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Singh E, Gupta A, Singh P, Jain M, Muthukumaran J, Singh R, Singh AK. Exploring Mammalian Heme Peroxidases: A comprehensive review on the structure and function of Myeloperoxidase, Lactoperoxidase, Eosinophil peroxidase, Thyroid peroxidase and Peroxidasin. Arch Biochem Biophys 2024:110155. [PMID: 39278306 DOI: 10.1016/j.abb.2024.110155] [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: 06/22/2024] [Revised: 08/29/2024] [Accepted: 09/12/2024] [Indexed: 09/18/2024]
Abstract
The peroxidase family of enzymes is a ubiquitous cluster of enzymes primarily responsible for the oxidation of organic and inorganic substrates. The mammalian heme peroxidase subfamily is characterized by a covalently linked heme prosthetic group which pays a key role in the oxidation of halides and psuedohalides in their respective hypohalous acid and hypothiocyanous acid under the influence of H2O2 as substrate. The members of the heme peroxidase family include Lactoperoxidase (LPO), Eosinophil peroxidase (EPO), Myeloperoxidase (MPO), Thyroid peroxidase (TPO) and Peroxidasin (PXDN). The biological activity of LPO, MPO and EPO pertains to antibacterial, antifungal and antiviral while TPO is involved in the biosynthesis of the thyroid hormone and PXDN helps maintain the ECM. While these enzymes play several immunomodulatory roles, aberrations in their activity have been implicated in diseases such as myocardial infarction, asthma and Alzheimer's amongst others. The sequence and structural similarities amongst the members of the family are strikingly high while the substrate specificities and subcellular locations vary. Hence, it becomes important to provide a consortium of information regarding the members to study their function, pathological and clinical function.
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Affiliation(s)
- Ekampreet Singh
- Department of Biotechnology, Sharda School of Engineering and Technology, Sharda University, P.C. 201310, Greater Noida, U.P., India
| | - Ayushi Gupta
- Department of Biotechnology, Sharda School of Engineering and Technology, Sharda University, P.C. 201310, Greater Noida, U.P., India
| | - Pratyaksha Singh
- School of Biotechnology, Gautam Buddha University, P.C. 201312, Greater Noida, U.P., India
| | - Monika Jain
- Department of Biotechnology, Sharda School of Engineering and Technology, Sharda University, P.C. 201310, Greater Noida, U.P., India
| | - Jayaraman Muthukumaran
- Department of Biotechnology, Sharda School of Engineering and Technology, Sharda University, P.C. 201310, Greater Noida, U.P., India
| | - RashmiPrabha Singh
- Department of Life Science, Sharda School of Basic Sciences and Research, Sharda University, P.C. 201310, Greater Noida, U.P., India.
| | - Amit Kumar Singh
- Department of Biotechnology, Sharda School of Engineering and Technology, Sharda University, P.C. 201310, Greater Noida, U.P., India.
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Alrashdan MS, Al-Shorman H, Al-Dwairi A, Qutieshat A, Al-Omiri MK. Salivary oxidative stress biomarkers in periodontitis-free smokers: a cross sectional study. Minerva Dent Oral Sci 2024; 73:209-216. [PMID: 38953793 DOI: 10.23736/s2724-6329.24.04879-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
BACKGROUND Salivary oxidative stress has been extensively studied with attempts to correlate changes in the oxidative stress markers with local and systemic factors, including smoking. The objective of this study was to evaluate the influence of two forms of smoking, cigarettes and waterpipe smoking (WPS), on selected oxidative stress biomarkers in saliva. METHODS Three groups of participants were enrolled into the study, controls (never smokers), cigarette smokers and WPS. Participants were clinically free from periodontitis and systemic conditions known to affect the saliva constituents. Unstimulated whole saliva samples were collected according to a standard protocol and concentrations of 8-hydroxy-2'-deoxyguanosine (8-OHdG), myeloperoxidase (MPO), malondialdehyde (MDA), total antioxidant capacity (TAC), and cortisol. The one-way ANOVA test was used to compare the levels of each oxidative stress biomarker between the three study groups and the hierarchical linear regression analysis was used to test the levels of salivary cortisol for prediction of other oxidative stress biomarkers. Significance levels were set at 95% confidence intervals and probability values ≤0.05. RESULTS 8-OHdG was highest in WPS group (mean±SE 11,030.35±1829.16 pg/mL) while MDA and cortisol levels were highest in the cigarette smokers group (mean±SE 3.33±0.52 µM and 3.99±0.48 ng/mL, respectively) and MPO was highest in the control group (mean±SE 7.760±1.55 ng/mL). WPS group showed the highest TAC (mean±SE 0.3±0.03 mM). However, none of the tested makers reached a statistically significant difference. CONCLUSIONS Despite subtle changes in some biomarkers, the salivary oxidative stress does not appear to be significantly influenced by smoking habits in periodontitis-free smokers.
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Affiliation(s)
- Mohammad S Alrashdan
- Department of Oral and Craniofacial Health Sciences, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates -
- Department of Oral Medicine and Oral Surgery, Faculty of Dentistry, Jordan University of Science and Technology, Irbid, Jordan -
| | - Hisham Al-Shorman
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Zarqa University, Zarqa, Jordan
| | - Ahmed Al-Dwairi
- Department of Physiology and Biochemistry, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - Abubaker Qutieshat
- Adult Restorative Dentistry, Oman Dental College, Muscat, Oman
- Honorary Researcher, Dundee Dental Hospital & School, Dundee, UK
| | - Mahmoud K Al-Omiri
- Department of Prosthodontics, School of Dentistry, University of Jordan, Queen Rania Street, Amman, Jordan
- Department of Prosthodontics, The City of London School of Dentistry, London, UK
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Terrill JR, Bautista APR, Tsioutsias I, Grounds MD, Arthur PG. Oxidised Albumin Levels in Plasma and Skeletal Muscle as Biomarkers of Disease Progression and Treatment Efficacy in Dystrophic mdx Mice. Antioxidants (Basel) 2024; 13:720. [PMID: 38929159 PMCID: PMC11201235 DOI: 10.3390/antiox13060720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 06/05/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
Redox modifications to the plasma protein albumin have the potential to be used as biomarkers of disease progression and treatment efficacy in pathologies associated with inflammation and oxidative stress. One such pathology is Duchenne muscular dystrophy (DMD), a fatal childhood disease characterised by severe muscle wasting. We have previously shown in the mdx mouse model of DMD that plasma albumin thiol oxidation is increased; therefore, the first aim of this paper was to establish that albumin thiol oxidation in plasma reflects levels within mdx muscle tissue. We therefore developed a method to measure tissue albumin thiol oxidation. We show that albumin thiol oxidation was increased in both mdx muscle and plasma, with levels correlated with measures of dystropathology. In dystrophic muscle, albumin content was associated with areas of myonecrosis. The second aim was to test the ability of plasma thiol oxidation to track acute changes in dystropathology: we therefore subjected mdx mice to a single treadmill exercise session (known to increase myonecrosis) and took serial blood samples. This acute exercise caused a transient increase in total plasma albumin oxidation and measures of dystropathology. Together, these data support the use of plasma albumin thiol oxidation as a biomarker to track active myonecrosis in DMD.
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Affiliation(s)
- Jessica R. Terrill
- School of Molecular Sciences, The University of Western Australia, Perth, WA 6009, Australia; (J.R.T.); (A.P.R.B.); (I.T.)
| | - Angelo Patrick R. Bautista
- School of Molecular Sciences, The University of Western Australia, Perth, WA 6009, Australia; (J.R.T.); (A.P.R.B.); (I.T.)
| | - Irene Tsioutsias
- School of Molecular Sciences, The University of Western Australia, Perth, WA 6009, Australia; (J.R.T.); (A.P.R.B.); (I.T.)
- School of Human Sciences, The University of Western Australia, Perth, WA 6009, Australia;
| | - Miranda D. Grounds
- School of Human Sciences, The University of Western Australia, Perth, WA 6009, Australia;
| | - Peter G. Arthur
- School of Molecular Sciences, The University of Western Australia, Perth, WA 6009, Australia; (J.R.T.); (A.P.R.B.); (I.T.)
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Estornut C, Rinaldi G, Carceller MC, Estornut S, Pérez-Leal M. Systemic and local effect of oxidative stress on recurrent aphthous stomatitis: systematic review. J Mol Med (Berl) 2024; 102:453-463. [PMID: 38376817 DOI: 10.1007/s00109-024-02434-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 01/30/2024] [Accepted: 02/13/2024] [Indexed: 02/21/2024]
Abstract
Recurrent aphthous stomatitis (RAS) is a chronic and recurrent inflammatory disease of the mouth. It is characterised by the appearance of painful ulcers in the oral mucosa. RAS is believed to be a multifactorial disease with genetic predisposition, environmental factors and alterations in the immune system. Oxidative stress, caused by an imbalance between free radicals and the antioxidant system, also appears to be involved in the pathogenesis of RAS. Several risk factors, such as smoking, iron and vitamin deficiency and anxiety, may contribute to the development of the disease. Understanding the underlying mechanisms may help in the prevention and treatment of RAS. We searched PubMed, Scopus and Web of Science databases for articles on oxidative stress in patients with RAS from 2000 to 2023. Studies analysing oxidant and antioxidant levels in the blood and saliva of RAS patients and healthy controls were selected. Of 170 potentially eligible articles, 24 met the inclusion criteria: 11 studies on blood samples, 6 on salivary samples and 7 on both blood and salivary samples. Multiple oxidative and antioxidant markers were assessed in blood and saliva samples. Overall, statistically significant differences were found between RAS patients and healthy controls for most markers. In addition, increased oxidative DNA damage was observed in patients with RAS. Patients with RAS show elevated levels of oxidative stress compared to healthy controls, with a significant increase in oxidative markers and a significant decrease in antioxidant defences in saliva and blood samples.
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Affiliation(s)
- Cristina Estornut
- Faculty of Health Sciences, Department of Dentistry, Universidad Europea de Valencia, Valencia, Spain.
| | - Giulia Rinaldi
- Faculty of Health Sciences, Department of Dentistry, Universidad Europea de Valencia, Valencia, Spain
| | - María Carmen Carceller
- Faculty of Health Sciences, Department of Dentistry, Universidad Europea de Valencia, Valencia, Spain
- Department of Pharmacy, Pharmaceutical Technology and Parasitology, Faculty of Pharmacy and Food Sciences, University of Valencia, Av. Vicent Andrés Estellés s/n, Burjassot, Valencia, 46100, Spain
- Interuniversity Research Institute for Molecular Recognition and Technological Development (IDM), University of Valencia, Polytechnic University of Valencia, Av. Vicent A. Estellés s/n, Burjassot, Valencia, 46100, Spain
| | | | - Martín Pérez-Leal
- Faculty of Health Sciences, Department of Dentistry, Universidad Europea de Valencia, Valencia, Spain
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Shi R, Wu Y, Chen H, Zhang Z, Bao S, Qu J, Zhou M. The causal effect of oxidative stress on the risk of glaucoma. Heliyon 2024; 10:e24852. [PMID: 38317903 PMCID: PMC10838757 DOI: 10.1016/j.heliyon.2024.e24852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 12/09/2023] [Accepted: 01/16/2024] [Indexed: 02/07/2024] Open
Abstract
Glaucoma is a complex multifactorial disease. Oxidative stress has been implicated in its pathogenesis. However, establishing a causal relationship between oxidative stress and glaucoma is challenging due to confounding and reverse causality. In this study, we performed bidirectional two-sample Mendelian randomization (MR) analyses based on genetic instrumental variables as proxies for 11 biomarkers of oxidative stress injury to investigate the causal relationship between oxidative stress and glaucoma. Eight significant associations were identified. Increased circulating levels of catalase (OR = 0.915, 95 % CI: 0.848-0.987, P = 0.022), retinol (OR = 0.481, 95 % CI: 0.248-0.932, P = 0.044) and superoxide dismutase (OR = 0.779, 95 % CI: 0. 616-0.986, P = 0.038) are associated with a decreased risk of glaucoma, whereas an increased myeloperoxidase level (OR = 2.145, 95 % CI: 1.119-4.111, P = 0.029) is associated with an increased risk of glaucoma. Glaucoma was causally associated with lower levels of total bilirubin (OR = 0.961, 95 % CI: 0.927-0.997, P = 0.039), glutathione peroxidase (OR = 0. 934, 95 % CI: 0.890-0.981, P = 0.006), paraoxonase (OR = 0.883, 95 % CI: 0.810-0.963, P = 0.005) and albumin (OR = 0.988, 95 % CI: 0.978-0.998, P = 0.014). The bidirectional MR analysis revealed a causal relationship between oxidative stress and glaucoma. These findings provide a greater understanding of the underlying mechanisms of glaucomatous neurodegeneration and imply a potential therapeutic approach for glaucoma through targeting oxidative stress pathways.
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Affiliation(s)
- Ronghua Shi
- School of Biomedical Engineering, School of Information and Communication Engineering, Hainan University, Haikou 570228, China
- Hainan Institute of Real World Data, Qionghai, 571437, China
| | - Yaxuan Wu
- School of Biomedical Engineering, School of Information and Communication Engineering, Hainan University, Haikou 570228, China
- Hainan Institute of Real World Data, Qionghai, 571437, China
| | - He Chen
- School of Biomedical Engineering, School of Information and Communication Engineering, Hainan University, Haikou 570228, China
- Hainan Institute of Real World Data, Qionghai, 571437, China
| | - Zicheng Zhang
- School of Biomedical Engineering, School of Information and Communication Engineering, Hainan University, Haikou 570228, China
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
- Hainan Institute of Real World Data, Qionghai, 571437, China
| | - Siqi Bao
- School of Biomedical Engineering, School of Information and Communication Engineering, Hainan University, Haikou 570228, China
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
- Hainan Institute of Real World Data, Qionghai, 571437, China
| | - Jia Qu
- School of Biomedical Engineering, School of Information and Communication Engineering, Hainan University, Haikou 570228, China
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
- Hainan Institute of Real World Data, Qionghai, 571437, China
| | - Meng Zhou
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
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Dündar A. Investigation of serum ischemic-modified albumin, galectin-3, paraoxonase-1, and myeloperoxidase activity levels in patients with acute brucellosis. Redox Rep 2023; 28:2289727. [PMID: 38054459 PMCID: PMC11001275 DOI: 10.1080/13510002.2023.2289727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023] Open
Abstract
OBJECTIVES Infection remains current as an important discussion topic in the etiological factors of atherosclerosis. Ischemic-modified albumin (IMA), galectin-3 (gal-3), paraoxonase-1 (PON-1), and myeloperoxidase (MPO) are biomolecules that play an important role in the pathogenesis of atherosclerosis. Our aim is to investigate serum IMA, gal-3, PON-1, and MPO activity in acute brucellosis infection. MATERIALS AND METHODS Forty patients with acute brucellosis and 40 healthy individuals were included in the study. Serum IMA, gal-3, PON-1, and MPO activity were analyzed by the ELISA method. RESULTS In acute brucellosis infection, serum gal-3, IMA, and MPO activities were found to be significantly increased compared to the control group, and PON-1 activity was found to be significantly decreased compared to the control group (p < 0.001). There was a positive correlation between serum IMA, and MPO activity (r = 0.707 p = 0.000) and a negative correlation (r = -0.943, p = 0.000) between PON-1 activity. There was a positive correlation between serum gal-3 and MPO activity (r = 0.683, p = 0.000) and IMA level (r = 0.927, p = 0.000) and a negative correlation between PON-1 activity (r = -0.951, p = 0.000).Conclusion, it was found that serum gal-3, IMA levels and MPO activity increased, while PON-1 activity decreased. These results showed that the oxidant-anti-oxidant balance is impaired in acute brucellosis infection. In addition, these results indicate that brucella infection may be increase the risk of atherosclerosis. Further studies are needed to support our findings.
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Affiliation(s)
- Ahmet Dündar
- Vocational School of Health Services, Department of Medical Services and Techniques, Medical Laboratory Program, Mardin Artuklu University, Mardin, Turkey
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Rezaeeyan H, Arabfard M, Rasouli HR, Shahriary A, Gh BFNM. Evaluation of common protein biomarkers involved in the pathogenesis of respiratory diseases with proteomic methods: A systematic review. Immun Inflamm Dis 2023; 11:e1090. [PMID: 38018577 PMCID: PMC10659759 DOI: 10.1002/iid3.1090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 09/22/2023] [Accepted: 11/04/2023] [Indexed: 11/30/2023] Open
Abstract
AIM Respiratory disease (RD) is one of the most common diseases characterized by lung dysfunction. Many diagnostic mechanisms have been used to identify the pathogenic agents of responsible for RD. Among these, proteomics emerges as a valuable diagnostic method for pinpointing the specific proteins involved in RD pathogenesis. Therefore, in this study, for the first time, we examined the protein markers involved in the pathogenesis of chronic obstructive pulmonary disease (COPD), idiopathic pulmonary fibrosis (IPF), asthma, bronchiolitis obliterans (BO), and chemical warfare victims exposed to mustard gas, using the proteomics method as a systematic study. MATERIALS AND METHODS A systematic search was performed up to September 2023 on several databases, including PubMed, Scopus, ISI Web of Science, and Cochrane. In total, selected 4246 articles were for evaluation according to the criteria. Finally, 119 studies were selected for this systematic review. RESULTS A total of 13,806 proteins were identified, 6471 in COPD, 1603 in Asthma, 5638 in IPF, three in BO, and 91 in mustard gas exposed victims. Alterations in the expression of these proteins were observed in the respective diseases. After evaluation, the results showed that 31 proteins were found to be shared among all five diseases. CONCLUSION Although these 31 proteins regulate different factors and molecular pathways in all five diseases, they ultimately lead to the regulation of inflammatory pathways. In other words, the expression of some proteins in COPD and mustard-exposed patients increases inflammatory reactions, while in IPF, they cause lung fibrosis. Asthma, causes allergic reactions due to T-cell differentiation toward Th2.
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Affiliation(s)
- Hadi Rezaeeyan
- Chemical Injuries Research Center, Systems Biology and Poisonings InstituteBaqiyatallah University of Medical SciencesTehranIran
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion MedicineIranian Blood Transfusion Organization (IBTO)TehranIran
| | - Masoud Arabfard
- Chemical Injuries Research Center, Systems Biology and Poisonings InstituteBaqiyatallah University of Medical SciencesTehranIran
| | - Hamid R. Rasouli
- Trauma Research CenterBaqiyatallah University of Medical SciencesTehranIran
| | - Alireza Shahriary
- Chemical Injuries Research Center, Systems Biology and Poisonings InstituteBaqiyatallah University of Medical SciencesTehranIran
| | - B. Fatemeh Nobakht M. Gh
- Chemical Injuries Research Center, Systems Biology and Poisonings InstituteBaqiyatallah University of Medical SciencesTehranIran
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Conn BN, Wozniak KL. Innate Pulmonary Phagocytes and Their Interactions with Pathogenic Cryptococcus Species. J Fungi (Basel) 2023; 9:617. [PMID: 37367553 PMCID: PMC10299524 DOI: 10.3390/jof9060617] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 05/23/2023] [Accepted: 05/25/2023] [Indexed: 06/28/2023] Open
Abstract
Cryptococcus neoformans is an opportunistic fungal pathogen that causes over 180,000 annual deaths in HIV/AIDS patients. Innate phagocytes in the lungs, such as dendritic cells (DCs) and macrophages, are the first cells to interact with the pathogen. Neutrophils, another innate phagocyte, are recruited to the lungs during cryptococcal infection. These innate cells are involved in early detection of C. neoformans, as well as the removal and clearance of cryptococcal infections. However, C. neoformans has developed ways to interfere with these processes, allowing for the evasion of the host's innate immune system. Additionally, the innate immune cells have the ability to aid in cryptococcal pathogenesis. This review discusses recent literature on the interactions of innate pulmonary phagocytes with C. neoformans.
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Affiliation(s)
| | - Karen L. Wozniak
- Department of Microbiology and Molecular Genetics, Oklahoma State University, 307 Life Science East, Stillwater, OK 74078, USA;
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Terrill JR, Huchet C, Le Guiner C, Lafoux A, Caudal D, Tulangekar A, Bryson-Richardson RJ, Sztal TE, Grounds MD, Arthur PG. Muscle Pathology in Dystrophic Rats and Zebrafish Is Unresponsive to Taurine Treatment, Compared to the mdx Mouse Model for Duchenne Muscular Dystrophy. Metabolites 2023; 13:metabo13020232. [PMID: 36837851 PMCID: PMC9963000 DOI: 10.3390/metabo13020232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 02/09/2023] Open
Abstract
Inflammation and oxidative stress are strongly implicated in the pathology of Duchenne muscular dystrophy (DMD), and the sulphur-containing amino acid taurine ameliorates both and decreases dystropathology in the mdx mouse model for DMD. We therefore further tested taurine as a therapy using dystrophic DMDmdx rats and dmd zebrafish models for DMD that have a more severe dystropathology. However, taurine treatment had little effect on the indices of dystropathology in both these models. While we and others have previously observed a deficiency in taurine in mdx mice, in the current study we show that the rat and zebrafish models had increased taurine content compared with wild-type, and taurine treatment did not increase muscle taurine levels. We therefore hypothesised that endogenous levels of taurine are a key determinate in potential taurine treatment efficacy. Because of this, we felt it important to measure taurine levels in DMD patient plasma samples and showed that in non-ambulant patients (but not in younger patients) there was a deficiency of taurine. These data suggest that taurine homeostasis varies greatly between species and may be influenced by age and disease progression. The potential for taurine to be an effective therapy may depend on such variables.
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Affiliation(s)
- Jessica R. Terrill
- School of Molecular Sciences, The University of Western Australia, Perth 6009, Australia
- Correspondence:
| | - Corinne Huchet
- TaRGeT Lab, Translational Research for Gene Therapy, INSERM, UMR 1089, Nantes Université, CHU Nantes, 440200 Nantes, France
| | - Caroline Le Guiner
- TaRGeT Lab, Translational Research for Gene Therapy, INSERM, UMR 1089, Nantes Université, CHU Nantes, 440200 Nantes, France
| | - Aude Lafoux
- Therassay Platform, CAPACITES, Nantes Université, 44007 Nantes, France
| | - Dorian Caudal
- Therassay Platform, CAPACITES, Nantes Université, 44007 Nantes, France
| | - Ankita Tulangekar
- School of Biological Sciences, Monash University, Melbourne 3800, Australia
| | | | - Tamar E. Sztal
- School of Biological Sciences, Monash University, Melbourne 3800, Australia
| | - Miranda D. Grounds
- School of Human Sciences, the University of Western Australia, Perth 6009, Australia
| | - Peter G. Arthur
- School of Molecular Sciences, The University of Western Australia, Perth 6009, Australia
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Ramos DR, Furtmüller PG, Obinger C, Peña-Gallego Á, Pérez-Juste I, Santaballa JA. Common Reactivity and Properties of Heme Peroxidases: A DFT Study of Their Origin. Antioxidants (Basel) 2023; 12:antiox12020303. [PMID: 36829861 PMCID: PMC9952403 DOI: 10.3390/antiox12020303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/06/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023] Open
Abstract
Electronic structure calculations using the density-functional theory (DFT) have been performed to analyse the effect of water molecules and protonation on the heme group of peroxidases in different redox (ferric, ferrous, compounds I and II) and spin states. Shared geometries, spectroscopic properties at the Soret region, and the thermodynamics of peroxidases are discussed. B3LYP and M06-2X density functionals with different basis sets were employed on a common molecular model of the active site (Fe-centred porphine and proximal imidazole). Computed Gibbs free energies indicate that the corresponding aquo complexes are not thermodynamically stable, supporting the five-coordinate Fe(III) centre in native ferric peroxidases, with a water molecule located at a non-bonding distance. Protonation of the ferryl oxygen of compound II is discussed in terms of thermodynamics, Fe-O bond distances, and redox properties. It is demonstrated that this protonation is necessary to account for the experimental data, and computed Gibbs free energies reveal pKa values of compound II about 8.5-9.0. Computation indicates that the general oxidative properties of peroxidase intermediates, as well as their reactivity towards water and protons and Soret bands, are mainly controlled by the iron porphyrin and its proximal histidine ligand.
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Affiliation(s)
- Daniel R. Ramos
- Chemical Reactivity & Photoreactivity Group (React!), Department of Chemistry, CICA & Faculty of Sciences, Universidade da Coruña, Campus da Zapateira, E-15071 A Coruña, Spain
- Departamento de Química Física, Universidade de Vigo, Campus Universitario Lagoas-Marcosende, E-36310 Vigo, Spain
- Correspondence: (D.R.R.); (J.A.S.)
| | - Paul G. Furtmüller
- Institute of Biochemistry, Department of Chemistry, University of Natural Resources and Life Sciences, Muthgasse 18, A-1190 Vienna, Austria
| | - Christian Obinger
- Institute of Biochemistry, Department of Chemistry, University of Natural Resources and Life Sciences, Muthgasse 18, A-1190 Vienna, Austria
| | - Ángeles Peña-Gallego
- Departamento de Química Física, Universidade de Vigo, Campus Universitario Lagoas-Marcosende, E-36310 Vigo, Spain
| | - Ignacio Pérez-Juste
- Departamento de Química Física, Universidade de Vigo, Campus Universitario Lagoas-Marcosende, E-36310 Vigo, Spain
| | - J. Arturo Santaballa
- Chemical Reactivity & Photoreactivity Group (React!), Department of Chemistry, CICA & Faculty of Sciences, Universidade da Coruña, Campus da Zapateira, E-15071 A Coruña, Spain
- Correspondence: (D.R.R.); (J.A.S.)
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Mosavi Z, Bashi Zadeh Fakhar H, Rezaei-Tavirani M, Akbari ME, Rostami F. Proteome profiling of ductal carcinoma in situ. Breast Dis 2023; 41:513-520. [PMID: 36641653 DOI: 10.3233/bd-220017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
BACKGROUND AND AIM DCIS is the most common type of non-invasive breast cancer, accounting for about 15 to 30%. Proteome profile is used to detect biomarkers in the tissues of breast cancer patients by mass spectrometry. This study aimed to obtain the expression profile of DCIS proteome, and the expression profile of invasive biomarkers, and finally to introduce a dedicated biomarker panel to facilitate the prognosis and early detection for in situ breast cancer patients. METHODS AND MATERIALS In this study, 10 patients with breast cancer (DCIS) were studied. Benign (marginal) and cancerous tissue samples were obtained from patients for proteomics experiments. Initially, all tissue proteins were extracted using standard methods, and the proteins were separated using two-dimensional electrophoresis. Then, the expression amount of the extracted proteins was determined by ITRAQ. The data were analysed by R software, and gene ontology was utilised for describing the protein in detail. RESULTS 30 spots on gel electrophoresis were found in the tumor tissue group (sample), and 15 spots in the margin group (control) with P < 0.05. Healthy and cancerous tissue gels showed that 5 spots had different expression. VWF, MMP9, ITGAM, MPO and PLG protein spots were identified using the site www.ebi.ac.uk/IPI. Finally, protein biomarkers for breast tumor tissue with margin were introduced with the names of P04406, P49915, P05323, P06733, and P02768. DISCUSSION There are 5 critical proteins in inducing cancer pathways especially complement and coagulation cascades. The hall markers of a healthy cell to be cancerous are proliferation, invasion, angiogenesis, and changes in the immune system. Hence, regulation of protein plays a key role in developing recurrence to breast cancer in margins.
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Affiliation(s)
- Zeinb Mosavi
- Department of Medical Science, Islamic Azad University, Chalus Branch, Chalous, Iran
| | - Haniyeh Bashi Zadeh Fakhar
- Cancer Research Centre (CRC), Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Laboratory Science, Islamic Azad University, Chalous Branch, Chalous, Iran
| | | | - Mohamd Esmaeel Akbari
- Cancer Research Centre (CRC), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Forouzan Rostami
- Department of Nursing, Faculty of Nursing and Midwifery, Islamic Azad University, Chalous, Iran
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12
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Serological and Uterine Biomarkers for Detecting Endometritis in Mares. Animals (Basel) 2023; 13:ani13020253. [PMID: 36670793 PMCID: PMC9854937 DOI: 10.3390/ani13020253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/07/2023] [Accepted: 01/09/2023] [Indexed: 01/12/2023] Open
Abstract
Serological analysis may provide relevant information on endometritis diagnostics. Therefore, mares scheduled for AI with refrigerated semen, at the time of heat signs, underwent blood and uterine fluid samplings using a swab, uterine lavage for culture analysis, and treatment with human chorionic gonadotropin to induce ovulation. After 24-28 h, the mares were inseminated and, if positive at the culture test, treated with antibiotics chosen based on the susceptibility test. Uterine cells obtained by swabs were used for cytological examination with both classical and fluorescence techniques. Blood serum and uterine fluid samples were analyzed for assessing parameters related to redox balance, inflammation, and protease regulator potential. In blood serum, total antioxidant capacity, measured as the ferric reducing ability of plasma (FRAP), was significantly lower in cytologically endometritis-positive than -negative mares. In the uterine fluid, total thiol levels (TTL), nitric oxide metabolites (NOx), protease activity and total protein content varied significantly between groups. Although the cytological examination was more capable of discriminating between endometritis-positive and -negative mares in relation to the parameters examined, no statistically significant differences emerged in terms of pregnancy rate in relation to cytological and culture diagnosis as well as in mares diagnosed as positive and negative for endometritis.
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13
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Shi J, Li W, Tao R, Zhou D, Guo Y, Fu H, Sun A, Zhang J, Mao J. Association of Catalase Gene Polymorphisms with Idiopathic Nephrotic Syndrome in a Chinese Pediatric Population. Lab Med 2023; 54:35-40. [PMID: 35964233 DOI: 10.1093/labmed/lmac062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
OBJECTIVE Our aim was to investigate the association between gene polymorphisms in catalase (CAT), a well-known oxidative stress regulator, and susceptibility to idiopathic nephrotic syndrome (INS) or responses to steroid therapy in a Chinese pediatric population. METHODS We analyzed 3 CAT single-nucleotide polymorphisms (SNVs; rs7943316, rs769217, and rs12270780) using multi-polymerase chain reaction combined with next-generation sequencing in 183 INS patients and 100 healthy controls. RESULTS For the allele and genotype frequencies of the CAT SNVs, no significant differences were observed between INS patients and controls. Patients with C allele of CAT rs769217 had a higher risk of developing steroid-dependent nephrotic syndrome than the steroid-sensitive nephrotic syndrome patients (P = 0.018; odds ratio = 1.76). CONCLUSION Our data suggests that genetic variations in CAT were unlikely to confer susceptibility to INS in Chinese children, whereas the C allele of the CAT rs769217 polymorphism showed a strong association with steroid-dependent responses in Chinese INS children.
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Affiliation(s)
- Jianrong Shi
- Department of Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, China
| | - Wei Li
- Department of Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, China
| | - Ran Tao
- Department of Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, China
| | - Dongming Zhou
- Department of Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, China
| | - Yajun Guo
- Department of Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, China
| | - Haidong Fu
- Department of Nephrology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, China
| | - Anna Sun
- Department of Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, China
| | - Junfeng Zhang
- Department of Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, China
| | - Jianhua Mao
- Department of Nephrology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, China
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14
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Ding Y, Fan B, Zhu C, Chen Z. Shared and Related Molecular Targets and Actions of Salicylic Acid in Plants and Humans. Cells 2023; 12:219. [PMID: 36672154 PMCID: PMC9856608 DOI: 10.3390/cells12020219] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/29/2022] [Accepted: 01/01/2023] [Indexed: 01/06/2023] Open
Abstract
Salicylic acid (SA) is a phenolic compound produced by all plants that has an important role in diverse processes of plant growth and stress responses. SA is also the principal metabolite of aspirin and is responsible for many of the anti-inflammatory, cardioprotective and antitumor activities of aspirin. As a result, the number of identified SA targets in both plants and humans is large and continues to increase. These SA targets include catalases/peroxidases, metabolic enzymes, protein kinases and phosphatases, nucleosomal and ribosomal proteins and regulatory and signaling proteins, which mediate the diverse actions of SA in plants and humans. While some of these SA targets and actions are unique to plants or humans, many others are conserved or share striking similarities in the two types of organisms, which underlie a host of common biological processes that are regulated or impacted by SA. In this review, we compare shared and related SA targets and activities to highlight the common nature of actions by SA as a hormone in plants versus a therapeutic agent in humans. The cross examination of SA targets and activities can help identify new actions of SA and better explain their underlying mechanisms in plants and humans.
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Affiliation(s)
- Yuanyuan Ding
- College of Life Sciences, China Jiliang University, Hangzhou 310018, China
| | - Baofang Fan
- Department of Botany and Plant Pathology and Purdue Center for Plant Biology, Purdue University, West Lafayette, IN 47907-2054, USA
| | - Cheng Zhu
- College of Life Sciences, China Jiliang University, Hangzhou 310018, China
| | - Zhixiang Chen
- College of Life Sciences, China Jiliang University, Hangzhou 310018, China
- Department of Botany and Plant Pathology and Purdue Center for Plant Biology, Purdue University, West Lafayette, IN 47907-2054, USA
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15
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Assessment of myeloperoxidase (Mpo) gene polymorphism in cervical cancer. JOURNAL OF SURGERY AND MEDICINE 2022. [DOI: 10.28982/josam.916187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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16
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Yun B, King M, Draz MS, Kline T, Rodriguez-Palacios A. Oxidative reactivity across kingdoms in the gut: Host immunity, stressed microbiota and oxidized foods. Free Radic Biol Med 2022; 178:97-110. [PMID: 34843918 DOI: 10.1016/j.freeradbiomed.2021.11.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 11/05/2021] [Accepted: 11/08/2021] [Indexed: 02/07/2023]
Abstract
Reactive oxygen species play a major role in the induction of programmed cell death and numerous diseases. Production of reactive oxygen species is ubiquitous in biological systems such as humans, bacteria, fungi/yeasts, and plants. Although reactive oxygen species are known to cause diseases, little is known about the importance of the combined oxidative stress burden in the gut. Understanding the dynamics and the level of oxidative stress 'reactivity' across kingdoms could help ascertain the combined consequences of free radical accumulation in the gut lumen. Here, we present fundamental similarities of oxidative stress derived from the host immune cells, bacteria, yeasts, plants, and the therein-derived diets, which often accentuate the burden of free radicals by accumulation during storage and cooking conditions. Given the described similarities, oxidative stress could be better understood and minimized by monitoring the levels of oxidative stress in the feces to identify pro-inflammatory factors. However, we illustrate that dietary studies rarely monitor oxidative stress markers in the feces, and therefore our knowledge on fecal oxidative stress monitoring is limited. A more holistic approach to understanding oxidative stress 'reactivity' in the gut could help improve strategies to use diet and microbiota to prevent intestinal diseases.
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Affiliation(s)
- Bahda Yun
- Division of Gastroenterology & Liver Disease, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Maria King
- Division of Gastroenterology & Liver Disease, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Mohamed S Draz
- Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Terence Kline
- Veterinary Technology Program, Cuyahoga Community College, Cleveland, OH, USA
| | - Alex Rodriguez-Palacios
- Division of Gastroenterology & Liver Disease, Case Western Reserve University School of Medicine, Cleveland, OH, USA; Germ-free and Gut Microbiome Core, Digestive Health Research Institute, Case Western Reserve University, Cleveland, OH, USA; University Hospitals Research and Education Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA.
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17
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Ramos DR, Fernández MI, Furtmüller PG, Obinger C, García MV, Santaballa JA, Canle M. Effect of ionizing radiation on human myeloperoxidase: Reaction with hydrated electrons. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 226:112369. [PMID: 34864529 DOI: 10.1016/j.jphotobiol.2021.112369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/31/2021] [Accepted: 11/24/2021] [Indexed: 06/13/2023]
Abstract
Myeloperoxidase (MPO) is a myeloid-lineage restricted enzyme largely expressed in the azurophilic granules of neutrophils. It catalyses the formation of reactive oxygen species, mainly hypochlorous acid, contributing to anti-pathogenic defense. Disorders in the production or regulation of MPO may lead to a variety of health conditions, mainly of inflammatory origin, including autoimmune inflammation. We have studied the effect of ionizing radiation on the activity of MPO, as measured by the capacity retained by the enzyme to produce hypochlorous acid as reactive oxygen species after exposure to successive doses of solvated electrons, the strongest possible one-e- reducing agent in water. Chlorination activity was still present after a very high irradiation dose, indicating that radiation damage does not take place at the active site, hindered in the core of MPO structure. Decay kinetics show a dependence on the wavelength, supporting that the process must occur at peripheral functional groups situated on external and readily accessible locations of the enzyme. These results are relevant to understand the mechanism of resistance of our innate anti-pathogenic defense system and also to get insight into potential strategies to regulate MPO levels as a therapeutic target in autoimmune diseases.
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Affiliation(s)
- Daniel R Ramos
- Universidade da Coruña, Chemical Reactivity & Photoreactivity Group (REACT!), Department of Chemistry, CICA & Faculty of Sciences, A Zapateira s/n, E-15071 A Coruña, Spain.
| | - M Isabel Fernández
- Universidade da Coruña, Chemical Reactivity & Photoreactivity Group (REACT!), Department of Chemistry, CICA & Faculty of Sciences, A Zapateira s/n, E-15071 A Coruña, Spain
| | - Paul G Furtmüller
- Department of Chemistry, Institute of Biochemistry, BOKU-University of Natural Resources and Life Sciences, Muthgasse 18, A-1190 Vienna, Austria
| | - Christian Obinger
- Department of Chemistry, Institute of Biochemistry, BOKU-University of Natural Resources and Life Sciences, Muthgasse 18, A-1190 Vienna, Austria
| | - M Victoria García
- Universidade da Coruña, Chemical Reactivity & Photoreactivity Group (REACT!), Department of Chemistry, CICA & Faculty of Sciences, A Zapateira s/n, E-15071 A Coruña, Spain
| | - J Arturo Santaballa
- Universidade da Coruña, Chemical Reactivity & Photoreactivity Group (REACT!), Department of Chemistry, CICA & Faculty of Sciences, A Zapateira s/n, E-15071 A Coruña, Spain
| | - Moisés Canle
- Universidade da Coruña, Chemical Reactivity & Photoreactivity Group (REACT!), Department of Chemistry, CICA & Faculty of Sciences, A Zapateira s/n, E-15071 A Coruña, Spain.
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18
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Comoglu M, Dede F, Yenigun EC, Topcuoglu C, Inan O, Sahiner ES, Ates I. Effects of Medium Cutoff Membranes on Pro-Inflammatory Cytokine and Oxidative Marker Levels in Patients with Sepsis Who Developed Acute Kidney Injury. Blood Purif 2021; 51:772-779. [PMID: 34814149 DOI: 10.1159/000519881] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 09/27/2021] [Indexed: 11/19/2022]
Abstract
INTRODUCTION There is insufficient data on the role of the medium cutoff (MCO) membranes in the clearance of pro-inflammatory cytokines and oxidant radicals in patients with sepsis requiring hemodialysis. METHODS The study consisted of 38 septic patients who developed acute kidney injury (AKI) and who were scheduled to undergo 2 sessions of hemodialysis. Nineteen patients underwent their first dialysis session with the MCO membrane and 19 patients with the high-flux (HF) membrane. In the second session, the membranes were switched. Pro-inflammatory cytokine and oxidative marker levels were measured in blood samples obtained before and after both dialysis sessions. Reduction ratios were compared for the 2 types of hemodialysis membranes. RESULTS After the first session, there was a greater reduction in tumor necrosis factor (TNF)-α with the MCO membrane (28.2 ± 21.1 vs. 8.0 ± 6.6, p = 0.001). After the second session, there was a greater reduction in interleukin (IL)-6 (27.8 ± 26.5 vs. 5.9 ± 13.3, p = 0.003) and IL-1β (20.5 ± 21.1 vs. 4.0 ± 6.5, p = 0.004) with the MCO membrane. When the first and second sessions of all 38 patients were compared, the reductions in TNF-α, IL-6, and IL-1β were consistently greater for MCO than HF (p = 0.001, p = 0.006, p < 0.001, respectively). The reductions in total antioxidant status, total oxidant status, and myeloperoxidase were not statistically different for the 2 types of dialysis membranes. CONCLUSIONS MCO membrane was superior to HF membrane in the removal of cytokines in septic patients with AKI. However, a similar effect was not observed for oxidative stress markers.
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Affiliation(s)
- Mustafa Comoglu
- Department of Internal Medicine, Ankara City Hospital, Ankara, Turkey
| | - Fatih Dede
- Department of Nephrology, Ankara City Hospital, Ankara, Turkey
| | | | - Canan Topcuoglu
- Department of Biochemistry, Ankara City Hospital, Ankara, Turkey
| | - Osman Inan
- Department of Internal Medicine, Ankara City Hospital, Ankara, Turkey
| | | | - Ihsan Ates
- Department of Internal Medicine, Ankara City Hospital, Ankara, Turkey
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Changes of Metabolic Biomarker Levels upon One-Year Anti-TNF-α Therapy in Rheumatoid Arthritis and Ankylosing Spondylitis: Associations with Vascular Pathophysiology. Biomolecules 2021; 11:biom11101535. [PMID: 34680168 PMCID: PMC8533731 DOI: 10.3390/biom11101535] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 10/15/2021] [Accepted: 10/15/2021] [Indexed: 12/12/2022] Open
Abstract
Background: Cardiovascular (CV) morbidity, mortality, and metabolic syndrome are associated with rheumatoid arthritis (RA) and ankylosing spondylitis (AS). Here, lipids and other metabolic markers in relation to vascular function and clinical markers were evaluated in RA and AS patients undergoing one-year anti-TNF therapy. Patients and methods: Fifty-three patients including 36 RA patients treated with either etanercept (ETN) or certolizumab pegol (CZP) and 17 AS patients treated with ETN were included in a 12-month follow-up study. Various lipids, paraoxonase (PON) and arylesterase (ARE) activities, myeloperoxidase (MPO) and adipokine levels were determined overtime. Ultrasonography was performed to determine flow-mediated vasodilation (FMD), common carotid intima-media thickness (ccIMT), and arterial pulse-wave velocity (PWV) in all patients. All assessments were performed at baseline and 6 and 12 months after treatment initiation. Results: Anti-TNF therapy decreased ARE activity, MPO, adiponectin, and chemerin levels after 12 months (p < 0.05). Lipids, PON activity, and leptin remained unchanged. Regression analyses suggested variable associations of IMT, PWV, and FMD with ARE, MPO, leptin, and lipids (p < 0.05). On the other hand, these metabolic parameters were significantly associated with disease duration, CV history, CRP, obesity, PWV, and IMT (p < 0.05). One-year anti-TNF treatment together with baseline leptin (p = 0.039) or CRP (p = 0.016) levels determined 12 months of lipid changes overtime. TNF inhibition together with baseline disease activity determined ARE activity changes (p = 0.046). Anti-TNF therapy and baseline chemerin levels determined IMT changes overtime (p = 0.003). Conclusions: Assessment of various metabolic parameters together with disease activity, CRP, and ultrasound-based techniques may exert additional value in determining CV burden and in monitoring the effects of biologics on preclinical vascular pathophysiology.
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20
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Ustabas Kahraman F, Çakir FB, Buhur Pirimoglu M, Torun E, Ergen HA, Doğan Demir A. Association of Myeloperoxidase Gene Polymorphism With Iron Deficiency Anemia in Turkish Children. J Pediatr Hematol Oncol 2021; 43:e941-e945. [PMID: 33661166 DOI: 10.1097/mph.0000000000002125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 01/21/2021] [Indexed: 11/26/2022]
Abstract
This study was performed to investigate the gene polymorphisms of the myeloperoxidase (MPO) enzyme and to determine whether MPO gene polymorphisms influence the response to iron therapy in pediatric patients with iron deficiency anemia (IDA). In this case-control study, 50 Turkish children with IDA and 50 healthy controls were enrolled. Three MPO gene alleles were selected for genotyping in the study: GG, AG, and AA. The relationships of alleles with IDA were analyzed and compared in patients and controls. Pretreatment and posttreatment laboratory parameters and gene polymorphisms were compared in the patient group. There was a significant difference between patients with IDA and controls regarding genotype frequencies of the AA, GG, and AG alleles (P=0.005). However, the AG allele was found to be associated with variations in hemoglobin, red blood cell, hematocrit, mean corpuscular volumes, and mean corpuscular Hb concentrations levels. The frequency of AA, GG, and AG alleles of the MPO gene was potentially associated with changes in iron metabolism and the AG allele led to variations in various hemogram parameters.
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Affiliation(s)
| | - Fatma Betül Çakir
- Pediatric Hematology-Oncology, Bezmialem Vakif University, Faculty of Medicine
| | | | | | - Hayriye Arzu Ergen
- Department of Moleculer Medicine, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul
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21
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Liu Q, Li J, Liu X, Yuan L, Zhao L, Chang YT, Liu X, Peng J. The screening of drug-induced nephrotoxicity using gold nanocluster-based ratiometric fluorescent probes. NANOSCALE 2021; 13:13835-13844. [PMID: 34477658 DOI: 10.1039/d1nr01006a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Herbal medicines are potential candidates for the treatment of various diseases, but their medication safety remains poorly regulated. Current screening methods for the herbal medicine-induced nephrotoxic effects include histological and serological assessments, which often fail to reflect the kidney dysfunction instantly. Here we report a ratiometric fluorescence approach for the rapid and facile screening of drug-induced acute kidney injury using chromophore-modified gold nanoclusters. These gold nanoclusters are highly sensitive to reactive oxygen species (ROS), with a detection limit of 14 nM for ˙OH. After passing through the glomerular filtration barrier, the gold nanocluster-based probes can quantify the fluctuation of the ROS level in the kidneys and evaluate the risk of drug-induced nephrotoxicity. We further employed nephrotoxic triptolide as the model drug and the screening of drug-induced early renal injury was demonstrated using the nanoprobes, which is unattainable by conventional diagnostic approaches. Our fluorescent probes also allow the identification of other nephrotoxic components from herbal medicine such as aristolochine, providing a high-throughput strategy for the screening of herbal supplement-induced nephrotoxicity.
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Affiliation(s)
- Qin Liu
- State Key Laboratory of Natural Medicine, the School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, China.
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22
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Pham TC, Nguyen VN, Choi Y, Kim D, Jung OS, Lee DJ, Kim HJ, Lee MW, Yoon J, Kim HM, Lee S. Hypochlorite-Activated Fluorescence Emission and Antibacterial Activities of Imidazole Derivatives for Biological Applications. Front Chem 2021; 9:713078. [PMID: 34322477 PMCID: PMC8311462 DOI: 10.3389/fchem.2021.713078] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 06/17/2021] [Indexed: 12/17/2022] Open
Abstract
The ability to detect hypochlorite (HOCl/ClO-) in vivo is of great importance to identify and visualize infection. Here, we report the use of imidazoline-2-thione (R 1 SR 2 ) probes, which act to both sense ClO- and kill bacteria. The N2C=S moieties can recognize ClO- among various typical reactive oxygen species (ROS) and turn into imidazolium moieties (R 1 IR 2 ) via desulfurization. This was observed through UV-vis absorption and fluorescence emission spectroscopy, with a high fluorescence emission quantum yield (ՓF = 43-99%) and large Stokes shift (∆v∼115 nm). Furthermore, the DIM probe, which was prepared by treating the DSM probe with ClO-, also displayed antibacterial efficacy toward not only Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) but also methicillin-resistant Staphylococcus aureus (MRSA) and extended-spectrum ß-lactamase-producing Escherichia coli (ESBL-EC), that is, antibiotic-resistant bacteria. These results suggest that the DSM probe has great potential to carry out the dual roles of a fluorogenic probe and killer of bacteria.
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Affiliation(s)
- Thanh Chung Pham
- Industry 4.0 Convergence Bionics Engineering, Pukyong National University, Busan, South Korea
| | - Van-Nghia Nguyen
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, South Korea
| | - Yeonghwan Choi
- Industry 4.0 Convergence Bionics Engineering, Pukyong National University, Busan, South Korea
| | - Dongwon Kim
- Department of Chemistry, Pusan National University, Busan, South Korea
| | - Ok-Sang Jung
- Department of Chemistry, Pusan National University, Busan, South Korea
| | - Dong Joon Lee
- Department of Energy Systems Research, Ajou University, Suwon, South Korea
| | - Hak Jun Kim
- Department of Chemistry, Pukyong National University, Busan, South Korea
| | - Myung Won Lee
- Department of Chemistry, Pukyong National University, Busan, South Korea
| | - Juyoung Yoon
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, South Korea
| | - Hwan Myung Kim
- Department of Energy Systems Research, Ajou University, Suwon, South Korea
- Department of Chemistry, Ajou University, Suwon, South Korea
| | - Songyi Lee
- Industry 4.0 Convergence Bionics Engineering, Pukyong National University, Busan, South Korea
- Department of Chemistry, Pukyong National University, Busan, South Korea
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da Fonseca CAR, Dos Reis AS, Pinz MP, Peglow TJ, Schumacher RF, Perin G, Martins AWDS, Domingues WB, Campos VF, Soares MP, Roehrs JA, Luchese C, Wilhelm EA. Bis-(3-amino-2-pyridine) diselenide improves psychiatric disorders -atopic dermatitis comorbidity by regulating inflammatory and oxidative status in mice. Chem Biol Interact 2021; 345:109564. [PMID: 34161785 DOI: 10.1016/j.cbi.2021.109564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/26/2021] [Accepted: 06/17/2021] [Indexed: 10/21/2022]
Abstract
Suppressive effect of bis (3-amino-2-pyridine) diselenide (BAPD) on psychiatric disorders - atopic dermatitis (AD) comorbidity in mice was investigated. To sensitize the animals, 2,4-dinitrochlorobenzene (DNCB) was applied to their dorsal skin on days 1-3. Mice were challenged with DNCB on their ears and dorsal skin on days 14, 17, 20, 23, 26, and 29. BAPD and Dexamethasone were administered to the animals, from days 14-29, and skin severity scores and behavioral tests were determined. Oxidative stress and inflammatory parameters were evaluated on the dorsal skin of mice. Na+, K+-ATPase activity and corticosterone levels were determined in hippocampus/cerebral cortex and plasma of mice, respectively. BAPD improved cutaneous damage, scratching behavior, inflammatory and oxidative stress markers. BAPD showed anxiolytic- and antidepressant-like effects and restored Na+, K+-ATPase activity and corticosterone levels. The present study was performed using female mice due the susceptibility for this disease. But, the evaluation of AD model in male mice would help to verify whether the male gender has the same predisposition to present this pathology. Our data demonstrated the suppressive effect of BAPD on psychiatric disorders - AD comorbidity by regulating inflammatory and oxidative status in mice.
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Affiliation(s)
- Caren Aline Ramson da Fonseca
- Programa de Pós-graduação em Bioquímica e Bioprospecção, Laboratório de Pesquisa em Farmacologia Bioquímica (LaFarBio), Grupo de Pesquisa em Neurobiotecnologia (GPN), Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Pelotas, CEP 96010-900, RS, Brazil
| | - Angélica Schiavom Dos Reis
- Programa de Pós-graduação em Bioquímica e Bioprospecção, Laboratório de Pesquisa em Farmacologia Bioquímica (LaFarBio), Grupo de Pesquisa em Neurobiotecnologia (GPN), Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Pelotas, CEP 96010-900, RS, Brazil
| | - Mikaela Peglow Pinz
- Programa de Pós-graduação em Bioquímica e Bioprospecção, Laboratório de Pesquisa em Farmacologia Bioquímica (LaFarBio), Grupo de Pesquisa em Neurobiotecnologia (GPN), Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Pelotas, CEP 96010-900, RS, Brazil
| | - Thiago Jacobsen Peglow
- Programa de Pós-graduação em Química, Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas, UFPel, CEP - 96010-900, Pelotas, RS, Brazil
| | - Ricardo Frederico Schumacher
- Programa de Pós-graduação em Química, Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas, UFPel, CEP - 96010-900, Pelotas, RS, Brazil
| | - Gelson Perin
- Programa de Pós-graduação em Química, Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas, UFPel, CEP - 96010-900, Pelotas, RS, Brazil
| | - Amanda Weege da Silveira Martins
- Programa de Pós-Graduação em Biotecnologia, Laboratório de Genômica Estrutural do Centro de Desenvolvimento Tecnológico - CDTec - Universidade Federal de Pelotas, UFPel, CEP - 96010-900, Pelotas, RS, Brazil
| | - William Borges Domingues
- Programa de Pós-Graduação em Biotecnologia, Laboratório de Genômica Estrutural do Centro de Desenvolvimento Tecnológico - CDTec - Universidade Federal de Pelotas, UFPel, CEP - 96010-900, Pelotas, RS, Brazil
| | - Vinicius Farias Campos
- Programa de Pós-Graduação em Biotecnologia, Laboratório de Genômica Estrutural do Centro de Desenvolvimento Tecnológico - CDTec - Universidade Federal de Pelotas, UFPel, CEP - 96010-900, Pelotas, RS, Brazil
| | - Mauro Pereira Soares
- Laboratório Regional de Diagnóstico, Faculdade de Veterinária - Universidade Federal de Pelotas, UFPel, CEP - 96010-900, Pelotas, RS, Brazil
| | - Juliano Alex Roehrs
- Instituto Federal de Educação, Ciência e Tecnologia Sul-rio-grandense, IFSul, CEP - 96015-360, Pelotas, RS, Brazil
| | - Cristiane Luchese
- Programa de Pós-graduação em Bioquímica e Bioprospecção, Laboratório de Pesquisa em Farmacologia Bioquímica (LaFarBio), Grupo de Pesquisa em Neurobiotecnologia (GPN), Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Pelotas, CEP 96010-900, RS, Brazil.
| | - Ethel Antunes Wilhelm
- Programa de Pós-graduação em Bioquímica e Bioprospecção, Laboratório de Pesquisa em Farmacologia Bioquímica (LaFarBio), Grupo de Pesquisa em Neurobiotecnologia (GPN), Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Pelotas, CEP 96010-900, RS, Brazil.
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Terrill JR, Webb SM, Arthur PG, Hackett MJ. Investigation of the effect of taurine supplementation on muscle taurine content in the mdx mouse model of Duchenne muscular dystrophy using chemically specific synchrotron imaging. Analyst 2021; 145:7242-7251. [PMID: 32893271 DOI: 10.1039/d0an00642d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Duchenne muscular dystrophy (DMD) is a lethal genetic muscle wasting disorder, which currently has no cure. Supplementation with the drug taurine has been shown to offer therapeutic benefit in the mdx model for DMD, however the mechanism by which taurine protects dystrophic muscle is not fully understood. Mdx muscle is deficient in taurine, however it is not known if this deficiency occurs in the extracellular space, in other cells present in the tissue (such as immune cells) or in the myofibre itself. Likewise, the tissue location of taurine enrichment in taurine treated mdx muscle is not known. In this study we applied X-ray absorption near edge spectroscopy (XANES) at the sulfur K-edge in an imaging format to determine taurine distribution in muscle tissue. XANES is the only technique currently capable of imaging taurine directly in muscle tissue, at a spatial resolution approaching myocyte cell size (20-50 μm). Using a multi-modal approach of XANES imaging and histology on the same tissue sections, we show that in mdx muscle, it is the myofibres that are deficient in taurine, and taurine supplementation ameliorates this deficiency. Increasing the taurine content of mdx myofibres was associated with a decrease in myofibre damage (as shown by the percentage of intact myofibres) and inflammation. These data will help drive future studies to better elucidate the molecular mechanisms through which taurine protects dystrophic muscle; they also support the continued investigation of taurine as a therapeutic intervention for DMD.
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Affiliation(s)
- Jessica R Terrill
- School of Molecular Sciences, the University of Western Australia, Perth, Western Australia AUS 6009, Australia
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25
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Yang C, Zhao K, Chen X, Jiang L, Li P, Huang P. Pellino1 deficiency reprograms cardiomyocytes energy metabolism in lipopolysaccharide-induced myocardial dysfunction. Amino Acids 2021; 53:713-737. [PMID: 33885999 PMCID: PMC8128834 DOI: 10.1007/s00726-021-02978-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 04/03/2021] [Indexed: 11/30/2022]
Abstract
Pellino1 has been shown to regulate proinflammatory genes by activating the nuclear factor kappa B (NF-κB) and Toll-like receptor (TLR) signaling pathways, which are important in the pathological development of lipopolysaccharide (LPS)-induced myocarditis. However, it is still unknown whether silencing Pellino1 (si-Pellino1) has a therapeutic effect on this disease. Here, we showed that silencing Pellino1 can be a potential protective strategy for abnormal myocardial energy metabolism in LPS-induced myocarditis. We used liquid chromatography electrospray–ionization tandem mass spectrometry (LC–MS/MS) to analyze samples from si-Pellino1 neonatal rat cardiac myocytes (NRCMs) treated with LPS or left untreated. After normalization of the data, metabolite interaction analysis of matched KEGG pathway associations following si-Pellino1 treatment was applied, accompanied by interaction analysis of gene and metabolite associations after this treatment. Moreover, we used western blot (WB) and polymerase chain reaction (PCR) analyses to determine the expression of genes involved in regulating cardiac energy and energy metabolism in different groups. LC–MS-based metabolic profiling analysis demonstrated that si-Pellino1 treatment could alleviate or even reverse LPS-induced cellular damage by altering cardiomyocytes energy metabolism accompanied by changes in key genes (Cs, Cpt2, and Acadm) and metabolites (3-oxoocotanoyl-CoA, hydroxypyruvic acid, lauroyl-CoA, and NADPH) in NRCMs. Overall, our study unveiled the promising cardioprotective effect of silencing Pellino1 in LPS-induced myocarditis through fuel and energy metabolic regulation, which can also serve as biomarkers for this disease.
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Affiliation(s)
- Chuanxi Yang
- Department of Cardiology, Medical School of Southeast University, Nanjing, China.,Department of Cardiology, Yangpu Hospital, Tongji University School of Medicine, Shanghai, 200090, China
| | - Kun Zhao
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China
| | - Xufeng Chen
- Department of Emergency, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China
| | - Lei Jiang
- Department of Emergency, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China
| | - Peng Li
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China.
| | - Peipei Huang
- Department of Emergency, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China.
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Tripathi P, Agarwal S, Tewari S, Mandal K. Status of Catalase, Glutathione Peroxidase, Glutathione S-Transferase, and Myeloperoxidase Gene Polymorphisms in Beta-Thalassemia Major Patients to Assess Oxidative Injury and Its Association with Enzyme Activities. J Pediatr Genet 2021; 11:198-212. [DOI: 10.1055/s-0041-1723961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 12/16/2020] [Indexed: 10/21/2022]
Abstract
AbstractBeta-thalassemic patients require regular blood transfusion to sustain their life which leads to iron overload and causes oxidative stress. The aim of this study was to investigate the status of variants in genes including GSTM1, GSTT1 (null/present), CT-262 (C > T) and CT-89 (A > T), glutathione peroxidase (GPx), and myeloperoxidase (MPO). The genotype studies were conducted with 200 thalassemia major (TM) patients and 200 healthy controls. Genotyping of GST gene was performed by multiplex polymerase chain reaction (PCR), whereas for CT, GPx and MPO genesvariants PCR- restriction fragment length polymorphism technique used. However, the enzyme activities were measured only in the patients group to assess the association with the genotypes. All enzyme estimations were performed by ELISA. We observed higher frequency of GSTT1 null, CT-89 (A > T), GPx1 198 (C > T) and MPO-463 (G > A) polymorphisms in TM patient than healthy controls. However, CT-262 (C > T) polymorphism was not found to be statistically significantly different between patients and controls. Our results suggest that frequency of null allele of glutathione-S-transferase is significantly high among TM patients. The other alleles CT-89 (A > T), GPx1 198 (C > T), and MPO-463 (G > A) are linked to decreased CT, GPX, and MPO enzyme activities.
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Affiliation(s)
- Poonam Tripathi
- Department of Genetics, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Sarita Agarwal
- Department of Genetics, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Satyendra Tewari
- Department of Cardiology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Kausik Mandal
- Department of Genetics, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
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Pegoraro NS, Camponogara C, Cruz L, Oliveira SM. Oleic acid exhibits an expressive anti-inflammatory effect in croton oil-induced irritant contact dermatitis without the occurrence of toxicological effects in mice. JOURNAL OF ETHNOPHARMACOLOGY 2021; 267:113486. [PMID: 33091495 DOI: 10.1016/j.jep.2020.113486] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 10/15/2020] [Accepted: 10/16/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cutaneous inflammatory diseases, such as irritant contact dermatitis, are usually treated with topical corticosteroids, which cause systemic and local adverse effects limiting their use. Thus, the discovery of new therapeutic alternatives able to effectively treat skin inflammatory disorders, without causing adverse effects, is urgently needed. AIM OF THE STUDY To investigate the topical anti-inflammatory effect of oleic acid (OA), a monounsaturated fatty acid, into Pemulen® TR2-based semisolid dosage forms, employing a croton oil-induced irritant contact dermatitis model in mice. MATERIALS AND METHODS Male Swiss mice were submitted to skin inflammation protocols by acute and repeated applications of croton oil. The anti-inflammatory activity of Pemulen® TR2 hydrogels containing OA was evaluated by assessing oedema, inflammatory cell infiltration, and pro-inflammatory cytokine IL-1β levels. The mechanisms of action of OA were evaluated using cytokine IL-1β application or pretreatment with the glucocorticoid antagonist mifepristone. Possible toxic effects of OA were also assessed. RESULTS Pemulen® TR2 3% OA inhibited the acute ear oedema [maximal inhibition (Imax) = 76.41 ± 5.69%], similarly to dexamethasone (Imax = 84.94 ± 2.16%), and also inhibited ear oedema after repeated croton oil application with Imax = 85.75 ± 3.08%, similar to dexamethasone (Imax = 81.03 ± 4.66%) on the day 7 of the experiment. Croton oil increased myeloperoxidase activity, which was inhibited by Pemulen® TR2 3% OA (Imax = 71.37 ± 10.97%) and by 0.5% dexamethasone (Imax = 96.31 ± 3.73%). Pemulen® TR2 3% OA also prevented the increase in pro-inflammatory cytokine IL-1β levels induced by croton oil (Imax = 94.18 ± 12.03%), similar to 0.5% dexamethasone (Imax = 87.21 ± 10.58%). Besides, both Pemulen® TR2 3% OA and 0.5% dexamethasone inhibited IL-1β-induced ear oedema with an Imax of 80.58 ± 2.45% and 77.46 ± 1.92%, respectively. OA and dexamethasone anti-inflammatory effects were prevented by 100% and 91.43 ± 5.43%, respectively, after pretreatment with mifepristone. No adverse effects were related to Pemulen® TR2 3% OA administration. CONCLUSIONS OA demonstrated anti-inflammatory efficacy similar to dexamethasone, clinically used to treat skin inflammatory conditions, without presenting adverse effects.
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Affiliation(s)
- Natháli Schopf Pegoraro
- Graduate Program in Biological Sciences: Biochemistry Toxicology, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Camila Camponogara
- Graduate Program in Biological Sciences: Biochemistry Toxicology, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Letícia Cruz
- Graduate Program in Pharmaceutical Sciences, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Sara Marchesan Oliveira
- Graduate Program in Biological Sciences: Biochemistry Toxicology, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil.
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Markasz L, Olsson KW, Holmström G, Sindelar R. Cluster Analysis of Early Postnatal Biochemical Markers May Predict Development of Retinopathy of Prematurity. Transl Vis Sci Technol 2020; 9:14. [PMID: 33344058 PMCID: PMC7726592 DOI: 10.1167/tvst.9.13.14] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 10/19/2020] [Indexed: 12/15/2022] Open
Abstract
Purpose Growth factors and inflammatory and angiogenetic proteins are involved in the development of retinopathy of prematurity (ROP). However, no early biochemical markers are in clinical use to predict ROP. By performing cluster analysis of multiple biomarkers, we aimed to determine patient groups with high and low risk for developing ROP. Methods In total, 202 protein markers in plasma were quantified by proximity extension assay from 35 extremely preterm infants on day 2 of life. Infants were sorted in groups by automated two-dimensional hierarchical clustering of all biomarkers. ROP was classified as stages I to III with or without surgical treatment. Predictive biomarkers were evaluated by analysis of variance and detected differences by two-sided paired t-test with Bonferroni corrections for multiple comparisons. Results Differences in 39 biochemical markers divided infants without ROP into two control groups (control 1, n = 7; control 2, n = 5; P < 0.05). Sixty-six biochemical markers defined differences between the control groups (n = 13) and all ROP infants (n = 23; P < 0.05). PARK7, VIM, MPO, CD69, and NEMO were markedly increased in control 1 compared to all ROP infants (P < 0.001). Lower TNFRSF4 and higher HER2 and GAL appeared in infants with ROP as compared to control 1 and/or 2 (P < 0.05, respectively). Conclusions Our data suggest that early elevated levels of PARK7, VIM, MPO, CD69, and NEMO may be associated with lower risk of developing ROP. Lower levels of TNFRSF4 with higher levels of HER2 and GAL may predict ROP development. Translational Relevance Cluster analysis of early postnatal biomarkers may help to identify infants with low or high risk of developing ROP.
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Affiliation(s)
- Laszlo Markasz
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Karl-Wilhelm Olsson
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden.,Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Gerd Holmström
- Department of Neuroscience/Ophthalmology, Uppsala University, Uppsala, Sweden
| | - Richard Sindelar
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
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Bushueva OY. Genetic Variants rs1049255 CYBA and rs2333227 MPO are Associated with Susceptibility to Coronary Artery Disease in Russian Residents of Central Russia. KARDIOLOGIIA 2020; 60:1229. [PMID: 33228505 DOI: 10.18087/cardio.2020.10.n1229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 09/11/2020] [Indexed: 06/11/2023]
Abstract
Aim To study association of single-nucleotide polymorphisms rs1049255 CYBA and rs2333227 MPO with development of ischemic heart disease (IHD) in Russian residents of Central Russia.Material and methods The study material was DNA samples from 436 patients with IHD (265 men, 171 women; mean age, 61 years) and 370 sex- and age-matched arbitrarily healthy volunteers (209 men, 161 women; mean age, 60 years). Genotyping was performed by allelic discrimination with TaqMan probes.Results Comparative analysis of genotype frequency (log-additive regression model) showed that SNP rs1049255 CYBA (odds ratio, OR, 0.79 at 95 % confidence interval, CI, from 0.65 to 0.96; p=0.02) and rs2333227 MPO (OR 0.72 at 95 % CI from 0.55 to 0.95; p=0.02) were associated with a decreased risk of IHD adjusted for sex and age. Analysis of sex-specific effects showed that the protective effect of rs1049255 CYBA was evident only in men (OR 0.72 at 95 % CI from 0.55 to 0.94; p=0.16).Conclusion The study demonstrated a protective effect of rs1049255 CYBA and rs2333227 MPO with respect of IHD in Russians. The protective effect of rs1049255 CYBA was observed only in men.
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Choromańska B, Myśliwiec P, Łuba M, Wojskowicz P, Myśliwiec H, Choromańska K, Dadan J, Żendzian-Piotrowska M, Zalewska A, Maciejczyk M. Bariatric Surgery Normalizes Protein Glycoxidation and Nitrosative Stress in Morbidly Obese Patients. Antioxidants (Basel) 2020; 9:antiox9111087. [PMID: 33158288 PMCID: PMC7694407 DOI: 10.3390/antiox9111087] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 11/02/2020] [Accepted: 11/02/2020] [Indexed: 12/17/2022] Open
Abstract
The results of recent studies indicate the key role of nitrosative stress and protein oxidative damage in the development of morbid obesity. Nevertheless, the effect of bariatric surgery on protein oxidation/glycation and nitrosative/nitrative stress is not yet known. This is the first study evaluating protein glycoxidation and protein nitrosative damage in morbidly obese patients before and after (one, three, six and twelve months) laparoscopic sleeve gastrectomy. The study included 50 women with morbid obesity as well as 50 age- and gender-matched healthy controls. We demonstrated significant increases in serum myeloperoxidase, plasma glycooxidative products (dityrosine, kynurenine, N-formyl-kynurenine, amyloid, Amadori products, glycophore), protein oxidative damage (ischemia modified albumin) and nitrosative/nitrative stress (nitric oxide, peroxy-nitrite, S-nitrosothiols and nitro-tyrosine) in morbidly obese subjects as compared to lean controls, whereas plasma tryptophan and total thiols were statistically decreased. Bariatric surgery generally reduces the abnormalities in the glycoxidation of proteins and nitrosative/nitrative stress. Noteworthily, in the patients with metabolic syndrome (MS+), we showed no differences in most redox biomarkers, as compared to morbidly obese patients without MS (MS−). However, two markers: were able to differentiate MS+ and MS− with high specificity and sensitivity: peroxy-nitrite (>70%) and S-nitrosothiols (>60%). Further studies are required to confirm the diagnostic usefulness of such biomarkers.
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Affiliation(s)
- Barbara Choromańska
- Department of General and Endocrine Surgery, Medical University of Bialystok, 24a M. Sklodowskiej-Curie Street, 15-276 Bialystok, Poland; (P.M.); (M.Ł.); (P.W.); (J.D.)
- Correspondence: (B.C.); (M.M.)
| | - Piotr Myśliwiec
- Department of General and Endocrine Surgery, Medical University of Bialystok, 24a M. Sklodowskiej-Curie Street, 15-276 Bialystok, Poland; (P.M.); (M.Ł.); (P.W.); (J.D.)
| | - Magdalena Łuba
- Department of General and Endocrine Surgery, Medical University of Bialystok, 24a M. Sklodowskiej-Curie Street, 15-276 Bialystok, Poland; (P.M.); (M.Ł.); (P.W.); (J.D.)
| | - Piotr Wojskowicz
- Department of General and Endocrine Surgery, Medical University of Bialystok, 24a M. Sklodowskiej-Curie Street, 15-276 Bialystok, Poland; (P.M.); (M.Ł.); (P.W.); (J.D.)
| | - Hanna Myśliwiec
- Department of Dermatology and Venereology, Medical University of Bialystok, 14 Żurawia Street, 15-540 Bialystok, Poland;
| | - Katarzyna Choromańska
- Department of Oral Surgery, Medical University of Gdansk, 7 Dębinki Street, 80-211 Gdansk, Poland;
| | - Jacek Dadan
- Department of General and Endocrine Surgery, Medical University of Bialystok, 24a M. Sklodowskiej-Curie Street, 15-276 Bialystok, Poland; (P.M.); (M.Ł.); (P.W.); (J.D.)
| | - Małgorzata Żendzian-Piotrowska
- Department of Hygiene, Epidemiology and Ergonomics, Medical University of Bialystok, 2c Mickiewicza Street, 15-233 Bialystok, Poland;
| | - Anna Zalewska
- Experimental Dentistry Laboratory, Medical University of Bialystok, 24a M. Sklodowskiej-Curie Street, 15-274 Bialystok, Poland;
| | - Mateusz Maciejczyk
- Department of Hygiene, Epidemiology and Ergonomics, Medical University of Bialystok, 2c Mickiewicza Street, 15-233 Bialystok, Poland;
- Correspondence: (B.C.); (M.M.)
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Santos AL, Júnior CP, Neto RN, Santos MH, Santos VF, Rocha BA, Sousa EM, Carvalho RC, Menezes IR, Oliveira MR, Dantas LB, Silva TM, Teixeira CS. Machaerium acutifolium lectin inhibits inflammatory responses through cytokine modulation. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.06.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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The Impact of Hypertension and Metabolic Syndrome on Nitrosative Stress and Glutathione Metabolism in Patients with Morbid Obesity. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:1057570. [PMID: 32963689 PMCID: PMC7501544 DOI: 10.1155/2020/1057570] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 08/08/2020] [Accepted: 08/31/2020] [Indexed: 02/06/2023]
Abstract
In this pathbreaking study, we evaluated nitrosative stress in morbidly obese patients with and without metabolic syndrome. 62 women with class 3 obesity (BMI > 40 kg/m2) were divided into three subgroups: obese patients (OB), obese patients with hypertension (OB+HYP), and obese patients with metabolic syndrome (OB+MS). In comparison to the lean patients, OB had increased levels of serum myeloperoxidase (MPO), plasma nitric oxide (NO), S-nitrosothiols, and peroxynitrite (ONOO−), as well as nitrotyrosine, while oxidized glutathione (GSSG) rose only in OB+HYP group. Interestingly, ONOO− was significantly higher in OB+HYP and OB+MS as compared to OB group, while MPO only in OB+MS group. OB+MS had greater nitrotyrosine and S-nitrosothiol values than OB+HYP. Moreover, peroxynitrite could differentiate OB from OB+HYP and OB+MS (AUC 0.9292; p < 0.0001; 87.5% sensitivity, 90% specificity) as well as between OB and OB+MS group (AUC 0.9125; p < 0.0001; 81.25% sensitivity, 83.33%). In conclusion, we showed that MPO activity, NO formation, and nitrosative damage to proteins parallel the progression of metabolic disturbances of obesity. Evaluation of ONOO− concentrations may help predict the development of hypertension and metabolic syndrome in patients with morbid obesity; however, longer-term studies are required for larger numbers of patients.
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Yu H, Liu Y, Wang M, Restrepo RJ, Wang D, Kalogeris TJ, Neumann WL, Ford DA, Korthuis RJ. Myeloperoxidase instigates proinflammatory responses in a cecal ligation and puncture rat model of sepsis. Am J Physiol Heart Circ Physiol 2020; 319:H705-H721. [PMID: 32762560 DOI: 10.1152/ajpheart.00440.2020] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Myeloperoxidase (MPO)-derived hypochlorous (HOCl) reacts with membrane plasmalogens to yield α-chlorofatty aldehydes such as 2-chlorofatty aldehyde (2-ClFALD) and its metabolite 2-chlorofatty acid (2-ClFA). Recent studies showed that 2-ClFALD and 2-ClFA serve as mediators of the inflammatory responses to sepsis by as yet unknown mechanisms. Since no scavenger for chlorinated lipids is available and on the basis of the well-established role of the MPO/HOCl/chlorinated lipid axis in inflammatory responses, we hypothesized that treatment with MPO inhibitors (N-acetyl lysyltyrosylcysteine amide or 4-aminobenzoic acid hydrazide) would inhibit inflammation and proinflammatory mediator expression induced by cecal ligation and puncture (CLP). We used intravital microscopy to quantify in vivo inflammatory responses in Sham and CLP rats with or without MPO inhibition. Small intestines, mesenteries, and lungs were collected to assess changes in MPO-positive staining and lung injury, respectively, as well as free 2-ClFA and proinflammatory mediators levels. CLP caused neutrophil infiltration, 2-ClFA generation, acute lung injury, leukocyte-/platelet-endothelium interactions, mast cell activation (MCA), plasminogen activator inhibitor-1 (PAI-1) production, and the expression of several cytokines, chemokines, and vascular endothelial growth factor, changes that were reduced by MPO inhibition. Pretreatment with a PAI-1 inhibitor or MC stabilizer prevented CLP-induced leukocyte-endothelium interactions and MCA, and abrogated exogenous 2-ClFALD-induced inflammatory responses. Thus, we provide evidence that MPO instigates these inflammatory changes in CLP and that chlorinated lipids may serve as a mechanistic link between the enzymatic activity of MPO and PAI-1- and mast cell-dependent adhesive interactions, providing a rationale for new therapeutic interventions in sepsis.NEW & NOTEWORTHY Using two distinct myeloperoxidase (MPO) inhibitors, we show for the first time that MPO plays an important role in producing increases in free 2-chlorofatty aldehyde (2-ClFALD)-a powerful proinflammatory chlorinated lipid in plasma and intestine-a number of cytokines and other inflammatory mediators, leukocyte and platelet rolling and adhesion in postcapillary venules, and lung injury in a cecal ligation and puncture model of sepsis. In addition, the use of a plasminogen activator inhibitor-1 (PAI-1) inhibitor or a mast cell stabilizer prevented inflammatory responses in CLP-induced sepsis. PAI-1 inhibition also prevented the proinflammatory responses to exogenous 2-ClFALD superfusion. Thus, our study provides some of the first evidence that MPO-derived free 2-ClFA plays an important role in CLP-induced sepsis by a PAI-1- and mast cell-dependent mechanism.
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Affiliation(s)
- Hong Yu
- Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, Missouri
| | - Yajun Liu
- Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, Missouri
| | - Meifang Wang
- Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, Missouri
| | - Ricardo J Restrepo
- Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, Missouri
| | - Derek Wang
- Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, Missouri
| | - Theodore J Kalogeris
- Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, Missouri
| | - William L Neumann
- Department of Pharmaceutical Sciences, Edwardsville School of Pharmacy, Southern Illinois University, Edwardsville, Illinois
| | - David A Ford
- Department of Biochemistry and Molecular Biology, Center for Cardiovascular Research, Saint Louis University School of Medicine, Saint Louis, Missouri
| | - Ronald J Korthuis
- Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, Missouri.,Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
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Ramirez DC, Gomez Mejiba SE. Pulmonary Neutrophilic Inflammation and Noncommunicable Diseases: Pathophysiology, Redox Mechanisms, Biomarkers, and Therapeutics. Antioxid Redox Signal 2020; 33:211-227. [PMID: 32319787 DOI: 10.1089/ars.2020.8098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Significance: Pulmonary neurophilic inflammation (PNI) is the homing and activation of neutrophil with damage to the microvasculature. This process is involved in pulmonary damage in patients exposed to airborne pollutants (exogenous stressors) and also to systemic inflammation/oxidative stress (endogenous stressors) associated with noncommunicable diseases (NCDs). Recent Advances: PNI is an important trigger of the early onset and progression of NCD in susceptible patients exposed to airborne pollutants. Irritation of the lung microvasculature by exogenous and endogenous stressors causes PNI. Circulating endogenous stressors in NCD can cause PNI. Critical Issues: Air pollution-triggered PNI causes increased circulating endogenous stressors that can trigger NCD in susceptible patients. Systemic inflammation/oxidative stress associated with NCD can cause PNI. Inflammation/end-oxidation products of macromolecules are also potential biomarkers and therapeutic targets for NCD-triggered PNI- and PNI-triggered NCD. Future Directions: Understanding the molecular mechanism of PNI triggered by exogenous or endogenous stressors will help explain the early onset of NCD in susceptible patients exposed to air pollution. It can also help undercover biomarkers and mechanism-based therapeutic targets in air pollutant-triggered PNI, PNI-triggered NCD, and NCD-triggered PNI.
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Affiliation(s)
- Dario C Ramirez
- Laboratory of Experimental and Translational Medicine, IMIBIO-SL, CCT-San Luis, CONICET, School of Chemistry, Biochemistry and Pharmacy, National University of San Luis, San Luis, Argentina
| | - Sandra E Gomez Mejiba
- Laboratory of Experimental Therapeutics and Nutrition, IMIBIO-SL, CCT-San Luis, CONICET, School of Health Sciences, National University of San Luis, San Luis, Argentina
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Rocha do Val D, Bezerra MM, Fernandes Gomes FI, Nobre CA, Teixeira SC, Lemos JC, Alves Pereira KM, de Paulo Teixeira Pinto V, Rodrigues E Silva AA, de Sousa Franco E, Bernadete de Sousa Maia M, Chaves HV. Protective effect of Chresta martii extract on the zymosan-induced temporomandibular joint arthritis in rats. J Oral Biol Craniofac Res 2020; 10:276-280. [PMID: 32518744 DOI: 10.1016/j.jobcr.2020.05.005] [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] [Received: 03/21/2020] [Revised: 04/29/2020] [Accepted: 05/15/2020] [Indexed: 11/17/2022] Open
Abstract
Objective Chresta martii is broadly used by folk medicine due to its anti-inflammatory effects, but there is a lack of preclinical data on its pharmacological mechanisms. This study investigated the efficacy of Chresta martii ethanolic extract (CEE) in the zymosan-induced temporomandibular joint arthritis (TMJ) and evaluated the possible role of TNF-α, nitric oxide (NO), and heme oxygenase-1 (HO-1). Methods Male Wistar rats (160-220 g) were pre-treated with CEE (100, 200 or 400 mg/kg; v.o) 1 h before zymosan injection (2 mg; i.art). Mechanical hypernociception (g) was assessed 4 h later. The trigeminal ganglion was collected for TNF-α quantification (ELISA), total cell count and myeloperoxidase activity (MPO) were assayed in the synovial lavage 6 h after arthritis induction. Additionally, animals were pre-treated with L-NAME (30 mg/kg; i.p.) or ZnPP-IX (3 mg/kg, s.c.) to assess the involvement of NO and HO-1, respectively. Results CEE 400 mg/kg (v.o) increased (p < 0.05) hypernociception threshold, reduced the cell counts and MPO activity in the synovial lavage, as well as decreased TNF-α levels in the trigeminal ganglion. ZnPP-IX abolished the analgesic effect of CEE, but not L-NAME. Conclusion The anti-inflammatory and antinociceptive effects of CEE depended on the HO-1 pathway integrity and TNF-α suppression.
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Affiliation(s)
| | - Mirna Marques Bezerra
- Graduate Program in Biotechnology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
- Graduate Program in Health Sciences, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | | | - Christiane Aguiar Nobre
- Graduate Program in Biotechnology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | | | | | - Karuza Maria Alves Pereira
- Department of Legal Medicine and Pathology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
- Graduate Program in Health Sciences, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Vicente de Paulo Teixeira Pinto
- Faculty of Medicine, Federal University of Ceará, Sobral, Brazil
- Graduate Program in Health Sciences, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | | | | | | | - Hellíada Vasconcelos Chaves
- Faculty of Dentistry, Federal University of Ceará, Sobral, Brazil
- Graduate Program in Health Sciences, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
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Ahmad P, Tantry IQ, Ali A, Siddiqui SA, Rehman SU, Waris S, Jairajpuri MA. Structural alteration in hypochlorous acid modified antithrombin indicates generation of neo-epitopes. Arch Biochem Biophys 2020; 685:108332. [PMID: 32194043 DOI: 10.1016/j.abb.2020.108332] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 03/03/2020] [Accepted: 03/10/2020] [Indexed: 01/25/2023]
Abstract
Increased tendency of cancer patients to develop venous thromboembolism (VTE) is associated with high rates of mortality. Elevation of procoagulant proteins and down regulation of naturally occurring coagulation inhibitors appears to form the basis of high risk of VTE in malignancy. A reduced level of anticoagulant protein like antithrombin (AT) will influence both coagulation and angiogenesis, as its cleaved and latent conformations show potent antiangiogenic activity. We show a concentration dependent perturbation in the secondary and tertiary structures of AT conformers exposed to hypochlorous acid (HOCl). Modulated under a very narrow concentration range of HOCl, native AT undergoes oligomerization, aggregation and fragmentation based on spectroscopic, SDS and native-PAGE studies. Factor Xa inhibition assay demonstrated a progressive decrease in inhibition activity of AT on modification by HOCl. Bis-ANS result showed that hydrophobic patches were more exposed in the case of HOCl-modified AT when assessed fluorometrically. Dosage of HOCl-modified AT in experimental animals induced high titer antibodies showing more specificity towards modified forms in comparison to unmodified forms. Auto-antibodies isolated from cancer patients also showed enhanced binding with HOCl-modified AT in comparison to native counterpart. Compared to normal AT, structurally and functionally altered conformation of HOCl-modified AT showed increased immunogenic sensitivity. HOCl modified AT can contribute to prothrombotic and angiogenic environment during cancer progression/development.
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Affiliation(s)
- Parvez Ahmad
- Protein Conformation and Enzymology Lab, Department of Biosciences, Jamia Millia Islamia (A Central University), New Delhi, 110025, India.
| | - Irfan Qadir Tantry
- Department of Biochemistry, Faculty of Medicine, Aligarh Muslim University, Aligarh, 202002, India.
| | - Asif Ali
- Department of Biochemistry, Faculty of Medicine, Aligarh Muslim University, Aligarh, 202002, India.
| | - Shahid Ali Siddiqui
- Department of Radiotherapy, Faculty of Medicine, Aligarh Muslim University, Aligarh, 202002, India.
| | - Sayeed Ur Rehman
- Department of Biochemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, 110062, India.
| | - Sana Waris
- Department of Biochemistry, Faculty of Medicine, Aligarh Muslim University, Aligarh, 202002, India.
| | - Mohamad Aman Jairajpuri
- Protein Conformation and Enzymology Lab, Department of Biosciences, Jamia Millia Islamia (A Central University), New Delhi, 110025, India.
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Sato H, Kaneko Y, Yamada K, Ristroph KD, Lu HD, Seto Y, Chan HK, Prud’homme RK, Onoue S. Polymeric Nanocarriers With Mucus-Diffusive and Mucus-Adhesive Properties to Control Pharmacokinetic Behavior of Orally Dosed Cyclosporine A. J Pharm Sci 2020; 109:1079-1085. [DOI: 10.1016/j.xphs.2019.10.043] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 10/19/2019] [Accepted: 10/21/2019] [Indexed: 12/12/2022]
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Quzhou Fructus Aurantii Extract suppresses inflammation via regulation of MAPK, NF-κB, and AMPK signaling pathway. Sci Rep 2020; 10:1593. [PMID: 32005962 PMCID: PMC6994495 DOI: 10.1038/s41598-020-58566-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 01/15/2020] [Indexed: 01/11/2023] Open
Abstract
The anti-inflammatory activity of Quzhou Fructus Aurantii Extract (QFAE) has been reported recently. Thus, present study aims to explore the mechanism of anti-inflammation of QFAE in vitro and in vivo to develop a lung phylactic agent. The anti-inflammatory mechanism of QFAE in RAW 264.7 cells and acute lung injury (ALI) mice model was determined by cytokines analysis, histopathological examination, Western blot assay, immunofluorescence, and immunohistochemistry analysis. The results showed that QFAE restrained mitogen-activated protein kinase (MAPK) and nuclear factor-kappa B (NF-κB) signaling pathways in LPS-induced RAW 264.7 cells, whereas AMP-activated protein kinase (AMPK) signaling pathways were activated, as revealed by prominent attenuation of phosphorylation of ERK, JNK, p38, p65, IκBα, RSK and MSK, and overt enhancement of phosphorylation of ACC and AMPKα. The levels of pro-inflammatory cytokines TNF, IL-6, and IL-1β were suppressed, whereas the level of anti-inflammatory cytokine IL-10 increased after pretreatment with QFAE in vivo and in vitro. Moreover, QFAE prevented mice from LPS-provoked ALI, bases on alleviating neutrophils, and macrophages in bronchoalveolar lavage fluid (BALF) and mitigatingpulmonary histological alters, as well as hematological change. The MAPK and NF-κB signaling pathways in LPS-stimulated ALI mice were dampened by QFAE pretreatment, whereas AMPK signaling pathways were accelerated, as testify by significant restraint of phosphorylation of ERK, JNK, p38, p65, and IκBα, and distinct elevation of phosphorylation of ACC and AMPKα. The remarkable anti-inflammatory effect of QFAE is associated with the suppression of MAPK and NF-κB signaling pathways and the initiation of AMPK signaling pathway.
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1-O-alkyl glycerophosphate-induced CD36 expression drives oxidative stress in microglial cells. Cell Signal 2020; 65:109459. [DOI: 10.1016/j.cellsig.2019.109459] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 10/22/2019] [Accepted: 10/24/2019] [Indexed: 11/17/2022]
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Araújo CLA, Salles BCC, Duarte SMDS, Rodrigues MR, Paula FBDA. Passion fruit (Passiflora edulis) leaf extract modulates the oxidative metabolism of rat peritoneal neutrophils in a model of inflammation. BRAZ J PHARM SCI 2020. [DOI: 10.1590/s2175-97902020000117362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
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Mohamed R, Cao Y, Afroz R, Xu S, Ta HT, Barras M, Zheng W, Little PJ, Kamato D. ROS directly activates transforming growth factor β type 1 receptor signalling in human vascular smooth muscle cells. Biochim Biophys Acta Gen Subj 2020; 1864:129463. [DOI: 10.1016/j.bbagen.2019.129463] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 09/25/2019] [Accepted: 10/07/2019] [Indexed: 12/11/2022]
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Kleniewska P, Pawliczak R. The influence of apocynin, lipoic acid and probiotics on antioxidant enzyme levels in the pulmonary tissues of obese asthmatic mice. Life Sci 2019; 234:116780. [PMID: 31430453 DOI: 10.1016/j.lfs.2019.116780] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 08/07/2019] [Accepted: 08/16/2019] [Indexed: 12/25/2022]
Abstract
Bronchial asthma and obesity are common health problems. Obesity is already responsible for 300,000 deaths per year. AIMS The aim of the present study was to assess whether apocynin, alpha lipoic acid and probiotic administration in combination with low-fat diet supplementation influences the levels of antioxidant enzymes in the pulmonary tissues of obese asthmatic mice. MAIN METHODS The study was performed on male C57/BL6 mice divided into 10 groups: (I) control; (II) asthma; (III) obesity; (IV) asthma + obesity; (V) asthma + obesity + apocynin p.o. 15 mg/kg/day for 12 weeks; (VI) asthma + obesity + low-fat diet for 12 weeks; (VII) asthma + obesity + low-fat diet for 12 weeks with apocynin p.o. 15 mg/kg/day; (VIII) asthma + obesity + low-fat diet with probiotics for 12 weeks; (IX) asthma + obesity + low-fat diet for 12 weeks with lipoic acid p.o. 100 mg/kg/day for 12 weeks; (X) asthma + obesity + standard diet with probiotics for 12 weeks. Superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) and glutathione reductase (GR) activity were examined. The administration of apocynin alone and apocynin in combination with a low-fat diet resulted in a significant increase in SOD values (respectively p < 0.001; p = 0.010). Application of probiotics resulted in a decrease in CAT activity (p = 0.037) and an increase in GPx activity (p < 0.001) compared to obese asthmatic mice. The administration of lipoic acid resulted in an increase in GR activity (p = 0.024 vs. control). KEY FINDINGS Supplementation containing apocynin, lipoic acid and probiotics has a positive influence on the antioxidant capacity of the pulmonary tissues of obese asthmatic mice. SIGNIFICANCE These results may contribute to the development of new therapeutic approaches.
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Affiliation(s)
- Paulina Kleniewska
- Department of Immunopathology, Faculty of Biomedical Sciences and Postgraduate Training, Medical University of Lodz, ul. Zeligowskiego 7/9, 90-752 Lodz, Poland.
| | - Rafał Pawliczak
- Department of Immunopathology, Faculty of Biomedical Sciences and Postgraduate Training, Medical University of Lodz, ul. Zeligowskiego 7/9, 90-752 Lodz, Poland
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Akinrinde AS, Adebiyi OE, Asekun A. Amelioration of Aflatoxin B1-induced gastrointestinal injuries by Eucalyptus oil in rats. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2019; 17:/j/jcim.ahead-of-print/jcim-2019-0002/jcim-2019-0002.xml. [PMID: 31421041 DOI: 10.1515/jcim-2019-0002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Accepted: 03/04/2019] [Indexed: 11/15/2022]
Abstract
Background Eucalyptus oil (EO), derived from Eucalyptus species, possesses vast remedial and healing properties, although its gut health-promoting properties have not been well investigated. In this study, we investigated the chemical composition of a commercial EO formulation and its potential role in protecting against aflatoxin B1 (AfB1)-induced gastrointestinal damage in rats. Methods Male Wistar rats were divided into six groups with eight rats each. Control rats were administered with the vehicle (1% Tween 80) for 14 days, while another group was exposed to two oral doses of AFB1 on days 12 and 14. Two other groups were pre-treated with oral doses of EO (50 and 100 mg/kg b.w.) for 14 consecutive days, along with two oral doses of AfB1 (5 mg/kg b.w.) on days 12 and 14. The remaining two groups were treated with EO alone at the two doses for 14 days. At the end of the experiment, blood samples, stomach and intestinal tissues were collected for measurement of oxidative stress and antioxidant parameters and light microscopic examination. Results Gas chromatography-mass spectrometry analysis revealed Eucalyptol (1, 8-cineole) as the main constituent (67.48%) of the oil. AfB1 administration induced oxidative and inflammatory disturbances, indicated by significantly (p<0.05) increased serum nitric oxide level and myeloperoxidase activity; increased tissue contents of hydrogen peroxide, malondialdehyde and protein carbonyls, accompanied with corresponding histological alterations. AfB1 also induced significant (p<0.05) reductions in glutathione peroxidase and superoxide dismutase (SOD) activities. Treatment with EO produced significant improvements in the biochemical parameters as well as the appearance of the gastric and intestinal mucosa. EO alone, at the two doses tested did not produce any significant changes in the parameters investigated. Conclusion The findings from this study showed that EO demonstrated protective activity against Aflatoxin-induced toxicity in stomach and intestinal tissues and may thus find application in treatment of gastrointestinal disorders.
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Affiliation(s)
- A S Akinrinde
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - O E Adebiyi
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - A Asekun
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
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Zeindler J, Angehrn F, Droeser R, Däster S, Piscuoglio S, Ng CKY, Kilic E, Mechera R, Meili S, Isaak A, Weber WP, Muenst S, Soysal SD. Infiltration by myeloperoxidase-positive neutrophils is an independent prognostic factor in breast cancer. Breast Cancer Res Treat 2019; 177:581-589. [PMID: 31267330 DOI: 10.1007/s10549-019-05336-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 06/22/2019] [Indexed: 12/13/2022]
Abstract
PURPOSE Myeloperoxidase (MPO) is an enzyme secreted by neutrophil granulocytes as a result of phagocytosis during inflammation. In colorectal cancer, tumour infiltration by MPO expressing cells has been shown to be independently associated with a favourable prognosis. In this study, we explored the role of MPO-positive cell infiltration and its prognostic significance in invasive breast cancer. METHODS We performed immunohistochemical staining for MPO on multiple tissue microarrays comprising a total of 928 human breast cancer samples with detailed clinical-pathological annotation and outcome data. RESULTS MPO-positive cell infiltration (≥ 5 cells/tissue punch) was found in 150 (16%) of the 928 evaluable breast cancer cases. In univariate survival analyses, infiltration by MPO-positive cells was associated with a significantly better overall survival (p < 0.001). In subset univariate analyses, the infiltration by MPO-positive cells was associated with significantly better overall survival in the Luminal B/HER2-negative subtype (p = 0.005), the HER2 enriched subtype (p = 0.011), and the Triple Negative subtype (p < 0.001). In multivariate analysis, MPO expression proved to be an independent prognostic factor for improved overall survival (p < 0.001). CONCLUSIONS This is the first study to show that infiltration of MPO-positive cells is an independent prognostic biomarker for improved overall survival in human breast cancer.
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Affiliation(s)
- Jasmin Zeindler
- Breast Cancer Center, University Hospital Basel and University of Basel, 4031, Basel, Switzerland
| | - Fiorenzo Angehrn
- Department of Surgery, Clarunis University Center for Gastrointestinal and Liver Diseases Basel, Basel, Switzerland
| | - Raoul Droeser
- Department of Surgery, Clarunis University Center for Gastrointestinal and Liver Diseases Basel, Basel, Switzerland
| | - Silvio Däster
- Department of Surgery, Clarunis University Center for Gastrointestinal and Liver Diseases Basel, Basel, Switzerland
| | - Salvatore Piscuoglio
- Visceral Surgery Research Laboratory, Clarunis, Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Charlotte K Y Ng
- Institute of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
| | - Ergin Kilic
- Institute of Pathology, Hospital Leverkusen, Leverkusen, Germany
| | - Robert Mechera
- Department of Surgery, Clarunis University Center for Gastrointestinal and Liver Diseases Basel, Basel, Switzerland
| | - Samuel Meili
- Department of Surgery, Clarunis University Center for Gastrointestinal and Liver Diseases Basel, Basel, Switzerland
| | - Andrej Isaak
- Department of Vascular and Endovascular Surgery, University Hospital Basel, Basel, Switzerland
| | - Walter P Weber
- Breast Cancer Center, University Hospital Basel and University of Basel, 4031, Basel, Switzerland
| | - Simone Muenst
- Institute of Medical Genetics and Pathology, University Hospital Basel, Basel, Switzerland
| | - Savas Deniz Soysal
- Department of Surgery, Clarunis University Center for Gastrointestinal and Liver Diseases Basel, Basel, Switzerland. .,Visceral Surgery Research Laboratory, Clarunis, Department of Biomedicine, University of Basel, Basel, Switzerland.
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Camacho-Alonso F, Tudela-Mulero MR, Peñarrocha-Oltra D, Peñarrocha-Diago M, Balaguer-Martí JC, Sánchez-Siles M. Salivary myeloperoxidase and malondialdehyde are increased in patients exhibiting an asymptomatic mandibular impacted third molar. Med Oral Patol Oral Cir Bucal 2019; 24:e537-e544. [PMID: 31232389 PMCID: PMC6667014 DOI: 10.4317/medoral.22962] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Accepted: 03/05/2019] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND To determine whether saliva is a good means of evaluating concentrations of oxidative stress biomarkers, analyzing the correlation between concentrations in saliva and in follicular tissue, and to compare biomarker concentrations in patients with one asymptomatic mandibular impacted third molar (MITM) (before extraction) with a healthy control, and to determine how biomarkers are modified by extraction. MATERIAL AND METHODS 80 patients with one asymptomatic MITM and 80 healthy controls were included. Saliva samples were collected from all subjects (before extraction in the study group) to evaluate Myeloperoxidase (MPO) and Malondialdehyde (MDA) concentrations. Follicular tissues were obtained during surgery to measure biomarkers. One month after extraction, saliva samples were collected to assess changes of oxidative stress. RESULTS Salivary MPO and MDA showed positive correlation with concentrations in follicular tissue (MPO: correlation coefficient=0.72, p=0.025; MDA: =0.92, p=0.001). Patients with asymptomatic MITMs showed higher salivary concentrations of oxidative stress biomarkers than healthy control subjects, with statistical significance for both MPO (p<0.001) and MDA (p<0.001). One month after extraction, salivary biomarkers decreased significantly in the study group (p<0.001). CONCLUSIONS Salivary MPO and MDA are higher among patients with one asymptomatic MITM, but these levels decrease significantly one month after surgical extraction. The large decrease in oxidative stress biomarkers could justify third molar extraction despite the absence of symptoms.
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Affiliation(s)
- F Camacho-Alonso
- Clínica Odontológica Universitaria, Unidad Docente de Cirugía Bucal, Hospital Morales Meseguer (2 planta), Avda. Marqués de los Vélez s/n, 30008 - Murcia, (Spain),
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Lippolis J, Powell E, Reinhardt T, Thacker T, Casas E. Symposium review: Omics in dairy and animal science—Promise, potential, and pitfalls. J Dairy Sci 2019; 102:4741-4754. [DOI: 10.3168/jds.2018-15267] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 08/06/2018] [Indexed: 01/08/2023]
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Peiminine Protects against Lipopolysaccharide-Induced Mastitis by Inhibiting the AKT/NF-κB, ERK1/2 and p38 Signaling Pathways. Int J Mol Sci 2018; 19:ijms19092637. [PMID: 30200569 PMCID: PMC6164606 DOI: 10.3390/ijms19092637] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 09/03/2018] [Accepted: 09/05/2018] [Indexed: 02/06/2023] Open
Abstract
Peiminine, an alkaloid extracted from Fritillaria plants, has been reported to have potent anti-inflammatory properties. However, the anti-inflammatory effect of peiminine on a mouse lipopolysaccharide (LPS)-induced mastitis model remains to be elucidated. The purpose of this experiment was to investigate the effect of peiminine on LPS-induced mastitis in mice. LPS was injected through the canals of the mammary gland to generate the mouse LPS-induced mastitis model. Peiminine was administered intraperitoneally 1 h before and 12 h after the LPS injection. In vitro, mouse mammary epithelial cells (mMECs) were pretreated with different concentrations of peiminine for 1 h and were then stimulated with LPS. The mechanism of peiminine on mastitis was studied by hematoxylin-eosin staining (H&E) staining, western blotting, and enzyme-linked immunosorbent assay (ELISA). The results showed that peiminine significantly decreased the histopathological impairment of the mammary gland in vivo and reduced the production of pro-inflammatory mediators in vivo and in vitro. Furthermore, peiminine inhibited the phosphorylation of the protein kinase B (AKT)/ nuclear factor-κB (NF-κB), extracellular regulated protein kinase (ERK1/2), and p38 signaling pathways both in vivo and in vitro. All the results suggested that peiminine exerted potent anti-inflammatory effects on LPS-induced mastitis in mice. Therefore, peiminine might be a potential therapeutic agent for mastitis.
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Role of Quzhou Fructus Aurantii Extract in Preventing and Treating Acute Lung Injury and Inflammation. Sci Rep 2018; 8:1698. [PMID: 29374248 PMCID: PMC5785969 DOI: 10.1038/s41598-018-20083-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 01/10/2018] [Indexed: 01/03/2023] Open
Abstract
Quzhou Fructus Aurantii (QFA) is an authentic herb of local varieties in Zhejiang, China, which is usually used to treat gastrointestinal illnesses, but its effects on respiratory inflammation have not been reported yet. In our study, the anti-inflammatory activity of QFA extract (QFAE) was evaluated on copper sulfate pentahydrate (CuSO4·5H2O)-induced transgenic neutrophil fluorescent zebrafish model. QFAE showed a significant effect of anti-inflammation in CuSO4·5H2O-induced zebrafish by reducing the neutrophil number in the inflammatory site. We investigated the anti-inflammatory activity of QFAE on lipopolysaccharide (LPS)-induced acute lung injury (ALI) mice models and RAW 264.7 cells. QFAE had an anti-inflammatory effect on reducing total cells, neutrophils, and macrophages in BALF and attenuated alveolus collapse, neutrophils infiltration, lung W/D ratio, myeloperoxidase (MPO) protein expression and other pulmonary histological changes in lung tissues, as well as hematological changes. Levels of pro-inflammatory cytokines, including TNF, IL-6, IFN-γ, MCP-1, and IL-12p70, were decreased, whereas anti-inflammatory cytokine IL-10 was increased after treatment with QFAE both in vivo and in vitro. In summary, our results suggested that QFAE had apparent anti-inflammatory effects on CuSO4·5H2O-induced zebrafish, LPS-induced ALI mice, and RAW 264.7 cells. Furthermore, QFAE may be a therapeutic drug to treat ALI/ARDS and other respiratory inflammations.
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Shih CC, Hwang HR, Chang CI, Su HM, Chen PC, Kuo HM, Li PJ, Wang HMD, Tsui KH, Lin YC, Huang SY, Wen ZH. Anti-Inflammatory and Antinociceptive Effects of Ethyl Acetate Fraction of an Edible Red Macroalgae Sarcodia ceylanica. Int J Mol Sci 2017; 18:ijms18112437. [PMID: 29149031 PMCID: PMC5713404 DOI: 10.3390/ijms18112437] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 10/26/2017] [Accepted: 11/13/2017] [Indexed: 02/06/2023] Open
Abstract
Research so far has only shown that edible red macroalgae, Sarcodia ceylanica has the ability to eliminate free radicals and anti-diabetic, anti-bacterial properties. This study was conducted both in vitro and in vivo on the ethyl acetate extract (PD1) of farmed red macroalgae in order to explore its anti-inflammatory properties. In order to study the in vitro anti-inflammatory effects of PD1, we used lipopolysaccharide (LPS) to induce inflammatory responses in murine macrophages. For evaluating the potential in vivo anti-inflammatory and antinociceptive effects of PD1, we used carrageenan-induced rat paw edema to produce inflammatory pain. The in vitro results indicated that PD1 inhibited the LPS-induced pro-inflammatory protein, inducible nitric oxide synthase (iNOS) in macrophages. Oral PD1 can reduce carrageenan-induced paw edema and inflammatory nociception. PD1 can significantly inhibit carrageenan-induced leukocyte infiltration, as well as the protein expression of inflammatory mediators (iNOS, interleukin-1β, and myeloperoxidase) in inflammatory tissue. The above results indicated that PD1 has great potential to be turned into a functional food or used in the development of new anti-inflammatory and antinociceptive agents. The results from this study are expected to help scientists in the continued development of Sarcodia ceylanica for other biomedical applications.
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Affiliation(s)
- Chieh-Chih Shih
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan.
- Department of Marketing and Distribution Management, Fortune Institute of Technology, Kaohsiung 83158, Taiwan.
| | - Hwong-Ru Hwang
- Division of Cardiology, Department of Internal Medicine, Pingtung Christian Hospital, Pingtung 90059, Taiwan.
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung 81362, Taiwan.
| | - Chi-I Chang
- Department of Biological Science and Technology, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan.
| | - Huei-Meei Su
- Tungkang Biotechnology Research Center, Fisheries Research Institute, Council of Agriculture, Pingtung 92845, Taiwan.
| | - Pei-Chin Chen
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University and Academia Sinica, Kaohsiung 80424, Taiwan.
| | - Hsiao-Mei Kuo
- Center for Neuroscience, National Sun Yat-sen University, Kaohsiung 80424, Taiwan.
| | - Pei-Jyuan Li
- Marine Biomedical Laboratory and Center for Translational Biopharmaceuticals, Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan.
| | - Hui-Min David Wang
- Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung 40227, Taiwan.
- College of Oceanology and Food Science, Quanzhou Normal University, Quanzhou 362000, China.
| | - Kuan-Hao Tsui
- Department of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital, Kaohsiung 81362, Taiwan.
- Department of Obstetrics and Gynecology and Institute of Clinical Medicine, National Yang-Ming University, Taipei 11221, Taiwan.
- Department of Pharmacy and Graduate Institute of Pharmaceutical Technology, Tajen University, Pingtung 90741, Taiwan.
| | - Yu-Chi Lin
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei 112, Taiwan.
| | - Shi-Ying Huang
- College of Oceanology and Food Science, Quanzhou Normal University, Quanzhou 362000, China.
- Fujian Province Key Laboratory for the Development of Bioactive Material from Marine Algae, Quanzhou 362000, China.
- Key Laboratory of Inshore Resources Biotechnology (Quanzhou Normal University), Fujian Province University, Quanzhou 362000, China.
| | - Zhi-Hong Wen
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University and Academia Sinica, Kaohsiung 80424, Taiwan.
- Marine Biomedical Laboratory and Center for Translational Biopharmaceuticals, Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan.
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Pinniger GJ, Terrill JR, Assan EB, Grounds MD, Arthur PG. Pre-clinical evaluation of N-acetylcysteine reveals side effects in the mdx mouse model of Duchenne muscular dystrophy. J Physiol 2017; 595:7093-7107. [PMID: 28887840 DOI: 10.1113/jp274229] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 08/30/2017] [Indexed: 11/08/2022] Open
Abstract
KEY POINTS Duchenne muscular dystrophy (DMD) is a fatal muscle wasting disease associated with increased inflammation and oxidative stress. The antioxidant N-acetylcysteine (NAC) has been proposed as a therapeutic intervention for DMD boys, but potential adverse effects of NAC have not been widely investigated. We used young (6 weeks old) growing mdx mice to investigate the capacity of NAC supplementation (2% in drinking water for 6 weeks) to improve dystrophic muscle function and to explore broader systemic effects of NAC treatment. NAC treatment improved normalised measures of muscle function, and decreased inflammation and oxidative stress, but significantly reduced body weight gain, muscle weight and liver weight. Unexpected significant adverse effects of NAC on body and muscle weights indicate that interpretation of muscle function based on normalised force measures should be made with caution and careful consideration is needed when proposing the use of NAC as a therapeutic treatment for young DMD boys. ABSTRACT Duchenne muscular dystrophy (DMD) is a fatal X-linked muscle wasting disease characterised by severe muscle weakness, necrosis, inflammation and oxidative stress. The antioxidant N-acetylcysteine (NAC) has been proposed as a potential therapeutic intervention for DMD boys. We investigated the capacity of NAC to improve dystrophic muscle function in the mdx mouse model of DMD. Young (6 weeks old) mdx and non-dystrophic C57 mice receiving 2% NAC in drinking water for 6 weeks were compared with untreated mice. Grip strength and body weight were measured weekly, before the 12 week old mice were anaesthetised and extensor digitorum longus (EDL) muscles were excised for functional analysis and tissues were sampled for biochemical analyses. Compared to untreated mice, the mean (SD) normalised grip strength was significantly greater in NAC-treated mdx [3.13 (0.58) vs 4.87 (0.78) g body weight (bw)-1 ; P < 0.001] and C57 mice [3.90 (0.32) vs 5.32 (0.60) g bw-1 ; P < 0.001]. Maximum specific force was significantly greater in NAC-treated mdx muscles [9.80 (2.27) vs 13.07 (3.37) N cm-2 ; P = 0.038]. Increased force in mdx mice was associated with reduced thiol oxidation and inflammation in fast muscles, and increased citrate synthase activity in slow muscle. Importantly, NAC significantly impaired body weight gain in both strains of young growing mice, and reduced liver weight in C57 mice and muscle weight in mdx mice. These potentially adverse effects of NAC emphasise the need for caution when interpreting improvements in muscle function based on normalised force measures, and that careful consideration be given to these effects when proposing NAC as a potential treatment for young DMD boys.
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Affiliation(s)
- Gavin J Pinniger
- School of Human Sciences, the University of Western Australia, Crawley, Western Australia, Australia
| | - Jessica R Terrill
- School of Human Sciences, the University of Western Australia, Crawley, Western Australia, Australia.,School of Molecular Sciences, the University of Western Australia, Perth, Western Australia, Australia
| | - Evanna B Assan
- School of Human Sciences, the University of Western Australia, Crawley, Western Australia, Australia
| | - Miranda D Grounds
- School of Human Sciences, the University of Western Australia, Crawley, Western Australia, Australia
| | - Peter G Arthur
- School of Molecular Sciences, the University of Western Australia, Perth, Western Australia, Australia
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