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Udroiu I. A Simplified Method for Calculating Surface Area of Mammalian Erythrocytes. Methods Protoc 2024; 7:11. [PMID: 38392685 PMCID: PMC10891711 DOI: 10.3390/mps7010011] [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: 11/19/2023] [Revised: 01/05/2024] [Accepted: 01/22/2024] [Indexed: 02/24/2024] Open
Abstract
Knowledge of the geometric quantities of the erythrocyte is useful in several physiological studies, both for zoologists and veterinarians. While the diameter and volume (MCV) are easily obtained from observations of blood smears and complete blood count, respectively, the thickness and surface area are instead much more difficult to measure. The precise description of the erythrocyte geometry is given by the equation of the oval of Cassini, but the formulas deriving from it are very complex, comprising elliptic integrals. In this article, three solids are proposed as models approximating the erythrocyte: sphere, cylinder and a spheroid with concave caps. The volumes and surface areas obtained with these models are compared to those effectively measured. The spheroid with concave caps gives the best approximation and can be used as a simple model to determine the erythrocyte surface area. With this model, a simple method that allows one to estimate the surface area by knowing only the diameter and MCV is proposed.
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Affiliation(s)
- Ion Udroiu
- Dipartimento di Scienze, Università degli Studi "Roma Tre", 00146 Rome, Italy
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2
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Marcinkowska-Gapińska A, Siemieniak I, Kawałkiewicz W, Stieler O, Hojan-Jezierska D, Kubisz L. Interdependence of Rheological and Biochemical Parameters of Blood in a Group of Patients with Clinically Silent Multifocal Vascular Cerebral Lesions. Biomedicines 2023; 11:2063. [PMID: 37509703 PMCID: PMC10376949 DOI: 10.3390/biomedicines11072063] [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: 06/08/2023] [Revised: 07/13/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND Hemorheology is a field of science which often becomes interesting to researchers studying impairments related to blood flow disturbances. Clinically silent vascular cerebral lesions (CSVCLs) are considered a problem of great importance in neurology. OBJECTIVE This work aimed to analyze the interdependencies of the rheological and biochemical parameters of the blood. METHODS The group of patients included persons with clinically silent multifocal vascular cerebral lesions diagnosed using neuroimaging. The control group had no symptoms in the central nervous system (CNS). We analyzed hemorheological profiles in 69 patients with CSVCLs diagnosed via magnetic resonance imaging (MR) or 64-row computer tomography measurements. Rheological data were acquired using a rotary-oscillating rheometer, the Contraves LS-40, an instrument dedicated to blood viscosity measurements. For each sample, the hematocrit value was measured using the standard method. Analysis of erythrocytes' aggregability and deformability was performed using the rheological model of Quemada. Biochemical tests of blood were also performed. RESULTS The results of rheological and biochemical studies were compared with those obtained in the control group. Special attention was paid to the correlation analysis of rheological and biochemical parameters. CONCLUSIONS Such correlations were found, e.g., between the red cells' deformability and the fibrinogen level. The results improve our understanding of blood flow hemodynamics by analyzing the shear-dependent behavior of the aggregation and deformability of red blood cells.
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Affiliation(s)
| | - Izabela Siemieniak
- Rheological Laboratory, Department of Neurology, Poznan University of Medical Sciences, 61-701 Poznań, Poland
| | - Weronika Kawałkiewicz
- Department of Biophysics, Poznan University of Medical Sciences, 61-701 Poznań, Poland
| | - Olgierd Stieler
- Department of Hearing Healthcare Profession, Poznan University of Medical Sciences, 61-701 Poznań, Poland
| | - Dorota Hojan-Jezierska
- Department of Hearing Healthcare Profession, Poznan University of Medical Sciences, 61-701 Poznań, Poland
| | - Leszek Kubisz
- Department of Biophysics, Poznan University of Medical Sciences, 61-701 Poznań, Poland
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3
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Quds R, Iqbal Z, Arif A, Mahmood R. Mancozeb-induced cytotoxicity in human erythrocytes: enhanced generation of reactive species, hemoglobin oxidation, diminished antioxidant power, membrane damage and morphological changes. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 193:105453. [PMID: 37248021 DOI: 10.1016/j.pestbp.2023.105453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/21/2023] [Accepted: 05/02/2023] [Indexed: 05/31/2023]
Abstract
Mancozeb is an ethylene bis-dithiocarbamate fungicide extensively used in agriculture to safeguard crops from various fungal diseases. The general population is exposed to mancozeb through consumption of contaminated food or water. Here, we have investigated the effect of mancozeb on isolated human erythrocytes under in vitro conditions. Erythrocytes were treated with different concentrations of mancozeb (0, 5, 10, 25, 50, 100 μM) and incubated for 24 h at 37 °C. Analysis of biochemical parameters and cell morphology showed dose-dependent toxicity of mancozeb in human erythrocytes. Mancozeb treatment caused hemoglobin oxidation and heme degradation. Protein and lipid oxidation were enhanced, while a significant decrease was seen in reduced glutathione and total sulfhydryl content. A significant increase in the generation of reactive oxygen and nitrogen species was detected in mancozeb-treated erythrocytes. The antioxidant capacity and the activity of key antioxidant enzymes were greatly diminished, while crucial metabolic pathways were inhibited in erythrocytes. Damage to the erythrocyte membrane on mancozeb treatment was apparent from increased cell lysis and osmotic fragility, along with the impairment of the plasma membrane redox system. Mancozeb also caused morphological alterations and transformed the normal discoid-shaped erythrocytes into echinocytes and stomatocytes. Thus, mancozeb induces oxidative stress in human erythrocytes, impairs the antioxidant defense system, oxidizes cellular components, that will adversely affect erythrocyte structure and function.
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Affiliation(s)
- Ruhul Quds
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, UP, India
| | - Zarmin Iqbal
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, UP, India
| | - Amin Arif
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, UP, India
| | - Riaz Mahmood
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, UP, India.
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4
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Sun M, Wang R, Xia R, Xia Z, Wu Z, Wang T. Amelioration of myocardial ischemia/reperfusion injury in diabetes: A narrative review of the mechanisms and clinical applications of dexmedetomidine. Front Pharmacol 2022; 13:949754. [PMID: 36120296 PMCID: PMC9470922 DOI: 10.3389/fphar.2022.949754] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 08/08/2022] [Indexed: 11/13/2022] Open
Abstract
Mechanisms contributing to the pathogenesis of myocardial ischemia-reperfusion (I/R) injury are complex and multifactorial. Many strategies have been developed to ameliorate myocardial I/R injuries based on these mechanisms. However, the cardioprotective effects of these strategies appear to diminish in diabetic states. Diabetes weakens myocardial responses to therapies by disrupting intracellular signaling pathways which may be responsible for enhancing cellular resistance to damage. Intriguingly, it was found that Dexmedetomidine (DEX), a potent and selective α2-adrenergic agonist, appears to have the property to reverse diabetes-related inhibition of most intervention-mediated myocardial protection and exert a protective effect. Several mechanisms were revealed to be involved in DEX’s protection in diabetic rodent myocardial I/R models, including PI3K/Akt and associated GSK-3β pathway stimulation, endoplasmic reticulum stress (ERS) alleviation, and apoptosis inhibition. In addition, DEX could attenuate diabetic myocardial I/R injury by up-regulating autophagy, reducing ROS production, and inhibiting the inflammatory response through HMGB1 pathways. The regulation of autonomic nervous function also appeared to be involved in the protective mechanisms of DEX. In the present review, the evidence and underlying mechanisms of DEX in ameliorating myocardial I/R injury in diabetes are summarized, and the potential of DEX for the treatment/prevention of myocardial I/R injury in diabetic patients is discussed.
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Affiliation(s)
- Meng Sun
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rong Wang
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rui Xia
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhengyuan Xia
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong, China
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Zhilin Wu
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Zhilin Wu, ; Tingting Wang,
| | - Tingting Wang
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Zhilin Wu, ; Tingting Wang,
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5
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Chen Y, Zhan Q, Zhang J, Wang W, Luan Khoo B, Liu Z, Wei S, Niu J, Xu J, Yu CC, Hu X, Liu Y, Han J, Liu S, Liu L. Accurate prediction of drug-induced heterogeneous response of red cell in vivo using a gravity-driven flow cytometry based on a microfluidic chip. Anal Chim Acta 2022; 1221:340151. [DOI: 10.1016/j.aca.2022.340151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 06/02/2022] [Accepted: 07/04/2022] [Indexed: 11/28/2022]
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6
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Desai P, Rimal R, Florea A, Gumerov RA, Santi M, Sorokina AS, Sahnoun SEM, Fischer T, Mottaghy FM, Morgenroth A, Mourran A, Potemkin II, Möller M, Singh S. Tuning the Elasticity of Nanogels Improves Their Circulation Time by Evading Immune Cells. Angew Chem Int Ed Engl 2022; 61:e202116653. [PMID: 35274425 PMCID: PMC9325431 DOI: 10.1002/anie.202116653] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Indexed: 12/22/2022]
Abstract
Peptide receptor radionuclide therapy is used to treat solid tumors by locally delivering radiation. However, due to nephro‐ and hepato‐toxicity, it is limited by its dosage. To amplify radiation damage to tumor cells, radiolabeled nanogels can be used. We show that by tuning the mechanical properties of nanogels significant enhancement in circulation half‐life of the gel could be achieved. We demonstrate why and how small changes in the mechanical properties of the nanogels influence its cellular fate. Nanogels with a storage modulus of 37 kPa were minimally phagocytosed by monocytes and macrophages compared to nanogels with 93 kPa modulus. Using PET/CT a significant difference in the blood circulation time of the nanogels was shown. Computer simulations affirmed the results and predicted the mechanism of cellular uptake of the nanogels. Altogether, this work emphasizes the important role of elasticity even for particles that are inherently soft such as nano‐ or microgels.
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Affiliation(s)
- Prachi Desai
- DWI Leibniz Institute for Interactive Materials e.V RWTH Aachen University Forckenbeckstrasse 50 52074 Aachen Germany
| | - Rahul Rimal
- DWI Leibniz Institute for Interactive Materials e.V RWTH Aachen University Forckenbeckstrasse 50 52074 Aachen Germany
| | - Alexandru Florea
- Department of Nuclear Medicine University Hospital RWTH Aachen Pauwelstraße 30 52074 Aachen Germany
- Department of Radiology and Nuclear Medicine School for Cardiovascular Diseases (CARIM) and School for Oncology (GROW) Maastricht University 6229 HX Maastricht The Netherlands
| | - Rustam A. Gumerov
- DWI Leibniz Institute for Interactive Materials e.V RWTH Aachen University Forckenbeckstrasse 50 52074 Aachen Germany
- Physics Department Lomonosov Moscow State University Leninskie Gory 1–2 119991 Moscow Russian Federation
| | - Marta Santi
- DWI Leibniz Institute for Interactive Materials e.V RWTH Aachen University Forckenbeckstrasse 50 52074 Aachen Germany
| | - Anastasia S. Sorokina
- Physics Department Lomonosov Moscow State University Leninskie Gory 1–2 119991 Moscow Russian Federation
| | - Sabri E. M. Sahnoun
- Department of Nuclear Medicine University Hospital RWTH Aachen Pauwelstraße 30 52074 Aachen Germany
| | - Thorsten Fischer
- DWI Leibniz Institute for Interactive Materials e.V RWTH Aachen University Forckenbeckstrasse 50 52074 Aachen Germany
| | - Felix M. Mottaghy
- Department of Nuclear Medicine University Hospital RWTH Aachen Pauwelstraße 30 52074 Aachen Germany
- Department of Radiology and Nuclear Medicine School for Cardiovascular Diseases (CARIM) and School for Oncology (GROW) Maastricht University 6229 HX Maastricht The Netherlands
| | - Agnieszka Morgenroth
- Department of Nuclear Medicine University Hospital RWTH Aachen Pauwelstraße 30 52074 Aachen Germany
| | - Ahmed Mourran
- DWI Leibniz Institute for Interactive Materials e.V RWTH Aachen University Forckenbeckstrasse 50 52074 Aachen Germany
| | - Igor I. Potemkin
- DWI Leibniz Institute for Interactive Materials e.V RWTH Aachen University Forckenbeckstrasse 50 52074 Aachen Germany
- Physics Department Lomonosov Moscow State University Leninskie Gory 1–2 119991 Moscow Russian Federation
- National Research South Ural State University Chelyabinsk 454080 Russian Federation
| | - Martin Möller
- DWI Leibniz Institute for Interactive Materials e.V RWTH Aachen University Forckenbeckstrasse 50 52074 Aachen Germany
| | - Smriti Singh
- DWI Leibniz Institute for Interactive Materials e.V RWTH Aachen University Forckenbeckstrasse 50 52074 Aachen Germany
- Max Planck Institute for Medical Research (MPImF) Jahnstrasse 29 69120 Heidelberg Germany
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7
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Matthews K, Lamoureux ES, Myrand-Lapierre ME, Duffy SP, Ma H. Technologies for measuring red blood cell deformability. LAB ON A CHIP 2022; 22:1254-1274. [PMID: 35266475 DOI: 10.1039/d1lc01058a] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Human red blood cells (RBCs) are approximately 8 μm in diameter, but must repeatedly deform through capillaries as small as 2 μm in order to deliver oxygen to all parts of the body. The loss of this capability is associated with the pathology of many diseases, and is therefore a potential biomarker for disease status and treatment efficacy. Measuring RBC deformability is a difficult problem because of the minute forces (∼pN) that must be exerted on these cells, as well as the requirements for throughput and multiplexing. The development of technologies for measuring RBC deformability date back to the 1960s with the development of micropipette aspiration, ektacytometry, and the cell transit analyzer. In the past 10 years, significant progress has been made using microfluidics by leveraging the ability to precisely control fluid flow through microstructures at the size scale of individual RBCs. These technologies have now surpassed traditional methods in terms of sensitivity, throughput, consistency, and ease of use. As a result, these efforts are beginning to move beyond feasibility studies and into applications to enable biomedical discoveries. In this review, we provide an overview of both traditional and microfluidic techniques for measuring RBC deformability. We discuss the capabilities of each technique and compare their sensitivity, throughput, and robustness in measuring bulk and single-cell RBC deformability. Finally, we discuss how these tools could be used to measure changes in RBC deformability in the context of various applications including pathologies caused by malaria and hemoglobinopathies, as well as degradation during storage in blood bags prior to blood transfusions.
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Affiliation(s)
- Kerryn Matthews
- Department of Mechanical Engineering, University of British Columbia, 2054-6250 Applied Science Lane, Vancouver, BC, V6T 1Z4, Canada.
- Centre for Blood Research, University of British Columbia, Vancouver, BC, Canada
| | - Erik S Lamoureux
- Department of Mechanical Engineering, University of British Columbia, 2054-6250 Applied Science Lane, Vancouver, BC, V6T 1Z4, Canada.
- Centre for Blood Research, University of British Columbia, Vancouver, BC, Canada
| | - Marie-Eve Myrand-Lapierre
- Department of Mechanical Engineering, University of British Columbia, 2054-6250 Applied Science Lane, Vancouver, BC, V6T 1Z4, Canada.
| | - Simon P Duffy
- Centre for Blood Research, University of British Columbia, Vancouver, BC, Canada
- British Columbia Institute of Technology, Vancouver, BC, Canada
| | - Hongshen Ma
- Department of Mechanical Engineering, University of British Columbia, 2054-6250 Applied Science Lane, Vancouver, BC, V6T 1Z4, Canada.
- Centre for Blood Research, University of British Columbia, Vancouver, BC, Canada
- Department of Urologic Science, University of British Columbia, Vancouver, BC, Canada
- Vancouver Prostate Centre, Vancouver General Hospital, Vancouver, BC, Canada
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8
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Desai P, Rimal R, Florea A, Gumerov RA, Santi M, Sorokina AS, Sahnoun SEM, Fischer T, Mottaghy FM, Morgenroth A, Mourran A, Potemkin II, Möller M, Singh S. Tuning the Elasticity of Nanogels Improves their Circulation Time by Evading Immune Cells. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Prachi Desai
- DWI-Leibniz-Institut für Interaktive Materialien: DWI-Leibniz-Institut fur Interaktive Materialien Macromolecular Chemistry Aachen GERMANY
| | - Rahul Rimal
- DWI-Leibniz-Institut für Interaktive Materialien: DWI-Leibniz-Institut fur Interaktive Materialien Macromolecular chemistry Aachen GERMANY
| | - Alexandru Florea
- Uniklinik RWTH Aachen: Universitatsklinikum Aachen Nuclear Medicine GERMANY
| | - Rustam A. Gumerov
- Lomonosov Moscow State University: Moskovskij gosudarstvennyj universitet imeni M V Lomonosova Physics RUSSIAN FEDERATION
| | - Marta Santi
- DWI-Leibniz-Institut für Interaktive Materialien: DWI-Leibniz-Institut fur Interaktive Materialien Macromolecular Chemistry GERMANY
| | - Anastasia S. Sorokina
- Lomonosov Moscow State University: Moskovskij gosudarstvennyj universitet imeni M V Lomonosova Physics RUSSIAN FEDERATION
| | | | - Thorsten Fischer
- DWI-Leibniz-Institut für Interaktive Materialien: DWI-Leibniz-Institut fur Interaktive Materialien Macromolecular Chemistry GERMANY
| | - Felix M. Mottaghy
- Uniklinik RWTH Aachen: Universitatsklinikum Aachen Nuclear Medicine GERMANY
| | | | - Ahmed Mourran
- DWI-Leibniz-Institut für Interaktive Materialien: DWI-Leibniz-Institut fur Interaktive Materialien Macromolecular chemistry GERMANY
| | - Igor I. Potemkin
- Lomonosov Moscow State University: Moskovskij gosudarstvennyj universitet imeni M V Lomonosova Physics RUSSIAN FEDERATION
| | - Martin Möller
- DWI-Leibniz-Institut für Interaktive Materialien: DWI-Leibniz-Institut fur Interaktive Materialien Macromolecular Chemistry GERMANY
| | - Smriti Singh
- Max-Planck-Institute for Medical Research: Max-Planck-Institut fur medizinische Forschung Cellular Biophysics Jahnstr. 29 Heidelberg GERMANY
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9
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Sun J, Han K, Xu M, Li L, Qian J, Li L, Li X. Blood Viscosity in Subjects With Type 2 Diabetes Mellitus: Roles of Hyperglycemia and Elevated Plasma Fibrinogen. Front Physiol 2022; 13:827428. [PMID: 35283762 PMCID: PMC8914209 DOI: 10.3389/fphys.2022.827428] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 01/20/2022] [Indexed: 12/21/2022] Open
Abstract
The viscosity of blood is an indicator in the understanding and treatment of disease. An elevated blood viscosity has been demonstrated in patients with Type 2 Diabetes Mellitus (T2DM), which might represent a risk factor for cardiovascular complications. However, the roles of glycated hemoglobin (HbA1c) and plasma fibrinogen levels on the elevated blood viscosity in subjects with T2DM at different chronic glycemic conditions are still not clear. Here, we evaluate the relationship between the blood viscosity and HbA1c as well as plasma fibrinogen levels in patients with T2DM. The experimental data show that the mean values of the T2DM blood viscosity are higher in groups with higher HbA1c levels, but the correlation between the T2DM blood viscosity and the HbA1c level is not obvious. Instead, when we investigate the influence of plasma fibrinogen level on the blood viscosity in T2DM subjects, we find that the T2DM blood viscosity is significantly and positively correlated with the plasma fibrinogen level. Further, to probe the combined effects of multiple factors (including the HbA1c and plasma fibrinogen levels) on the altered blood viscosity in T2DM, we regroup the experimental data based on the T2DM blood viscosity values at both the low and high shear rates, and our results suggest that the influence of the elevated HbA1c level on blood viscosity is quite limited, although it is an important indicator of glycemic control in T2DM patients. Instead, the elevated blood hematocrit, the enhanced red blood cell (RBC) aggregation induced by the increased plasma fibrinogen level, and the reduced RBC deformation play key roles in the determination of blood viscosity in T2DM. Together, these experimental results are helpful in identifying the key determinants for the altered T2DM blood viscosity, which can be used in future studies of the hemorheological disturbances of T2DM patients.
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Affiliation(s)
- Jiehui Sun
- Department of Endocrinology and Metabolism, Ningbo First Hospital, Ningbo, China
| | - Keqin Han
- Department of Engineering Mechanics, Zhejiang University, Hangzhou, China
| | - Miao Xu
- Department of Endocrinology and Metabolism, Ningbo First Hospital, Ningbo, China
| | - Lujuan Li
- Department of Engineering Mechanics, Zhejiang University, Hangzhou, China
| | - Jin Qian
- Department of Engineering Mechanics, Zhejiang University, Hangzhou, China
- *Correspondence: Jin Qian
| | - Li Li
- Department of Endocrinology and Metabolism, Ningbo First Hospital, Ningbo, China
- Li Li
| | - Xuejin Li
- Department of Engineering Mechanics, Zhejiang University, Hangzhou, China
- Xuejin Li
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10
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Amorim MDSDN, Batista JA, Junior FM, Fontes A, Santos-Oliveira R, Rebelo Alencar LM. New Insights into Hemolytic Anemias: Ultrastructural and Nanomechanical Investigation of Red Blood Cells Showed Early Morphological Changes. J Biomed Nanotechnol 2022; 18:405-421. [PMID: 35484760 DOI: 10.1166/jbn.2022.3267] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Several diseases are characterized by changes in the mechanical properties of erythrocytes. Hemolytic anemias are an example of these diseases. Among the hemolytic anemias, Sickle Cell Disease and Thalassemia are the most common, characterized by alterations in the structure of their hemoglobin. Sickle cell disease has a pathological origin in synthesizing abnormal hemoglobin, HbS. In contrast, thalassemia results in extinction or decreased synthesis of α and β hemoglobin chains. This work presents a detailed study of biophysical and ultrastructural early erythrocytes membrane alterations at the nanoscale using Atomic Force Microscopy (AFM). Cells from individuals with sickle cell anemia and thalassemia mutations were studied. The analysis methodology in the AFM was given by blood smear and exposure of the inner membrane for ghost analysis. A robust statistic was used with 65,536 force curves for each map, ten cells of each type, with three individuals for each sample group. The results showed significant differences in cell rigidity, adhesion, volume, and roughness at early morphological alterations, bringing new perspectives for understanding pathogenesis. The sickle cell trait (HbAS) results stand out. Significant alterations were observed in the membrane properties, bringing new perspectives for the knowledge of this mutation. This work presents ultrastructural and biomechanical signatures of sickle cell anemia and thalassemia genotypes, which may help determine a more accurate biophysical description and clinical prognosis for these diseases.
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Affiliation(s)
- Maria do Socorro do N Amorim
- Federal University of Maranhão, Department of Physics, Laboratory of Biophysics and Nanosystems, Campus Bacanga, São Luís, 65080-805, Maranhão, Brazil
| | - Jerias A Batista
- Federal University of Maranhão, Department of Physics, Laboratory of Biophysics and Nanosystems, Campus Bacanga, São Luís, 65080-805, Maranhão, Brazil
| | - Francisco Maia Junior
- Department of Natural Sciences, Mathematics, and Statistics, Federal Rural University of the Semi-Arid, Mossoró, 59625-900, Rio Grande do Norte, Brazil
| | - Adriana Fontes
- Department of Biophysics and Radiobiology, Center for Biosciences, Federal University of Pernambuco, Recife, 52171-011, Brazil
| | - Ralph Santos-Oliveira
- Zona Oeste State University, Laboratory of Nanoradiopharmaceuticals and Radiopharmacy, Rio de Janeiro, 23070200, Brazil
| | - Luciana M Rebelo Alencar
- Federal University of Maranhão, Department of Physics, Laboratory of Biophysics and Nanosystems, Campus Bacanga, São Luís, 65080-805, Maranhão, Brazil
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11
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Özkul T, Günal SY, Aydoğan S. The effect of ethion on erythrocyte deformability. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2021; 172:104753. [PMID: 33518046 DOI: 10.1016/j.pestbp.2020.104753] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 11/19/2020] [Accepted: 11/20/2020] [Indexed: 06/12/2023]
Abstract
Organophosphates cause increased oxidative susceptibility of erythrocytes and changes in erythrocyte deformability ability. We aim is to investigate the role of ethion (ETH) on erythrocyte deformability and to show whether vinpocetine (VIN) and carnosine (CAR) are protective against these changes. The study was performed on Sprague Dawley rats with an average weight of 220 ± 40 g and 4-5 months old. Six experimental groups were composed of 10 rats per group. Hematological parameters, erythrocyte deformability, % hemolysis, 2.3bisphosphoglycerate, and methemoglobin values were measured in blood samples taken after 10 days of drug application. Erythrocyte count, hemoglobin amount, hematocrit value, serum potassium level, and erythrocyte deformability decreased in the ETH group. Leukocyte, platelet count, methemoglobin amount, and % hemolysis rates increased in the ETH group. The values of the ETH + CAR and ETH + VIN groups were found to be closer to the control group. In organophosphate poisoning such as ETH, the deformability ability of erythrocytes exposed to constant oxidative stress is changing, and therefore their ability to deliver oxygen to tissues is negatively affected. VIN and CAR may have improve on erythrocyte deformability in this type of intoxication.
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Affiliation(s)
- Tuba Özkul
- Erciyes University Health Vocational Collage, 38039 Kayseri, Turkey.
| | | | - Sami Aydoğan
- Physiology Department, Medical Faculty, Erciyes University, Turkey
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12
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Ivanov IT, Paarvanova BK. Differential dielectroscopic data on the relation of erythrocyte membrane skeleton to erythrocyte deformability and flicker. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2021; 50:69-86. [PMID: 33442752 DOI: 10.1007/s00249-020-01491-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/13/2020] [Accepted: 12/20/2020] [Indexed: 10/22/2022]
Abstract
Two dielectric relaxations, βsp (1.5 MHz) and γ1sp (7 MHz), have been detected on spectrin-based membrane skeleton (MS) of red blood cells (RBCs) using the plot of admittance changes at the spectrin denaturation temperature (Ivanov and Paarvanova in Bioelectrochemistry 110: 59-68, 2016, Electrochim Acta 317: 289-300, 2019a). In this study, we treated RBCs and RBC ghost membranes with agents that make membranes rigid and suppress membrane flicker, and studied the effect on βsp and γ1sp relaxations. Diamide (diazene dicarboxylic acid bis-(N,N-dimethylamide)) (up to 0.85 mM), taurine mustard (tris(2-chloroethyl)amine) (up to 2 mM), known to specifically cross-link and stiffen spectrin, and glutaraldehyde (up to 0.044%) all inhibited the relaxations in RBC ghost membranes. Similar inhibition was obtained resealing RBC ghost membranes with 2,3-diphosphoglicerate (up to 15 mM), binding WGA (wheat germ agglutinin) (up to 0.025 mg/ml) to exofacial aspect of RBCs, incubating RBCs in hypotonic (200 mOsm) and hypertonic (600-900 mOsm) media and depleting RBCs of ATP. By contrast, concanavalin A (1 mg/ml) and DIDS (4,4'-diiso-thiocyanato stilbene-2,2'-disulfonic acid) (75 μM, pH 8.2), both known to bind specifically band 3 integral protein of RBCs without effect on RBC membrane rigidity, did not affect the relaxations. We conclude there might be a relation between the strength of dielectric relaxations on MS spectrin and the deformability and flicker of RBC membrane.
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Affiliation(s)
- Ivan T Ivanov
- Department of Physics and Biophysics, Roentgenology and Radiology, Medical Faculty of Thracian University, 6000, Stara Zagora, Bulgaria.
| | - Boyana K Paarvanova
- Department of Physics and Biophysics, Roentgenology and Radiology, Medical Faculty of Thracian University, 6000, Stara Zagora, Bulgaria
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Bakker N, Schoorl M, Demirkiran A, Cense HA, Houdijk AP. Erythrocyte deformability and aggregation in morbidly obese women undergoing laparoscopic gastric bypass surgery and effects of oral omega-3 fatty acid supplementation. Clin Hemorheol Microcirc 2020; 75:303-311. [DOI: 10.3233/ch-190777] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND: An adequate erythrocyte function is vital for tissue oxygenation and wound healing. The erythrocyte membrane phospholipid composition plays an important role in erythrocyte function and administration of omega-3 fatty acids may provide a means to improve it. OBJECTIVE: To investigate peri-operative erythrocyte function and effects of oral omega-3 fatty acids in morbidly obese women undergoing gastric bypass surgery METHODS: Fifty-six morbidly obese women undergoing laparoscopic Roux-en-Y gastric bypass (LRYGB) surgery were randomized between a low calorie diet (LCD) during 2 weeks or oral omega-3 poly-unsaturated fatty acids (n-3 PUFAs) and a normal diet during 4 weeks. Peri-operative blood samples were analyzed with the Lorrca MaxSIS Ektacytometer for erythrocyte deformability and aggregability. RESULTS: There were no significant differences in erythrocyte function between the groups at any time point. Only erythrocyte aggregability parameters were affected by surgery. At six month follow-up, aggregation index (AI) and cholesterol, glucose and insulin were significantly improved. CONCLUSIONS: In this study, oral Omega-3 supplementation did not affect erythrocyte function compared to a LCD. Six months after surgery a significant improvement in AI and metabolic parameters was observed in both groups, contributing to a reduction in the risk at thromboembolic and cardiovascular complications.
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Affiliation(s)
- Nathalie Bakker
- Northwest Clinics Alkmaar, Alkmaar, The Netherlands
- Red Cross Hospital Beverwijk, Beverwijk, The Netherlands
- Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | | | | | - Huib A. Cense
- Red Cross Hospital Beverwijk, Beverwijk, The Netherlands
| | - Alexander P.J. Houdijk
- Northwest Clinics Alkmaar, Alkmaar, The Netherlands
- Red Cross Hospital Beverwijk, Beverwijk, The Netherlands
- Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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14
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Ahmadpoor P, Aglae C, Cariou S, Pambrun E, Renaud S, Garo F, Darmon R, Schultz C, Prelipcean C, Reboul P, Moranne O. Physiological role of plasma and its components and the clinical implications of different methods of apheresis: A narrative review. Ther Apher Dial 2020; 25:262-272. [PMID: 32710797 DOI: 10.1111/1744-9987.13567] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 06/17/2020] [Accepted: 07/22/2020] [Indexed: 12/23/2022]
Abstract
Nowadays, therapeutic plasmapheresis (TP) is accepted as part of the treatment for specific groups of diseases. The availability of different methods, including double filtration and adsorption, increases selectivity for the removal of substances. However, the use of these techniques requires a thorough understanding of the characteristics and components of plasma. By considering pivotal papers from several databases, the aim of this narrative review is to describe the characteristics of plasma related to apheresis techniques. We have tried to cover the clinical implications including physiology, estimation of plasma volume, viscosity, and a description of its components including the size, volume of distribution, and half-lives of the different substances to be removed or maintained depending on the clinical situation and applied apheresis technique. Applying this knowledge will help us to choose the right method and dosage and improve the efficacy of the procedure by preventing or addressing any complications.
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Affiliation(s)
- Pedram Ahmadpoor
- Service Nephrologie-Dialyse-Aphérèse, CHU Carémeau, Université de Montpellier-Nîmes, Nîmes, France
| | - Cedric Aglae
- Service Nephrologie-Dialyse-Aphérèse, CHU Carémeau, Université de Montpellier-Nîmes, Nîmes, France
| | - Sylvain Cariou
- Service Nephrologie-Dialyse-Aphérèse, CHU Carémeau, Université de Montpellier-Nîmes, Nîmes, France
| | - Emilie Pambrun
- Service Nephrologie-Dialyse-Aphérèse, CHU Carémeau, Université de Montpellier-Nîmes, Nîmes, France
| | - Sophie Renaud
- Service Nephrologie-Dialyse-Aphérèse, CHU Carémeau, Université de Montpellier-Nîmes, Nîmes, France
| | - Florian Garo
- Service Nephrologie-Dialyse-Aphérèse, CHU Carémeau, Université de Montpellier-Nîmes, Nîmes, France
| | - Ruben Darmon
- Service Nephrologie-Dialyse-Aphérèse, CHU Carémeau, Université de Montpellier-Nîmes, Nîmes, France
| | - Celine Schultz
- Service Nephrologie-Dialyse-Aphérèse, CHU Carémeau, Université de Montpellier-Nîmes, Nîmes, France
| | - Camelia Prelipcean
- Service Nephrologie-Dialyse-Aphérèse, CHU Carémeau, Université de Montpellier-Nîmes, Nîmes, France
| | - Pascal Reboul
- Service Nephrologie-Dialyse-Aphérèse, CHU Carémeau, Université de Montpellier-Nîmes, Nîmes, France
| | - Olivier Moranne
- Service Nephrologie-Dialyse-Aphérèse, CHU Carémeau, Université de Montpellier-Nîmes, Nîmes, France.,EA2415, Université de Montpellier, Montpellier, France
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15
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Gironi B, Kahveci Z, McGill B, Lechner BD, Pagliara S, Metz J, Morresi A, Palombo F, Sassi P, Petrov PG. Effect of DMSO on the Mechanical and Structural Properties of Model and Biological Membranes. Biophys J 2020; 119:274-286. [PMID: 32610089 PMCID: PMC7376087 DOI: 10.1016/j.bpj.2020.05.037] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 04/08/2020] [Accepted: 05/22/2020] [Indexed: 12/23/2022] Open
Abstract
Dimethyl sulfoxide (DMSO) is widely used in a number of biological and biotechnological applications, mainly because of its effects on the cell plasma membrane, but the molecular origins of this action are yet to be fully clarified. In this work, we used two- and three-component synthetic membranes (liposomes) and the plasma membrane of human erythrocytes to investigate the effect of DMSO when added to the membrane-solvating environment. Fourier transform infrared spectroscopy and thermal fluctuation spectroscopy revealed significant differences in the response of the two types of liposome systems to DMSO in terms of the bilayer thermotropic behavior, available free volume of the bilayer, its excess surface area, and bending elasticity. DMSO also alters the mechanical properties of the erythrocyte membrane in a concentration-dependent manner and is capable of increasing membrane permeability to ATP at even relatively low concentrations (3% v/v and above). Taken in its entirety, these results show that DMSO is likely to have a differential effect on heterogeneous biological membranes, depending on their local composition and structure, and could affect membrane-hosted biological functions.
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Affiliation(s)
- Beatrice Gironi
- Dipartimento di Chimica Biologia e Biotecnologie, Università di Perugia, Perugia, Italy
| | - Zehra Kahveci
- Living Systems Institute and School of Biosciences, University of Exeter, Exeter, United Kingdom
| | - Beth McGill
- Department of Physics and Astronomy, University of Exeter, Exeter, United Kingdom
| | - Bob-Dan Lechner
- Department of Physics and Astronomy, University of Exeter, Exeter, United Kingdom
| | - Stefano Pagliara
- Living Systems Institute and School of Biosciences, University of Exeter, Exeter, United Kingdom
| | - Jeremy Metz
- Living Systems Institute and School of Biosciences, University of Exeter, Exeter, United Kingdom
| | - Assunta Morresi
- Dipartimento di Chimica Biologia e Biotecnologie, Università di Perugia, Perugia, Italy
| | - Francesca Palombo
- Department of Physics and Astronomy, University of Exeter, Exeter, United Kingdom
| | - Paola Sassi
- Dipartimento di Chimica Biologia e Biotecnologie, Università di Perugia, Perugia, Italy.
| | - Peter G Petrov
- Department of Physics and Astronomy, University of Exeter, Exeter, United Kingdom.
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16
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A Portable Smartphone-linked Device for Direct, Rapid and Chemical-Free Hemoglobin Assay. Sci Rep 2020; 10:8606. [PMID: 32451400 PMCID: PMC7248091 DOI: 10.1038/s41598-020-65607-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 05/06/2020] [Indexed: 12/13/2022] Open
Abstract
We describe the development and clinical evaluation of an automated smartphone-linked sensor capable of chemical-free, quantitative measurement of hemoglobin concentration ([Hb]) in whole blood samples. We have demonstrated that our sensor could analyze an unprocessed blood specimen with a mean processing time of <8 s and provided the [Hb] results with ~99% accuracy against a reference hematology analyzer with coefficient of variation (CV) of 1.21% measured at [Hb] = 11.2 g/dL. Its diagnostic capability for anemia was evaluated by measuring [Hb] of 142 clinical blood specimens and comparing the results with those from an automated hematology analyzer (ADVIA 2120i, Siemens AG, Germany) and a portable hemoglobinomteter (Hb201+, Hemocue, Sweden). The sensor yielded comparable sensitivities and specificities of 87.50% and 100.00% for males, and 94.44% and 100.00% for females, respectively, for anemic detection. The results suggested that our optical sensor based on the intrinsic photothermal response of Hb molecules and advances in consumer electronics, particularly smartphone capabilities, enables a direct, chemical-free [Hb] assay accessible to people in both developed and developing countries.
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17
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Delveaux J, Turpin C, Veeren B, Diotel N, Bravo SB, Begue F, Álvarez E, Meilhac O, Bourdon E, Rondeau P. Antirhea borbonica Aqueous Extract Protects Albumin and Erythrocytes from Glycoxidative Damages. Antioxidants (Basel) 2020; 9:antiox9050415. [PMID: 32408712 PMCID: PMC7278591 DOI: 10.3390/antiox9050415] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/08/2020] [Accepted: 05/09/2020] [Indexed: 12/11/2022] Open
Abstract
Diabetes constitutes a major health problem associated with severe complications. In hyperglycemic conditions, chronically increased oxidation and glycation of circulating components lead to advanced glycation end-products (AGEs) formation, a key contributor in diabetes complication progression. In line with literature documenting the beneficial properties of herbal teas, this study evaluates the antioxidant/glycant properties of Antirhea borbonica (Ab). Ab aqueous extract effects were tested on human albumin or erythrocytes submitted to methyl glyoxal-mediated glycoxidative damages. By using mass spectrometry, Ab aqueous extracts revealed to be rich in polyphenols. All tested biomarkers of oxidation and glycation, such as AGE, ketoamine, oxidized thiol groups, were decreased in albumin when glycated in the presence of Ab aqueous extract. Ab extract preserve erythrocyte from methylglyoxal (MGO)-induced damages in terms of restored membrane deformability, reduced oxidative stress and eryptosis phenomenon. Antioxidant capacities of Ab extract on erythrocytes were retrieved in vivo in zebrafish previously infused with MGO. These results bring new evidences on the deleterious impacts of glycation on albumin and erythrocyte in diabetes. Furthermore, it reveals antioxidant and antiglycant properties of Ab that could be used for the dietary modulation of oxidative stress and glycation in hyperglycemic situations.
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Affiliation(s)
- Jade Delveaux
- Université de La Réunion, INSERM, UMR 1188 Diabète athérothombose Thérapies Réunion Océan Indien (DéTROI), 97400 Saint-Denis de La Réunion, France; (J.D.); (C.T.); (B.V.); (N.D.); (F.B.); (O.M.)
| | - Chloé Turpin
- Université de La Réunion, INSERM, UMR 1188 Diabète athérothombose Thérapies Réunion Océan Indien (DéTROI), 97400 Saint-Denis de La Réunion, France; (J.D.); (C.T.); (B.V.); (N.D.); (F.B.); (O.M.)
| | - Bryan Veeren
- Université de La Réunion, INSERM, UMR 1188 Diabète athérothombose Thérapies Réunion Océan Indien (DéTROI), 97400 Saint-Denis de La Réunion, France; (J.D.); (C.T.); (B.V.); (N.D.); (F.B.); (O.M.)
| | - Nicolas Diotel
- Université de La Réunion, INSERM, UMR 1188 Diabète athérothombose Thérapies Réunion Océan Indien (DéTROI), 97400 Saint-Denis de La Réunion, France; (J.D.); (C.T.); (B.V.); (N.D.); (F.B.); (O.M.)
| | - Susana B. Bravo
- Proteomic Unit and Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (CHUS), SERGAS, 15706 Santiago de Compostela, Spain; (S.B.B.); (E.Á.)
| | - Floran Begue
- Université de La Réunion, INSERM, UMR 1188 Diabète athérothombose Thérapies Réunion Océan Indien (DéTROI), 97400 Saint-Denis de La Réunion, France; (J.D.); (C.T.); (B.V.); (N.D.); (F.B.); (O.M.)
| | - Ezequiel Álvarez
- Proteomic Unit and Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (CHUS), SERGAS, 15706 Santiago de Compostela, Spain; (S.B.B.); (E.Á.)
- CIBERCV, 28029 Madrid, Spain
| | - Olivier Meilhac
- Université de La Réunion, INSERM, UMR 1188 Diabète athérothombose Thérapies Réunion Océan Indien (DéTROI), 97400 Saint-Denis de La Réunion, France; (J.D.); (C.T.); (B.V.); (N.D.); (F.B.); (O.M.)
- Centre hospitalier universitaire de La Réunion, 97400 Saint Denis, France
| | - Emmanuel Bourdon
- Université de La Réunion, INSERM, UMR 1188 Diabète athérothombose Thérapies Réunion Océan Indien (DéTROI), 97400 Saint-Denis de La Réunion, France; (J.D.); (C.T.); (B.V.); (N.D.); (F.B.); (O.M.)
- Correspondence: (E.B.); (P.R.); Tel.: +262(0)-2-62-93-88-43 (P.R.); Fax: +262(0)-2-62-93-88-01 (P.R.)
| | - Philippe Rondeau
- Université de La Réunion, INSERM, UMR 1188 Diabète athérothombose Thérapies Réunion Océan Indien (DéTROI), 97400 Saint-Denis de La Réunion, France; (J.D.); (C.T.); (B.V.); (N.D.); (F.B.); (O.M.)
- Correspondence: (E.B.); (P.R.); Tel.: +262(0)-2-62-93-88-43 (P.R.); Fax: +262(0)-2-62-93-88-01 (P.R.)
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18
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Yang Q, Noviana M, Zhao Y, Chen D, Wang X. Effect of curcumin extract against oxidative stress on both structure and deformation capability of red blood cell. J Biomech 2019; 95:109301. [PMID: 31443943 DOI: 10.1016/j.jbiomech.2019.07.045] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 07/31/2019] [Accepted: 07/31/2019] [Indexed: 01/31/2023]
Abstract
The normal deformability of erythrocytes plays an important role in ensuring blood mobility, erythrocyte longevity, and microcirculation, which is the ability of erythrocytes to change shapes in response to external forces. However, the effects of curcumin extracts on the deformability of erythrocytes have not yet been evaluated. Accordingly, in this study, we explored the effects of pre-treatment with curcumin extract on erythrocyte deformation and erythrocyte band 3 (SLC4A1; EB3) expression. We also evaluated the associations between EB3 expression and erythrocyte deformability induced by hydrogen peroxide. Blood samples were divided into the control group, pre-treatment group (treated with curcumin extract or vitamin C), and negative control group, and oxidant stress parameters, antioxidant status, erythrocyte deformability and elasticity, and EB3 modifications were evaluated using immunoblotting and immunofluorescence staining. Hydrogen peroxide significantly increased oxidative stress parameters, modulus elasticity values and clustered EB3 levels and induced conjugation of membrane proteins to form high-molecular-weight complexes (p < 0.05). Erythrocyte deformability and elasticity were significantly decreased in the treated groups compared with those in the control group. Overall, our findings suggested that pre-treatment with curcumin extracts increased antioxidant status, reduced EB3 cross-linking, and improved erythrocyte deformability, to an even better extent than vitamin C. These results provide important insights into the effects of treatment with curcumin extracts on erythrocyte damage and suggest that curcumin may have applications in antioxidant therapy.
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Affiliation(s)
- Qinqin Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, PR China
| | - Milody Noviana
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, PR China
| | - Yajin Zhao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, PR China
| | - Dong Chen
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, PR China
| | - Xiang Wang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, PR China.
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19
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Deng Y, Ma Q, Yuan H, Lum GC, Shum HC. Development of dual-component protein microparticles in all-aqueous systems for biomedical applications. J Mater Chem B 2019. [DOI: 10.1039/c8tb03074j] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Protein microparticles assisted by an emulsion droplet template have shown great promise in drug/cell delivery and tissue engineering, as well as diagnosis and treatment of diseases.
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Affiliation(s)
- Yi Deng
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
- Department of Mechanical Engineering
| | - Qingming Ma
- Department of Pharmaceutics
- School of Pharmacy
- Qingdao University
- Qingdao 266021
- China
| | - Hao Yuan
- Department of Mechanical Engineering
- University of Hong Kong
- Hong Kong SAR
- China
- HKU-Shenzhen Institute of Research and Innovation (HKU-SIRI)
| | - Galen Chit Lum
- Department of Mechanical and Industrial Engineering
- University of Toronto
- Toronto
- Canada
| | - Ho Cheung Shum
- Department of Mechanical Engineering
- University of Hong Kong
- Hong Kong SAR
- China
- HKU-Shenzhen Institute of Research and Innovation (HKU-SIRI)
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20
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Khongkhatithum C, Kadegasem P, Sasanakul W, Thampratankul L, Chuansumrit A, Sirachainan N. Abnormal red blood cell indices increase the risk of arterial ischemic stroke in children. J Clin Neurosci 2018; 62:117-120. [PMID: 30579844 DOI: 10.1016/j.jocn.2018.12.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 11/13/2018] [Accepted: 12/11/2018] [Indexed: 12/30/2022]
Abstract
A high red cell distribution width (RDW) and low hemoglobin level increase the risk of arterial ischemic stroke (AIS), mostly in adults. The mechanisms related to AIS remain unknown. A total of 233 subjects (90 patients and 143 healthy controls [HC]) were enrolled. The mean(SD) age in patients and HC was 9.5(3.8) and 11.4(1.8) years, respectively. We found increased odds ratios (ORs) for large vessel and small vessel subtypes in patients without underlying diseases with a mean corpuscular volume (MCV) <80 fL (OR: 5.4, 95%CI 1.8-16.3 and 2.8, 95%CI 1.2-7.2), mean corpuscular hemoglobin levels <27 pg (OR: 2.9, 95%CI 1.0-6.7 and 2.6, 95%CI 1.0-6.7), and RDW >15% (OR: 5.5, 95%CI 1.3-24.5 and 2.7, 95%CI 1.0-7.3). RBC indices showed significant correlations with TM levels. Therefore, low MCV and MCH levels, and a high RDW were risk factors for AIS and associated with TM levels in this population.
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Affiliation(s)
- Chaiyos Khongkhatithum
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Praguywan Kadegasem
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Werasak Sasanakul
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Lunliya Thampratankul
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Ampaiwan Chuansumrit
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Nongnuch Sirachainan
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
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21
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Lim H, Back SM, Nam J, Choi H. Determination of red blood cell deformability using centrifugal force in a three-dimensional-printed mini-disk (3D-PMD). PLoS One 2018; 13:e0197619. [PMID: 29787582 PMCID: PMC5963765 DOI: 10.1371/journal.pone.0197619] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 05/05/2018] [Indexed: 01/15/2023] Open
Abstract
Measuring red blood cell (RBC) deformability has become important for clinical disease diagnostics. Various methods for measuring RBC deformability have been developed; however, they require costly and large instruments, long measuring time, and skilled personnel. In this study, we present a three-dimensional-printed mini-disk (3D-PMD) for measuring RBC deformability to overcome the previous limitations. For a miniaturized and low-cost setup, the 3D-PMD was fabricated by a 3D printing technique, which had not yet been used for fabricating a lab-on-a-compact disk (LOCD). Using a 3D printing technique, a multi-layered fluidic channel on the mini CD could be fabricated easily. During rotation by a spinning motor, the difference of the length of compressed RBCs in the fluidic channel was measured and analysed as compressibility indices (CIs) of normal and glutaraldehyde-treated hardened RBCs. The rotation speed and time were decided as 3000 rpm and 30 min, respectively, at which the difference of CI values between normal and hardened RBCs was largest (CInormal-CIhardened = 0.195).
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Affiliation(s)
- Hyunjung Lim
- Department of Medical Sciences, Graduate School of Medicine, Korea University, Guro-gu, Seoul, Korea
| | - Seung Min Back
- Department of Medical Sciences, Graduate School of Medicine, Korea University, Guro-gu, Seoul, Korea
| | - Jeonghun Nam
- Department of Laboratory Medicine, College of Medicine, Korea University, Guro-gu, Seoul, Korea
- Department of Emergency Medicine, College of Medicine, Korea University, Guro-gu, Seoul, Korea
- * E-mail: (JN); (HC)
| | - Hyuk Choi
- Department of Medical Sciences, Graduate School of Medicine, Korea University, Guro-gu, Seoul, Korea
- * E-mail: (JN); (HC)
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22
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Bento D, Rodrigues RO, Faustino V, Pinho D, Fernandes CS, Pereira AI, Garcia V, Miranda JM, Lima R. Deformation of Red Blood Cells, Air Bubbles, and Droplets in Microfluidic Devices: Flow Visualizations and Measurements. MICROMACHINES 2018; 9:E151. [PMID: 30424085 PMCID: PMC6187860 DOI: 10.3390/mi9040151] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 03/21/2018] [Accepted: 03/21/2018] [Indexed: 12/30/2022]
Abstract
Techniques, such as micropipette aspiration and optical tweezers, are widely used to measure cell mechanical properties, but are generally labor-intensive and time-consuming, typically involving a difficult process of manipulation. In the past two decades, a large number of microfluidic devices have been developed due to the advantages they offer over other techniques, including transparency for direct optical access, lower cost, reduced space and labor, precise control, and easy manipulation of a small volume of blood samples. This review presents recent advances in the development of microfluidic devices to evaluate the mechanical response of individual red blood cells (RBCs) and microbubbles flowing in constriction microchannels. Visualizations and measurements of the deformation of RBCs flowing through hyperbolic, smooth, and sudden-contraction microchannels were evaluated and compared. In particular, we show the potential of using hyperbolic-shaped microchannels to precisely control and assess small changes in RBC deformability in both physiological and pathological situations. Moreover, deformations of air microbubbles and droplets flowing through a microfluidic constriction were also compared with RBCs deformability.
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Affiliation(s)
- David Bento
- Instituto Politécnico de Bragança, ESTiG/IPB, C. Sta. Apolónia, 5301-857 Bragança, Portugal.
- CEFT, Faculdade de Engenharia da Universidade do Porto (FEUP) Rua Roberto Frias, 4800-058 Porto, Portugal.
| | - Raquel O Rodrigues
- Instituto Politécnico de Bragança, ESTiG/IPB, C. Sta. Apolónia, 5301-857 Bragança, Portugal.
- LCM-Laboratory of Catalysis and Materials-Associate Laboratory LSRE/LCM, Faculdade de Engenharia da Universidade do Porto (FEUP) Rua Roberto Frias, 4800-058 Porto, Portugal.
| | - Vera Faustino
- MEMS-UMinho Research Unit, Universidade do Minho, DEI, Campus de Azurém, 4800-058 Guimarães, Portugal.
| | - Diana Pinho
- Instituto Politécnico de Bragança, ESTiG/IPB, C. Sta. Apolónia, 5301-857 Bragança, Portugal.
- CEFT, Faculdade de Engenharia da Universidade do Porto (FEUP) Rua Roberto Frias, 4800-058 Porto, Portugal.
- Centro de Investigação em Digitalização e Robótica Inteligente (CeDRI), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
| | - Carla S Fernandes
- Instituto Politécnico de Bragança, ESTiG/IPB, C. Sta. Apolónia, 5301-857 Bragança, Portugal.
| | - Ana I Pereira
- Instituto Politécnico de Bragança, ESTiG/IPB, C. Sta. Apolónia, 5301-857 Bragança, Portugal.
- Centro de Investigação em Digitalização e Robótica Inteligente (CeDRI), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
- Algoritmi R&D Centre, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal.
| | - Valdemar Garcia
- Instituto Politécnico de Bragança, ESTiG/IPB, C. Sta. Apolónia, 5301-857 Bragança, Portugal.
| | - João M Miranda
- CEFT, Faculdade de Engenharia da Universidade do Porto (FEUP) Rua Roberto Frias, 4800-058 Porto, Portugal.
| | - Rui Lima
- CEFT, Faculdade de Engenharia da Universidade do Porto (FEUP) Rua Roberto Frias, 4800-058 Porto, Portugal.
- MEtRiCS, Mechanical Engineering Department, Campus de Azurém, University of Minho, 4800-058 Guimarães, Portugal.
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Pan DC, Myerson JW, Brenner JS, Patel PN, Anselmo AC, Mitragotri S, Muzykantov V. Nanoparticle Properties Modulate Their Attachment and Effect on Carrier Red Blood Cells. Sci Rep 2018; 8:1615. [PMID: 29371620 PMCID: PMC5785499 DOI: 10.1038/s41598-018-19897-8] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 01/04/2018] [Indexed: 01/01/2023] Open
Abstract
Attachment of nanoparticles (NPs) to the surface of carrier red blood cells (RBCs) profoundly alters their interactions with the host organism, decelerating NP clearance from the bloodstream while enabling NP transfer from the RBC surface to the vascular cells. These changes in pharmacokinetics of NPs imposed by carrier RBCs are favorable for many drug delivery purposes. On the other hand, understanding effects of NPs on the carrier RBCs is vital for successful translation of this novel drug delivery paradigm. Here, using two types of distinct nanoparticles (polystyrene (PSNP) and lysozyme-dextran nanogels (LDNG)) we assessed potential adverse and sensitizing effects of surface adsorption of NPs on mouse and human RBCs. At similar NP loadings (approx. 50 particles per RBC), adsorption of PSNPs, but not LDNGs, induces RBCs agglutination and sensitizes RBCs to damage by osmotic, mechanical and oxidative stress. PSNPs, but not LDNGs, increase RBC stiffening and surface exposure of phosphatidylserine, both known to accelerate RBC clearance in vivo. Therefore, NP properties and loading amounts have a profound impact on RBCs. Furthermore, LDNGs appear conducive to nanoparticle drug delivery using carrier RBCs.
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Affiliation(s)
- Daniel C Pan
- Department of Pharmacology and Center for Translational Targeted Therapeutics and Nanomedicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, United States
| | - Jacob W Myerson
- Department of Pharmacology and Center for Translational Targeted Therapeutics and Nanomedicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, United States
| | - Jacob S Brenner
- Department of Pharmacology and Center for Translational Targeted Therapeutics and Nanomedicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, United States
- Pulmonary and Critical Care Division, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, United States
| | - Priyal N Patel
- Department of Pharmacology and Center for Translational Targeted Therapeutics and Nanomedicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, United States
| | - Aaron C Anselmo
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, 27599, United States
| | - Samir Mitragotri
- School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, 02138, United States
| | - Vladimir Muzykantov
- Department of Pharmacology and Center for Translational Targeted Therapeutics and Nanomedicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, United States.
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24
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Namgung B, Ng YC, Leo HL, Rifkind JM, Kim S. Near-Wall Migration Dynamics of Erythrocytes in Vivo: Effects of Cell Deformability and Arteriolar Bifurcation. Front Physiol 2017; 8:963. [PMID: 29238303 PMCID: PMC5712576 DOI: 10.3389/fphys.2017.00963] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 11/13/2017] [Indexed: 01/12/2023] Open
Abstract
Red blood cell (RBC) deformability has a significant impact on microcirculation by affecting cell dynamics. Despite previous studies that have demonstrated the margination of rigid cells and particles in vitro, little information is available on the in vivo margination of deformability-impaired RBCs under physiological flow and hematocrit conditions. Thus, in this study, we examined how the deformability-dependent, RBC migration alters the cell distribution under physiological conditions, particularly in arteriolar network flows. The hardened RBCs (hRBCs) were found to preferentially flow near the vessel walls of small arterioles (diameter = 47.1-93.3 μm). The majority of the hRBCs (63%) were marginated within the range of 0.7R-0.9R (R: radial position normalized by vessel radius), indicating that the hRBCs preferentially accumulated near the vessel walls. The laterally marginated hRBCs maintained their lateral positions near the walls while traversing downstream with attenuated radial dispersion. In addition, the immediate displacement of RBCs while traversing a bifurcation also contributes to the near-wall accumulation of hRBCs. The notable difference in the inward migration between the marginated nRBCs and hRBCs after bifurcations further supports the potential role of bifurcations in the accumulation of hRBCs near the walls.
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Affiliation(s)
- Bumseok Namgung
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
- Biomedical Institute for Global Health Research and Technology, National University of Singapore, Singapore, Singapore
| | - Yan Cheng Ng
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore, Singapore
| | - Hwa Liang Leo
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
| | - Joseph M. Rifkind
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins Medicine, Baltimore, MD, United States
| | - Sangho Kim
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
- Biomedical Institute for Global Health Research and Technology, National University of Singapore, Singapore, Singapore
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore, Singapore
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25
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Zhu Q, Salehyar S, Cabrales P, Asaro RJ. Prospects for Human Erythrocyte Skeleton-Bilayer Dissociation during Splenic Flow. Biophys J 2017; 113:900-912. [PMID: 28834726 PMCID: PMC5567461 DOI: 10.1016/j.bpj.2017.05.052] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 05/16/2017] [Accepted: 05/23/2017] [Indexed: 12/17/2022] Open
Abstract
Prospects of vesiculation occurring during splenic flow of erythrocytes are addressed via model simulations of RBC flow through the venous slits of the human spleen. Our model is multiscale and contains a thermally activated rate-dependent description of the entropic elasticity of the RBC spectrin cytoskeleton, including domain unfolding/refolding. Our model also includes detail of the skeleton attachment to the fluidlike lipid bilayer membrane, including a specific accounting for the expansion/contraction of the skeleton that may occur via anchor protein diffusive motion, that is, band 3 and glycophorin, through the membrane. This ability allows us to follow the change in anchor density and thereby the strength of the skeleton/membrane attachment. We define a negative pressure between the skeleton/membrane connection that promotes separation; critical levels for this are estimated using published data on the work of adhesion of this connection. By following the maximum range of negative pressure, along with the observed slight decrease in skeletal density, we conclude that there must be biochemical influences that probably include binding of degraded hemoglobin, among other things, that significantly reduce effective attachment density. These findings are consistent with reported trends in vesiculation that are believed to occur in cases of various hereditary anemias and during blood storage. Our findings also suggest pathways for further study of erythrocyte vesiculation that point to the criticality of understanding the biochemical phenomena involved with cytoskeleton/membrane attachment.
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Affiliation(s)
- Qiang Zhu
- Department of Structural Engineering, University of California, San Diego, La Jolla, California
| | - Sara Salehyar
- Department of Structural Engineering, University of California, San Diego, La Jolla, California
| | - Pedro Cabrales
- Department of Structural Engineering, University of California, San Diego, La Jolla, California
| | - Robert J Asaro
- Department of Structural Engineering, University of California, San Diego, La Jolla, California.
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26
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Radosinska J, Vrbjar N. The role of red blood cell deformability and Na,K-ATPase function in selected risk factors of cardiovascular diseases in humans: focus on hypertension, diabetes mellitus and hypercholesterolemia. Physiol Res 2017; 65 Suppl 1:S43-54. [PMID: 27643939 DOI: 10.33549/physiolres.933402] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Deformability of red blood cells (RBC) is the ability of RBC to change their shape in order to pass through narrow capillaries in circulation. Deterioration in deformability of RBC contributes to alterations in microcirculatory blood flow and delivery of oxygen to tissues. Several factors are responsible for maintenance of RBC deformability. One of them is the Na,K-ATPase known as crucial enzyme in maintenance of intracellular ionic homeostasis affecting thus regulation of cellular volume and consequently RBC deformability. Decreased deformability of RBC has been found to be the marker of adverse outcomes in cardiovascular diseases (CVD) and the presence of cardiovascular risk factors influences rheological properties of the blood. This review summarizes knowledge concerning the RBC deformability in connection with selected risk factors of CVD, including hypertension, hyperlipidemia, and diabetes mellitus, based exclusively on papers from human studies. We attempted to provide an update on important issues regarding the role of Na,K-ATPase in RBC deformability. In patients suffering from hypertension as well as diabetes mellitus the Na,K-ATPase appears to be responsible for the changes leading to alterations in RBC deformability. The triggering factor for changes of RBC deformability during hypercholesterolemia seems to be the increased content of cholesterol in erythrocyte membranes.
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Affiliation(s)
- J Radosinska
- Institute of Physiology, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovak Republic; Institute for Heart Research, Slovak Academy of Sciences, Bratislava, Slovak Republic.
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Abstract
Red blood cell responses during a long-standing load were experimentally investigated. With a high-speed camera and a high-speed actuator, we were able to manipulate cells staying inside a microfluidic constriction, and each cell was compressed due to the geometric constraints. During the load inside the constriction, the color of the cells was found to gradually darken, while the cell lengths became shorter and shorter. According to the analysis results of a 5 min load, the average increase of the cell darkness was 60.9 in 8-bit color resolution, and the average shrinkage of the cell length was 15% of the initial length. The same tendency was consistently observed from cell to cell. A correlation between the changes of the color and the length were established based on the experimental results. The changes are believed partially due to the viscoelastic properties of the cells that the cells’ configurations change with time for adapting to the confined space inside the constriction.
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28
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Go T, Byeon H, Lee SJ. Focusing and alignment of erythrocytes in a viscoelastic medium. Sci Rep 2017; 7:41162. [PMID: 28117428 PMCID: PMC5259727 DOI: 10.1038/srep41162] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 12/14/2016] [Indexed: 12/30/2022] Open
Abstract
Viscoelastic fluid flow-induced cross-streamline migration has recently received considerable attention because this process provides simple focusing and alignment over a wide range of flow rates. The lateral migration of particles depends on the channel geometry and physicochemical properties of particles. In this study, digital in-line holographic microscopy (DIHM) is employed to investigate the lateral migration of human erythrocytes induced by viscoelastic fluid flow in a rectangular microchannel. DIHM provides 3D spatial distributions of particles and information on particle orientation in the microchannel. The elastic forces generated in the pressure-driven flows of a viscoelastic fluid push suspended particles away from the walls and enforce erythrocytes to have a fixed orientation. Blood cell deformability influences the lateral focusing and fixed orientation in the microchannel. Different from rigid spheres and hardened erythrocytes, deformable normal erythrocytes disperse from the channel center plane, as the flow rate increases. Furthermore, normal erythrocytes have a higher angle of inclination than hardened erythrocytes in the region near the side-walls of the channel. These results may guide the label-free diagnosis of hematological diseases caused by abnormal erythrocyte deformability.
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Affiliation(s)
- Taesik Go
- Center for Biofluid and Biomimic Research, Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 790-784, South Korea
| | - Hyeokjun Byeon
- Center for Biofluid and Biomimic Research, Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 790-784, South Korea
| | - Sang Joon Lee
- Center for Biofluid and Biomimic Research, Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 790-784, South Korea
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29
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Kim U, Song J, Ryu S, Kim S, Joo C. A Rapid and Chemical-free Hemoglobin Assay with Photothermal Angular Light Scattering. J Vis Exp 2016. [PMID: 28060269 DOI: 10.3791/55006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Photo-thermal angular light scattering (PT-AS) is a novel optical method for measuring the hemoglobin concentration ([Hb]) of blood samples. On the basis of the intrinsic photothermal response of hemoglobin molecules, the sensor enables high-sensitivity, chemical-free measurement of [Hb]. [Hb] detection capability with a limit of 0.12 g/dl over the range of 0.35 - 17.9 g/dl has been demonstrated previously. The method can be readily implemented using inexpensive consumer electronic devices such as a laser pointer and a webcam. The use of a micro-capillary tube as a blood container also enables the hemoglobin assay with a nanoliter-scale blood volume and a low operating cost. Here, detailed instructions for the PT-AS optical setup and signal processing procedures are presented. Experimental protocols and representative results for blood samples in anemic conditions ([Hb] = 5.3, 7.5, and 9.9 g/dl) are also provided, and the measurements are compared with those from a hematology analyzer. Its simplicity in implementation and operation should enable its wide adoption in clinical laboratories and resource-limited settings.
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Affiliation(s)
- Uihan Kim
- School of Mechanical Engineering, Yonsei University
| | - Jaewoo Song
- Department of Laboratory Medicine, Yonsei University
| | - Suho Ryu
- School of Mechanical Engineering, Yonsei University
| | - Soocheol Kim
- School of Mechanical Engineering, Yonsei University
| | - Chulmin Joo
- School of Mechanical Engineering, Yonsei University;
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30
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Schreier DA, Forouzan O, Hacker TA, Sheehan J, Chesler N. Increased Red Blood Cell Stiffness Increases Pulmonary Vascular Resistance and Pulmonary Arterial Pressure. J Biomech Eng 2016; 138:021012. [PMID: 26638883 DOI: 10.1115/1.4032187] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Indexed: 12/13/2022]
Abstract
Patients with sickle cell anemia (SCD) and pulmonary hypertension (PH) have a significantly increased risk of sudden death compared to patients with SCD alone. Sickled red blood cells (RBCs) are stiffer, more dense, more frequently undergo hemolysis, and have a sixfold shorter lifespan compared to normal RBCs. Here, we sought to investigate the impact of increased RBC stiffness, independent of other SCD-related biological and mechanical RBC abnormalities, on the hemodynamic changes that ultimately cause PH and increase mortality in SCD. To do so, pulmonary vascular impedance (PVZ) measures were recorded in control C57BL6 mice before and after ∼50 μl of blood (Hct = 45%) was extracted and replaced with an equal volume of blood containing either untreated RBCs or RBCs chemically stiffened with glutaraldehyde (Hct = 45%). Chemically stiffened RBCs increased mean pulmonary artery pressure (mPAP) (13.5 ± 0.6 mmHg at baseline to 23.2 ± 0.7 mmHg after the third injection), pulmonary vascular resistance (PVR) (1.23 ± 0.11 mmHg*min/ml at baseline to 2.24 ± 0.14 mmHg*min/ml after the third injection), and wave reflections (0.31 ± 0.02 at baseline to 0.43 ± 0.03 after the third injection). Chemically stiffened RBCs also decreased cardiac output, but did not change hematocrit, blood viscosity, pulmonary arterial compliance, or heart rate. The main finding of this study is that increased RBC stiffness alone affects pulmonary pulsatile hemodynamics, which suggests that RBC stiffness plays an important role in the development of PH in patients with SCD.
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Mizoue K, Phan MH, Tsai CHD, Kaneko M, Kang J, Chung WK. Gravity-Based Precise Cell Manipulation System Enhanced by In-Phase Mechanism. MICROMACHINES 2016; 7:mi7070116. [PMID: 30404289 PMCID: PMC6190453 DOI: 10.3390/mi7070116] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 06/30/2016] [Accepted: 07/05/2016] [Indexed: 01/12/2023]
Abstract
This paper proposes a gravity-based system capable of generating high-resolution pressure for precise cell manipulation or evaluation in a microfluidic channel. While the pressure resolution of conventional pumps for microfluidic applications is usually about hundreds of pascals as the resolution of their feedback sensors, precise cell manipulation at the pascal level cannot be done. The proposed system successfully achieves a resolution of 100 millipascals using water head pressure with an in-phase noise cancelation mechanism. The in-phase mechanism aims to suppress the noises from ambient vibrations to the system. The proposed pressure system is tested with a microfluidic platform for pressure validation. The experimental results show that the in-phase mechanism effectively reduces the pressure turbulence, and the pressure-driven cell movement matches the theoretical simulations. Preliminary experiments on deformability evaluation with red blood cells under incremental pressures of one pascal are successfully performed. Different deformation patterns are observed from cell to cell under precise pressure control.
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Affiliation(s)
- Koji Mizoue
- Department of Mechanical Engineering, Osaka University, Suita 565-0871, Japan.
| | - Manh Hao Phan
- Department of Mechanical Engineering, Osaka University, Suita 565-0871, Japan.
| | | | - Makoto Kaneko
- Department of Mechanical Engineering, Osaka University, Suita 565-0871, Japan.
| | - Junsu Kang
- Department of Mechanical Engineering, Pohang 790-784, Korea.
| | - Wan Kyun Chung
- Department of Mechanical Engineering, Pohang 790-784, Korea.
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33
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Sickle cell disease biochip: a functional red blood cell adhesion assay for monitoring sickle cell disease. Transl Res 2016; 173:74-91.e8. [PMID: 27063958 PMCID: PMC4959913 DOI: 10.1016/j.trsl.2016.03.008] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 03/08/2016] [Accepted: 03/12/2016] [Indexed: 01/10/2023]
Abstract
Sickle cell disease (SCD) afflicts millions of people worldwide and is associated with considerable morbidity and mortality. Chronic and acute vaso-occlusion are the clinical hallmarks of SCD and can result in pain crisis, widespread organ damage, and early movtality. Even though the molecular underpinnings of SCD were identified more than 60 years ago, there are no molecular or biophysical markers of disease severity that are feasibly measured in the clinic. Abnormal cellular adhesion to vascular endothelium is at the root of vaso-occlusion. However, cellular adhesion is not currently evaluated clinically. Here, we present a clinically applicable microfluidic device (SCD biochip) that allows serial quantitative evaluation of red blood cell (RBC) adhesion to endothelium-associated protein-immobilized microchannels, in a closed and preprocessing-free system. With the SCD biochip, we have analyzed blood samples from more than 100 subjects and have shown associations between the measured RBC adhesion to endothelium-associated proteins (fibronectin and laminin) and individual RBC characteristics, including hemoglobin content, fetal hemoglobin concentration, plasma lactate dehydrogenase level, and reticulocyte count. The SCD biochip is a functional adhesion assay, reflecting quantitative evaluation of RBC adhesion, which could be used at baseline, during crises, relative to various long-term complications, and before and after therapeutic interventions.
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34
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Bokori-Brown M, Petrov PG, Khafaji MA, Mughal MK, Naylor CE, Shore AC, Gooding KM, Casanova F, Mitchell TJ, Titball RW, Winlove CP. Red Blood Cell Susceptibility to Pneumolysin: CORRELATION WITH MEMBRANE BIOCHEMICAL AND PHYSICAL PROPERTIES. J Biol Chem 2016; 291:10210-27. [PMID: 26984406 DOI: 10.1074/jbc.m115.691899] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Indexed: 12/20/2022] Open
Abstract
This study investigated the effect of the biochemical and biophysical properties of the plasma membrane as well as membrane morphology on the susceptibility of human red blood cells to the cholesterol-dependent cytolysin pneumolysin, a key virulence factor of Streptococcus pneumoniae, using single cell studies. We show a correlation between the physical properties of the membrane (bending rigidity and surface and dipole electrostatic potentials) and the susceptibility of red blood cells to pneumolysin-induced hemolysis. We demonstrate that biochemical modifications of the membrane induced by oxidative stress, lipid scrambling, and artificial cell aging modulate the cell response to the toxin. We provide evidence that the diversity of response to pneumolysin in diabetic red blood cells correlates with levels of glycated hemoglobin and that the mechanical properties of the red blood cell plasma membrane are altered in diabetes. Finally, we show that diabetic red blood cells are more resistant to pneumolysin and the related toxin perfringolysin O relative to healthy red blood cells. Taken together, these studies indicate that the diversity of cell response to pneumolysin within a population of human red blood cells is influenced by the biophysical and biochemical status of the plasma membrane and the chemical and/or oxidative stress pre-history of the cell.
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Affiliation(s)
- Monika Bokori-Brown
- From the College of Life and Environmental Sciences, School of Biosciences, University of Exeter, Exeter EX4 4QD, United Kingdom,
| | - Peter G Petrov
- the College of Engineering, Mathematics and Physical Sciences, School of Physics, University of Exeter, Exeter EX4 4QL, United Kingdom
| | - Mawya A Khafaji
- the College of Engineering, Mathematics and Physical Sciences, School of Physics, University of Exeter, Exeter EX4 4QL, United Kingdom
| | - Muhammad K Mughal
- the Institute of Microbiology and Infection, University of Birmingham, Birmingham B15 2TT, United Kingdom
| | - Claire E Naylor
- the Department of Biological Sciences, Birkbeck College, Malet Street, London WC1E 7HX, United Kingdom
| | - Angela C Shore
- the Department of Diabetes and Vascular Medicine, University of Exeter Medical School, Barrack Road, Exeter EX2 5AX, United Kingdom, the National Institute for Health Research Exeter Clinical Research Facility, Royal Devon and Exeter National Health Service Foundation Trust, Exeter EX2 5DW, United Kingdom, and
| | - Kim M Gooding
- the Department of Diabetes and Vascular Medicine, University of Exeter Medical School, Barrack Road, Exeter EX2 5AX, United Kingdom, the National Institute for Health Research Exeter Clinical Research Facility, Royal Devon and Exeter National Health Service Foundation Trust, Exeter EX2 5DW, United Kingdom, and
| | - Francesco Casanova
- the Department of Diabetes and Vascular Medicine, University of Exeter Medical School, Barrack Road, Exeter EX2 5AX, United Kingdom, the National Institute for Health Research Exeter Clinical Research Facility, Royal Devon and Exeter National Health Service Foundation Trust, Exeter EX2 5DW, United Kingdom, and
| | - Tim J Mitchell
- the Institute of Microbiology and Infection, University of Birmingham, Birmingham B15 2TT, United Kingdom
| | - Richard W Titball
- From the College of Life and Environmental Sciences, School of Biosciences, University of Exeter, Exeter EX4 4QD, United Kingdom
| | - C Peter Winlove
- the College of Engineering, Mathematics and Physical Sciences, School of Physics, University of Exeter, Exeter EX4 4QL, United Kingdom
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36
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Kim U, Song J, Lee D, Ryu S, Kim S, Hwang J, Joo C. Capillary-scale direct measurement of hemoglobin concentration of erythrocytes using photothermal angular light scattering. Biosens Bioelectron 2015; 74:469-75. [PMID: 26176206 DOI: 10.1016/j.bios.2015.06.066] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Revised: 06/26/2015] [Accepted: 06/26/2015] [Indexed: 11/19/2022]
Abstract
We present a direct, rapid and chemical-free detection method for hemoglobin concentration ([Hb]), based on photothermal angular light scattering. The iron oxides contained in hemoglobin molecules exhibit high absorption of 532-nm light and generate heat under the illumination of 532-nm light, which subsequently alters the refractive index of blood. We measured this photothermal change in refractive index by employing angular light scattering spectroscopy with the goal of quantifying [Hb] in blood samples. Highly sensitive [Hb] measurement of blood samples was performed by monitoring the shifts in angularly dispersed scattering patterns from the blood-loaded microcapillary tubes. Our system measured [Hb] over the range of 0.35-17.9 g/dL with a detection limit of ~0.12 g/dL. Our sensor was characterized by excellent correlation with a reference hematology analyzer (r>0.96), and yielded a precision of 0.63 g/dL for a blood sample of 9.0 g/dL.
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Affiliation(s)
- Uihan Kim
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Jaewoo Song
- Department of Laboratory Medicine, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Donghak Lee
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Suho Ryu
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Soocheol Kim
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Jaehyun Hwang
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Chulmin Joo
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea.
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37
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Rorai C, Touchard A, Zhu L, Brandt L. Motion of an elastic capsule in a constricted microchannel. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2015; 38:134. [PMID: 26002531 DOI: 10.1140/epje/i2015-15049-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Revised: 03/20/2015] [Accepted: 04/10/2015] [Indexed: 06/04/2023]
Abstract
We study the motion of an elastic capsule through a microchannel characterized by a localized constriction. We consider a capsule with a stress-free spherical shape and impose its steady-state configuration in an infinitely long straight channel as the initial condition for our calculations. We report how the capsule deformation, velocity, retention time, and maximum stress of the membrane are affected by the capillary number, Ca , and the constriction shape. We estimate the deformation by measuring the variation of the three-dimensional surface area and a series of alternative quantities easier to extract from experiments. These are the Taylor parameter, the perimeter and the area of the capsule in the spanwise plane. We find that the perimeter is the quantity that best reproduces the behavior of the three-dimensional surface area. This is maximum at the centre of the constriction and shows a second peak after it, whose location depends on the Ca number. We observe that, in general, area-deformation-correlated quantities grow linearly with Ca , while velocity-correlated quantities saturate for large Ca but display a steeper increase for small Ca . The velocity of the capsule divided by the velocity of the flow displays, surprisingly, two different qualitative behaviors for small and large capillary numbers. Finally, we report that longer constrictions and spanwise wall bounded (versus spanwise periodic) domains cause larger deformations and velocities. If the deformation and velocity in the spanwise wall bounded domains are rescaled by the initial equilibrium deformation and velocity, their behavior is undistinguishable from that in a periodic domain. In contrast, a remarkably different behavior is reported in sinusoidally shaped and smoothed rectangular constrictions indicating that the capsule dynamics is particularly sensitive to abrupt changes in the cross section. In a smoothed rectangular constriction larger deformations and velocities occur over a larger distance.
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Affiliation(s)
- Cecilia Rorai
- Linné Flow Centre and Swedish e-Science Research Centre (SeRC), KTH Mechanics, SE-10044, Stockholm, Sweden,
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Myrand-Lapierre ME, Deng X, Ang RR, Matthews K, Santoso AT, Ma H. Multiplexed fluidic plunger mechanism for the measurement of red blood cell deformability. LAB ON A CHIP 2015; 15:159-67. [PMID: 25325848 DOI: 10.1039/c4lc01100g] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The extraordinary deformability of red blood cells gives them the ability to repeatedly transit through the microvasculature of the human body. The loss of this capability is part of the pathology of a wide range of diseases including malaria, hemoglobinopathies, and micronutrient deficiencies. We report on a technique for multiplexed measurements of the pressure required to deform individual red blood cell through micrometer-scale constrictions. This measurement is performed by first infusing single red blood cells into a parallel array of ~1.7 μm funnel-shaped constrictions. Next, a saw-tooth pressure waveform is applied across the constrictions to squeeze each cell through its constriction. The threshold deformation pressure is then determined by relating the pressure-time data with the video of the deformation process. Our key innovation is a self-compensating fluidic network that ensures identical pressures are applied to each cell regardless of its position, as well as the presence of cells in neighboring constrictions. These characteristics ensure the consistency of the measurement process and robustness against blockages of the constrictions by rigid cells and debris. We evaluate this technique using in vitro cultures of RBCs infected with P. falciparum, the parasite that causes malaria, to demonstrate the ability to profile the deformability signature of a heterogeneous sample.
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Affiliation(s)
- Marie-Eve Myrand-Lapierre
- Department of Mechanical Engineering, University of British Columbia, 2054-6250 Applied Science Lane, Vancouver, BC, Canada V6T 1Z4.
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Cui J, Björnmalm M, Liang K, Xu C, Best JP, Zhang X, Caruso F. Super-soft hydrogel particles with tunable elasticity in a microfluidic blood capillary model. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:7295-9. [PMID: 25209733 DOI: 10.1002/adma.201402753] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Revised: 08/06/2014] [Indexed: 05/19/2023]
Abstract
Super-soft PEG hydrogel particles with tunable elasticity are prepared via a mesoporous silica templating method. The deformability behavior of these particles, in a microfluidic blood-capillary model, can be tailored to be similar to that of human red blood cells. These results provide a new platform for the design and development of soft hydrogel particles for investigating bio-nano interactions.
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Affiliation(s)
- Jiwei Cui
- Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
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Zeng NF, Ristenpart WD. Mechanical response of red blood cells entering a constriction. BIOMICROFLUIDICS 2014; 8:064123. [PMID: 25553197 PMCID: PMC4265125 DOI: 10.1063/1.4904058] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 12/02/2014] [Indexed: 05/15/2023]
Abstract
Most work on the dynamic response of red blood cells (RBCs) to hydrodynamic stress has focused on linear velocity profiles. Relatively little experimental work has examined how individual RBCs respond to pressure driven flow in more complex geometries, such as the flow at the entrance of a capillary. Here, we establish the mechanical behaviors of healthy RBCs undergoing a sudden increase in shear stress at the entrance of a narrow constriction. We pumped RBCs through a constriction in a microfluidic device and used high speed video to visualize and track the flow behavior of more than 4400 RBCs. We show that approximately 85% of RBCs undergo one of four distinct modes of motion: stretching, twisting, tumbling, or rolling. Intriguingly, a plurality of cells (∼30%) exhibited twisting (rotation around the major axis parallel to the flow direction), a mechanical behavior that is not typically observed in linear velocity profiles. We present detailed statistical analyses on the dynamics of each motion and demonstrate that the behavior is highly sensitive to the location of the RBC within the channel. We further demonstrate that the observed tumbling, twisting, and rolling rotations can be rationalized qualitatively in terms of rigid body mechanics. The detailed experimental statistics presented here should serve as a useful resource for modeling of RBC behavior under physiologically important flow conditions.
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Affiliation(s)
- Nancy F Zeng
- Department of Chemical Engineering and Materials Science, University of California Davis , Davis, California 95616, USA
| | - William D Ristenpart
- Department of Chemical Engineering and Materials Science, University of California Davis , Davis, California 95616, USA
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Alterations in red blood cell deformability during storage: a microfluidic approach. BIOMED RESEARCH INTERNATIONAL 2014; 2014:764268. [PMID: 25295273 PMCID: PMC4176636 DOI: 10.1155/2014/764268] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Accepted: 08/15/2014] [Indexed: 12/11/2022]
Abstract
Red blood cells (RBCs) undergo extensive deformation when travelling through the microcapillaries. Deformability, the combined result of properties of the membrane-cytoskeleton complex, the surface area-to-volume ratio, and the hemoglobin content, is a critical determinant of capillary blood flow. During blood bank storage and in many pathophysiological conditions, RBC morphology changes, which has been suggested to be associated with decreased deformability and removal of RBC. While various techniques provide information on the rheological properties of stored RBCs, their clinical significance is controversial. We developed a microfluidic approach for evaluating RBC deformability in a physiologically meaningful and clinically significant manner. Unlike other techniques, our method enables a high-throughput determination of changes in deformation capacity to provide statistically significant data, while providing morphological information at the single-cell level. Our data show that, under conditions that closely mimic capillary dimensions and flow, the capacity to deform and the capacity to relax are not affected during storage in the blood bank. Our data also show that altered cell morphology by itself does not necessarily affect deformability.
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Björnmalm M, Yan Y, Caruso F. Engineering and evaluating drug delivery particles in microfluidic devices. J Control Release 2014; 190:139-49. [DOI: 10.1016/j.jconrel.2014.04.030] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Revised: 03/14/2014] [Accepted: 03/21/2014] [Indexed: 02/03/2023]
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Yim J, Kim H, Ryu S, Song S, Kim HO, Hyun KA, Jung HI, Joo C. Photothermal spectral-domain optical coherence reflectometry for direct measurement of hemoglobin concentration of erythrocytes. Biosens Bioelectron 2014; 57:59-64. [PMID: 24549136 DOI: 10.1016/j.bios.2014.01.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2013] [Revised: 01/23/2014] [Accepted: 01/25/2014] [Indexed: 10/25/2022]
Abstract
A novel optical detection method for hemoglobin concentration is described. The hemoglobin molecules consisting mainly of iron generate heat upon their absorption of light energy at 532 nm, which subsequently changes the refractive index of the blood. We exploit this photothermal effect to determine the hemoglobin concentration of erythrocytes without any preprocessing of blood. Highly sensitive measurement of refractive index alteration of blood samples is enabled by a spectral-domain low coherence reflectometric sensor with subnanometer-level optical path-length sensitivity. The performance and validity of the sensor are presented by comparing the measured results against the reference data acquired from an automatic hematology analyzer.
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Affiliation(s)
- Jinyeong Yim
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Hun Kim
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Suho Ryu
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Sungwook Song
- Department of Laboratory Medicine, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Hyun Ok Kim
- Department of Laboratory Medicine, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Kyung-A Hyun
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Hyo-Il Jung
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Chulmin Joo
- School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea.
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Faustino V, Pinho D, Yaginuma T, Calhelha RC, Ferreira IC, Lima R. Extensional flow-based microfluidic device: deformability assessment of red blood cells in contact with tumor cells. BIOCHIP JOURNAL 2014. [DOI: 10.1007/s13206-014-8107-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Rey J, Buffet PA, Ciceron L, Milon G, Mercereau-Puijalon O, Safeukui I. Reduced erythrocyte deformability associated with hypoargininemia during Plasmodium falciparum malaria. Sci Rep 2014; 4:3767. [PMID: 24441939 PMCID: PMC3895919 DOI: 10.1038/srep03767] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 12/20/2013] [Indexed: 11/09/2022] Open
Abstract
The mechanisms underlying reduced red blood cell (RBC) deformability during Plasmodium falciparum (Pf) malaria remain poorly understood. Here, we explore the possible involvement of the L-arginine and nitric oxide (NO) pathway on RBC deformability in Pf-infected patients and parasite cultures. RBC deformability was reduced during the acute attack (day0) and returned to normal values upon convalescence (day28). Day0 values correlated with plasma L-arginine levels (r = 0.69; p = 0.01) and weakly with parasitemia (r = −0.38; p = 0.006). In vitro, day0 patient's plasma incubated with ring-stage cultures at 41°C reduced RBC deformability, and this effect correlated strongly with plasma L-arginine levels (r = 0.89; p < 0.0001). Moreover, addition of exogenous L-arginine to the cultures increased deformability of both Pf-free and trophozoite-harboring RBCs. NO synthase activity, evidenced in Pf-infected RBCs, induced L-arginine-dependent NO production. These data show that hypoargininemia during P.falciparum malaria may altogether impair NO production and reduce RBC deformability, particularly at febrile temperature.
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Affiliation(s)
- Juliana Rey
- 1] Institut Pasteur, Immunologie Moléculaire des Parasites, Département de Parasitologie Mycologie, F- 75015 Paris, France [2] CNRS, URA2581, F- 75015 Paris, France
| | - Pierre A Buffet
- 1] INSERM - UPMC (Paris 6 University) UMRs945, F-75013 Paris, France [2] AP-HP, Department of Parasitology, Pitié Salpétrière Hospital, F-75013 Paris, France
| | - Liliane Ciceron
- 1] INSERM - UPMC (Paris 6 University) UMRs945, F-75013 Paris, France [2] AP-HP, Department of Parasitology, Pitié Salpétrière Hospital, F-75013 Paris, France
| | - Geneviève Milon
- Institut Pasteur, Immunophysiologie et Parasitisme, Département de Parasitologie Mycologie, F-75015 Paris, France
| | - Odile Mercereau-Puijalon
- 1] Institut Pasteur, Immunologie Moléculaire des Parasites, Département de Parasitologie Mycologie, F- 75015 Paris, France [2] CNRS, URA2581, F- 75015 Paris, France
| | - Innocent Safeukui
- 1] Institut Pasteur, Immunologie Moléculaire des Parasites, Département de Parasitologie Mycologie, F- 75015 Paris, France [2] CNRS, URA2581, F- 75015 Paris, France [3] Center for Rare and Neglected Diseases, and Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, USA
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Flow of Red Blood Cells Suspensions Through Hyperbolic Microcontractions. VISUALIZATION AND SIMULATION OF COMPLEX FLOWS IN BIOMEDICAL ENGINEERING 2014. [DOI: 10.1007/978-94-007-7769-9_9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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47
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A microfluidic device for partial cell separation and deformability assessment. BIOCHIP JOURNAL 2013. [DOI: 10.1007/s13206-013-7408-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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48
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Alaarg A, Schiffelers RM, van Solinge WW, van Wijk R. Red blood cell vesiculation in hereditary hemolytic anemia. Front Physiol 2013; 4:365. [PMID: 24379786 PMCID: PMC3862113 DOI: 10.3389/fphys.2013.00365] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Accepted: 11/25/2013] [Indexed: 12/14/2022] Open
Abstract
Hereditary hemolytic anemia encompasses a heterogeneous group of anemias characterized by decreased red blood cell survival because of inherited membrane, enzyme, or hemoglobin disorders. Affected red blood cells are more fragile, less deformable, and more susceptible to shear stress and oxidative damage, and show increased vesiculation. Red blood cells, as essentially all cells, constitutively release phospholipid extracellular vesicles in vivo and in vitro in a process known as vesiculation. These extracellular vesicles comprise a heterogeneous group of vesicles of different sizes and intracellular origins. They are described in literature as exosomes if they originate from multi-vesicular bodies, or as microvesicles when formed by a one-step budding process directly from the plasma membrane. Extracellular vesicles contain a multitude of bioactive molecules that are implicated in intercellular communication and in different biological and pathophysiological processes. Mature red blood cells release in principle only microvesicles. In hereditary hemolytic anemias, the underlying molecular defect affects and determines red blood cell vesiculation, resulting in shedding microvesicles of different compositions and concentrations. Despite extensive research into red blood cell biochemistry and physiology, little is known about red cell deformability and vesiculation in hereditary hemolytic anemias, and the associated pathophysiological role is incompletely assessed. In this review, we discuss recent progress in understanding extracellular vesicles biology, with focus on red blood cell vesiculation. Also, we review recent scientific findings on the molecular defects of hereditary hemolytic anemias, and their correlation with red blood cell deformability and vesiculation. Integrating bio-analytical findings on abnormalities of red blood cells and their microvesicles will be critical for a better understanding of the pathophysiology of hereditary hemolytic anemias.
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Affiliation(s)
- Amr Alaarg
- Department of Clinical Chemistry and Haematology, University Medical Center Utrecht Utrecht, Netherlands ; Department of Pharmaceutical Sciences, Utrecht University Utrecht, Netherlands
| | - Raymond M Schiffelers
- Department of Clinical Chemistry and Haematology, University Medical Center Utrecht Utrecht, Netherlands ; Department of Pharmaceutical Sciences, Utrecht University Utrecht, Netherlands
| | - Wouter W van Solinge
- Department of Clinical Chemistry and Haematology, University Medical Center Utrecht Utrecht, Netherlands
| | - Richard van Wijk
- Department of Clinical Chemistry and Haematology, University Medical Center Utrecht Utrecht, Netherlands
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Huang S, Undisz A, Diez-Silva M, Bow H, Dao M, Han J. Dynamic deformability of Plasmodium falciparum-infected erythrocytes exposed to artesunate in vitro. Integr Biol (Camb) 2013; 5:414-22. [PMID: 23254624 DOI: 10.1039/c2ib20161e] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Artesunate (ART) is widely used for the treatment of malaria, but the mechanisms of its effects on parasitized red blood cells (RBCs) are not fully understood. We investigated ART's influence on the dynamic deformability of ring-stage Plasmodium falciparum infected red blood cells (iRBCs) in order to elucidate its role in cellular mechanobiology. The dynamic deformability of RBCs was measured by passing them through a microfluidic device with repeated bottleneck structures. The quasi-static deformability measurement was performed using micropipette aspiration. After ART treatment, microfluidic experiments showed 50% decrease in iRBC transit velocity whereas only small (~10%) velocity reduction was observed among uninfected RBCs (uRBCs). Micropipette aspiration also revealed ART-induced stiffening in RBC membranes. These results demonstrate, for the first time, that ART reduces the dynamic and quasi-static RBC deformability, which may subsequently influence blood circulation through the microvasculature and spleen cordal meshwork, thus adding a new aspect to artesunate's mechanism of action.
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Affiliation(s)
- Sha Huang
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
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50
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Toksvang LN, Berg RMG. Using a classic paper by Robin Fahraeus and Torsten Lindqvist to teach basic hemorheology. ADVANCES IN PHYSIOLOGY EDUCATION 2013; 37:129-133. [PMID: 23728130 DOI: 10.1152/advan.00009.2013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
"The viscosity of the blood in narrow capillary tubes" by Robin Fåhraeus and Torsten Lindqvist (Am J Physiol 96: 562-568, 1931) can be a valuable opportunity for teaching basic hemorheological principles in undergraduate cardiovascular physiology. This classic paper demonstrates that a progressive decline in apparent viscosity occurs when blood flows through glass capillary tubes of diminishing radius, which was later designated as the "Fåhraeus-Lindqvist effect." Subsequent studies have shown that apparent viscosity continues to decline at diameters that correspond to the arteriolar segments of the systemic vascular tree, where the majority of the total peripheral resistance resides and is actively regulated in vivo. The Fåhraeus-Lindqvist effect thus reduces microvascular resistance, thereby maintaining local tissue perfusion at a relatively lower blood pressure. The paper by Fåhraeus and Lindqvist can be used as a platform for a plenary discussion of these concepts as well as of the relationships among hematocrit, vessel diameter, red blood cell deformability, and resistance to blood flow and how these factors may affect the work of the heart.
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Affiliation(s)
- Linea Natalie Toksvang
- Centre of Inflammation and Metabolism, Department of Infectious Diseases, University Hospital Rigshospitalet, Copenhagen, Denmark
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