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Railean V, Buszewski B. Flow Cytometry - Sophisticated Tool for Basic Research or/and Routine Diagnosis; Impact of the Complementarity in Both Pre- as Well as Clinical Studies. Crit Rev Anal Chem 2022:1-23. [PMID: 36576036 DOI: 10.1080/10408347.2022.2154596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Flow cytometry is a sophisticated technology used widely in both basic research and as a routine tool in clinical diagnosis. The technology has progressed from single parameter detection in the 1970s and 1980s to high end multicolor analysis, with currently 30 parameters detected simultaneously, allowing the identification and purification of rare subpopulations of cells of interest. Flow cytometry continues to evolve and expand to facilitate the investigation of new diagnostic and therapeutic avenues. The present review gives an overview of basic theory and instrumentation, presents and compares the advantages and disadvantages of conventional, spectral and imaging flow cytometry as well as mass cytometry. Current methodologies and applications in both research, pre- and clinical settings are discussed, as well as potential limitations and future evolution. This finding encourages the reader to promote such relationship between basic science, diagnosis and multidisciplinary approach since the standard methods have limitations (e.g., in differentiating the cells after staining). Moreover, such path inspires future cytometry specialists develop new/alternative frontiers between pre- and clinical diagnosis and be more flexible in designing the study for both human as well as veterinary medicine.
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Affiliation(s)
- Viorica Railean
- Department of Infectious, Invasive Diseases and Veterinary Administration, Institute of Veterinary Medicine, Toruń, Poland
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University, Torun, Poland
| | - Bogusław Buszewski
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University, Torun, Poland
- Department of Environmental Chemistry and Bioanalysis, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Toruń, Poland
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2
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Scussel R, Feltrin AC, Angioletto E, Galvani NC, Fagundes MÍ, Bernardin AM, Feuser PE, de Ávila RAM, Pich CT. Ecotoxic, genotoxic, and cytotoxic potential of leachate obtained from chromated copper arsenate-treated wood ashes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:41247-41260. [PMID: 35089511 DOI: 10.1007/s11356-021-18413-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 12/26/2021] [Indexed: 06/14/2023]
Abstract
Preservative treatments increase the durability of wood, and one of the alternative treatments involves the use of chromated copper arsenate (CCA). Due to the toxicity of CCA, the disposal of CCA-treated wood residues is problematic, and burning is considered to provide a solution. The ecotoxicological potential of ash can be high when these components are toxic and mutagenic. The aim of this study was to evaluate the toxicity and genotoxicity of bottom ash leachates originating from CCA-treated wood burning. Physical-chemical analysis of the leachates revealed that in treated wood ashes leachate (CCA-TWBAL), the contents of arsenic and chromium were 59.45 mg.L-1 and 54.28 mg.L-1, respectively. In untreated wood ashes leachate (UWBAL), these contents were 0.70 mg.L-1 and 0.30 mg.L-1, respectively. CCA-TWBAL caused significant toxicity in Lactuca sativa, Allium cepa, and microcrustacean Artemia spp. (LC50 = 12.12 mg.mL-1). Comet assay analyses using NIH3T3 cells revealed that concentrations ranging from 1.0 and 2.5 mg.mL-1 increase the damage frequency (DF) and damage index (DI). According to MTT assay results, CCA-TWBAL at concentrations as low as 1 mg.mL-1 caused a significant decrease in cellular viability. Hemolysis assay analyses suggest that the arsenic and chromium leachate contents are important for the ecotoxic, cytotoxic, and genotoxic effects of CCA-TWBAL.
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Affiliation(s)
- Rahisa Scussel
- Programa de Pós-Graduação em Energia e Sustentabilidade, Universidade Federal de Santa Catarina, R. Pedro João Pereira, Mato Alto, Araranguá, SC, 88905-120, Brazil
| | - Ana Carolina Feltrin
- Laboratório de Desenvolvimento de Biomateriais e Materiais Antimicrobianos, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Universidade do Extremo Sul Catarinense, Iparque - Parque Científico e Tecnológico, Rod. Gov. Jorge Lacerda, Sangão, 3800 CEP, Criciúma, SC, 88806-000, Brazil
| | - Elidio Angioletto
- Laboratório de Desenvolvimento de Biomateriais e Materiais Antimicrobianos, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Universidade do Extremo Sul Catarinense, Iparque - Parque Científico e Tecnológico, Rod. Gov. Jorge Lacerda, Sangão, 3800 CEP, Criciúma, SC, 88806-000, Brazil.
| | - Nathalia Coral Galvani
- Laboratório de Fisiopatologia Experimental, Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Avenida Universitária, Universitário, Criciúma, SC, 88806-000, Brazil
| | - Mírian Ívens Fagundes
- Laboratório de Fisiopatologia Experimental, Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Avenida Universitária, Universitário, Criciúma, SC, 88806-000, Brazil
| | - Adriano Michael Bernardin
- Laboratório de Desenvolvimento de Biomateriais e Materiais Antimicrobianos, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Universidade do Extremo Sul Catarinense, Iparque - Parque Científico e Tecnológico, Rod. Gov. Jorge Lacerda, Sangão, 3800 CEP, Criciúma, SC, 88806-000, Brazil
| | - Paulo Emilio Feuser
- Laboratório de Fisiopatologia Experimental, Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Avenida Universitária, Universitário, Criciúma, SC, 88806-000, Brazil
| | - Ricardo Andrez Machado de Ávila
- Laboratório de Fisiopatologia Experimental, Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Avenida Universitária, Universitário, Criciúma, SC, 88806-000, Brazil
| | - Claus Tröger Pich
- Programa de Pós-Graduação em Energia e Sustentabilidade, Universidade Federal de Santa Catarina, R. Pedro João Pereira, Mato Alto, Araranguá, SC, 88905-120, Brazil
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Drvenica I, Mojsilović S, Stančić A, Marković D, Kovačić M, Maslovarić I, Rapajić I, Vučetić D, Ilić V. The effects of incubation media on the assessment of the shape of human erythrocytes by flow cytometry: a contribution to mathematical data interpretation to enable wider application of the method. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2021; 50:829-846. [PMID: 33813598 DOI: 10.1007/s00249-021-01527-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 11/07/2020] [Accepted: 03/26/2021] [Indexed: 11/29/2022]
Abstract
Flow cytometry (FC) analysis of erythrocyte shape and related biomechanical properties, such as osmotic fragility, have not moved from a research tool to regular clinical testing. The main reason is existing evidence that various pre-analytical factors influence the mathematical interpretation of the data obtained. With an aim to contribute to the standardization and broaden the use of FC for human erythrocyte shape assessment, freshly prepared peripheral blood erythrocytes isolated from healthy donors were incubated in iso and hypo-osmotic solutions (pure saline, saline with potassium and calcium, and phosphate buffered saline) and examined by FC using values of forward scatter (FSC) and side scatter (SSC). Kurtosis, skewness, Pearson's second skewness coefficient of dissymmetry (PCD), and spherical index, calculated from FSC distributions, were used for the erythrocyte shape evaluation. In all isotonic media FSC distribution and FSC-based morphology parameters showed huge inter-individual and inter-medium variation. With decreasing osmolality, in all media and samples, the size of the erythrocytes increased, and swelling index and kurtosis decreased. However, changes in skewness and PCD were influenced by the medium used and the sample tested. Compared to FSC, SSC signal in isotonic and its change in hypotonic media showed lower inter-individual variation and was not influenced by the type of medium. We propose a spherical index and kurtosis as FSC-based indicators of erythrocyte shape. As more resistant to the influence of the preanalytical treatment, SSC data appeared to be unfairly neglected for the assessment of erythrocyte shape, in comparison to the usually employed FSC data.
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Affiliation(s)
- Ivana Drvenica
- Group for Immunology, Institute for Medical Research, University of Belgrade, dr Subotića 4, POB 39, 11129, Belgrade 102, Serbia.
| | - Slavko Mojsilović
- Group for Hematology, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Ana Stančić
- Group for Immunology, Institute for Medical Research, University of Belgrade, dr Subotića 4, POB 39, 11129, Belgrade 102, Serbia
| | - Dragana Marković
- Group for Immunology, Institute for Medical Research, University of Belgrade, dr Subotića 4, POB 39, 11129, Belgrade 102, Serbia
| | - Marijana Kovačić
- Group for Immunology, Institute for Medical Research, University of Belgrade, dr Subotića 4, POB 39, 11129, Belgrade 102, Serbia
| | - Irina Maslovarić
- Group for Immunology, Institute for Medical Research, University of Belgrade, dr Subotića 4, POB 39, 11129, Belgrade 102, Serbia
| | - Ivana Rapajić
- Group for Immunology, Institute for Medical Research, University of Belgrade, dr Subotića 4, POB 39, 11129, Belgrade 102, Serbia
| | - Dušan Vučetić
- Institute for Transfusiology and Hemobiology of the Military Medical Academy, Belgrade, Serbia.,Faculty of Medicine of the Military Medical Academy, University of Defense, Belgrade, Serbia
| | - Vesna Ilić
- Group for Immunology, Institute for Medical Research, University of Belgrade, dr Subotića 4, POB 39, 11129, Belgrade 102, Serbia
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Ünal A, Kocahan Ö, Altunan B, Aksoy Gündoğdu A, Uyanık M, Özder S. Quantitative phase imaging of erythrocyte in epilepsy patients. Microsc Res Tech 2020; 84:1172-1180. [PMID: 33340178 DOI: 10.1002/jemt.23676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 12/06/2020] [Indexed: 11/08/2022]
Abstract
The present study focuses on the quantitative phase imaging of erythrocytes with the aim to compare the morphological differences between epilepsy patients under antiepileptic treatment, who have no other disease which may affect the erythrocyte morphology, and the healthy control group. The white light diffraction phase microscopy (WDPM) has been used to obtain the interferogram of the erythrocyte surfaces. The continuous wavelet transform with Paul wavelet has been chosen to calculate the surface profiles from this interferogram image. For the determination of alteration in morphology, besides WDPM, erythrocyte surfaces have been investigated by light microscope and scanning electron microscope. In this way, it has been possible to see the difference in terms of precision and implementation between the most commonly used methods with regard to the quantitative phase imaging. Erythrocytes from all the samples have been examined and displayed in both two- and three-dimensional way. We have observed that erythrocytes of patients with effective antiepileptic blood levels were more affected in morphology than healthy subjects. When we compared the erythrocyte morphological changes of patients who received monotherapy or polytherapy, no difference was observed. In conclusion, antiepileptic drugs (AEDs) cause red blood cell (RBC) morphological changes and a combined usage of WDPM with Paul wavelet and light microscopy methods are very convenient for studying the erythrocyte morphologies on multiple patients.
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Affiliation(s)
- Aysun Ünal
- Department of Neurology, Tekirdağ Namık Kemal University, Tekirdağ, Turkey
| | - Özlem Kocahan
- Department of Physics, Tekirdağ Namık Kemal University, Tekirdağ, Turkey
| | - Bengü Altunan
- Department of Neurology, Tekirdağ Namık Kemal University, Tekirdağ, Turkey
| | | | - Merve Uyanık
- Department of Physics, Tekirdağ Namık Kemal University, Tekirdağ, Turkey
| | - Serhat Özder
- Department of Physics, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
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Ding L, Bawany MH, Kuriyan AE, Ramchandran RS, Wykoff CC, Sharma G. A Novel Deep Learning Pipeline for Retinal Vessel Detection In Fluorescein Angiography. IEEE TRANSACTIONS ON IMAGE PROCESSING : A PUBLICATION OF THE IEEE SIGNAL PROCESSING SOCIETY 2020; 29:10.1109/TIP.2020.2991530. [PMID: 32396087 PMCID: PMC7648732 DOI: 10.1109/tip.2020.2991530] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
While recent advances in deep learning have significantly advanced the state of the art for vessel detection in color fundus (CF) images, the success for detecting vessels in fluorescein angiography (FA) has been stymied due to the lack of labeled ground truth datasets. We propose a novel pipeline to detect retinal vessels in FA images using deep neural networks (DNNs) that reduces the effort required for generating labeled ground truth data by combining two key components: cross-modality transfer and human-in-the-loop learning. The cross-modality transfer exploits concurrently captured CF and fundus FA images. Binary vessels maps are first detected from CF images with a pre-trained neural network and then are geometrically registered with and transferred to FA images via robust parametric chamfer alignment to a preliminary FA vessel detection obtained with an unsupervised technique. Using the transferred vessels as initial ground truth labels for deep learning, the human-in-the-loop approach progressively improves the quality of the ground truth labeling by iterating between deep-learning and labeling. The approach significantly reduces manual labeling effort while increasing engagement. We highlight several important considerations for the proposed methodology and validate the performance on three datasets. Experimental results demonstrate that the proposed pipeline significantly reduces the annotation effort and the resulting deep learning methods outperform prior existing FA vessel detection methods by a significant margin. A new public dataset, RECOVERY-FA19, is introduced that includes high-resolution ultra-widefield images and accurately labeled ground truth binary vessel maps.
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Huisjes R, Makhro A, Llaudet-Planas E, Hertz L, Petkova-Kirova P, Verhagen LP, Pignatelli S, Rab MAE, Schiffelers RM, Seiler E, van Solinge WW, Corrons JLLV, Kaestner L, Mañú-Pereira M, Bogdanova A, van Wijk R. Density, heterogeneity and deformability of red cells as markers of clinical severity in hereditary spherocytosis. Haematologica 2020; 105:338-347. [PMID: 31147440 PMCID: PMC7012482 DOI: 10.3324/haematol.2018.188151] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 05/28/2019] [Indexed: 02/06/2023] Open
Abstract
Hereditary spherocytosis (HS) originates from defective anchoring of the cytoskeletal network to the transmembrane protein complexes of the red blood cell (RBC). Red cells in HS are characterized by membrane instability and reduced deformability and there is marked heterogeneity in disease severity among patients. To unravel this variability in disease severity, we analyzed blood samples from 21 HS patients with defects in ankyrin, band 3, α-spectrin or β-spectrin using red cell indices, eosin-5-maleimide binding, microscopy, the osmotic fragility test, Percoll density gradients, vesiculation and ektacytometry to assess cell membrane stability, cellular density and deformability. Reticulocyte counts, CD71 abundance, band 4.1 a:b ratio, and glycated hemoglobin were used as markers of RBC turnover. We observed that patients with moderate/severe spherocytosis have short-living erythrocytes of low density and abnormally high intercellular heterogeneity. These cells show a prominent decrease in membrane stability and deformability and, as a consequence, are quickly removed from the circulation by the spleen. In contrast, in mild spherocytosis less pronounced reduction in deformability results in prolonged RBC lifespan and, hence, cells are subject to progressive loss of membrane. RBC from patients with mild spherocytosis thus become denser before they are taken up by the spleen. Based on our findings, we conclude that RBC membrane loss, cellular heterogeneity and density are strong markers of clinical severity in spherocytosis.
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Affiliation(s)
- Rick Huisjes
- Department of Clinical Chemistry and Hematology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Asya Makhro
- Red Blood Cell Research Group, Institute of Veterinary Physiology, Vetsuisse Faculty and the Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland
| | - Esther Llaudet-Planas
- Red Blood Cell Defects and Hematopoietic Disorders Unit, Josep Carreras Leukemia Research Institute, Badalona, Barcelona, Spain
| | - Laura Hertz
- Theoretical Medicine and Biosciences, Medical Faculty, Saarland University, Homburg/Saar, Germany
| | - Polina Petkova-Kirova
- Theoretical Medicine and Biosciences, Medical Faculty, Saarland University, Homburg/Saar, Germany
| | - Liesbeth P Verhagen
- Department of Clinical Chemistry and Hematology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Silvia Pignatelli
- Department of Clinical Chemistry and Hematology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Minke A E Rab
- Department of Clinical Chemistry and Hematology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Raymond M Schiffelers
- Department of Clinical Chemistry and Hematology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Elena Seiler
- Red Blood Cell Research Group, Institute of Veterinary Physiology, Vetsuisse Faculty and the Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland
| | - Wouter W van Solinge
- Department of Clinical Chemistry and Hematology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Joan-LLuis Vives Corrons
- Red Blood Cell Defects and Hematopoietic Disorders Unit, Josep Carreras Leukemia Research Institute, Badalona, Barcelona, Spain
| | - Lars Kaestner
- Theoretical Medicine and Biosciences, Medical Faculty, Saarland University, Homburg/Saar, Germany.,Experimental Physics, Saarland University, Saarbruecken, Germany
| | - Maria Mañú-Pereira
- Rare Anemia Research Unit. Vall d'Hebron Research Institution, University Hospital Vall d'Hebron, Barcelona, Spain
| | - Anna Bogdanova
- Red Blood Cell Research Group, Institute of Veterinary Physiology, Vetsuisse Faculty and the Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland
| | - Richard van Wijk
- Department of Clinical Chemistry and Hematology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
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Starodubtseva MN, Mitsura EF, Starodubtsev IE, Chelnokova IA, Yegorenkov NI, Volkova LI, Kharin YS. Nano- and microscale mechanical properties of erythrocytes in hereditary spherocytosis. J Biomech 2018; 83:1-8. [PMID: 30503563 DOI: 10.1016/j.jbiomech.2018.11.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 11/06/2018] [Accepted: 11/08/2018] [Indexed: 10/27/2022]
Abstract
Hereditary spherocytosis (HS), an erythrocyte membranopathy, is a heterogeneous disease, even at the level of the erythrocyte population. The paper aims at studying the mechanical properties (the Young's modulus, median and RMS roughness of friction force maps; fractal dimension, lacunarity and spatial distribution parameters of lateral force maps) of the cell surface layer of the erythrocytes of two different morphologies (discocytes and spherocytes) in HS using atomic force microscopy. The results of spatial-spectral and fractal analysis showed that the mechanical property maps of the HS spherocyte surface were more structurally homogeneous compared to the maps of HS discocytes. HS spherocytes also had a reduced RMS roughness and lacunarity of the mechanical property maps. The Young's modulus and averaged friction forces over the microscale HS spherocyte surface regions were approximately 20% higher than that of HS discocytes. The revealed significant difference at the nano- and microscales in the structural and mechanical properties of main (discoidal and spheroidal) morphological types of HS erythrocytes can potentially cause blood flow disturbance in the vascular system in HS.
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Affiliation(s)
- Maria N Starodubtseva
- Gomel State Medical University, Department of Medical and Biological Physics, Lange Str., 5, 246000 Gomel, Belarus; Radiobiology Institute of NAS of Belarus, Fedyuninskogo Str., 4, 246007 Gomel, Belarus.
| | - Ekaterina F Mitsura
- Republican Scientific and Practical Center for Radiation Medicine and Human Ecology, Ilyicha Str., 290, 246040 Gomel, Belarus
| | - Ivan E Starodubtsev
- Research Institute for Applied Problems of Mathematics and Informatics, Belarusian State University, Nezavisimosti Ave., 4, 220030 Minsk, Belarus
| | - Irina A Chelnokova
- Gomel State Medical University, Department of Medical and Biological Physics, Lange Str., 5, 246000 Gomel, Belarus; Radiobiology Institute of NAS of Belarus, Fedyuninskogo Str., 4, 246007 Gomel, Belarus
| | - Nikolai I Yegorenkov
- Gomel State Medical University, Department of Medical and Biological Physics, Lange Str., 5, 246000 Gomel, Belarus
| | - Lyudmila I Volkova
- Belarusian Medical Academy of Postgraduate Education, Brovki Str., 3, 220013 Minsk, Belarus
| | - Yuriy S Kharin
- Research Institute for Applied Problems of Mathematics and Informatics, Belarusian State University, Nezavisimosti Ave., 4, 220030 Minsk, Belarus
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S AlSalhi M, Devanesan S, E AlZahrani K, AlShebly M, Al-Qahtani F, Farhat K, Masilamani V. Impact of Diabetes Mellitus on Human Erythrocytes: Atomic Force Microscopy and Spectral Investigations. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15112368. [PMID: 30373127 PMCID: PMC6266196 DOI: 10.3390/ijerph15112368] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 10/21/2018] [Accepted: 10/24/2018] [Indexed: 12/24/2022]
Abstract
Diabetes mellitus (DM) is a common metabolic disease indicated by high sugar levels in the blood over a prolonged period. When left untreated, it can lead to long-term complications, such as cardiovascular disease, stroke, and diabetic retinopathy or foot ulcers. Approximately 415 million people (about 8.3% of the world’s population) had diabetes worldwide in 2015, with 90% of the cases classified as Type 2 DM, which is caused by insulin resistance that arises mostly from being overweight and from a lack of exercise. DM affects every part of the body, including the erythrocytes. The aim of the present report is to gain insight into the damage done to the erythrocytes of patients classified with pre-diabetes and diabetes (plenty are found in the Kingdom of Saudi Arabia, a country where young people encompass a large segment of the population). The study presents results on the morphological analysis of erythrocytes by atomic force microscopy (AFM) and molecular investigations by fluorescence spectroscopy (FS). Our results indicate significant differences (in the morphology, size, and hemolytic end products) between the erythrocytes of diabetic patients (HbA1C, glycated hemoglobin, levels of 8–10%) and normal controls. It is well-known that DM and smoking are two major contributory factors for cardiovascular diseases (CVDs), and our observations presented in this study suggest that diabetes plays a relatively less damaging role than smoking for CVD.
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Affiliation(s)
- Mohamad S AlSalhi
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
- Research Chair in Laser Diagnosis of Cancers, Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Sandhanasamy Devanesan
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
- Research Chair in Laser Diagnosis of Cancers, Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Khalid E AlZahrani
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 1451, Saudi Arabia.
| | - Mashael AlShebly
- Department of Obstetrics and Gynecology, College of Medicine, King Khalid University Hospital, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Fatima Al-Qahtani
- Hematology Unit, Department of Pathology, College of Medicine, King Saud University and King Saud University Medical City, Riyadh 11451, Saudi Arabia.
| | - Karim Farhat
- Cancer Research Chair, College of Medicine, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Vadivel Masilamani
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
- Research Chair in Laser Diagnosis of Cancers, Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
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9
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Yeow N, Tabor RF, Garnier G. Atomic force microscopy: From red blood cells to immunohaematology. Adv Colloid Interface Sci 2017; 249:149-162. [PMID: 28515013 DOI: 10.1016/j.cis.2017.05.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 05/10/2017] [Accepted: 05/10/2017] [Indexed: 10/19/2022]
Abstract
Atomic force microscopy (AFM) offers complementary imaging modes that can provide morphological and structural details of red blood cells (RBCs), and characterize interactions between specific biomolecules and RBC surface antigen. This review describes the applications of AFM in determining RBC health by the observation of cell morphology, elasticity and surface roughness. Measurement of interaction forces between plasma proteins and antibodies against RBC surface antigen using the AFM also brought new information to the immunohaematology field. With constant improvisation of the AFM in resolution and imaging time, the reaction of RBC to changes in the physico-chemistry of its environment and the presence of RBC surface antigen specific-biomolecules is achievable.
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