A Comparison of Gamma Irradiation Response Models of Bovine Blood, Liver and Kidney Tissues at Radiofrequency

T Sombo,T A Ige,T Igbawua,T J Shivil,E H Agba,E R Nyatso,T S Azande,I S Aondoakaa

doi:10.4236/ojbiphy.2018.83013

Abstract

This study is aimed at identifying gamma irradiated response of bovine blood, liver and kidney tissues at radiofrequency. For this purpose, impedence meter (Booton 7200) working in conjunction with signal generators (Loadster, SG416013 and Harris G857993) and improvised parallel plate dielectric cells constructed in line with the method of Laogun et al., (2005) were used to obtain the dielectric spread parameter gamma radiation α, of blood, liver and kidney tissues exposed to gamma irradiation dose range of 1.0 - 85.0 Gy. The dielectric spread parameter α gives the extent of damage induced in an irradiated tissue. Results of this work revealed that at 0 - 50 MHz frequency range, Kidney tissues displayed higher sensitive, followed Liver tissues and lasted the bovine blood between 0 - 60 Gy but reversed for blood and liver at 85 Gy. At 0 - 100 kHz frequency range liver tissue is more venerable to radiation injuries between gamma irradiation dose range of 0 - 20 Gy while between 43 - 85 Gy the Kidney’s sensitivity is the highest followed by blood and liver tissues. This implies that the liver tissues are less liable to radiation injuries at radiofrequency. A comparison of the linear, exponential and polynomial models using Akaike Information Criteria (AIC) revealed that linear models were the most suitable models for describing the effect of gamma radiation on the dielectric dispersion properties of bovine tissues at low and high radiofrequencies. This implies that the response of the investigated tissues increases linearly with gamma irradiation dose.

Highlights

The effect of gamma radiation on human tissues has been extensively studied and findings revealed that its beneficial effects are employed in the diagnosis and treatment of various ailments like cancers
Impedence meter (Booton 7200) working in conjunction with signal generators (Loadster, SG416013 and Harris G857993) and improvised parallel plate dielectric cells constructed in line with the method of Laogun et al, (2005) were used to obtain the dielectric spread parameter gamma radiation α, of blood, liver and kidney tissues exposed to gamma irradiation dose range of 1.0 - 85.0 Gy
Analysis and Results for Dielectric Spread Parameter α, at Low and High Radiofrequency Ranges for Bovine Kidney

Summary

Introduction

The effect of gamma radiation on human tissues has been extensively studied and findings revealed that its beneficial effects are employed in the diagnosis and treatment of various ailments like cancers. Its non-beneficial effects include the induction of cancers, genetic disorder (mutation), and other numerous stochastic and non-stochastic effects [1] These effects arise from the excitation, ionization and breakage of some chemical bonds in the molecules of the exposed tissue [2]. This leads to the production of complex ions (radicals) which reacts to produce toxins. The interaction of complex ions produced as a result of ionization event in the molecules of the irradiated tissues leads to the generation of toxins These toxins are circulated throughout the body via lymphatic circulation and bloodstream [3]. Syndromes of Acute Radiation Sickness (ARS) are expressed depending on the type of induced toxin

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Conclusion