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Li J, LoBue A, Heuser SK, Cortese-Krott MM. Determination of Nitric Oxide and Its Metabolites in Biological Tissues Using Ozone-Based Chemiluminescence Detection: A State-of-the-Art Review. Antioxidants (Basel) 2024; 13:179. [PMID: 38397777 PMCID: PMC10886078 DOI: 10.3390/antiox13020179] [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: 12/11/2023] [Revised: 01/19/2024] [Accepted: 01/21/2024] [Indexed: 02/25/2024] Open
Abstract
Ozone-based chemiluminescence detection (CLD) has been widely applied for determining nitric oxide (•NO) and its derived species in many different fields, such as environmental monitoring and biomedical research. In humans and animals, CLD has been applied to determine exhaled •NO and •NO metabolites in plasma and tissues. The main advantages of CLD are high sensitivity and selectivity for quantitative analysis in a wide dynamic range. Combining CLD with analytical separation techniques like chromatography allows for the analytes to be quantified with less disturbance from matrix components or impurities. Sampling techniques like microdialysis and flow injection analysis may be coupled to CLD with the possibility of real-time monitoring of •NO. However, details and precautions in experimental practice need to be addressed and clarified to avoid wrong estimations. Therefore, using CLD as a detection tool requires a deep understanding of the sample preparation procedure and chemical reactions used for liberating •NO from its derived species. In this review, we discuss the advantages and pitfalls of CLD for determining •NO species, list the different applications and combinations with other analytical techniques, and provide general practical notes for sample preparation. These guidelines are designed to assist researchers in comprehending CLD data and in selecting the most appropriate method for measuring •NO species.
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Affiliation(s)
- Junjie Li
- Myocardial Infarction Research Laboratory, Department of Cardiology, Pulmonology, and Angiology, Medical Faculty, Heinrich-Heine-University, 40225 Düsseldorf, Germany; (J.L.); (A.L.); (S.K.H.)
| | - Anthea LoBue
- Myocardial Infarction Research Laboratory, Department of Cardiology, Pulmonology, and Angiology, Medical Faculty, Heinrich-Heine-University, 40225 Düsseldorf, Germany; (J.L.); (A.L.); (S.K.H.)
| | - Sophia K. Heuser
- Myocardial Infarction Research Laboratory, Department of Cardiology, Pulmonology, and Angiology, Medical Faculty, Heinrich-Heine-University, 40225 Düsseldorf, Germany; (J.L.); (A.L.); (S.K.H.)
| | - Miriam M. Cortese-Krott
- Myocardial Infarction Research Laboratory, Department of Cardiology, Pulmonology, and Angiology, Medical Faculty, Heinrich-Heine-University, 40225 Düsseldorf, Germany; (J.L.); (A.L.); (S.K.H.)
- CARID, Cardiovascular Research Institute Düsseldorf, Medical Faculty, Heinrich-Heine-University, 40225 Düsseldorf, Germany
- Department of Physiology and Pharmacology, Karolinska Institute, 17177 Stockholm, Sweden
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Abstract
Significance: Reactive sulfur and nitrogen species such as hydrogen sulfide (H2S) and nitric oxide (NO•) are ubiquitous cellular signaling molecules that play central roles in physiology and pathophysiology. A deeper understanding of these signaling pathways will offer new opportunities for therapeutic treatments and disease management. Recent Advances: Chemiluminescence methods have been fundamental in detecting and measuring biological reactive sulfur and nitrogen species, and new approaches are emerging for imaging these analytes in living intact specimens. Ozone-based and luminol-based chemiluminescence methods have been optimized for quantitative analysis of hydrogen sulfide and nitric oxide in biological samples and tissue homogenates, and caged luciferin and 1,2-dioxetanes are emerging as a versatile approach for monitoring and imaging reactive sulfur and nitrogen species in living cells and animal models. Critical Issues: This review article will cover the major chemiluminescence approaches for detecting, measuring, and imaging reactive sulfur and nitrogen species in biological systems, including a brief history of the development of the most established approaches and highlights of the opportunities provided by emerging approaches. Future Directions: Emerging chemiluminescence approaches offer new opportunities for monitoring and imaging reactive sulfur and nitrogen species in living cells, animals, and human clinical samples. Widespread adoption and translation of these approaches, however, requires an emphasis on rigorous quantitative methods, reproducibility, and effective technology transfer. Antioxid. Redox Signal. 36, 337-353.
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Affiliation(s)
- Bo Li
- Department of Chemistry, Southern Methodist University, Dallas, Texas USA
| | - Yujin Lisa Kim
- Department of Chemistry, Southern Methodist University, Dallas, Texas USA
| | - Alexander Ryan Lippert
- Department of Chemistry, Southern Methodist University, Dallas, Texas USA.,Center for Drug Discovery, Design, and Delivery (CD), Southern Methodist University, Dallas, Texas USA
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Santos-Lobato BL, Bortolanza M, Pinheiro LC, Batalhão ME, Pimentel ÂV, Capellari-Carnio E, Del-Bel EA, Tumas V. Levodopa-induced dyskinesias in Parkinson's disease increase cerebrospinal fluid nitric oxide metabolites' levels. J Neural Transm (Vienna) 2021; 129:55-63. [PMID: 34940921 DOI: 10.1007/s00702-021-02447-4] [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: 09/21/2021] [Accepted: 11/24/2021] [Indexed: 10/19/2022]
Abstract
Levodopa-induced dyskinesia (LID) is a common complication of Parkinson's disease (PD) therapy. Nitric oxide in the central nervous system may have a role in its pathophysiology. The present work investigates plasma and CSF levels of nitric oxide metabolites nitrite and nitrate in patients with PD, LID, and healthy control. We measured plasma and CSF nitrite and nitrate levels in patients with PD with and without LID and in healthy controls. The levels of plasma and CSF nitrite and nitrate were measured by ozone-based chemiluminescence. Sixty-seven participants were enrolled. CSF nitrite levels in patients with PD and LID were higher than in patients with PD without LID and healthy controls. CSF/plasma ratio of nitrite was higher in patients with PD and LID than in patients with PD without LID. The CSF/plasma ratio of nitrite in patients with PD and LID was higher than 1, indicating an intrathecal production of NO in patients with this motor complication. There was an increase in nitrate levels of CSF and CSF/plasma ratio of nitrate in patients with PD and LID compared to the healthy controls. Sex, age at evaluation, disease duration, and levodopa equivalent daily doses, as well as processing and storage time, did not critically influence these results. The present study demonstrated an increase in nitrite and nitrate levels in the central nervous system of patients with PD and LID. This finding strengthens the role of NO on LID pathophysiology.
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Affiliation(s)
- Bruno L Santos-Lobato
- Department of Neurosciences and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Ribeirão Prêto, SP, 14049-900, Brazil.,Laboratory of Experimental Neuropathology, Federal University of Pará, Belém, Brazil
| | - Mariza Bortolanza
- Department of Basic and Oral Biology, Faculty of Odontology of Ribeirão Preto, University of São Paulo, Ribeirão Prêto, SP, Brazil
| | - Lucas César Pinheiro
- Nursing School of Ribeirão Preto, University of São Paulo, Ribeirão Prêto, SP, Brazil
| | - Marcelo E Batalhão
- Nursing School of Ribeirão Preto, University of São Paulo, Ribeirão Prêto, SP, Brazil
| | - Ângela V Pimentel
- Department of Neurosciences and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Ribeirão Prêto, SP, 14049-900, Brazil
| | | | - Elaine A Del-Bel
- Department of Basic and Oral Biology, Faculty of Odontology of Ribeirão Preto, University of São Paulo, Ribeirão Prêto, SP, Brazil
| | - Vitor Tumas
- Department of Neurosciences and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Ribeirão Prêto, SP, 14049-900, Brazil.
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4
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Bizjak DA, Grolle A, Urena JAN, Bloch W, Deitenbeck R, Grau M. Monitoring of RBC rheology after cryopreservation to detect autologous blood doping in vivo? A pilot study. Clin Hemorheol Microcirc 2020; 76:367-379. [PMID: 32675400 DOI: 10.3233/ch-200887] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND: Autologous blood doping (ABD) is applied to improve performance capacity. ABD includes blood donation, red blood cell (RBC) storage at –80°C and re-infusion prior to or during competition. ABD is not directly detectable with current detection techniques. OBJECTIVE: Since cryopreservation is known to affect RBC physiology in vitro, the aim of the study was to examine whether these alterations are detectable in vivo. METHODS: Blood from six healthy male donors was transferred into conventional blood bags, cryopreserved, stored for 18 weeks at –80°C and re-infused with a RBC volume corresponding to ∼4% of total blood volume into respective donor. RBC physiology parameters were measured before blood donation/re-infusion, and 0/1/2/6/24/48/72 h and 1 w post re-infusion. RESULTS: RBC parameters and age markers were unaffected during intervention. RBC deformability increased from pre-blood-sampling to pre-re-infusion while deformability and viscosity values remained unaltered post re-infusion. RBC nitric oxide associated analytes, metabolic parameters and electrolyte concentrations remained unaffected. CONCLUSIONS: The data of this pilot study indicate that the increase in RBC deformability might be related to neoformation of RBC after blood donation. The lack of changes in tested parameters might be related to the low re-infused RBC volume which might explain differences to in vitro results.
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Affiliation(s)
- Daniel A. Bizjak
- German Sport University Cologne, Department of Molecular and Cellular Sports Medicine, Cologne, Germany
| | - Andreas Grolle
- German Red Cross Blood Donation Service West, Hagen, Germany
| | | | - Wilhelm Bloch
- German Sport University Cologne, Department of Molecular and Cellular Sports Medicine, Cologne, Germany
| | | | - Marijke Grau
- German Sport University Cologne, Department of Molecular and Cellular Sports Medicine, Cologne, Germany
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Bizjak DA, Tomschi F, Bales G, Nader E, Romana M, Connes P, Bloch W, Grau M. Does endurance training improve red blood cell aging and hemorheology in moderate-trained healthy individuals? JOURNAL OF SPORT AND HEALTH SCIENCE 2020; 9:595-603. [PMID: 33308809 PMCID: PMC7749247 DOI: 10.1016/j.jshs.2019.02.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 10/15/2018] [Accepted: 11/20/2018] [Indexed: 05/23/2023]
Abstract
OBJECTIVE To examine the impact of a 6-week endurance training on red blood cell (RBC) aging and deformability of healthy participants to detect possible improved hemorheological and performance-related adaptations. METHODS A total of 31 participants (17 females and 14 males) performed a 6-week moderate training protocol (three 1-h running sessions per week at 70% of maximal heart rate). Blood was sampled before and after the training. RBCs from each participant were fractioned according to density and age into 4 RBC subfractions. Subfractions were examined for changes of RBC properties, including aging distribution, RBC deformability, RBC microparticles, and phosphatidylserine concentrations. RBC and plasma nitrite levels were measured as indicators of nitric oxide metabolism. RESULTS Aerobic performance, peak oxygen consumption, ventilatory thresholds, velocity at the aerobic-anaerobic threshold, and lactate at exhaustion improved after training. The relative amount of both young RBCs and old RBCs increased, and the amount of the main RBC fraction decreased. Phosphatidylserine externalization and RBC-derived microparticles decreased. Overall deformability expressed as shear stress required to achieve half-maximum deformation to theoretical maximal elongation index at infinite shear stress improved in unfractioned RBCs (p < 0.001). Nitrite decreased in total (p = 0.001), young (p < 0.001), main (p < 0.001), and old (p = 0.020) aged RBCs and in plasma (p = 0.002), but not in very old RBCs. CONCLUSION These results indicate that non-endurance-trained healthy participants benefit from a regular moderate running training program because performance-related parameters improve and a younger RBC population with improved RBC properties is induced, which might support oxygen supply in the microcirculation.
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Affiliation(s)
- Daniel A Bizjak
- Department of Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne 50933, Germany.
| | - Fabian Tomschi
- Department of Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne 50933, Germany
| | - Gunnar Bales
- Department of Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne 50933, Germany
| | - Elie Nader
- Laboratoire LIBM EA7424-Equipe "Biologie Vasculaire et du Globule Rouge", Université Claude Bernard Lyon 1, Villeurbanne 69100, France; Laboratoire d'Excellence du Globule Rouge GR-Ex, Paris 75015, France
| | - Marc Romana
- Laboratoire d'Excellence du Globule Rouge GR-Ex, Paris 75015, France; Université des Antilles, Inserm, Unité Biologie Intégrée du Globule Rouge, CHU de Pointe à Pitre, Pointe à Pitre, Guadeloupe 97157, France
| | - Philippe Connes
- Laboratoire LIBM EA7424-Equipe "Biologie Vasculaire et du Globule Rouge", Université Claude Bernard Lyon 1, Villeurbanne 69100, France; Laboratoire d'Excellence du Globule Rouge GR-Ex, Paris 75015, France; Institut Universitaire de France, Paris 75231, France
| | - Wilhelm Bloch
- Department of Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne 50933, Germany; The German Research Centre of Elite Sport, German Sport University Cologne, Cologne 50933, Germany
| | - Marijke Grau
- Department of Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne 50933, Germany
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6
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Nader E, Romana M, Guillot N, Fort R, Stauffer E, Lemonne N, Garnier Y, Skinner SC, Etienne-Julan M, Robert M, Gauthier A, Cannas G, Antoine-Jonville S, Tressières B, Hardy-Dessources MD, Bertrand Y, Martin C, Renoux C, Joly P, Grau M, Connes P. Association Between Nitric Oxide, Oxidative Stress, Eryptosis, Red Blood Cell Microparticles, and Vascular Function in Sickle Cell Anemia. Front Immunol 2020; 11:551441. [PMID: 33250889 PMCID: PMC7672038 DOI: 10.3389/fimmu.2020.551441] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 10/14/2020] [Indexed: 12/24/2022] Open
Abstract
Chronic hemolysis, enhanced oxidative stress, and decreased nitric oxide (NO) bioavailability promote vasculopathy in sickle cell anemia (SCA). Oxidative stress and NO are known to modulate eryptosis in healthy red blood cells (RBCs); however, their role in SCA eryptosis and their impact on the genesis of RBC-derived microparticles (RBC-MPs) remains poorly described. RBC-MPs could play a role in vascular dysfunction in SCA. The aims of this study were to evaluate the roles of oxidative stress and NO in eryptosis and RBC-MPs release, and to determine whether RBC-MPs could be involved in vascular dysfunction in SCA. Markers of eryptosis and oxidative stress, plasma RBC-MPs concentration and arterial stiffness were compared between SCA and healthy (AA) individuals. In-vitro experiments were performed to test: 1) the effects of oxidative stress (antioxidant: n-acetylcysteine (NAC); pro-oxidant: cumene hydroperoxide) and NO (NO donor: sodium nitroprusside (SNP); NO-synthase inhibitor (L-NIO)) on eryptosis, RBC deformability and RBC-MP genesis; 2) the effects of SCA/AA-RBC-MPs on human aortic endothelial cell (HAEC) inflammatory phenotype and TLR4 pathway. Eryptosis, RBC-MPs, oxidative stress and arterial stiffness were increased in SCA. NAC increased RBC deformability and decreased eryptosis and RBC-MPs release, while cumene did the opposite. SNP increased RBC deformability and limited eryptosis, but had no effect on RBC-MPs. L-NIO did not affect these parameters. Arterial stiffness was correlated with RBC-MPs concentration in SCA. RBC-MPs isolated directly from SCA blood increased adhesion molecules expression and the production of cytokines by HAEC compared to those isolated from AA blood. TLR4 inhibition alleviated these effects. Our data show that oxidative stress could promote eryptosis and the release of RBC-MPs that are potentially involved in macrovascular dysfunction in SCA.
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Affiliation(s)
- Elie Nader
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM) EA7424, Team « Vascular Biology and Red Blood Cell », Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France.,Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France
| | - Marc Romana
- Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France.,Université des Antilles, Pointe-à-Pitre, France.,Université de Paris, Paris, France
| | - Nicolas Guillot
- Laboratoire Carmen Inserm, Université Claude Bernard Lyon 1, Université de Lyon, Villeurbanne, France
| | - Romain Fort
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM) EA7424, Team « Vascular Biology and Red Blood Cell », Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France.,Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France.,Département de Médecine Interne, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Emeric Stauffer
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM) EA7424, Team « Vascular Biology and Red Blood Cell », Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France.,Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France.,Centre de Médecine du Sommeil et des Maladies Respiratoires, Hospices Civils de Lyon, Hôpital de la Croix Rousse, Lyon, France
| | - Nathalie Lemonne
- Unité Transversale de la Drépanocytose, Hôpital de Pointe-á-Pitre, Hôpital Ricou, Guadeloupe, France
| | - Yohann Garnier
- Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France.,Université des Antilles, Pointe-à-Pitre, France.,Université de Paris, Paris, France
| | - Sarah Chambers Skinner
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM) EA7424, Team « Vascular Biology and Red Blood Cell », Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France.,Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France
| | - Maryse Etienne-Julan
- Unité Transversale de la Drépanocytose, Hôpital de Pointe-á-Pitre, Hôpital Ricou, Guadeloupe, France
| | | | - Alexandra Gauthier
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM) EA7424, Team « Vascular Biology and Red Blood Cell », Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France.,Institut d'Hématologie et d'Oncologie Pédiatrique, Hospices Civils de Lyon, Lyon, France
| | - Giovanna Cannas
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM) EA7424, Team « Vascular Biology and Red Blood Cell », Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France.,Département de Médecine Interne, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | | | - Benoît Tressières
- Centre Investigation Clinique Antilles Guyane, 1424 Inserm, Academic Hospital of Pointe-á-Pitre, Pointe-á-Pitre, Guadeloupe, France
| | - Marie-Dominique Hardy-Dessources
- Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France.,Université des Antilles, Pointe-à-Pitre, France.,Université de Paris, Paris, France
| | - Yves Bertrand
- Institut d'Hématologie et d'Oncologie Pédiatrique, Hospices Civils de Lyon, Lyon, France
| | - Cyril Martin
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM) EA7424, Team « Vascular Biology and Red Blood Cell », Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France.,Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France
| | - Céline Renoux
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM) EA7424, Team « Vascular Biology and Red Blood Cell », Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France.,Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France.,Laboratoire de Biochimie et de Biologie Moléculaire, UF de Biochimie des Pathologies érythrocytaires, Centre de Biologie et de Pathologie Est, Hospices Civils de Lyon, Lyon, France
| | - Philippe Joly
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM) EA7424, Team « Vascular Biology and Red Blood Cell », Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France.,Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France.,Laboratoire de Biochimie et de Biologie Moléculaire, UF de Biochimie des Pathologies érythrocytaires, Centre de Biologie et de Pathologie Est, Hospices Civils de Lyon, Lyon, France
| | - Marijke Grau
- Molecular and Cellular Sport Medicine, Deutsche Sporthochschule Köln, Köln, Germany
| | - Philippe Connes
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM) EA7424, Team « Vascular Biology and Red Blood Cell », Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France.,Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France.,Institut Universitaire de France, Paris, France
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Härtel JA, Müller N, Herberg U, Breuer J, Bizjak DA, Bloch W, Grau M. Altered Hemorheology in Fontan Patients in Normoxia and After Acute Hypoxic Exercise. Front Physiol 2019; 10:1443. [PMID: 31824342 PMCID: PMC6883377 DOI: 10.3389/fphys.2019.01443] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 11/08/2019] [Indexed: 12/02/2022] Open
Abstract
Background The Fontan circulation is a unique palliation procedure for several congenital heart defects. Impaired exercise capacity has previously been demonstrated in these patients and also a higher risk for cardiopulmonary mortality. Hemorheology was shown to affect cardiopulmonary capacity and in turn to be affected by regular exercise and hypoxia but none of these have been investigated in Fontan patients so far. The aim of this study was to detect general differences in hemorheology in normoxia as well as possible altered hemorheological responses to hypoxia exposure and hypoxic exercise between Fontan patients and healthy controls. Methods and Findings 26 Fontan patients and 20 healthy controls performed an acute exercise test (AET) on a bicycle ergometer under hypoxia with ambient 15.2% oxygen saturation (sO2). Blood samples were taken at rest in normoxia (T0), at rest in hypoxia (T1), after maximum exhaustion in hypoxia (T2), and after 50 min recovery in normoxia (T3). Hemorheological and blood parameters were investigated. Additionally, arterial stiffness was tested at T0. Red blood cell (RBC) deformability, NOx, erythropoietin (EPO) concentration, RBC count, hemoglobin (Hb) concentration and hematocrit (hct) were significantly increased in Fontan patients compared to controls. Same was observed for arterial stiffness. No changes were observed for RBC aggregation, fibrinogen concentration, free radical levels and vascular endothelial growth factor (VEGF). Hypoxia exposure did not change parameters, whereas exercise in hypoxia increased aggregation and hct significantly in both groups. Fontan patients showed significantly increased aggregation-disaggregation balance compared to controls. Conclusion Acute hypoxia exposure and exercise under hypoxia might have similar impact on hemorheology in Fontan patients and controls and was clinically well tolerated. Nevertheless, exercise alters aggregation and possibly hemodynamics which requires special attention in Fontan patients.
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Affiliation(s)
- Julian Alexander Härtel
- Department of Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne, Germany.,Department for Pediatric Cardiology, University Hospital Bonn, Bonn, Germany
| | - Nicole Müller
- Department for Pediatric Cardiology, University Hospital Bonn, Bonn, Germany
| | - Ulrike Herberg
- Department for Pediatric Cardiology, University Hospital Bonn, Bonn, Germany
| | - Johannes Breuer
- Department for Pediatric Cardiology, University Hospital Bonn, Bonn, Germany
| | - Daniel Alexander Bizjak
- Department of Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Wilhelm Bloch
- Department of Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Marijke Grau
- Department of Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne, Germany
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8
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Grau M, Jerke M, Nader E, Schenk A, Renoux C, Collins B, Dietz T, Bizjak DA, Joly P, Bloch W, Connes P, Prokop A. Effect of acute exercise on RBC deformability and RBC nitric oxide synthase signalling pathway in young sickle cell anaemia patients. Sci Rep 2019; 9:11813. [PMID: 31413300 PMCID: PMC6694163 DOI: 10.1038/s41598-019-48364-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 08/02/2019] [Indexed: 01/29/2023] Open
Abstract
Sickle cell anaemia (SCA) is characterized by reduced red blood cell (RBC) deformability and nitric oxide (NO) bioavailability. The aim of the study was to investigate whether exercise might affect these parameters in SCA. SCA patients and healthy controls (AA) performed an acute submaximal exercise test until subjects reached the first ventilatory threshold (VT 1). Blood was sampled at rest and at VT 1. At rest, free haemoglobin level was higher and RBC count, haemoglobin and haematocrit were lower in SCA compared to AA. RBC deformability was lower in SCA. Exercise had no effect on the tested parameters. RBC NO level was higher in SCA compared to AA at rest and significantly decreased after exercise in SCA. This might be related to a reduction in RBC-NO synthase (RBC-NOS) activation which was only observed in SCA after exercise. Free radical levels were higher in SCA at rest but concentration was not affected by exercise. Marker for lipid peroxidation and antioxidative capacity were similar in SCA and AA and not affected by exercise. In conclusion, a single acute submaximal bout of exercise has no deleterious effects on RBC deformability or oxidative stress markers in SCA, and seems to modulate RBC-NOS signalling pathway.
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Affiliation(s)
- Marijke Grau
- German Sport University Cologne, Department of Molecular and Cellular Sports Medicine, Cologne, Germany.
| | - Max Jerke
- German Sport University Cologne, Department of Molecular and Cellular Sports Medicine, Cologne, Germany
| | - Elie Nader
- University of Lyon, University Claude Bernard Lyon 1, Interuniversity Laboratory of Human Movement Biology EA7424, "Vascular Biology and Red Blood Cell" team, Villeurbanne, France.,Laboratory of Excellence "GR-Ex", Paris, France
| | - Alexander Schenk
- German Sport University Cologne, Department of Molecular and Cellular Sports Medicine, Cologne, Germany
| | - Celine Renoux
- University of Lyon, University Claude Bernard Lyon 1, Interuniversity Laboratory of Human Movement Biology EA7424, "Vascular Biology and Red Blood Cell" team, Villeurbanne, France.,Laboratory of Excellence "GR-Ex", Paris, France.,East Biology Centre, UF "Biochemistry of Red Blood Cell Disease", Academic Hospital of Lyon, HCL, Lyon, France
| | - Bianca Collins
- German Sport University Cologne, Department of Molecular and Cellular Sports Medicine, Cologne, Germany
| | - Thomas Dietz
- German Sport University Cologne, Department of Molecular and Cellular Sports Medicine, Cologne, Germany
| | - Daniel Alexander Bizjak
- German Sport University Cologne, Department of Molecular and Cellular Sports Medicine, Cologne, Germany
| | - Philippe Joly
- University of Lyon, University Claude Bernard Lyon 1, Interuniversity Laboratory of Human Movement Biology EA7424, "Vascular Biology and Red Blood Cell" team, Villeurbanne, France.,Laboratory of Excellence "GR-Ex", Paris, France.,East Biology Centre, UF "Biochemistry of Red Blood Cell Disease", Academic Hospital of Lyon, HCL, Lyon, France
| | - Wilhelm Bloch
- German Sport University Cologne, Department of Molecular and Cellular Sports Medicine, Cologne, Germany
| | - Philippe Connes
- University of Lyon, University Claude Bernard Lyon 1, Interuniversity Laboratory of Human Movement Biology EA7424, "Vascular Biology and Red Blood Cell" team, Villeurbanne, France.,Laboratory of Excellence "GR-Ex", Paris, France
| | - Aram Prokop
- Children's Hospital Amsterdamer Straße Cologne; Clinic for Children and Youth Medicine, Paediatric Oncology/Haematology, Cologne, Germany
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Grau M, Cremer JM, Schmeichel S, Kunkel M, Bloch W. Comparisons of Blood Parameters, Red Blood Cell Deformability and Circulating Nitric Oxide Between Males and Females Considering Hormonal Contraception: A Longitudinal Gender Study. Front Physiol 2018; 9:1835. [PMID: 30618840 PMCID: PMC6305760 DOI: 10.3389/fphys.2018.01835] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 12/06/2018] [Indexed: 11/23/2022] Open
Abstract
Red blood cell (RBC) deformability is an important determinant of the microcirculation. It is influenced by various hematological parameters but also by nitric oxide (NO) which is produced in RBC from L-arginine by RBC-NO synthase. Longitudinal studies on blood profile, deformability at rest and NO levels but also differences between males and females (±hormonal contraception; HC) are less known so far. The study thus aimed to investigate RBC deformability, RBC NO species (nitrite, RxNO), RBC L-arginine concentration and basal blood parameters in males and females (±HC) as a function of time. RBC deformability was measured at rest once per week and the remaining parameters were measured once per month, respectively. A second experiment aimed to daily measure RBC deformability and 17β-estradiol in Female ± HC during a whole menstruation cycle to investigate a possible relation of the two parameters. Measured parameters showed low week-to-week variation and remained constant during study period. However, RBC deformability increased in Female + HC during study period possibly because of increasing training volume of the participants. Overall, results indicate gender differences in hematological parameters with higher RBC parameters (RBC count, hematocrit, hemoglobin concentration) in males compared to females. Differences were also observed between the female groups with Females - HC showing lower number of RBC but higher MCV and hematocrit compared to Females + HC. RBC deformability was highest in Females - HC which might be related to permanent higher estradiol levels and/or higher RBC NO levels because RBC nitrite and RBC RxNO concentrations were also highest in Females-HC. Results of the second experiment also suggest higher RBC deformability in Female - HC because of higher estradiol concentrations. L-arginine levels known to be related to RBC NO production were comparable in all groups. In conclusion, hematological, hemorheological and NO related parameters show gender differences. In particular, RBC deformability is affected by training volume and RBC estradiol concentrations. The results add new information on the complex regulation of RBC function which might help to better understand the role of RBC in the microcirculation.
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Affiliation(s)
- Marijke Grau
- Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - John Maxwell Cremer
- Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Steffen Schmeichel
- Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Markus Kunkel
- Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Wilhelm Bloch
- Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne, Germany
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10
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Nader E, Grau M, Fort R, Collins B, Cannas G, Gauthier A, Walpurgis K, Martin C, Bloch W, Poutrel S, Hot A, Renoux C, Thevis M, Joly P, Romana M, Guillot N, Connes P. Hydroxyurea therapy modulates sickle cell anemia red blood cell physiology: Impact on RBC deformability, oxidative stress, nitrite levels and nitric oxide synthase signalling pathway. Nitric Oxide 2018; 81:28-35. [PMID: 30342855 DOI: 10.1016/j.niox.2018.10.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 10/16/2018] [Accepted: 10/17/2018] [Indexed: 01/05/2023]
Abstract
Hydroxyurea (HU) has been suggested to act as a nitric oxide (NO) donor in sickle cell anemia (SCA). However, little is known about the HU NO-related effects on red blood cell (RBC) physiology and NO signalling pathway. Thirty-four patients with SCA (22 under HU treatment (HU+) and 12 without (HU-)) and 17 healthy subjects (AA) were included. RBC nitrite content, deformability and reactive oxygen species (ROS) levels were measured. RBC NO-synthase (RBC-NOS) signalling pathway was assessed by the measurement of RBC-NOS serine1177 and RBC-AKT serine473 phosphorylation. We also investigated the in vitro effects of Sodium Nitroprusside (SNP), a NO donor, on the same parameters in SCA RBC. RBC nitrite content was higher in HU+ than in HU- and AA. RBC deformability was decreased in SCA patients compared to AA but the decrease was more pronounced in HU-. RBC ROS level was increased in SCA compared to AA but the level was higher in HU- than in HU+. RBC-NOS serine1177 and RBC-AKT serine473 phosphorylation were decreased in HU+ compared to HU- and AA. SCA RBC treated with SNP showed increased deformability, reduced ROS content and a decrease in AKT and RBC-NOS phosphorylation. Our study suggests that HU, through its effects on foetal hemoglobin and possibly on NO delivery, would modulate RBC NO signalling pathway, RBC rheology and oxidative stress.
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Affiliation(s)
- Elie Nader
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM) EA7424, Team « Vascular Biology and Red Blood Cell », Université Claude Bernard Lyon 1, Université de Lyon, France; Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France
| | - Marijke Grau
- Molecular and Cellular Sport Medicine, Deutsche Sporthochschule Köln, Germany
| | - Romain Fort
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM) EA7424, Team « Vascular Biology and Red Blood Cell », Université Claude Bernard Lyon 1, Université de Lyon, France; Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France; Département de Médecine Interne, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Bianca Collins
- Molecular and Cellular Sport Medicine, Deutsche Sporthochschule Köln, Germany
| | - Giovanna Cannas
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM) EA7424, Team « Vascular Biology and Red Blood Cell », Université Claude Bernard Lyon 1, Université de Lyon, France; Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France; Département de Médecine Interne, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Alexandra Gauthier
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM) EA7424, Team « Vascular Biology and Red Blood Cell », Université Claude Bernard Lyon 1, Université de Lyon, France; Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France; Institut d'Hématologie et d'Oncologie Pédiatrique, Hospices Civils de Lyon, Lyon, France
| | - Katja Walpurgis
- Center for Preventive Doping Research - Institute of Biochemistry, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933, Cologne, Germany
| | - Cyril Martin
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM) EA7424, Team « Vascular Biology and Red Blood Cell », Université Claude Bernard Lyon 1, Université de Lyon, France; Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France
| | - Wilhelm Bloch
- Molecular and Cellular Sport Medicine, Deutsche Sporthochschule Köln, Germany
| | - Solène Poutrel
- Département de Médecine Interne, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Arnaud Hot
- Département de Médecine Interne, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Céline Renoux
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM) EA7424, Team « Vascular Biology and Red Blood Cell », Université Claude Bernard Lyon 1, Université de Lyon, France; Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France; Laboratoire de Biochimie et de Biologie Moléculaire, UF de biochimie des pathologies érythrocytaires, Centre de Biologie et de Pathologie Est, Hospices Civils de Lyon, Lyon, France
| | - Mario Thevis
- Center for Preventive Doping Research - Institute of Biochemistry, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933, Cologne, Germany
| | - Philippe Joly
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM) EA7424, Team « Vascular Biology and Red Blood Cell », Université Claude Bernard Lyon 1, Université de Lyon, France; Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France; Laboratoire de Biochimie et de Biologie Moléculaire, UF de biochimie des pathologies érythrocytaires, Centre de Biologie et de Pathologie Est, Hospices Civils de Lyon, Lyon, France
| | - Marc Romana
- Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France; UMR Inserm 1134, Hôpital Ricou, Centre Hospitalier Universitaire, Pointe-à-Pitre, Guadeloupe
| | - Nicolas Guillot
- Laboratoire Carmen Inserm 1060, INSA Lyon, Université Claude Bernard Lyon 1, Université de Lyon, Villeurbanne, France
| | - Philippe Connes
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM) EA7424, Team « Vascular Biology and Red Blood Cell », Université Claude Bernard Lyon 1, Université de Lyon, France; Laboratoire d'Excellence du Globule Rouge (Labex GR-Ex), PRES Sorbonne, Paris, France; Institut Universitaire de France, Paris, France.
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11
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Bizjak DA, Jungen P, Bloch W, Grau M. Cryopreservation of red blood cells: Effect on rheologic properties and associated metabolic and nitric oxide related parameters. Cryobiology 2018; 84:59-68. [DOI: 10.1016/j.cryobiol.2018.08.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 08/01/2018] [Accepted: 08/02/2018] [Indexed: 11/17/2022]
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12
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Bizjak DA, Jacko D, Zimmer P, Gehlert S, Bloch W, Grau M. Acute alterations in the hematological and hemorheological profile induced by resistance training and possible implication for microvascular functionality. Microvasc Res 2018; 118:137-143. [PMID: 29559378 DOI: 10.1016/j.mvr.2018.03.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 03/16/2018] [Accepted: 03/16/2018] [Indexed: 12/24/2022]
Abstract
Depending on the exercise variables and training design, resistance exercise can be applied to gain muscle mass, prevent diseases like osteoporosis and sarcopenia or generally increase strength capacity. But the influence on blood flow parameters and possible consequences in health and disease are less understood. To examine the possible impact of resistance exercise of different duration on hemorheology, oxidative stress and microvascular function, participants (n = 6) performed lower-limb resistance exercise of the quadriceps femoris. Loading consisted of 1 (S1), 5 (S5) and 10 (S10) sets, on separated days, at the individual 10 repetition maximum. Blood samples were taken before (Pre) and after (Post0) each set as well after a 25-min recovery period (Post25). Hemograms were measured to analyze hematocrit, white blood cell (WBC) count and red blood cell (RBC) count. RBC deformability and aggregation were measured by ektacytometry and syllectometry to determine hemorheological responses. Plasma and RBC nitrate were measured by chemiluminescence detection to determine nitric oxide production. Formation of N-tyrosine and plasma malondialdehyde to determine oxidative stress and lipid peroxidation were measured by immunostaining and ELISA, respectively. Hematocrit, RBC, WBC count and aggregation increased Post0 in each protocol with subsequently decreased values Post25 below Pre values. High effect size was observed regarding deformability during the different sets. RBC nitrite analysis revealed effect size alterations between the trainings, whereas plasma nitrite was not affected. Effects size was evident in lipid peroxidation, whereas N-tyrosine concentration was not altered. Lower-limb resistance exercise induced acute changes in hematological and hemorheological parameters, whereby intermittent hemodilution and plasma shifts seemed the major contributor. The acute adaptations of RBC function seen during short duration resistance exercise might contribute to beneficial effects on microvascular circulation with a low oxidative stress response.
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Affiliation(s)
- Daniel A Bizjak
- Department of Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne, Germany.
| | - Daniel Jacko
- Department of Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne, Germany; Olympic Training Centre Rhineland, Cologne, Germany.
| | - Philipp Zimmer
- Department of Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne, Germany; Division of Physical Activity, Prevention and Cancer, National Center for Tumor Diseases (NCT) and German Cancer Research Center, Heidelberg, Germany.
| | - Sebastian Gehlert
- Department of Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne, Germany.
| | - Wilhelm Bloch
- Department of Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne, Germany; The German Research Centre of Elite Sport, German Sport University Cologne, Cologne, Germany.
| | - Marijke Grau
- Department of Molecular and Cellular Sports Medicine, German Sport University Cologne, Cologne, Germany.
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13
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Martini D, Rossi S, Biasini B, Zavaroni I, Bedogni G, Musci M, Pruneti C, Passeri G, Ventura M, Di Nuzzo S, Galli D, Mirandola P, Vitale M, Dei Cas A, Bonadonna RC, Del Rio D. Claimed effects, outcome variables and methods of measurement for health claims proposed under European Community Regulation 1924/2006 in the framework of protection against oxidative damage and cardiovascular health. Nutr Metab Cardiovasc Dis 2017; 27:473-503. [PMID: 28434807 DOI: 10.1016/j.numecd.2017.01.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 01/30/2017] [Accepted: 01/31/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND AND AIMS The high number of negative opinions from the European Food Safety Authority (EFSA) to the requests for authorization of health claims is largely due to the design of human intervention studies, including the inappropriate choice of outcome variables (OVs) and of their methods of measurement (MMs). The present manuscript reports the results of an investigation aimed to collect, collate and critically analyse the information in relation to claimed effects, OVs and MMs, in the context of protection against oxidative damage and cardiovascular health compliant with Regulation 1924/2006. METHODS AND RESULTS Claimed effects, OVs and the related MMs were collected from EFSA Guidance documents and applications for authorization of health claims under Articles 13.5 and 14. The OVs and their MMs were evaluated only if the claimed effect was sufficiently defined and was considered beneficial by EFSA. The collection, collation and critical analysis of the relevant scientific literature consisted in the definition of the keywords, the PubMed search strategies and the creation of databases of references. The critical analysis of the OVs and their MMs was performed on the basis of the literature review and was aimed at defining the appropriateness of OVs and MMs in the context of the specific claimed effects. CONCLUSIONS The information provided in this document could serve to EFSA for the development of further guidance on the scientific requirements for health claims, as well as to the stakeholders for the proper design of human intervention studies aimed to substantiate such health claims.
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Affiliation(s)
- D Martini
- The Laboratory of Phytochemicals in Physiology, Department of Food and Drug, University of Parma, Parma, Italy
| | - S Rossi
- The Laboratory of Phytochemicals in Physiology, Department of Food and Drug, University of Parma, Parma, Italy
| | - B Biasini
- The Laboratory of Phytochemicals in Physiology, Department of Food and Drug, University of Parma, Parma, Italy
| | - I Zavaroni
- Department of Medicine and Surgery, Division of Endocrinology, University of Parma, Italy; Azienda Ospedaliera Universitaria of Parma, Parma, Italy
| | - G Bedogni
- Clinical Epidemiology Unit, Liver Research Center, Basovizza, Trieste, Italy
| | - M Musci
- Department of Food and Drug, University of Parma, Parma, Italy
| | - C Pruneti
- Department of Medicine and Surgery, Clinical Psychology Unit, University of Parma, Medical School Building, Parma, Italy
| | - G Passeri
- Department of Medicine and Surgery, Building Clinica Medica Generale, University of Parma, Parma, Italy
| | - M Ventura
- Department of Chemistry, Life Sciences and Environmental Sustainability, Laboratory of Probiogenomics, University of Parma, Parma, Italy
| | - S Di Nuzzo
- Department of Medicine and Surgery, Section of Dermatology, University of Parma, Parma, Italy
| | - D Galli
- Department of Medicine and Surgery, Sport and Exercise Medicine Centre (SEM), University of Parma, Parma, Italy
| | - P Mirandola
- Department of Medicine and Surgery, Sport and Exercise Medicine Centre (SEM), University of Parma, Parma, Italy
| | - M Vitale
- Department of Medicine and Surgery, Sport and Exercise Medicine Centre (SEM), University of Parma, Parma, Italy
| | - A Dei Cas
- Department of Medicine and Surgery, Division of Endocrinology, University of Parma, Italy; Azienda Ospedaliera Universitaria of Parma, Parma, Italy
| | - R C Bonadonna
- Department of Medicine and Surgery, Division of Endocrinology, University of Parma, Italy; Azienda Ospedaliera Universitaria of Parma, Parma, Italy
| | - D Del Rio
- The Laboratory of Phytochemicals in Physiology, Department of Food and Drug, University of Parma, Parma, Italy.
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14
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Grau M, Kollikowski A, Bloch W. Remote ischemia preconditioning increases red blood cell deformability through red blood cell-nitric oxide synthase activation. Clin Hemorheol Microcirc 2017; 63:185-97. [PMID: 26890111 DOI: 10.3233/ch-152039] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Remote ischemia preconditioning (rIPC), short cycles of ischemia (I) and reperfusion (R) of a region remote from the heart, protects against myocardial I/R injury. This effect is triggered by endothelial derived nitric oxide (NO) production. Red blood cells (RBC) are also capable of NO production and it is hypothesized that the beneficial effect of rIPC in terms of cardioprotection is strengthened by increased RBC dependent NO production and improved RBC function after rIPC maneuver. For this purpose, twenty male participants were subjected to four cycles of no-flow ischemia with subsequent reactive hyperemia within the forearm. Blood sampling and measurement of blood pressures and heart rate were carried out pre intervention, after each cycle and 15 min post intervention at both the non-treated and treated arm. These are the first results that show improved RBC deformability in the treated arm after rIPC cycles 1- 4 caused by significantly increased RBC-NO synthase activation. This in turn was associated to increased NO production in both arms after rIPC cycles 3 + 4. Also, systolic and diastolic blood pressures were decreased after rIPC. The findings lead to the conclusion that the cardioprotective effects associated with rIPC include improvement of the RBC-NOS/NO signaling in RBC.
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Affiliation(s)
- Marijke Grau
- German Sport University Cologne, Department of Molecular and Cellular Sport Medicine, Am Sportpark Müngersdorf 6, Cologne, Germany
| | - Alexander Kollikowski
- German Sport University Cologne, Department of Molecular and Cellular Sport Medicine, Am Sportpark Müngersdorf 6, Cologne, Germany
| | - Wilhelm Bloch
- German Sport University Cologne, Department of Molecular and Cellular Sport Medicine, Am Sportpark Müngersdorf 6, Cologne, Germany.,German Sport University Cologne, The German Research Center of Elite Sport (momentum), Am Sportpark Müngersdorf 6, Cologne, Germany
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15
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Marijke G, Vera A, Tobias V, Wilhelm B, Stefan S. Erythrocyte deformability and aggregation responses to intermittent and continuous artificial gravity exposure. LIFE SCIENCES IN SPACE RESEARCH 2017; 12:61-66. [PMID: 28212709 DOI: 10.1016/j.lssr.2017.01.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 01/27/2017] [Accepted: 01/30/2017] [Indexed: 06/06/2023]
Abstract
Artificial gravity protocols are used to improve g-tolerance of aviators and discussed as countermeasure during prolonged space flight. Little is known about the impact of artificial gravity on the red blood cells (RBC). The purpose of the study was to test how artificial gravity affects RBC deformability and aggregation, which are important determinants of microcirculation. Nine male subjects were exposed to two hypergravity protocols using a short arm human centrifuge: a continuous (CONT) protocol with constant +2Gz for 30min and an intermittent (INTER) protocol with repeated intervals of +2Gz and rest. Blood was sampled pre and post interventions to measure basal blood parameters, RBC nitrite, RBC deformability, aggregation, and to determine the shear rate balancing aggregation and disaggregation (γ at dIsc min). To test for orthostasis effects, five male subjects were asked to stay for 46min, corresponding to the length of the centrifuge protocols, with blood sampling pre and post intervention. Artificial gravity programs did not affect basal blood parameters or RBC nitrite levels; a marker for RBC deformability influencing nitric oxide. The INTER program did not affect any of the tested parameters. The CONT program did not remarkably affect RBC deformability or γ at dIsc min but significantly aggravated aggregation. Orthostasis effects were thus excluded. The results indicate that continuous artificial gravity, especially with higher g-forces applied, may negatively affect the RBC system and that for a prolonged space flight intermittent but not continuous artificial gravity might represent an appropriate countermeasure.
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Affiliation(s)
- Grau Marijke
- Department of Molecular and Cellular Sports Medicine, Institute of Cardiovascular Research and Sports Medicine, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany.
| | - Abeln Vera
- Department of Movement-Neuroscience, Institute of Movement and Neurosciences, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany
| | - Vogt Tobias
- Department of Movement-Neuroscience, Institute of Movement and Neurosciences, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany; Institute of Professional Sport Education and Sport Qualifications, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany
| | - Bloch Wilhelm
- Department of Molecular and Cellular Sports Medicine, Institute of Cardiovascular Research and Sports Medicine, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany
| | - Schneider Stefan
- Department of Movement-Neuroscience, Institute of Movement and Neurosciences, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany
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16
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Piknova B, Park JW, Cassel KS, Gilliard CN, Schechter AN. Measuring Nitrite and Nitrate, Metabolites in the Nitric Oxide Pathway, in Biological Materials using the Chemiluminescence Method. J Vis Exp 2016. [PMID: 28060334 DOI: 10.3791/54879] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Nitric oxide (NO) is one of the main regulator molecules in vascular homeostasis and also a neurotransmitter. Enzymatically produced NO is oxidized into nitrite and nitrate by interactions with various oxy-heme proteins and other still not well known pathways. The reverse process, reduction of nitrite and nitrate into NO had been discovered in mammals in the last decade and it is gaining attention as one of the possible pathways to either prevent or ease a whole range of cardiovascular, metabolic and muscular disorders that are thought to be associated with decreased levels of NO. It is therefore important to estimate the amount of NO and its metabolites in different body compartments - blood, body fluids and the various tissues. Blood, due to its easy accessibility, is the preferred compartment used for estimation of NO metabolites. Due to its short lifetime (few milliseconds) and low sub-nanomolar concentration, direct reliable measurements of blood NO in vivo present great technical difficulties. Thus NO availability is usually estimated based on the amount of its oxidation products, nitrite and nitrate. These two metabolites are always measured separately. There are several well established methods to determine their concentrations in biological fluids and tissues. Here we present a protocol for chemiluminescence method (CL), based on spectrophotometrical detection of NO after nitrite or nitrate reduction by tri-iodide or vanadium(III) chloride solutions, respectively. The sensitivity for nitrite and nitrate detection is in low nanomolar range, which sets CL as the most sensitive method currently available to determine changes in NO metabolic pathways. We explain in detail how to prepare samples from biological fluids and tissues in order to preserve original amounts of nitrite and nitrate present at the time of collection and how to determine their respective amounts in samples. Limitations of the CL technique are also explained.
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17
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Brinkmann C, Schulte-Körne B, Grau M, Obels S, Kemmerling R, Schiffer T, Bloch W, Brixius K. Effects of Endurance Training on the Skeletal Muscle Nitric Oxide Metabolism in Insulin-Independent Type 2 Diabetic Men-A Pilot Study. Metab Syndr Relat Disord 2016; 15:52-58. [PMID: 27782779 DOI: 10.1089/met.2016.0092] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Increases in the amount of inducible nitric oxide synthase (iNOS) protein and abnormal production of nitric oxide (NO) in skeletal muscle have been suggested to be associated with peripheral insulin resistance in patients with type 2 diabetes mellitus (T2DM). This pilot study analyzed whether a 3-month endurance training can affect iNOS protein and NO metabolite levels in the vastus lateralis muscle of insulin-independent T2DM men, thereby affecting the patients` glycemic control. Furthermore, serum molecules, which have been shown to activate iNOS protein expression in in vitro experiments, were quantified. METHODS Eight overweight/obese T2DM men (years = 61 ± 10) participated in the study. Muscle biopsies and venous blood collections were performed at T1 (6 weeks before training), T2 (1 week before training), and T3 (3 to 4 days after training). Protein contents (iNOS) were determined by Western blotting, nitrite concentrations by chemiluminescence, and serum molecule levels by enzyme-linked immunosorbent assay kits. RESULTS The training reduced iNOS protein contents significantly (T2-T3: approximately -31%, P = 0.018). Nitrite concentrations as well as fasting glucose and HbA1c decreased, but not significantly. Serum tumor necrosis factor-α, thiobarbituric acid-reactive substances (lipid peroxidation as an indirect measure of reactive oxygen species), lipopolysaccharide binding protein, interferon-γ, and interleukin-1β showed no significant changes. CONCLUSIONS The data indicate that the endurance training performed in the present study can reduce iNOS protein contents in insulin-independent T2DM men. Future studies should identify key molecules in iNOS regulation in vivo and fully clarify whether iNOS downregulation can help improve insulin sensitivity in T2DM patients in the long term.
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Affiliation(s)
- Christian Brinkmann
- 1 Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne , Cologne, Germany
| | - Benedikt Schulte-Körne
- 1 Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne , Cologne, Germany
| | - Marijke Grau
- 1 Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne , Cologne, Germany
| | - Sinja Obels
- 1 Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne , Cologne, Germany
| | - Roman Kemmerling
- 1 Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne , Cologne, Germany
| | - Thorsten Schiffer
- 2 Outpatient Clinic for Sports Traumatology and Public Health Consultation, German Sport University Cologne , Cologne, Germany
| | - Wilhelm Bloch
- 1 Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne , Cologne, Germany
| | - Klara Brixius
- 1 Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne , Cologne, Germany
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18
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Grau M, Lauten A, Hoeppener S, Goebel B, Brenig J, Jung C, Bloch W, Suhr F. Regulation of red blood cell deformability is independent of red blood cell-nitric oxide synthase under hypoxia. Clin Hemorheol Microcirc 2016; 63:199-215. [DOI: 10.3233/ch-162044] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Marijke Grau
- Department of Molecular and Cellular Sport Medicine, German Sport University Cologne, Germany
- The German Research Center of Elite Sport (momentum), German Sport University Cologne, Germany
| | - Alexander Lauten
- Department of Internal Medicine I (Cardiology, Angiology, Pneumology), Friedrich-Schiller University, Jena, Germany
| | - Steffen Hoeppener
- Department of Molecular and Cellular Sport Medicine, German Sport University Cologne, Germany
| | - Bjoern Goebel
- Department of Internal Medicine I (Cardiology, Angiology, Pneumology), Friedrich-Schiller University, Jena, Germany
| | - Julian Brenig
- Department of Molecular and Cellular Sport Medicine, German Sport University Cologne, Germany
| | - Christian Jung
- Department of Internal Medicine I (Cardiology, Angiology, Pneumology), Friedrich-Schiller University, Jena, Germany
| | - Wilhelm Bloch
- Department of Molecular and Cellular Sport Medicine, German Sport University Cologne, Germany
- The German Research Center of Elite Sport (momentum), German Sport University Cologne, Germany
| | - Frank Suhr
- Department of Molecular and Cellular Sport Medicine, German Sport University Cologne, Germany
- The German Research Center of Elite Sport (momentum), German Sport University Cologne, Germany
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Griendling KK, Touyz RM, Zweier JL, Dikalov S, Chilian W, Chen YR, Harrison DG, Bhatnagar A. Measurement of Reactive Oxygen Species, Reactive Nitrogen Species, and Redox-Dependent Signaling in the Cardiovascular System: A Scientific Statement From the American Heart Association. Circ Res 2016; 119:e39-75. [PMID: 27418630 DOI: 10.1161/res.0000000000000110] [Citation(s) in RCA: 264] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Reactive oxygen species and reactive nitrogen species are biological molecules that play important roles in cardiovascular physiology and contribute to disease initiation, progression, and severity. Because of their ephemeral nature and rapid reactivity, these species are difficult to measure directly with high accuracy and precision. In this statement, we review current methods for measuring these species and the secondary products they generate and suggest approaches for measuring redox status, oxidative stress, and the production of individual reactive oxygen and nitrogen species. We discuss the strengths and limitations of different methods and the relative specificity and suitability of these methods for measuring the concentrations of reactive oxygen and reactive nitrogen species in cells, tissues, and biological fluids. We provide specific guidelines, through expert opinion, for choosing reliable and reproducible assays for different experimental and clinical situations. These guidelines are intended to help investigators and clinical researchers avoid experimental error and ensure high-quality measurements of these important biological species.
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Grau M, Bölck B, Bizjak DA, Stabenow CJA, Bloch W. The red-vine-leaf extract AS195 increases nitric oxide synthase-dependent nitric oxide generation and decreases oxidative stress in endothelial and red blood cells. Pharmacol Res Perspect 2016; 4:e00213. [PMID: 26977302 PMCID: PMC4777269 DOI: 10.1002/prp2.213] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 12/24/2015] [Indexed: 12/29/2022] Open
Abstract
The red‐vine‐leaf extract AS195 improves cutaneous oxygen supply and the microcirculation in patients suffering from chronic venous insufficiency. Regulation of blood flow was associated to nitric oxide synthase (NOS)‐dependent NO (nitric oxide) production, and endothelial and red blood cells (RBC) have been shown to possess respective NOS isoforms. It was hypothesized that AS195 positively affects NOS activation in human umbilical vein endothelial cells (HUVECs) and RBC. Because patients with microvascular disorders show increased oxidative stress which limits NO bioavailability, it was further hypothesized that AS195 increases NO bioavailability by decreasing the content of reactive oxygen species (ROS) and increasing antioxidant capacity. Cultured HUVECs and RBCs from healthy volunteers were incubated with AS195 (100 μmol/L), tert‐butylhydroperoxide (TBHP, 1 mmol/L) to induce oxidative stress and with both AS195 and TBHP. Endothelial and red blood cell–nitric oxide synthase (RBC‐NOS) activation significantly increased after AS195 incubation. Nitrite concentration, a marker for NO production, increased in HUVEC but decreased in RBC after AS195 application possibly due to nitrite scavenging potential of flavonoids. S‐nitrosylation of RBC cytoskeletal spectrins and RBC deformability were increased after AS195 incubation. TBHP‐induced ROS were decreased by AS195, and antioxidative capacity was significantly increased in AS195‐treated cells. TBHP also reduced RBC deformability, but reduction was attenuated by parallel incubation with AS195. Adhesion of HUVEC was also reduced after AS195 treatment. Red‐vine‐leaf extract AS195 increases NOS activation and decreases oxidative stress. Both mechanisms increase NO bioavailability, improve cell function, and may thus account for enhanced microcirculation in both health and disease.
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Affiliation(s)
- Marijke Grau
- Departments Molecular and Cellular Sports Medicine German Sport University Cologne Institute of Cardiovascular Research and Sports Medicine Am Sportpark Müngersdorf 6 Cologne Germany
| | - Birgit Bölck
- Departments Molecular and Cellular Sports Medicine German Sport University Cologne Institute of Cardiovascular Research and Sports Medicine Am Sportpark Müngersdorf 6 Cologne Germany
| | - Daniel Alexander Bizjak
- Departments Molecular and Cellular Sports Medicine German Sport University Cologne Institute of Cardiovascular Research and Sports Medicine Am Sportpark Müngersdorf 6 Cologne Germany
| | - Christina Julia Annika Stabenow
- Departments Molecular and Cellular Sports Medicine German Sport University Cologne Institute of Cardiovascular Research and Sports Medicine Am Sportpark Müngersdorf 6 Cologne Germany
| | - Wilhelm Bloch
- Departments Molecular and Cellular Sports Medicine German Sport University Cologne Institute of Cardiovascular Research and Sports Medicine Am Sportpark Müngersdorf 6 Cologne Germany
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21
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Santoro G, Beltrami R, Kottelat E, Blacque O, Bogdanova AY, Zobi F. N-Nitrosamine-{cis-Re[CO]2}2+ cobalamin conjugates as mixed CO/NO-releasing molecules. Dalton Trans 2016; 45:1504-13. [DOI: 10.1039/c5dt03402g] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mixed CO/NO-releasing molecules were prepared by conjugation of the 17-electron rhenium dicarbonyl cis-[Re(CO)2Br4]2− complex to N-nitrosamine modified cyanocobalamin (B12) bio-vectors.
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Affiliation(s)
- Giuseppe Santoro
- Department of Chemistry
- University of Zürich
- CH-8057 Zürich
- Switzerland
| | - Ruben Beltrami
- Department of Chemistry
- University of Fribourg
- CH-1700 Fribourg
- Switzerland
| | - Emmanuel Kottelat
- Department of Chemistry
- University of Fribourg
- CH-1700 Fribourg
- Switzerland
| | - Olivier Blacque
- Department of Chemistry
- University of Zürich
- CH-8057 Zürich
- Switzerland
| | - Anna Yu. Bogdanova
- Institute of Veterinary Physiology
- University of Zürich
- CH-8057 Zürich
- Switzerland
| | - Fabio Zobi
- Department of Chemistry
- University of Fribourg
- CH-1700 Fribourg
- Switzerland
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22
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Bizjak DA, Brinkmann C, Bloch W, Grau M. Increase in Red Blood Cell-Nitric Oxide Synthase Dependent Nitric Oxide Production during Red Blood Cell Aging in Health and Disease: A Study on Age Dependent Changes of Rheologic and Enzymatic Properties in Red Blood Cells. PLoS One 2015; 10:e0125206. [PMID: 25902315 PMCID: PMC4406474 DOI: 10.1371/journal.pone.0125206] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 03/11/2015] [Indexed: 11/18/2022] Open
Abstract
AIM To investigate RBC-NOS dependent NO signaling during in vivo RBC aging in health and disease. METHOD RBC from fifteen healthy volunteers (HC) and four patients with type 2 diabetes mellitus (DM) were separated in seven subpopulations by Percoll density gradient centrifugation. RESULTS The proportion of old RBC was significantly higher in DM compared to HC. In both groups, in vivo aging was marked by changes in RBC shape and decreased cell volume. RBC nitrite, as marker for NO, was higher in DM and increased in both HC and DM during aging. RBC deformability was lower in DM and significantly decreased in old compared to young RBC in both HC and DM. RBC-NOS Serine1177 phosphorylation, indicating enzyme activation, increased during aging in both HC and DM. Arginase I activity remained unchanged during aging in HC. In DM, arginase I activity was significantly higher in young RBC compared to HC but decreased during aging. In HC, concentration of L-arginine, the substrate of RBC-NOS and arginase I, significantly dropped from young to old RBC. In DM, L-arginine concentration was significantly higher in young RBC compared to HC and significantly decreased during aging. In blood from healthy subjects, RBC-NOS activation was additionally inhibited by N5-(1-iminoethyl)-L-Ornithine dihydrochloride which decreased RBC nitrite, and impaired RBC deformability of all but the oldest RBC subpopulation. CONCLUSION This study first-time showed highest RBC-NOS activation and NO production in old RBC, possibly to counteract the negative impact of cell shrinkage on RBC deformability. This was even more pronounced in DM. It is further suggested that highly produced NO only insufficiently affects cell function of old RBC maybe because of isolated RBC-NOS in old RBC thus decreasing NO bioavailability. Thus, increasing NO availability may improve RBC function and may extend cell life span in old RBC.
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Affiliation(s)
- Daniel Alexander Bizjak
- Department of Molecular and Cellular Sport Medicine, German Sport University Cologne, Cologne, Germany
| | - Christian Brinkmann
- Department of Molecular and Cellular Sport Medicine, German Sport University Cologne, Cologne, Germany
| | - Wilhelm Bloch
- Department of Molecular and Cellular Sport Medicine, German Sport University Cologne, Cologne, Germany
| | - Marijke Grau
- Department of Molecular and Cellular Sport Medicine, German Sport University Cologne, Cologne, Germany
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23
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Totzeck M, Schicho A, Stock P, Kelm M, Rassaf T, Hendgen-Cotta UB. Nitrite circumvents canonical cGMP signaling to enhance proliferation of myocyte precursor cells. Mol Cell Biochem 2014; 401:175-83. [PMID: 25501648 DOI: 10.1007/s11010-014-2305-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 12/10/2014] [Indexed: 01/12/2023]
Abstract
Skeletal muscle tissue has a remarkable high regenerative capacity. The underlying cellular events are governed by complex signaling processes, and the proliferation of skeletal myoblasts is a key initial event. The role of nitric oxide (NO) in cell cycle regulation is well-appreciated. Nitrite, an NO oxidation product, is a stable source for NO-like bioactivity particularly in cases when oxygen shortage compromises NO-synthases activity. Although numerous studies suggest that nitrite effects are largely related to NO-dependent signaling, emerging evidence also implicates that nitrite itself can activate protein pathways albeit under physiological, normoxic conditions. This includes a recently demonstrated cyclic guanosine monophosphate-(cGMP)-independent enhancement of endothelial cell proliferation. Whether nitrite itself has the potential to affect myoblast proliferation and metabolism with or without activation of the canonical NO/cGMP pathway to subsequently support muscle cell regeneration is not known. Here we show that nitrite increases proliferation and metabolic activity of murine cultured myoblasts dose-dependently. This effect is not abolished by the NO scavenger 2-(4-carboxy-phenyl)-4,4,5,5-tetramethylimida-zoline-1-oxyl-3 oxide and does not affect intracellular cGMP levels, implicating a cGMP-independent mechanism. Nitrite circumvents the rapamycin induced attenuation of myoblast proliferation and enhances mTOR activity. Our results provide evidence for a novel potential physiological and therapeutic approach of nitrite in skeletal muscle regeneration processes under normoxia independent of NO and cGMP.
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Affiliation(s)
- Matthias Totzeck
- Division of Cardiology, Pulmonology and Vascular Medicine, Department of Medicine, Medical Faculty, University Hospital Duesseldorf, Moorenstrasse 5, 40225, Düsseldorf, Germany
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24
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Grau M, Mozar A, Charlot K, Lamarre Y, Weyel L, Suhr F, Collins B, Jumet S, Hardy-Dessources MD, Romana M, Lemonne N, Etienne-Julan M, Antoine-Jonville S, Bloch W, Connes P. High red blood cell nitric oxide synthase activation is not associated with improved vascular function and red blood cell deformability in sickle cell anaemia. Br J Haematol 2014; 168:728-36. [PMID: 25316332 DOI: 10.1111/bjh.13185] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Accepted: 09/10/2014] [Indexed: 12/20/2022]
Abstract
Human red blood cells (RBC) express an active and functional endothelial-like nitric oxide (NO) synthase (RBC-NOS). We report studies on RBC-NOS activity in sickle cell anaemia (SCA), a genetic disease characterized by decreased RBC deformability and vascular dysfunction. Total RBC-NOS content was not significantly different in SCA patients compared to healthy controls; however, using phosphorylated RBC-NOS-Ser(1177) as a marker, RBC-NOS activation was higher in SCA patients as a consequence of the greater activation of Akt (phosphorylated Akt-Ser(473) ). The higher RBC-NOS activation in SCA led to higher levels of S-nitrosylated α- and β-spectrins, and greater RBC nitrite and nitrotyrosine levels compared to healthy controls. Plasma nitrite content was not different between the two groups. Laser Doppler flowmetric experiments demonstrated blunted microcirculatory NO-dependent response under hyperthermia in SCA patients. RBC deformability, measured by ektacytometry, was reduced in SCA in contrast to healthy individuals, and pre-shearing RBC in vitro did not improve deformability despite an increase of RBC-NOS activation. RBC-NOS activation is high in freshly drawn blood from SCA patients, resulting in high amounts of NO produced by RBC. However, this does not result in improved RBC deformability and vascular function: higher RBC-NO is not sufficient to counterbalance the enhanced oxidative stress in SCA.
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Affiliation(s)
- Marijke Grau
- Institute of Cardiovascular Research and Sport Medicine, Department of Molecular and Cellular Sport Medicine, German Sport University Cologne, Cologne, Germany; The German Research Centre of Elite Sport, German Sport University Cologne, Cologne, Germany
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25
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Depletion of circulating blood NOS3 increases severity of myocardial infarction and left ventricular dysfunction. Basic Res Cardiol 2013; 109:398. [PMID: 24346018 PMCID: PMC3898535 DOI: 10.1007/s00395-013-0398-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 11/25/2013] [Accepted: 12/06/2013] [Indexed: 01/14/2023]
Abstract
Nitric oxide (NO) derived from endothelial NO synthase (NOS3) plays a central role in myocardial ischemia/reperfusion (I/R)-injury. Subsets of circulating blood cells, including red blood cells (RBCs), carry a NOS3 and contribute to blood pressure regulation and RBC nitrite/nitrate formation. We hypothesized that the circulating blood born NOS3 also modulates the severity of myocardial infarction in disease models. We cross-transplanted bone marrow in wild-type and NOS3−/− mice with wild-type mice, producing chimeras expressing NOS3 only in vascular endothelium (BC−/EC+) or in both blood cells and vascular endothelium (BC+/EC+). After 60-min closed-chest coronary occlusion followed by 24 h reperfusion, cardiac function, infarct size (IS), NOx levels, RBCs NO formation, RBC deformability, and vascular reactivity were assessed. At baseline, BC−/EC+ chimera had lower nitrite levels in blood plasma (BC−/EC+: 2.13 ± 0.27 μM vs. BC+/EC+ 3.17 ± 0.29 μM; *p < 0.05), reduced DAF FM associated fluorescence within RBCs (BC−/EC+: 538.4 ± 12.8 mean fluorescence intensity (MFI) vs. BC+/EC+: 619.6 ± 6.9 MFI; ***p < 0.001) and impaired erythrocyte deformability (BC−/EC+: 0.33 ± 0.01 elongation index (EI) vs. BC+/EC+: 0.36 ± 0.06 EI; *p < 0.05), while vascular reactivity remained unaffected. Area at risk did not differ, but infarct size was higher in BC−/EC+ (BC−/EC+: 26 ± 3 %; BC+/EC+: 14 ± 2 %; **p < 0.01), resulting in decreased ejection fraction (BC−/EC+ 46 ± 2 % vs. BC+/EC+: 52 ± 2 %; *p < 0.05) and increased end-systolic volume. Application of the NOS inhibitor S-ethylisothiourea hydrobromide was associated with larger infarct size in BC+/EC+, whereas infarct size in BC−/EC+ mice remained unaffected. Reduced infarct size, preserved cardiac function, NO levels in RBC and RBC deformability suggest a modulating role of circulating NOS3 in an acute model of myocardial I/R in chimeric mice.
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26
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Simvastatin treatment increases nitrite levels in obese women: Modulation by T−786C polymorphism of eNOS. Nitric Oxide 2013; 33:83-7. [DOI: 10.1016/j.niox.2013.07.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Revised: 07/11/2013] [Accepted: 07/14/2013] [Indexed: 11/23/2022]
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27
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Skeletal muscle function during exercise-fine-tuning of diverse subsystems by nitric oxide. Int J Mol Sci 2013; 14:7109-39. [PMID: 23538841 PMCID: PMC3645679 DOI: 10.3390/ijms14047109] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 03/17/2013] [Accepted: 03/19/2013] [Indexed: 02/07/2023] Open
Abstract
Skeletal muscle is responsible for altered acute and chronic workload as induced by exercise. Skeletal muscle adaptations range from immediate change of contractility to structural adaptation to adjust the demanded performance capacities. These processes are regulated by mechanically and metabolically induced signaling pathways, which are more or less involved in all of these regulations. Nitric oxide is one of the central signaling molecules involved in functional and structural adaption in different cell types. It is mainly produced by nitric oxide synthases (NOS) and by non-enzymatic pathways also in skeletal muscle. The relevance of a NOS-dependent NO signaling in skeletal muscle is underlined by the differential subcellular expression of NOS1, NOS2, and NOS3, and the alteration of NO production provoked by changes of workload. In skeletal muscle, a variety of highly relevant tasks to maintain skeletal muscle integrity and proper signaling mechanisms during adaptation processes towards mechanical and metabolic stimulations are taken over by NO signaling. The NO signaling can be mediated by cGMP-dependent and -independent signaling, such as S-nitrosylation-dependent modulation of effector molecules involved in contractile and metabolic adaptation to exercise. In this review, we describe the most recent findings of NO signaling in skeletal muscle with a special emphasis on exercise conditions. However, to gain a more detailed understanding of the complex role of NO signaling for functional adaptation of skeletal muscle (during exercise), additional sophisticated studies are needed to provide deeper insights into NO-mediated signaling and the role of non-enzymatic-derived NO in skeletal muscle physiology.
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28
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Grau M, Pauly S, Ali J, Walpurgis K, Thevis M, Bloch W, Suhr F. RBC-NOS-dependent S-nitrosylation of cytoskeletal proteins improves RBC deformability. PLoS One 2013; 8:e56759. [PMID: 23424675 PMCID: PMC3570529 DOI: 10.1371/journal.pone.0056759] [Citation(s) in RCA: 114] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Accepted: 01/14/2013] [Indexed: 11/18/2022] Open
Abstract
Background Red blood cells (RBC) possess a nitric oxide synthase (RBC-NOS) whose activation depends on the PI3-kinase/Akt kinase pathway. RBC-NOS-produced NO exhibits important biological functions like maintaining RBC deformability. Until now, the cellular target structure for NO, to exert its influence on RBC deformability, remains unknown. In the present study we analyzed the modification of RBC-NOS activity by pharmacological treatments, the resulting influence on RBC deformability and provide first evidence for possible target proteins of RBC-NOS-produced NO in the RBC cytoskeletal scaffold. Methods/Findings Blood from fifteen male subjects was incubated with the NOS substrate L-arginine to directly stimulate enzyme activity. Direct inhibition of enzyme activity was induced by L-N5-(1-Iminoethyl)-ornithin (L-NIO). Indirect stimulation and inhibition of RBC-NOS were achieved by applying insulin and wortmannin, respectively, substances known to affect PI3-kinase/Akt kinase pathway. The NO donor sodium nitroprusside (SNP) and the NO scavenger 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide (cPTIO) were additionally applied as NO positive and negative controls, respectively. Immunohistochemical staining was used to determine phosphorylation and thus activation of RBC-NOS. As a marker for NO synthesis nitrite was measured in plasma and RBCs using chemiluminescence detection. S-nitrosylation of erythrocyte proteins was determined by biotin switch assay and modified proteins were identified using LC-MS. RBC deformability was determined by ektacytometry. The data reveal that activated RBC-NOS leads to increased NO production, S-nitrosylation of RBC proteins and RBC deformability, whereas RBC-NOS inhibition resulted in contrary effects. Conclusion/Significance This study first-time provides strong evidence that RBC-NOS-produced NO modifies RBC deformability through direct S-nitrosylation of cytoskeleton proteins, most likely α- and β-spectrins. Our data, therefore, gain novel insights into biological functions of RBC-NOS by connecting impaired RBC deformability abilities to specific posttranslational modifications of RBC proteins. By identifying likely NO-target proteins in RBC, our results will stimulate new therapeutic approaches for patients with microvascular disorders.
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Affiliation(s)
- Marijke Grau
- Department of Molecular and Cellular Sport Medicine, German Sport University Cologne, Cologne, Germany.
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29
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van de Sandt AM, Windler R, Gödecke A, Ohlig J, Zander S, Reinartz M, Graf J, van Faassen EE, Rassaf T, Schrader J, Kelm M, Merx MW. Endothelial NOS (NOS3) impairs myocardial function in developing sepsis. Basic Res Cardiol 2013; 108:330. [PMID: 23397596 PMCID: PMC3597270 DOI: 10.1007/s00395-013-0330-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2012] [Revised: 12/07/2012] [Accepted: 01/14/2013] [Indexed: 01/23/2023]
Abstract
Endothelial nitric oxide synthase (NOS)3-derived nitric oxide (NO) modulates inotropic response and diastolic interval for optimal cardiac performance under non-inflammatory conditions. In sepsis, excessive NO production plays a key role in severe hypotension and myocardial dysfunction. We aimed to determine the role of NOS3 on myocardial performance, NO production, and time course of sepsis development. NOS3(-/-) and C57BL/6 wildtype mice were rendered septic by cecum ligation and puncture (CLP). Cardiac function was analyzed by serial echocardiography, in vivo pressure and isolated heart measurements. Cardiac output (CO) increased to 160 % of baseline at 10 h after sepsis induction followed by a decline to 63 % of baseline after 18 h in wildtype mice. CO was unaltered in septic NOS3(-/-) mice. Despite the hyperdynamic state, cardiac function and mean arterial pressure were impaired in septic wildtype as early as 6 h post CLP. At 12 h, cardiac function in septic wildtype was refractory to catecholamines in vivo and respective isolated hearts showed impaired pressure development and limited coronary flow reserve. Hemodynamics remained stable in NOS3(-/-) mice leading to significant survival benefit. Unselective NOS inhibition in septic NOS3(-/-) mice diminished this survival benefit. Plasma NO( x )- and local myocardial NO( x )- and NO levels (via NO spin trapping) demonstrated enhanced NO( x )- and bioactive NO levels in septic wildtype as compared to NOS3(-/-) mice. Significant contribution by inducible NOS (NOS2) during this early phase of sepsis was excluded. Our data suggest that NOS3 relevantly contributes to bioactive NO pool in developing sepsis resulting in impaired cardiac contractility.
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Affiliation(s)
- Annette M van de Sandt
- Division of Cardiology, Pneumology and Angiology, Department of Medicine, University Hospital Düsseldorf, Düsseldorf, Germany
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30
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Piknova B, Schechter AN. Measurement of nitrite in blood samples using the ferricyanide-based hemoglobin oxidation assay. Methods Mol Biol 2011; 704:39-56. [PMID: 21161628 PMCID: PMC3489475 DOI: 10.1007/978-1-61737-964-2_4] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Nitrite is currently recognized as a biomarker of the state of nitric oxide metabolism. Therefore, assessing nitrite levels in various organs and compartments is an important issue. As nitrite levels in most organs and tissues are low (in high nanomolar or low micromolar range) several new sensitive methods for quantifying nitrite in various biological samples have been developed. Chemiluminescence, combined with tri-iodide reducing solution, is currently considered the most sensitive method, allowing quantification in the low nanomolar range of nitrite concentrations. Here, we present an overview of chemiluminescence-based determination of nitrite in blood and blood compartments - red blood cells and plasma. We also explain how to preserve the original physiological nitrite concentration in nitrite-hostile environments, such as an excess of hemoglobin in blood.
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Affiliation(s)
- Barbora Piknova
- Molecular Medicine Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA.
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31
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Heusch P, Aker S, Boengler K, Deindl E, van de Sand A, Klein K, Rassaf T, Konietzka I, Sewell A, Menazza S, Canton M, Heusch G, Di Lisa F, Schulz R. Increased inducible nitric oxide synthase and arginase II expression in heart failure: no net nitrite/nitrate production and protein S-nitrosylation. Am J Physiol Heart Circ Physiol 2010; 299:H446-53. [PMID: 20511413 DOI: 10.1152/ajpheart.01034.2009] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Our objective was to address the balance of inducible nitric oxide (NO) synthase (iNOS) and arginase and their contribution to contractile dysfunction in heart failure (HF). Excessive NO formation is thought to contribute to contractile dysfunction; in macrophages, increased iNOS expression is associated with increased arginase expression, which competes with iNOS for arginine. With substrate limitation, iNOS may become uncoupled and produce reactive oxygen species (ROS). In rabbits, HF was induced by left ventricular (LV) pacing (400 beats/min) for 3 wk. iNOS mRNA [quantitative real-time PCR (qRT-PCR)] and protein expression (confocal microscopy) were detected, and arginase II expression was quantified with Western blot; serum arginine and myocardial nitrite and nitrate concentrations were determined by chemiluminescence, and protein S-nitrosylation with Western blot. Superoxide anions were quantified with dihydroethidine staining. HF rabbits had increased LV end-diastolic diameter [20.0 + or - 0.5 (SE) vs. 17.2 + or - 0.3 mm in sham] and decreased systolic fractional shortening (11.1 + or - 1.4 vs. 30.6 + or - 0.7% in sham; both P < 0.05). Myocardial iNOS mRNA and protein expression were increased, however, not associated with increased myocardial nitrite or nitrate concentrations or protein S-nitrosylation. The serum arginine concentration was decreased (124.3 + or - 5.6 vs. 155.4 + or - 12.0 micromol/l in sham; P < 0.05) at a time when cardiac arginase II expression was increased (0.06 + or - 0.01 vs. 0.02 + or - 0.01 arbitrary units in sham; P < 0.05). Inhibition of iNOS with 1400W attenuated superoxide anion formation and contractile dysfunction in failing hearts. Concomitant increases in iNOS and arginase expression result in unchanged NO species and protein S-nitrosylation; with substrate limitation, uncoupled iNOS produces superoxide anions and contributes to contractile dysfunction.
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Affiliation(s)
- Philipp Heusch
- Institute for Pathophysiology, Univ. of Essen Medical School, Hufelandstrasse 55, 45122 Essen, Germany
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