4.7 Review

Effects of radiation and role of plants in radioprotection: A critical review

Journal

SCIENCE OF THE TOTAL ENVIRONMENT
Volume 779, Issue -, Pages -

Publisher

ELSEVIER
DOI: 10.1016/j.scitotenv.2021.146431

Keywords

Gamma radiation; UV rays; Genotoxicity; Radioprotection; Plant; DNA repair

Funding

  1. SRM Institute of Science and Technology

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Radiation can be lethal at high doses, but beneficial in controlled doses for medical applications. Plants evolving in radiation conditions have demonstrated the ability to protect organisms against radiation. Studies on plant-based radioprotection have shown promising results and further research is needed to develop effective and safe radioprotectants for clinical use.
Radiation can be lethal at high doses, whereas controlled doses are useful in medical applications. Other applications include power generation, agriculture sterilization, nuclear weapons, and archeology. Radiation damages genetic material, which is reflected in genotoxicity and can cause hereditary damage. In the medical field, it is essential to avoid the harmful effects of radiation. Radiation countermeasures and the need for radioprotective agents have been explored in recent years. Considering plants that evolve in radiative conditions, their ability to protect organisms against radiation has been studied and demonstrated. Crude extracts, fractioned extracts, isolated phytocompounds, and plant polysaccharides from various plants have been used in radioprotection studies, and their efficiency has been proven in various in vitro and in vivo experimental models. It is important to identify the mechanism of action to develop a potent plant-based radioprotective agent. To identify this protective mechanism, it is necessary to understand the damage caused by radiation in biological systems. This review intends to discuss the effects of ionizing radiation on biological systems and evaluate plant-based radioprotectants that have tested thus far as well as their mechanism of action in protecting against the toxic effects of radiation. From the review, the mechanism of radioprotection exhibited by the plant-based products could be understood. Meanwhile, we strongly suggest that the potential products identified so far should undergo clinical trials for critically evaluating their effects and for developing an ideal and compatible radioprotectant with no side-effects. (c) 2021 Elsevier B.V. All rights reserved.

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