1
|
Lotens A, Prudent M, Rapaille A. Antioxidants in single methylene-blue-treated plasma units cannot be used to predict pathogen inactivation treatment success. Vox Sang 2022; 117:937-942. [PMID: 35445418 DOI: 10.1111/vox.13273] [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: 10/05/2021] [Revised: 03/08/2022] [Accepted: 03/08/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND OBJECTIVES Measurement of antioxidant power (AOP) can be useful to validate the execution of the pathogen inactivation (PI) treatment of plasma units. The aim of this study was to evaluate the Theraflex technology for plasma units routinely used in Belgium. MATERIALS AND METHODS AOP was tested on plasma units treated by Theraflex with various non-complete treatment scenarios. AOP was quantified electrochemically using disposable devices and was expressed as equivalent ascorbic acid concentration. RESULTS During a complete PI treatment, AOP rose from 195 ± 32 to 230 ± 42 μmol/L eq. ascorbic acid after addition of methylene blue (MB), and decreased to 192 ± 30 μmol/L eq. ascorbic acid after illumination and finally to 177 ± 27 μmol/L eq. ascorbic acid after final filtration. Without MB, the final filtration had no effect on the plasma AOP (197 ± 22 μmol/L eq. ascorbic acid before filtration and 194 ± 22 μmol/L eq. ascorbic acid after filtration). With no MB and no illumination, there was no significant difference between the plasma AOP at the beginning (188 ± 23 μmol/L eq. ascorbic acid) and at the end of the process (179 ± 21 μmol/L eq. ascorbic acid). CONCLUSION AOP measurement may not indicate the effectiveness of the PI treatment.
Collapse
Affiliation(s)
- Anaïs Lotens
- Blood Service, Belgian Red Cross, Namur, Belgium
| | - Michel Prudent
- Laboratoire de Recherche sur les Produits Sanguins, Recherche et Développement Produits, Transfusion Interrégionale CRS, Epalinges, Switzerland.,Faculté de Biologie et de Médecine, Université de Lausanne, Lausanne, Switzerland.,Center for Research and Innovation in Clinical Pharmaceutical Sciences, Institute of Pharmaceutical Sciences of Western Switzerland, University Hospital and University of Lausanne, Lausanne, Switzerland
| | | |
Collapse
|
2
|
Effects of acute and sub-acute hypobaric hypoxia on oxidative stress: a field study in the Alps. Eur J Appl Physiol 2020; 121:297-306. [PMID: 33057877 DOI: 10.1007/s00421-020-04527-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 10/06/2020] [Indexed: 01/07/2023]
Abstract
PURPOSE High altitude results in lower barometric pressure and hence partial pressure of O2 decrease can lead to several molecular and cellular changes, such as generation of reactive oxygen species (ROS). Electron Paramagnetic Resonance technique was adopted in the field, to evaluate the effects of acute and sub-acute hypobaric hypoxia (HH) on ROS production by micro-invasive method. Biological biomarkers, indicators of oxidative stress, renal function and inflammation were investigated too. METHODS Fourteen lowlander subjects (mean age 27.3 ± 5.9 years) were exposed to HH at 3269 m s.l. ROS production, related oxidative damage to cellular components, systemic inflammatory response and renal function were determined through blood and urine profile performed at 1st, 2nd, 4th, 7th, and 14th days during sojourn. RESULTS Kinetics of changes during HH exposition showed out significant (range p < 0.05-0.0001) increases that at max corresponds to 38% for ROS production rate, 140% for protein carbonyl, 44% for lipid peroxidation, 42% for DNA damage, 200% for inflammatory cytokines and modifications in renal function (assessed by neopterin concentration: 48%). Conversely, antioxidant capacity significantly (p < 0.0001) decreased - 17% at max. CONCLUSION This 14 days in-field study describes changes of oxidative-stress biomarkers during HH exposure in lowlanders. The results show an overproduction of ROS and consequent oxidative damage to protein, lipids and DNA with a decrease in antioxidant capacity and the involvement of inflammatory status and a transient renal dysfunction. Exposure at high altitude induces a hypoxic condition during acute and sub-acute phases accompanied by molecular adaptation mechanism indicating acclimatization.
Collapse
|
3
|
Lotens A, Abonnenc M, Malvaux N, Schuhmacher A, Prudent M, Rapaille A. Antioxidant power measurement in platelet concentrates treated by two pathogen inactivation systems in different blood centres. Vox Sang 2020; 116:53-59. [PMID: 32797682 DOI: 10.1111/vox.12979] [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: 02/28/2020] [Revised: 06/16/2020] [Accepted: 07/01/2020] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND OBJECTIVES The antioxidant power measurement can be useful to validate the execution of the pathogen inactivation treatment of platelet concentrates. The aim of this study is to evaluate the technology on different blood preparations including INTERCEPT and Mirasol treatments that are in routine use in Belgium and Luxemburg. MATERIALS AND METHODS The antioxidant power measurement was tested on 78 apheresis platelet concentrates and 54 pools of buffy-coats-derived platelet concentrates before and after INTERCEPT treatment. In addition, 100 Reveos platelet pools were tested before and after Mirasol treatment. The antioxidant power was quantified electrochemically using disposable devices and was expressed as equivalent ascorbic acid concentration. RESULTS Mean results for apheresis platelet concentrates were of 90 ± 14 and 35 ± 10 µmol/l eq. ascorbic acid before and after INTERCEPT treatment, respectively. The mean results for pools of buffy-coats-derived platelet concentrates were of 81 ± 10 and 29 ± 4 eq. µmol/l ascorbic acid before and after INTERCEPT treatment, respectively. For buffy-coats-derived platelet concentrates treated by Mirasol technology, the mean results were of 98 ± 11 and 32 ± 10 µmol/l eq. ascorbic acid before and after illumination, respectively. CONCLUSION The antioxidant power significantly decreases with pathogen inactivation treatments for platelet concentrates treated by INTERCEPT or Mirasol technologies.
Collapse
Affiliation(s)
- Anaïs Lotens
- Blood Service, Belgian Red Cross, Namur, Belgium
| | - Mélanie Abonnenc
- Laboratoire de Recherche sur les Produits Sanguins, Recherche et Développement Produits, Transfusion Interrégionale CRS, Epalinges, Switzerland
| | | | | | - Michel Prudent
- Laboratoire de Recherche sur les Produits Sanguins, Recherche et Développement Produits, Transfusion Interrégionale CRS, Epalinges, Switzerland.,Centre de transfusion sanguine, Faculté de Biologie et de Médecine, Université de Lausanne, Lausanne, Switzerland
| | | |
Collapse
|
4
|
Restoration of Physiological Levels of Uric Acid and Ascorbic Acid Reroutes the Metabolism of Stored Red Blood Cells. Metabolites 2020; 10:metabo10060226. [PMID: 32486030 PMCID: PMC7344535 DOI: 10.3390/metabo10060226] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/18/2020] [Accepted: 05/24/2020] [Indexed: 12/24/2022] Open
Abstract
After blood donation, the red blood cells (RBCs) for transfusion are generally isolated by centrifugation and then filtrated and supplemented with additive solution. The consecutive changes of the extracellular environment participate to the occurrence of storage lesions. In this study, the hypothesis is that restoring physiological levels of uric and ascorbic acids (major plasmatic antioxidants) might correct metabolism defects and protect RBCs from the very beginning of the storage period, to maintain their quality. Leukoreduced CPD-SAGM RBC concentrates were supplemented with 416 µM uric acid and 114 µM ascorbic acid and stored during six weeks at 4 °C. Different markers, i.e., haematological parameters, metabolism, sensitivity to oxidative stress, morphology and haemolysis were analyzed. Quantitative metabolomic analysis of targeted intracellular metabolites demonstrated a direct modification of several metabolite levels following antioxidant supplementation. No significant differences were observed for the other markers. In conclusion, the results obtained show that uric and ascorbic acids supplementation partially prevented the metabolic shift triggered by plasma depletion that occurs during the RBC concentrate preparation. The treatment directly and indirectly sustains the antioxidant protective system of the stored RBCs.
Collapse
|
5
|
Abonnenc M, Crettaz D, Sonego G, Escolar G, Tissot JD, Prudent M. Towards the understanding of the UV light, riboflavin and additive solution contributions to the in vitro lesions observed in Mirasol®-treated platelets. Transfus Clin Biol 2019; 26:209-216. [PMID: 31563447 DOI: 10.1016/j.tracli.2019.09.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 09/07/2019] [Indexed: 10/26/2022]
Abstract
OBJECTIVES Pathogen reduction technologies are implemented to increase the safety of blood products. We previously showed that the UVB alone significantly contributes to the storage lesions observed in platelets treated with riboflavin/UVB using a home-made illuminator. The present study aims at confirming these observations using the commercial Mirasol® technology. METHODS A three-arm study (untreated, UV-, Mirasol®-treated platelets) was conducted to investigate the platelet storage lesions throughout storage (n=4). A two-arm study was then designed to compare Intersol and T-PAS+ additive solutions (n=3). Phenotype and functional platelet characteristics were assessed using flow cytometry, aggregometry, antioxidant assays and metabolic parameters. RESULTS Mirasol®-treated platelets exhibit enhanced storage lesions compared to controls (increase of activation markers and glycolysis rate, lower hypotonic shock and double-agonist activation responses, and decrease of total antioxidant capacity). Here, we also confirmed that the UV radiation alone is causing platelet lesions. Riboflavin tends to have an intracellular protective role while it decreases the extracellular antioxidant defenses. Furthermore, benefits of platelet additive solutions containing potassium and magnesium were confirmed as it reduces the extent of storage lesions. CONCLUSIONS The photosensitizer, UV illumination and composition of the platelet additive solutions are key parameters influencing the platelet storage lesion. The clinical relevance of these findings is not fully understood and recent published clinical studies could not show increase in bleeding in patients receiving Mirasol-treated platelets. New developments in storage solutions might help to improve storage conditions of PRT-treated platelets and should be prioritised as research subject in the future.
Collapse
Affiliation(s)
- M Abonnenc
- Laboratoire de Recherche sur les Produits Sanguins, Recherche et Développement Produits, Transfusion Interrégionale CRS, Epalinges, Switzerland
| | - D Crettaz
- Laboratoire de Recherche sur les Produits Sanguins, Recherche et Développement Produits, Transfusion Interrégionale CRS, Epalinges, Switzerland
| | - G Sonego
- Laboratoire de Recherche sur les Produits Sanguins, Recherche et Développement Produits, Transfusion Interrégionale CRS, Epalinges, Switzerland
| | - G Escolar
- Department of Hematopathology, Hospital Clinic of Barcelona, Biomedical Diagnosis Centre (CDB), Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain
| | - J-D Tissot
- Laboratoire de Recherche sur les Produits Sanguins, Recherche et Développement Produits, Transfusion Interrégionale CRS, Epalinges, Switzerland; Faculté de Biologie et de Médecine, Université de Lausanne, Lausanne, Switzerland
| | - M Prudent
- Laboratoire de Recherche sur les Produits Sanguins, Recherche et Développement Produits, Transfusion Interrégionale CRS, Epalinges, Switzerland; Faculté de Biologie et de Médecine, Université de Lausanne, Lausanne, Switzerland.
| |
Collapse
|
6
|
Jarošová R, Mcclure SE, Gajda M, Jović M, Girault HH, Lesch A, Maiden M, Waters C, Swain GM. Inkjet-Printed Carbon Nanotube Electrodes for Measuring Pyocyanin and Uric Acid in a Wound Fluid Simulant and Culture Media. Anal Chem 2019; 91:8835-8844. [DOI: 10.1021/acs.analchem.8b05591] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Romana Jarošová
- Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, Michigan 48824, United States
- Faculty of Science, University Research Centre UNCE “Supramolecular Electrochemistry”, Department of Analytical Chemistry, UNESCO Laboratory of Environmental Electrochemistry, Charles University in Prague, Albertov 6, 128 43 Prague 2, Czech Republic
| | - Sandra E. Mcclure
- Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, Michigan 48824, United States
| | - Margaret Gajda
- Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, Michigan 48824, United States
| | - Milica Jović
- Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, EPFL Valais Wallis, Rue de l’Industrie 17, CP 400, CH-1951 Sion, Switzerland
| | - Hubert H. Girault
- Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, EPFL Valais Wallis, Rue de l’Industrie 17, CP 400, CH-1951 Sion, Switzerland
| | - Andreas Lesch
- Department of Industrial Chemistry “Toso Montanari”, University of Bologna, Viale del Risorgimento 4, 40136 Bologna, Italy
| | - Michael Maiden
- Department of Microbiology and Molecular Genetics, Michigan State University, 567 Wilson Road, East Lansing, Michigan 48824, United States
| | - Christopher Waters
- Department of Microbiology and Molecular Genetics, Michigan State University, 567 Wilson Road, East Lansing, Michigan 48824, United States
| | - Greg M. Swain
- Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, Michigan 48824, United States
| |
Collapse
|
7
|
Mrakic-Sposta S, Di Santo SG, Franchini F, Arlati S, Zangiacomi A, Greci L, Moretti S, Jesuthasan N, Marzorati M, Rizzo G, Sacco M, Vezzoli A. Effects of Combined Physical and Cognitive Virtual Reality-Based Training on Cognitive Impairment and Oxidative Stress in MCI Patients: A Pilot Study. Front Aging Neurosci 2018; 10:282. [PMID: 30327596 PMCID: PMC6174250 DOI: 10.3389/fnagi.2018.00282] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 08/29/2018] [Indexed: 01/15/2023] Open
Abstract
The growing elderly population and the increased incidence of mild cognitive impairment (MCI) and Alzheimer's disease (AD) call for the improvement of the quality and the efficacy of the healthcare and social support services. Exercise and cognitive stimulation have been demonstrated to mitigate cognitive impairment and oxidative stress (OxS) has been recognized as a factor that contributes to the advancement of neurodegenerative diseases. Taking these aspects into account, the impact of a novel virtual reality (VR)-based program combining aerobic exercise and cognitive training has been evaluated in the pilot study proposed here. Ten patients (aged 73.3 ± 5.7 years) with MCI (Mini-Mental State Examination, MMSE: 23.0 ± 3.4) were randomly assigned to either 6 weeks physical and cognitive training (EXP) or control (CTR) group. Evaluations of cognitive profile, by a neuropsychological tests battery, and OxS, by collection of blood and urine samples, were performed before and at the end of the experimental period. The assessment of the patients' opinions toward the intervention was investigated through questionnaires. EXP group showed a tendency towards improvements in the MMSE, in visual-constructive test and visuo-spatial tests of attention, while CTR worsened. EXP group showed a greater improvement than CTR in the executive test, memory functions and verbal fluency. No statistical significance was obtained when comparing within and between both the groups, probably due to small number of subjects examined, which amplifies the effect of the slight heterogeneity in scores recorded. Despite a greater worsening of Daily Living Activities tests, all participants reported a better performance in real life, thanks to the elicited self-perceived improvement. After training intervention OxS (i.e., reactive oxygen species (ROS) production, oxidative damage of lipids and DNA) decreased resulting in significantly (range p < 0.05-0.001) lower in EXP vs. CTR group. Although not conclusive, the recorded effects in the present study are promising and suggest that this proposal would be a useful tool in support of cognitive training reducing OxS too. However, further studies on larger scale samples of patients are needed.
Collapse
Affiliation(s)
- Simona Mrakic-Sposta
- Consiglio Nazionale delle Ricerche (IBFM-CNR), Istituto di Bioimmagini e Fisiologia Molecolare, Milan, Italy
| | | | | | - Sara Arlati
- Consiglio Nazionale delle Ricerche (ITIA-CNR), Istituto di Tecnologie Industriali e Automazione, Milan, Italy
- Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Milan, Italy
| | - Andrea Zangiacomi
- Consiglio Nazionale delle Ricerche (ITIA-CNR), Istituto di Tecnologie Industriali e Automazione, Milan, Italy
| | - Luca Greci
- Consiglio Nazionale delle Ricerche (ITIA-CNR), Istituto di Tecnologie Industriali e Automazione, Milan, Italy
| | - Sarah Moretti
- Consiglio Nazionale delle Ricerche (IBFM-CNR), Istituto di Bioimmagini e Fisiologia Molecolare, Milan, Italy
| | - Nithiya Jesuthasan
- Consiglio Nazionale delle Ricerche (ITB-CNR), Istituto di Tecnologie Biomediche, Milan, Italy
| | - Mauro Marzorati
- Consiglio Nazionale delle Ricerche (IBFM-CNR), Istituto di Bioimmagini e Fisiologia Molecolare, Milan, Italy
| | - Giovanna Rizzo
- Consiglio Nazionale delle Ricerche (IBFM-CNR), Istituto di Bioimmagini e Fisiologia Molecolare, Milan, Italy
| | - Marco Sacco
- Consiglio Nazionale delle Ricerche (ITIA-CNR), Istituto di Tecnologie Industriali e Automazione, Milan, Italy
| | - Alessandra Vezzoli
- Consiglio Nazionale delle Ricerche (IBFM-CNR), Istituto di Bioimmagini e Fisiologia Molecolare, Milan, Italy
| |
Collapse
|
8
|
Bardyn M, Maye S, Lesch A, Delobel J, Tissot JD, Cortés-Salazar F, Tacchini P, Lion N, Girault HH, Prudent M. The antioxidant capacity of erythrocyte concentrates is increased during the first week of storage and correlated with the uric acid level. Vox Sang 2017; 112:638-647. [PMID: 28833258 DOI: 10.1111/vox.12563] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 07/04/2017] [Accepted: 07/09/2017] [Indexed: 01/04/2023]
Abstract
BACKGROUND AND OBJECTIVES Red blood cells (RBCs) suffer from lesions during cold storage, depending in part on their ability to counterbalance oxidative stress by activating their antioxidant defence. The aim of this study was to monitor the antioxidant power (AOP) in erythrocyte concentrates (ECs) during cold storage. MATERIALS AND METHODS Six ECs were prepared in saline-adenine-glucose-mannitol (SAGM) additive solution and followed during 43 days. The AOP was quantified electrochemically using disposable electrode strips and compared with results obtained from a colorimetric assay. Haematological data, data on haemolysis and the extracellular concentration of uric acid were also recorded. Additionally, a kinetic model was developed to extract quantitative kinetic data on the AOP behaviour. RESULTS The AOP of total ECs and their extracellular samples attained a maximum after 1 week of storage prior to decaying and reaching a plateau, as shown by the electrochemical measurements. The observed trend was confirmed with a colorimetric assay. Uric acid had a major contribution to the extracellular AOP. Interestingly, the AOP and uric acid levels were linked to the sex of the donors. CONCLUSION The marked increase in AOP during the first week of storage suggests that RBCs are impacted early by the modification of their environment. The AOP behaviour reflects the changes in metabolism activity following the adjustment of the extracellular uric acid level. Knowing the origin, interdonor variability and the effects of the AOP on the RBCs could be beneficial for the storage quality, which will have to be further studied.
Collapse
Affiliation(s)
- M Bardyn
- Laboratoire de Recherche sur les Produits Sanguins, Transfusion Interrégionale CRS, Epalinges, Switzerland
| | - S Maye
- Laboratoire d'Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, EPFL Valais Wallis, Sion, Switzerland
| | - A Lesch
- Laboratoire d'Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, EPFL Valais Wallis, Sion, Switzerland
| | - J Delobel
- Laboratoire de Recherche sur les Produits Sanguins, Transfusion Interrégionale CRS, Epalinges, Switzerland
| | - J-D Tissot
- Laboratoire de Recherche sur les Produits Sanguins, Transfusion Interrégionale CRS, Epalinges, Switzerland
| | - F Cortés-Salazar
- Laboratoire d'Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, EPFL Valais Wallis, Sion, Switzerland
| | - P Tacchini
- EDEL-for-Life, Innovation Park/EPFL, Lausanne, Switzerland
| | - N Lion
- Laboratoire de Recherche sur les Produits Sanguins, Transfusion Interrégionale CRS, Epalinges, Switzerland
| | - H H Girault
- Laboratoire d'Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, EPFL Valais Wallis, Sion, Switzerland
| | - M Prudent
- Laboratoire de Recherche sur les Produits Sanguins, Transfusion Interrégionale CRS, Epalinges, Switzerland
| |
Collapse
|
9
|
Redox Proteomics and Platelet Activation: Understanding the Redox Proteome to Improve Platelet Quality for Transfusion. Int J Mol Sci 2017; 18:ijms18020387. [PMID: 28208668 PMCID: PMC5343922 DOI: 10.3390/ijms18020387] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 01/27/2017] [Accepted: 02/07/2017] [Indexed: 12/13/2022] Open
Abstract
Blood banks use pathogen inactivation (PI) technologies to increase the safety of platelet concentrates (PCs). The characteristics of PI-treated PCs slightly differ from those of untreated PCs, but the underlying reasons are not well understood. One possible cause is the generation of oxidative stress during the PI process. This is of great interest since reactive oxygen species (ROS) act as second messengers in platelet functions. Furthermore, there are links between protein oxidation and phosphorylation, another mechanism that is critical for cell regulation. Current research efforts focus on understanding the underlying mechanisms and identifying new target proteins. Proteomics technologies represent powerful tools for investigating signaling pathways involving ROS and post-translational modifications such as phosphorylation, while quantitative techniques enable the comparison of the platelet resting state versus the stimulated state. In particular, redox cysteine is a key player in platelet activation upon stimulation by different agonists. This review highlights the experiments that have provided insights into the roles of ROS in platelet function and the implications for platelet transfusion, and potentially in diseases such as inflammation and platelet hyperactivity. The review also describes the implication of redox mechanism in platelet storage considerations.
Collapse
|
10
|
Lin TE, Lesch A, Li CL, Girault HH. Mapping the antioxidant activity of apple peels with soft probe scanning electrochemical microscopy. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.01.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
11
|
Graczyk H, Lewinski N, Zhao J, Sauvain JJ, Suarez G, Wild P, Danuser B, Riediker M. Increase in oxidative stress levels following welding fume inhalation: a controlled human exposure study. Part Fibre Toxicol 2016; 13:31. [PMID: 27286820 PMCID: PMC4901438 DOI: 10.1186/s12989-016-0143-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 06/03/2016] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Tungsten inert gas (TIG) welding represents one of the most widely used metal joining processes in industry. It has been shown to generate a large majority of particles at the nanoscale and to have low mass emission rates when compared to other types of welding. Despite evidence that TIG fume particles may produce reactive oxygen species (ROS), limited data is available for the time course changes of particle-associated oxidative stress in exposed TIG welders. METHODS Twenty non-smoking male welding apprentices were exposed to TIG welding fumes for 60 min under controlled, well-ventilated settings. Exhaled breathe condensate (EBC), blood and urine were collected before exposure, immediately after exposure, 1 h and 3 h post exposure. Volunteers participated in a control day to account for oxidative stress fluctuations due to circadian rhythm. Biological liquids were assessed for total reducing capacity, hydrogen peroxide (H2O2), malondialdehyde (MDA), and 8-hydroxy-2'-deoxyguanosine (8-OHdG) concentrations at each time point. A linear mixed model was used to assess within day and between day differences. RESULTS Significant increases in the measured biomarkers were found at 3 h post exposure. At 3 h post exposure, we found a 24 % increase in plasma-H2O2 concentrations ([95%CI: 4 % to 46 %], p = 0.01); a 91 % increase in urinary-H2O2 ([2 % to 258 %], p = 0.04); a 14 % increase in plasma-8-OHdG ([0 % to 31 %], p = 0.049); and a 45 % increase in urinary-8-OHdG ([3 % to 105 %], p = 0.03). Doubling particle number concentration (PNC) exposure was associated with a 22 % increase of plasma-8-OHdG at 3 h post exposure (p = 0.01). CONCLUSION A 60-min exposure to TIG welding fume in a controlled, well-ventilated setting induced acute oxidative stress at 3 h post exposure in healthy, non-smoking apprentice welders not chronically exposed to welding fumes. As mass concentration of TIG welding fume particles is very low when compared to other types of welding, it is recommended that additional exposure metrics such as PNC are considered for occupational risk assessments. Our findings highlight the importance of increasing awareness of TIG welding fume toxicity, especially given the realities of welding workplaces that may lack ventilation; and beliefs among interviewed welders that TIG represents a cleaner and safer welding process.
Collapse
Affiliation(s)
- Halshka Graczyk
- Institute for Work and Health, University of Lausanne and Geneva, Lausanne, CH-1066, Switzerland
| | - Nastassja Lewinski
- Institute for Work and Health, University of Lausanne and Geneva, Lausanne, CH-1066, Switzerland.,Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, VA, 23284, USA
| | - Jiayuan Zhao
- Institute for Work and Health, University of Lausanne and Geneva, Lausanne, CH-1066, Switzerland.,Department of Environmental Health, Harvard T. H. Chan School of Public Health, Harvard University, 665 Huntington Ave., Boston, MA, 02115, USA
| | - Jean-Jacques Sauvain
- Institute for Work and Health, University of Lausanne and Geneva, Lausanne, CH-1066, Switzerland
| | - Guillaume Suarez
- Institute for Work and Health, University of Lausanne and Geneva, Lausanne, CH-1066, Switzerland
| | - Pascal Wild
- Department of Scientific Management, National Institute for Research and Security, INRS, Vandoeuvre, 54500, France
| | - Brigitta Danuser
- Institute for Work and Health, University of Lausanne and Geneva, Lausanne, CH-1066, Switzerland
| | - Michael Riediker
- Institute for Work and Health, University of Lausanne and Geneva, Lausanne, CH-1066, Switzerland. .,SAFENANO, IOM Singapore, Singapore, 048622, Singapore.
| |
Collapse
|
12
|
Abonnenc M, Crettaz D, Tacchini P, Di Vincenzo L, Sonego G, Prudent M, Tissot JD, Lion N. Antioxidant power as a quality control marker for completeness of amotosalen and ultraviolet A photochemical treatments in platelet concentrates and plasma units. Transfusion 2016; 56:1819-27. [DOI: 10.1111/trf.13638] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 03/15/2016] [Accepted: 03/20/2016] [Indexed: 12/15/2022]
Affiliation(s)
- Mélanie Abonnenc
- Laboratoire de Recherche sur les Produits Sanguins; Transfusion Interrégionale CRS; Epalinges Switzerland
| | - David Crettaz
- Laboratoire de Recherche sur les Produits Sanguins; Transfusion Interrégionale CRS; Epalinges Switzerland
| | | | - Luciana Di Vincenzo
- Laboratoire de Recherche sur les Produits Sanguins; Transfusion Interrégionale CRS; Epalinges Switzerland
| | - Giona Sonego
- Laboratoire de Recherche sur les Produits Sanguins; Transfusion Interrégionale CRS; Epalinges Switzerland
| | - Michel Prudent
- Laboratoire de Recherche sur les Produits Sanguins; Transfusion Interrégionale CRS; Epalinges Switzerland
| | - Jean-Daniel Tissot
- Laboratoire de Recherche sur les Produits Sanguins; Transfusion Interrégionale CRS; Epalinges Switzerland
| | - Niels Lion
- Laboratoire de Recherche sur les Produits Sanguins; Transfusion Interrégionale CRS; Epalinges Switzerland
| |
Collapse
|
13
|
Mrakic-Sposta S, Gussoni M, Moretti S, Pratali L, Giardini G, Tacchini P, Dellanoce C, Tonacci A, Mastorci F, Borghini A, Montorsi M, Vezzoli A. Effects of Mountain Ultra-Marathon Running on ROS Production and Oxidative Damage by Micro-Invasive Analytic Techniques. PLoS One 2015; 10:e0141780. [PMID: 26540518 PMCID: PMC4634988 DOI: 10.1371/journal.pone.0141780] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 10/13/2015] [Indexed: 12/21/2022] Open
Abstract
PURPOSE Aiming to gain a detailed insight into the physiological mechanisms involved under extreme conditions, a group of experienced ultra-marathon runners, performing the mountain Tor des Géants® ultra-marathon: 330 km trail-run in Valle d'Aosta, 24000 m of positive and negative elevation changes, was monitored. ROS production rate, antioxidant capacity, oxidative damage and inflammation markers were assessed, adopting micro-invasive analytic techniques. METHODS Forty-six male athletes (45.04±8.75 yr, 72.6±8.4 kg, 1.76±0.05 m) were tested. Capillary blood and urine were collected before (Pre-), in the middle (Middle-) and immediately after (Post-) Race. Samples were analyzed for: Reactive Oxygen Species (ROS) production by Electron Paramagnetic Resonance; Antioxidant Capacity by Electrochemistry; oxidative damage (8-hydroxy-2-deoxy Guanosine: 8-OH-dG; 8-isoprostane: 8-isoPGF2α) and nitric oxide metabolites by enzymatic assays; inflammatory biomarkers (plasma and urine interleukin-6: IL-6-P and IL-6-U) by enzyme-linked immunosorbent assays (ELISA); Creatinine and Neopterin by HPLC, hematologic (lactate, glucose and hematocrit) and urine parameters by standard analyses. RESULTS Twenty-five athletes finished the race, while twenty-one dropped out of it. A significant increase (Post-Race vs Pre) of the ROS production rate (2.20±0.27 vs 1.65±0.22 μmol.min-1), oxidative damage biomarkers (8-OH-dG: 6.32±2.38 vs 4.16±1.25 ng.mg-1 Creatinine and 8-isoPGF2α: 1404.0±518.30 vs 822.51±448.91 pg.mg-1Creatinine), inflammatory state (IL-6-P: 66.42±36.92 vs 1.29±0.54 pg.mL-1 and IL-6-U: 1.33±0.56 vs 0.71±0.17 pg.mL1) and lactate production (+190%), associated with a decrease of both antioxidant capacity (-7%) and renal function (i.e. Creatinine level +76%) was found. CONCLUSIONS The used micro-invasive analytic methods allowed us to perform most of them before, during and immediately after the race directly in the field, by passing the need of storing and transporting samples for further analysis. Considered altogether the investigated variables showed up that exhaustive and prolonged exercise not only promotes the generation of ROS but also induces oxidative stress, transient renal impairment and inflammation.
Collapse
Affiliation(s)
- Simona Mrakic-Sposta
- Institute of Bioimaging and Molecular Physiology, National Council of Research (CNR), Segrate (Milan), Italy
| | - Maristella Gussoni
- Department of Pathophysiology and Transplantation−Physiology Section, University of Milan, Milan, Italy
| | - Sarah Moretti
- Institute of Bioimaging and Molecular Physiology, National Council of Research (CNR), Segrate (Milan), Italy
| | - Lorenza Pratali
- Institute of Clinical Physiology, National Council of Research (CNR), Pisa, Italy
| | - Guido Giardini
- Neurology and Neurophysiology Department. Mountain Medicine Center Valle d’Aosta Regional Hospital Umberto Parini, Aosta, Italy
| | | | - Cinzia Dellanoce
- Institute of Clinical Physiology, National Council of Research (CNR), Pisa, Italy
| | - Alessandro Tonacci
- Institute of Clinical Physiology, National Council of Research (CNR), Pisa, Italy
| | - Francesca Mastorci
- Institute of Clinical Physiology, National Council of Research (CNR), Pisa, Italy
| | - Andrea Borghini
- Institute of Clinical Physiology, National Council of Research (CNR), Pisa, Italy
| | | | - Alessandra Vezzoli
- Institute of Bioimaging and Molecular Physiology, National Council of Research (CNR), Segrate (Milan), Italy
- * E-mail:
| |
Collapse
|
14
|
Training effects on ROS production determined by electron paramagnetic resonance in master swimmers. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:804794. [PMID: 25874024 PMCID: PMC4385700 DOI: 10.1155/2015/804794] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 12/18/2014] [Indexed: 12/17/2022]
Abstract
Acute exercise induces an increase in Reactive Oxygen Species (ROS) production dependent on exercise intensity with highest ROS amount generated by strenuous exercise. However, chronic repetition of exercise, that is, exercise training, may reduce exercise-induced oxidative stress. Aim of this study was to evaluate the effects of 6-weeks high-intensity discontinuous training (HIDT), characterized by repeated variations of intensity and changes of redox potential, on ROS production and antioxidant capacity in sixteen master swimmers. Time course changes of ROS generation were assessed by Electron Paramagnetic Resonance in capillary blood by a microinvasive approach. An incremental arm-ergometer exercise (IE) until exhaustion was carried out at both before (PRE) and after (POST) training (Trg) period. A significant (P < 0.01) increase of ROS production from REST to the END of IE in PRE Trg (2.82 ± 0.66 versus 3.28 ± 0.66 µmol·min(-1)) was observed. HIDT increased peak oxygen consumption (36.1 ± 4.3 versus 40.6 ± 5.7 mL·kg(-1)·min(-1) PRE and POST Trg, resp.) and the antioxidant capacity (+13%) while it significantly decreased the ROS production both at REST (-20%) and after IE (-25%). The observed link between ROS production, adaptive antioxidant defense mechanisms, and peak oxygen consumption provides new insight into the correlation between ROS response pathways and muscle metabolic function.
Collapse
|
15
|
Lesch A, Cortés-Salazar F, Amstutz V, Tacchini P, Girault HH. Inkjet Printed Nanohydrogel Coated Carbon Nanotubes Electrodes For Matrix Independent Sensing. Anal Chem 2015; 87:1026-33. [DOI: 10.1021/ac503748g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Andreas Lesch
- Laboratoire
d’Electrochimie Physique et Analytique, École Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland
| | - Fernando Cortés-Salazar
- Laboratoire
d’Electrochimie Physique et Analytique, École Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland
| | - Véronique Amstutz
- Laboratoire
d’Electrochimie Physique et Analytique, École Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland
| | | | - Hubert H. Girault
- Laboratoire
d’Electrochimie Physique et Analytique, École Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland
| |
Collapse
|
16
|
Large scale inkjet-printing of carbon nanotubes electrodes for antioxidant assays in blood bags. J Electroanal Chem (Lausanne) 2014. [DOI: 10.1016/j.jelechem.2013.12.027] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|