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Elnasharty MMM, Elwan AM. Dielectric investigation of irradiated RBCs and study the role of Moringa leaves extract against radiation damage. Appl Radiat Isot 2023; 196:110776. [PMID: 36947911 DOI: 10.1016/j.apradiso.2023.110776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 11/05/2022] [Accepted: 03/11/2023] [Indexed: 03/14/2023]
Abstract
This research article introduces dielectric and thermodynamic state functions as physical markersdetecting both radiation effects and biological repairs to such damages. The red blood cells of rats were physically investigated in this work after whole body irradiation by 7 Gy of gamma rays and trying for reducing the damage effect of ionizing radiation by using the one of the best medicinal plants, Moringa leaves, which are rich with plentiful amounts of antioxidants and nutrients. The animals were divided into six groups; control, Moringa, irradiated, protected, treated, pro-treated. The physical parameters measured were impedance and DC conductivity then, relaxation time, activation energy and enthalpy change were calculated. Most of these parameters showed that the damage occurred in RBCs membrane due to ionizing radiation needs more than four weeks after irradiation to recover. As dipolar relaxation required much more time to occur and charge conduction were greatly reduced.
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Affiliation(s)
- Mohamed M M Elnasharty
- Microwave Physics and Dielectrics Dept., Physics Division, National Research Centre, 33 El Bohouth St., Dokki, P.O.12622, Giza, Egypt.
| | - Azhar M Elwan
- Dept., of Biochemistry, National Research Centre (NRC), 33 El Bohouth st., Dokki, P.O.12622, Giza, Egypt.
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Aye KT, Wattanapongpitak S, Supawat B, Kothan S, Udomtanakunchai C, Tima S, Tungjai M. Effect of pre-low-dose irradiation on anticancer activities of gallic acid in leukemic K562 and K562/Dox cells: cell viability and cellular energetic state studies. MEDICAL ONCOLOGY (NORTHWOOD, LONDON, ENGLAND) 2022; 39:229. [PMID: 36175689 DOI: 10.1007/s12032-022-01835-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 08/28/2022] [Indexed: 12/24/2022]
Abstract
The aim of this study was to determine the effects of pre-low-dose irradiation followed by gallic acid (GA) on cell viability and cellular energetic state of leukemic K562 and K562/Dox cells. The cells were irradiated with 0.02, 0.05, and 0.1 Gy of X-rays. For determining cell viability, pre-low-dose irradiation was followed by 10 or 100 µM GA at 24 h post-irradiation, and the cell viability was then determined at 48 h post-irradiation. For cellular energetic state, pre-low-dose irradiation was followed by 10 or 100 µM GA at 1.5 h post-irradiation and the mitochondrial activity, mitochondrial membrane potential (ΔΨm), and ATP level were determined at 3 h post-irradiation. The % cell viability was significantly decreased in both cells that were irradiated with X-rays followed by treatment with 10 or 100 µM GA at 24 h post-irradiation, when compared with control group. However, this did not happen when compared with GA alone without any pre-low-dose irradiation. The mitochondrial activity had significantly decreased in 10 µM GA-treated K562 cells and the mitochondrial activity, ΔΨm, and ATP levels had significantly decreased in 10 µM GA-treated K562/Dox cells after irradiation to X-rays when compared with GA alone group. In addition, the ΔΨm and ATP levels was significantly decreased in only 100 µM GA-treated K562/Dox cells, but was not decreased in 100 µM GA-treated K562 cells after exposure to X-rays. These findings suggest that pre-low-dose irradiation followed by GA could not kill K562 and K562/Dox cells, but could improve cellular energetic damage of GA effects possibly through mitochondrial impairment.
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Affiliation(s)
- Khin TheNu Aye
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand.,Center of Radiation Research and Medical Imaging, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand.,Ph.D. Degree Program in Biomedical Sciences, Faculty of Associated Medical Sciences, Chiang Mai University, Under the CMU Presidential Scholarship, Chiang Mai, Thailand
| | - Sakornniya Wattanapongpitak
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand.,Center of Radiation Research and Medical Imaging, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Benjamaporn Supawat
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand.,Center of Radiation Research and Medical Imaging, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Suchart Kothan
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand.,Center of Radiation Research and Medical Imaging, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Chatchanok Udomtanakunchai
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand.,Center of Radiation Research and Medical Imaging, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Singkome Tima
- Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Montree Tungjai
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand. .,Center of Radiation Research and Medical Imaging, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand.
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