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Keshta AT, Fathallah AM, Attia YA, Salem EA, Watad SH. Ameliorative effect of selenium nanoparticles on testicular toxicity induced by cisplatin in adult male rats. Food Chem Toxicol 2023; 179:113979. [PMID: 37544473 DOI: 10.1016/j.fct.2023.113979] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/31/2023] [Accepted: 08/02/2023] [Indexed: 08/08/2023]
Abstract
Cisplatin (Cis) is a treatment for testicular germ-cell tumors (TGCTs). Unfortunately, it causes testicular toxicity due to releasing reactive oxygen species (ROS) causing damage to testicular cells and chromosomes. The current study aimed to investigate the ameliorative effect of selenium nanoparticles (SeNPs) against cisplatin testicular toxicity in male rats by assessment of body weight, testis weight, oxidative stress markers in testis homogenates as (malondialdehyde (MDA), Superoxide dismutase (SOD), Glutathione reduced (GSH), Glutathione peroxidase (GSH ∼ PX) and Catalase (CAT)), gene expression, testosterone concentration (T), sperm characteristics (count, motility and abnormality) and testicular histopathology. Methods: Thirty adult male rats divided equally into four groups; a single dose intraperitoneally injection of cisplatin (10 mg/kg) and selenium nanoparticles (2 mg/kg/day) were administrated alone or in combination. Cis group showed a decrease in body weight, testis weight, antioxidant activities (SOD, GSH, GSH ∼ PX and CAT), T concentration and steroidogenetic expression, the data recorded an increase in MDA levels and sperm abnormality, meanwhile histopathology of testis sections showed degenerative changes in the seminiferous tubules. The co-administration of selenium nanoparticles ameliorated the harmful effects of cisplatin. In conclusion; SeNPs through its antioxidant potential may be useful to prevent the testicular toxicity induced by cisplatin to the rat testis by reducing oxidative stress.
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Affiliation(s)
- Akaber T Keshta
- Biochemistry Department, Faculty of science, Zagazig University, Zagazig, Egypt.
| | - Ahmed M Fathallah
- Biochemistry Department, Faculty of science, Zagazig University, Zagazig, Egypt.
| | - Yasser A Attia
- National Institute of Laser Enhanced Sciences, Cairo University, Giza, Egypt.
| | - Emad A Salem
- Urology and Andrology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
| | - Shimaa H Watad
- Biochemistry Department, Faculty of science, Zagazig University, Zagazig, Egypt.
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Wang X, Han Y, Chen F, Wang M, Xiao Y, Wang H, Xu L, Liu W. Glutathione Peroxidase 1 Protects Against Peroxynitrite-Induced Spiral Ganglion Neuron Damage Through Attenuating NF-κB Pathway Activation. Front Cell Neurosci 2022; 16:841731. [PMID: 35401119 PMCID: PMC8983938 DOI: 10.3389/fncel.2022.841731] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/22/2022] [Indexed: 11/13/2022] Open
Abstract
Glutathione peroxidase 1 (GPX1) is a crucial antioxidant enzyme that prevented the harmful accumulation of intra-cellular hydrogen peroxide. GPX1 might contribute in limiting cochlear damages associated with aging or acoustic overexposure, but the function of GPX1 in the inner ear remains unclear. The present study was designed to investigate the effect of GPX1 on cochlear spiral ganglion neurons (SGNs) against oxidative stress induced by peroxynitrite, a versatile oxidant generated by the reaction of superoxide anion and nitric oxide. Here, we first found that the expression of GPX1 in cultured SGNs was downregulated after peroxynitrite exposure. Then, the GPX1 mimic ebselen and the gpx1 knockout (gpx1–/–) mice were used to investigate the role of GPX1 in SGNs treated with peroxynitrite. The pretreatment with ebselen significantly increased the survived SGN numbers, inhibited the apoptosis, and enhanced the expression of 4-HNE in the cultured SGNs of peroxynitrite + ebselen group compared with the peroxynitrite-only group. On the contrary, remarkably less survived SGNs, more apoptotic SGNs, and the higher expression level of 4-HNE were detected in the peroxynitrite + gpx1–/– group compared with the peroxynitrite-only group. Furthermore, rescue experiments with antioxidant N-acetylcysteine (NAC) showed that the expression of 4-HNE and the apoptosis in SGNs were significantly decreased, while the number of surviving SGNs was increased in peroxynitrite + NAC group compared the peroxynitrite-only group and in peroxynitrite + gpx1–/– + NAC group vs. peroxynitrite + gpx1–/– group. Finally, mechanistic studies showed that the activation of nuclear factor-kappa B (NF-κB) was involved in the SGNs damage caused by peroxynitrite and that GPX1 protected SGNs against peroxynitrite-induced damage, at least in part, via blocking the NF-κB pathway activation. Collectively, our findings suggest that GPX1 might serve as a new target for the prevention of nitrogen radical-induced SGNs damage and hearing loss.
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Affiliation(s)
- Xue Wang
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Shandong Institute of Otorhinolaryngology, Jinan, China
| | - Yuechen Han
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Shandong Institute of Otorhinolaryngology, Jinan, China
| | - Fang Chen
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Shandong Institute of Otorhinolaryngology, Jinan, China
| | - Man Wang
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Shandong Institute of Otorhinolaryngology, Jinan, China
| | - Yun Xiao
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Shandong Institute of Otorhinolaryngology, Jinan, China
| | - Haibo Wang
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Shandong Institute of Otorhinolaryngology, Jinan, China
| | - Lei Xu
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Shandong Institute of Otorhinolaryngology, Jinan, China
| | - Wenwen Liu
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Shandong Institute of Otorhinolaryngology, Jinan, China
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Detection of Intracellular Reactive Oxidative Species Using the Fluorescent Probe Hydroxyphenyl Fluorescein. Methods Mol Biol 2021; 2274:207-215. [PMID: 34050474 DOI: 10.1007/978-1-0716-1258-3_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Various fluorescent probes for the detection of intracellular reactive oxidative species (ROS) have been developed because ROS levels are closely associated with cellular states. Here, we describe a method for detection of intracellular ROS in living cells using the fluorescent probe, hydroxyphenyl fluorescein (HPF), which detects hydroxyl radicals and peroxynitrite. NIH3T3 cells and p53 knockout (p53-/-) mouse embryonic fibroblasts (MEFs) were transformed by expressing oncogenic RAS using a retrovirus system. The cells were treated with HPF at 37 °C for 30 min, and subsequently, images were acquired using a confocal fluorescence microscope at an excitation wavelength of 488 nm after washing with PBS.
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Gao S, Zhang W, Wang R, Hopkins SP, Spagnoli JC, Racin M, Bai L, Li L, Jiang W, Yang X, Lee C, Nagata K, Howerth EW, Handa H, Xie J, Ma Q, Kumar A. Nanoparticles Encapsulating Nitrosylated Maytansine To Enhance Radiation Therapy. ACS NANO 2020; 14:1468-1481. [PMID: 31939662 DOI: 10.1021/acsnano.9b05976] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Radiotherapy remains a major treatment modality for cancer types such as non-small cell lung carcinoma (or NSCLC). To enhance treatment efficacy at a given radiation dose, radiosensitizers are often used during radiotherapy. Herein, we report a nanoparticle agent that can selectively sensitize cancer cells to radiotherapy. Specifically, we nitrosylated maytansinoid DM1 and then loaded the resulting prodrug, DM1-NO, onto poly(lactide-co-glycolic)-block-poly(ethylene glycol) (PLGA-b-PEG) nanoparticles. The toxicity of DM1 is suppressed by nanoparticle encapsulation and nitrosylation, allowing the drug to be delivered to tumors through the enhanced permeability and retention effect. Under irradiation to tumors, the oxidative stress is elevated, leading to the cleavage of the S-N bond and the release of DM1 and nitric oxide (NO). DM1 inhibits microtubule polymerization and enriches cells at the G2/M phase, which is more radiosensitive. NO under irradiation forms highly toxic radicals such as peroxynitrites, which also contribute to tumor suppression. The two components work synergistically to enhance radiotherapy outcomes, which was confirmed in vitro by clonogenic assays and in vivo with H1299 tumor-bearing mice. Our studies suggest the great promise of DM1-NO PLGA nanoparticles in enhancing radiotherapy against NSCLC and potentially other tumor types.
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MESH Headings
- Animals
- Antineoplastic Agents, Phytogenic/chemistry
- Antineoplastic Agents, Phytogenic/pharmacology
- Capsules/chemistry
- Carcinoma, Non-Small-Cell Lung/metabolism
- Carcinoma, Non-Small-Cell Lung/pathology
- Carcinoma, Non-Small-Cell Lung/therapy
- Cell Cycle Checkpoints/drug effects
- Cell Proliferation/drug effects
- Cell Survival/drug effects
- Drug Screening Assays, Antitumor
- Female
- Lung Neoplasms/metabolism
- Lung Neoplasms/pathology
- Lung Neoplasms/therapy
- Maytansine/chemistry
- Maytansine/pharmacology
- Mice
- Mice, Nude
- Nanoparticles/chemistry
- Neoplasms, Experimental/metabolism
- Neoplasms, Experimental/pathology
- Neoplasms, Experimental/therapy
- Oxidative Stress/drug effects
- Particle Size
- Surface Properties
- Tumor Cells, Cultured
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Affiliation(s)
- Shi Gao
- Department of Nuclear Medicine , China-Japan Union Hospital of Jilin University , Changchun , Jilin 130033 , China
| | - Weizhong Zhang
- Department of Chemistry , University of Georgia , Athens , Georgia 30602 , United States
| | - Renjie Wang
- Department of Nuclear Medicine , China-Japan Union Hospital of Jilin University , Changchun , Jilin 130033 , China
| | - Sean P Hopkins
- College of Engineering , University of Georgia , Athens , Georgia 30602 , United States
| | - Jonathan C Spagnoli
- Department of Chemistry , University of Georgia , Athens , Georgia 30602 , United States
| | - Mohammed Racin
- Department of Chemistry , University of Georgia , Athens , Georgia 30602 , United States
| | - Lin Bai
- Department of Nuclear Medicine , China-Japan Union Hospital of Jilin University , Changchun , Jilin 130033 , China
| | - Lu Li
- Department of Nuclear Medicine , China-Japan Union Hospital of Jilin University , Changchun , Jilin 130033 , China
| | - Wen Jiang
- Department of Chemistry , University of Georgia , Athens , Georgia 30602 , United States
| | - Xueyuan Yang
- Department of Chemistry , University of Georgia , Athens , Georgia 30602 , United States
| | - Chaebin Lee
- Department of Chemistry , University of Georgia , Athens , Georgia 30602 , United States
| | - Koichi Nagata
- Veterinary Biosciences & Diagnostic Imaging, College of Veterinary Medicine , University of Georgia , Athens , Georgia 30602 , United States
| | - Elizabeth W Howerth
- Department of Pathology, College of Veterinary Medicine , University of Georgia , Athens , Georgia 30602 , United States
| | - Hitesh Handa
- College of Engineering , University of Georgia , Athens , Georgia 30602 , United States
| | - Jin Xie
- Department of Chemistry , University of Georgia , Athens , Georgia 30602 , United States
| | - Qingjie Ma
- Department of Nuclear Medicine , China-Japan Union Hospital of Jilin University , Changchun , Jilin 130033 , China
| | - Anil Kumar
- Department of Chemistry , University of Georgia , Athens , Georgia 30602 , United States
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Evaluation of human macrophage functional state by voltammetric monitoring of nitrite ions. Anal Bioanal Chem 2020; 412:5097-5104. [PMID: 31993724 DOI: 10.1007/s00216-020-02399-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Revised: 12/28/2019] [Accepted: 01/08/2020] [Indexed: 10/25/2022]
Abstract
The method for assessing the level of nitric oxide (II) (NO) by voltammetric monitoring of nitrite ions was carried out on models M1 and M2 of polarized macrophages induced from monocytes of human peripheral blood with the addition of lipopolysaccharide (LPS) and interleukin-4 (IL-4), respectively. The model of induction of M1 and M2 macrophages was used in the work to achieve the corresponding shifts in the functional status of studied cells. Ethyl nitrite (EtONO) was used as a standard compound of nitrite ions for electrochemical measurements. Electrochemical determination of nitrite ions was performed by anodic linear sweep voltammetry in the first-order derivative mode (ALSV FOD) in Britton-Robinson (BR) buffer with pH 4.02 on carbon ink modified graphite electrode. EtONO calibrations were linear over a concentration range from 2 to 9 μmol L-1 with corresponding regression equation y = 0.768c - 0.048. Limit of detection (LOD) (S/N = 3) was 0.38 μmol L-1. The results of the study showed the fundamental possibility of using voltammetry to assess indirectly the production of nitric oxide by cells in supernatants of the monocytic macrophage lineage. The level of nitric oxide metabolites (nitrite ions) in supernatants was associated with the functional state of macrophages.
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Li X, Ling Y, Cao Z, Shen J, Chen S, Liu W, Yuan B, Wen S. Targeting intestinal epithelial cell-programmed necrosis alleviates tissue injury after intestinal ischemia/reperfusion in rats. J Surg Res 2018; 225:108-117. [PMID: 29605020 DOI: 10.1016/j.jss.2018.01.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Revised: 11/19/2017] [Accepted: 01/04/2018] [Indexed: 11/21/2022]
Abstract
BACKGROUND Intestinal dysfunction, especially acute pathologies linked to intestinal ischemia/reperfusion (I/R) injury, is profoundly affected by inflammation and improper execution of cell death. Few studies have examined the efficacy of combined strategies in regulated intestinal epithelial necrosis after intestinal I/R. Here, we evaluated the functional interaction between poly (adenosine diphosphate-ribose) polymerase 1 (PARP-1)-induced parthanatos and receptor-interacting protein 1/3 (RIP1/3) kinase-induced necroptosis in the pathophysiological course of acute ischemic intestinal injury. METHODS Anesthetized adult male Sprague-Dawley rats were subjected to superior mesenteric artery occlusion consisting of 1.5 h of ischemia and 6 h of reperfusion. The PARP-1-specific inhibitor PJ34 (10 mg/kg) and the RIP1-specific inhibitor Necrostatin-1 (1 mg/kg) were intraperitoneally administered 30 min before the induction of ischemia. RESULTS Intestinal I/R was found to result in PARP-1 activation and RIP1/3-mediated necrosome formation. PJ34 or Necrostatin-1 treatment significantly improved the mucosal injury, while the combined inhibition of PARP-1 and RIP1/3 conferred optimal protection of the intestine. Meanwhile, results from terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate-biotin nick end labeling assay showed a decrease in intestinal epithelial cell death. Interestingly, we further showed that PARP-1 might act as a downstream signaling molecule of RIP1 in the process of I/R-induced intestinal injury and that the RIP1/PARP-1-dependent cell death signaling pathway functioned independently of caspase 3 inhibition. CONCLUSIONS The results of our study provide a molecular basis for combination therapy that targets both pathways of regulated necrosis (parthanatos and necroptosis), to treat acute intestinal I/R-induced intestinal epithelial barrier disruption.
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Affiliation(s)
- Xiang Li
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yihong Ling
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China; Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Zhongming Cao
- Department of Anesthesiology, Guangdong Cardiovascular Institute and Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Jiantong Shen
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Shaoqian Chen
- Department of Medical Laboratory, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Weifeng Liu
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Baolong Yuan
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
| | - Shihong Wen
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
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Lee M, Rey K, Besler K, Wang C, Choy J. Immunobiology of Nitric Oxide and Regulation of Inducible Nitric Oxide Synthase. Results Probl Cell Differ 2017; 62:181-207. [PMID: 28455710 DOI: 10.1007/978-3-319-54090-0_8] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Nitric oxide (NO) is a bioactive gas that has multiple roles in innate and adaptive immune responses. In macrophages, nitric oxide is produced by inducible nitric oxide synthase upon microbial and cytokine stimulation. It is needed for host defense against pathogens and for immune regulation. This review will summarize the role of NO and iNOS in inflammatory and immune responses and will discuss the regulatory mechanisms that control inducible nitric oxide synthase expression and activity.
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Affiliation(s)
- Martin Lee
- Department of Molecular Biology and Biochemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada
| | - Kevin Rey
- Department of Molecular Biology and Biochemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada
| | - Katrina Besler
- Department of Molecular Biology and Biochemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada
| | - Christine Wang
- Department of Molecular Biology and Biochemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada
| | - Jonathan Choy
- Department of Molecular Biology and Biochemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada.
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Bakthavachalam P, Shanmugam PST. Mitochondrial dysfunction - Silent killer in cerebral ischemia. J Neurol Sci 2017; 375:417-423. [PMID: 28320180 DOI: 10.1016/j.jns.2017.02.043] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 01/27/2017] [Accepted: 02/20/2017] [Indexed: 10/20/2022]
Abstract
Mitochondrial dysfunction aggravates ischemic neuronal injury through activation of various pathophysiological and molecular mechanisms. Ischemic neuronal injury is particularly intensified during reperfusion due to impairment of mitochondrial function. Mitochondrial mutilation instigates alterations in calcium homeostasis in neurons, which plays a pivotal role in the maintenance of normal neuronal function. Increase in intracellular calcium level in mitochondria triggers the opening of mitochondrial transition pore and over production of reactive oxygen species (ROS). Several investigations have concluded that ROS not only contribute to lipids and proteins damage, but also transduce apoptotic signals leading to neuronal death. In addition to the above mentioned reasons, endoplasmic reticulum (ER) stress due to excitotoxicity also leads to neuronal death. Recently, some newer proteins have been claimed to induce "mitophagy" by triggering the receptors on autophagic membranes leading to neurodegeneration. This review summarizes the mechanisms underlying neuronal death involving mitochondrial dysfunction and mitophagy.
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Affiliation(s)
- Pramila Bakthavachalam
- Sri Ramachandra University, No. 1, Ramachandra Nagar, Porur, Chennai, Tamil Nadu, India.
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9
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Lei WY, Chang CY, Wu JH, Lin FH, Hsu Chen C, Chang CF, Lin YR, Wu HP. An Initial Attack of Urinary Stone Disease Is Associated with an Increased Risk of Developing New-Onset Irritable Bowel Syndrome: Nationwide Population-Based Study. PLoS One 2016; 11:e0157701. [PMID: 27337114 PMCID: PMC4919104 DOI: 10.1371/journal.pone.0157701] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 04/19/2016] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The neurotransmitter pathways in irritable bowel syndrome (IBS) and urinary stone attacks are both related to serotonin, and each disease may be influenced by viscero-visceral hyperalgesia. However, the relationship between urinary tract stone disease and IBS has never been addressed. We aimed to investigate the risk of suffering new-onset IBS after an initial urinary stone attack using a nationwide database. METHODS A study group enrolled a total of 13,254 patients who were diagnosed with an initial urinary stone attack; a comparison group recruited 39,762 matched non-urinary stone participants during 2003 and 2007. We followed each patient for 3 years to determine new-onset IBS. We also used Cox proportional hazards models to analyze the risk of IBS between the study and comparison groups after modified by demographics, residence, patient characteristics and personal histories. RESULTS The occurrence rates of IBS were 3.3% (n = 440) and 2.6% (n = 1,034) respectively in the study and comparison groups. A covariate-adjusted hazard ratio (HR) of IBS in the study group that was 1.28 times greater (HR = 1.29, 95% CI, 1.15-1.44) than that in the comparison group was showed in the stratified Cox proportional analysis. The adjusted HRs of IBS did not decrease after considering demographics and past histories. The majority of IBS (30.5%) occurred within the first 6 months after the stone attack. CONCLUSION Patients with an initial urinary stone attack are at increased risk of developing new-onset IBS. The HRs of IBS did not decrease even after adjusting for patient demographics and past histories. Most importantly, 30.5% of IBS occurred within the first 6 months after the urinary stone attack.
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Affiliation(s)
- Wei-Yuan Lei
- Department of Emergency Medicine, Changhua Christian Hospital, Changhua, Taiwan
| | - Chih-Yu Chang
- Department of Emergency Medicine, Changhua Christian Hospital, Changhua, Taiwan
- Department of Biological Science and Technology of Biochemical Engineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Jr-Hau Wu
- Department of Emergency Medicine, Changhua Christian Hospital, Changhua, Taiwan
| | - Fei-Hung Lin
- Department of Emergency Medicine, Changhua Christian Hospital, Changhua, Taiwan
| | - Cheng Hsu Chen
- Department of Emergency Medicine, Changhua Christian Hospital, Changhua, Taiwan
| | - Chin-Fu Chang
- Department of Emergency Medicine, Changhua Christian Hospital, Changhua, Taiwan
| | - Yan-Ren Lin
- Department of Emergency Medicine, Changhua Christian Hospital, Changhua, Taiwan
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Han-Ping Wu
- Division of Pediatric General Medicine, Department of Pediatrics, Chang Gung Memorial Hospital at Linko, Kweishan, Taoyuan, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
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Oxidative Stress in the Developing Rat Brain due to Production of Reactive Oxygen and Nitrogen Species. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:5057610. [PMID: 27190574 PMCID: PMC4846767 DOI: 10.1155/2016/5057610] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 03/16/2016] [Indexed: 11/18/2022]
Abstract
Oxidative stress after birth led us to localize reactive oxygen and nitrogen species (RONS) production in the developing rat brain. Brains were assessed a day prenatally and on postnatal days 1, 2, 4, 8, 14, 30, and 60. Oxidation of dihydroethidium detected superoxide; 6-carboxy-2',7'-dichlorodihydrofluorescein diacetate revealed hydrogen peroxide; immunohistochemical proof of nitrotyrosine and carboxyethyllysine detected peroxynitrite formation and lipid peroxidation, respectively. Blue autofluorescence detected protein oxidation. The foetuses showed moderate RONS production, which changed cyclically during further development. The periods and sites of peak production of individual RONS differed, suggesting independent generation. On day 1, neuronal/glial RONS production decreased indicating that increased oxygen concentration after birth did not cause oxidative stress. Dramatic changes in the amount and the sites of RONS production occurred on day 4. Nitrotyrosine detection reached its maximum. Day 14 represented other vast alterations in RONS generation. Superoxide production in arachnoidal membrane reached its peak. From this day on, the internal elastic laminae of blood vessels revealed the blue autofluorescence. The adult animals produced moderate levels of superoxide; all other markers reached their minimum. There was a strong correlation between detection of nitrotyrosine and carboxyethyllysine probably caused by lipid peroxidation initiated with RONS.
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Kohutiar M, Ivica J, Vytášek R, Skoumalová A, Illner J, Šantorová P, Wilhelm J. Comparison of the effects of tert-butyl hydroperoxide and peroxynitrite on the oxidative damage to isolated beef heart mitochondria. Physiol Res 2016; 65:617-626. [PMID: 26988158 DOI: 10.33549/physiolres.933175] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Isolated beef heart mitochondria have been exposed to tert-butyl hydroperoxide (tBHP) and peroxynitrite (PeN) in order to model the effects of reactive oxygen and nitrogen species on mitochondria in vivo. The formation of malondialdehyde (MDA), protein carbonyls, lipofuscin-like pigments (LFP), and nitrotyrosine was studied during incubations with various concentrations of oxidants for up to 24 h. The oxidants differed in their ability to oxidize particular substrates. Fatty acids were more sensitive to the low concentrations of tBHP, whereas higher concentrations of PeN consumed MDA. Oxidation of proteins producing carbonyls had different kinetics and also a probable mechanism with tBHP or PeN. Diverse proteins were affected by tBHP or PeN. In both cases, prolonged incubation led to the appearance of proteins with molecular weights lower than 29 kDa bearing carbonyl groups that might have been caused by protein fragmentation. PeN induced nitration of protein tyrosines that was more intensive in the soluble proteins than in the insoluble ones. LFP, the end products of lipid peroxidation, were formed more readily by PeN. On the other hand, fluorometric and chromatographic techniques have confirmed destruction of LFP by higher PeN concentrations. This is a unique feature that has not been described so far for any oxidant.
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Affiliation(s)
- M Kohutiar
- Department of Medical Chemistry and Clinical Biochemistry, Second Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Prague, Czech Republic.
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Chao MR, Hsu YW, Liu HH, Lin JH, Hu CW. Simultaneous Detection of 3-Nitrotyrosine and 3-Nitro-4-hydroxyphenylacetic Acid in Human Urine by Online SPE LC-MS/MS and Their Association with Oxidative and Methylated DNA Lesions. Chem Res Toxicol 2015; 28:997-1006. [DOI: 10.1021/acs.chemrestox.5b00031] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
| | - Yu-Wen Hsu
- Department
of Optometry, Da-Yeh University, Changhua 515, Taiwan
| | | | | | - Chiung-Wen Hu
- Department
of Family and Community Medicine, Chung Shan Medical University Hospital, Taichung 402, Taiwan
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13
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Differential pro-inflammatory responses of TNF-α receptors (TNFR1 and TNFR2) on LOX-1 signalling. Mol Biol Rep 2014; 42:1039-47. [DOI: 10.1007/s11033-014-3841-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Accepted: 11/13/2014] [Indexed: 12/15/2022]
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Hirst AM, Frame FM, Maitland NJ, O'Connell D. Low temperature plasma: a novel focal therapy for localized prostate cancer? BIOMED RESEARCH INTERNATIONAL 2014; 2014:878319. [PMID: 24738076 PMCID: PMC3971493 DOI: 10.1155/2014/878319] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Accepted: 02/06/2014] [Indexed: 12/16/2022]
Abstract
Despite considerable advances in recent years for the focal treatment of localized prostate cancer, high recurrence rates and detrimental side effects are still a cause for concern. In this review, we compare current focal therapies to a potentially novel approach for the treatment of early onset prostate cancer: low temperature plasma. The rapidly evolving plasma technology has the potential to deliver a wide range of promising medical applications via the delivery of plasma-induced reactive oxygen and nitrogen species. Studies assessing the effect of low temperature plasma on cell lines and xenografts have demonstrated DNA damage leading to apoptosis and reduction in cell viability. However, there have been no studies on prostate cancer, which is an obvious candidate for this novel therapy. We present here the potential of low temperature plasma as a focal therapy for prostate cancer.
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Affiliation(s)
- Adam M Hirst
- Department of Physics, York Plasma Institute, University of York, Heslington, York YO10 5DD, UK
| | - Fiona M Frame
- YCR Cancer Research Unit, Department of Biology, University of York, Heslington, York YO10 5DD, UK
| | - Norman J Maitland
- YCR Cancer Research Unit, Department of Biology, University of York, Heslington, York YO10 5DD, UK
| | - Deborah O'Connell
- Department of Physics, York Plasma Institute, University of York, Heslington, York YO10 5DD, UK
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Habib S, Ahmad S, Dixit K, Moinuddin, Ali A. Peroxynitrite modified DNA may be an antigenic trigger for antibodies in various cancers of gynecologic origin. Hum Immunol 2013; 74:1239-43. [DOI: 10.1016/j.humimm.2013.07.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Revised: 07/10/2013] [Accepted: 07/19/2013] [Indexed: 11/24/2022]
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Yara S, Lavoie JC, Beaulieu JF, Delvin E, Amre D, Marcil V, Seidman E, Levy E. Iron-ascorbate-mediated lipid peroxidation causes epigenetic changes in the antioxidant defense in intestinal epithelial cells: impact on inflammation. PLoS One 2013; 8:e63456. [PMID: 23717425 PMCID: PMC3661745 DOI: 10.1371/journal.pone.0063456] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2013] [Accepted: 04/03/2013] [Indexed: 12/22/2022] Open
Abstract
Introduction The gastrointestinal tract is frequently exposed to noxious stimuli that may cause oxidative stress, inflammation and injury. Intraluminal pro-oxidants from ingested nutrients especially iron salts and ascorbic acid frequently consumed together, can lead to catalytic formation of oxygen-derived free radicals that ultimately overwhelm the cellular antioxidant defense and lead to cell damage. Hypothesis Since the mechanisms remain sketchy, efforts have been exerted to evaluate the role of epigenetics in modulating components of endogenous enzymatic antioxidants in the intestine. To this end, Caco-2/15 cells were exposed to the iron-ascorbate oxygen radical-generating system. Results Fe/Asc induced a significant increase in lipid peroxidation as reflected by the elevated formation of malondialdehyde along with the alteration of antioxidant defense as evidenced by raised superoxide dismutase 2 (SOD2) and diminished glutathione peroxidase (GPx) activities and genes. Consequently, there was an up-regulation of inflammatory processes illustrated by the activation of NF-κB transcription factor, the higher production of interleukin-6 and cycloxygenase-2 as well as the decrease of IκB. Assessment of promoter’s methylation revealed decreased levels for SOD2 and increased degree for GPx2. On the other hand, pre-incubation of Caco-2/15 cells with 5-Aza-2′-deoxycytidine, a demethylating agent, or Trolox antioxidant normalized the activities of SOD2 and GPx, reduced lipid peroxidation and prevented inflammation. Conclusion Redox and inflammatory modifications in response to Fe/Asc -mediated lipid peroxidation may implicate epigenetic methylation.
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Affiliation(s)
- Sabrina Yara
- Department of Nutrition, Research Centre, CHU-Sainte-Justine, Université de Montréal, Montreal, Quebec, Canada
| | - Jean-Claude Lavoie
- Department of Pediatrics, Research Centre, CHU-Sainte-Justine, Université de Montréal, Montreal, Quebec, Canada
| | - Jean-François Beaulieu
- Canadian Institutes for Health Research Team on the Digestive Epithelium, Department of Anatomy and Cellular Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Edgard Delvin
- Department of Biochemistry, Research Centre, CHU-Sainte-Justine, Université de Montréal, Montreal, Quebec, Canada
| | - Devendra Amre
- Department of Pediatrics, Research Centre, CHU-Sainte-Justine, Université de Montréal, Montreal, Quebec, Canada
| | - Valerie Marcil
- Research Institute, McGill University, Campus MGH, C10.148.6, Montreal, Quebec, Canada
| | - Ernest Seidman
- Canadian Institutes for Health Research Team on the Digestive Epithelium, Department of Anatomy and Cellular Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada
- Research Institute, McGill University, Campus MGH, C10.148.6, Montreal, Quebec, Canada
| | - Emile Levy
- Department of Nutrition, Research Centre, CHU-Sainte-Justine, Université de Montréal, Montreal, Quebec, Canada
- Canadian Institutes for Health Research Team on the Digestive Epithelium, Department of Anatomy and Cellular Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada
- * E-mail:
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Morris G, Anderson G, Galecki P, Berk M, Maes M. A narrative review on the similarities and dissimilarities between myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) and sickness behavior. BMC Med 2013; 11:64. [PMID: 23497361 PMCID: PMC3751187 DOI: 10.1186/1741-7015-11-64] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Accepted: 03/08/2013] [Indexed: 12/14/2022] Open
Abstract
It is of importance whether myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a variant of sickness behavior. The latter is induced by acute infections/injury being principally mediated through proinflammatory cytokines. Sickness is a beneficial behavioral response that serves to enhance recovery, conserves energy and plays a role in the resolution of inflammation. There are behavioral/symptomatic similarities (for example, fatigue, malaise, hyperalgesia) and dissimilarities (gastrointestinal symptoms, anorexia and weight loss) between sickness and ME/CFS. While sickness is an adaptive response induced by proinflammatory cytokines, ME/CFS is a chronic, disabling disorder, where the pathophysiology is related to activation of immunoinflammatory and oxidative pathways and autoimmune responses. While sickness behavior is a state of energy conservation, which plays a role in combating pathogens, ME/CFS is a chronic disease underpinned by a state of energy depletion. While sickness is an acute response to infection/injury, the trigger factors in ME/CFS are less well defined and encompass acute and chronic infections, as well as inflammatory or autoimmune diseases. It is concluded that sickness behavior and ME/CFS are two different conditions.
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Affiliation(s)
- Gerwyn Morris
- Tir Na Nog, Bryn Road Seaside 87, Llanelli, SA152LW, UK
| | - George Anderson
- CRC Clinical Research Centre/Communications, Laurel Street 57, Glasgow, G11 7QT,UK
| | - Piotr Galecki
- Department of Adult Psychiatry, Medical University of Lodz, Aleksandrowska 159, Lodz, 91229, Poland
| | - Michael Berk
- Barwon Health, School of Medicine, Deakin University, PO Box 291, Geelong, 3220, Australia
- Orygen Youth Health Research Centre, Poplar Road 35, Parkville, 3052, Australia
- Centre of Youth Mental Health, University of Melbourne, Poplar Road 35, Parkville, 3052, Australia
- The Florey Institute for Neuroscience and Mental Health, University of Melbourne, Kenneth Myer Building, Royal Parade 30, Parkville, 3052, Australia
- Department of Psychiatry, University of Melbourne, Level 1 North, Main Block, Royal Melbourne Hospital, Parkville, 3052, Australia
| | - Michael Maes
- Barwon Health, School of Medicine, Deakin University, PO Box 291, Geelong, 3220, Australia
- Department of Psychiatry, Chulalongkorn University, Rama 4 Road 1873, Pathumwan, Bangkok, 10330, Thailand
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Rezvanfar MA, Rezvanfar MA, Shahverdi AR, Ahmadi A, Baeeri M, Mohammadirad A, Abdollahi M. Protection of cisplatin-induced spermatotoxicity, DNA damage and chromatin abnormality by selenium nano-particles. Toxicol Appl Pharmacol 2012; 266:356-65. [PMID: 23260366 DOI: 10.1016/j.taap.2012.11.025] [Citation(s) in RCA: 126] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Revised: 11/01/2012] [Accepted: 11/26/2012] [Indexed: 12/28/2022]
Abstract
Cisplatin (CIS), an anticancer alkylating agent, induces DNA adducts and effectively cross links the DNA strands and so affects spermatozoa as a male reproductive toxicant. The present study investigated the cellular/biochemical mechanisms underlying possible protective effect of selenium nano-particles (Nano-Se) as an established strong antioxidant with more bioavailability and less toxicity, on reproductive toxicity of CIS by assessment of sperm characteristics, sperm DNA integrity, chromatin quality and spermatogenic disorders. To determine the role of oxidative stress (OS) in the pathogenesis of CIS gonadotoxicity, the level of lipid peroxidation (LPO), antioxidant enzymes including superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px) and peroxynitrite (ONOO) as a marker of nitrosative stress (NS) and testosterone (T) concentration as a biomarker of testicular function were measured in the blood and testes. Thirty-two male Wistar rats were equally divided into four groups. A single IP dose of CIS (7 mg/kg) and protective dose of Nano-Se (2 mg/kg/day) were administered alone or in combination. The CIS-exposed rats showed a significant increase in testicular and serum LPO and ONOO level, along with a significant decrease in enzymatic antioxidants levels, diminished serum T concentration and abnormal histologic findings with impaired sperm quality associated with increased DNA damage and decreased chromatin quality. Coadministration of Nano-Se significantly improved the serum T, sperm quality, and spermatogenesis and reduced CIS-induced free radical toxic stress and spermatic DNA damage. In conclusion, the current study demonstrated that Nano-Se may be useful to prevent CIS-induced gonadotoxicity through its antioxidant potential.
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Affiliation(s)
- Mohammad Amin Rezvanfar
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
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Liu W, Fan Z, Han Y, Zhang D, Li J, Wang H. Intranuclear localization of apoptosis-inducing factor and endonuclease G involves in peroxynitrite-induced apoptosis of spiral ganglion neurons. Neurol Res 2012; 34:915-22. [PMID: 23006905 DOI: 10.1179/1743132812y.0000000098] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVES The present study was designed to determine whether or not the caspase-independent apoptotic pathway participated in the cellular death of spiral ganglion neurons (SGNs) after exposure to peroxynitrite (ONOO(-)), with particular attention given to the intranuclear translocation of mitochondrial apoptosis-inducing factor (AIF) and endonuclease G (Endo G) in this process. METHODS The rat SGNs were isolated and primary cultured in vitro and were exposed to ONOO(-) with pre-treatment of pan-caspase inhibitor. Morphological changes of SGNs were observed by acridine orange cytochemistry staining, and apoptosis was examined by flow cytometry. The translocation of mitochondrial AIF and Endo G was detected by immunocytochemistry and Western blot. The protein expressions of Bcl-2 family in SGNs exposed to ONOO(-) were determined by Western blot. RESULTS Treatment of SGNs with ONOO(-) resulted in the occurrence of caspase-independent apoptosis as evidenced by acridine orange staining and flow cytometry analysis. The immunocytochemical analysis showed that AIF and Endo G labeling were marked in neuronal nuclei, while the Western blot demonstrated the intranuclear localization of AIF and Endo G in SGNs treated with ONOO(-). Western blot analysis demonstrated that ONOO(-) increased the Bax expression while reducing Bcl-2 expression, which was not prevented by pre-treatment with caspase inhibitor. CONCLUSION These data indicate that ONOO(-) can trigger caspase-independent apoptosis in SGNs associated with mitochondrial AIF and Endo G intranuclear localization.
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Affiliation(s)
- Wenwen Liu
- Department of Otolaryngology-Head and Neck Surgery, Provincial Hospital Affiliated to Shandong University, Jinan, China
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Gene regulation by melatonin linked to epigenetic phenomena. Gene 2012; 503:1-11. [DOI: 10.1016/j.gene.2012.04.040] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2011] [Revised: 03/29/2012] [Accepted: 04/17/2012] [Indexed: 12/13/2022]
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Korkmaz A, Manchester L, Topal T, Ma S, Tan D, Reiter R. Epigenetic mechanisms in human physiology and diseases. ACTA ACUST UNITED AC 2011. [DOI: 10.5455/jeim.060611.rw.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Korkmaz A, Manchester L. Reactive nitrogen species; devastating intracellular players and melatonin as a defender. ACTA ACUST UNITED AC 2011. [DOI: 10.5455/jeim.270311.ed.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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