanoemulsions with selective antiglioma activity: optimization and evaluation of cytotoxicity, genotoxicity and oxidative effects on mononuclear cells. Pharm Biol 2016; 54:2968-2977. [PMID: 27357525 DOI: 10.1080/13880209.2016.1199039] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 04/27/2016] [Accepted: 06/04/2016] [Indexed: 06/06/2023]
Abstract
CONTEXT Glioma is a malignant brain tumor with rapid proliferation, infiltrative growth, poor prognosis and it is chemoresistent. Pomegranate seed oil (PSO) has antioxidant, anti-inflammatory and antitumor properties. This study showed the optimization of PSO nanoemulsions (NEs) as an alternative for glioma treatment. OBJECTIVE The study aimed to evaluate PSO NEs cytotoxicity on human blood cells and antiglioma effects against C6 cells. MATERIALS AND METHODS NEs were prepared by the spontaneous emulsification method, using PSO at 1.5 and 3.0%, and were evaluated regarding their physical stability and antioxidant activity. Toxicity evaluations in human blood cells were performed in terms of cell viability, genotoxicity, lipid peroxidation, protein carbonylation, catalase activity and hemolysis at 0.1, 0.25 and 0.5 mg/mL PSO, after a 72-h incubation period. In vitro antitumor effect was determined against glioma cells after 24 and 48 h, and astrocytes were used as a non-transformed cell model. RESULTS Formulations presented droplet size below 250 nm, low polydispersity index, negative zeta potential and pH in the acid range. NEs and PSO had scavenging capacity around 30% and promoted a proliferative effect in mononuclear cells, increasing about 50% cell viability. No genotoxic and oxidative damage was observed in lipid peroxidation, protein carbonylation and catalase activity evaluations for NEs. Hemolysis study showed a hemolytic effect at high concentrations. Moreover, formulations reduced only tumor cell viability to 47%, approximately. DISCUSSION AND CONCLUSION Formulations are adequate and safe for intravenous administration. Besides, in vitro antitumor activity indicates that NEs are promising for glioma treatment.
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Affiliation(s)
- Luana Mota Ferreira
- a Programa de Pós-graduação em Ciências Farmacêuticas , Centro de Ciências da Saúde, Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Mailine Gehrcke
- a Programa de Pós-graduação em Ciências Farmacêuticas , Centro de Ciências da Saúde, Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Verônica Ferrari Cervi
- a Programa de Pós-graduação em Ciências Farmacêuticas , Centro de Ciências da Saúde, Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Paula Eliete Rodrigues Bitencourt
- a Programa de Pós-graduação em Ciências Farmacêuticas , Centro de Ciências da Saúde, Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Elita Ferreira da Silveira
- b Programa de Pós-Graduação em Bioquímica e Bioprospecção , Centro de Ciências Químicas, Farmacêuticas e de Alimentos , Pelotas , Brazil
| | - Juliana Hofstatter Azambuja
- b Programa de Pós-Graduação em Bioquímica e Bioprospecção , Centro de Ciências Químicas, Farmacêuticas e de Alimentos , Pelotas , Brazil
| | - Andiara Prates Ramos
- c Curso de Biomedicina , Centro Universitário Franciscano , Santa Maria , Brazil
| | - Kátia Nascimento
- c Curso de Biomedicina , Centro Universitário Franciscano , Santa Maria , Brazil
| | - Maria Beatriz Moretto
- a Programa de Pós-graduação em Ciências Farmacêuticas , Centro de Ciências da Saúde, Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Elizandra Braganhol
- b Programa de Pós-Graduação em Bioquímica e Bioprospecção , Centro de Ciências Químicas, Farmacêuticas e de Alimentos , Pelotas , Brazil
| | | | - Letícia Cruz
- a Programa de Pós-graduação em Ciências Farmacêuticas , Centro de Ciências da Saúde, Universidade Federal de Santa Maria , Santa Maria , Brazil
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Baños-Gómez R, Cruz-Cansino NS, Suarez-Diéguez T, Valadez-Vega C, Ramírez-Moreno E, Alanís-García E, Ariza-Ortega JA, Manríquez-Torres JJ, Zamora-Romo E, Delgado-Olivares L. Undernutrition in the parental and first generation provokes an organ-specific response to oxidative stress on neonates of second filial generation of Wistar rats. J Anim Physiol Anim Nutr (Berl) 2016; 101:267-274. [PMID: 27561464 DOI: 10.1111/jpn.12590] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 07/29/2016] [Indexed: 12/26/2022]
Abstract
Undernutrition induces an increase of the oxidative stress that can predispose offspring to various diseases in adulthood through epigenetic reprogramming. The aim of this study was to evaluate the effects of intergenerational undernutrition on protein oxidation and antioxidant defence response on liver, heart and brain of the second-generation neonates (F2 ) of undernourished rats. For this purpose, both parents in parental (F0 ) and first generation (F1 ) were fed with a low-nutrient diet. Body mass and length decreased (p < 0.05) in F0 , F1 and F2 being the F1 males who exhibited a greater mass loss. A decrease in plasma albumin concentration was observed in F2 neonates (p < 0.05) and also a mass loss of liver, heart and brain (p < 0.05), although proportionally to body length reduction. Undernutrition increased levels of protein oxidation in liver and heart (p < 0.05) but not in brain (p > 0.05) while catalase activity increased only in brain (p < 0.05). In summary, intergenerational undernutrition modifies the antioxidant status through an organ-specific response, on F2 neonate rats, where the brain increased catalase activity to prevent a severe oxidative damage and support the vital functions of this key organ to maintain vital functions.
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Affiliation(s)
- R Baños-Gómez
- Área Académica de Nutrición, Centro de Investigación Interdisciplinario, Instituto de Ciencias de la Salud, Universidad Autónoma del Estado de Hidalgo, Pachuca, Hidalgo, México
| | - N S Cruz-Cansino
- Área Académica de Nutrición, Centro de Investigación Interdisciplinario, Instituto de Ciencias de la Salud, Universidad Autónoma del Estado de Hidalgo, Pachuca, Hidalgo, México
| | - T Suarez-Diéguez
- Área Académica de Nutrición, Centro de Investigación Interdisciplinario, Instituto de Ciencias de la Salud, Universidad Autónoma del Estado de Hidalgo, Pachuca, Hidalgo, México
| | - C Valadez-Vega
- Área Académica de Medicina, Centro de Investigación Interdisciplinario, Instituto de Ciencias de la Salud, Universidad Autónoma del Estado de Hidalgo, Pachuca, Hidalgo, México
| | - E Ramírez-Moreno
- Área Académica de Nutrición, Centro de Investigación Interdisciplinario, Instituto de Ciencias de la Salud, Universidad Autónoma del Estado de Hidalgo, Pachuca, Hidalgo, México
| | - E Alanís-García
- Área Académica de Nutrición, Centro de Investigación Interdisciplinario, Instituto de Ciencias de la Salud, Universidad Autónoma del Estado de Hidalgo, Pachuca, Hidalgo, México
| | - J A Ariza-Ortega
- Área Académica de Nutrición, Centro de Investigación Interdisciplinario, Instituto de Ciencias de la Salud, Universidad Autónoma del Estado de Hidalgo, Pachuca, Hidalgo, México
| | - J J Manríquez-Torres
- Área Académica de Nutrición, Centro de Investigación Interdisciplinario, Instituto de Ciencias de la Salud, Universidad Autónoma del Estado de Hidalgo, Pachuca, Hidalgo, México
| | - E Zamora-Romo
- Unidad PET/CT Ciclotrón, Edificio de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad Universitaria, México city, México
| | - L Delgado-Olivares
- Área Académica de Nutrición, Centro de Investigación Interdisciplinario, Instituto de Ciencias de la Salud, Universidad Autónoma del Estado de Hidalgo, Pachuca, Hidalgo, México
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Karadas S, Aslan M, Ceylan MR, Sunnetcioglu M, Bozan N, Kara H, Demir H. Serum paraoxonase activity and oxidative stress levels in patients with cutaneous anthrax. Hum Exp Toxicol 2016; 36:663-669. [PMID: 27461010 DOI: 10.1177/0960327116661020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
INTRODUCTION Anthrax is a bacterial disease caused by the aerobic sporeforming bacterium Bacillus anthracis. It has been suggested that oxidative stress plays an important role in the pathogenesis of B. anthracis. The aim of this study was to investigate serum paraoxonase 1 (PON1) activity, catalase activity, malondialdehyde (MDA) levels, and superoxide dismutase (SOD) levels in patients with cutaneous anthrax. MATERIALS AND METHODS Fifteen patients with cutaneous anthrax and 15 healthy controls were enrolled in this study. The serum MDA levels, SOD levels, paraoxonase, arylesterase, and catalase activities were measured using a spectrophotometer. RESULTS The serum SOD levels, paraoxonase, arylesterase, and catalase activities were significantly lower in patients with cutaneous anthrax than in controls (for all, p < 0.001), whereas MDA levels were significantly higher ( p < 0.001). No significant correlation was found between serum paraoxonase activity, arylesterase activity, SOD levels, and MDA levels (all, p > 0.05) in patients with cutaneous anthrax. CONCLUSIONS The current study was the first to show decreased antioxidant levels and increased oxidant levels in patients with cutaneous anthrax. Therefore, decreased PON1 activity may play a role in the pathogenesis of cutaneous anthrax.
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Affiliation(s)
- S Karadas
- 1 Department of Emergency Medicine, Faculty of Medical, Yuzuncu Yıl University, Van, Turkey
| | - M Aslan
- 2 Department of Internal Medicine, Faculty of Medical, Yuzuncu Yıl University, Van, Turkey
| | - M R Ceylan
- 3 Department of Infectious Disease and Clinical Microbiology, Faculty of Medical, Yuzuncu Yıl University, Van, Turkey
| | - M Sunnetcioglu
- 3 Department of Infectious Disease and Clinical Microbiology, Faculty of Medical, Yuzuncu Yıl University, Van, Turkey
| | - N Bozan
- 4 Department of Otorhinolaryngology, Faculty of Medical, Yuzuncu Yıl University, Van, Turkey
| | - H Kara
- 1 Department of Emergency Medicine, Faculty of Medical, Yuzuncu Yıl University, Van, Turkey
| | - H Demir
- 5 Department of Chemistry, Faculty of Science and Art, Yuzuncu Yıl University, Van, Turkey
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Jeong SW, Seo HS, Kim MK, Choi JI, Lim HM, Lim S. PprM is necessary for up-regulation of katE1, encoding the major catalase of Deinococcus radiodurans, under unstressed culture conditions. J Microbiol 2016; 54:426-31. [PMID: 27225459 DOI: 10.1007/s12275-016-6175-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 05/19/2016] [Accepted: 05/19/2016] [Indexed: 01/07/2023]
Abstract
Deinococcus radiodurans is a poly-extremophilic organism, capable of tolerating a wide variety of different stresses, such as gamma/ultraviolet radiation, desiccation, and oxidative stress. PprM, a cold shock protein homolog, is involved in the radiation resistance of D. radiodurans, but its role in the oxidative stress response has not been investigated. In this study, we investigated the effect of pprM mutation on catalase gene expression. pprM disruption decreased the mRNA and protein levels of KatE1, which is the major catalase in D. radiodurans, under normal culture conditions. A pprM mutant strain (pprM MT) exhibited decreased catalase activity, and its resistance to hydrogen peroxide (H2O2) decreased accordingly compared with that of the wild-type strain. We confirmed that RecG helicase negatively regulates katE1 under normal culture conditions. Among katE1 transcriptional regulators, the positive regulator drRRA was not altered in pprM (-), while the negative regulators perR, dtxR, and recG were activated more than 2.5-fold in pprM MT. These findings suggest that PprM is necessary for KatE1 production under normal culture conditions by down-regulation of katE1 negative regulators.
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Affiliation(s)
- Sun-Wook Jeong
- Research Division for Biotechnology, Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea.,Department of Biological Sciences, College of Biological Sciences and Biotechnology, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Ho Seong Seo
- Research Division for Biotechnology, Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea
| | - Min-Kyu Kim
- Research Division for Biotechnology, Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea
| | - Jong-Il Choi
- Department of Biotechnology and Bioengineering, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Heon-Man Lim
- Department of Biological Sciences, College of Biological Sciences and Biotechnology, Chungnam National University, Daejeon, 34134, Republic of Korea.
| | - Sangyong Lim
- Research Division for Biotechnology, Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea.
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Wang SH, Lim JH, Kim SS, Cho SH, Yoo SC, Koh HJ, Sakuraba Y, Paek NC. Mutation of SPOTTED LEAF3 (SPL3) impairs abscisic acid-responsive signalling and delays leaf senescence in rice. J Exp Bot 2015; 66:7045-59. [PMID: 26276867 PMCID: PMC4765782 DOI: 10.1093/jxb/erv401] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Lesion mimic mutants commonly display spontaneous cell death in pre-senescent green leaves under normal conditions, without pathogen attack. Despite molecular and phenotypic characterization of several lesion mimic mutants, the mechanisms of the spontaneous formation of cell death lesions remain largely unknown. Here, the rice lesion mimic mutant spotted leaf3 (spl3) was examined. When grown under a light/dark cycle, the spl3 mutant appeared similar to wild-type at early developmental stages, but lesions gradually appeared in the mature leaves close to heading stage. By contrast, in spl3 mutants grown under continuous light, severe cell death lesions formed in developing leaves, even at the seedling stage. Histochemical analysis showed that hydrogen peroxide accumulated in the mutant, likely causing the cell death phenotype. By map-based cloning and complementation, it was shown that a 1-bp deletion in the first exon of Oryza sativa Mitogen-Activated Protein Kinase Kinase Kinase1 (OsMAPKKK1)/OsEDR1/OsACDR1 causes the spl3 mutant phenotype. The spl3 mutant was found to be insensitive to abscisic acid (ABA), showing normal root growth in ABA-containing media and delayed leaf yellowing during dark-induced and natural senescence. Expression of ABA signalling-associated genes was also less responsive to ABA treatment in the mutant. Furthermore, the spl3 mutant had lower transcript levels and activities of catalases, which scavenge hydrogen peroxide, probably due to impairment of ABA-responsive signalling. Finally, a possible molecular mechanism of lesion formation in the mature leaves of spl3 mutant is discussed.
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Affiliation(s)
- Seung-Hyun Wang
- Department of Plant Science, Plant Genomics and Breeding Institute, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 151-921, Korea
| | - Jung-Hyun Lim
- Department of Plant Science, Plant Genomics and Breeding Institute, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 151-921, Korea
| | - Sang-Sook Kim
- Department of Plant Science, Plant Genomics and Breeding Institute, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 151-921, Korea
| | - Sung-Hwan Cho
- Department of Plant Science, Plant Genomics and Breeding Institute, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 151-921, Korea
| | - Soo-Cheul Yoo
- Department of Plant Life and Environmental Science, Hankyong National University, Ansung 456-749, Korea
| | - Hee-Jong Koh
- Department of Plant Science, Plant Genomics and Breeding Institute, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 151-921, Korea
| | - Yasuhito Sakuraba
- Department of Plant Science, Plant Genomics and Breeding Institute, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 151-921, Korea
| | - Nam-Chon Paek
- Department of Plant Science, Plant Genomics and Breeding Institute, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 151-921, Korea Crop Biotechnology Institute, GreenBio Science and Technology, Seoul National University, Pyeongchang 232-916, Korea
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Kubota R, Imamura S, Shimizu T, Asayama S, Kawakami H. Synthesis of water-soluble dinuclear mn-porphyrin with multiple antioxidative activities. ACS Med Chem Lett 2014; 5:639-43. [PMID: 24944735 DOI: 10.1021/ml400493f] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 03/27/2014] [Indexed: 01/08/2023] Open
Abstract
Superoxide dismutase (SOD) and catalase activities of a drug are of great importance for its effective protection against reactive oxygen species (ROS)-induced injury. Achievement of catalase activity of a synthetic compound remains a challenge. Water-soluble Mn-porphyrins have high SOD and peroxynitrite (ONOO(-)) reducing activities, but not catalase-like activity. Herein, we are able to retain the fair SOD-like activity of a mononuclear Mn-5-(N-methylpyridinium-4-yl)-10,15,20-triphenyl porphyrin (MnM4PyP3P), while gaining in catalase-like activity with its dinuclear complex, 1,3-di[5-(N-methylene-pyridinium-4-yl)-10,15,20-triphenyl porphynato manganese] benzene tetrachloride (MnPD). Mechanistic study indicates that catalase-like activity of MnPD is due to synergism of two Mn active sites, where hydroxo-Mn(IV) complex is formed as an intermediate. The in vivo experiments demonstrate that MnPD significantly restores the treadmill-running ability of SOD-deficient mouse and thus indicates the therapeutic potential of MnPD. Furthermore, MnPD may serve as a mechanistic tool and indicate the new directions in the synthesis of catalase-like mimics.
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Affiliation(s)
- Riku Kubota
- Department
of Applied Chemistry, Tokyo Metropolitan University, Minami-Osawa
1-1, Hachioji, Tokyo 192-0397, Japan
| | - Shinya Imamura
- Department
of Applied Chemistry, Tokyo Metropolitan University, Minami-Osawa
1-1, Hachioji, Tokyo 192-0397, Japan
| | - Takahiko Shimizu
- Department
of Advanced Aging Medicine, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Shoichiro Asayama
- Department
of Applied Chemistry, Tokyo Metropolitan University, Minami-Osawa
1-1, Hachioji, Tokyo 192-0397, Japan
| | - Hiroyoshi Kawakami
- Department
of Applied Chemistry, Tokyo Metropolitan University, Minami-Osawa
1-1, Hachioji, Tokyo 192-0397, Japan
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Saraf S, Neal CJ, Das S, Barkam S, McCormack R, Seal S. Understanding the adsorption interface of polyelectrolyte coating on redox active nanoparticles using soft particle electrokinetics and its biological activity. ACS Appl Mater Interfaces 2014; 6:5472-82. [PMID: 24673655 PMCID: PMC4004264 DOI: 10.1021/am405250g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Accepted: 03/27/2014] [Indexed: 06/03/2023]
Abstract
The application of cerium oxide nanoparticles (CNPs) for therapeutic purposes requires a stable dispersion of nanoparticles in a biological environment. The objective of this study is to tailor the properties of polyelectrolyte coated CNPs as a function of molecular weight to achieve a stable and catalytic active dispersion. The coating of CNPs with polyacrylic acid (PAA) has increased the dispersion stability of CNPs and enhanced the catalytic ability. The stability of PAA coating was analyzed using the change in the Gibbs free energy computed by the Langmuir adsorption model. The adsorption isotherms were determined using soft particle electrokinetics which overcomes the challenges presented by other techniques. The change in Gibbs free energy was highest for CNPs coated with PAA of 250 kg/mol indicating the most stable coating. The change in free energy for PAA of 100 kg/mol coated CNPs was 85% lower than the PAA of 250 kg/mol coated CNPs. This significant difference is caused by the strong adsorption of PAA of 100 kg/mol on CNPs. Catalytic activity of PAA-CNPs is assessed by the catalase enzymatic mimetic activity of nanoparticles. The catalase activity was higher for PAA coated CNPs as compared to bare CNPs which indicated preferential adsorption of hydrogen peroxide induced by coating. This indicates that the catalase activity is also affected by the structure of the coating layer.
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Affiliation(s)
- Shashank Saraf
- Advanced Materials Processing and Analysis
Center (AMPAC), Materials Science Engineering (MSE), University of Central Florida, 4000 Central Florida Boulevard, Orlando, Florida 32816, United States
| | - Craig J. Neal
- Advanced Materials Processing and Analysis
Center (AMPAC), Materials Science Engineering (MSE), University of Central Florida, 4000 Central Florida Boulevard, Orlando, Florida 32816, United States
| | - Soumen Das
- Advanced Materials Processing and Analysis
Center (AMPAC), Materials Science Engineering (MSE), University of Central Florida, 4000 Central Florida Boulevard, Orlando, Florida 32816, United States
| | - Swetha Barkam
- Advanced Materials Processing and Analysis
Center (AMPAC), Materials Science Engineering (MSE), University of Central Florida, 4000 Central Florida Boulevard, Orlando, Florida 32816, United States
| | - Rameech McCormack
- Advanced Materials Processing and Analysis
Center (AMPAC), Materials Science Engineering (MSE), University of Central Florida, 4000 Central Florida Boulevard, Orlando, Florida 32816, United States
| | - Sudipta Seal
- Advanced Materials Processing and Analysis
Center (AMPAC), Materials Science Engineering (MSE), University of Central Florida, 4000 Central Florida Boulevard, Orlando, Florida 32816, United States
- NanoScience Technology Center (NSTC), Materials
Science Engineering (MSE), University of
Central Florida, 4000
Central Florida Boulevard, Orlando, Florida 32816, United
States
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Wang DH, Masuoka N, Kira S. Animal model for oxidative stress research-Catalase mutant mice. Environ Health Prev Med 2003; 8:37-40. [PMID: 21432086 DOI: 10.1007/BF02897924] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2002] [Accepted: 02/17/2003] [Indexed: 10/22/2022] Open
Abstract
Catalase-deficient mouse strains was initially established by Feinstein et al. through a large scale screening of the progeny of irradiated C3H mice in 1966. Later, Feinstein provided the mice of catalase mutant strain C3H/AnICs(a)Cs(a) (wild-type), C3H/AnICs(b)Cs(b) and C3H/AnlCs(c)Cs(c) to Okayama University Medical School in Japan. It is known that a point mutation at amino acid 11 (from glutamine to histidine) of acatalasemic mouse catalase and a point mutation at amino acid 439 (from as paragine to serine) of hypocatalasemic mouse catalase are responsible for the catalase deficiency of acatalasemic and hypocatalasemic mice, respectively. Recently, a liver cell line from an acatalasemic mouse andEscherichia coli (E. coli) strains with murine normal, hypocatalasemic, or acatalasemic catalase have been established. The construction of these new systems would be useful for studying the effects of oxidative stress at the cellular level. In this review, we give a brief overview of recent findings of studies in utilizing the catalase-deficient mice and evaluate the possibility of these mouse strains as a candidate animal model for oxidative stress research.
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Abstract
We found that rats subjected to thermal skin injury (burn) had increased serum hydrogen peroxide (H2O2) scavenging activity, serum catalase activity, erythrocyte (RBC) fragility, and edematous lung injury (lung leak) when compared to sham-treated rats. Serum H2O2 scavenging activity was inhibited by addition of sodium azide, a catalase inhibitor. Treatment of rats with the oxygen radical scavenger, dimethylthiourea (DMTU), decreased RBC fragility and lung leak but did not alter increased H2O2 scavenging or catalase activity of serum from rats subjected to skin burn. We conclude that increased serum catalase activity is a consequence of thermal skin injury and that increased serum catalase activity may be a mechanism that modulates H2O2-dependent processes following skin burn.
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Affiliation(s)
- J A Leff
- Webb-Waring Lung Institute, University of Colorado Health Sciences Center, Denver 80262
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Korkeala H, Sankari S. The effect of catalase on the toxicity of cadmium in cadmium-sensitive and cadmium-resistant Staphylococcus aureus. Acta Vet Scand 1980; 21:209-23. [PMID: 6994462 PMCID: PMC8317745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The effect of catalase on the toxicity of cadmium (Cd) in Cd-resistant Staphylococcus aureus 3719+ and its plasmid-negative Cd-sensitive variant 3719– was studied. Catalase on a solid medium increased the recovery of Gd-stressed S. aureus 3719– cells, and the addition of catalase into a liquid growth medium resulted in a shortened lag phase of growth especially in S. aureus 3719–. The catalase activity of S. aureus 3719+ cell suspensions was greater than the corresponding activity of S. aureus 3719– cell suspensions. Cd did not influence the activity of beef liver catalase or the catalase production of the bacterial cells. Catalase reduced the toxicity of Cd especially for S. aureus 3719–. The greater catalase production of S. aureus 3719+ might be one factor in its resistance against the toxic effects of Cd. It is suggested that Cd together with hydrogen peroxide may induce oxidative damage to cells if there is not sufficient catalase available to decompose all the hydrogen peroxide formed.
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