1
|
Walski T, Grzeszczuk-Kuć K, Mehl J, Bohara R, Trochanowska-Pauk N, Detyna J, Komorowska M. Biphasic dose-response and effects of near-infrared photobiomodulation on erythrocytes susceptibility to oxidative stress in vitro. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2024; 257:112958. [PMID: 38875890 DOI: 10.1016/j.jphotobiol.2024.112958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 05/25/2024] [Accepted: 06/10/2024] [Indexed: 06/16/2024]
Abstract
The effect of simultaneous application of tert-butyl hydroperoxide (tBHP) and polychromatic near-infrared (NIR) radiation on bovine blood was examined to determine whether NIR light decreases the susceptibility of red blood cells (RBCs) to oxidative stress. The study assessed various exposure methods, wavelength ranges, and optical filtering types. Continuous NIR exposure revealed a biphasic response in cell-free hemoglobin changes, with antioxidative effects observed at low fluences and detrimental effects at higher fluences. Optimal exposure duration was identified between 60 s and 15 min. Protective effects were also tested across wavelengths in the range of 750-1100 nm, with all of them reducing hemolysis, notably at 750 nm, 875 nm, and 900 nm. Comparing broadband NIR and far-red light (750 nm) showed no significant difference in hemolysis reduction. Pulse-dosed NIR irradiation allowed safe increases in radiation dose, effectively limiting hemolysis at higher doses where continuous exposure was harmful. These findings highlight NIR photobiomodulation's potential in protecting RBCs from oxidative stress and will be helpful in the effective design of novel medical therapeutic devices.
Collapse
Affiliation(s)
- Tomasz Walski
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology, Wrocław, Poland.
| | - Karolina Grzeszczuk-Kuć
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology, Wrocław, Poland
| | - Joanna Mehl
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology, Wrocław, Poland
| | - Raghvendra Bohara
- CÚRAM, SFI Research Centre for Medical Devices, National University of Ireland Galway, Ireland
| | - Natalia Trochanowska-Pauk
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland
| | - Jerzy Detyna
- Department of Mechanics, Materials and Biomedical Engineering, Faculty of Mechanical Engineering, Wrocław University of Science and Technology, Wrocław, Poland
| | - Małgorzata Komorowska
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology, Wrocław, Poland
| |
Collapse
|
2
|
Ng KS, Tan SA, Bok CY, Loh KE, Ismail IS, Yue CS, Loke CF. Metabolomic Approach for Rapid Identification of Antioxidants in Clinacanthus nutans Leaves with Liver Protective Potential. Molecules 2022; 27:molecules27123650. [PMID: 35744776 PMCID: PMC9230150 DOI: 10.3390/molecules27123650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 05/29/2022] [Accepted: 05/31/2022] [Indexed: 01/25/2023] Open
Abstract
Antioxidants are currently utilized to prevent the occurrence of liver cancer in non-alcoholic fatty liver disease (NAFLD) patients. Clinacanthus nutans possesses anti-oxidative and anti-inflammatory properties that could be an ideal therapy for liver problems. The objective of this study is to determine the potential antioxidative compounds from the C. nutans leaves (CNL) and stems (CNS). Chemical- and cell-based antioxidative assays were utilized to evaluate the bioactivities of CNS and CNL. The NMR metabolomics approach assisted in the identification of contributing phytocompounds. Based on DPPH and ABTS radical scavenging activities, CNL demonstrated stronger radical scavenging potential as compared to CNS. The leaf extract also recorded slightly higher reducing power properties. A HepG2 cell model system was used to investigate the ROS reduction potential of these extracts. It was shown that cells treated with CNL and CNS reduced innate ROS levels as compared to untreated controls. Interestingly, cells pre-treated with both extracts were also able to decrease ROS levels in cells induced with oxidative stress. CNL was again the better antioxidant. According to multivariate data analysis of the 1H NMR results, the main metabolites postulated to contribute to the antioxidant and hepatoprotective abilities of leaves were clinacoside B, clinacoside C and isoschaftoside, which warrants further investigation.
Collapse
Affiliation(s)
- Kai Song Ng
- Department of Bioscience, Faculty of Applied Sciences, Tunku Abdul Rahman University College, Setapak, Kuala Lumpur 53300, Malaysia
| | - Sheri-Ann Tan
- Department of Bioscience, Faculty of Applied Sciences, Tunku Abdul Rahman University College, Setapak, Kuala Lumpur 53300, Malaysia
| | - Chui Yin Bok
- Department of Bioscience, Faculty of Applied Sciences, Tunku Abdul Rahman University College, Setapak, Kuala Lumpur 53300, Malaysia
| | - Khye Er Loh
- Department of Bioscience, Faculty of Applied Sciences, Tunku Abdul Rahman University College, Setapak, Kuala Lumpur 53300, Malaysia
| | - Intan Safinar Ismail
- Natural Medicine and Product Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Chen Son Yue
- Department of Physical Science, Faculty of Applied Sciences, Tunku Abdul Rahman University College, Setapak, Kuala Lumpur 53300, Malaysia
| | - Chui Fung Loke
- Department of Bioscience, Faculty of Applied Sciences, Tunku Abdul Rahman University College, Setapak, Kuala Lumpur 53300, Malaysia
| |
Collapse
|
3
|
The colon epithelium as a target for the intracellular antioxidant activity of hydroxytyrosol: A study on rat colon explants. J Funct Foods 2020. [DOI: 10.1016/j.jff.2019.103604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
|
4
|
Detterich JA, Liu H, Suriany S, Kato RM, Chalacheva P, Tedla B, Shah PM, Khoo MC, Wood JC, Coates TD, Milne GL, Oh JY, Patel RP, Forman HJ. Erythrocyte and plasma oxidative stress appears to be compensated in patients with sickle cell disease during a period of relative health, despite the presence of known oxidative agents. Free Radic Biol Med 2019; 141:408-415. [PMID: 31279092 PMCID: PMC6750280 DOI: 10.1016/j.freeradbiomed.2019.07.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 06/03/2019] [Accepted: 07/03/2019] [Indexed: 01/17/2023]
Abstract
Sickle cell disease (SCD) is a monogenetic disease that results in the formation of hemoglobin S. Due to more rapid oxidation of hemoglobin S due to intracellular heme and adventitious iron in SCD, it has been thought that an inherent property of SCD red cells would be an imbalance in antioxidant defenses and oxidant production. Less deformable and fragile RBC in SCD results in intravascular hemolysis and release of free hemoglobin (PFHb) in the plasma, which might be expected to produce oxidative stress in the plasma. Thus, we aimed to characterize intracellular and vascular oxidative stress in whole blood and plasma samples from adult SCD patients and controls recruited into a large study of SCD at Children's Hospital of Los Angeles. We evaluated the cellular content of metHb and several components of the antioxidant system in RBC as well as oxidation of GSH and Prx-2 oxidation in RBC after challenge with hydroperoxides. Plasma markers included PFHb, low molecular weight protein bound heme (freed heme), hemopexin, isoprostanes, and protein carbonyls. While GSH was slightly lower in SCD RBC, protein carbonyls, NADH, NAD+ and total NADP+ + NADPH were not different. Furthermore, GSH or Prx-2 oxidation was not different after oxidative challenge in SCD vs. Control. Elevated freed heme and PFHb had a significant negative, non-linear association with hemopexin. There appeared to be a threshold effect for hemopexin (200 μg/ml), under which the freed heme rose acutely. Plasma F2-isoprostanes were not significantly elevated in SCD. Despite significant release of Hb and elevation of freed heme in SCD when hemopexin was apparently saturated, there was no clear indication of uncompensated vascular oxidative stress. This somewhat surprising result, suggests that oxidative stress is well compensated in RBCs and plasma during a period of relative health.
Collapse
Affiliation(s)
- Jon A Detterich
- Division of Cardiology, Children's Hospital of Los Angeles, USA.
| | - Honglei Liu
- Division of Cardiology, Children's Hospital of Los Angeles, USA
| | - Silvie Suriany
- Division of Cardiology, Children's Hospital of Los Angeles, USA; Division of Hematology, Children's Hospital of Los Angeles, USA
| | | | | | - Bruke Tedla
- Division of Cardiology, Children's Hospital of Los Angeles, USA
| | - Payal M Shah
- Division of Hematology, Children's Hospital of Los Angeles, USA
| | - Michael C Khoo
- Viterbi School of Engineering, University of Southern California, USA
| | - John C Wood
- Division of Cardiology, Children's Hospital of Los Angeles, USA; Viterbi School of Engineering, University of Southern California, USA
| | - Thomas D Coates
- Division of Hematology, Children's Hospital of Los Angeles, USA
| | - Ginger L Milne
- Division of Clinical Pharmacology, Vanderbilt University, USA
| | - Joo-Yeun Oh
- Department of Pathology and Center for Free Radical Biology, University of Alabama School of Medicine, USA
| | - Rakesh P Patel
- Department of Pathology and Center for Free Radical Biology, University of Alabama School of Medicine, USA
| | - Henry Jay Forman
- Leonard Davis School of Gerontology, University of Southern California, USA
| |
Collapse
|
5
|
Terpilovskii MA, Khmelevskoy DA, Shchegolev BF, Surma SV, Stefanov VE, Sukharzhevskii SM, Goncharov NV. A Hypomagnetic Field Modulates the Susceptibility of Erythrocytes to tert-Butyl Hydroperoxide in Rats. Biophysics (Nagoya-shi) 2019. [DOI: 10.1134/s0006350919030230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
|
6
|
Sajewicz W, Zalewska M, Milnerowicz H. Comparative study on thiol drugs' effect on tert-butyl hydroperoxide induced luminol chemiluminescence in human erythrocyte lysate and hemoglobin oxidation. Toxicol In Vitro 2014; 29:148-54. [PMID: 25308193 DOI: 10.1016/j.tiv.2014.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Revised: 08/28/2014] [Accepted: 09/05/2014] [Indexed: 11/26/2022]
Abstract
The current studies have investigated the effect of heterocyclic drugs with the single thiol group (thiamazole, mercaptopurine) and dithiol aliphatic drugs (dimercaptosuccinic acid, dithiothreitol) under oxidative stress conditions, using tert-butyl hydroperoxide (t-BuOOH), in human erythrocyte lysate with the luminol-enhanced chemiluminescence technique. Knowing that oxidative processes induced by t-BuOOH are triggered by (oxy)hemoglobin (Hb), the effect of different thiol drugs (RSH) on isolated human Hb oxidation to methemoglobin (MHb) and hemichromes (HChr) was further considered. Three types of chemiluminescence curves, fitting to logistic-exponential model, have been revealed under influence of RSH. Structure of the data (MHb and HChr production, and free radical activity of RSH) in Principal Component Analysis visualization and kinetic profiles of chemiluminescence integrate information in terms of the diversity of RSH reaction mechanisms depending on the specific molecular context of the given thiol: aliphatic or aromatic nature as well as the number and position of the -SH groups in the molecule. The study conducted in presented in vitro systems indicates the potential role of thiol drugs mediated toxicity in an oxidative stress dependent mechanism.
Collapse
Affiliation(s)
- Waldemar Sajewicz
- Department of Biomedical and Environmental Analyses, Wroclaw Medical University, Borowska St. 211, PL 50-556 Wroclaw, Poland.
| | - Marta Zalewska
- Department of Biomedical and Environmental Analyses, Wroclaw Medical University, Borowska St. 211, PL 50-556 Wroclaw, Poland
| | - Halina Milnerowicz
- Department of Biomedical and Environmental Analyses, Wroclaw Medical University, Borowska St. 211, PL 50-556 Wroclaw, Poland
| |
Collapse
|
7
|
Fernandes MS, Rissi TT, Zuravski L, Mezzomo J, Vargas CR, Folmer V, Soares FAA, Manfredini V, Ahmed M, Puntel RL. Oxidative stress and labile plasmatic iron in anemic patients following blood therapy. World J Exp Med 2014; 4:38-45. [PMID: 25254188 PMCID: PMC4172702 DOI: 10.5493/wjem.v4.i3.38] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 06/19/2014] [Accepted: 07/29/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To determine the plasmatic iron content and evaluate the oxidative stress (OS) markers in subjects receiving blood therapy.
METHODS: Thirty-nine individuals with unspecified anemia receiving blood transfusions and 15 healthy subjects were included in the study. Anemic subjects were divided into three subgrouP: (1) those that received up to five blood transfusions (n = 14); (2) those that received from five to ten transfusions (n = 11); and (3) those that received more than ten transfusions (n = 14). Blood samples were collected by venous arm puncture and stored in tubes containing heparin. The plasma and cells were separated by centrifugation and subsequently used for analyses. Statistical analyses were performed using Kruskal-Wallis analysis of variance followed by Dunn’s multiple comparison tests when appropriate.
RESULTS: The eletrophoretic hemoglobin profiles of the subjects included in this study indicated that no patients presented with hemoglobinopathy. Labile plasmatic iron, ferritin, protein carbonyl, thiobarbituric acid-reactive substances (TBARS) and dichlorofluorescein diacetate oxidation were significantly higher (P < 0.05), whereas total thiol levels were significantly lower (P < 0.05) in transfused subjects compared to controls. Additionally, the activity of catalase, superoxide dismutase and glutathione peroxidase were significantly lower in the transfused subjects (P < 0.05). Antioxidant enzyme activities and total thiol levels were positively correlated (P < 0.05), and negatively correlated with the levels of protein carbonyl and TBARS (P < 0.05). In contrast, protein carbonyl and TBARS were positively correlated (P < 0.05). Altogether, these data confirm the involvement of OS in patients following therapy with repeated blood transfusions.
CONCLUSION: Our data reveal that changes in OS markers are correlated with levels of labile plasmatic iron and ferritin and the number of transfusions.
Collapse
|
8
|
Dremza IK, Lapshina EA, Kujawa J, Zavodnik IB. Oxygen-related processes in red blood cells exposed totert-butyl hydroperoxide. Redox Rep 2013; 11:185-92. [PMID: 16984742 DOI: 10.1179/135100006x116709] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The correlation between the oxidative processes in tert-butyl hydroperoxide (tBHP)-exposed red blood cells and the reactions of oxygen consumption and release were investigated. Red blood cell exposure to tBHP resulted in transient oxygen release followed by oxygen consumption. The oxygen release in red blood cells was associated with intracellular oxyhaemoglobin oxidation. The oxygen consumption proceeded in parallel with free radical generation, as registered by chemiluminescence, but not to membrane lipid peroxidation. The oxygen consumption was also observed in membrane-free haemolyzates. The order of the organic hydroperoxide-induced reaction of oxygen release with respect to the oxidant (tBHP) was estimated to be 0.9 +/- 0.1 and that of the oxygen consumption reaction was determined to be 2.4 +/- 0.2. The apparent activation energy values of the oxygen release and oxygen consumption were found to be 107.5 +/- 18.5 kJ/mol and 71.0 +/- 12.5 kJ/mol, respectively. The apparent pKa value for the functional group(s) regulating the cellular oxyHb interaction with the oxidant in tBHP-treated red blood cells was estimated to be 6.7 +/- 0.2 and corresponded to that of distal histidine protonation in haemoprotein. A strong dependence of tBHP-induced lipid peroxidation on the oxygen concentration in a red blood cell suspension was observed (P50 = 32 +/- 3 mmHg). This dependence correlated with the oxygen dissociation curve of cellular haemoglobin. The order of the membrane lipid peroxidation reaction with respect to oxygen was found to be 0.5 +/- 0.1. We can conclude that the intensity of the biochemical process of membrane lipid peroxidation in tBHP-exposed erythrocytes is controlled by small changes in such physiological parameters as the oxygen pressure and oxygen affinity of cellular haemoglobin. Neither GSH nor oxyhaemoglobin oxidation depended on oxygen pressure.
Collapse
Affiliation(s)
- I K Dremza
- Institute of Biochemistry, National Academy of Sciences of Belarus, Grodno, Belarus
| | | | | | | |
Collapse
|
9
|
Henneberg R, Otuki MF, Furman AEF, Hermann P, do Nascimento AJ, Leonart MSS. Protective effect of flavonoids against reactive oxygen species production in sickle cell anemia patients treated with hydroxyurea. Rev Bras Hematol Hemoter 2013; 35:52-5. [PMID: 23580885 PMCID: PMC3621636 DOI: 10.5581/1516-8484.20130015] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Accepted: 09/03/2012] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE The aim of this study was to evaluate the protective effects of quercetin, rutin, hesperidin and myricetin against reactive oxygen species production with the oxidizing action of tert-butylhydroperoxide in erythrocytes from normal subjects and sickle cell anemia carriers treated with hydroxyurea. METHODS Detection of intracellular reactive oxygen species was carried out using a liposoluble probe, 2',7'-dichlorfluorescein-diacetate (DCFH-DA). A 10% erythrocyte suspension was incubated with flavonoids (quercetin, rutin, hesperidin or myricetin; 30, 50, and 100 µmol/L), and then incubated with tert-butylhydroperoxide (75 µmol/L). Untreated samples were used as controls. RESULTS Red blood cell exposure to tert-butylhydroperoxide resulted in significant increases in the generation of intracellular reactive oxygen species compared to basal levels. Reactive oxygen species production was significantly inhibited when red blood cells were pre-incubated with flavonoids, both in normal individuals and in patients with sickle cell anemia. Quercetin and rutin had the highest antioxidant activity, followed by myricetin and hesperidin. CONCLUSION Flavonoids, in particular quercetin and rutin, showed better antioxidant effects against damage caused by excess reactive oxygen species characteristic of sickle cell anemia. Results obtained with patients under treatment with hydroxyurea suggest an additional protective effect when associated with the use of flavonoids.
Collapse
|
10
|
Day and Night GSH and MDA Levels in Healthy Adults and Effects of Different Doses of Melatonin on These Parameters. Int J Cell Biol 2011; 2011:404591. [PMID: 21647290 PMCID: PMC3103893 DOI: 10.1155/2011/404591] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2011] [Accepted: 03/02/2011] [Indexed: 11/17/2022] Open
Abstract
The pineal secretory product melatonin (chemically, N-acetyl-5-methoxytryptamine) acts as an effective antioxidant and free-radical scavenger and plays an important role in several physiological functions such as sleep induction, immunomodulation, cardiovascular protection, thermoregulation, neuroprotection, tumor-suppression and oncostasis. Membrane lipid-peroxidation in terms of malondialdehyde (MDA) and intracellular glutathione (GSH) is considered to be a reliable marker of oxidative stress. The present work was undertaken to study the modulating effect of melatonin on MDA and GSH in human erythrocytes during day and night. Our observation shows the modulation of these two biomarkers by melatonin, and this may have important therapeutic implications. In vitro dose-dependent effect of melatonin also showed variation during day and night. We explain our observations on the basis of melatonin's antioxidative function and its effect on the fluidity of plasma membrane of red blood cells. Rhythmic modulation of MDA and GSH contents emphasized the role of melatonin as an antioxidant and its function against oxidative stress.
Collapse
|
11
|
Sajewicz W. Effect of thiol drugs on tert-butyl hydroperoxide induced luminol chemiluminescence in human erythrocytes, erythrocyte lysate, and erythrocyte membranes. Chem Biol Interact 2010; 186:144-51. [DOI: 10.1016/j.cbi.2010.04.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2010] [Revised: 04/19/2010] [Accepted: 04/19/2010] [Indexed: 10/19/2022]
|
12
|
Lisovskaya IL, Shcherbachenko IM, Volkova RI, Ataullakhanov FI. Clotrimazole enhances lysis of human erythrocytes induced by t-BHP. Chem Biol Interact 2009; 180:433-9. [PMID: 19394317 DOI: 10.1016/j.cbi.2009.04.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2009] [Revised: 03/31/2009] [Accepted: 04/14/2009] [Indexed: 11/18/2022]
Abstract
Clotrimazole (CLT) is an antifungal and antimalarial agent also effective as a Gardos channel inhibitor. In addition, CLT possesses antitumor properties. Recent data provide evidence that CLT forms a complex with heme (hemin), which produces a more potent lytic effect than heme alone. This study addressed the effect of CLT on the lysis of normal human erythrocytes induced by tert-butyl hydroperoxide (t-BHP). For the first time, it was shown that 10 microM CLT significantly enhanced the lytic effect of t-BHP on erythrocytes in both Ca(2+)-containing and Ca(2+)-free media, suggesting that the effect is not related to Gardos channels. CLT did not affect the rate of free radical generation, the kinetics of GSH degradation, methemoglobin formation and TBARS generation; therefore, we concluded that CLT does not cause additional oxidative damage to erythrocytes treated with t-BHP. It is tempted to speculate that CLT enhances t-BHP-induced changes in erythrocyte volume and lysis largely by forming a complex with hemin released during hemoglobin oxidation in erythrocytes: the CLT-hemin complex destabilizes the cell membrane more potently than hemin alone. If so, the effect of CLT on cell membrane damage during free-radical oxidation may be used to increase the efficacy of antitumor therapy.
Collapse
Affiliation(s)
- Irene L Lisovskaya
- National Scientific Centre for Hematology of Russian Academy of Medical Sciences, Russia. irene
| | | | | | | |
Collapse
|
13
|
Borges CL, Cecchini R, Tatakihara VLH, Malvezi AD, Yamada-Ogatta SF, Rizzo LV, Pinge-Filho P. 5-Lipoxygenase plays a role in the control of parasite burden and contributes to oxidative damage of erythrocytes in murine Chagas’ disease. Immunol Lett 2009; 123:38-45. [DOI: 10.1016/j.imlet.2009.02.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2008] [Revised: 01/27/2009] [Accepted: 02/05/2009] [Indexed: 11/27/2022]
|
14
|
Schiar VPP, dos Santos DB, Paixão MW, Nogueira CW, Rocha JBT, Zeni G. Human erythrocyte hemolysis induced by selenium and tellurium compounds increased by GSH or glucose: A possible involvement of reactive oxygen species. Chem Biol Interact 2009; 177:28-33. [DOI: 10.1016/j.cbi.2008.10.007] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2008] [Revised: 10/03/2008] [Accepted: 10/03/2008] [Indexed: 11/26/2022]
|
15
|
Chaves MAF, Leonart MSS, do Nascimento AJ. Oxidative process in erythrocytes of individuals with hemoglobin S. ACTA ACUST UNITED AC 2008; 13:187-92. [PMID: 18702879 DOI: 10.1179/102453308x343356] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
The understanding of the oxidative stress mechanisms helps to explain many of the processes of cellular lesion and death, especially those related to the hemolytic diseases. Sickle cell anemia, thalassemias and G6-PD deficiency are among the more frequent genetic anomalies accompanied by oxidative stress. In the sickle cells, one of the factors that predisposes to the hemolytic process is the oxidative degradation of the hemoglobin S due to its deoxigenation leading to hemichrome formation and precipitation as Heinz bodies. The oxidative stress contributes to the sickle process and shortening of the erythrocyte survival. Here we analyzed the oxidative process in erythrocytes of patients with two different genotypes for HbS (AS and SS). Units of blood from donors of the Center of Hematology and Hemotherapy of Paraná (HEMEPAR), from normal individuals (AA) and from heterozygote individuals (AS), and venous blood collected from patients with sickle cell anemia (SS) were analyzed. In order to evaluate the protective action of the vitamins C and E in oxidative stress, erythrocytes were treated with antioxidant substances, vitamin C and vitamin E, and then treated with the oxidant tert-butilhydroperoxide (TBHP). The oxidative action induced by TBHP was observed in erythrocytes AA<AS<SS, by the increase in the content of Heinz bodies, methemoglobin, hemolysis, GSH depletion and lowering activities of the enzymes G6-PD and GR. The protective actions of the vitamins C and E for the oxidative stress induced by TBHP were observed for the erythrocytes in the lowering Heinz bodies, methemoglobin, hemolysis, and partial recovery of GSH more efficiently in AS and SS erythrocytes. Recovery was not observed in the levels of the activities of the enzymes G6-PD and GR, under the vitamins actions. The results obtained confirmed the higher susceptibility of the sickle erythrocyte to oxidation which necessitates precaution in the transfusion adequacy of AS erythrocytes. On the other hand, the protective effect of the vitamins C and E over the oxidative stress observed in erythrocytes AS and SS open perspectives for their use for treatment of patients with sickle cell anemias, as well as in the preservation of transfusional erythrocyte bag units.
Collapse
Affiliation(s)
- Michele Ana Flores Chaves
- Programa de Pós-Graduação em Ciências Farmacêuticas da Universidade Federal do Paraná, Avenida Lothário Meissner, 3400, Jardim Botânico, CEP 80210-170, Curitiba, PR, Brazil
| | | | | |
Collapse
|
16
|
Modulation of RBC volume distributions by oxidants (phenazine methosulfate and tert-butyl hydroperoxide): Role of Gardos channel activation. Bioelectrochemistry 2008; 73:49-54. [DOI: 10.1016/j.bioelechem.2008.04.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2007] [Revised: 03/12/2008] [Accepted: 04/07/2008] [Indexed: 11/22/2022]
|
17
|
Dafre AL, Brandão TA, Reischl E. Involvement of vertebrate hemoglobin in antioxidant protection: chicken blood as a model. CAN J ZOOL 2007. [DOI: 10.1139/z07-020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Redox balance can be described as the equilibrium between oxidative and reductive forces within the cell. These forces control several cellular events, including the modulation of redox-sensitive receptors and signaling pathways. In cells, glutathione is the major non-protein thiol and is considered the main redox buffer. The ratio between the oxidized (GSSG) and reduced (GSH) forms reflects the cellular redox balance. Reactive protein thiols, including vertebrate hemoglobin (Hb), have been proposed as effective antioxidants that can contribute to the redox balance. To further explore this possibility, chicken ( Gallus gallus (L., 1758)) blood was used as a model system. The use of known oxidants (hydroperoxides, diamide, and a system generating reactive oxygen species) originated a pattern of glutathiolation in chicken erythrocytes that was fully reversed after removal of the oxidant, this being consistent with a physiological response. The glutathiolation sequence correlates to kinetic data on chicken Hb cysteine reactivity. The major chicken hemoglobin (Hb A) is responsible for most of the glutathiolated protein where the presence of externally positioned and fast-reacting cysteines is a contributing factor. The antioxidant potential of fast-reacting Hb cysteines is in line with the conservation of cysteine residues in Hb stereochemical positions in more than 95% of the available avian Hb sequences. This may represent an evolutionary trend for the antioxidant function of externally positioned and reactive cysteines in abundant proteins.
Collapse
Affiliation(s)
- Alcir Luiz Dafre
- Laboratório de Defesas Celulares, Departamento de Ciências Fisiológicas, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil
- Laboratório de Catálise e Fenômenos Interfaciais, Departamento de Química, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil
- Formerly from Curso de Pós-Graduação em Fisiologia and Departamento de Biofísica, Universidade Federal do Rio Grande do Sul, 90050-170 Porto Alegre, RS, Brazil
| | - Tiago A.S. Brandão
- Laboratório de Defesas Celulares, Departamento de Ciências Fisiológicas, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil
- Laboratório de Catálise e Fenômenos Interfaciais, Departamento de Química, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil
- Formerly from Curso de Pós-Graduação em Fisiologia and Departamento de Biofísica, Universidade Federal do Rio Grande do Sul, 90050-170 Porto Alegre, RS, Brazil
| | - Evaldo Reischl
- Laboratório de Defesas Celulares, Departamento de Ciências Fisiológicas, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil
- Laboratório de Catálise e Fenômenos Interfaciais, Departamento de Química, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil
- Formerly from Curso de Pós-Graduação em Fisiologia and Departamento de Biofísica, Universidade Federal do Rio Grande do Sul, 90050-170 Porto Alegre, RS, Brazil
| |
Collapse
|