1
|
Sudsiri CJ, Ritchie RJ. Influence of Na+ disorder on cytoplasmic conductivity and cellular electromagnetic (EM) energy absorption of human erythrocytes (PONE-D-21-36089). PLoS One 2023; 18:e0277044. [PMID: 36821542 PMCID: PMC9949639 DOI: 10.1371/journal.pone.0277044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 10/18/2022] [Indexed: 02/24/2023] Open
Abstract
Cytoplasmic conductivity of human erythrocytes may be significantly disturbed by the composition of the external suspending media. Effects of external NaCl on cytoplasmic conductivity of human erythrocyte (Human Red Blood Cells, HRBC) were investigated in a simple NaCl system. Using thermodynamic theory cytoplasmic conductivities could be calculated from internal [K+], [Na+], [Cl-] and [HCO3-]. Effect of cell volume and cell water changes were introduced and allowed for using the Debye-Hückel-Onsager relation and Walden's rule of viscosity. Cell volume and cell water change of HRBCs were measured in suspending isotonic solutions with conductivities from 0.50 S m-1 up to hypertonic solutions of conductivity of 2.02 S m-1 at selected temperatures of 25°C (standard benchmark temperature) and 37°C (physiological temperature). In isotonic solutions, cytoplasmic conductivity of human erythrocyte decreases with rise in the external media ionic concentration and vice versa for hypertonic solutions. The HRBC is capable of rapidly regulating its volume (and shape) over quite a wide range of osmolality. Specific Absorption Rate (SAR, 900 MHz) values (W kg-1) of electromagnetic radiation are below safe limits at non-physiological 25°C but above legal limits at 37°C [National Council on Radiation Protection and Measurements, NCRP]. However, at 37°C under both hypertonic [Na+] and isotonic but low [Na+], SAR increases further beyond legal limits.
Collapse
Affiliation(s)
- Chadapust J. Sudsiri
- Department of Industrial Management, Faculty of Sciences and Industrial Technology, Prince of Songkla University, Suratthani, Thailand
| | - Raymond J. Ritchie
- Biotechnology of Electromechanics Research Unit, Faculty of Technology and Environment, Prince of Songkla University, Kathu, Phuket, Thailand
- * E-mail: ,
| |
Collapse
|
2
|
Sabuncu AC, Muldur S, Cetin B, Usta OB, Aubry N. β-Dispersion of blood during sedimentation. Sci Rep 2021; 11:2642. [PMID: 33514847 PMCID: PMC7846779 DOI: 10.1038/s41598-021-82171-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 01/08/2021] [Indexed: 01/30/2023] Open
Abstract
Aggregation of human red blood cells (RBC) is central to various pathological conditions from bacterial infections to cancer. When left at low shear conditions or at hemostasis, RBCs form aggregates, which resemble stacks of coins, known as 'rouleaux'. We experimentally examined the interfacial dielectric dispersion of aggregating RBCs. Hetastarch, an RBC aggregation agent, is used to mimic conditions leading to aggregation. Hetastrach concentration is incrementally increased in blood from healthy donors to measure the sensitivity of the technique. Time lapse electrical impedance measurements were conducted as red blood cells form rouleaux and sediment in a PDMS chamber. Theoretical modeling was used for obtaining complex permittivity of an effective single red blood cell aggregate at various concentrations of hetastarch. Time response of red blood cells' impedance was also studied to parametrize the time evolution of impedance data. Single aggregate permittivity at the onset of aggregation, evolution of interfacial dispersion parameters, and sedimentation kinetics allowed us to distinguish differential aggregation in blood.
Collapse
Affiliation(s)
- Ahmet C. Sabuncu
- grid.268323.e0000 0001 1957 0327Mechanical Engineering Department, Worcester Polytechnic Institute, Worcester, MA 01609 USA
| | - Sinan Muldur
- grid.32224.350000 0004 0386 9924Center for Engineering in Medicine, Massachusetts General Hospital, Harvard Medical School and Shriners Hospitals for Children, Boston, MA 02114 USA
| | - Barbaros Cetin
- grid.18376.3b0000 0001 0723 2427Microfluidics & Lab-On-a-Chip Research Group, Department of Mechanical Engineering, I.D. Bilkent University, Ankara, Turkey
| | - O. Berk Usta
- grid.32224.350000 0004 0386 9924Center for Engineering in Medicine, Massachusetts General Hospital, Harvard Medical School and Shriners Hospitals for Children, Boston, MA 02114 USA
| | - Nadine Aubry
- grid.429997.80000 0004 1936 7531School of Engineering, Tufts University, Medford, MA 02155 USA
| |
Collapse
|
3
|
David M, Levy E, Barshtein G, Livshits L, Arbell D, Ben Ishai P, Feldman Y. The dielectric spectroscopy of human red blood cells during 37-day storage: β-dispersion parameterization. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2020; 1862:183410. [PMID: 32687816 DOI: 10.1016/j.bbamem.2020.183410] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/10/2020] [Accepted: 07/12/2020] [Indexed: 11/17/2022]
Abstract
This study exploits dielectric spectroscopy to monitor the kinetics of red blood cells (RBC) storage lesions, focusing on those processes linked to cellular membrane interface known as β-dispersion. The dielectric response of RBC suspensions, exposed to blood-bank cold storage for 37 days, was studied using time-domain dielectric spectroscopy in the frequency range 500 kHz to 200 MHz. The measured dielectric processes are characterized by their dielectric strength (Δε) and their relaxation times (τ). Changes in the dielectric properties of the RBC suspensions, due to storage-related biophysical changes, were evaluated. For a quantitative characterization of RBC vitality, we characterized the shape of fresh and stored RBC and measured their deformability as expressed by their average elongation ratio, which was achieved under a shear stress of 3.0 Pa. During the second week of storage, an increment in the evolution of the relaxation times and in the dielectric permittivity strength of about 25% was observed. We propose that the characteristic increment of ATP, during the second and third weeks of storage, is responsible for the raise of the specific capacitance of cell membrane, which in turn explains the changes observed in the dielectric response when combined with the influence of the shape changes.
Collapse
Affiliation(s)
- Marcelo David
- The Hebrew University of Jerusalem, Applied Physics Department, Jerusalem, Israel.
| | - Evgeniya Levy
- The Hebrew University of Jerusalem, Applied Physics Department, Jerusalem, Israel
| | - Gregory Barshtein
- The Hebrew University of Jerusalem, Faculty of Medicine, Department of Biochemistry & Molecular Biology, Jerusalem, Israel
| | - Leonid Livshits
- The Hebrew University of Jerusalem, Faculty of Medicine, Department of Biochemistry & Molecular Biology, Jerusalem, Israel
| | - Dan Arbell
- Pediatric Surgery, Hadassah Medical Center, Israel
| | - Paul Ben Ishai
- Department of Physics, Ariel University, P.O.B. 3, Ariel 40700, Israel
| | - Yuri Feldman
- The Hebrew University of Jerusalem, Applied Physics Department, Jerusalem, Israel.
| |
Collapse
|
4
|
Barshtein G, Gural A, Zelig O, Arbell D, Yedgar S. Unit-to-unit variability in the deformability of red blood cells. Transfus Apher Sci 2020; 59:102876. [PMID: 32690367 DOI: 10.1016/j.transci.2020.102876] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/14/2020] [Accepted: 07/06/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND In blood banking practice, the storage duration is used as the primary criterion for inventory management, and usually, the packed red blood cells (PRBC) units are supplied primarily according to first-in-first-out (FIFO) principle. However, the actual functionality of individual PRBC units is mostly ignored. One of the main features of the RBCs not accounted for under this approach is the deformability of the red cells, i.e., their ability to affect the recipients' blood flow. The objective of the study was to analyze unit-to-unit variability in the deformability of PRBCs during their cold storage. METHODS RBC samples were obtained from twenty leukoreduced PRBC units, stored in SAGM. The deformability of cells was monitored from the day of donation throughout 42 days. RBC deformability was determined using the computerized cell flow-properties analyzer (CFA) based on cell elongation under a shear stress of 3.0 Pa, expressed by the elongation-ratio (ER). The image analysis determines the ER for each cell and provides the ER distribution in the population of 3000-6000 cells. RESULTS The deformability of freshly-collected RBCs exhibited marked variability already on the day of donation. We also found that the aging curve of PRBC deformability varies significantly among donors. SIGNIFICANCE The present study has demonstrated that storage duration is only one of the factors, and seemingly not even the major one, affecting the PRBCs functionality. Therefore, the FIFO approach is not sufficient for assessing the potential transfusion outcome, and the PRBC functionality should be determined explicitly for each unit.
Collapse
Affiliation(s)
- Gregory Barshtein
- Department of Biochemistry, Hebrew University Faculty of Medicine, Jerusalem, Israel.
| | - Alexander Gural
- Blood Bank, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Orly Zelig
- Blood Bank, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Dan Arbell
- Department of Pediatric Surgery, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Saul Yedgar
- Department of Biochemistry, Hebrew University Faculty of Medicine, Jerusalem, Israel
| |
Collapse
|
5
|
|
6
|
Levy E, David M, Barshtein G, Yedgar S, Livshits L, Ben Ishai P, Feldman Y. Dielectric Response of Cytoplasmic Water and Its Connection to the Vitality of Human Red Blood Cells. II. The Influence of Storage. J Phys Chem B 2017; 121:5273-5278. [PMID: 28453275 DOI: 10.1021/acs.jpcb.7b02662] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Maintaining an appropriate inventory of packaged blood products is a critical part of modern medicine. Consequently, the assessment of red blood cell (RBC) functionality is instrumental for the monitoring of the quality of stored RBC (sRBC) in the blood bank. We present a comprehensive study of sRBC lesion kinetics in SAGM (saline, adenine, glucose, mannitol) solution, using microwave dielectric spectroscopy (0.5-50 GHz) and cell deformability. As part of the research, we have isolated the microwave dielectric response of cytoplasmic water in sRBC. The extracted dielectric parameters are sensitive to the age of the cells and, in particular, to the critical moment of transition from discocyte to echinocyte. From the analysis of the dielectric relaxation as a function of storage-duration, we postulate that the behavior is rooted in the delicate interplay between bound and bulk water in the cellular interior. In particular, the microwave dielectric response reflects the moment when the continuous diffusion of oxygen to the cell and the oxygenation of hemoglobin affects the role played by water in the maintenance of cell integrity. These results open a possible new avenue for the noninvasive inspection of stored red blood cells, permitting a true inventory system for the modern blood bank.
Collapse
Affiliation(s)
- Evgeniya Levy
- Department of Applied Physics, The Rachel and Selim Benin School of Engineering and Computer Science, The Hebrew University of Jerusalem , Edmond J. Safra Campus, Jerusalem, 91904, Israel
| | - Marcelo David
- Department of Applied Physics, The Rachel and Selim Benin School of Engineering and Computer Science, The Hebrew University of Jerusalem , Edmond J. Safra Campus, Jerusalem, 91904, Israel
| | - Gregory Barshtein
- Department of Biochemistry & Molecular Biology, IMRIC, Faculty of Medicine, The Hebrew University of Jerusalem , Ein Kerem, Jerusalem, 91120, Israel
| | - Saul Yedgar
- Department of Biochemistry & Molecular Biology, IMRIC, Faculty of Medicine, The Hebrew University of Jerusalem , Ein Kerem, Jerusalem, 91120, Israel
| | - Leonid Livshits
- Department of Biochemistry & Molecular Biology, IMRIC, Faculty of Medicine, The Hebrew University of Jerusalem , Ein Kerem, Jerusalem, 91120, Israel
| | - Paul Ben Ishai
- Department of Physics, Ariel University , P.O.B. 3, Ariel 40700, Israel
| | - Yuri Feldman
- Department of Applied Physics, The Rachel and Selim Benin School of Engineering and Computer Science, The Hebrew University of Jerusalem , Edmond J. Safra Campus, Jerusalem, 91904, Israel
| |
Collapse
|