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Gyawali P, Lillicrap TP, Esperon CG, Bhattarai A, Bivard A, Spratt N. Whole Blood Viscosity and Cerebral Blood Flow in Acute Ischemic Stroke. Semin Thromb Hemost 2024; 50:580-591. [PMID: 37813371 DOI: 10.1055/s-0043-1775858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
Existing effective treatments for ischemic stroke restore blood supply to the ischemic region using thrombolysis or mechanical removal of clot. However, it is increasingly recognized that successful removal of occlusive thrombus from the large artery-recanalization, may not always be accompanied by successful restoration of blood flow to the downstream tissues-reperfusion. Ultimately, brain tissue survival depends on cerebral perfusion, and a functioning microcirculation. Because capillary diameter is often equal to or smaller than an erythrocyte, microcirculation is largely dependent on erythrocyte rheological (hemorheological) factors such as whole blood viscosity (WBV). Several studies in the past have demonstrated elevated WBV in stroke compared with healthy controls. Also, elevated WBV has shown to be an independent risk factor for stroke. Elevated WBV leads to endothelial dysfunction, decreases nitric oxide-dependent flow-mediated vasodilation, and promotes hemostatic alterations/thrombosis, all leading to microcirculation sludging. Compromised microcirculation further leads to decreased cerebral perfusion. Hence, modulating WBV through pharmacological agents might be beneficial to improve cerebral perfusion in stroke. This review discusses the effect of elevated WBV on endothelial function, hemostatic alterations, and thrombosis leading to reduced cerebral perfusion in stroke.
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Affiliation(s)
- Prajwal Gyawali
- Heart and Stroke Program, Hunter Medical Research Institute and School of Health and Medical Sciences, University of Southern Queensland, Toowoomba, Queensland, Australia
| | - Thomas P Lillicrap
- Heart and Stroke Program, Department of Neurology, Hunter Medical Research Institute, John Hunter Hospital, New Lambton Heights, New South Wales, Australia
| | - Carlos G Esperon
- Heart and Stroke Program, Department of Neurology, Hunter Medical Research Institute, John Hunter Hospital, New Lambton Heights, New South Wales, Australia
| | - Aseem Bhattarai
- Department of Biochemistry, Institute of Medicine, Kathmandu, Nepal
| | - Andrew Bivard
- Department of Neurology, Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Neil Spratt
- Heart and Stroke Program, Department of Neurology, Hunter Medical Research Institute, School of Biomedical Sciences and Pharmacy, University of Newcastle, John Hunter Hospital, New Lambton Heights, New South Wales, Australia
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Dey S, Chakraborty I, Biswas P, Paul A, Chakraborty P, Haldar R. Unmasking the morphological alteration of erythrocytes among women suffering from PCOS. Blood Cells Mol Dis 2024; 105:102821. [PMID: 38218172 DOI: 10.1016/j.bcmd.2023.102821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 12/27/2023] [Accepted: 12/28/2023] [Indexed: 01/15/2024]
Abstract
Dyslipidemia is frequently observed in polycystic ovarian syndrome (PCOS). Changes in plasma lipid levels potentially alter erythrocyte membrane lipid composition due to lack of inbuilt lipid synthesis machinery. Therefore, development of morphologically altered erythrocytes in PCOS patients with dyslipidemia is expected. However, this has not been established so far. So, we took this opportunity to explore the morphological alterations among dyslipidemic PCO women. We recruited thirty-five dyslipidemic PCOS women (satisfying Rotterdam criteria, without medication) and twenty-five age-matched healthy controls. Scanning electron microscopy revealed a significant increase in the number of stomatocytes, acanthocytes, and echinocytes in the PCO group. PCO group showed a considerable decrease in plasma antioxidant levels. Elevated lipid peroxidation, protein carbonylation, and decreased free thiol group in erythrocyte membrane in PCOS suggest oxidative degradation of the erythrocyte membrane. Elevated intracellular ROS levels, increased methemoglobin formation, and a decrease in NADPH methemoglobin reductase in PCOS also indicate altered physicochemical property of hemoglobin due to oxidative overload. Additionally, these patients exhibit a rise in erythrocyte membrane cholesterol and triglyceride, which promotes the membrane to become less fluidic and less fragile. Thus, these results corroborate a potential role in altering erythrocyte morphology among dyslipidemic PCO women.
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Affiliation(s)
- Sutithi Dey
- Department of Physiology, University of Calcutta, 92, A.P.C. Road, Kolkata 700 009, India
| | - Ipsita Chakraborty
- Department of Physiology, University of Calcutta, 92, A.P.C. Road, Kolkata 700 009, India
| | - Payel Biswas
- Department of Physiology, University of Calcutta, 92, A.P.C. Road, Kolkata 700 009, India
| | - Ayantika Paul
- Department of Physiology, University of Calcutta, 92, A.P.C. Road, Kolkata 700 009, India
| | - Pratip Chakraborty
- Department of Assisted Reproduction, Institute of Reproductive Medicine, Dr. B.N. Chakraborty Hospital, HB-36/A/3, 1st Cross Rd, HB Block, Sector III, Bidhannagar, Kolkata, West Bengal 700106, India
| | - Rajen Haldar
- Department of Physiology, University of Calcutta, 92, A.P.C. Road, Kolkata 700 009, India.
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Yu S, Ye Y, Wuren T, Yi H. Alteration in the number, morphology, function, and metabolism of erythrocytes in high-altitude polycythemia. Front Physiol 2024; 15:1359357. [PMID: 38426208 PMCID: PMC10902074 DOI: 10.3389/fphys.2024.1359357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 02/01/2024] [Indexed: 03/02/2024] Open
Abstract
Introduction: High-altitude polycythemia (HAPC) is a common chronic high-altitude disease characterized by significantly increased erythrocyte, hemoglobin (Hb), and hematocrit values and decreased arterial oxygen saturation. The mechanisms underlying HAPC development are unclear; we aimed to investigate this in an HAPC rat model. Methods: Twelve Sprague-Dawley rats were divided into control and HAPC groups. The HAPC group was exposed to hypobaric hypoxia. This HAPC model was assessed using routine blood tests and blood gas analyses. Bone marrow, peripheral blood reticulocytes (RETs), and peripheral blood erythrocyte apoptosis were measured using flow cytometry. Erythrocyte osmotic fragility (EOF) tests were conducted. Abnormal erythrocytes were counted using electron microscopy. Plasma-free hemoglobin, 5'-nucleotidase (CD73), adenosine, erythrocyte cytosolic adenosine, sphingosine-1-phosphate (S1P), and 2,3-bisphosphoglycerate (BPG) levels were measured using enzyme-linked immunosorbent assays. Erythrocyte metabolic pathway-related protein [adenosine A2B receptor (ADORA2B), erythrocyte equilibrative nucleoside transporter 1 (eENT1), sphingosine kinase 1 (SPHK1), phospho-SPHK1, bisphosphoglycerate mutase (BPGM), and glyceraldehyde 3-phosphate dehydrogenase (GAPDH)] levels were assessed by Western blotting. Results: The HAPC rat model was successfully established (Hb > 210 g/L). Indices of bone marrow and peripheral blood RET proportions were significantly higher in the HAPC than the control group (p = 0.04 and p < 0.001, respectively). The proportion of peripheral blood erythrocytes in early apoptosis was significantly lower in the HAPC than the control group (p < 0.001). Vesicular erythrocyte and acanthocyte proportions were significantly higher in the HAPC than the control group (p < 0.001 and p = 0.019, respectively). The EOF tests revealed that 50% erythrocyte hemolysis occurred at 4.0-4.5 and 4.5-5.0 g/L NaCl in the control and HAPC groups, respectively. Plasma-free hemoglobin, CD73, adenosine, erythrocyte cytosolic adenosine, S1P, and 2,3-BPG levels and ADORA2B, eENT1, phospho-SPHK1, S1P, BPGM, and GAPDH erythrocyte expression levels (all p ≤ 0.02) were significantly higher in the HAPC than the control group. Conclusion: In model rats, an HAPC-related erythrocyte increase was associated with enhanced bone marrow hematopoietic function and reduced erythrocyte apoptosis, whereas numerous abnormal erythrocytes, increased EOF, and reduced hemolysis resistance were associated with erythrocyte metabolism. CD73/adenosine/S1P/2,3-BPG and eENT1/adenosine/BPGM/2,3-BPG metabolic pathways in erythrocytes were activated in HAPC rats, facilitating oxygen release. These findings further reveal the intrinsic HAPC mechanism and forms a basis for future development of preventive and therapeutic strategies for HAPC.
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Affiliation(s)
- Song Yu
- College of Medicine, Southwest Jiaotong University, Chengdu, China
- Department of Hematology, Affiliated Hospital of Southwest Jiaotong University, The General Hospital of Western Theater Command, Chengdu, China
| | - Yi Ye
- Research Center for High Altitude Medicine, Qinghai University, Xining, China
| | - Tana Wuren
- Research Center for High Altitude Medicine, Qinghai University, Xining, China
| | - Hai Yi
- College of Medicine, Southwest Jiaotong University, Chengdu, China
- Department of Hematology, Affiliated Hospital of Southwest Jiaotong University, The General Hospital of Western Theater Command, Chengdu, China
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Altinel R, Kilic-Erkek O, Kilic-Toprak E, Ozhan B, Yildirim A, Bor-Kucukatay M. HIIT serves as an efficient training strategy for basketball players by improving blood fluidity and decreasing oxidative stress. Biorheology 2024; 59:81-96. [PMID: 38461496 DOI: 10.3233/bir-230024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
BACKGROUND A challenge for coaches and athletes is to find the best combination of exercises during training. Considering its favorable effects, HIIT has been very popular recently. OBJECTIVE The goal of this study was to investigate anthropometric features, performance, erythrocyte deformability, plasma viscosity (PV) and oxidative stress in response to acute and long-term (6 weeks) HIIT in adolescent basketball players. METHODS 22 sportsmen between the ages of 14-16 were included. Tabata protocol was applied to the HIIT group in addition to their routine training program 3 days/week, for 6 weeks. Erythrocyte deformability was determined using an ectacytometer (LORCA), PV with a rotational viscometer. Total oxidant status (TOS), total antioxidant status (TAS) were measured by kits. RESULTS HIIT for 6 weeks induced an improvement in performance tests and waist circumference. 6 weeks of HIIT resulted in a decrement, while the last exercise session yielded an increment in RBC deformability. PV and TOS of HIIT groups were decreased on the 6th week. CONCLUSIONS Our results demonstrate that, HIIT in addition to the routine exercise program is beneficial for improving performance and blood fluidity as well as decreasing oxidative stress in basketball players. Therefore, HIIT seems as an efficient training strategy for highly-trained individuals.
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Affiliation(s)
- Riza Altinel
- Department of Physiology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Ozgen Kilic-Erkek
- Department of Physiology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Emine Kilic-Toprak
- Department of Physiology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Bayram Ozhan
- Department of Pediatric Endocrinology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Ahmet Yildirim
- Department of Physiology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Melek Bor-Kucukatay
- Department of Physiology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
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Remigante A, Spinelli S, Patanè GT, Barreca D, Straface E, Gambardella L, Bozzuto G, Caruso D, Falliti G, Dossena S, Marino A, Morabito R. AAPH-induced oxidative damage reduced anion exchanger 1 (SLC4A1/AE1) activity in human red blood cells: protective effect of an anthocyanin-rich extract. Front Physiol 2023; 14:1303815. [PMID: 38111898 PMCID: PMC10725977 DOI: 10.3389/fphys.2023.1303815] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 11/22/2023] [Indexed: 12/20/2023] Open
Abstract
Introduction: During their lifespan in the bloodstream, red blood cells (RBCs) are exposed to multiple stressors, including increased oxidative stress, which can affect their morphology and function, thereby contributing to disease. Aim: This investigation aimed to explore the cellular and molecular mechanisms related to oxidative stress underlying anion exchanger 1 activity (band 3, SLC4A1/AE1) in human RBCs. To achieve this aim, the relationship between RBC morphology and functional and metabolic activity has been explored. Moreover, the potential protective effect of an anthocyanin-enriched fraction extracted from Callistemon citrinus flowers was studied. Methods: Cellular morphology, parameters of oxidative stress, as well as the anion exchange capability of band 3 have been analyzed in RBCs treated for 1 h with 50 mM of the pro-oxidant 2,2'-azobis (2-methylpropionamide)-dihydrochloride (AAPH). Before or after the oxidative insult, subsets of cells were exposed to 0.01 μg/mL of an anthocyanin-enriched fraction for 1 h. Results: Exposure to AAPH caused oxidative stress, exhaustion of reduced glutathione, and over-activation of the endogenous antioxidant machinery, resulting in morphological alterations of RBCs, specifically the formation of acanthocytes, increased lipid peroxidation and oxidation of proteins, as well as abnormal distribution and hyper-phosphorylation of band 3. Expected, oxidative stress was also associated with a decreased band 3 ion transport activity and an increase of oxidized haemoglobin, which led to abnormal clustering of band 3. Exposure of cells to the anthocyanin-enriched fraction prior to, but not after, oxidative stress efficiently counteracted oxidative stress-related alterations. Importantly, protection of band3 function from oxidative stress could only be achieved in intact cells and not in RBC ghosts. Conclusion: These findings contribute a) to clarify oxidative stress-related physiological and biochemical alterations in human RBCs, b) propose anthocyanins as natural antioxidants to neutralize oxidative stress-related modifications, and 3) suggest that cell integrity, and therefore a cytosolic component, is required to reverse oxidative stress-related pathophysiological derangements in human mature RBCs.
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Affiliation(s)
- Alessia Remigante
- Department of Chemical Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Sara Spinelli
- Department of Chemical Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Giuseppe Tancredi Patanè
- Department of Chemical Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Davide Barreca
- Department of Chemical Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Elisabetta Straface
- Biomarkers Unit, Center for Gender-Specific Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Lucrezia Gambardella
- Biomarkers Unit, Center for Gender-Specific Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Giuseppina Bozzuto
- National Center for Drug Research and Evaluation, Istituto Superiore di Sanità, Rome, Italy
| | - Daniele Caruso
- Complex Operational Unit of Clinical Pathology of Papardo Hospital, Messina, Italy
| | - Giuseppe Falliti
- Complex Operational Unit of Clinical Pathology of Papardo Hospital, Messina, Italy
| | - Silvia Dossena
- Institute of Pharmacology and Toxicology, Paracelsus Medical University, Salzburg, Austria
| | - Angela Marino
- Department of Chemical Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Rossana Morabito
- Department of Chemical Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
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Yuksel B, Arsal Yildirim S, Polat F. Erythrocyte morphology and fatigue levels in podologists. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2023; 33:1305-1315. [PMID: 35642692 DOI: 10.1080/09603123.2022.2084515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 05/27/2022] [Indexed: 06/15/2023]
Abstract
Aesthetic and clinical care of the feet includes reducing nail thickness and removing calluses which are perfomed by high-speed nail drill machines. These micromotors diffuse skin material, nail dust, and pathogenic fungi into the air, some of which are then inhaled and causes an occupational risk to workers. This study examines occupational risks of inhaling organic dust in the working environment of Podologists (PDL) through their erythrocyte morphologies. Chalder Fatigue Scale was used to determine fatigue symptoms of the participants related to occupational exposures. 25 PDL and 26 control subjects were compared. Peripheral smear technique was used to identify erythrocyte morphologies. The results demonstrated that physical, mental, total fatigue levels, and erythrocyte anomaly amounts of the individuals in the PDL group were higher (p < .05). Findings also revealed that fatigue effectively formed Hypochromic, Stomatocytes, Dacrocytes, Elliptocytes, Spherocytes, and Ovalocytes. This study aims to increase awareness of podologists' occupational risks..
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Affiliation(s)
- Burcu Yuksel
- Vocational School of Kocaeli Health Services, Kocaeli University
| | | | - Fikriye Polat
- Elementary Sciences Education, Faculty of Education, Kocaeli University
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Bosek M, Wybranowski T, Napiórkowska-Mastalerz M, Pyskir J, Cyrankiewicz M, Pyskir M, Pilaczyńska-Cemel M, Szołna-Chodór A, Wrembel M, Kruszewski S, Przybylski G. The Impact of COVID-19 on Cellular Factors Influencing Red Blood Cell Aggregation Examined in Dextran: Possible Causes and Consequences. Int J Mol Sci 2023; 24:14952. [PMID: 37834401 PMCID: PMC10573242 DOI: 10.3390/ijms241914952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/02/2023] [Accepted: 10/03/2023] [Indexed: 10/15/2023] Open
Abstract
Several studies have indicated that COVID-19 can lead to alterations in blood rheology, including an increase in red blood cell aggregation. The precise mechanisms behind this phenomenon are not yet fully comprehended. The latest findings suggest that erythrocyte aggregation significantly influences microcirculation, causes the formation of blood clots in blood vessels, and even damages the endothelial glycocalyx, leading to endothelial dysfunction. The focus of this research lies in investigating the cellular factors influencing these changes in aggregation and discussing potential causes and implications in the context of COVID-19 pathophysiology. For this purpose, the aggregation of erythrocytes in a group of 52 patients with COVID-19 pneumonia was examined in a 70 kDa Dextran solution, which eliminates the influence of plasma factors. Using image analysis, the velocities and sizes of the formed aggregates were investigated, determining their porosity. This study showed that the process of erythrocyte aggregation in COVID-19 patients, independent of plasma factors, leads to the formation of more compact, denser, three-dimensional aggregates. These aggregates may be less likely to disperse under circulatory shear stress, increasing the risk of thrombotic events. This study also suggests that cellular aggregation factors can be responsible for the thrombotic disorders observed long after infection, even when plasma factors have normalized. The results and subsequent broad discussion presented in this study can contribute to a better understanding of the potential complications associated with increased erythrocyte aggregation.
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Affiliation(s)
- Maciej Bosek
- Department of Biophysics, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland; (M.B.)
| | - Tomasz Wybranowski
- Department of Biophysics, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland; (M.B.)
| | - Marta Napiórkowska-Mastalerz
- Department of Biophysics, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland; (M.B.)
| | - Jerzy Pyskir
- Department of Biophysics, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland; (M.B.)
| | - Michał Cyrankiewicz
- Department of Biophysics, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland; (M.B.)
| | - Małgorzata Pyskir
- Department of Rehabilitation, Faculty of Health Sciences, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland;
| | - Marta Pilaczyńska-Cemel
- Department of Lung Diseases, Neoplasms and Tuberculosis, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland
| | - Alicja Szołna-Chodór
- Department of Biophysics, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland; (M.B.)
| | - Mateusz Wrembel
- Department of Lung Diseases, Neoplasms and Tuberculosis, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland
| | - Stefan Kruszewski
- Department of Biophysics, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland; (M.B.)
| | - Grzegorz Przybylski
- Department of Lung Diseases, Neoplasms and Tuberculosis, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland
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Spinelli S, Straface E, Gambardella L, Caruso D, Falliti G, Remigante A, Marino A, Morabito R. Aging Injury Impairs Structural Properties and Cell Signaling in Human Red Blood Cells; Açaì Berry Is a Keystone. Antioxidants (Basel) 2023; 12:antiox12040848. [PMID: 37107223 PMCID: PMC10135063 DOI: 10.3390/antiox12040848] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 03/23/2023] [Accepted: 03/29/2023] [Indexed: 04/05/2023] Open
Abstract
Red blood cell (RBC) deformability is the ability of cells to modulate their shape to ensure transit through narrow capillaries of the microcirculation. A loss of deformability can occur in several pathological conditions, during natural RBC aging through an increase in membrane protein phosphorylation, and/or through the structural rearrangements of cytoskeletal proteins due to oxidative conditions, with a key role played by band 3. Due to the close relationship between aging and oxidative stress, flavonoid-rich foods are good candidates to counteract age-related alterations. This study aims to verify the beneficial role of Açaì extract in a d-Galactose (d-Gal)-induced model of aging in human RBCs. To this end, band 3 phosphorylation and structural rearrangements in membrane cytoskeleton-associated proteins, namely spectrin, ankyrin, and/or protein 4.1, are analyzed in RBCs treated with 100 mM d-Gal for 24 h, with or without pre-incubation with 10 μg/mL Açaì extract for 1 h. Furthermore, RBC deformability is also measured. Tyrosine phosphorylation of band 3, membrane cytoskeleton-associated proteins, and RBC deformability (elongation index) are analyzed using western blotting analysis, FACScan flow cytometry, and ektacytometry, respectively. The present data show that: (i) Açaì berry extract restores the increase in band 3 tyrosine phosphorylation and Syk kinase levels after exposure to 100 mM d-Gal treatment; and (ii) Açaì berry extract partially restores alterations in the distribution of spectrin, ankyrin, and protein 4.1. Interestingly, the significant decrease in membrane RBC deformability associated with d-Gal treatment is alleviated by pre-treatment with Açaì extract. These findings further contribute to clarify mechanisms of natural aging in human RBCs, and propose flavonoid substances as potential natural antioxidants for the treatment and/or prevention of oxidative-stress-related disease risk.
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Affiliation(s)
- Sara Spinelli
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98122 Messina, Italy
| | - Elisabetta Straface
- Biomarkers Unit, Center for Gender-Specific Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy
| | - Lucrezia Gambardella
- Biomarkers Unit, Center for Gender-Specific Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy
| | - Daniele Caruso
- Complex Operational Unit of Clinical Pathology of Papardo Hospital, 98166 Messina, Italy
| | - Giuseppe Falliti
- Complex Operational Unit of Clinical Pathology of Papardo Hospital, 98166 Messina, Italy
| | - Alessia Remigante
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98122 Messina, Italy
| | - Angela Marino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98122 Messina, Italy
| | - Rossana Morabito
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98122 Messina, Italy
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Scanning Electron and Atomic Force Microscopic Analysis of Erythrocytes in a Cohort of Atopic Asthma Patients—A Pilot Study. HEMATO 2023. [DOI: 10.3390/hemato4010009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Background: Non-communicable diseases are often associated with chronic inflammation, placing patients suffering from these conditions at a higher risk of thrombosis and other complications. The pathophysiology of asthma and/or atopic asthma is also linked to chronic inflammation, which consequently may alter blood parameters including erythrocyte structure and function. Methodology: The objective of this study was to evaluate differences in erythrocytes between patients with atopic asthma (n = 30) and healthy individuals (n = 30) by evaluating routine haematological parameters; structures and axial ratios of erythrocytes using light microscopy; erythrocyte membrane elasticity using atomic force microscopy; and erythrocyte ultrastructure using scanning electron microscopy. Results: The haematological findings of healthy participants and patients suffering from asthma were within normal clinical ranges together with significantly higher levels of circulating monocytes (p = 0.0066), erythrocytes (p = 0.0004), haemoglobin (p = 0.0057), and haematocrit (p = 0.0049) in asthma patients. The analysis of eosin-stained erythrocytes by light microscopy showed more echinocytes, acanthocytes, and ovalocytes compared to controls and a significant difference in axial ratios (p < 0.0001). Atomic force microscopy findings showed reduced erythrocyte membrane elasticity in asthmatic erythrocytes (p = 0.001). Ultrastructural differences in erythrocytes were visible in the asthma group compared to controls. Conclusion: Altered erythrocyte ultrastructural morphology and a significant change in the haematological profile are evident in atopic asthma and may influence common complications associated with asthma. The impact of these changes on the physiological mechanisms of coagulation and the pathophysiology of asthma needs to be further elucidated.
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10
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Importance of hematological markers in familial Mediterranean fever in terms of disease severity and amyloidosis. Rheumatol Int 2023; 43:1313-1321. [PMID: 36879026 DOI: 10.1007/s00296-023-05290-w] [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: 12/21/2022] [Accepted: 02/17/2023] [Indexed: 03/08/2023]
Abstract
There are limited follow-up parameters for familial Mediterranean fever (FMF) related to disease severity and amyloidosis. Some hematological markers are emerging to assess inflammation. In this study, we hypothesized that some hematological parameters could be used to determine disease severity and amyloidosis in FMF. We included 274 adult FMF patients, and evaluated the relationship between neutrophil lymphocyte ratio (NLR), monocyte-lymphocyte ratio (MLR) and platelet-lymphocyte ratio (PLR), platelet counts and leukocyte counts, mean erythrocyte haemoglobin concentration (MCHC) and mean erythrocyte haemoglobin (MCH) with disease severity and amyloidosis. First, we classified patients according to disease severity and presence of amyloidosis. We then compared the parameters within the groups. In addition, we determined predictive cut-off values with ROC analysis. Finally, we correlated the change in ISSF scores with the change in hematological parameters of 52 patients with follow-up hematological indices after six months. The patients with severe-moderate group had higher CRP levels (p < 0.001), white blood cell (p = 0.002) and neutrophil counts (p = 0.004) and, conversely, lower MCHC levels (p = 0.001) than patients with mild disease severity. FMF patients with amyloidosis had higher neutrophil (p = 0.04) and monocyte count (p = 0.02), increased NLR (p = 0.01) and lower MLR (p = 0.02) levels than those without. In addition, MCHC levels were also lower in the severe-moderate group in the follow-up analyses after sixth months (p = 0.03). MCHC, neutrophil and monocyte counts, NLR, MLR may be associated with poor prognosis in FMF patients. These parameters can be used in conjunction with acute phase reactant and clinical features to assess disease status.
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Sayed AEDH, Hamed M, El-Sayed AAA, Nunes B, Soliman HAM. The mitigating effect of Spirulina (Arthrospira platensis) on the hemotoxicity of gibberellic acid on juvenile tilapia (Oreochromis niloticus). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:25701-25711. [PMID: 36346524 PMCID: PMC9995583 DOI: 10.1007/s11356-022-23844-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 10/22/2022] [Indexed: 06/16/2023]
Abstract
The use of plant growth regulators has led to environmental contamination of water bodies that occur adjacent to agricultural areas. Some of these chemicals are bioactive, not only to plants, but also to non-target exposed biota, namely of the aquatic compartment. Previous work demonstrated the establishment of hepato- and nephrotoxic effects in juvenile tilapia (Oreochromis niloticus) exposed via aquatic media to gibberellic acid (GA3), which is among the most used plant growth regulators, in agricultural practices. Here, we investigated the effect of GA3 on hematological indices, poikilocytosis, nuclear abnormalities, and genotoxic indices measured in Nile tilapia (Oreochromis niloticus), as well as the putative protective effects of dietary supplementation of Spirulina (Arthrospira platensis). Fish were evenly assorted into 5 groups: group I served as a control, and groups II-V were fed diets supplemented with Spirulina at rates of 0 g/kg, 5 g/kg, 20 g/kg, and 100 g/kg, respectively, for 2 months before being exposed to 150 mg/L GA3. The results revealed that GA3 exposure decreased significantly all hematological indices (P < 0.05), except leucocytes and mean corpuscular hemoglobin concentration (MCHC), compared to the control group (P > 0.05). GA3 exposure increased significantly the percentage of nuclear abnormalities, altered erythrocytes and the percentages of tail DNA, compared to the control group (P < 0.05). Spirulina supplementation restored the hematological, poikilocytosis, nuclear abnormalities, and the percentages of tail DNA to near normal levels. The 100 g/kg SP treatment was the most effective in attaining such effect, showing concentration-dependency. The present study reinforces our findings of the toxicity of GA3 on O. niloticus and suggests that the addition of Spirulina to fish diet can mitigate the hemotoxic effects of GA3.
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Affiliation(s)
- Alaa El-Din H Sayed
- Zoology Department, Faculty of Science, Assiut University, Assiut, 71516, Egypt.
| | - Mohamed Hamed
- Zoology Department, Faculty of Science, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
| | - Abdelaziz A A El-Sayed
- Zoology Department, Faculty of Science, Zagazig University, Zagazig, 44519, Egypt
- Zoology Department, Faculty of Science, Islamic University of Madinah, Medina, 42238, Saudi Arabia
| | - Bruno Nunes
- Centro de Estudos Do Ambiente E Do Mar (CESAM), Universidade de Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
- Departamento de Biologia, Universidade de Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Hamdy A M Soliman
- Zoology Department, Faculty of Science, Sohag University, Sohag, 8562, Egypt
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12
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Mercury Chloride Affects Band 3 Protein-Mediated Anionic Transport in Red Blood Cells: Role of Oxidative Stress and Protective Effect of Olive Oil Polyphenols. Cells 2023; 12:cells12030424. [PMID: 36766766 PMCID: PMC9913727 DOI: 10.3390/cells12030424] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/19/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023] Open
Abstract
Mercury is a toxic heavy metal widely dispersed in the natural environment. Mercury exposure induces an increase in oxidative stress in red blood cells (RBCs) through the production of reactive species and alteration of the endogenous antioxidant defense system. Recently, among various natural antioxidants, the polyphenols from extra-virgin olive oil (EVOO), an important element of the Mediterranean diet, have generated growing interest. Here, we examined the potential protective effects of hydroxytyrosol (HT) and/or homovanillyl alcohol (HVA) on an oxidative stress model represented by human RBCs treated with HgCl2 (10 µM, 4 h of incubation). Morphological changes as well as markers of oxidative stress, including thiobarbituric acid reactive substance (TBARS) levels, the oxidation of protein sulfhydryl (-SH) groups, methemoglobin formation (% MetHb), apoptotic cells, a reduced glutathione/oxidized glutathione ratio, Band 3 protein (B3p) content, and anion exchange capability through B3p were analyzed in RBCs treated with HgCl2 with or without 10 μM HT and/or HVA pre-treatment for 15 min. Our data show that 10 µM HT and/or HVA pre-incubation impaired both acanthocytes formation, due to 10 µM HgCl2, and mercury-induced oxidative stress injury and, moreover, restored the endogenous antioxidant system. Interestingly, HgCl2 treatment was associated with a decrease in the rate constant for SO42- uptake through B3p as well as MetHb formation. Both alterations were attenuated by pre-treatment with HT and/or HVA. These findings provide mechanistic insights into benefits deriving from the use of naturally occurring polyphenols against oxidative stress induced by HgCl2 on RBCs. Thus, dietary supplementation with polyphenols might be useful in populations exposed to HgCl2 poisoning.
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Zinellu A, Mangoni AA. The Emerging Clinical Significance of the Red Cell Distribution Width as a Biomarker in Chronic Obstructive Pulmonary Disease: A Systematic Review. J Clin Med 2022; 11:jcm11195642. [PMID: 36233510 PMCID: PMC9571455 DOI: 10.3390/jcm11195642] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/22/2022] [Accepted: 09/22/2022] [Indexed: 11/16/2022] Open
Abstract
There is an intense focus on the identification of novel biomarkers of chronic obstructive pulmonary disease (COPD) to enhance clinical decisions in patients with stable disease and acute exacerbations (AECOPD). Though several local (airway) and circulatory inflammatory biomarkers have been proposed, emerging evidence also suggests a potential role for routine haematological parameters, e.g., the red cell distribution width (RDW). We conducted a systematic literature search in PubMed, Web of Science, and Scopus, from inception to April 2022, for articles investigating the diagnostic and prognostic role of the RDW in stable COPD and AECOPD. The risk of bias was assessed using the Joanna Briggs Institute Critical Appraisal Checklist. Significant associations between the RDW and the presence and severity of disease, outcomes (mortality, hospital readmission), and other relevant clinical parameters (right heart failure, pulmonary arterial hypertension) were reported in 13 out of 16 studies in stable COPD (low risk of bias in 11 studies), and 17 out of 21 studies of AECOPD (low risk of bias in 11 studies). Pending further research, our systematic review suggests that the RDW might be useful, singly or in combination with other parameters, for the diagnosis and risk stratification of patients with stable COPD and AECOPD (PROSPERO registration number: CRD42022348304).
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Affiliation(s)
- Angelo Zinellu
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
| | - Arduino A. Mangoni
- Discipline of Clinical Pharmacology, College of Medicine and Public Health, Flinders University, Sturt Road, Bedford Park, SA 5042, Australia
- Department of Clinical Pharmacology, Flinders Medical Centre, Southern Adelaide Local Health Network, Flinders Drive, Bedford Park, SA 5042, Australia
- Correspondence:
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14
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Remigante A, Spinelli S, Straface E, Gambardella L, Caruso D, Falliti G, Dossena S, Marino A, Morabito R. Antioxidant Activity of Quercetin in a H2O2-Induced Oxidative Stress Model in Red Blood Cells: Functional Role of Band 3 Protein. Int J Mol Sci 2022; 23:ijms231910991. [PMID: 36232293 PMCID: PMC9569818 DOI: 10.3390/ijms231910991] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/15/2022] [Accepted: 09/15/2022] [Indexed: 12/12/2022] Open
Abstract
During their lifespan, red blood cells (RBCs) are exposed to a large number of stressors and are therefore considered as a suitable model to investigate cell response to oxidative stress (OS). This study was conducted to evaluate the potential beneficial effects of the natural antioxidant quercetin (Q) on an OS model represented by human RBCs treated with H2O2. Markers of OS, including % hemolysis, reactive oxygen species (ROS) production, thiobarbituric acid reactive substances (TBARS) levels, oxidation of protein sulfhydryl groups, CD47 and B3p expression, methemoglobin formation (% MetHb), as well as the anion exchange capability through Band 3 protein (B3p) have been analyzed in RBCs treated for 1 h with 20 mM H2O2 with or without pre-treatment for 1 h with 10 μM Q, or in RBCs pre-treated with 20 mM H2O2 and then exposed to 10 µM Q. The results show that pre-treatment with Q is more effective than post-treatment to counteract OS in RBCs. In particular, pre-exposure to Q avoided morphological alterations (formation of acanthocytes), prevented H2O2-induced OS damage, and restored the abnormal distribution of B3p and CD47 expression. Moreover, H2O2 exposure was associated with a decreased rate constant of SO42− uptake via B3p, as well as an increased MetHb formation. Both alterations have been attenuated by pre-treatment with 10 μM Q. These results contribute (1) to elucidate OS-related events in human RBCs, (2) propose Q as natural antioxidant to counteract OS-related alterations, and (3) identify B3p as a possible target for the treatment and prevention of OS-related disease conditions or aging-related complications impacting on RBCs physiology.
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Affiliation(s)
- Alessia Remigante
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98122 Messina, Italy
| | - Sara Spinelli
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98122 Messina, Italy
- Institute of Pharmacology and Toxicology, Paracelsus Medical University, 5020 Salzburg, Austria
| | - Elisabetta Straface
- Biomarkers Unit, Center for Gender-Specific Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy
| | - Lucrezia Gambardella
- Biomarkers Unit, Center for Gender-Specific Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy
| | - Daniele Caruso
- Complex Operational Unit of Clinical Pathology, Papardo Hospital, 98122 Messina, Italy
| | - Giuseppe Falliti
- Complex Operational Unit of Clinical Pathology, Papardo Hospital, 98122 Messina, Italy
| | - Silvia Dossena
- Institute of Pharmacology and Toxicology, Paracelsus Medical University, 5020 Salzburg, Austria
| | - Angela Marino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98122 Messina, Italy
| | - Rossana Morabito
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98122 Messina, Italy
- Correspondence:
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Remigante A, Spinelli S, Straface E, Gambardella L, Caruso D, Falliti G, Dossena S, Marino A, Morabito R. Açaì (Euterpe oleracea) Extract Protects Human Erythrocytes from Age-Related Oxidative Stress. Cells 2022; 11:cells11152391. [PMID: 35954235 PMCID: PMC9368007 DOI: 10.3390/cells11152391] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 07/28/2022] [Accepted: 08/02/2022] [Indexed: 02/07/2023] Open
Abstract
Aging is a process characterised by a general decline in physiological functions. The high bioavailability of reactive oxygen species (ROS) plays an important role in the aging rate. Due to the close relationship between aging and oxidative stress (OS), functional foods rich in flavonoids are excellent candidates to counteract age-related changes. This study aimed to verify the protective role of Açaì extract in a d-Galactose (d-Gal)-induced model of aging in human erythrocytes. Markers of OS, including ROS production, thiobarbituric acid reactive substances (TBARS) levels, oxidation of protein sulfhydryl groups, as well as the anion exchange capability through Band 3 protein (B3p) and glycated haemoglobin (A1c) have been analysed in erythrocytes treated with d-Gal for 24 h, with or without pre-incubation for 1 h with 0.5–10 µg/mL Açaì extract. Our results show that the extract avoided the formation of acanthocytes and leptocytes observed after exposure to 50 and 100 mM d-Gal, respectively, prevented d-Gal-induced OS damage, and restored alterations in the distribution of B3p and CD47 proteins. Interestingly, d-Gal exposure was associated with an acceleration of the rate constant of SO42− uptake through B3p, as well as A1c formation. Both alterations have been attenuated by pre-treatment with the Açaì extract. These findings contribute to clarify the aging mechanisms in human erythrocytes and propose functional foods rich in flavonoids as natural antioxidants for the treatment and prevention of OS-related disease conditions.
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Affiliation(s)
- Alessia Remigante
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (A.R.); (S.S.); (A.M.)
| | - Sara Spinelli
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (A.R.); (S.S.); (A.M.)
- Institute of Pharmacology and Toxicology, Paracelsus Medical University, 5020 Salzburg, Austria;
| | - Elisabetta Straface
- Biomarkers Unit, Center for Gender-Specific Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (E.S.); (L.G.)
| | - Lucrezia Gambardella
- Biomarkers Unit, Center for Gender-Specific Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (E.S.); (L.G.)
| | - Daniele Caruso
- Complex Operational Unit of Clinical Pathology of Papardo Hospital, 98166 Messina, Italy; (D.C.); (G.F.)
| | - Giuseppe Falliti
- Complex Operational Unit of Clinical Pathology of Papardo Hospital, 98166 Messina, Italy; (D.C.); (G.F.)
| | - Silvia Dossena
- Institute of Pharmacology and Toxicology, Paracelsus Medical University, 5020 Salzburg, Austria;
| | - Angela Marino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (A.R.); (S.S.); (A.M.)
| | - Rossana Morabito
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (A.R.); (S.S.); (A.M.)
- Correspondence:
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16
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In vitro effect of high glucose concentrations on erythrocyte morphology assessed by scanning electron microscopy. Micron 2021; 154:103179. [PMID: 34895961 DOI: 10.1016/j.micron.2021.103179] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 11/04/2021] [Accepted: 11/04/2021] [Indexed: 11/23/2022]
Abstract
AIMS To evaluate the in vitro effect of different glucose concentrations and the time series in erythrocyte cell viability and morphology parameters. METHODS Different glucose concentrations were assessed, from a normal physiological glucose concentration (5 mM) to a diabetes scenario (100 mM). Cell viability was obtained by the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide) assay. The erythrocyte morphology (diameter, height, and axial ratio) was assessed by scanning electron microscopy (SEM). RESULTS A significant decrease in cell viability was observed in erythrocytes with higher glucose concentration (100 mM). There was also a significant increase in the cells' diameter and height exposed to 100 mM, vs. those cultured with 5, 20, and 45 mM glucose, but only at 24 and 48 h. When comparing the same glucose concentration by a time series, it was observed that erythrocytes from the culture with 45 and 100 mM of glucose had a significant continuous decrease (approximately -0.40 μm) in diameter and height (24, 48, and 72 h), but there was no difference in the axial ratio observed. CONCLUSION Continuous exposure to high glucose concentrations in diabetes models produced less cell viability and changes in erythrocyte morphology (larger and scrambled cells), which in vivo might impact in microvascular complications.
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17
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Changes in Leukogram and Erythrogram Results in Bitches with Vaginitis. Animals (Basel) 2021; 11:ani11051403. [PMID: 34069046 PMCID: PMC8156665 DOI: 10.3390/ani11051403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 04/27/2021] [Accepted: 05/10/2021] [Indexed: 11/17/2022] Open
Abstract
Simple Summary Inflammatory diseases of the reproductive tract of bitches are a common problem in veterinary practice. Vaginitis, which is an inflammation of the vagina, may have various causes and degrees of severity. The aim of this study was to analyze whether the inflammation of the vagina in dogs causes changes in the parameters of white blood cells (leukogram, which is the percentage of individual types of white blood cells) and red blood cells (erythrogram, changes in the shape of erythrocytes). The obtained results suggest that leukogram and erythrogram analyses may be useful diagnostic tools in veterinary practice. Abstract Vaginitis in female dogs is a problem most veterinarians face in their practice. It manifests as localized inflammation, and its variable etiology and different severities often make diagnosis problematic. The study consisted of comparing blood smears taken from 16 animals: 8 healthy bitches and 8 bitches with confirmed vaginitis. We analyzed the percentage of different types of white blood cells (leukogram) and changes in the shape of red blood cells (erythrogram) in both groups. We observed changes in red blood cell morphology, i.e., a higher percentage of lacrimocytes and schistocytes in female dogs with vaginitis compared to their healthy counterparts. The observed hematological changes may illustrate the severity of inflammation. The analysis of erythrograms showed a significantly higher percentage of lacrimocytes and schistocytes in diseased bitches (1.58 ± 1.19% and 0.13 ± 0.12%) compared to healthy animals (0.58 ± 0.38 and 0.00 ± 0.00, respectively). The obtained results may indicate that the analysis of erythrograms throughout the course of vaginitis in bitches may constitute a diagnostic tool, as opposed to the analysis of leukograms, which is more sensitive when it comes to the systemic inflammatory response of the organism. It seems that simultaneous analysis of erythrograms and leukograms may facilitate the diagnostic process in clinical practice.
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18
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Nwose EU, Bwititi PT. Autophagy in Diabetes Pathophysiology: Oxidative Damage Screening as Potential for Therapeutic Management by Clinical Laboratory Methods. Front Cell Dev Biol 2021; 9:651776. [PMID: 33987179 PMCID: PMC8110823 DOI: 10.3389/fcell.2021.651776] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/31/2021] [Indexed: 12/11/2022] Open
Affiliation(s)
- Ezekiel Uba Nwose
- School of Community Health, Charles Sturt University, Orange, NSW, Australia.,Department of Public and Community Health, Novena University, Kwale, Nigeria
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Loyola-Leyva A, Loyola-Rodríguez JP, Terán-Figueroa Y, Camacho-Lopez S, González FJ, Barquera S. Application of atomic force microscopy to assess erythrocytes morphology in early stages of diabetes. A pilot study. Micron 2020; 141:102982. [PMID: 33227627 DOI: 10.1016/j.micron.2020.102982] [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: 07/24/2020] [Revised: 11/04/2020] [Accepted: 11/05/2020] [Indexed: 10/23/2022]
Abstract
The study aim was to assess the application of atomic force microscopy (AFM) to evaluate erythrocyte morphology in early stages of type 2 diabetes mellitus, and the association with biochemical, anthropometric, diet, and physical activity indicators. This was a pilot cross-sectional study with four groups: healthy individuals, people with prediabetes (PDG), metabolic syndrome (MSG), and diabetes mellitus group (DMG). Blood samples were obtained to assess the erythrocyte morphology and biochemical parameters. Anthropometrical measurements were taken. Besides, a diet and a physical activity questionnaire were applied. The evaluation of the erythrocyte morphology through the AFM showed quantitative and qualitative alterations in the cell's form and size. Compared to the healthy group, the PDG had a reduction in height (-0.80 μm, p < 0.05), and an increase in axial ratio (-0.09 μm, p < 0.05); the MSG had lower concave depth (-0.19 μm, p < 0.05); and the DMG had a decreased height (-0.46 μm, p < 0.05) and concave depth (-0.29 μm, p < 0.05), and higher axial ratio (+0.08 μm) and thickness (+0.32 μm, p < 0.05). The PDG vs. DMG had a statistically significant difference in concave depth (+0.23 μm, p < 0.05) and thickness (-0.26 μm, p < 0.05). The MSG was different than the DMG in variables like axial ratio (-0.05 μm) and thickness (-0.25 μm). Besides, higher values of age, HbA1c, triglycerides, body mass index, waist-to-hip ratio, and physical inactivity were associated with altered erythrocyte morphology. AFM is a promising instrument to assess early but subtle changes in erythrocyte morphology (height, axial ratio, concave depth, thickness) before significant pathological conditions, such as type 2 diabetes mellitus. HbA1c might have a major effect in altered morphology, vs. metabolic parameters like high triglycerides, body mass index, waist, and physical inactivity.
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Affiliation(s)
- Alejandra Loyola-Leyva
- Coordination for Innovation and Application of Science and Technology (Coordinación para la Innovación y Aplicación de la Ciencia y Tecnología, CIACyT), Avenida Sierra Leona 550, Lomas 2ª sección, 78210, San Luis Potosí, S.L.P, Mexico.
| | - Juan Pablo Loyola-Rodríguez
- Faculty of Dentistry, Popular Autonomous University of the State of Puebla, 21 sur 1103, Barrio de Santiago, 72410, Puebla, Puebla, Mexico.
| | - Yolanda Terán-Figueroa
- Faculty of Nursing and Nutrition, Autonomous University of San Luis Potosí (Universidad Autónoma de San Luis Potosí), Lateral Av. Salvador Nava, Lomas, 78290, San Luis Potosí, S.L.P, Mexico.
| | - Santiago Camacho-Lopez
- Department of Optics, Center for Scientific Research and Higher Education of Ensenada (Centro de Investigación Científica y de Educación Superior de Ensenada, CICESE), Carretera Ensenada-Tijuana 3918. Zona Playitas, Ensenada, Baja California, Mexico.
| | - Francisco Javier González
- Coordination for Innovation and Application of Science and Technology (Coordinación para la Innovación y Aplicación de la Ciencia y Tecnología, CIACyT), Avenida Sierra Leona 550, Lomas 2ª sección, 78210, San Luis Potosí, S.L.P, Mexico.
| | - Simón Barquera
- Center for Nutrition and Health Research. National Institute of Public Health. Address: Av. Universidad No.655 Col Sta. Ma. Ahuacatitlán. Cuernavaca, Morelos, Mexico.
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20
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Janse van Rensburg M, van Rooy MJ, Bester MJ, Oberholzer HM. Ultrastructural alterations of whole blood by copper, manganese and mercury metal mixtures using a chronic in vivo model of coagulation. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2020; 75:103314. [PMID: 31881365 DOI: 10.1016/j.etap.2019.103314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 10/18/2019] [Accepted: 12/12/2019] [Indexed: 06/10/2023]
Abstract
Globally, contamination of drinking water by heavy metals is increasing and poses a potential hazard to human health. Data on heavy metal mixtures and their effects on thrombosis are limited. The objective of this study was to determine the in vivo effects that copper, manganese and mercury, alone and in mixtures, have on clotting potential. Forty-eight male Sprague-Dawley rats were divided into eight groups, dependent on the type of heavy metal/s administered. The dosages were calculated at X100 the World Health Organisation limits in drinking water and orally administered for 28 days, at the University of Pretoria in 2018. Heavy metal induced morphological alterations of erythrocytes, platelets and fibrin networks were evaluated, using scanning electron microscopy. The manganese and mercury mixture had the greatest thrombotic potential by inducing acanthocyte and echinocyte formation, generating highly activated platelets with spontaneous fibrin formation and forming a disorganised fibrin network. In conclusion, chronic or single high dosage exposure to these heavy metals can potentially induce or contribute to thrombosis.
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Affiliation(s)
- Maxine Janse van Rensburg
- Department of Anatomy, Faculty of Health Sciences, University of Pretoria, Private Bag X323, Arcadia 0007, South Africa.
| | - Mia-Jeanne van Rooy
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Private Bag X323, Arcadia 0007, South Africa.
| | - Megan Jean Bester
- Department of Anatomy, Faculty of Health Sciences, University of Pretoria, Private Bag X323, Arcadia 0007, South Africa.
| | - Hester Magdalena Oberholzer
- Department of Anatomy, Faculty of Health Sciences, University of Pretoria, Private Bag X323, Arcadia 0007, South Africa.
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de Villiers S, Bester J, Kell DB, Pretorius E. A Possible Role of Amyloidogenic Blood Clotting in the Evolving Haemodynamics of Female Migraine-With-Aura: Results From a Pilot Study. Front Neurol 2019; 10:1262. [PMID: 31849822 PMCID: PMC6887655 DOI: 10.3389/fneur.2019.01262] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 11/13/2019] [Indexed: 01/27/2023] Open
Abstract
Introduction: Migraine is a debilitating primary headache disorder with a poorly understood aetiology. An extensive body of literature supports the theory of migraine as a systemic vascular inflammatory disorder characterised by endothelial dysfunction. It is also well-known that chronic inflammation results in an excessive burden of oxidative stress and therefore cellular dysfunction. In this study the effects of excessive oxidative stress through the phases of female migraine-with-aura (FMA) were evaluated by examining the health of the systems of haemostasis. Methods: Blood was obtained from 11 FMA patients at baseline and during the headache phase of migraine, as well as from 8 healthy age-matched female controls. Samples were analysed using thromboelastography (TEG) to evaluate viscoelastic profiles, light microscopy for erythrocyte morphology, Scanning Electron Microscopy (SEM) for erythrocyte and fibrin clot structure, confocal microscopy for β-amyloid detection in fibrin clots. Results: Viscoelastic profiles from platelet poor plasma showed decreased clot reaction times in FMA at baseline (95% CI [5.56, 8.41]) vs. control (95% CI [7.22, 11.68]); as well as decreased time to maximum thrombus generation for the same comparison (95% CI [6.78, 10.20] vs. [8.90, 12.96]). Morphological analysis of erythrocytes indicated widespread macrocytosis, poikilocytosis and eryptosis in the migraineurs. Analysis of fibrin networks indicated that this hypercoagulability may be a result of aberrant fibrin polymerisation kinetics caused by the adoption of a β-amyloid conformation of fibrin(ogen). Conclusion: The results reaffirm the hypercoagulable state in migraine, and would suggest that this state is most likely a result of a systemic inflammatory state which induces oxidative damage to both erythrocytes and fibrin(ogen) in female episodic migraine-with-aura. Furthermore, if the amylodogenic changes to fibrin(ogen) were observed in a larger cohort, this would support theories of micro-embolisation in migraine-with-aura.
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Affiliation(s)
- Sulette de Villiers
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Janette Bester
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Douglas B Kell
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Etheresia Pretorius
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, South Africa
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Lee H, Na W, Lee SB, Ahn CW, Moon JS, Won KC, Shin S. Potential Diagnostic Hemorheological Indexes for Chronic Kidney Disease in Patients With Type 2 Diabetes. Front Physiol 2019; 10:1062. [PMID: 31481899 PMCID: PMC6710411 DOI: 10.3389/fphys.2019.01062] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 08/02/2019] [Indexed: 11/24/2022] Open
Abstract
Many studies have demonstrated that an alteration in hemorheological properties is closely correlated with diabetic microcirculatory diseases. However, most of these studies have been limited to animal studies or used a small number of clinical samples, due to a lack of effective point-of-care (POC) devices to measure such properties within clinical environments. Owing to recent developments in microfluidic technology, several hemorheological POC devices have been designed that allow for the possibility of conducting extensive clinical studies using hemorheological measurements. Here, we reviewed recent clinical studies of diabetic kidney disease (DKD) associated with hemorheological parameters. We found that RBC deformability alone did not show a significant difference according to the degree of DKD, whereas critical shear stress (CSS) was found to be closely related to the ratio of albumin to creatinine and glomerular filtration rate. We also reviewed studies that alteration of hemorheological properties are associated with the development of DKD, which showed that CSS could be considered as a potential index to diagnose other diabetic complications as well as DKD.
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Affiliation(s)
- Hoyoon Lee
- School of Mechanical Engineering, Korea University, Seoul, South Korea
| | - Wonwhi Na
- School of Mechanical Engineering, Korea University, Seoul, South Korea
| | - Sang Bae Lee
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Chul Woo Ahn
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Jun Sung Moon
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yeungnam College of Medicine, Daegu, South Korea
| | - Kyu Chang Won
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yeungnam College of Medicine, Daegu, South Korea
| | - Sehyun Shin
- School of Mechanical Engineering, Korea University, Seoul, South Korea
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Chaichompoo P, Qillah A, Sirankapracha P, Kaewchuchuen J, Rimthong P, Paiboonsukwong K, Fucharoen S, Svasti S, Worawichawong S. Abnormal red blood cell morphological changes in thalassaemia associated with iron overload and oxidative stress. J Clin Pathol 2019; 72:520-524. [PMID: 31010830 DOI: 10.1136/jclinpath-2019-205775] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 04/01/2019] [Accepted: 04/04/2019] [Indexed: 12/20/2022]
Abstract
AIMS Iron overload is a major factor contributing to the overall pathology of thalassaemia, which is primarily mediated by ineffective erythropoiesis and shorter mature red blood cell (RBC) survival. Iron accumulation in RBCs generates reactive oxygen species (ROS) that cause cellular damage such as lipid peroxidation and RBC membrane deformation. Abnormal RBCs in patients with thalassaemia are commonly known as microcytic hypochromic anaemia with poikilocytosis. However, iron and ROS accumulation in RBCs as related to RBC morphological changes in patients with thalassaemia has not been reported. METHODS Twenty-one patients with thalassaemia, including HbH, HbH with Hb Constant Spring and β-thalassaemia/HbE (splenectomy and non-splenectomy) genotypes, and five normal subjects were recruited. RBC morphology was analysed by light and scanning electron microscopy. Systemic and RBC iron status and oxidative stress were examined. RESULTS Decreased normocytes were observed in the samples of patients with thalassaemia, with RBC morphological abnormality being related to the type of disease (α-thalassaemia or β-thalassaemia) and splenic status. Target cells and crenated cells were mainly found in splenectomised patients with β-thalassaemia/HbE, while target cells and teardrop cells were found in non-splenectomised patients. Patients with thalassaemia had high levels of serum ferritin, red cell ferritin and ROS in RBCs compared with normal subjects (p<0.05). Negative correlations between the amount of normocytes and serum ferritin (rs=-0.518, p=0.011), red cell ferritin (rs=-0.467, p=0.025) or ROS in RBCs (rs=-0.672, p<0.001) were observed. CONCLUSIONS Iron overload and its consequent intracellular oxidative stress in RBCs were associated with reduce normocytes in patients with thalassaemia.
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Affiliation(s)
- Pornthip Chaichompoo
- Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Ariz Qillah
- Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Pornpan Sirankapracha
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Jirada Kaewchuchuen
- Department of Pharmacology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Poramate Rimthong
- Electron Microscopy Unit, Department of Pathology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Kittiphong Paiboonsukwong
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Suthat Fucharoen
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Saovaros Svasti
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand.,Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Suchin Worawichawong
- Electron Microscopy Unit, Department of Pathology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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Podzolkov VI, Koroleva TV, Bragina AE, Kudryavtseva MG, Bragina GI, Pisarev MV. RELATION OF DISTURBANCES IN THE ERYTHROCYTES ELECTRICAL ACTIVITY WITH DYSLIPIDEMIA IN THE METABOLIC SYNDROME. RATIONAL PHARMACOTHERAPY IN CARDIOLOGY 2018. [DOI: 10.20996/1819-6446-2018-14-3-344-349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Aim. To study the erythrocyte electric charge (EEC) in patients with metabolic syndrome (MS).Material and methods. 112 patients (mean age 61.4±7.2 years) with MS (average duration of MS 8.7±5.2 years) were examined. Control group consisted of healthy volunteers (n=25) of similar age. The level of EEC was detected by the method of adsorption of a positive cationic dye (cationic blue O) on the surface of the erythrocyte plasma membrane up to the complete neutralization of their negative charge, followed by photometry of the solution and calculation of the number of charges on the erythrocyte cell surface. The results of the study were processed by Statistica 10.0 software.Results. Hypertension was found in 73% of patients with MS, hyperglycemia – in 39%, diabetes – in 36%, dyslipidemia – in 80% of patients. The EEC in MS patients (1.59±0.05×107) was lower than this in the control group (1.65±0.03×107; p<0.05). With MS duration more than 5 years, the EEC was significantly lower in comparison with control group (p<0.05). In patients with obesity II-III degrees as well as dyslipidemia the EEC values were significantly lower vs control group (p<0.05). In patients with MS, a significant negative correlation of EEC with total cholesterol (r=-0.51, p<0.05) and triglycerides (r=-0.51, p<0.05) levels were revealed.Conclusion. In patients with MS with increase in the MS duration, degree of obesity and lipid metabolism disorders, significantly lower values of EEC were observed.
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Gyawali P, Ziegler D, Cailhier JF, Denault A, Cloutier G. Quantitative Measurement of Erythrocyte Aggregation as a Systemic Inflammatory Marker by Ultrasound Imaging: A Systematic Review. ULTRASOUND IN MEDICINE & BIOLOGY 2018; 44:1303-1317. [PMID: 29661483 DOI: 10.1016/j.ultrasmedbio.2018.02.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 02/21/2018] [Accepted: 02/28/2018] [Indexed: 06/08/2023]
Abstract
This systematic review is aimed at answering two questions: (i) Is erythrocyte aggregation a useful biomarker in assessing systemic inflammation? (ii) Does quantitative ultrasound imaging provide the non-invasive option to measure erythrocyte aggregation in real time? The search was executed through bibliographic electronic databases CINAHL, EMB Review, EMBASE, MEDLINE, PubMed and the grey literature. The majority of studies correlated elevated erythrocyte aggregation with inflammatory blood markers for several pathologic states. Some studies used "erythrocyte aggregation" as an established marker of systemic inflammation. There were limited but promising articles regarding the use of quantitative ultrasound spectroscopy to monitor erythrocyte aggregation. Similarly, there were limited studies that used other ultrasound techniques to measure systemic inflammation. The quantitative measurement of erythrocyte aggregation has the potential to be a routine clinical marker of inflammation as it can reflect the cumulative inflammatory dynamics in vivo, is relatively simple to measure, is cost-effective and has a rapid turnaround time. Technologies like quantitative ultrasound spectroscopy that can measure erythrocyte aggregation non-invasively and in real time may offer the advantage of continuous monitoring of the inflammation state and, thus, may help in rapid decision making in a critical care setup.
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Affiliation(s)
- Prajwal Gyawali
- Laboratory of Biorheology and Medical Ultrasonics, University of Montreal Hospital Research Center (CRCHUM), Montréal, Québec, Canada
| | - Daniela Ziegler
- Documentation Center, University of Montreal Hospital, Montréal, Québec, Canada
| | - Jean-François Cailhier
- University of Montreal Hospital Research Center (CRCHUM), Montréal, Québec, Canada; Department of Medicine, University of Montreal, Montréal, Québec, Canada
| | - André Denault
- University of Montreal Hospital, Montreal, Québec, Canada; Montreal Heart Institute, Montreal, Québec, Canada; Department of Anesthesiology, University of Montreal, Montréal, Québec, Canada
| | - Guy Cloutier
- Laboratory of Biorheology and Medical Ultrasonics, University of Montreal Hospital Research Center (CRCHUM), Montréal, Québec, Canada; Department of Radiology, Radio-Oncology and Nuclear Medicine, Montréal, Québec, Canada; Institute of Biomedical Engineering, University of Montreal, Montréal, Québec, Canada.
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Zurauskaite G, Meier M, Voegeli A, Koch D, Haubitz S, Kutz A, Bernasconi L, Huber A, Bargetzi M, Mueller B, Schuetz P. Biological pathways underlying the association of red cell distribution width and adverse clinical outcome: Results of a prospective cohort study. PLoS One 2018; 13:e0191280. [PMID: 29342203 PMCID: PMC5771602 DOI: 10.1371/journal.pone.0191280] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 01/02/2018] [Indexed: 01/20/2023] Open
Abstract
Background Red cell distribution width (RDW) predicts disease outcome in several patient populations, but its prognostic value in addition to other disease parameters in unselected medical inpatients remains unclear. Our aim was to investigate the association of admission RDW levels and mortality adjusted for several disease pathways in unselected medical patients from a previous multicenter study. Methods We included consecutive adult, medical patients at the time point of hospital admission through the emergency department into this observational, cohort study. The primary endpoint was mortality at 30-day. To study association of admission RDW and outcomes, we calculated regression analysis with step-wise inclusion of clinical and laboratory parameters from different biological pathways. Results The 30-day mortality of the 4273 included patients was 5.6% and increased from 1.4% to 14.3% from the lowest to the highest RDW quartile. There was a strong association of RDW and mortality in unadjusted analysis (OR 1.32; 95%CI 1.27–1.39, p<0.001). RDW was strongly correlated with different pathways including inflammation (coefficient of determination (R2) 0.30; p<0.001), nutrition (R2 0.20; p<0.001) and blood diseases (R2 0.30; p<0.001 The association was eliminated after including different biological pathways into the models with the fully adjusted regression model showing an OR of 1.02 (95%CI 0.93–1.12; p = 0.664) for the association of RDW and mortality. Similar effects were found for other outcomes including intensive care unit admission and hospital readmission. Conclusion Our data suggests that RDW is a strong surrogate marker of mortality in unselected medical inpatients with most of the prognostic information being explained by other disease factors. The strong correlation of RDW and different biological pathways such as chronic inflammation, malnutrition and blood disease suggest that RDW may be viewed as an unspecific and general “chronic disease prognostic marker”.
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Affiliation(s)
| | - Marc Meier
- Medical University Department, Kantonsspital Aarau, Aarau, Switzerland
| | - Alaadin Voegeli
- Medical University Department, Kantonsspital Aarau, Aarau, Switzerland
| | - Daniel Koch
- Medical University Department, Kantonsspital Aarau, Aarau, Switzerland
| | - Sebastian Haubitz
- Medical University Department, Kantonsspital Aarau, Aarau, Switzerland
| | - Alexander Kutz
- Medical University Department, Kantonsspital Aarau, Aarau, Switzerland
| | - Luca Bernasconi
- Institute of Laboratory Medicine, Kantonsspital Aarau, Aarau, Switzerland
| | - Andreas Huber
- Institute of Laboratory Medicine, Kantonsspital Aarau, Aarau, Switzerland
| | - Mario Bargetzi
- Division of Hematology, Oncology and Transfusion Medicine, Kantonsspital Aarau, Aarau, Switzerland
| | - Beat Mueller
- Medical University Department, Kantonsspital Aarau, Aarau, Switzerland
| | - Philipp Schuetz
- Medical University Department, Kantonsspital Aarau, Aarau, Switzerland
- * E-mail:
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27
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Georgatzakou HT, Tzounakas VL, Kriebardis AG, Velentzas AD, Kokkalis AC, Antonelou MH, Papassideri IS. Short-term effects of hemodiafiltration versus conventional hemodialysis on erythrocyte performance. Can J Physiol Pharmacol 2017; 96:249-257. [PMID: 28854342 DOI: 10.1139/cjpp-2017-0285] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Hemodiafiltration (HDF) is a renal replacement therapy that is based on the principles of diffusion and convection for the elimination of uremic toxins. A significant and increasing number of end-stage renal disease (ESRD) patients are treated with HDF, even in the absence of definite and conclusive survival and anemia treatment data. However, its effects on red blood cell (RBC) physiological features have not been examined in depth. In this study, ESRD patients under regular HDF or conventional hemodialysis (cHD) treatment were examined for RBC-related parameters, including anemia, hemolysis, cell shape, redox status, removal signaling, membrane protein composition, and microvesiculation, in repeated paired measurements accomplished before and right after each dialysis session. The HDF group was characterized by better redox potential and suppressed exovesiculation of blood cells compared with the cHD group pre-dialysis. However, HDF was associated with a temporary but acute, oxidative-stress-driven increase in hemolysis, RBC removal signaling, and stomatocytosis, probably associated with the effective clearance of dialyzable natural antioxidant components, including uric acid, from the uremic plasma. The nature of these adverse short-term effects of HDF on post-dialysis plasma and RBCs strongly suggests the use of a parallel antioxidant therapy during the HDF session.
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Affiliation(s)
- Hara T Georgatzakou
- a Department of Biology, Section of Cell Biology & Biophysics, School of Science, National and Kapodistrian University of Athens (NKUA), Greece
| | - Vassilis L Tzounakas
- a Department of Biology, Section of Cell Biology & Biophysics, School of Science, National and Kapodistrian University of Athens (NKUA), Greece
| | - Anastasios G Kriebardis
- b Department of Medical Laboratories, Faculty of Health and Caring Professions, Technological and Educational Institute (TEI) of Athens, Greece
| | - Athanassios D Velentzas
- a Department of Biology, Section of Cell Biology & Biophysics, School of Science, National and Kapodistrian University of Athens (NKUA), Greece
| | | | - Marianna H Antonelou
- a Department of Biology, Section of Cell Biology & Biophysics, School of Science, National and Kapodistrian University of Athens (NKUA), Greece
| | - Issidora S Papassideri
- a Department of Biology, Section of Cell Biology & Biophysics, School of Science, National and Kapodistrian University of Athens (NKUA), Greece
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28
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Swanepoel AC, Emmerson O, Pretorius E. Effect of Progesterone and Synthetic Progestins on Whole Blood Clot Formation and Erythrocyte Structure. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2017; 23:607-617. [PMID: 28480839 DOI: 10.1017/s1431927617000484] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Combined oral contraceptive (COC) use is a risk factor for venous thrombosis (VT) and related to the specific type of progestin used. VT is accompanied by inflammation and pathophysiological clot formation, that includes aberrant erythrocytes and fibrin(ogen) interactions. In this paper, we aim to determine the influence of progesterone and different synthetic progestins found in COCs on the viscoelasticity of whole blood clots, as well as erythrocyte morphology and membrane ultrastructure, in an in vitro laboratory study. Thromboelastography (TEG), light microscopy, and scanning electron microscopy were our chosen methods. Our results point out that progestins influence the rate of whole blood clot formation. Alterations to erythrocyte morphology and membrane ultrastructure suggest the presence of eryptosis. We also note increased rouleaux formation, erythrocyte aggregation, and spontaneous fibrin formation in whole blood which may explain the increased risk of VT associated with COC use. Although not all COC users will experience a thrombotic event, individuals with a thrombotic predisposition, due to inflammatory or hematological illness, should be closely monitored to prevent pathological thrombosis.
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Deng J, Yuan S, Li X, Wang K, Xie L, Li N, Wang J, Huang N. Heparin/DNA aptamer co-assembled multifunctional catecholamine coating for EPC capture and improved hemocompatibility of vascular devices. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 79:305-314. [PMID: 28629023 DOI: 10.1016/j.msec.2017.05.057] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Revised: 04/27/2017] [Accepted: 05/10/2017] [Indexed: 02/07/2023]
Abstract
Good hemocompatibility and rapid endothelialization are two key factors in the success of stent interventional therapy. In this study, aptamers with the ability to capture endothelial progenitors and anticoagulant molecular heparin were successfully immobilized on the surface of dopamine/polyethylenimine (PDA/PEI) copolymer coating via electrostatic interaction. The results of X-ray spectroscopy (XPS), water contact angle (WCA), and immunofluorescence staining tests confirmed the successful introduction of heparin and aptamers. Platelet adhesion and whole blood experiments demonstrated that the hemocompatibility of the co-modified surface was improved. Dynamic endothelial progenitor cell (EPC) capture experiments showed that the modified surfaces could effectively capture the endothelial progenitor in dynamic conditions. More importantly, ex vivo experiments revealed that the modified surfaces could regulate the distribution of CD34/vWF-positive cells on stent surfaces, and this was beneficial for the endothelialization of vascular stents. These results suggested that heparin and aptamer co-modified stents could capture EPCs and promote endothelialization. This surface co-modification strategy has great potential for enhancing stent development.
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Affiliation(s)
- Jinchuan Deng
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China; The Institute of Biomaterials and Surface Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Shuheng Yuan
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China; The Institute of Biomaterials and Surface Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Xin Li
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China; The Institute of Biomaterials and Surface Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Kebing Wang
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China; The Institute of Biomaterials and Surface Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Lingxia Xie
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China; The Institute of Biomaterials and Surface Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Na Li
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China; The Institute of Biomaterials and Surface Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Jin Wang
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China; The Institute of Biomaterials and Surface Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Nan Huang
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China; The Institute of Biomaterials and Surface Engineering, Southwest Jiaotong University, Chengdu 610031, China
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30
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Georgatzakou HT, Tzounakas VL, Kriebardis AG, Velentzas AD, Papageorgiou EG, Voulgaridou AI, Kokkalis AC, Antonelou MH, Papassideri IS. Pathophysiological aspects of red blood cells in end-stage renal disease patients resistant to recombinant human erythropoietin therapy. Eur J Haematol 2017; 98:590-600. [DOI: 10.1111/ejh.12875] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/02/2017] [Indexed: 12/13/2022]
Affiliation(s)
- Hara T. Georgatzakou
- Department of Biology; Section of Cell Biology & Biophysics; School of Science; National and Kapodistrian University of Athens (NKUA); Athens Greece
| | - Vassilis L. Tzounakas
- Department of Biology; Section of Cell Biology & Biophysics; School of Science; National and Kapodistrian University of Athens (NKUA); Athens Greece
| | - Anastasios G. Kriebardis
- Department of Medical Laboratories; Faculty of Health and Caring Professions; Technological and Educational Institute (TEI) of Athens; Athens Greece
| | - Athanassios D. Velentzas
- Department of Biology; Section of Cell Biology & Biophysics; School of Science; National and Kapodistrian University of Athens (NKUA); Athens Greece
| | - Effie G. Papageorgiou
- Department of Medical Laboratories; Faculty of Health and Caring Professions; Technological and Educational Institute (TEI) of Athens; Athens Greece
| | | | | | - Marianna H. Antonelou
- Department of Biology; Section of Cell Biology & Biophysics; School of Science; National and Kapodistrian University of Athens (NKUA); Athens Greece
| | - Issidora S. Papassideri
- Department of Biology; Section of Cell Biology & Biophysics; School of Science; National and Kapodistrian University of Athens (NKUA); Athens Greece
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Gyawali P, Richards RS, Tinley P, Nwose EU, Bwititi PT. Hemorheological parameters better classify metabolic syndrome than novel cardiovascular risk factors and peripheral vascular disease marker. Clin Hemorheol Microcirc 2017; 64:1-5. [PMID: 26890105 DOI: 10.3233/ch-152033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The present study compares the association of Metabolic Syndrome (MetS) with hemorheological parameters, oxidative stress, inflammation and peripheral arterial disease markers. 100 participants were recruited and participants were divided into three groups on the basis of absence or presence of MetS and its components. Odds ratio for correctly predicting MetS was highest for erythrocyte aggregation followed by erythrocyte deformability. ROC curve analysis demonstrated that all the hemorheological components significantly classified MetS participants. Area Under Curve was higher for the hemorheological parameters (erythrocyte aggregation and erythrocyte deformability) than for the oxidative stress, inflammation and peripheral arterial disease markers. The possibilities of the hemorheological components to be identified as better cardiovascular risk markers due to their strong association with MetS cannot be precluded from the present findings.
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Affiliation(s)
- Prajwal Gyawali
- Biomedical Sciences, School of Community Health, Charles Sturt University, NSW, Australia
| | - Ross S Richards
- Biomedical Sciences, School of Community Health, Charles Sturt University, NSW, Australia
| | - Paul Tinley
- Podiatry, Charles Sturt University, NSW, Australia
| | - Ezekiel Uba Nwose
- School of Community Health, Charles Sturt University, NSW, Australia
| | - Phillip T Bwititi
- School of Biomedical Sciences, Charles Sturt University, NSW, Australia
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Kengkoom K, Ampawong S. In Vitro Protective Effect of Phikud Navakot Extraction on Erythrocyte. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2016; 2016:1961327. [PMID: 28003847 PMCID: PMC5149699 DOI: 10.1155/2016/1961327] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 11/03/2016] [Indexed: 11/27/2022]
Abstract
Phikud Navakot (PN), Thai herbal remedy in National List of Essential Medicines, has been claimed to reduce many cardiovascular symptoms especially dizziness and fainting. Apart from blood supply, erythrocyte morphology, in both shape and size, is one of the main consideration factors in cardiovascular diseases and may be affected by vascular oxidative stress. However, little is known about antioxidative property of PN on erythrocyte to preserve red blood cell integrity. In this study, 1,000 μM hydrogen peroxide-induced oxidative stress was conducted on sheep erythrocyte. Three doses of PN (1, 0.5, and 0.25 mg/mL) and 10 μM of ascorbic acid were compared. The released hemoglobin absorbance was measured to demonstrate hemolysis. Electron microscopic and immunohistochemical studies were also performed to characterize dysmorphic erythrocyte and osmotic ability in relation to aquaporin- (AQP-) 1 expression, respectively. The results revealed that all doses of PN and ascorbic acid decreased the severity of dysmorphic erythrocyte, particularly echinocyte, acanthocyte, knizocyte, codocyte, clumping, and other malformations. However, the most effective was 0.5 mg/mL PN dosage. In addition, hydrostatic pressure may be increased in dysmorphic erythrocyte in association with AQP-1 upregulation. Our results demonstrated that PN composes antioxidative effect to maintain the integrity and osmotic ability on sheep erythrocyte.
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Affiliation(s)
- Kanchana Kengkoom
- Academic Services Office, National Laboratory Animal Center, Mahidol University, 999 Salaya, Puttamonthon, Nakorn Pathom 73170, Thailand
| | - Sumate Ampawong
- Department of Tropical Pathology, Faculty of Tropical Medicine, Mahidol University, 420/6 Ratchawithi Road, Ratchathewi, Bangkok 10400, Thailand
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33
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Hemorheological profiles of subjects with prehypertension. Hypertens Res 2016; 39:519-23. [DOI: 10.1038/hr.2016.20] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 12/28/2015] [Accepted: 01/08/2016] [Indexed: 12/31/2022]
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