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Subclinical Hypothyroidism in Families Due to Chronic Consumption of Nitrate-Contaminated Water in Rural Areas with Intensive Livestock and Agricultural Practices in Durango, Mexico. WATER 2022. [DOI: 10.3390/w14030282] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Nitrate is a widely disseminated water pollutant and has been linked to health disorders, including hypothyroidism. Here, we evaluated the relationship between thyroid function and chronic exposure to nitrates in rural zone families, in addition to the genetic and autoimmune factors. Exposure and effect biomarkers, thyroid hormones, and autoantibodies of tiroperoxidase were measured, as well the presence of two FOXE1 polymorphisms (rs965513, rs1867277). Pearson’s correlation, principal component analysis, Kruskal–Wallis, and chi-squared tests were used for statistical analysis. A total of 102 individuals were analyzed; 45% presented subclinical hypothyroidism, a negative correlation was observed between methemoglobin and the total T3 (r = −0.43, p = 0.001) and free T3 levels (r = −0.34, p = 0.001), as well as between TSH and the free T4 (r = −0.41, p = 0.0001) and total T4 (r = −0.36, p = 0.0001). A total of 15.7% had positive antithyroid ab-TPO, while the polymorphic genotype (AA) represented only 3% (rs965513) and 4% (rs1867277) among subjects with subclinical hypothyroidism. The high frequency of subclinical hypothyroidism in the population under study could be related, mainly, to chronic exposure through the consumption of nitrate-contaminated water.
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2
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Montes P, Guerra-Librero A, García P, Cornejo-Calvo ME, López MDS, de Haro T, Martínez-Ruiz L, Escames G, Acuña-Castroviejo D. Effect of 5-Azacitidine Treatment on Redox Status and Inflammatory Condition in MDS Patients. Antioxidants (Basel) 2022; 11:antiox11010139. [PMID: 35052643 PMCID: PMC8773071 DOI: 10.3390/antiox11010139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 12/26/2021] [Accepted: 01/06/2022] [Indexed: 01/27/2023] Open
Abstract
This study focused on the impact of the treatment with the hypomethylating agent 5-azacitidine on the redox status and inflammation in 24 MDS patients. Clinical and genetic features of MDS patients were recorded, and peripheral blood samples were used to determine the activity of the endogenous antioxidant defense system (superoxide dismutase, SOD; catalase, CAT; glutathion peroxidase, GPx; and reductase, GRd, activities), markers of oxidative damage (lipid peroxidation, LPO, and advanced oxidation protein products, AOPP). Moreover, pro-inflammatory cytokines and plasma nitrite plus nitrate levels as markers of inflammation, as well as CoQ10 plasma levels, were also measured. Globally, MDS patients showed less redox status in terms of a reduction in the GSSG/GSH ratio and in the LPO levels, as well as increased CAT activity compared with healthy subjects, with no changes in SOD, GPx, and GRd activities, or AOPP levels. When analyzing the evolution from early to advanced stages of the disease, we found that the GPx activity, GSSG/GSH ratio, LPO, and AOPP increased, with a reduction in CAT. GPx changes were related to the presence of risk factors such as high-risk IPSS-R or mutational score. Moreover, there was an increase in IL-2, IL-6, IL-8, and TNF-α plasma levels, with a further increase of IL-2 and IL-10 from early to advanced stages of the disease. However, we did not observe any association between inflammation and oxidative stress. Finally, 5-azacitidine treatment generated oxidative stress in MDS patients, without affecting inflammation levels, suggesting that oxidative status and inflammation are two independent processes.
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Affiliation(s)
- Paola Montes
- Centro de Investigación Biomédica, Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016 Granada, Spain; (P.M.); (A.G.-L.); (L.M.-R.); (G.E.)
- UGC de Laboratorios Clínicos, Hospital Universitario Clínico San Cecilio, 18016 Granada, Spain; (M.d.S.L.); (T.d.H.)
| | - Ana Guerra-Librero
- Centro de Investigación Biomédica, Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016 Granada, Spain; (P.M.); (A.G.-L.); (L.M.-R.); (G.E.)
- CIBERfes, Ibs.Granada, 18016 Granada, Spain
| | - Paloma García
- UGC de Hematología y Hemoterapia, Hospital Universitario Clínico San Cecilio, 18016 Granada, Spain; (P.G.); (M.E.C.-C.)
| | - María Elena Cornejo-Calvo
- UGC de Hematología y Hemoterapia, Hospital Universitario Clínico San Cecilio, 18016 Granada, Spain; (P.G.); (M.E.C.-C.)
| | - María del Señor López
- UGC de Laboratorios Clínicos, Hospital Universitario Clínico San Cecilio, 18016 Granada, Spain; (M.d.S.L.); (T.d.H.)
| | - Tomás de Haro
- UGC de Laboratorios Clínicos, Hospital Universitario Clínico San Cecilio, 18016 Granada, Spain; (M.d.S.L.); (T.d.H.)
| | - Laura Martínez-Ruiz
- Centro de Investigación Biomédica, Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016 Granada, Spain; (P.M.); (A.G.-L.); (L.M.-R.); (G.E.)
| | - Germaine Escames
- Centro de Investigación Biomédica, Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016 Granada, Spain; (P.M.); (A.G.-L.); (L.M.-R.); (G.E.)
- CIBERfes, Ibs.Granada, 18016 Granada, Spain
| | - Darío Acuña-Castroviejo
- Centro de Investigación Biomédica, Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016 Granada, Spain; (P.M.); (A.G.-L.); (L.M.-R.); (G.E.)
- UGC de Laboratorios Clínicos, Hospital Universitario Clínico San Cecilio, 18016 Granada, Spain; (M.d.S.L.); (T.d.H.)
- CIBERfes, Ibs.Granada, 18016 Granada, Spain
- Correspondence: ; Tel.: +34-958-241-000 (ext. 20196)
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Iron overload-induced oxidative stress in myelodysplastic syndromes and its cellular sequelae. Crit Rev Oncol Hematol 2021; 163:103367. [PMID: 34058341 DOI: 10.1016/j.critrevonc.2021.103367] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 03/30/2021] [Accepted: 05/03/2021] [Indexed: 12/14/2022] Open
Abstract
The myelodysplastic syndromes (MDS) are clonal hematopoietic stem cell disorders. MDS patients often require red blood cell transfusions, resulting in iron overload (IOL). IOL increases production of reactive oxygen species (ROS), oxygen free radicals. We review and illustrate how IOL-induced ROS influence cellular activities relevant to MDS pathophysiology. ROS damage lipids, nucleic acids in mitochondrial and nuclear DNA, structural proteins, transcription factors and enzymes. Cellular consequences include decreased metabolism and tissue and organ dysfunction. In hematopoietic stem cells (HSC), consequences of ROS include decreased glycolysis, shifting the cell from anaerobic to aerobic metabolism and causing HSC to exit the quiescent state, leading to HSC exhaustion or senescence. ROS oxidizes DNA bases, resulting in accumulation of mutations. Membrane oxidation alters fluidity and permeability. In summary, evidence indicates that IOL-induced ROS alters cellular signaling pathways resulting in toxicity to organs and hematopoietic cells, in keeping with adverse clinical outcomes in MDS.
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4
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Rodríguez-García A, García-Vicente R, Morales ML, Ortiz-Ruiz A, Martínez-López J, Linares M. Protein Carbonylation and Lipid Peroxidation in Hematological Malignancies. Antioxidants (Basel) 2020; 9:E1212. [PMID: 33271863 PMCID: PMC7761105 DOI: 10.3390/antiox9121212] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/20/2020] [Accepted: 11/28/2020] [Indexed: 02/07/2023] Open
Abstract
Among the different mechanisms involved in oxidative stress, protein carbonylation and lipid peroxidation are both important modifications associated with the pathogenesis of several diseases, including cancer. Hematopoietic cells are particularly vulnerable to oxidative damage, as the excessive production of reactive oxygen species and associated lipid peroxidation suppress self-renewal and induce DNA damage and genomic instability, which can trigger malignancy. A richer understanding of the clinical effects of oxidative stress might improve the prognosis of these diseases and inform therapeutic strategies. The most common protein carbonylation and lipid peroxidation compounds, including hydroxynonenal, malondialdehyde, and advanced oxidation protein products, have been investigated for their potential effect on hematopoietic cells in several studies. In this review, we focus on the most important protein carbonylation and lipid peroxidation biomarkers in hematological malignancies, their role in disease development, and potential treatment implications.
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Affiliation(s)
- Alba Rodríguez-García
- Department of Translational Hematology, Instituto de Investigación Hospital 12 de Octubre (i+12), Hematological Malignancies Clinical Research Unit H120-CNIO, CIBERONC, ES 28041 Madrid, Spain; (A.R.-G.); (R.G.-V.); (M.L.M.); (A.O.-R.); (J.M.-L.)
| | - Roberto García-Vicente
- Department of Translational Hematology, Instituto de Investigación Hospital 12 de Octubre (i+12), Hematological Malignancies Clinical Research Unit H120-CNIO, CIBERONC, ES 28041 Madrid, Spain; (A.R.-G.); (R.G.-V.); (M.L.M.); (A.O.-R.); (J.M.-L.)
| | - María Luz Morales
- Department of Translational Hematology, Instituto de Investigación Hospital 12 de Octubre (i+12), Hematological Malignancies Clinical Research Unit H120-CNIO, CIBERONC, ES 28041 Madrid, Spain; (A.R.-G.); (R.G.-V.); (M.L.M.); (A.O.-R.); (J.M.-L.)
| | - Alejandra Ortiz-Ruiz
- Department of Translational Hematology, Instituto de Investigación Hospital 12 de Octubre (i+12), Hematological Malignancies Clinical Research Unit H120-CNIO, CIBERONC, ES 28041 Madrid, Spain; (A.R.-G.); (R.G.-V.); (M.L.M.); (A.O.-R.); (J.M.-L.)
| | - Joaquín Martínez-López
- Department of Translational Hematology, Instituto de Investigación Hospital 12 de Octubre (i+12), Hematological Malignancies Clinical Research Unit H120-CNIO, CIBERONC, ES 28041 Madrid, Spain; (A.R.-G.); (R.G.-V.); (M.L.M.); (A.O.-R.); (J.M.-L.)
- Department of Medicine, Medicine School, Universidad Complutense de Madrid, ES 28040 Madrid, Spain
| | - María Linares
- Department of Translational Hematology, Instituto de Investigación Hospital 12 de Octubre (i+12), Hematological Malignancies Clinical Research Unit H120-CNIO, CIBERONC, ES 28041 Madrid, Spain; (A.R.-G.); (R.G.-V.); (M.L.M.); (A.O.-R.); (J.M.-L.)
- Department of Biochemistry and Molecular Biology, Pharmacy School, Universidad Complutense de Madrid, ES 28040 Madrid, Spain
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5
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Kerimi A, Kraut NU, da Encarnacao JA, Williamson G. The gut microbiome drives inter- and intra-individual differences in metabolism of bioactive small molecules. Sci Rep 2020; 10:19590. [PMID: 33177581 PMCID: PMC7658971 DOI: 10.1038/s41598-020-76558-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 10/29/2020] [Indexed: 02/08/2023] Open
Abstract
The origin of inter-individual variability in the action of bioactive small molecules from the diet is poorly understood and poses a substantial obstacle to harnessing their potential for attenuating disease risk. Epidemiological studies show that coffee lowers the risk of developing type 2 diabetes, independently of caffeine, but since coffee is a complex matrix, consumption gives rise to different classes of metabolites in vivo which in turn can affect multiple related pathways in disease development. We quantified key urinary coffee phenolic acid metabolites repeated three times in 36 volunteers, and observed the highest inter- and intra-individual variation for metabolites produced by the colonic microbiome. Notably, a urinary phenolic metabolite not requiring the action of the microbiota was positively correlated with fasting plasma insulin. These data highlight the role of the gut microbiota as the main driver of both intra- and inter-individual variation in metabolism of dietary bioactive small molecules.
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Affiliation(s)
- Asimina Kerimi
- Department of Nutrition, Dietetics and Food, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Notting Hill BASE Facility, 264 Ferntree Gully Road, Notting Hill, VIC, 3168, Australia
- School of Food Science and Nutrition, University of Leeds, Leeds, LS2 9JT, UK
| | - Nicolai U Kraut
- School of Food Science and Nutrition, University of Leeds, Leeds, LS2 9JT, UK
| | | | - Gary Williamson
- Department of Nutrition, Dietetics and Food, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Notting Hill BASE Facility, 264 Ferntree Gully Road, Notting Hill, VIC, 3168, Australia.
- School of Food Science and Nutrition, University of Leeds, Leeds, LS2 9JT, UK.
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6
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Hoeks M, Bagguley T, van Marrewijk C, Smith A, Bowen D, Culligan D, Kolade S, Symeonidis A, Garelius H, Spanoudakis M, Langemeijer S, Roelofs R, Wiegerinck E, Tatic A, Killick S, Panagiotidis P, Stanca O, Hellström-Lindberg E, Cermak J, van der Klauw M, Wouters H, van Kraaij M, Blijlevens N, Swinkels DW, de Witte T. Toxic iron species in lower-risk myelodysplastic syndrome patients: course of disease and effects on outcome. Leukemia 2020; 35:1745-1750. [PMID: 32948844 PMCID: PMC8179850 DOI: 10.1038/s41375-020-01022-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/03/2020] [Accepted: 08/06/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Marlijn Hoeks
- Centre for Clinical Transfusion Research, Sanquin Research, Leiden, The Netherlands. .,Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands. .,Department of Hematology, Radboud University Medical Center, Nijmegen, The Netherlands.
| | - Tim Bagguley
- Epidemiology and Cancer Statistics Group, University of York, York, UK
| | - Corine van Marrewijk
- Department of Hematology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Alex Smith
- Epidemiology and Cancer Statistics Group, University of York, York, UK
| | - David Bowen
- St. James's Institute of Oncology, Leeds Teaching Hospitals, Leeds, UK
| | - Dominic Culligan
- Department of Hematology, Aberdeen Royal Infirmary, Aberdeen, UK
| | - Seye Kolade
- Department of Hematology, Blackpool Victoria Hospital, Blackpool, Lancashire, UK
| | - Argiris Symeonidis
- Department of Medicine, Division of Hematology, University of Patras Medical School, Patras, Greece
| | - Hege Garelius
- Department of Medicine, Sect. of Hematology and Coagulation, Sahlgrenska University Hospital, Göteborg, Sweden
| | - Michail Spanoudakis
- Department of Hematology, Airedale NHS Trust, Airdale, UK.,Department of Haematology, Warrington and Halton Teaching Hospitals NHS foundation Trust, Cheshire, UK
| | - Saskia Langemeijer
- Department of Hematology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Rian Roelofs
- Department of Laboratory Medicine, Hepcidinanalysis.com, and Radboudumc Expertise Center for Iron Disorders, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Erwin Wiegerinck
- Department of Laboratory Medicine, Hepcidinanalysis.com, and Radboudumc Expertise Center for Iron Disorders, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Aurelia Tatic
- Center of Hematology and Bone Marrow Transplantation, Fundeni Clinical Institute, Bucharest, Romania
| | - Sally Killick
- Department of Hematology, Royal Bournemouth Hospital, Bournemouth, UK
| | - Panagiotis Panagiotidis
- Department of Haematology, 1st Department of Propedeutic Internal Medicine, National and Kapodistrian University of Athens, Medical School, Laikon General Hospital, Athens, Greece
| | - Oana Stanca
- Department of Hematology, Coltea Clinical Hospital, Bucharest, Romania
| | - Eva Hellström-Lindberg
- Department of Medicine, Division of Hematology, Karolinska Institutet, Stockholm, Sweden
| | - Jaroslav Cermak
- Department of Clinical Hematology, Institute of Hematology and Blood Transfusion, Praha, Czech Republic
| | - Melanie van der Klauw
- Department of Endocrinology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Hanneke Wouters
- Department of Endocrinology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Marian van Kraaij
- Department of Hematology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Nicole Blijlevens
- Department of Hematology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Dorine W Swinkels
- Department of Laboratory Medicine, Hepcidinanalysis.com, and Radboudumc Expertise Center for Iron Disorders, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Theo de Witte
- Nijmegen Center for Molecular Life Sciences, Department of Tumor Immunology, Radboud University Medical Center, Nijmegen, The Netherlands
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7
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Fernando Y, Wickramasinghe P, De Silva U, Alahakoon M, Anuradha KWDA, Handunnetti S. Differences in serum markers of oxidative stress in well controlled and poorly controlled asthma in Sri Lankan children: a pilot study. Allergy Asthma Clin Immunol 2020; 16:66. [PMID: 32944026 PMCID: PMC7491346 DOI: 10.1186/s13223-020-00463-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 07/10/2020] [Indexed: 12/22/2022] Open
Abstract
Background Asthma is a disease characterised by hyper responsiveness and bronchoconstriction of airways, and is a major health burden globally. A dysfunction of the oxidant-antioxidant balance, termed oxidative stress, has been implicated in the pathophysiology of asthma. The present study aims to assess the changes in oxidative stress markers, namely nitric oxide metabolites and antioxidant capacity, in children with poorly controlled and well controlled asthma, in comparison to healthy controls. Methods The present study enrolled 72 children (ages 5-15 years) classified into three groups: (1) poorly controlled asthma (n = 20), (2) well controlled asthma (n = 24) and (3) healthy controls (n = 27). An interviewer-administered questionnaire was used to record socio-demographic data of the participants. The serum concentrations of the oxidant markers (nitrite, nitrate and total nitric oxide metabolites [NOx]) were determined using the Griess test, and the total antioxidant capacity (TAOC) was determined using the ABTS decolorisation method. The concentrations of these markers were compared across the three groups. Results The three study groups were similar in terms of socio-demographic data. The differences across the three groups were statistically significant for serum concentrations of nitrate and NOx (but not nitrite) and serum TAOC. Further analyses showed that the disparity for nitrate and NOx concentrations was greatest between poorly controlled asthma and healthy controls (p = 0.001 and p < 0.001) compared to the well-controlled asthmatics and healthy controls (p = 0.036 and p = 0.049). A significant difference in serum nitrate and NOx concentrations was not observed between the two asthma groups (p = 0.311 and 0.203). The TAOC were significantly lower in poorly controlled asthmatics as compared to well-controlled asthmatics (p = 0.003) and healthy controls (p < 0.001). However, there was no significant difference in the serum TAOC between healthy controls and well-controlled asthmatics (p = 0.496). These findings may indicate that it is perhaps the higher TAOC that contributes to the well controlled state of asthma. Conclusions The present study indicated that an imbalance of oxidants and antioxidants in the serum may have an underlying role in asthma pathophysiology, and how these markers may be effective in asthma management.
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Affiliation(s)
- Yenuli Fernando
- Institute of Biochemistry, Molecular Biology and Biotechnology, University of Colombo, Colombo, Sri Lanka.,Colombo International School, Colombo, 7 Sri Lanka
| | - Pujitha Wickramasinghe
- Department of Paediatrics, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka
| | - Udani De Silva
- Institute of Biochemistry, Molecular Biology and Biotechnology, University of Colombo, Colombo, Sri Lanka
| | | | - K W D A Anuradha
- Department of Paediatrics, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka
| | - Shiroma Handunnetti
- Institute of Biochemistry, Molecular Biology and Biotechnology, University of Colombo, Colombo, Sri Lanka
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8
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Pastva O, Chrastinová L, Bocková M, Kotlín R, Suttnar J, Hlaváčková A, Štikarová J, Ceznerová E, Čermák J, Homola J, Dyr JE. Hsp70 Trap Assay for Detection of Misfolded Subproteome Related to Myelodysplastic Syndromes. Anal Chem 2019; 91:14226-14230. [DOI: 10.1021/acs.analchem.9b04175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ondřej Pastva
- Institute of Hematology and Blood Transfusion, U Nemocnice 1, 12820 Prague, Czech Republic
| | - Leona Chrastinová
- Institute of Hematology and Blood Transfusion, U Nemocnice 1, 12820 Prague, Czech Republic
| | - Markéta Bocková
- Institute of Photonics and Electronics, Academy of Sciences of the Czech Republic, Chaberská 57, 18251 Prague, Czech Republic
| | - Roman Kotlín
- Institute of Hematology and Blood Transfusion, U Nemocnice 1, 12820 Prague, Czech Republic
| | - Jiří Suttnar
- Institute of Hematology and Blood Transfusion, U Nemocnice 1, 12820 Prague, Czech Republic
| | - Alžběta Hlaváčková
- Institute of Hematology and Blood Transfusion, U Nemocnice 1, 12820 Prague, Czech Republic
| | - Jana Štikarová
- Institute of Hematology and Blood Transfusion, U Nemocnice 1, 12820 Prague, Czech Republic
| | - Eliška Ceznerová
- Institute of Hematology and Blood Transfusion, U Nemocnice 1, 12820 Prague, Czech Republic
| | - Jaroslav Čermák
- Institute of Hematology and Blood Transfusion, U Nemocnice 1, 12820 Prague, Czech Republic
| | - Jiří Homola
- Institute of Photonics and Electronics, Academy of Sciences of the Czech Republic, Chaberská 57, 18251 Prague, Czech Republic
| | - Jan E. Dyr
- Institute of Hematology and Blood Transfusion, U Nemocnice 1, 12820 Prague, Czech Republic
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9
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Leitch HA, Gattermann N. Hematologic improvement with iron chelation therapy in myelodysplastic syndromes: Clinical data, potential mechanisms, and outstanding questions. Crit Rev Oncol Hematol 2019; 141:54-72. [DOI: 10.1016/j.critrevonc.2019.06.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 11/25/2018] [Accepted: 06/03/2019] [Indexed: 12/25/2022] Open
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10
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Zhang Y, Zhao G, Cheng P, Yan X, Li Y, Cheng D, Wang R, Chen J, Shen W. Nitrite accumulation during storage of tomato fruit as prevented by hydrogen gas. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2019. [DOI: 10.1080/10942912.2019.1651737] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Yihua Zhang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
- Center of Hydrogen Science, Shanghai Jiao Tong University, Shanghai, China
| | - Gan Zhao
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Pengfei Cheng
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Xinyu Yan
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Ying Li
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Dan Cheng
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Ren Wang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Jun Chen
- Shennongjia Shi Zhen Water Structure Co., Ltd., Shennongjia, China
| | - Wenbiao Shen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
- Center of Hydrogen Science, Shanghai Jiao Tong University, Shanghai, China
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11
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Hoeks M, Yu G, Langemeijer S, Crouch S, de Swart L, Fenaux P, Symeonidis A, Čermák J, Hellström-Lindberg E, Sanz G, Stauder R, Holm MS, Mittelman M, Mądry K, Malcovati L, Tatic A, Almeida AM, Germing U, Savic A, Šimec NG, Culligan D, Itzykson R, Guerci-Bresler A, Slama B, Droste J, van Marrewijk C, van de Loosdrecht A, Blijlevens N, van Kraaij M, Bowen D, de Witte T, Smith A. Impact of treatment with iron chelation therapy in patients with lower-risk myelodysplastic syndromes participating in the European MDS registry. Haematologica 2019; 105:640-651. [PMID: 31278207 PMCID: PMC7049356 DOI: 10.3324/haematol.2018.212332] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 07/04/2019] [Indexed: 01/19/2023] Open
Abstract
Iron overload due to red blood cell (RBC) transfusions is associated with morbidity and mortality in lower-risk myelodysplastic syndrome (MDS) patients. Many studies have suggested improved survival after iron chelation therapy (ICT), but valid data are limited. The aim of this study was to assess the effect of ICT on overall survival and hematologic improvement in lower-risk MDS patients in the European MDS registry. We compared chelated patients with a contemporary, non-chelated control group within the European MDS registry, that met the eligibility criteria for starting iron chelation. A Cox proportional hazards model was used to assess overall survival (OS), treating receipt of chelation as a time-varying variable. Additionally, chelated and non-chelated patients were compared using a propensity-score matched model. Of 2,200 patients, 224 received iron chelation. The hazard ratio and 95% confidence interval for OS for chelated patients, adjusted for age, sex, comorbidity, performance status, cumulative RBC transfusions, Revised-International Prognostic Scoring System (IPSS-R), and presence of ringed sideroblasts was 0.50 (0.34-0.74). The propensity-score analysis, matched for age, sex, country, RBC transfusion intensity, ferritin level, comorbidity, performance status, and IPSS-R, and, in addition, corrected for cumulative RBC transfusions and presence of ringed sideroblasts, demonstrated a significantly improved OS for chelated patients with a hazard ratio of 0.42 (0.27-0.63) compared to non-chelated patients. Up to 39% of chelated patients reached an erythroid response. In conclusion, our results suggest that iron chelation may improve OS and hematopoiesis in transfused lower-risk MDS patients. This trial was registered at clinicaltrials.gov identifier: 00600860.
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Affiliation(s)
- Marlijn Hoeks
- Centre for Clinical Transfusion Research, Sanquin Research, Leiden, the Netherlands.,Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Ge Yu
- Epidemiology and Cancer Statistics Group, Department of Health Sciences, University of York, York, USA
| | - Saskia Langemeijer
- Department of Hematology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Simon Crouch
- Epidemiology and Cancer Statistics Group, Department of Health Sciences, University of York, York, USA
| | - Louise de Swart
- Department of Hematology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Pierre Fenaux
- Service d'Hématologie, Hôpital Saint-Louis, Assistance Publique des Hôpitaux de Paris and Université Paris 7, Paris, France
| | - Argiris Symeonidis
- Department of Medicine, Division of Hematology, University of Patras Medical School, Patras, Greece
| | - Jaroslav Čermák
- Department of Clinical Hematology, Institute of Hematology and Blood Transfusion, Praha, Czech Republic
| | - Eva Hellström-Lindberg
- Department of Medicine, Division of Hematology, Karolinska Institutet, Stockholm, Sweden
| | - Guillermo Sanz
- Department of Haematology, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Reinhard Stauder
- Department of Internal Medicine V (Haematology and Oncology), Innsbruck Medical University, Innsbruck, Austria
| | - Mette Skov Holm
- Department of Haematology, Aarhus University Hospital, Aarhus, Denmark
| | - Moshe Mittelman
- Department of Medicine A, Tel Aviv Sourasky (Ichilov) Medical Center and Sackler Medical Faculty, Tel Aviv University, Tel Aviv, Israel
| | - Krzysztof Mądry
- Department of Haematology, Oncology and Internal Medicine, Warszawa Medical University, Warszawa, Poland
| | - Luca Malcovati
- Department of Hematology Oncology, Fondazione Istituto Di Ricovero e Cura a Carettere Scientifico, Policlinico San Matteo, University of Pavia, Pavia, Italy
| | - Aurelia Tatic
- Center of Hematology and Bone Marrow Transplantation, Fundeni Clinical Institute, Bucharest, Romania
| | | | - Ulrich Germing
- Department of Haematology, Oncology and Clinical Immunology, Universitätsklinik Düsseldorf, Düsseldorf, Germany
| | - Aleksandar Savic
- Clinic of Hematology - Clinical Center of Vojvodina, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Njetočka Gredelj Šimec
- Department of Internal Medicine, Division of Hematology, Merkur University Hospital, Zagreb, Croatia
| | - Dominic Culligan
- Department of Haematology, Aberdeen Royal Infirmary, Aberdeen, UK
| | - Raphael Itzykson
- Service d'Hématologie, Hôpital Saint-Louis, Assistance Publique des Hôpitaux de Paris and Université Paris 7, Paris, France
| | - Agnes Guerci-Bresler
- Service d'Hématologie, Centre Hospitalier Universitaire Brabois Vandoeuvre, Nancy, France
| | - Borhane Slama
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Jackie Droste
- Department of Hematology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Corine van Marrewijk
- Department of Hematology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Arjan van de Loosdrecht
- Department of Hematology - Cancer Center Amsterdam VU University Medical Center, Amsterdam, the Netherlands
| | - Nicole Blijlevens
- Department of Hematology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Marian van Kraaij
- Unit Transfusion Medicine, Sanquin Blood Bank, Amsterdam, the Netherlands
| | - David Bowen
- St. James's Institute of Oncology, Leeds Teaching Hospitals, Leeds, UK
| | - Theo de Witte
- Department of Tumor Immunology - Nijmegen Center for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Alex Smith
- Epidemiology and Cancer Statistics Group, Department of Health Sciences, University of York, York, USA
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Tsamesidis I, Pantaleo A, Pekou A, Gusani A, Iliadis S, Makedou K, Manca A, Carruale A, Lymperaki E, Fozza C. Correlation of Oxidative Stress Biomarkers and Hematological Parameters in Blood Cancer Patients from Sardinia, Italy. Int J Hematol Oncol Stem Cell Res 2019; 13:49-57. [PMID: 31372197 PMCID: PMC6660479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background: Over the last few decades, there has been a dramatic increase in hematological malignancies (HMs) in the population of Sardinia. It is accepted that oxidative stress biomarkers have been demonstrated to be prognostically important in various neoplastic diseases. The aim of this study is to evaluate serum vitamin E, total antioxidant capacity (TAC), Malondialdehyde (MDA) and reactive oxygen species (ROS) levels in 80 Sardinian patients with different HMs [acute myeloid leukemia (AML)(n=20), myelodysplastic syndromes (MDS) (n=20), Hodgkin lymphoma (HL) (n=20) and non-Hodgkin lymphoma (NHL) (n=20)] on the day of their diagnosis. Materials and Methods: Samples from all participants were obtained after an overnight fast (at least 10 hours). This study was approved and conducted in accordance with Good Clinical Practice guidelines and the Declaration of Helsinki. Patients and controls provided written, informed consent before entering the study. All study participants' medical history and their medication were documented upon enrolling. Results: Lower levels of TAC and Vitamin E were observed in most of the studied groups compared to healthy controls (0.41-0.49 mmol/L vs. 0.56 mmol/L) (19.55-28.55 μmol/L vs. 34.51 μmol/L). Moreover, higher average MDA levels were observed in HL and NHL patients compared to healthy controls (16.6 ng/ml-17.8 ng/ml vs. 7.4 ng/ml). Additionally, the ROS values of all studied groups were found elevated. Serum TAC showed significant negative correlations with MDA values (R= -0.51; P<0.001). Statistical significance was observed in all hematological parameters, producing either positive or negative correlation with at least one OS biomarker. Conclusion: The present data suggest that Sardinian patients with HL and NHL on the day of their diagnosis presented the highest OS in comparison to AML and healthy subjects. Moreover, MDS patients presented high OS status. Likewise, our results also indicated that changes in their hematological indices are eminent of their oxidative and antioxidative status.
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Affiliation(s)
- Ioannis Tsamesidis
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Anna Pekou
- Department of Biochemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Amrita Gusani
- Department of Pharmacy, University of Portsmouth, Portsmouth, UK
| | - Stavros Iliadis
- Department of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Kali Makedou
- Department of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Alessia Manca
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Antonio Carruale
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
| | - Eugenia Lymperaki
- Department of Medical Laboratories, Alexander Technological Educational Institute of Thessaloniki, Thessaloniki, Greece
| | - Claudio Fozza
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
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Homocysteine, Thioretinaco Ozonide, and Oxidative Phosphorylation in Cancer and Aging: A Proposed Clinical Trial Protocol. Methods Mol Biol 2019; 1866:285-310. [PMID: 30725425 DOI: 10.1007/978-1-4939-8796-2_23] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The objective of the proposed clinical interventional trial is to demonstrate the efficacy of a novel therapeutic strategy in subjects with cancer and hyperhomocysteinemia. Following discovery of abnormal homocysteine thiolactone metabolism in cultured malignant cells, thioretinamide, the amide synthesized from retinoic acid and homocysteine thiolactone, and thioretinaco, the complex formed from cobalamin and thioretinamide, were demonstrated to have antineoplastic, anticarcinogenic, and anti-atherogenic properties in animal models. Retinol, ascorbate, and homocysteine thiolactone are necessary for biosynthesis of thioretinamide and thioretinaco by cystathionine synthase and for formation of thioretinaco ozonide from thioretinamide, cobalamin, and ozone. Thioretinaco ozonide is required for prevention of abnormal oxidative metabolism, aerobic glycolysis, suppressed immunity, and hyperhomocysteinemia in cancer.The pancreatic enzyme therapy of cancer promotes catabolism of proteins, nucleic acids, and glycosaminoglycans with excess homocysteinylated amino groups resulting from abnormal accumulation of homocysteine thiolactone in malignant cells. Dietary deficiencies of pyridoxal, folate, cobalamin, and nitriloside contribute to hyperhomocysteinemia in cancer, and in protein energy malnutrition. A deficiency of dietary sulfur amino acids downregulates cystathionine synthase, causing hyperhomocysteinemia.The organic sulfur compound diallyl trisulfide increases hydrogen sulfide production from homocysteine in animal models, inhibits Stat3 signaling in cancer stem cells, and produces apoptosis of malignant cells. The furanonaphthoquinone compound napabucasin inhibits Stat3 signaling and causes mitochondrial dysfunction, decreased oxidative phosphorylation, and apoptosis of malignant cells. The protocol of the proposed clinical trial in subjects with myelodysplasia consists of thioretinamide and cobalamin as precursors of thioretinaco ozonide, combined with pancreatic enzyme extracts, diallyl trisulfide, napabucasin, nutritional modification to minimize processed foods, vitamin supplements, essential amino acids, and beneficial dietary fats and proteins.
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Lipid Peroxidation-Derived Aldehydes, 4-Hydroxynonenal and Malondialdehyde in Aging-Related Disorders. Antioxidants (Basel) 2018; 7:antiox7080102. [PMID: 30061536 PMCID: PMC6115986 DOI: 10.3390/antiox7080102] [Citation(s) in RCA: 141] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 07/26/2018] [Accepted: 07/27/2018] [Indexed: 02/07/2023] Open
Abstract
Among the various mechanisms involved in aging, it was proposed long ago that a prominent role is played by oxidative stress. A major way by which the latter can provoke structural damage to biological macromolecules, such as DNA, lipids, and proteins, is by fueling the peroxidation of membrane lipids, leading to the production of several reactive aldehydes. Lipid peroxidation-derived aldehydes can not only modify biological macromolecules, by forming covalent electrophilic addition products with them, but also act as second messengers of oxidative stress, having relatively extended lifespans. Their effects might be further enhanced with aging, as their concentrations in cells and biological fluids increase with age. Since the involvement and the role of lipid peroxidation-derived aldehydes, particularly of 4-hydroxynonenal (HNE), in neurodegenerations, inflammation, and cancer, has been discussed in several excellent recent reviews, in the present one we focus on the involvement of reactive aldehydes in other age-related disorders: osteopenia, sarcopenia, immunosenescence and myelodysplastic syndromes. In these aging-related disorders, characterized by increases of oxidative stress, both HNE and malondialdehyde (MDA) play important pathogenic roles. These aldehydes, and HNE in particular, can form adducts with circulating or cellular proteins of critical functional importance, such as the proteins involved in apoptosis in muscle cells, thus leading to their functional decay and acceleration of their molecular turnover and functionality. We suggest that a major fraction of the toxic effects observed in age-related disorders could depend on the formation of aldehyde-protein adducts. New redox proteomic approaches, pinpointing the modifications of distinct cell proteins by the aldehydes generated in the course of oxidative stress, should be extended to these age-associated disorders, to pave the way to targeted therapeutic strategies, aiming to alleviate the burden of morbidity and mortality associated with these disturbances.
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15
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Hlaváčková A, Štikarová J, Pimková K, Chrastinová L, Májek P, Kotlín R, Čermák J, Suttnar J, Dyr JE. Enhanced plasma protein carbonylation in patients with myelodysplastic syndromes. Free Radic Biol Med 2017; 108:1-7. [PMID: 28300669 DOI: 10.1016/j.freeradbiomed.2017.03.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 03/01/2017] [Accepted: 03/11/2017] [Indexed: 12/18/2022]
Abstract
Myelodysplastic syndromes (MDS) represent a heterogeneous group of pre-leukemic disorders, characterized by ineffective hematopoiesis and the abnormal blood cell development of one or more lineages. Oxidative stress, as an important factor in the carcinogenesis of onco-hematological diseases, is also one of the known factors involved in the pathogenesis of MDS. An increase of reactive oxygen species (ROS) may lead to the oxidation of DNA, lipids, and proteins, thereby causing cell damage. Protein carbonylation caused by ROS is defined as an irreversible post-translational oxidative modification of amino acid side chains, and could play an important role in signaling processes. The detection of protein carbonyl groups is a specific useful marker of oxidative stress. In this study, we examined 32 patients divided into three different subtypes of MDS according to the World Health Organization (WHO) classification criteria as refractory anemia with ringed sideroblasts (RARS), refractory cytopenia with multilineage dysplasia (RCMD), refractory anemia with excess blasts-1,2 (RAEB-1,2). We found significant differences in protein carbonylation between the group of all MDS patients and healthy controls (P=0.0078). Furthermore, carbonylated protein levels were significantly elevated in RARS patients compared to healthy donors (P=0.0013) and to RCMD patients (P=0.0277). We also found a significant difference in the total iron binding capacity (TIBC) between individual subgroups of MDS patients (P=0.0263). Moreover, TIBC was decreased in RARS patients compared to RCMD patients (P=0.0203). TIBC moderately negatively correlated with carbonyl levels (r=-0.5978, P=0.0054) in the MDS patients as a whole. Additionally we observed changes in the carbonylated proteins of RARS patients in comparison with healthy controls and their negative controls. Using tandem mass spectrometry (LC-MS/MS) we identified 27 uniquely carbonylated proteins of RARS patients, which were generated by ROS and could influence the pathophysiology of low-risk MDS. These data indicate that increased protein carbonylation is related with RARS as low-risk MDS subgroup. We suggest that this type of post-translational modification in MDS disease is not "only" a consequence of oxidative stress, but also plays an active role in the pathophysiology and iron metabolism within the RARS subgroup of MDS. Measurement of plasma carbonyl levels and the isolation of carbonylated plasma proteins, followed by their identification, could serve as a potential diagnostic and prognostic tool in MDS.
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Affiliation(s)
- Alžběta Hlaváčková
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, U Nemocnice 1, 128 00 Prague 2, Czechia.
| | - Jana Štikarová
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, U Nemocnice 1, 128 00 Prague 2, Czechia
| | - Kristýna Pimková
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, U Nemocnice 1, 128 00 Prague 2, Czechia
| | - Leona Chrastinová
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, U Nemocnice 1, 128 00 Prague 2, Czechia
| | - Pavel Májek
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, U Nemocnice 1, 128 00 Prague 2, Czechia
| | - Roman Kotlín
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, U Nemocnice 1, 128 00 Prague 2, Czechia
| | - Jaroslav Čermák
- Clinical Department, Institute of Hematology and Blood Transfusion, U Nemocnice 1, 128 00 Prague 2, Czechia
| | - Jiří Suttnar
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, U Nemocnice 1, 128 00 Prague 2, Czechia
| | - Jan Evangelista Dyr
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, U Nemocnice 1, 128 00 Prague 2, Czechia
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16
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Oxidative imbalance in low/intermediate-1-risk myelodysplastic syndrome patients: The influence of iron overload. Clin Biochem 2017; 50:911-917. [PMID: 28571970 DOI: 10.1016/j.clinbiochem.2017.05.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 05/15/2017] [Accepted: 05/28/2017] [Indexed: 12/29/2022]
Abstract
OBJECTIVE To assess the generation of reactive oxygen species (ROS) and the involvement of the main antioxidant pathways in low/intermediate-1-risk myelodysplastic syndromes (MDS) with iron overload (IOL). METHODS We examined the levels of superoxide anion (O2-), hydrogen peroxide (H2O2), antioxidants (glutathione, GSH; superoxide dismutase, SOD; catalase, CAT; and glutathione peroxidase, GPx), mitochondrial membrane potential (ΔΨm), and by-products of oxidative damage (8-isoprostanes and 8-oxo-7,8-dihydro-2'-deoxyguanosine, 8-oxo-dG) in 42 MDS patients (28 without IOL at diagnosis, and 14 who developed IOL) and 20 healthy subjects. RESULTS Patients with IOL showed higher O2- levels (39.4 MFI) than normal controls (22.7 MFI, p=0.0356) and patients at diagnosis (19.4 MFI, p=0.0049). Antioxidant systems, except SOD activity, exhibited significant changes in IOL patients with respect to controls (CAT: 7.1 vs 2.7nmol/ml/min, p=0.0023; GPx: 50.9 vs 76.4nmol/ml/min, p=0.0291; GSH: 50.2 vs 24.1 MFI, p=0.0060). Furthermore, mitochondrial dysfunction was only detected in IOL cases compared to controls (ΔΨm: 3.6 vs 6.4 MFI, p=0.0225). Finally, increased levels of 8-oxo-dG were detected in both groups of patients. CONCLUSION Oxidative stress is an important but non-static phenomenon in MDS disease, whose status is influenced by, among other factors, the presence of injurious iron.
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Mukherjee AK, Manna SK, Roy SK, Chakraborty M, Das S, Naskar JP. Plasma-aminothiols status and inverse correlation of total homocysteine with B-vitamins in arsenic exposed population of West Bengal, India. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2016; 51:962-973. [PMID: 27336853 DOI: 10.1080/10934529.2016.1191816] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Chronic arsenic toxicity is a serious environmental health problem across the world. Bangladesh and India (particularly the state of West Bengal) are the worst affected countries with such problem. The present study reports plasma-aminothiols (p-aminothiols) like L-cysteine (L-Cys), cysteinyl glycine (Cys-gly), total homocysteine (t-Hcy) and glutathione (GSH) status, and the inverse relationship of t-Hcy with B-vitamins (B1, B6, B9 and B12) in arsenic exposed population of West Bengal, India. Reverse phase HPLC was used to measure p-aminothiols and serum B-vitamins in different arsenic exposed population. Arsenic in drinking water and urine were measured by flow injection analysis system - Atomic Absorption Spectrometry (FIAS-AAS) and Transversely heated graphite atomizer (THGA-AAS) techniques, respectively. Water arsenic exposure was >50 µg/L in 50% population, of which majority (33.58%) belong to the range of >50-500 µg/L and more than 8% were even >1000 µg/L. Urine arsenic (µg/g creatinine) levels increased with arsenic exposure. The variability among p-aminothiols was also observed with higher exposure to arsenic in drinking water. A significant difference between exposed and control population was noticed for plasma L-Cys. The difference of B-vitamins between the population exposed to <50 and >50 µg/L arsenic in drinking water was also found to be significant. B9 and B12 deficiency with increased consumption of arsenic in water corroborates the anemic conditions commonly observed among arsenic exposed population. The aminothiol status indicated oxidative stress in exposed population. This study demonstrated progressive increase in plasma t-Hcy as well as inverse relationships of serum B-vitamins with increased water arsenic concentration.
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Affiliation(s)
- Ashit K Mukherjee
- a Regional Occupational Health Centre (Eastern), Indian Council of Medical Research, Kolkata , India
| | - Sujoy K Manna
- a Regional Occupational Health Centre (Eastern), Indian Council of Medical Research, Kolkata , India
| | - Sanjit K Roy
- a Regional Occupational Health Centre (Eastern), Indian Council of Medical Research, Kolkata , India
| | - Manisha Chakraborty
- a Regional Occupational Health Centre (Eastern), Indian Council of Medical Research, Kolkata , India
| | - Surajit Das
- a Regional Occupational Health Centre (Eastern), Indian Council of Medical Research, Kolkata , India
| | - Jnan P Naskar
- b Department of Chemistry , Jadavpur University , Kolkata , India
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18
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Maleki M, Samadi M, Khanmoradi M, Nematbakhsh M, Talebi A, Nasri H. The role of S-methylisothiourea hemisulfate as inducible nitric oxide synthase inhibitor against kidney iron deposition in iron overload rats. Adv Biomed Res 2016; 5:96. [PMID: 27308268 PMCID: PMC4908793 DOI: 10.4103/2277-9175.183145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 01/21/2015] [Indexed: 12/11/2022] Open
Abstract
Background: Iron dextran is in common use to maintain iron stores. However, it is potentially toxic and may lead to iron deposition (ID) and impair functions of organs. Iron overload can regulate the expression of inducible nitric oxide synthase (iNOS) in some cells that has an important role in tissue destruction. S-methylisothiourea hemisulfate (SMT) is a direct inhibitor of iNOS, and this study was designed to investigate the effect of SMT against kidney ID in iron overload rats. Materials and Methods: 24 Wistar rats (male and female) were randomly assigned to two groups. Iron overloading was performed by iron dextran 100 mg/kg/day every other day for 2 weeks. In addition, during the study, groups 1 and 2 received vehicle and SMT (10 mg/kg, ip), respectively. Finally, blood samples were obtained, and the kidneys were prepared for histopathological procedures. Results: SMT significantly reduced the serum levels of creatinine and blood urea nitrogen. However, SMT did not alter the serum levels of iron and nitrite, and the kidney tissue level of nitrite. Co-administration of SMT with iron dextran did not attenuate the ID in the kidney. Conclusion: SMT, as a specific iNOS inhibitor, could not protect the kidney from ID while it attenuated the serum levels of kidney function biomarkers.
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Affiliation(s)
- Maryam Maleki
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Melika Samadi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Mehdi Nematbakhsh
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran; Department of Physiology, Isfahan University of Medical Sciences, Isfahan, Iran; Isfahan MN Institute of Basic and Applied Sciences Research, Isfahan, Iran
| | - Ardeshir Talebi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hamid Nasri
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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Relation between Endothelial Nitric Oxide Synthase Genotypes and Oxidative Stress Markers in Larynx Cancer. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:4985063. [PMID: 26682008 PMCID: PMC4670686 DOI: 10.1155/2016/4985063] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 08/10/2015] [Accepted: 08/11/2015] [Indexed: 01/09/2023]
Abstract
Nitric oxide synthase (eNOS/NOS3) is responsible for the endothelial synthesis of nitric oxide (NO(•)). G894T polymorphism leads to the amino acid substitution from Glu298Asp that causes lower NOS3 activity and basal NO(•) production in NOS3 894T (298Asp) allele carriers compared with the GG homozygotes. NO(•) acts as an antioxidant protecting against Fenton's reaction which generates highly reactive hydroxyl radicals. Allelic variation of NOS3 may influence an individual's risk of laryngeal cancer (LC). In the current study we have examined the possible relationship between NOS3 G894T genotypes and various systemic oxidative damage markers such as protein carbonyl, advanced oxidation protein products, Cu, Zn-superoxide dismutase, thiol group fractions, and lipid hydroperoxides in LC patients. Genotyping was carried out by PCR-RFLP. In LC patients with TT genotype, Cu, Zn-superoxide dismutase activities and nonprotein thiol levels were significantly higher than the controls. In patients with GT and GG genotype, high levels of lipid hydroperoxides showed statistical significance when compared to controls. Our results indicate a potential relationship among G894T polymorphism of NOS3, and impaired redox homeostasis. Further studies are required to determine the role of NOS3 gene polymorphism and impaired plasma redox homeostasis.
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20
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Baggott JE, Tamura T. Homocysteine, iron and cardiovascular disease: a hypothesis. Nutrients 2015; 7:1108-18. [PMID: 25668155 PMCID: PMC4344578 DOI: 10.3390/nu7021108] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 01/27/2015] [Indexed: 12/26/2022] Open
Abstract
Elevated circulating total homocysteine (tHcy) concentrations (hyperhomocysteinemia) have been regarded as an independent risk factor for cardiovascular disease (CVD). However, several large clinical trials to correct hyperhomocysteinemia using B-vitamin supplements (particularly folic acid) have largely failed to reduce the risk of CVD. There is no doubt that a large segment of patients with CVD have hyperhomocysteinemia; therefore, it is reasonable to postulate that circulating tHcy concentrations are in part a surrogate marker for another, yet-to-be-identified risk factor(s) for CVD. We found that iron catalyzes the formation of Hcy from methionine, S-adenosylhomocysteine and cystathionine. Based on these findings, we propose that an elevated amount of non-protein-bound iron (free Fe) increases circulating tHcy. Free Fe catalyzes the formation of oxygen free radicals, and oxidized low-density lipoprotein is a well-established risk factor for vascular damage. In this review, we discuss our findings on iron-catalyzed formation of Hcy from thioethers as well as recent findings by other investigators on this issue. Collectively, these support our hypothesis that circulating tHcy is in part a surrogate marker for free Fe, which is one of the independent risk factors for CVD.
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Affiliation(s)
- Joseph E Baggott
- Department of Nutrition Sciences, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
| | - Tsunenobu Tamura
- Department of Nutrition Sciences, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
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