201
|
Masheta DQ, Al-Azzawi SK. Antioxidant and Anti-Inflammatory Effects of Delphinidin on Glial Cells and Lack of Effect on Secretase Enzyme. ACTA ACUST UNITED AC 2018. [DOI: 10.1088/1757-899x/454/1/012061] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
202
|
Chung Y, Lee J, Jung S, Lee Y, Cho JW, Oh YJ. Dysregulated autophagy contributes to caspase-dependent neuronal apoptosis. Cell Death Dis 2018; 9:1189. [PMID: 30538224 PMCID: PMC6289995 DOI: 10.1038/s41419-018-1229-y] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 10/29/2018] [Accepted: 11/20/2018] [Indexed: 02/08/2023]
Abstract
Autophagy is a regulated, intracellular degradation process that delivers unnecessary or dysfunctional cargo to the lysosome. Autophagy has been viewed as an adaptive survival response to various stresses, whereas in other cases, it promotes cell death. Therefore, both deficient and excessive autophagy may lead to cell death. In this study, we specifically attempted to explore whether and how dysregulated autophagy contributes to caspase-dependent neuronal cell death induced by the neurotoxin 6-hydroxydopamine (6-OHDA). Ultrastructural and biochemical analyses indicated that MN9D neuronal cells and primary cultures of cortical neurons challenged with 6-OHDA displayed typical features of autophagy. Cotreatment with chloroquine and monitoring autophagic flux by a tandem mRFP-EGFP-tagged LC3 probe indicated that the autophagic phenomena were primarily caused by dysregulated autophagic flux. Consequently, cotreatment with an antioxidant but not with a pan-caspase inhibitor significantly blocked 6-OHDA-stimulated dysregulated autophagy. These results indicated that 6-OHDA-induced generation of reactive oxygen species (ROS) played a critical role in triggering neuronal death by causing dysregulated autophagy and subsequent caspase-dependent apoptosis. The results of the MTT reduction, caspase-3 activation, and TUNEL assays indicated that pharmacological inhibition of autophagy using 3-methyladenine or deletion of the autophagy-related gene Atg5 significantly inhibited 6-OHDA-induced cell death. Taken together, our results suggest that abnormal induction of autophagic flux promotes apoptotic neuronal cell death, and that the treatments limiting dysregulated autophagy may have a strong neuroprotective potential.
Collapse
Affiliation(s)
- Yuhyun Chung
- Department of Systems Biology, Yonsei University College of Life Science and Biotechnology, Seoul, 120-749, South Korea
| | - Juhyung Lee
- Department of Systems Biology, Yonsei University College of Life Science and Biotechnology, Seoul, 120-749, South Korea
| | - Shinae Jung
- Department of Systems Biology, Yonsei University College of Life Science and Biotechnology, Seoul, 120-749, South Korea
| | - Yangsin Lee
- Glycosylation Network Research Center, Yonsei University, Seoul, 120-749, South Korea
| | - Jin Won Cho
- Department of Systems Biology, Yonsei University College of Life Science and Biotechnology, Seoul, 120-749, South Korea.,Glycosylation Network Research Center, Yonsei University, Seoul, 120-749, South Korea.,Interdisciplinary Program of Integrated OMICS for Biomedical Science, Yonsei University, Seoul, 120-749, South Korea
| | - Young J Oh
- Department of Systems Biology, Yonsei University College of Life Science and Biotechnology, Seoul, 120-749, South Korea.
| |
Collapse
|
203
|
Sena CM, Leandro A, Azul L, Seiça R, Perry G. Vascular Oxidative Stress: Impact and Therapeutic Approaches. Front Physiol 2018; 9:1668. [PMID: 30564132 PMCID: PMC6288353 DOI: 10.3389/fphys.2018.01668] [Citation(s) in RCA: 140] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 11/06/2018] [Indexed: 12/13/2022] Open
Abstract
Oxidative stress has been defined as an imbalance between oxidants and antioxidants and more recently as a disruption of redox signaling and control. It is generally accepted that oxidative stress can lead to cell and tissue injury having a fundamental role in vascular dysfunction. Physiologically, reactive oxygen species (ROS) control vascular function by modulating various redox-sensitive signaling pathways. In vascular disorders, oxidative stress instigates endothelial dysfunction and inflammation, affecting several cells in the vascular wall. Vascular ROS are derived from multiple sources herein discussed, which are prime targets for therapeutic development. This review focuses on oxidative stress in vascular physiopathology and highlights different strategies to inhibit ROS production.
Collapse
Affiliation(s)
- Cristina M. Sena
- Institute of Physiology, Institute for Clinical and Biomedical Research, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Adriana Leandro
- Institute of Physiology, Institute for Clinical and Biomedical Research, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Lara Azul
- Institute of Physiology, Institute for Clinical and Biomedical Research, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Raquel Seiça
- Institute of Physiology, Institute for Clinical and Biomedical Research, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - George Perry
- College of Sciences, One UTSA Circle, University of Texas at San Antonio, San Antonio, TX, United States
| |
Collapse
|
204
|
Efficacy and safety of edaravone in treatment of amyotrophic lateral sclerosis—a systematic review and meta-analysis. Neurol Sci 2018; 40:235-241. [DOI: 10.1007/s10072-018-3653-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 11/16/2018] [Indexed: 12/13/2022]
|
205
|
He J, Xu L, Yang L, Wang X. Epigallocatechin Gallate Is the Most Effective Catechin Against Antioxidant Stress via Hydrogen Peroxide and Radical Scavenging Activity. Med Sci Monit 2018; 24:8198-8206. [PMID: 30428482 PMCID: PMC6247744 DOI: 10.12659/msm.911175] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Background Hydrogen peroxide-induced neuronal oxidative stress is a serious threat to the nervous system. Catechins and related compounds are effective radical scavengers that protect against nerve cell damage. Material/Methods Here, we investigated the antioxidant property of various catechins in protecting against hydrogen peroxide, as well as their radical-scavenging activity. Result We found that catechins treatment effectively protected HT22 cells against H2O2-induced cell viability by decreasing and attenuating reactive oxidative species production in different proportions. In addition, all tested catechins performed radical scavenging activity, and partially removed the free radicals. Among all investigated catechins, epigallocatechin gallate was the most effective against ROS production and had the strongest radical-scavenging activity. These results suggest that beneficial effects were strongly related with structure of catechins, mainly because of the hydroxyl and galloyl groups. Conclusions In conclusion, epigallocatechin gallate is the most effective antioxidant polyphenol against hydrogen peroxide and radical-scavenging activity.
Collapse
Affiliation(s)
- Jinting He
- Department of Neurology, China-Japan Union Hospital, Jilin University, Changchun, Jilin, China (mainland)
| | - Lei Xu
- Department of Neurology, China-Japan Union Hospital, Jilin University, Changchun, Jilin, China (mainland)
| | - Le Yang
- People's Hospital of Jilin Province, Changchun, Jilin, China (mainland)
| | - Xiaofeng Wang
- Department of Stomatology, China-Japan Union Hospital, Jilin University, Changchun, Jilin, China (mainland)
| |
Collapse
|
206
|
Shaw S, Ghosh D, Kumar U, Panjwani U, Kumar B. Impact of high altitude on key determinants of female reproductive health: a review. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2018; 62:2045-2055. [PMID: 30218203 DOI: 10.1007/s00484-018-1609-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 08/24/2018] [Accepted: 08/27/2018] [Indexed: 06/08/2023]
Abstract
Imperishable research work was done on females visiting high-altitude (HA) areas for recreational activities or job purposes as well as on female HA natives. Hypoxia at HA is an unavoidable condition that affects the determinants of female reproductive functions like, the age of menarche and menopause, whole reproductive span, hormone synthesis, and fertility. This review will emphasize whether HA hypoxia is a threat to women: residents or visitors by analyzing these proximate determinants. Delayed menarcheal and advanced menopausal age was found to shorten the reproductive span in some HA populations, whereas in some cases, menstrual cycle was also reported to be irregular. In addition, the completed fertility rate (CFR) was increased when people migrated to lower altitude. Altered stress hormones and reproductive hormones were observed in sea-level females exposed to HA. Oxidative stress (OS) at HA was also reviewed to explain the probable reasons for the observed changes in these determinants because disturbed redox homeostasis may be a connecting link, affecting the reproductive functions. In conclusion, HA hypoxia plays a crucial role on various determinants of female reproductive health and this review will be helpful for more precise study along with the probable underlying mechanisms responsible for the changes in female reproductive functions at HA.
Collapse
Affiliation(s)
- Snigdha Shaw
- High Altitude Physiology Department, Defence Institute of Physiology and Allied Sciences, Delhi, India
| | - Dishari Ghosh
- High Altitude Physiology Department, Defence Institute of Physiology and Allied Sciences, Delhi, India.
| | - Utkarsha Kumar
- High Altitude Physiology Department, Defence Institute of Physiology and Allied Sciences, Delhi, India
| | - Usha Panjwani
- High Altitude Physiology Department, Defence Institute of Physiology and Allied Sciences, Delhi, India
| | - Bhuvnesh Kumar
- High Altitude Physiology Department, Defence Institute of Physiology and Allied Sciences, Delhi, India
| |
Collapse
|
207
|
Yang Y, Lian S, Meng L, Tian Z, Feng Q, Wang Y, Wang P, Qu L, Shou C. Knockdown of PRL-3 increases mitochondrial superoxide anion production through transcriptional regulation of RAP1. Cancer Manag Res 2018; 10:5071-5081. [PMID: 30464607 PMCID: PMC6215920 DOI: 10.2147/cmar.s165344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Background Phosphatase of regenerating liver-3 (PRL-3) has been shown to be highly expressed in various types of cancers and is related to poor prognosis. Our previous study showed that silencing of PRL-3 leads to increased reactive oxygen species (ROS). However, the mechanism of PRL-3 regulating ROS is not clear. Materials and methods PRL-3 or Repressor activator protein 1 (RAP1) was knockdown in human colorectal cancer cell lines HCT116 and SW480. The mRNA level was measured by quantitative real-time (qRT)-PCR and the protein level was measured by western blot. ROS was detected by specific oxidationsensitive fluorescent probes. Cell cycle was analyzed through flow cytometry. Luciferase assay and chromatin immunoprecipitation (ChIP) were performed to investigate the regulation of RAP1 by PRL-3. Gene expression correlation was analyzed through an interactive web server. Statistical analysis was performed with SPSS software. Results Knockdown of PRL-3 significantly increases mitochondrial superoxide anion, mitochondria membrane potential, and induces cell cycle arrest. Decreased PRL-3-induced mitochondrial superoxide anion accumulation is related to the downregulation of RAP1, which could also affect the level of mitochondria superoxide anion. PRL-3 regulates the expression of RAP1 through binding to the promoter of rap1 gene. PRL-3 could regulate the expression of peroxisome proliferator-activated receptor gamma coactivator 1 alpha (PGC-1α) through the mediation of RAP1. Both PRL-3 and RAP1 could regulate the expression of manganese superoxide dismutase 2 (SOD2) and the uncoupling protein 2 (UCP2), which may be related to PRL-3 suppression induced mitochondria superoxide anion. Conclusion Our study presents the first evidence that PRL-3 is involved in the regulation of mitochondria superoxide anion as a transcriptional factor.
Collapse
Affiliation(s)
- Yongyong Yang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Biochemistry and Molecular Biology, Peking University Cancer Hospital & Institute, Beijing 100142, China,
| | - Shenyi Lian
- Department of Pathology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Lin Meng
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Biochemistry and Molecular Biology, Peking University Cancer Hospital & Institute, Beijing 100142, China,
| | - Zhihua Tian
- Central Laboratory, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Qin Feng
- Department of Pathology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Yue Wang
- Department of Pathology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Ping Wang
- Department of Pathology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Like Qu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Biochemistry and Molecular Biology, Peking University Cancer Hospital & Institute, Beijing 100142, China,
| | - Chengchao Shou
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Biochemistry and Molecular Biology, Peking University Cancer Hospital & Institute, Beijing 100142, China,
| |
Collapse
|
208
|
Tan BL, Norhaizan ME, Liew WPP, Sulaiman Rahman H. Antioxidant and Oxidative Stress: A Mutual Interplay in Age-Related Diseases. Front Pharmacol 2018; 9:1162. [PMID: 30405405 PMCID: PMC6204759 DOI: 10.3389/fphar.2018.01162] [Citation(s) in RCA: 512] [Impact Index Per Article: 85.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 09/24/2018] [Indexed: 12/14/2022] Open
Abstract
Aging is the progressive loss of organ and tissue function over time. Growing older is positively linked to cognitive and biological degeneration such as physical frailty, psychological impairment, and cognitive decline. Oxidative stress is considered as an imbalance between pro- and antioxidant species, which results in molecular and cellular damage. Oxidative stress plays a crucial role in the development of age-related diseases. Emerging research evidence has suggested that antioxidant can control the autoxidation by interrupting the propagation of free radicals or by inhibiting the formation of free radicals and subsequently reduce oxidative stress, improve immune function, and increase healthy longevity. Indeed, oxidation damage is highly dependent on the inherited or acquired defects in enzymes involved in the redox-mediated signaling pathways. Therefore, the role of molecules with antioxidant activity that promote healthy aging and counteract oxidative stress is worth to discuss further. Of particular interest in this article, we highlighted the molecular mechanisms of antioxidants involved in the prevention of age-related diseases. Taken together, a better understanding of the role of antioxidants involved in redox modulation of inflammation would provide a useful approach for potential interventions, and subsequently promoting healthy longevity.
Collapse
Affiliation(s)
- Bee Ling Tan
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor, Malaysia
| | - Mohd Esa Norhaizan
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor, Malaysia
- Laboratory of Molecular Biomedicine, Institute of Bioscience, Universiti Putra Malaysia, Selangor, Malaysia
- Research Centre of Excellent, Nutrition and Non-Communicable Diseases (NNCD), Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor, Malaysia
| | - Winnie-Pui-Pui Liew
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor, Malaysia
| | | |
Collapse
|
209
|
Multifunctional magnetic cargo-complexes with radical scavenging properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 94:608-618. [PMID: 30423746 DOI: 10.1016/j.msec.2018.10.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 07/31/2018] [Accepted: 10/02/2018] [Indexed: 11/22/2022]
Abstract
Core-shell magnetic nanoparticle synthesis offers the opportunity to engineering their physical properties for specific applications when the intrinsic magnetic properties can be associated with other interesting ones. The purpose of this study was to design, synthesize, and characterize core-shell magnetic nanoparticles that mimic superoxide dismutase activity offering the possibility of guidance and therapeutic action. We proposed, for the first time, the synthesis and characterization of the nanocarriers comprised of magnetite nanoparticles functionalized with branched polyethyleneimine of low molecular weight (1.8 kDa) permitting the loading of the protocatechuic acid or its inclusion complex with anionic sulfobutylether-β-cyclodextrin for active drug delivery, in order to combine the useful properties of the magnetite and the protocatechuic acid antioxidant effect. NMR and DSC analyses confirmed the formation of the inclusion complex between sulfobutylether-β-cyclodextrin and protocatechuic acid, while structural and compositional analyses (FT-IR, TEM, XRD) revealed the synthesis of the multifunctional magnetic systems. Due to the possibility of being formulated as blood system injectable suspensions, antioxidant activity (using DPPH test) and cytotoxicity (using MTS assay on normal human dermal fibroblasts cells) were also measured, showing adequate properties to be used in biomedical applications. Moreover, we proposed a nanocarrier that would be able to load unstable active principles and with very low solubility in biological fluids to increase their biological ability.
Collapse
|
210
|
Protective effect of 1950 MHz electromagnetic field in human neuroblastoma cells challenged with menadione. Sci Rep 2018; 8:13234. [PMID: 30185877 PMCID: PMC6125585 DOI: 10.1038/s41598-018-31636-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 08/15/2018] [Indexed: 12/15/2022] Open
Abstract
This study aims to assess whether a 1950 MHz radiofrequency (RF) electromagnetic field could protect human neuroblastoma SH-SY5Y cells against a subsequent treatment with menadione, a chemical agent inducing DNA damage via reactive oxygen species formation. Cells were pre-exposed for 20 h to specific absorption rate of either 0.3 or 1.25 W/kg, and 3 h after the end of the exposure, they were treated with 10 µM menadione (MD) for 1 h. No differences were observed between sham- and RF-exposed samples. A statistically significant reduction in menadione-induced DNA damage was detected in cells pre-exposed to either 0.3 or 1.25 W/kg (P < 0.05). Moreover, our analyses of gene expression revealed that the pre-exposure to RF almost inhibited the dramatic loss of glutathione peroxidase-based antioxidant scavenging efficiency that was induced by MD, and in parallel strongly enhanced the gene expression of catalase-based antioxidant protection. In addition, RF abolished the MD-dependent down-regulation of oxoguanine DNA glycosylase, which is a critical DNA repairing enzyme. Overall, our findings suggested that RF pre-exposure reduced menadione-dependent DNA oxidative damage, most probably by enhancing antioxidant scavenging efficiency and restoring DNA repair capability. Our results provided some insights into the molecular mechanisms underlying the RF-induced adaptive response in human neuroblastoma cells challenged with menadione.
Collapse
|
211
|
Meta-analysis of randomized controlled trials of 4 weeks or longer suggest that curcumin may afford some protection against oxidative stress. Nutr Res 2018; 60:1-12. [PMID: 30527253 DOI: 10.1016/j.nutres.2018.08.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 08/04/2018] [Accepted: 08/17/2018] [Indexed: 01/10/2023]
Abstract
Oxidative stress (OS) is associated with aging and multiple diseases, yet the effects of curcumin in humans are not definite. We undertook a meta-analysis of the effects of curcumin on OS biomarkers. In January 2018, we searched PubMed, Books@Ovid, Journals@Ovid, EMBASE, MEDLINE(R), and Web of Science to identify randomized controlled trials conducted ≥4 weeks and investigating the effects of curcumin on OS biomarkers, including glutathione peroxidase (GPX) activity in red blood cells (RBC), serum malondialdehyde (MDA) concentrations, and superoxide dismutase (SOD) activity. The standardized mean difference (SMD) with a 95% confidence interval (CI) was used to present the results. The meta-analysis included eight clinical studies (626 patients). There was a significant reduction in circulating MDA concentrations (SMD = -0.769, 95% CI: -1.059 to -0.478) and a significant increase in SOD activity (SMD = 1.084, 95% CI: 0.487 to 1.680) following curcumin supplementation. There was no change in the GPX activity in RBC. There was no significant association between the MDA-lowering effect of curcumin with underlying diseases or treatment duration. However, curcumin showed the MDA-lowering effect at curcuminoids doses ≥600 mg/d (P < .0001). This effect was greater when combined with piperine than curcuminoids alone (SMD = -1.085, 95% CI: -1.357 to -0.813; SMD = -0.850, 95% CI: -1.158 to -0.542). Curcumin may play an anti-oxidative role by reducing circulating MDA concentrations and increasing SOD activity. Further research of curcumin in different populations with multiple biomarkers of redox status is required.
Collapse
|
212
|
Wang J, Dong W. Oxidative stress and bronchopulmonary dysplasia. Gene 2018; 678:177-183. [PMID: 30098433 DOI: 10.1016/j.gene.2018.08.031] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 07/30/2018] [Accepted: 08/06/2018] [Indexed: 12/18/2022]
Abstract
With the progress of modern medicine, oxygen therapy has become a crucial measure for the treatment of premature infants. As an environmental stimulus, in the normal development of lungs, oxygen plays a very important regulatory role. However, the problem is that long-term exposure to hyperoxia can interfere with the development of lungs, leading to irreversible developmental abnormalities. Now, the incidence of bronchopulmonary dysplasia (BPD) is increasing year by year. The existing related research shows that although BPD is a multi-factor triggered disease, its main risk factors are the premature exposure to hyperoxia and the role of reactive oxygen species (ROS). As for premature infants, especially very premature babies and those with very low birth weight, prolonged exposure to high oxygen can affect and alter the normal developmental trajectories of lung tissue and vascular beds, triggering developmental disorders, such as BPD. In the relevant studies about human BPD, a large number of them support that ROS is associated with impaired lung development. Neonates, due to the damage in the development of alveolar, are specific to hyperoxia-induced inflammatory damage. This review while focusing on the role of oxidative stress in the pathogenesis of BPD, suggests that antioxidant measures may be effective to guard against BPD of preterm infants.
Collapse
Affiliation(s)
- Junyi Wang
- Department of Newborn Medicine, The Affiliated Hospital of Southwest Medical University, 25 Taiping Road, Luzhou, Sichuan 646000, People's Republic of China
| | - Wenbin Dong
- Department of Newborn Medicine, The Affiliated Hospital of Southwest Medical University, 25 Taiping Road, Luzhou, Sichuan 646000, People's Republic of China.
| |
Collapse
|
213
|
Recio C, Lucy D, Iveson P, Iqbal AJ, Valaris S, Wynne G, Russell AJ, Choudhury RP, O'Callaghan C, Monaco C, Greaves DR. The Role of Metabolite-Sensing G Protein-Coupled Receptors in Inflammation and Metabolic Disease. Antioxid Redox Signal 2018; 29:237-256. [PMID: 29117706 DOI: 10.1089/ars.2017.7168] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
SIGNIFICANCE Great attention has been placed on the link between metabolism and immune function giving rise to the term "immunometabolism." It is widely accepted that inflammation and oxidative stress are key processes that underlie metabolic complications during obesity, diabetes, and atherosclerosis. Therefore, identifying the mechanisms and mediators that are involved in the regulation of both inflammation and metabolic homeostasis is of high scientific and therapeutic interest. Recent Advances: G protein-coupled receptors (GPCRs) that signal in response to metabolites have emerged as attractive therapeutic targets in inflammatory disease. Critical Issues and Future Directions: In this review, we discuss recent findings about the physiological role of the main metabolite-sensing GPCRs, their implication in immunometabolic disorders, their principal endogenous and synthetic ligands, and their potential as drug targets in inflammation and metabolic disease. Antioxid. Redox Signal. 29, 237-256.
Collapse
Affiliation(s)
- Carlota Recio
- 1 Sir William Dunn School of Pathology, University of Oxford , Oxford, Great Britain
| | - Daniel Lucy
- 2 Department of Chemistry, University of Oxford , Oxford, Great Britain
| | - Poppy Iveson
- 1 Sir William Dunn School of Pathology, University of Oxford , Oxford, Great Britain
| | - Asif J Iqbal
- 1 Sir William Dunn School of Pathology, University of Oxford , Oxford, Great Britain
| | - Sophia Valaris
- 1 Sir William Dunn School of Pathology, University of Oxford , Oxford, Great Britain
| | - Graham Wynne
- 2 Department of Chemistry, University of Oxford , Oxford, Great Britain
| | - Angela J Russell
- 2 Department of Chemistry, University of Oxford , Oxford, Great Britain
| | - Robin P Choudhury
- 3 Radcliffe Department of Medicine, University of Oxford , Oxford, Great Britain
| | - Chris O'Callaghan
- 4 Nuffield Department of Medicine, University of Oxford , Oxford, Great Britain
| | - Claudia Monaco
- 5 Kennedy Institute for Rheumatology, University of Oxford , Oxford, Great Britain
| | - David R Greaves
- 1 Sir William Dunn School of Pathology, University of Oxford , Oxford, Great Britain
| |
Collapse
|
214
|
Müller M, Ahumada-Castro U, Sanhueza M, Gonzalez-Billault C, Court FA, Cárdenas C. Mitochondria and Calcium Regulation as Basis of Neurodegeneration Associated With Aging. Front Neurosci 2018; 12:470. [PMID: 30057523 PMCID: PMC6053519 DOI: 10.3389/fnins.2018.00470] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 06/20/2018] [Indexed: 12/31/2022] Open
Abstract
Age is the main risk factor for the onset of neurodegenerative diseases. A decline of mitochondrial function has been observed in several age-dependent neurodegenerative diseases and may be a major contributing factor in their progression. Recent findings have shown that mitochondrial fitness is tightly regulated by Ca2+ signals, which are altered long before the onset of measurable histopathology hallmarks or cognitive deficits in several neurodegenerative diseases including Alzheimer’s disease (AD), the most frequent cause of dementia. The transfer of Ca2+ from the endoplasmic reticulum (ER) to the mitochondria, facilitated by the presence of mitochondria-associated membranes (MAMs), is essential for several physiological mitochondrial functions such as respiration. Ca2+ transfer to mitochondria must be finely regulated because excess Ca2+ will disturb oxidative phosphorylation (OXPHOS), thereby increasing the generation of reactive oxygen species (ROS) that leads to cellular damage observed in both aging and neurodegenerative diseases. In addition, excess Ca2+ and ROS trigger the opening of the mitochondrial transition pore mPTP, leading to loss of mitochondrial function and cell death. mPTP opening probably increases with age and its activity has been associated with several neurodegenerative diseases. As Ca2+ seems to be the initiator of the mitochondrial failure that contributes to the synaptic deficit observed during aging and neurodegeneration, in this review, we aim to look at current evidence for mitochondrial dysfunction caused by Ca2+ miscommunication in neuronal models of neurodegenerative disorders related to aging, with special emphasis on AD.
Collapse
Affiliation(s)
- Marioly Müller
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile.,Department of Medical Technology, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | | | - Mario Sanhueza
- Center for Integrative Biology, Faculty of Sciences, Universidad Mayor, Santiago, Chile
| | - Christian Gonzalez-Billault
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile.,Department of Biology, Faculty of Sciences, Universidad de Chile, Santiago, Chile.,The Buck Institute for Research on Aging, Novato, CA, United States
| | - Felipe A Court
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile.,Center for Integrative Biology, Faculty of Sciences, Universidad Mayor, Santiago, Chile.,The Buck Institute for Research on Aging, Novato, CA, United States
| | - César Cárdenas
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile.,Department of Biology, Faculty of Sciences, Universidad de Chile, Santiago, Chile.,Anatomy and Developmental Biology Program, Institute of Biomedical Sciences, University of Chile, Santiago, Chile.,Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA, United States
| |
Collapse
|
215
|
Liu Z, Ren Z, Zhang J, Chuang CC, Kandaswamy E, Zhou T, Zuo L. Role of ROS and Nutritional Antioxidants in Human Diseases. Front Physiol 2018; 9:477. [PMID: 29867535 PMCID: PMC5966868 DOI: 10.3389/fphys.2018.00477] [Citation(s) in RCA: 391] [Impact Index Per Article: 65.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 04/16/2018] [Indexed: 12/13/2022] Open
Abstract
The overproduction of reactive oxygen species (ROS) has been implicated in the development of various chronic and degenerative diseases such as cancer, respiratory, neurodegenerative, and digestive diseases. Under physiological conditions, the concentrations of ROS are subtlety regulated by antioxidants, which can be either generated endogenously or externally supplemented. A combination of antioxidant-deficiency and malnutrition may render individuals more vulnerable to oxidative stress, thereby increasing the risk of cancer occurrence. In addition, antioxidant defense can be overwhelmed during sustained inflammation such as in chronic obstructive pulmonary diseases, inflammatory bowel disease, and neurodegenerative disorders, cardiovascular diseases, and aging. Certain antioxidant vitamins, such as vitamin D, are essential in regulating biochemical pathways that lead to the proper functioning of the organs. Antioxidant supplementation has been shown to attenuate endogenous antioxidant depletion thus alleviating associated oxidative damage in some clinical research. However, some results indicate that antioxidants exert no favorable effects on disease control. Thus, more studies are warranted to investigate the complicated interactions between ROS and different types of antioxidants for restoration of the redox balance under pathologic conditions. This review highlights the potential roles of ROS and nutritional antioxidants in the pathogenesis of several redox imbalance-related diseases and the attenuation of oxidative stress-induced damages.
Collapse
Affiliation(s)
- Zewen Liu
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, United States
- Department of Anesthesiology, Affiliated Ezhou Central Hospital, Wuhan University, Ezhou, China
| | - Zhangpin Ren
- Department of Pediatrics, Affiliated Ezhou Central Hospital, Wuhan University, Ezhou, China
| | - Jun Zhang
- Department of Rehabilitation, Affiliated Ezhou Central Hospital, Wuhan University, Ezhou, China
| | - Chia-Chen Chuang
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, United States
- Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH, United States
| | - Eswar Kandaswamy
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Tingyang Zhou
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, United States
- Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH, United States
| | - Li Zuo
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, United States
- Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH, United States
| |
Collapse
|
216
|
Wang R, Zhou T, Liu W, Zuo L. Molecular mechanism of bystander effects and related abscopal/cohort effects in cancer therapy. Oncotarget 2018; 9:18637-18647. [PMID: 29719632 PMCID: PMC5915099 DOI: 10.18632/oncotarget.24746] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Accepted: 02/25/2018] [Indexed: 12/17/2022] Open
Abstract
Cancer cells subjected to ionizing radiation may release signals which can influence nearby non-irradiated cells, termed bystander effects. The transmission of bystander effects among cancer cells involves the activation of inflammatory cytokines, death ligands, and reactive oxygen/nitrogen species. In addition to bystander effects, two other forms of non-target effects (NTEs) have been identified in radiotherapy, as one is called cohort effects and the other is called abscopal effects. Cohort effects represent the phenomenon where irradiated cells can produce signals that reduce the survival of neighboring cells within an irradiated volume. The effects suggest the importance of cellular communication under irradiation with non-uniform dose distribution. In contrast, abscopal effects describe the NTEs that typically occur in non-irradiated cells distant from an irradiated target. These effects can be mediated primarily by immune cells such as T cells. Clinical trials have shown that application of radiation along with immunotherapy may enhance abscopal effects and improve therapeutic efficacy on non-target lesions outside an irradiated field. According to NTEs, cell viability is reduced not only by direct irradiation effects, but also due to signals emitted from nearby irradiated cells. A clinical consideration of NTEs could have a revolutionary impact on current radiotherapy via the establishment of more efficient and less toxic radiobiological models for treatment planning compared to conventional models. Thus, we will review the most updated findings about these effects and outline their mechanisms and potential applications in cancer treatment with a special focus on the brain, lung, and breast cancers.
Collapse
Affiliation(s)
- Rong Wang
- Department of Radiation, Fifth People's Hospital of Qinghai Province, Xi Ning, Qing Hai 810007, China.,Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, Ohio 43210, USA
| | - Tingyang Zhou
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, Ohio 43210, USA.,Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, Ohio 43210, USA
| | - Wei Liu
- Department of Radiation Oncology, Mayo Clinic Arizona, Phoenix, Arizona 85054, USA
| | - Li Zuo
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, Ohio 43210, USA.,Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, Ohio 43210, USA
| |
Collapse
|
217
|
Glutathionylation: a regulatory role of glutathione in physiological processes. Arh Hig Rada Toksikol 2018; 69:1-24. [DOI: 10.2478/aiht-2018-69-2966] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 03/01/2018] [Indexed: 12/18/2022] Open
Abstract
Abstract
Glutathione (γ-glutamyl-cysteinyl-glycine) is an intracellular thiol molecule and a potent antioxidant that participates in the toxic metabolism phase II biotransformation of xenobiotics. It can bind to a variety of proteins in a process known as glutathionylation. Protein glutathionylation is now recognised as one of important posttranslational regulatory mechanisms in cell and tissue physiology. Direct and indirect regulatory roles in physiological processes include glutathionylation of major transcriptional factors, eicosanoids, cytokines, and nitric oxide (NO). This review looks into these regulatory mechanisms through examples of glutathione regulation in apoptosis, vascularisation, metabolic processes, mitochondrial integrity, immune system, and neural physiology. The focus is on the physiological roles of glutathione beyond biotransformational metabolism.
Collapse
|
218
|
Aquaporin Membrane Channels in Oxidative Stress, Cell Signaling, and Aging: Recent Advances and Research Trends. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:1501847. [PMID: 29770164 PMCID: PMC5892239 DOI: 10.1155/2018/1501847] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 01/29/2018] [Accepted: 02/20/2018] [Indexed: 02/07/2023]
Abstract
Reactive oxygen species (ROS) are produced as a result of aerobic metabolism and as by-products through numerous physiological and biochemical processes. While ROS-dependent modifications are fundamental in transducing intracellular signals controlling pleiotropic functions, imbalanced ROS can cause oxidative damage, eventually leading to many chronic diseases. Moreover, increased ROS and reduced nitric oxide (NO) bioavailability are main key factors in dysfunctions underlying aging, frailty, hypertension, and atherosclerosis. Extensive investigation aims to elucidate the beneficial effects of ROS and NO, providing novel insights into the current medical treatment of oxidative stress-related diseases of high epidemiological impact. This review focuses on emerging topics encompassing the functional involvement of aquaporin channel proteins (AQPs) and membrane transport systems, also allowing permeation of NO and hydrogen peroxide, a major ROS, in oxidative stress physiology and pathophysiology. The most recent advances regarding the modulation exerted by food phytocompounds with antioxidant action on AQPs are also reviewed.
Collapse
|
219
|
Miotto PM, Holloway GP. Exercise-induced reductions in mitochondrial ADP sensitivity contribute to the induction of gene expression and mitochondrial biogenesis through enhanced mitochondrial H 2O 2 emission. Mitochondrion 2018; 46:116-122. [PMID: 29588219 DOI: 10.1016/j.mito.2018.03.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 01/23/2018] [Accepted: 03/21/2018] [Indexed: 01/04/2023]
Abstract
Acute exercise rapidly induces mitochondrial gene expression, however, the intracellular events regulating this process remain incompletely understood. The purpose of this study was to determine whether reductions in mitochondrial ADP sensitivity during exercise have a biological role in regulating mitochondrial-derived reactive oxygen species (ROS) production and the induction of mitochondrial biogenesis. Mitochondrial creatine kinase wildtype (WT) and knockout (KO) mice have divergent responses in ADP sensitivity during exercise, and we therefore used these mice to determine the relationship between mitochondrial ADP sensitivity, ROS production, and mitochondrial adaptations to exercise. In WT mice, acute exercise reduced mitochondrial ADP respiratory sensitivity and the ability of ADP to suppress ROS production, while increasing mitochondrial gene transcription (PGC-1α, PGC-1β and PDK4). In stark contrast, in KO mice, exercise increased ADP sensitivity, reduced mitochondrial ROS emission, and did not induce gene transcription. Despite the divergence in mRNA responses, exercise similarly induced calcium/calmodulin-dependent protein kinase II (CaMKII) and AMP-activated protein kinase (AMPK) phosphorylation in WT and KO mice, however only WT mice were associated with redox stress (4HNE). These data implicate acute changes in ADP sensitivity in mitochondrial adaptations to exercise. To further examine this we chronically exercise trained mice. While training increased mitochondrial content and reduced ADP sensitivity in WT mice, KO mice did not exhibit adaptations to exercise. Combined, these data suggest that exercise-induced attenuations in mitochondrial ADP sensitivity mediate redox signals that contribute to the induction of acute and chronic mitochondrial adaptations.
Collapse
Affiliation(s)
- Paula M Miotto
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph N1G 2W1, ON, Canada.
| | - Graham P Holloway
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph N1G 2W1, ON, Canada.
| |
Collapse
|
220
|
Formanowicz D, Radom M, Rybarczyk A, Formanowicz P. The role of Fenton reaction in ROS-induced toxicity underlying atherosclerosis – modeled and analyzed using a Petri net-based approach. Biosystems 2018; 165:71-87. [DOI: 10.1016/j.biosystems.2018.01.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 01/02/2018] [Accepted: 01/04/2018] [Indexed: 12/12/2022]
|
221
|
Abstract
Mycotoxins are the most common contaminants of food and feed worldwide and are considered an important risk factor for human and animal health. Oxidative stress occurs in cells when the concentration of reactive oxygen species exceeds the cell’s antioxidant capacity. Oxidative stress causes DNA damage, enhances lipid peroxidation, protein damage and cell death. This review addresses the toxicity of the major mycotoxins, especially aflatoxin B1, deoxynivalenol, nivalenol, T-2 toxin, fumonisin B1, ochratoxin, patulin and zearalenone, in relation to oxidative stress. It summarises the data associated with oxidative stress as a plausible mechanism for mycotoxin-induced toxicity. Given the contamination caused by mycotoxins worldwide, the protective effects of a variety of natural compounds due to their antioxidant capacities have been evaluated. We review data on the ability of vitamins, flavonoids, crocin, curcumin, green tea, lycopene, phytic acid, L-carnitine, melatonin, minerals and mixtures of anti-oxidants to mitigate the toxic effect of mycotoxins associated with oxidative stress.
Collapse
Affiliation(s)
- E.O. da Silva
- Universidade Estadual de Londrina, Laboratory of Animal Pathology, Campus Universitário, Rodovia Celso Garcia Cid, Km 380, Londrina, Paraná 86051-990, Brazil
| | - A.P.F.L. Bracarense
- Universidade Estadual de Londrina, Laboratory of Animal Pathology, Campus Universitário, Rodovia Celso Garcia Cid, Km 380, Londrina, Paraná 86051-990, Brazil
| | - I.P. Oswald
- Université de Toulouse, Toxalim, Research Center in Food Toxicology, INRA, UMR 1331 ENVT, INP-PURPAN, 31076 Toulouse, France
| |
Collapse
|
222
|
Goff JP. Invited review: Mineral absorption mechanisms, mineral interactions that affect acid-base and antioxidant status, and diet considerations to improve mineral status. J Dairy Sci 2018; 101:2763-2813. [PMID: 29397180 DOI: 10.3168/jds.2017-13112] [Citation(s) in RCA: 165] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 12/06/2017] [Indexed: 12/18/2022]
Abstract
Several minerals are required for life to exist. In animals, 7 elements (Ca, P, Mg, Na, K, Cl, and S) are required to be present in the diet in fairly large amounts (grams to tens of grams each day for the dairy cow) and are termed macrominerals. Several other elements are termed microminerals or trace minerals because they are required in much smaller amounts (milligrams to micrograms each day). In most cases the mineral in the diet must be absorbed across the gastrointestinal mucosa and enter the blood if it is to be of value to the animal. The bulk of this review discusses the paracellular and transcellular mechanisms used by the gastrointestinal tract to absorb each of the various minerals needed. Unfortunately, particularly in ruminants, interactions between minerals and other substances within the diet can occur within the digestive tract that impair mineral absorption. The attributes of organic or chelated minerals that might permit diet minerals to circumvent factors that inhibit absorption of more traditional inorganic forms of these minerals are discussed. Once absorbed, minerals are used in many ways. One focus of this review is the effect macrominerals have on the acid-base status of the animal. Manipulation of dietary cation and anion content is commonly used as a tool in the dry period and during lactation to improve performance. A section on how the strong ion theory can be used to understand these effects is included. Many microminerals play a role in the body as cofactors of enzymes involved in controlling free radicals within the body and are vital to antioxidant capabilities. Those same minerals, when consumed in excess, can become pro-oxidants in the body, generating destructive free radicals. Complex interactions between minerals can compromise the effectiveness of a diet in promoting health and productivity of the cow. The objective of this review is to provide insight into some of these mechanisms.
Collapse
Affiliation(s)
- Jesse P Goff
- Biomedical Sciences, College of Veterinary Medicine, Iowa State University, Ames 50011.
| |
Collapse
|
223
|
Zhou T, Prather ER, Garrison DE, Zuo L. Interplay between ROS and Antioxidants during Ischemia-Reperfusion Injuries in Cardiac and Skeletal Muscle. Int J Mol Sci 2018; 19:ijms19020417. [PMID: 29385043 PMCID: PMC5855639 DOI: 10.3390/ijms19020417] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 01/14/2018] [Accepted: 01/21/2018] [Indexed: 12/16/2022] Open
Abstract
Ischemia reperfusion (IR), present in myocardial infarction or extremity injuries, is a major clinical issue and leads to substantial tissue damage. Molecular mechanisms underlying IR injury in striated muscles involve the production of reactive oxygen species (ROS). Excessive ROS accumulation results in cellular oxidative stress, mitochondrial dysfunction, and initiation of cell death by activation of the mitochondrial permeability transition pore. Elevated ROS levels can also decrease myofibrillar Ca2+ sensitivity, thereby compromising muscle contractile function. Low levels of ROS can act as signaling molecules involved in the protective pathways of ischemic preconditioning (IPC). By scavenging ROS, antioxidant therapies aim to prevent IR injuries with positive treatment outcomes. Novel therapies such as postconditioning and pharmacological interventions that target IPC pathways hold great potential in attenuating IR injuries. Factors such as aging and diabetes could have a significant impact on the severity of IR injuries. The current paper aims to provide a comprehensive review on the multifaceted roles of ROS in IR injuries, with a focus on cardiac and skeletal muscle, as well as recent advancement in ROS-related therapies.
Collapse
Affiliation(s)
- Tingyang Zhou
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA.
- Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH 43210, USA.
| | - Evan R Prather
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA.
| | - Davis E Garrison
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA.
| | - Li Zuo
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA.
- Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH 43210, USA.
| |
Collapse
|
224
|
Chung YT, Chou CY, Tsai WC, Chen WK, Lin CL, Chung WS. Acetaminophen Poisoning May Increase Coronary Artery Disease Risk: A Nationwide Cohort Study. Cardiovasc Toxicol 2018; 18:386-391. [PMID: 29302859 DOI: 10.1007/s12012-017-9442-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The purpose of this nationwide cohort study was to investigate the incidence and risk of coronary artery disease (CAD) in patients with acetaminophen (APAP) poisoning. We identified the patients with APAP poisoning and randomly selected comparison patients according to a 1:4 ratio, matching them by age, sex, and the index year using data from the National Health Insurance Research Database from 2000 to 2010. We traced both cohorts until a diagnosis of CAD, loss to follow-up, or the end of 2011. In total, 2723 patients with APAP poisoning and 10,892 comparison patients have followed. The incidence rate of CAD was higher in the APAP poisoning cohort than in the non-APAP poisoning cohort (1.53 vs 0.87 per 1000 patient-years). The APAP poisoning cohort exhibited a 1.85-fold higher risk of CAD than did the non-APAP poisoning cohort (adjusted hazard ratio [aHR] 1.85; 95% confidence interval [CI] 1.16-2.94). Male sex, advanced age, and hypertension were independently associated with CAD risk. The risk of CAD was considerably higher within 3 years following APAP poisoning (aHR 2.73; 95% CI 1.31-5.69). This study indicated that APAP poisoning may increase risk of CAD development.
Collapse
Affiliation(s)
- Yu-Ting Chung
- Division of Emergency Medicine, Asia University Hospital, Taichung, Taiwan.,College of Public Health, China Medical University, Taichung, Taiwan
| | - Che-Yi Chou
- Division of Nephrolog, Asia University Hospital, Taichung, Taiwan
| | - Wen-Chen Tsai
- College of Public Health, China Medical University, Taichung, Taiwan.,Department of Health Services Administration, China Medical University, Taichung, Taiwan
| | - Wei-Kung Chen
- Department of Emergency Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Cheng-Li Lin
- Management Office for Health, China Medical University HospitalData, Taichung, Taiwan
| | - Wei-Sheng Chung
- Department of Health Services Administration, China Medical University, Taichung, Taiwan. .,Department of Internal Medicine, Taichung Hospital, Ministry of Health and Welfare, No. 199, Section 1, San-Min Road, Taichung City, 40343, Taiwan. .,Department of Healthcare Administration, Central Taiwan University of Science and Technology, Taichung, Taiwan.
| |
Collapse
|
225
|
Guo J, Zheng Z, Lu X, Zeng S, Chen C, Zhang L, Zheng B. Purification and Characterisation of κ-Carrageenan Oligosaccharides Prepared by κ-Carrageenase from Thalassospira sp. Fjfst-332. Carbohydr Polym 2018; 180:314-327. [DOI: 10.1016/j.carbpol.2017.10.043] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 09/15/2017] [Accepted: 10/11/2017] [Indexed: 01/15/2023]
|
226
|
Kumar A, Singh KP, Bali P, Anwar S, Kaul A, Singh OP, Gupta BK, Kumari N, Noor Alam M, Raziuddin M, Sinha MP, Gourinath S, Sharma AK, Sohail M. iNOS polymorphism modulates iNOS/NO expression via impaired antioxidant and ROS content in P. vivax and P. falciparum infection. Redox Biol 2017; 15:192-206. [PMID: 29268202 PMCID: PMC5738204 DOI: 10.1016/j.redox.2017.12.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 11/30/2017] [Accepted: 12/12/2017] [Indexed: 01/09/2023] Open
Abstract
Nitric oxide (NO) has dicotomic influence on modulating host-parasite interplay, synchronizing physiological orchestrations and diagnostic potential; instigated us to investigate the plausible association and genetic regulation among NO level, components of oxidative stress, iNOS polymorphisms and risk of malaria. Here, we experimentally elucidate that iNOS promoter polymorphisms are associated with risk of malaria; employing mutation specific genotyping, functional interplay using western blot and RT-PCR, quantitative estimation of NO, total antioxidant content (TAC) and reactive oxygen species (ROS). Genotyping revealed significantly associated risk of P. vivax (adjusted OR = 1.92 and 1.72) and P. falciparum (adjusted OR = 1.68 and 1.75) infection with SNP at iNOS-954G/C and iNOS-1173C/T positions, respectively; though vivax showed higher risk of infection. Intriguingly, mutation and infection specific differential upregulation of iNOS expression/NO level was observed and found to be significantly associated with mutant genotypes. Moreover, P. vivax showed pronounced iNOS protein (2.4 fold) and mRNA (2.5 fold) expression relative to healthy subjects. Furthermore, TAC and ROS were significantly decreased in infection; and differentially decreased in mutant genotypes. Our findings endorse polymorphic regulation of iNOS expression, altered oxidant-antioxidant components and evidences of risk association as the hallmark of malaria pathogenesis. iNOS/NO may serve as potential diagnostic marker in assessing clinical malaria. Polymorphism of iNOS revealed significantly associated risk of P. vivax and P. falciparum malaria and vivax showed higher risk of infection. We observed mutation and infection specific differential expression of iNOS/NO cascade. We investigated mutation specific antioxidant and ROS orchestration and observed lower TAC and ROS content in infection. Evaluated the clinical correlation among stratified axillary temperature, NO and haemoglobin content during infection.
Collapse
Affiliation(s)
- Amod Kumar
- University Department of Zoology, Vinoba Bhave University, Hazaribag, Jharkhand, India
| | - Krishn Pratap Singh
- University Department of Zoology, Vinoba Bhave University, Hazaribag, Jharkhand, India
| | - Prerna Bali
- National Institute of Malaria Research, Dawarka, Delhi, India
| | - Shadab Anwar
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Asha Kaul
- National Institute of Malaria Research, Dawarka, Delhi, India
| | - Om P Singh
- National Institute of Malaria Research, Dawarka, Delhi, India
| | - Birendra Kumar Gupta
- University Department of Zoology, Vinoba Bhave University, Hazaribag, Jharkhand, India
| | - Nutan Kumari
- Department of Physiology, Patna Medical College and Hospital, Patna, India
| | - Md Noor Alam
- University Department of Zoology, Vinoba Bhave University, Hazaribag, Jharkhand, India
| | - Mohammad Raziuddin
- University Department of Zoology, Vinoba Bhave University, Hazaribag, Jharkhand, India
| | | | | | - Ajay Kumar Sharma
- University Department of Zoology, Vinoba Bhave University, Hazaribag, Jharkhand, India.
| | - Mohammad Sohail
- University Department of Zoology, Vinoba Bhave University, Hazaribag, Jharkhand, India.
| |
Collapse
|
227
|
Persson PB, Bondke Persson A. Can we make physiological research better? Acta Physiol (Oxf) 2017; 221:224-226. [PMID: 29055074 DOI: 10.1111/apha.12987] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 10/16/2017] [Indexed: 01/06/2023]
Affiliation(s)
- P. B. Persson
- Charité-Universitätsmedizin Berlin; corporate member of Freie Universität Berlin; Humboldt-Universität zu Berlin; and Berlin Institute of Health; Institute of Vegetative Physiology; Berlin Germany
| | - A. Bondke Persson
- Charité-Universitätsmedizin Berlin; corporate member of Freie Universität Berlin; Humboldt-Universität zu Berlin; and Berlin Institute of Health; Berlin Germany
| |
Collapse
|
228
|
Venkatesan T, Park EJ, Choi YW, Lee J, Kim YK. Anti-inflammatory activity of Ternstroemia gymnanthera stem bark extracts in bacterial lipopolysaccharide-stimulated RAW264.7 murine macrophage cells. PHARMACEUTICAL BIOLOGY 2017; 55:837-846. [PMID: 28140744 PMCID: PMC6130460 DOI: 10.1080/13880209.2017.1278778] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 10/18/2016] [Accepted: 12/19/2016] [Indexed: 06/06/2023]
Abstract
CONTEXT Ternstroemia gymnanthera Sprague (Theaceae) possesses various known pharmacological properties. However, its anti-inflammatory activity has not been reported. OBJECTIVE The anti-inflammatory activity of Ternstroemia gymnanthera stem bark aqueous extract (TGSBE) was evaluated using LPS-stimulated RAW264.7 macrophages. MATERIALS AND METHODS Cytotoxicity was assessed by MTT assay after 24 h with TGSBE (25-200 μg/mL). Further testing used TGSBE at 100 and 200 μg/mL. Griess and ELISA methods after 24 h with TGSBE determined NO and cytokine levels, respectively; then, mRNA levels (iNOS & cytokines) were analyzed by Quantitative-PCR after 12 h. NF-κB and MAPK were assessed by immunoblotting after TGSBE treatment for 12 h, followed by LPS for 30 min. Immunofluorescence assay was also performed for NF-κB. ROS and MMP, after 12 h with TGSBE, were determined by flow cytometry. The antioxidant potential of TGSBE was analyzed by ABTS assay. The Folin-Ciocalteu method determined the total phenolic content of TGSBE. LPS concentration was 0.5 μg/mL. RESULTS TGSBE at 200 μg/mL showed about 96.2% viability while suppressing the production of NO (88.99%), TNFα (24.38%), IL-6 (61.70%) and IL-1β (55.12%) and gene expression by 67.88, 45.24, 65.84, and 70.48%, respectively. TGSBE decreased ROS (79.26%) and improved MMP (48.01%); it inhibited translocation of NF-κB and MAPK activation. Radical scavenging activity was 50% at 402.17 μg/mL (ascorbic acid standard: 88.8 μg/mL). Total phenolic content was 240.9 mg GAE/g. DISCUSSION AND CONCLUSION TGSBE suppresses the inflammatory response by inhibiting the NF-κB and MAPK cascades exhibiting therapeutic potential to treat inflammatory diseases associated with increased activation of macrophages.
Collapse
Affiliation(s)
- Thamizhiniyan Venkatesan
- Department of Forest products and Biotechnology, College of Forest Science, Kookmin University, Seoul, South Korea
| | - Eun-Jin Park
- Department of Forest products and Biotechnology, College of Forest Science, Kookmin University, Seoul, South Korea
| | - Young-Woong Choi
- Department of Forest products and Biotechnology, College of Forest Science, Kookmin University, Seoul, South Korea
| | - Jennifer Lee
- Department of Forest products and Biotechnology, College of Forest Science, Kookmin University, Seoul, South Korea
| | - Young-Kyoon Kim
- Department of Forest products and Biotechnology, College of Forest Science, Kookmin University, Seoul, South Korea
| |
Collapse
|
229
|
Commentaries on Viewpoint: Loopomics: a new functional approach to life. J Appl Physiol (1985) 2017; 123:1014-1015. [DOI: 10.1152/japplphysiol.00558.2017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 06/21/2017] [Indexed: 11/22/2022] Open
|
230
|
Becatti M, Mannucci A, Barygina V, Mascherini G, Emmi G, Silvestri E, Wright D, Taddei N, Galanti G, Fiorillo C. Redox status alterations during the competitive season in élite soccer players: focus on peripheral leukocyte-derived ROS. Intern Emerg Med 2017; 12:777-788. [PMID: 28361355 DOI: 10.1007/s11739-017-1653-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 03/17/2017] [Indexed: 01/14/2023]
Abstract
It is well known that exercise training can deeply affect redox homeostasis by enhancing antioxidant defenses. However, exhaustive exercise can induce excessive reactive oxygen species (ROS) production, leading to oxidative stress-related tissue injury and impaired muscle contractility. Hence, ROS represent important signaling molecules whose level has to be maintained to preserve normal cellular function, but which can also accumulate in response to repetitive muscle contraction. In fact, low levels of oxidants have been suggested to be essential for muscle contraction. Both aerobic and anaerobic exercise induce ROS production from several sources (mitochondria, NADPH oxidases and xanthine oxidases); however, the exact mechanisms underlying exercise-induced oxidative stress remain undefined. Professional athletes show a high risk for oxidative stress, and consequently muscle injury or decreased performance. Based on this background, we investigated leukocyte redox homeostasis alterations during the soccer season in élite soccer players. Overall blood redox status was investigated in twenty-seven male soccer players from primary division (Italian "Serie A" team) at four critical time points during the soccer season: T0: just before the first team training session; T1: at the beginning of the season; T2: in the middle of the season and T3: at the end of the season. The main markers of muscular damage (CK, myoglobin, LDH), assessed by standard routine methods, are significantly altered at the considered time points (T0 vs T1 P < 0.01). In peripheral leukocyte subpopulations, ROS production shows significant alterations at the considered time points during the soccer season, and strictly and significantly correlates with CK values at every considered time point. Our experimental data indicate that deep redox homeostasis alterations are evident during the soccer season in élite soccer players, and that oxidative stress can be easily monitored, besides using the standard plasma biochemical parameters, by leukocyte ROS production analysis.
Collapse
Affiliation(s)
- Matteo Becatti
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale Morgagni 50, 50134, Florence, Italy.
| | - Amanda Mannucci
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale Morgagni 50, 50134, Florence, Italy
| | - Victoria Barygina
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale Morgagni 50, 50134, Florence, Italy
| | - Gabriele Mascherini
- Department of Experimental and Clinical Medicine, Sports Medicine Center, University of Florence, Florence, Italy
| | - Giacomo Emmi
- Department of Experimental and Clinical Medicine, Center for Autoimmune Systemic Diseases, University of Florence, Florence, Italy
| | - Elena Silvestri
- Department of Experimental and Clinical Medicine, Center for Autoimmune Systemic Diseases, University of Florence, Florence, Italy
| | - Daniel Wright
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale Morgagni 50, 50134, Florence, Italy
| | - Niccolò Taddei
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale Morgagni 50, 50134, Florence, Italy
| | - Giorgio Galanti
- Department of Experimental and Clinical Medicine, Sports Medicine Center, University of Florence, Florence, Italy
| | - Claudia Fiorillo
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale Morgagni 50, 50134, Florence, Italy
| |
Collapse
|
231
|
Lin J, Chuang CC, Zuo L. Potential roles of microRNAs and ROS in colorectal cancer: diagnostic biomarkers and therapeutic targets. Oncotarget 2017; 8:17328-17346. [PMID: 28061475 PMCID: PMC5370044 DOI: 10.18632/oncotarget.14461] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 12/16/2016] [Indexed: 02/06/2023] Open
Abstract
As one of the most commonly diagnosed cancers worldwide, colorectal adenocarcinoma often occurs sporadically in individuals aged 50 or above and there is an increase among younger patients under 50. Routine screenings are recommended for this age group to improve early detection. The multifactorial etiology of colorectal cancer consists of both genetic and epigenetic factors. Recently, studies have shown that the development and progression of colorectal cancer can be attributed to aberrant expression of microRNA. Reactive oxygen species (ROS) that play a key role in cancer cell survival, can also lead to carcinogenesis and cancer exacerbations. Given the rapid accumulating knowledge in the field, an updated review regarding microRNA and ROS in colorectal cancer is necessary. An extensive literature search has been conducted in PubMed/Medline databases to review the roles of microRNAs and ROS in colorectal cancer. Unique microRNA expression in tumor tissue, peripheral blood, and fecal samples from patients with colorectal cancer is outlined. Therapeutic approaches focusing on microRNA and ROS in colorectal cancer treatment is also delineated. This review aims to summarize the newest knowledge on the pathogenesis of colorectal cancer in the hopes of discovering novel diagnostic biomarkers and therapeutic techniques.
Collapse
Affiliation(s)
- Jingmei Lin
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Chia-Chen Chuang
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, OH, USA.,Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH, USA
| | - Li Zuo
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, OH, USA.,Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH, USA
| |
Collapse
|
232
|
Affiliation(s)
- S. Reuter
- Klinik für Innere Medizin III; AG Experimentelle Nephrologie; Universitätsklinikum Jena; Jena Germany
| | - R. Mrowka
- Klinik für Innere Medizin III; AG Experimentelle Nephrologie; Universitätsklinikum Jena; Jena Germany
| |
Collapse
|
233
|
Bilan DS, Belousov VV. New tools for redox biology: From imaging to manipulation. Free Radic Biol Med 2017; 109:167-188. [PMID: 27939954 DOI: 10.1016/j.freeradbiomed.2016.12.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 12/02/2016] [Accepted: 12/03/2016] [Indexed: 12/12/2022]
Abstract
Redox reactions play a key role in maintaining essential biological processes. Deviations in redox pathways result in the development of various pathologies at cellular and organismal levels. Until recently, studies on transformations in the intracellular redox state have been significantly hampered in living systems. The genetically encoded indicators, based on fluorescent proteins, have provided new opportunities in biomedical research. The existing indicators already enable monitoring of cellular redox parameters in different processes including embryogenesis, aging, inflammation, tissue regeneration, and pathogenesis of various diseases. In this review, we summarize information about all genetically encoded redox indicators developed to date. We provide the description of each indicator and discuss its advantages and limitations, as well as points that need to be considered when choosing an indicator for a particular experiment. One chapter is devoted to the important discoveries that have been made by using genetically encoded redox indicators.
Collapse
Affiliation(s)
- Dmitry S Bilan
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
| | | |
Collapse
|
234
|
Zhou T, Lu L, Wu S, Zuo L. Effects of Ionizing Irradiation on Mouse Diaphragmatic Skeletal Muscle. Front Physiol 2017; 8:506. [PMID: 28790924 PMCID: PMC5524972 DOI: 10.3389/fphys.2017.00506] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Accepted: 06/30/2017] [Indexed: 12/22/2022] Open
Abstract
Undesirable exposure of diaphragm to radiation during thoracic radiation therapy has not been fully considered over the past decades. Our study aims to examine the potential biological effects on diaphragm induced by radiation. One-time ionizing irradiation of 10 Gy was applied either to the diaphragmatic region of mice or to the cultured C2C12 myocytes. Each sample was then assayed for muscle function, oxidative stress, or cell viability on days 1, 3, 5, and 7 after irradiation. Our mouse model shows that radiation significantly reduced muscle function on the 5th and 7th days and increased reactive oxygen species (ROS) formation in the diaphragm tissue from days 3 to 7. Similarly, the myocytes exhibited markedly decreased viability and elevated oxidative stress from days 5 to 7 after radiation. These data together suggested that a single dose of 10-Gy radiation is sufficient to cause acute adverse effects on diaphragmatic muscle function, redox balance, and myocyte survival. Furthermore, using the collected data, we developed a physical model to formularize the correlation between diaphragmatic ROS release and time after irradiation, which can be used to predict the biological effects of radiation with a specific dosage. Our findings highlight the importance of developing protective strategies to attenuate oxidative stress and prevent diaphragm injury during radiotherapy.
Collapse
Affiliation(s)
- Tingyang Zhou
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of MedicineColumbus, OH, United States.,Interdisciplinary Biophysics Graduate Program, The Ohio State UniversityColumbus, OH, United States
| | - Lanchun Lu
- Department of Radiation Oncology, The Ohio State University James Cancer HospitalColumbus, OH, United States
| | - Shiyong Wu
- Edison Biotechnology Institute, Ohio UniversityAthens, OH, United States.,Molecular and Cellular Biology Program, Department of Chemistry and Biochemistry, Ohio UniversityAthens, OH, United States
| | - Li Zuo
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of MedicineColumbus, OH, United States.,Interdisciplinary Biophysics Graduate Program, The Ohio State UniversityColumbus, OH, United States
| |
Collapse
|
235
|
Oxidative Stress in Neurodegenerative Diseases: From Molecular Mechanisms to Clinical Applications. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:2525967. [PMID: 28785371 PMCID: PMC5529664 DOI: 10.1155/2017/2525967] [Citation(s) in RCA: 438] [Impact Index Per Article: 62.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 05/26/2017] [Accepted: 06/07/2017] [Indexed: 02/06/2023]
Abstract
Increasing numbers of individuals, particularly the elderly, suffer from neurodegenerative disorders. These diseases are normally characterized by progressive loss of neuron cells and compromised motor or cognitive function. Previous studies have proposed that the overproduction of reactive oxygen species (ROS) may have complex roles in promoting the disease development. Research has shown that neuron cells are particularly vulnerable to oxidative damage due to their high polyunsaturated fatty acid content in membranes, high oxygen consumption, and weak antioxidant defense. However, the exact molecular pathogenesis of neurodegeneration related to the disturbance of redox balance remains unclear. Novel antioxidants have shown great potential in mediating disease phenotypes and could be an area of interest for further research. In this review, we provide an updated discussion on the roles of ROS in the pathological mechanisms of Alzheimer's disease, Huntington's disease, Parkinson's disease, amyotrophic lateral sclerosis, and spinocerebellar ataxia, as well as a highlight on the antioxidant-based therapies for alleviating disease severity.
Collapse
|
236
|
Moore JM, Correa R, Rosenberg SM, Hastings PJ. Persistent damaged bases in DNA allow mutagenic break repair in Escherichia coli. PLoS Genet 2017; 13:e1006733. [PMID: 28727736 PMCID: PMC5542668 DOI: 10.1371/journal.pgen.1006733] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 08/03/2017] [Accepted: 04/03/2017] [Indexed: 12/31/2022] Open
Abstract
Bacteria, yeast and human cancer cells possess mechanisms of mutagenesis upregulated by stress responses. Stress-inducible mutagenesis potentially accelerates adaptation, and may provide important models for mutagenesis that drives cancers, host pathogen interactions, antibiotic resistance and possibly much of evolution generally. In Escherichia coli repair of double-strand breaks (DSBs) becomes mutagenic, using low-fidelity DNA polymerases under the control of the SOS DNA-damage response and RpoS general stress response, which upregulate and allow the action of error-prone DNA polymerases IV (DinB), II and V to make mutations during repair. Pol IV is implied to compete with and replace high-fidelity DNA polymerases at the DSB-repair replisome, causing mutagenesis. We report that up-regulated Pol IV is not sufficient for mutagenic break repair (MBR); damaged bases in the DNA are also required, and that in starvation-stressed cells, these are caused by reactive-oxygen species (ROS). First, MBR is reduced by either ROS-scavenging agents or constitutive activation of oxidative-damage responses, both of which reduce cellular ROS levels. The ROS promote MBR other than by causing DSBs, saturating mismatch repair, oxidizing proteins, or inducing the SOS response or the general stress response. We find that ROS drive MBR through oxidized guanines (8-oxo-dG) in DNA, in that overproduction of a glycosylase that removes 8-oxo-dG from DNA prevents MBR. Further, other damaged DNA bases can substitute for 8-oxo-dG because ROS-scavenged cells resume MBR if either DNA pyrimidine dimers or alkylated bases are induced. We hypothesize that damaged bases in DNA pause the replisome and allow the critical switch from high fidelity to error-prone DNA polymerases in the DSB-repair replisome, thus allowing MBR. The data imply that in addition to the indirect stress-response controlled switch to MBR, a direct cis-acting switch to MBR occurs independently of DNA breakage, caused by ROS oxidation of DNA potentially regulated by ROS regulators.
Collapse
Affiliation(s)
- Jessica M. Moore
- Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Raul Correa
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Susan M. Rosenberg
- Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, Texas, United States of America
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, Texas, United States of America
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, United States of America
| | - P. J. Hastings
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, Texas, United States of America
| |
Collapse
|
237
|
Zhang X, Hu H, Luo J, Deng H, Yu P, Zhang Z, Zhang G, Shan L, Wang Y. A Novel Danshensu-Tetramethylpyrazine Conjugate DT-010 Provides Cardioprotection through the PGC-1α/Nrf2/HO-1 Pathway. Biol Pharm Bull 2017. [PMID: 28637941 DOI: 10.1248/bpb.b17-00313] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In this study, we investigated the cardioprotective mechanisms of action of DT-010, a novel danshensu-tetramethylpyrazine conjugate. DT-010 significantly preserved cell viability and suppressed cell apoptosis in H9c2 cells injured by tert-butylhydroperoxide (t-BHP), iodoacetic acid (IAA) and hypoxia-reoxygenation. In addition, DT-010 pre-treatment reduced the intracellular level of free radicals including superoxide anion (·O2-), hydroxyl radical (·OH) and peroxynitrite anion (ONOO-) after t-BHP exposure. Moreover, DT-010 up-regulated the protein expression of peroxisome proliferator-activated receptor gamma coactivator 1 alpha (PGC-1α) and nuclear factor-E2-related factor 2 (Nrf2) as well as mitochondrial transcription factor A (Tfam) and heme oxygenase-1 (HO-1) in H9c2 cells. DT-010 also triggered Nrf2 nuclear translocation. In a rat myocardial ischemia-reperfusion model, DT-010 significantly alleviated myocardial infarction. The results indicated that DT-010 may be a promising candidate for the treatment of cardiovascular diseases, particularly myocardial ischemia and reperfusion injury.
Collapse
Affiliation(s)
- Xiaojing Zhang
- Institute of New Drug Research and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine, Jinan University College of Pharmacy
| | - Huihui Hu
- Institute of New Drug Research and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine, Jinan University College of Pharmacy
| | - Jingxiong Luo
- Institute of New Drug Research and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine, Jinan University College of Pharmacy
| | - Huixing Deng
- Institute of New Drug Research and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine, Jinan University College of Pharmacy
| | - Pei Yu
- Institute of New Drug Research and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine, Jinan University College of Pharmacy
| | - Zaijun Zhang
- Institute of New Drug Research and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine, Jinan University College of Pharmacy
| | - Gaoxiao Zhang
- Institute of New Drug Research and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine, Jinan University College of Pharmacy
| | - Luchen Shan
- Institute of New Drug Research and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine, Jinan University College of Pharmacy
| | - Yuqiang Wang
- Institute of New Drug Research and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine, Jinan University College of Pharmacy
| |
Collapse
|
238
|
Abstract
More and more people are living into the 90s or becoming centenarians. But, the gift of increased ‘age span’ seldom equates with an improved ‘health-span’. Governments across the world are expressing concern about the epidemic of chronic disease, and have responded by initiating policies that make prevention, reduction and treatment of chronic disease, a public health priority. But understanding, how to age long and well, with the avoidance of chronic disease and later life complex disease morbidity is challenging. While inherited genes have an undoubted role to play in the chance of maintaining good health or conversely a predilection to developing disease and chronic ill health, there is increasing evidence that behavioural and environmental life-style choices may contribute up to 50% of the variability of human lifespan. Physical exercise is readily available to everyone, and is a simple cheap and effective form of life-style intervention. Exercise appears to help maintain good health and to reduce the risk of developing chronic disease and ill health. Evidence suggests that physical activity improves well-being across many health domains through out life, continues to offer important health benefits in older age groups and tracks with a ‘healthy ageing’ profile. Although many of the molecular pathways remain to be fully identified, here we discuss how physical activity and exercise is understood to produce changes in the human epigenome, which have the potential to enhance cognitive and psychological health, improve muscular fitness, and lead to better ageing with improved quality of life in older age.
Collapse
|
239
|
Choy KW, Lau YS, Murugan D, Mustafa MR. Chronic treatment with paeonol improves endothelial function in mice through inhibition of endoplasmic reticulum stress-mediated oxidative stress. PLoS One 2017; 12:e0178365. [PMID: 28562691 PMCID: PMC5451063 DOI: 10.1371/journal.pone.0178365] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 05/11/2017] [Indexed: 02/06/2023] Open
Abstract
Endoplasmic reticulum (ER) stress leads to endothelial dysfunction which is commonly associated in the pathogenesis of several cardiovascular diseases. We explored the vascular protective effects of chronic treatment with paeonol (2'-hydroxy-4'-methoxyacetophenone), the major compound from the root bark of Paeonia suffruticosa on ER stress-induced endothelial dysfunction in mice. Male C57BL/6J mice were injected intraperitoneally with ER stress inducer, tunicamycin (1 mg/kg/week) for 2 weeks to induce ER stress. The animals were co-administered with or without paeonol (20 mg/kg/oral gavage), reactive oxygen species (ROS) scavenger, tempol (20 mg/kg/day) or ER stress inhibitor, tauroursodeoxycholic acid (TUDCA, 150 mg/kg/day) respectively. Blood pressure and body weight were monitored weekly and at the end of treatment, the aorta was isolated for isometric force measurement. Protein associated with ER stress (GRP78, ATF6 and p-eIF2α) and oxidative stress (NOX2 and nitrotyrosine) were evaluated using Western blotting. Nitric oxide (NO) bioavailability were determined using total nitrate/nitrite assay and western blotting (phosphorylation of eNOS protein). ROS production was assessed by en face dihydroethidium staining and lucigenin-enhanced chemiluminescence assay, respectively. Our results revealed that mice treated with tunicamycin showed an increased blood pressure, reduction in body weight and impairment of endothelium-dependent relaxations (EDRs) of aorta, which were ameliorated by co-treatment with either paeonol, TUDCA and tempol. Furthermore, paeonol reduced the ROS level in the mouse aorta and improved NO bioavailability in tunicamycin treated mice. These beneficial effects of paeonol observed were comparable to those produced by TUDCA and tempol, suggesting that the actions of paeonol may involve inhibition of ER stress-mediated oxidative stress pathway. Taken together, the present results suggest that chronic treatment with paeonol preserved endothelial function and normalized blood pressure in mice induced by tunicamycin in vivo through the inhibition of ER stress-associated ROS.
Collapse
Affiliation(s)
- Ker Woon Choy
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Yeh Siang Lau
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Dharmani Murugan
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Mohd Rais Mustafa
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
- * E-mail:
| |
Collapse
|
240
|
Sheng M, Liu P, Mao D, Ge Y, Lu H. The impact of hyperoxia on brain activity: A resting-state and task-evoked electroencephalography (EEG) study. PLoS One 2017; 12:e0176610. [PMID: 28464001 PMCID: PMC5412995 DOI: 10.1371/journal.pone.0176610] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 04/13/2017] [Indexed: 12/17/2022] Open
Abstract
A better understanding of the effect of oxygen on brain electrophysiological activity may provide a more mechanistic insight into clinical studies that use oxygen treatment in pathological conditions, as well as in studies that use oxygen to calibrate functional magnetic resonance imaging (fMRI) signals. This study applied electroencephalography (EEG) in healthy subjects and investigated how high a concentration of oxygen in inhaled air (i.e., normobaric hyperoxia) alters brain activity under resting-state and task-evoked conditions. Study 1 investigated its impact on resting EEG and revealed that hyperoxia suppressed α (8-13Hz) and β (14-35Hz) band power (by 15.6±2.3% and 14.1±3.1%, respectively), but did not change the δ (1-3Hz), θ (4-7Hz), and γ (36-75Hz) bands. Sham control experiments did not result in such changes. Study 2 reproduced these findings, and, furthermore, examined the effect of hyperoxia on visual stimulation event-related potentials (ERP). It was found that the main peaks of visual ERP, specifically N1 and P2, were both delayed during hyperoxia compared to normoxia (P = 0.04 and 0.02, respectively). In contrast, the amplitude of the peaks did not show a change. Our results suggest that hyperoxia has a pronounced effect on brain neural activity, for both resting-state and task-evoked potentials.
Collapse
Affiliation(s)
- Min Sheng
- Advanced Imaging Research Center, The University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Peiying Liu
- Advanced Imaging Research Center, The University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Deng Mao
- Advanced Imaging Research Center, The University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Yulin Ge
- Department of Radiology, New York University Langone Medical Center, New York, New York, United States of America
| | - Hanzhang Lu
- Advanced Imaging Research Center, The University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- * E-mail:
| |
Collapse
|
241
|
Laranjeiro R, Harinath G, Burke D, Braeckman BP, Driscoll M. Single swim sessions in C. elegans induce key features of mammalian exercise. BMC Biol 2017; 15:30. [PMID: 28395669 PMCID: PMC5385602 DOI: 10.1186/s12915-017-0368-4] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 03/15/2017] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Exercise exerts remarkably powerful effects on metabolism and health, with anti-disease and anti-aging outcomes. Pharmacological manipulation of exercise benefit circuits might improve the health of the sedentary and the aging populations. Still, how exercised muscle signals to induce system-wide health improvement remains poorly understood. With a long-term interest in interventions that promote animal-wide health improvement, we sought to define exercise options for Caenorhabditis elegans. RESULTS Here, we report on the impact of single swim sessions on C. elegans physiology. We used microcalorimetry to show that C. elegans swimming has a greater energy cost than crawling. Animals that swam continuously for 90 min specifically consumed muscle fat supplies and exhibited post-swim locomotory fatigue, with both muscle fat depletion and fatigue indicators recovering within 1 hour of exercise cessation. Quantitative polymerase chain reaction (qPCR) transcript analyses also suggested an increase in fat metabolism during the swim, followed by the downregulation of specific carbohydrate metabolism transcripts in the hours post-exercise. During a 90 min swim, muscle mitochondria matrix environments became more oxidized, as visualized by a localized mitochondrial reduction-oxidation-sensitive green fluorescent protein reporter. qPCR data supported specific transcriptional changes in oxidative stress defense genes during and immediately after a swim. Consistent with potential antioxidant defense induction, we found that a single swim session sufficed to confer protection against juglone-induced oxidative stress inflicted 4 hours post-exercise. CONCLUSIONS In addition to showing that even a single swim exercise bout confers physiological changes that increase robustness, our data reveal that acute swimming-induced changes share common features with some acute exercise responses reported in humans. Overall, our data validate an easily implemented swim experience as C. elegans exercise, setting the foundation for exploiting the experimental advantages of this model to genetically or pharmacologically identify the exercise-associated molecules and signaling pathways that confer system-wide health benefits.
Collapse
Affiliation(s)
- Ricardo Laranjeiro
- Department of Molecular Biology and Biochemistry, Nelson Biological Laboratories, Rutgers, The State University of New Jersey, Piscataway, NJ USA
| | - Girish Harinath
- Department of Molecular Biology and Biochemistry, Nelson Biological Laboratories, Rutgers, The State University of New Jersey, Piscataway, NJ USA
| | - Daniel Burke
- Department of Molecular Biology and Biochemistry, Nelson Biological Laboratories, Rutgers, The State University of New Jersey, Piscataway, NJ USA
| | | | - Monica Driscoll
- Department of Molecular Biology and Biochemistry, Nelson Biological Laboratories, Rutgers, The State University of New Jersey, Piscataway, NJ USA
| |
Collapse
|
242
|
Demion M, Oger C, Vigor C, Thireau J, Guennec JYL, Durand T, Galano JM, Lee JCY. Two sides of the same coin: NEO-PUFAs in Rett syndrome and post-infarction cardiac arrhythmias. EUR J LIPID SCI TECH 2017. [DOI: 10.1002/ejlt.201600320] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Marie Demion
- Inserm U1046-UMR CNRS 9214 Physiologie et Médecine Expérimentale du cœur et des muscles−PHYMEDEX; Université de Montpellier; Montpellier France
| | - Camille Oger
- Institut des Biomolécules Max Mousseron, (IBMM) UMR 5247; CNRS Université de Montpellier, ENSCM; Montpellier France
| | - Claire Vigor
- Institut des Biomolécules Max Mousseron, (IBMM) UMR 5247; CNRS Université de Montpellier, ENSCM; Montpellier France
| | - Jérôme Thireau
- Inserm U1046-UMR CNRS 9214 Physiologie et Médecine Expérimentale du cœur et des muscles−PHYMEDEX; Université de Montpellier; Montpellier France
| | - Jean-Yves Le Guennec
- Inserm U1046-UMR CNRS 9214 Physiologie et Médecine Expérimentale du cœur et des muscles−PHYMEDEX; Université de Montpellier; Montpellier France
| | - Thierry Durand
- Institut des Biomolécules Max Mousseron, (IBMM) UMR 5247; CNRS Université de Montpellier, ENSCM; Montpellier France
| | - Jean-Marie Galano
- Institut des Biomolécules Max Mousseron, (IBMM) UMR 5247; CNRS Université de Montpellier, ENSCM; Montpellier France
| | | |
Collapse
|
243
|
Persson PB, Persson AB. Vitamin supplementation. Acta Physiol (Oxf) 2017; 219:537-539. [PMID: 28103422 DOI: 10.1111/apha.12850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- P B Persson
- Institute of Vegetative Physiology, Charité-Universitaetsmedizin Berlin, Berlin, Germany
| | - A B Persson
- Charité-Universitaetsmedizin Berlin, Berlin, Germany
| |
Collapse
|
244
|
Debevec T, Millet GP, Pialoux V. Hypoxia-Induced Oxidative Stress Modulation with Physical Activity. Front Physiol 2017; 8:84. [PMID: 28243207 PMCID: PMC5303750 DOI: 10.3389/fphys.2017.00084] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 01/30/2017] [Indexed: 12/17/2022] Open
Abstract
Increased oxidative stress, defined as an imbalance between prooxidants and antioxidants, resulting in molecular damage and disruption of redox signaling, is associated with numerous pathophysiological processes and known to exacerbate chronic diseases. Prolonged systemic hypoxia, induced either by exposure to terrestrial altitude or a reduction in ambient O2 availability is known to elicit oxidative stress and thereby alter redox balance in healthy humans. The redox balance modulation is also highly dependent on the level of physical activity. For example, both high-intensity exercise and inactivity, representing the two ends of the physical activity spectrum, are known to promote oxidative stress. Numerous to-date studies indicate that hypoxia and exercise can exert additive influence upon redox balance alterations. However, recent evidence suggests that moderate physical activity can attenuate altitude/hypoxia-induced oxidative stress during long-term hypoxic exposure. The purpose of this review is to summarize recent findings on hypoxia-related oxidative stress modulation by different activity levels during prolonged hypoxic exposures and examine the potential mechanisms underlying the observed redox balance changes. The paper also explores the applicability of moderate activity as a strategy for attenuating hypoxia-related oxidative stress. Moreover, the potential of such moderate intensity activities used to counteract inactivity-related oxidative stress, often encountered in pathological, elderly and obese populations is also discussed. Finally, future research directions for investigating interactive effects of altitude/hypoxia and exercise on oxidative stress are proposed.
Collapse
Affiliation(s)
- Tadej Debevec
- Department of Automation, Biocybernetics and Robotics, Jozef Stefan InstituteLjubljana, Slovenia
| | - Grégoire P. Millet
- Faculty of Biology and Medicine, Institute of Sport Sciences, University of LausanneLausanne, Switzerland
| | - Vincent Pialoux
- Laboratoire Interuniversitaire de Biologie de la Motricité EA 7424, Univ Lyon, Université Claude Bernard Lyon 1Villeurbanne, France
- Institut Universitaire de FranceParis, France
| |
Collapse
|
245
|
Ghanizadeh Kazerouni E, Franklin CE, Seebacher F. Parental exposure modulates the effects of
UV
‐B on offspring in guppies. Funct Ecol 2017. [DOI: 10.1111/1365-2435.12817] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Craig E. Franklin
- School of Biological Sciences The University of Queensland St. Lucia QLD4072 Australia
| | - Frank Seebacher
- School of Life and Environmental Sciences A08 The University of Sydney Sydney NSW2006 Australia
| |
Collapse
|
246
|
Determination of the activity of hydrogen peroxide scavenging by using blue-emitting glucose oxidase–stabilized gold nanoclusters as fluorescent nanoprobes and a Fenton reaction that induces fluorescence quenching. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2110-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
247
|
Charles AL, Guilbert AS, Guillot M, Talha S, Lejay A, Meyer A, Kindo M, Wolff V, Bouitbir J, Zoll J, Geny B. Muscles Susceptibility to Ischemia-Reperfusion Injuries Depends on Fiber Type Specific Antioxidant Level. Front Physiol 2017; 8:52. [PMID: 28220081 PMCID: PMC5292410 DOI: 10.3389/fphys.2017.00052] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 01/19/2017] [Indexed: 01/02/2023] Open
Abstract
Muscle injury resulting from ischemia-reperfusion largely aggravates patient prognosis but whether and how muscle phenotype modulates ischemia-reperfusion-induced mitochondrial dysfunction remains to be investigated. We challenged the hypothesis that glycolytic muscles are more prone to ischemia-reperfusion-induced injury than oxidative skeletal muscles. We therefore determined simultaneously the effect of 3 h of ischemia induced by aortic clamping followed by 2 h of reperfusion (IR, n = 11) on both gastrocnemius and soleus muscles, as compared to control animals (C, n = 11). Further, we investigated whether tempol, an antioxidant mimicking superoxide dismutase, might compensate a reduced defense system, likely characterizing glycolytic muscles (IR-Tempol, n = 7). In the glycolytic gastrocnemius muscle, as compared to control, ischemia-reperfusion significantly decreased mitochondrial respiration (-30.28 ± 6.16%, p = 0.003), increased reactive oxygen species production (+79.15 ± 28.72%, p = 0.04), and decreased reduced glutathione (-28.19 ± 6.80%, p = 0.011). Less deleterious effects were observed in the oxidative soleus muscle (-6.44 ± 6.30%, +4.32 ± 16.84%, and -8.07 ± 10.84%, respectively), characterized by enhanced antioxidant defenses (0.63 ± 0.05 in gastrocnemius vs. 1.24 ± 0.08 μmol L-1 g-1 in soleus). Further, when previously treated with tempol, glycolytic muscle was largely protected against the deleterious effects of ischemia-reperfusion. Thus, oxidative skeletal muscles are more protected than glycolytic ones against ischemia-reperfusion, thanks to their antioxidant pool. Such pivotal data support that susceptibility to ischemia-reperfusion-induced injury differs between organs, depending on their metabolic phenotypes. This suggests a need to adapt therapeutic strategies to the specific antioxidant power of the target organ to be protected.
Collapse
Affiliation(s)
- Anne-Laure Charles
- Equipe d'accueil 3072, Faculté de Médecine, Fédération de Médecine Translationnelle, Université de StrasbourgStrasbourg, France; Service de Physiologie et d'Explorations Fonctionnelles, Pôle de Pathologie Thoracique, Nouvel Hôpital Civil, CHRU de StrasbourgStrasbourg, France
| | - Anne-Sophie Guilbert
- Equipe d'accueil 3072, Faculté de Médecine, Fédération de Médecine Translationnelle, Université de StrasbourgStrasbourg, France; Service de Réanimation Médico-Chirurgicale Pédiatrique Spécialisée, Hôpital de Hautepierre, CHRU de StrasbourgStrasbourg, France
| | - Max Guillot
- Equipe d'accueil 3072, Faculté de Médecine, Fédération de Médecine Translationnelle, Université de StrasbourgStrasbourg, France; Service de Réanimation Médicale, Hôpital de Hautepierre, CHRU de StrasbourgStrasbourg, France
| | - Samy Talha
- Equipe d'accueil 3072, Faculté de Médecine, Fédération de Médecine Translationnelle, Université de StrasbourgStrasbourg, France; Service de Physiologie et d'Explorations Fonctionnelles, Pôle de Pathologie Thoracique, Nouvel Hôpital Civil, CHRU de StrasbourgStrasbourg, France
| | - Anne Lejay
- Equipe d'accueil 3072, Faculté de Médecine, Fédération de Médecine Translationnelle, Université de StrasbourgStrasbourg, France; Service de Physiologie et d'Explorations Fonctionnelles, Pôle de Pathologie Thoracique, Nouvel Hôpital Civil, CHRU de StrasbourgStrasbourg, France
| | - Alain Meyer
- Equipe d'accueil 3072, Faculté de Médecine, Fédération de Médecine Translationnelle, Université de StrasbourgStrasbourg, France; Service de Physiologie et d'Explorations Fonctionnelles, Pôle de Pathologie Thoracique, Nouvel Hôpital Civil, CHRU de StrasbourgStrasbourg, France
| | - Michel Kindo
- Equipe d'accueil 3072, Faculté de Médecine, Fédération de Médecine Translationnelle, Université de StrasbourgStrasbourg, France; Service de Chirurgie Cardio-Vasculaire, Pôle d'activité Médico-chirurgicale Cardiovasculaire, Nouvel Hôpital Civil, CHRU de StrasbourgStrasbourg, France
| | - Valérie Wolff
- Equipe d'accueil 3072, Faculté de Médecine, Fédération de Médecine Translationnelle, Université de StrasbourgStrasbourg, France; Unité neurovasculaire, Hôpital de Hautepierre, CHRU de StrasbourgStrasbourg, France
| | - Jamal Bouitbir
- Division of Clinical Pharmacology and Toxicology, University Hospital Basel Basel, Switzerland
| | - Joffrey Zoll
- Equipe d'accueil 3072, Faculté de Médecine, Fédération de Médecine Translationnelle, Université de StrasbourgStrasbourg, France; Service de Physiologie et d'Explorations Fonctionnelles, Pôle de Pathologie Thoracique, Nouvel Hôpital Civil, CHRU de StrasbourgStrasbourg, France
| | - Bernard Geny
- Equipe d'accueil 3072, Faculté de Médecine, Fédération de Médecine Translationnelle, Université de StrasbourgStrasbourg, France; Service de Physiologie et d'Explorations Fonctionnelles, Pôle de Pathologie Thoracique, Nouvel Hôpital Civil, CHRU de StrasbourgStrasbourg, France
| |
Collapse
|
248
|
Zuo L, Chuang CC, Clark AD, Garrison DE, Kuhlman JL, Sypert DC. Reactive Oxygen Species in COPD-Related Vascular Remodeling. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 967:399-411. [PMID: 29047102 DOI: 10.1007/978-3-319-63245-2_26] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The pathogenesis of chronic obstructive pulmonary disease (COPD) is a multifaceted process involving the alteration of pulmonary vasculature. Such vascular remodeling can be associated with inflammation, shear stress, and hypoxia-conditions commonly seen in patients with lung diseases. Particularly, the overproduction of reactive oxygen species (ROS) in the diseased lungs contributes greatly to pulmonary vascular remodeling. ROS play an important role in vascular homeostasis, yet excessive ROS can alter pulmonary vasculature and impair lung function, as implicated in COPD at all stages. Increased inflammatory cell infiltration and endothelial dysfunction both correspond to the severity of COPD. As a byproduct of vascular remodeling, pulmonary hypertension negatively affects the long-term survival rate of COPD patients. While there is currently no cure for COPD, several treatment options have focused on alleviating COPD symptoms. Interventions such as long-term oxygen therapy, endothelium-targeted treatment, and pharmacological therapies show promising results in improving the life span of COPD patients and attenuating the progression of pulmonary hypertension. In this chapter, we aim to discuss the contributing factors of pulmonary vascular remodeling in COPD with an emphasis on the ROS, as well as potential redox treatments for COPD-related vascular remodeling.
Collapse
Affiliation(s)
- Li Zuo
- Molecular Physiology and Rehabilitation Research Laboratory, Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA.
| | - Chia-Chen Chuang
- Molecular Physiology and Rehabilitation Research Laboratory, Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
| | - Alexander D Clark
- Molecular Physiology and Rehabilitation Research Laboratory, Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
| | - Davis E Garrison
- Molecular Physiology and Rehabilitation Research Laboratory, Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
| | - Jamie L Kuhlman
- Molecular Physiology and Rehabilitation Research Laboratory, Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
| | - David C Sypert
- Molecular Physiology and Rehabilitation Research Laboratory, Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
| |
Collapse
|
249
|
Mittler R. ROS Are Good. TRENDS IN PLANT SCIENCE 2017; 22:11-19. [PMID: 27666517 DOI: 10.1016/j.tplants.2016.08.002] [Citation(s) in RCA: 1444] [Impact Index Per Article: 206.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 07/29/2016] [Accepted: 08/07/2016] [Indexed: 05/17/2023]
Abstract
Reactive oxygen species (ROS) are thought to play a dual role in plant biology. They are required for many important signaling reactions, but are also toxic byproducts of aerobic metabolism. Recent studies revealed that ROS are necessary for the progression of several basic biological processes including cellular proliferation and differentiation. Moreover, cell death-that was previously thought to be the outcome of ROS directly killing cells by oxidation, in other words via oxidative stress-is now considered to be the result of ROS triggering a physiological or programmed pathway for cell death. This Opinion focuses on the possibility that ROS are beneficial to plants, supporting cellular proliferation, physiological function, and viability, and that maintaining a basal level of ROS in cells is essential for life.
Collapse
Affiliation(s)
- Ron Mittler
- Department of Biological Sciences and BioDiscovery Institute, College of Arts and Sciences, University of North Texas, 1155 Union Circle #305220, Denton, TX 76203, USA.
| |
Collapse
|
250
|
Chlorinated Phospholipids and Fatty Acids: (Patho)physiological Relevance, Potential Toxicity, and Analysis of Lipid Chlorohydrins. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:8386362. [PMID: 28090245 PMCID: PMC5206476 DOI: 10.1155/2016/8386362] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 10/24/2016] [Accepted: 11/06/2016] [Indexed: 12/17/2022]
Abstract
Chlorinated phospholipids are formed by the reaction of hypochlorous acid (HOCl), generated by the enzyme myeloperoxidase under inflammatory conditions, and the unsaturated fatty acyl residues or the head group. In the first case the generated chlorohydrins are both proinflammatory and cytotoxic, thus having a significant impact on the structures of biomembranes. The latter case leads to chloramines, the properties of which are by far less well understood. Since HOCl is also widely used as a disinfecting and antibacterial agent in medicinal, industrial, and domestic applications, it may represent an additional source of danger in the case of abuse or mishandling. This review discusses the reaction behavior of in vivo generated HOCl and biomolecules like DNA, proteins, and carbohydrates but will focus on phospholipids. Not only the beneficial and pathological (toxic) effects of chlorinated lipids but also the importance of these chlorinated species is discussed. Some selected cleavage products of (chlorinated) phospholipids and plasmalogens such as lysophospholipids, (chlorinated) free fatty acids and α-chloro fatty aldehydes, which are all well known to massively contribute to inflammatory diseases associated with oxidative stress, will be also discussed. Finally, common analytical methods to study these compounds will be reviewed with focus on mass spectrometric techniques.
Collapse
|